TWI595732B - Motor and fan - Google Patents

Description

Motor and fan

The present invention relates to a motor and a fan, and more particularly to a motor having a cushioning member at a base, and a fan provided with the motor.

Existing motors generally include a base, a stator, a rotor, and a circuit board. The stator is disposed on the base, and the stator includes an iron core, and the iron core is circumferentially wound with a coil. The rotor is rotatably coupled to the stator, the circuit board is coupled to the base, and the circuit board is electrically coupled to the coil to enable the coil to energize and drive the rotor to rotate relative to the stator. The rotor can also be provided with a plurality of blades to enable the existing motor to form a fan.

In order to enable the circuit board to be electrically connected to the coil, the stator is usually provided with a guiding pin, and the guiding leg is electrically connected to the coil and the circuit board respectively. However, it is known that the iron core is prone to vibration when the existing motor is in operation, and vibration generated by the iron core is transmitted to the circuit board via the lead pin. Since the circuit board directly contacts the base, the vibration generated by the iron core is transmitted to the base and transmitted to the outside of the existing motor, making the existing motor unsuitable for a system that is less resistant to product vibration. among.

In view of the above, there is a need to provide a motor and a fan that are further improved to solve the problem that the prior motor is susceptible to vibration.

One object of the present invention is to provide a motor and a fan, and a buffer member is disposed on the base of the motor to partition a circuit board from the partition of the base.

In order to achieve the foregoing object, the technical means used in the present invention include: A motor comprising: a stator, the stator comprises a core, the core is circumferentially wound with a coil; a rotor comprising a rotating shaft, the rotating shaft is rotatably coupled to the stator; a base, the base is coupled to the base The stator has a partition; a circuit board, the circuit board is disposed on one side of the partition, and the circuit board is electrically connected to the coil; and a buffering member, the buffering members are respectively abutted on both sides The spacer and the circuit board are such that the circuit board does not contact the base.

The stator is provided with a guiding pin, the guiding leg is electrically connected to the coil, and the guiding pin is electrically connected to the circuit board. Thereby, the circuit board and the coil of the stator can be electrically connected via the lead leg.

Wherein, the outer circumference of the iron core is provided with a winding sleeve, the coil is wound around the winding sleeve, and the guiding foot is disposed on the winding sleeve. Thereby, the guiding pin can be fixed to