TW201543791A - Motor of ceiling fan - Google Patents

Abstract

A motor of ceiling fan is disclosed for simplifying assembly procedure thereof. The motor of ceiling fan includes a shaft, a bearing case and a rotor. The shaft has a first shoulder and a second shoulder facing two ends thereof respectively, with a stator mounted to the shaft. The bearing case contains a first bearing and a second bearing for sustaining the shaft, wherein the bearing case has an annulate lip, and wherein the annulate lip and the second shoulder jointly clamp the second bearing. The fixing member and the second shoulder clamps the second bearing. The rotor includes a housing and a vanes interconnecting board, with the housing coupled to the bearing case, and with the vanes interconnecting board coupled to the housing. The vanes interconnecting board includes an abutting portion, wherein the abutting portion and the first shoulder jointly clamp the first bearing.

Description

Ceiling fan motor

The present invention relates to a ceiling fan motor, and more particularly to a ceiling fan motor capable of setting a number of bearings by a bearing.

Referring to Fig. 1, there is shown a conventional ceiling fan motor 9, which includes a stator 91 and a rotor 92. The stator 91 has a core 911, and the core 911 is wound with a coil 912. The center of the core 911 is provided with an axis 913. The rotor 92 is provided with an upper casing 921, a lower casing 922 and a middle ring 923. The middle ring 923 is connected between the upper casing 921 and the lower casing 922, and the upper and lower casings 921 and 922 are provided with bearings 924 for the shaft 913 to pass through, so that the stator 91 can be fixed to the stator 91 Between the upper and lower shells 921, 922. An embodiment of the conventional ceiling fan motor 9 has been disclosed in the Patent No. I326959 of the Republic of China, "DC Brushless Motor Fixing and Rotor Improvement for Ceiling Fans".

The ceiling fan motor 9 rotor 92 directly joins the shaft center 913 of the stator 91 via the bearing 924. Therefore, in order to ensure that the rotor 92 stably rotates around the stator 91, the shaft center 913 of the stator 91 must form a tight fit with the bearing 924. The inner ring of the bearing 924 is prevented from rotating relative to the axis 913. The bearing 924 must be assembled and assembled to the shaft 913 in a forced manner to form a tight fit with the shaft 913. In other words, the mounting of the bearing 924 requires additional manpower or implements to operate the bearing tightening tool. The assembly procedure of the ceiling fan motor 9 is complicated and time consuming, and the ceiling fan motor 9 is usually bulky, which is liable to cause problems in processing and assembly, and further increases the production cost of the ceiling fan motor 9.

Furthermore, since the shaft 913 is in tight engagement with the bearing 924, the The vibration generated when the rotor 92 is in operation is easily transmitted directly to the shaft 913 via the bearing 924, thereby indirectly affecting the electronic components in the stator 91 or other components connected to the shaft 913, which easily leads to an increase in the failure rate of the components. Therefore, the life of the ceiling fan motor 9 is negatively affected.

In summary, the conventional ceiling fan motor 9 has the disadvantages of "complex assembly process" and "short service life", and it is urgent to provide a further improved ceiling fan motor to improve the market value of the conventional ceiling fan motor.

An object of the present invention is to provide a ceiling fan motor that combines a bearing set with a shaft center, the bearing set includes a bearing sleeve, and the bearing sleeve houses a first bearing and a second bearing, and the bearing sleeve is coupled to the outer circumference. a rotor including a housing and a blade adapter plate coupled to the bearing sleeve, the blade adapter plate having an abutting portion, and the bearing sleeve has a ring lip, the abutting portion Cooperating with the first shoulder to position the first bearing, the ring lip and the second shoulder jointly clamping and positioning the second bearing, so that the first bearing and the second bearing can be combined with each other during processing and assembly The shaft core forms a non-tight fit and has the effect of simplifying the assembly process.

Another object of the present invention is to provide a ceiling fan motor, wherein a fixing member is disposed between the abutting portion of the blade adapter plate and the first bearing or the second bearing to absorb the vibration generated when the rotor pivots. In addition, the vibration of the rotor is prevented from indirectly affecting a certain stator or other components connected to the axial center via the axial center, and has the effect of prolonging the service life of the ceiling fan motor.

A further object of the present invention is to provide a ceiling fan motor, which is provided with a plurality of positioning slots through the bottom cover of the housing, the positioning slots are arranged along the circumferential direction of the bottom cover, and the locking holes of the blade adapter plate are respectively The axial direction of the axial center is opposite to the positioning groove, so that the ceiling fan motor can be formed with different number of ceiling fan blades by replacing the blade adapter plates having different number of keyholes, and the overall production of the ceiling fan motor is reduced. Cost effectiveness

In order to achieve the foregoing object, the technical method of the present invention includes: a ceiling fan motor comprising: an axis having a first shoulder and a second shoulder, the first shoulder and the second shoulder Do not face the two ends of the shaft, the shaft core is combined with a stator; a bearing sleeve, the bearing sleeve houses a first bearing and a second bearing for supporting the shaft center, and one end of the bearing sleeve has a ring lip The ring lip and the second shoulder portion jointly clamp the second bearing; and a rotor having a casing and a blade adapter plate, the casing being coupled to the bearing sleeve, the blade transfer The plate is coupled to the housing, and the blade adapter plate includes a plurality of locking holes and an abutting portion, the locking hole is configured to be coupled with the ceiling fan blade, and the abutting portion and the first shoulder portion are jointly clamped and positioned First bearing.

In the ceiling fan motor of the present invention, the housing includes a bottom cover, the blade adapter plate is coupled to the bottom cover away from a surface of the stator, the first shoulder is directed toward the bottom cover, and the first shoulder is Formed between the bottom cover and the second shoulder.

In the ceiling fan motor of the present invention, the shaft center has an enlarged diameter portion, and the first shoulder portion and the second shoulder portion are respectively formed on two sides of the enlarged diameter portion.

In the ceiling fan motor of the present invention, the first bearing and the second bearing respectively have an outer ring and an inner ring, and the bearing sleeve is coupled to the outer circumference of the outer ring of the first bearing and the second bearing, the axial center The system is disposed in the inner ring of the first bearing and the second bearing.

The ceiling fan motor of the present invention, wherein the bearing sleeve has an accommodating space therein, the first bearing and the second bearing system are accommodated in the accommodating space, and the bearing sleeve has a first connection with the accommodating space. An opening and a second opening, the first opening and the second opening are respectively formed at two ends of the bearing sleeve, the first shoulder of the shaft is oriented toward the first opening, and the second shoulder of the shaft is Facing the second opening.

In the ceiling fan motor of the present invention, a through hole is formed in the center of the bottom cover, and the through hole is opposite to the first opening and the second opening of the bearing sleeve in an axial direction of the shaft.

The ceiling fan motor of the present invention, wherein the perforation has a larger aperture than the bearing sleeve An outer diameter, the bearing sleeve protrudes outside the housing via the through hole.

The ceiling fan motor of the present invention, wherein the abutting portion extends from the blade adapter plate toward the first opening to protrude into the first opening and to position the first bearing, the ring lip being disposed adjacent to the bearing sleeve One end of the second opening and extending radially from the bearing sleeve toward the shaft to position the second bearing.

In the ceiling fan motor of the present invention, the first shoulder is positioned to the inner ring of the first bearing, the second shoulder is positioned to the inner ring of the second bearing, and the abutting portion is positioned on the first bearing An outer ring for positioning the first bearing between the abutting portion and the first shoulder, the ring lip being positioned on the outer ring of the second bearing to position the second bearing The ring lip is between the second shoulder.

In the ceiling fan motor of the present invention, a fixing member is disposed between the abutting portion of the blade adapter plate and the first bearing, and the two sides of the fixing member respectively abut the first bearing and the abutting portion.

The ceiling fan motor of the present invention, wherein the bearing sleeve is provided with a first joint portion, the first joint portion is disposed at one end of the bearing sleeve adjacent to the first opening, and the bottom cover is provided with a second joint portion, the second joint portion The first joint portion of the bearing sleeve and the bearing sleeve are coupled to each other to couple the housing to the bearing sleeve.

In the ceiling fan motor of the present invention, the bottom cover is provided with a first assembly portion, and the blade adapter plate is provided with a second assembly portion, and the second assembly portion is coupled to the first assembly portion of the bottom cover. The blade adapter plate is coupled to the housing.

In the ceiling fan motor of the present invention, the first assembly portion of the bottom cover is a plurality of fixing holes, and the second assembly portion of the blade adapter plate is a plurality of through holes, and the plurality of through holes formed by the second assembly portion are respectively The plurality of fixing holes formed by the first assembling portion are aligned with each other, and each of the through holes extends through the fixing member to be fixed to each of the fixing holes.

In the ceiling fan motor of the present invention, the bottom cover of the housing is provided with a plurality of positioning slots, the positioning slots are arranged along a circumferential direction of the bottom cover, and the locking holes of the blade adapter plate are respectively One of the axial directions is opposite to the positioning groove.

In the ceiling fan motor of the present invention, the positioning groove is an arcuate groove opened in a circumferential direction of the bottom cover.

In the ceiling fan motor of the present invention, the positioning groove is a through groove extending through the bottom cover.

In the ceiling fan motor of the present invention, the positioning groove is a blind groove opening toward the blade adapter plate.

In the ceiling fan motor of the present invention, the number of the positioning grooves is five, and the two ends of the positioning groove occupy an arc of more than 60° in the circumferential direction.

In the ceiling fan motor of the present invention, the keyhole of the blade adapter plate is for combining two, three, four or five ceiling fan blades.

In the ceiling fan motor of the present invention, the inner ring of the first bearing and the second bearing respectively form a non-tight fit with the shaft center.

〔this invention〕

1‧‧‧Axis

11‧‧‧First shoulder

12‧‧‧Second shoulder

13‧‧‧Expanding Department

2‧‧‧bearing group

21‧‧‧ bearing sleeve

21a‧‧‧first opening

21b‧‧‧ second opening

211‧‧‧ ring lip

212‧‧‧ first joint

22‧‧‧First bearing

221‧‧‧ outer ring

222‧‧‧ Inner Ring

23‧‧‧second bearing

231‧‧‧ outer ring

232‧‧‧ Inner Ring

24‧‧‧Fixed parts

3‧‧‧ Stator

31‧‧‧ iron core

4‧‧‧Rotor

41‧‧‧Shell

411‧‧‧ bottom cover

411a‧‧‧Perforation

411b‧‧‧Second junction

411c‧‧‧First Assembly Department

411d‧‧‧ positioning slot

412‧‧‧Circle wall

42‧‧‧blade adapter plate

421‧‧‧Keyhole

422‧‧‧Apartment

423‧‧‧Second Assembly Department

43‧‧‧Permanent magnet set

5‧‧‧ Ceiling fan blades

R‧‧‧ accommodating space

F‧‧‧Fixed components

S‧‧‧Locking components

C‧‧‧Combined components

[study]

9‧‧‧Ceiling fan motor

91‧‧‧ Stator

911‧‧‧ iron core

912‧‧‧ coil

913‧‧‧Axis

92‧‧‧Rotor

921‧‧‧Shell

922‧‧‧ lower case

923‧‧‧ middle circle

924‧‧‧ bearing

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

Fig. 2 is a perspective exploded view of the first embodiment of the present invention.

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

Fig. 4 is an exploded perspective view showing the shaft center and the bearing group of the first embodiment of the present invention.

Fig. 5 is a schematic view showing the assembly of the blade adapter plate of the first embodiment of the present invention in combination with five ceiling fan blades.

Fig. 6 is a schematic view showing the assembly of the blade adapter plate of the first embodiment of the present invention in combination with four ceiling fan blades.

Figure 7 is a schematic view showing the assembly of the blade adapter plate of the first embodiment of the present invention in combination with three ceiling fan blades.

Figure 8 is a cross-sectional view showing the structure of a second embodiment of the present invention.

Figure 9 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; In the present embodiment, the ceiling fan motor is an outer rotor motor. However, the ceiling fan motor may also be an inner rotor motor, which is not limited in the present invention. The ceiling fan motor of the first embodiment includes an axial center 1 and a bearing set 2 coupled to each other.

The shaft 1 has a first shoulder portion 11 and a second shoulder portion 12, the first shoulder portion 11 and the second shoulder portion 12 respectively facing the two ends of the shaft center 1, and the shaft center 1 preferably has An enlarged diameter portion 13 , the first shoulder portion 11 and the second shoulder portion 12 may be respectively formed on two sides of the enlarged diameter portion 13 . The enlarged diameter portion 13 may be integrally formed on the shaft core 1; or the enlarged diameter portion 13 may be a separate member sleeved on the outer circumference of the shaft core 1 to join the shaft core 1 and form the first shoulder portion. 11 and the second shoulder 12.

Please refer to FIG. 4 together for an enlarged view of the shaft 1 and the bearing set 2. The bearing set 2 includes a bearing sleeve 21, and the bearing sleeve 21 houses a first bearing 22 and a second bearing 23. The first bearing 22 and the second bearing 23 respectively support the shaft 1 and the The first and second bearings 22 and 23 are respectively positioned on the first shoulder 11 and the second shoulder 12 of the shaft 1 , wherein the inner ring 222 of the first bearing 22 is positioned by the first shoulder 11 The second shoulder 12 positions the inner ring 232 of the second bearing 23. An accommodating space R is formed in the bearing sleeve 21, and the first bearing 22 and the second bearing 23 are received in the accommodating space R, and the inner peripheral surface of the bearing sleeve 21 abuts the first bearing 22 and the second bearing 23, and the bearing sleeve 21 has a first opening 21a and a second opening 21b that communicate with the accommodating space R. The first opening 21a and the second opening 21b are respectively formed on the bearing. The two ends of the sleeve 21 enable the axis 1 to pass through the first opening 21a, the first bearing 22, the second bearing 23 and the second opening 21b, respectively Through the accommodating space R. The first shoulder portion 11 of the shaft core 1 faces the first opening 21a, and the second shoulder portion 12 of the shaft core 1 faces the second opening 21b. The bearing sleeve 21 is provided with a ring lip 211. The ring lip 211 can be disposed at one end of the bearing sleeve 21 adjacent to the second opening 21b, and extends radially from the bearing sleeve 21 toward the shaft center 1 for positioning the first portion. The second bearing 23 is formed between the first opening 21 a and the first shoulder 11 , and the second bearing 23 is formed between the second opening 21 b and the second shoulder 12 . .

The ceiling fan motor of the first embodiment further includes a stator 3 and a rotor 4, the stator 3 having an iron core 31 coupled to the shaft core 1; the rotor 4 has a housing 41, the shell The body 41 is coupled to the bearing sleeve 21. In detail, in the embodiment, the housing includes a bottom cover 411, and the first shoulder 11 of the shaft 1 faces the bottom cover 411 such that the first shoulder 11 is formed on the bottom cover 411. Between the second shoulder portion 12 and the second shoulder portion 12; in other words, since the first and second shoulder portions 11, 12 of the shaft center 1 face the first and second openings 21a, 21b, respectively, the first shoulder portion 11, The first opening 21a of the bearing sleeve 21 and the first bearing 22 are formed on one side of the bearing sleeve 21 adjacent to the bottom cover 411, the second shoulder 12, the second opening 21b of the bearing sleeve 21 and the first The two bearings 23 are formed on one side of the bearing sleeve 21 away from the bottom cover 411. A through hole 411a is defined in the center of the bottom cover 411. The through hole 411a is opposite to the first opening 21a and the second opening 21b of the bearing sleeve 21 in an axial direction of the shaft center 1, so that the through hole 411a is available for the hole 411a. The shaft 1 passes through so that the shaft 1 can penetrate the bottom cover 411. In this embodiment, the diameter of the through hole 411a is larger than the outer diameter of the bearing sleeve 21, so that the bearing sleeve 21 can protrude outside the housing 41 via the through hole 411a, but the invention is not limited thereto. .

The bearing sleeve 21 can be provided with a first joint portion 212. The first joint portion 212 can be disposed at one end of the bearing sleeve 21 adjacent to the first opening 21a. The bottom cover 411 can be provided with a second joint portion 411b. The second joint portion 411b is configured to be aligned with the first joint portion 212 of the bearing sleeve 21. In the embodiment, the first and second joint portions 212, 411b abut each other and form a tight fit. So that the housing 41 and the bearing sleeve 21 can Strong enough to combine. However, the first and second joint portions 212 and 411b may be coupled to each other by welding, splicing, bonding, press fitting, locking or other conventional combination, and the invention is not limited thereto.

In addition, the rotor 4 further includes a blade adapter plate 42 that can be coupled to the bottom cover 411 away from a surface of the core 31. The blade adapter plate 42 includes a plurality of locking holes 421 and an abutting portion 422. The locking hole 421 is adapted to be coupled to the ceiling fan blade 5; the abutting portion 422 extends from the blade adapter plate 42 toward the first opening 21a to protrude into the first opening 21a and position the first bearing 22. Since the bottom cover 411 has a through hole 411a opposite to the first opening 21a of the bearing sleeve 21 in the axial direction of the axial center 1, the abutting portion 422 can respectively pass through the first opening 21a and the through hole 411a. To position the first bearing 22.

In detail, the first bearing 22 and the second bearing 23 respectively have an outer ring 221, 231 and an inner ring 222, 232. The bearing sleeve 21 is coupled to the first and second bearings 22, 23. The outer circumference of the rings 221, 231, the shaft core 1 is disposed in the inner rings 222, 232 of the first and second bearings 22, 23 to position the inner ring 222 of the first bearing 22 from the first shoulder portion 11 And the inner ring 232 of the second bearing 23 is positioned by the second shoulder 12. The abutting portion 422 of the blade adapter plate 42 is positioned on the outer ring 221 of the first bearing 22 to clamp the first bearing 22 between the abutting portion 422 and the first shoulder portion 11; The ring lip 211 of the bearing sleeve 21 is positioned on the outer ring 231 of the second bearing 23 to clamp the second bearing 23 between the ring lip 211 and the second shoulder 12. In other words, the first shoulder portion 11 and the abutting portion 422 jointly clamp the first bearing 22, and the second shoulder portion 12 and the ring lip 211 together clamp and position the second bearing 23.

The bottom cover 411 can be provided with a first assembly portion 411c. The blade adapter plate 42 can be provided with a second assembly portion 423 for the first assembly portion 411c of the bottom cover 411. The opposing alignments are combined to couple the blade adapter plate 42 to the housing 41. In the embodiment, the first assembly portion 411c of the bottom cover 411 is a plurality of fixing holes, and the blade is turned The second assembly portion 423 of the connecting plate 42 is a plurality of through holes, and the plurality of through holes formed by the second assembling portion 423 are respectively aligned with the plurality of fixing holes formed by the first assembling portion 411c, and each of the through holes The holes extend through the fixing member F to be fixed to the respective fixing holes. The first and second assembly portions 411c and 423 may be welded, snapped, spliced or other conventional assembly structures in addition to the locking structure formed by the fixing holes and the through holes. The housing 41 and the blade adapter plate 42 are loosened, and the invention is not limited thereto.

The housing 41 of the rotor 4 may further include a ring wall 412 coupled to the outer periphery of the bottom cover 411, and the rotor 4 has a permanent magnet group 43 to which the permanent magnet group 43 is coupled. The inner peripheral wall of the wall 412. Thereby, the permanent magnet group 43 can be disposed toward the iron core 31, and a gap is formed between the permanent magnet group 43 and the iron core 31, so that the first bearing 22 and the second bearing 23 are outside the ring 221, 231 will rotate together with the bearing sleeve 21, the rotor 4 and the blade adapter plate 42. The inner rings 222, 232 of the first bearing 22 and the second bearing 23 will be common with the stator 3 and the shaft core 1. Keep in a fixed position. Since the stator 3 and the rotor 4 are those of ordinary skill in the art, the conventional techniques can be easily understood, and the detailed structure and operation principle will not be described again.

With the above structure, during the processing and assembly process of the ceiling fan motor of the first embodiment, the first bearing 22 and the second bearing 23 of the bearing set 2 can be respectively sleeved on the shaft center from the two ends of the shaft core 1 1. The inner ring 222, 232 of the first bearing 22 and the second bearing 23 are respectively positioned on the first shoulder portion 11 and the second shoulder portion 12; then, the bearing sleeve 21 is coupled to the first bearing 22 and the outer circumference of the outer ring 221, 231 of the second bearing 23, the ring lip 211 is positioned on the outer ring 231 of the second bearing 23; and the housing 41 of the rotor 4 is coupled to the bearing sleeve 21, and then The blade adapter plate 42 is coupled to the bottom cover 411 of the housing 41, and the abutting portion 422 of the blade adapter plate 42 is positioned on the outer ring 221 of the first bearing 22, thereby completing the bearing assembly 2 and The assembly procedure of the shaft 1 . Accordingly, the first bearing portion 22 and the abutting portion 422 are commonly clamped and positioned by the first bearing portion 22, and the second shoulder portion 12 and the ring lip 211 are clamped together. The second bearing 23 can effectively position the first bearing 22 and the second bearing 23. Therefore, the inner rings 222 and 232 of the first bearing 22 and the second bearing 23 can form a non-tight fit with the shaft 1 during processing and assembly, thereby effectively simplifying the assembly process of the ceiling fan motor.

It should be noted that the ceiling fan blade 5 is coupled to the locking hole 421 of the blade adapter plate 42 via a locking component S, so that the blade adapter plate 42 can be combined with the number of the ceiling fan blades 5 The number of the keyholes 421 is determined. In other words, the ceiling fan motor can be formed with a different number of ceiling fan blades 5 by replacing the blade adapter plates 42 having a different number of keyholes 421. The positioning of the bottom cover 411 of the housing 41 corresponding to the locking hole 421 of the blade adapter plate 42 requires a plurality of positioning slots 411d, which may be through the bottom cover 411; or The positioning groove 411d may be a blind groove facing the blade adapter plate 42, and the invention is not limited thereto. The positioning slots 411d are arranged along the circumferential direction of the bottom cover 411, and the locking holes 421 of the blade adapter plate 42 are respectively opposite to the positioning slots 411d along the axial direction of the axis 1. Therefore, the locking component S for locking the ceiling fan blade 5 can pass through the locking hole 421 and can protrude into the positioning groove 411d of the bottom cover 411 without being blocked by the bottom cover 411. Therefore, the ceiling fan blade 5 can be firmly coupled to the blade adapter plate 42.

Although the blade adapter plate 42 can be combined with a different number of ceiling fan blades 5 by replacing the blade adapter plates 42 having a different number of keyholes 421, the ceiling fan blades 5 can be combined to avoid the blade adapter plates 42. The number of the positioning slots 411d is preferably limited by the position and the number of the positioning slots 411d. The positioning slots 411d are preferably arcuate slots extending in the circumferential direction of the bottom cover 411. In this embodiment, the number of the positioning slots 411d is five, and the arc of the two ends of the positioning slot 411d may be greater than 60° in the circumferential direction. Therefore, refer to FIG. 5, When the locking hole 421 of the blade adapter plate 42 can be used to join the five ceiling fan blades 5, each of the locking holes 421 is opposite to the positioning groove 411d along the axial direction of the axis 1, thereby locking The locking element S of the ceiling fan blade 5 can pass through the locking hole 421 and can protrude into the positioning groove 411d of the bottom cover 411 without being blocked by the bottom cover 411, so that the five ceiling fan blades 5 can be stabilized. It is coupled to the blade adapter plate 42.

Referring to FIG. 6 again, when the locking hole 421 of the blade adapter plate 42 is used to join the four ceiling fan blades 5, since the positioning groove 411d is an arcuate groove and the number is five, and the positioning The arc ends of the two ends of the groove 411d may be greater than 60° in the circumferential direction, so that each of the locking holes 421 is still opposite to the positioning groove 411d along the axial direction of the axis 1, so that the four ceiling fan blades 5 are It can be firmly coupled to the blade adapter plate 42. Since the locking hole 421 of the blade adapter plate 42 can be combined with four ceiling fan blades, the blade adapter plate 42 can also be combined with two ceiling fan blades 5, which can be easily considered by those having ordinary knowledge in the field of the present invention. And.

Referring to FIG. 7 again, when the locking hole 421 of the blade adapter plate 42 is adapted to be combined with the three ceiling fan blades 5, since the positioning groove 411d is an arcuate groove and the number is five, and the positioning is The arc ends of the two ends of the groove 411d may be greater than 60° in the circumferential direction, so that the locking holes 421 are still opposite to the positioning groove 411d along the axial direction of the axis 1, so that the three ceiling fan blades 5 are It can be firmly coupled to the blade adapter plate 42. In other words, the ceiling fan motor of the present embodiment is provided with five positioning slots 411d by the bottom cover 411 of the housing 41 of the rotor 4, and each of the positioning slots 411d is formed with an arc groove and arranged along the circumferential direction of the bottom cover 411. When the housing 41 is combined with the blade adapter plate 42 having a different number of the locking holes 421, the locking holes 421 of each of the blade adapter plates 42 can be opposite to the positioning slot 411d along the axial direction of the axis 1 Thus, regardless of the locking hole 421 of the blade adapter plate 42 for combining two, three, four or five ceiling fan blades 5, the ceiling fan blades 5 can be firmly coupled to the blade adapter plate 42.

Therefore, the ceiling fan motor of the first embodiment is provided with a plurality of positioning slots 411d through the bottom cover 411 of the housing 41. The positioning slots 411d are arranged along the circumferential direction of the bottom cover 411, and can be replaced by The blade adapter plate 42 has a number of different locking holes 421, so that the ceiling fan motor is formed with different numbers of the ceiling fan blades 5, so that the housing 41 of different specifications is not required to be opened corresponding to different numbers of the ceiling fan blades 5, thereby effectively reducing the ceiling fan motor. The overall production cost. The shape, the number and the arrangement manner of the positioning groove 411d can be determined according to the corresponding blade of the housing 41. Depending on the type of the adapter plate 42, the invention is not limited thereto.

Referring to FIG. 8, a ceiling fan motor according to a second embodiment of the present invention is different from the first embodiment in that, in the embodiment, the second joint portion 411b of the bottom cover 411 is fixed. The first joint portion 212 of the bearing sleeve 21 is a plurality of through holes, and the plurality of through holes formed by the first joint portion 212 are respectively aligned with the plurality of fixed holes formed by the second joint portion 411b, and Each of the through holes extends through the coupling member C to be fixed to each of the fixing holes. Therefore, the first and second joint portions 212 and 411b of the first embodiment are fastened to each other by a tight fit. The ceiling fan motor of the embodiment can be coupled to the first and second through the joint component C. The joint portions 212 and 411b can further simplify the assembly procedure of the ceiling fan motor.

Furthermore, the bearing set 2 can be provided with a fixing member 24 between the abutting portion 422 of the blade adapter plate 42 and the first bearing 22, and the fixing member 24 can be a wave type gasket, a spring piece, a rubber ring, A retaining ring, a leaf spring or another flexible conventional buffering structure, and the two sides of the fixing member 24 respectively abut the outer ring 221 of the first bearing 22 and the abutting portion 422. Thereby, the fixing member 24 can provide a buffering function, effectively absorb the vibration generated when the rotor 4 is pivoted, and ensure that the vibration is not transmitted to the shaft center 1 through the bearing set 2, thereby avoiding the vibration of the rotor 4. The stator 3 or other components (for example, circuit boards) that connect the axis 1 are indirectly influenced via the axis 1 . Moreover, the fixing member 24 can compensate for the gap between the abutting portion 422 and the first bearing 22 due to process tolerance, and provide a pre-pressure to the first bearing 22, thereby avoiding the first bearing 22 A pivot is generated with respect to the bearing sleeve 21.

Referring to FIG. 9, a ceiling fan motor according to a third embodiment of the present invention is different from the foregoing first embodiment in that the ceiling fan motor of the third embodiment is an inner rotor motor, and the permanent magnet of the rotor 4 The set 43 can be coupled to the bearing sleeve 21, the stator 3 remains fixed to the shaft 1 and the permanent magnet set 43 is likewise disposed towards the core 31. Thereby, the permanent magnet group 43 is rotated together with the bearing sleeve 21 and the outer rings 221, 231 of the first and second bearings 22, 23, and the inner ring 222 of the first and second bearings 22, 23, 232 will be with the stator 3 and the The shafts 1 are held together in a fixed position, similar to the rotor motor of the first embodiment. In other words, the ceiling fan motor of the present invention may be an outer rotor motor or an inner rotor motor.

The main feature of the ceiling fan motor of the first, second and third embodiments of the present invention is that a bearing set 2 is coupled to a shaft core 1 having a first shoulder portion 11 by the structural features disclosed above. And a second shoulder portion 12, the bearing set 2 includes a bearing sleeve 21, wherein the bearing sleeve 21 houses a first bearing 22 and a second bearing 23, and the shaft core 1 is received by the first bearing 22 and the The second bearing 23 is supported by the outer circumference of the bearing sleeve 21, and the rotor 4 includes a casing 41 and a blade adapter plate 42. The bottom cover 411 of the casing 41 is coupled to the bearing sleeve 21. The blade adapter plate 42 is coupled to the bottom cover 411. The blade adapter plate 42 has an abutting portion 422. The bearing sleeve 21 has a ring lip 211. The abutting portion 422 can clamp and position the first bearing 22 together with the first shoulder portion 11. The second bearing 23 is clamped together with the second shoulder 12 .

Therefore, the inner ring 222, 232 of the first bearing 22 and the second bearing 23 can form a non-tight fit with the shaft 1 during processing and assembly, and the bearing sleeve 21 and the blade adapter plate 42 are transmitted through the bearing sleeve 21 and the blade adapter plate 42. Cooperating and positioning the first and second bearings 22 and 23, the first bearing 22 and the second bearing 23 can be effectively positioned to complete the assembly of the bearing set 2, and the stator 1 can be provided with a certain stator 3 outside. The stator 3 and the rotor 4 are coupled to each other via the shaft center 1 and the bearing group 2.

It can be seen that the stator 91 and the rotor 92 of the conventional ceiling fan motor 9 are directly coupled to each other via the bearing 924, so that the shaft 913 must be tightly fitted with the bearing 924. The stator of the ceiling fan motor of the preferred embodiment of the present invention 3 and the rotor 4 are coupled to each other via the shaft core 1 and the bearing set 2, so that the first bearing 22 and the second bearing 23 can form a non-tight fit with the shaft center 1 during processing and assembly. There is no need to use extra manpower or tools to operate the bearing tightening tool, which does have the effect of simplifying the assembly process.

Furthermore, a fixing member 24 may be disposed between the abutting portion 422 of the blade adapter plate 42 and the first bearing 22 . By providing the fixing member 24, the vibration generated when the rotor 4 is pivoted can be absorbed, thereby preventing the vibration of the rotor 4 from indirectly affecting the stator 3 or other components connecting the shaft core 1 through the shaft center 1 and the fixing member 24 can compensate for the gap between the abutting portion 422 and the first bearing 22 due to process tolerance, and provide a pre-pressure to the first bearing 22, thereby preventing the first bearing 22 from being generated relative to the bearing sleeve 21 By pivoting, effectively reducing the failure rate of the component, the ceiling fan motor of the embodiment of the present invention does have the effect of extending the service life of the ceiling fan motor.

In addition, a plurality of positioning slots 411d are defined in the bottom cover 411 of the housing 41. The positioning slots 411d are arranged along the circumferential direction of the bottom cover 411, and the locking holes 421 of the blade adapter plate 42 are respectively along the axis. The axial direction of the core 1 is opposite to the positioning groove 411d, so that the ceiling fan motor can be formed with a different number of the ceiling fan blades 5 by replacing the number of the blade adapter plates 42 having different numbers of the locking holes 421. The ceiling fan blade 5 is opened to mold the housing 41 of different specifications, and has the effect of reducing the overall production cost of the ceiling fan motor.

In summary, the ceiling fan motor of the present invention can achieve many functions such as simplifying the assembly process, prolonging the service life, and reducing the overall production cost.

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‧‧‧Axis

11‧‧‧First shoulder

12‧‧‧Second shoulder

13‧‧‧Expanding Department

2‧‧‧bearing group

21‧‧‧ bearing sleeve

21a‧‧‧first opening

21b‧‧‧ second opening

211‧‧‧ ring lip

212‧‧‧ first joint

22‧‧‧First bearing

221‧‧‧ outer ring

222‧‧‧ Inner Ring

23‧‧‧second bearing

231‧‧‧ outer ring

232‧‧‧ Inner Ring

3‧‧‧ Stator

31‧‧‧ iron core

4‧‧‧Rotor

41‧‧‧Shell

411‧‧‧ bottom cover

411a‧‧‧Perforation

411b‧‧‧Second junction

411c‧‧‧First Assembly Department

411d‧‧‧ positioning slot

412‧‧‧Circle wall

42‧‧‧blade adapter plate

421‧‧‧Keyhole

422‧‧‧Apartment

423‧‧‧Second Assembly Department

5‧‧‧ Ceiling fan blades

R‧‧‧ accommodating space

F‧‧‧Fixed components

S‧‧‧Locking components

Claims (20)

A ceiling fan motor includes: a shaft center having a first shoulder portion and a second shoulder portion, the first shoulder portion and the second shoulder portion respectively facing the two ends of the shaft center, the shaft core is coupled with a stator; a bearing sleeve, the bearing sleeve accommodating a first bearing and a second bearing for supporting the shaft center, one end of the bearing sleeve has a ring lip, and the ring lip and the second shoulder portion are jointly clamped and positioned a second bearing; and a rotor having a housing and a blade adapter plate, the housing being coupled to the bearing sleeve, the blade adapter plate being coupled to the housing, and the blade adapter plate comprising a plurality of And a locking hole for combining the ceiling fan blade, the abutting portion and the first shoulder system jointly clamping and positioning the first bearing. The ceiling fan motor of claim 1, wherein the housing comprises a bottom cover, the blade adapter plate is coupled to the bottom cover away from a surface of the stator, the first shoulder facing the bottom cover And the first shoulder is formed between the bottom cover and the second shoulder. The ceiling fan motor of claim 2, wherein the shaft has an enlarged diameter portion, and the first shoulder portion and the second shoulder portion are respectively formed on two sides of the enlarged diameter portion. The ceiling fan motor of claim 2, wherein the first bearing and the second bearing respectively have an outer ring and an inner ring, the bearing sleeve being coupled to the first bearing and the second bearing The outer circumference of the ring is threaded through the inner ring of the first bearing and the second bearing. The ceiling fan motor of claim 4, wherein the bearing sleeve has an accommodating space therein, the first bearing and the second bearing are accommodated in the accommodating space, and the bearing sleeve has a connection a first opening and a second opening, wherein the first opening and the second opening are respectively formed at two ends of the bearing sleeve, and the axial center The first shoulder faces the first opening, and the second shoulder of the axis faces the second opening. The ceiling fan motor of claim 5, wherein a hole is formed in the center of the bottom cover, and the through hole is opposite to the first opening and the second opening of the bearing sleeve in an axial direction of the shaft. The ceiling fan motor of claim 6, wherein the perforation has an aperture larger than an outer diameter of the bearing sleeve, and the bearing sleeve protrudes outside the housing via the through hole. The ceiling fan motor of claim 6, wherein the abutting portion extends from the blade adapter plate toward the first opening to protrude into the first opening and position the first bearing, the ring A lip is disposed adjacent the one end of the bearing sleeve and extends radially from the bearing sleeve toward the shaft to position the second bearing. The ceiling fan motor of claim 4, wherein the first shoulder is positioned to the inner ring of the first bearing, and the second shoulder is positioned to the inner ring of the second bearing, the abutting portion is Positioning the outer ring of the first bearing to position the first bearing between the abutting portion and the first shoulder, the ring lip being positioned on the outer ring of the second bearing to A second bearing is clamped between the ring lip and the second shoulder. The ceiling fan motor of claim 4, wherein a fixing member is disposed between the abutting portion of the blade adapter plate and the first bearing, and the two sides of the fixing member respectively abut the first bearing and the Abutment. The ceiling fan motor of claim 2, wherein the bearing sleeve is provided with a first joint portion, the first joint portion is disposed at one end of the bearing sleeve adjacent to the first opening, and the bottom cover is provided with a second The joint portion is coupled to the first joint portion of the bearing sleeve in an opposing manner to couple the shell to the bearing sleeve. The ceiling fan motor of claim 2, wherein the bottom cover is provided with a first assembly portion, and the blade adapter plate is provided with a second assembly portion, and the second assembly portion is coupled to The first assembly of the bottom cover is coupled to each other to couple the blade adapter plate to the housing. The ceiling fan motor of claim 12, wherein the first assembly portion of the bottom cover is a plurality of fixing holes, and the second assembly portion of the blade adapter plate is a plurality of through holes, and the second assembly portion is formed. The plurality of through holes are respectively aligned with the plurality of fixing holes formed by the first assembly portion, and each of the through holes extends through the fixing member to be fixed to each of the fixing holes. The ceiling fan motor of claim 2, wherein the bottom cover of the housing defines a plurality of positioning slots, the positioning slots are arranged along a circumferential direction of the bottom cover, and the blade adapter plate is locked The holes are respectively located opposite to the positioning groove along one of the axial directions of the axis. The ceiling fan motor of claim 14, wherein the positioning groove is an arcuate groove formed along a circumferential direction of the bottom cover. The ceiling fan motor of claim 15, wherein the positioning groove is a through groove extending through the bottom cover. The ceiling fan motor of claim 15, wherein the positioning groove is a blind groove opening toward the blade adapter plate. The ceiling fan motor of claim 15, wherein the number of the positioning grooves is five, and the two ends of the positioning groove occupy an arc of more than 60° in the circumferential direction. The ceiling fan motor of claim 18, wherein the blade adapter plate has a keyhole for combining two, three, four or five ceiling fan blades. The ceiling fan motor according to any one of claims 1 to 19, wherein the inner ring of the first bearing and the second bearing respectively form a non-tight fit with the shaft center.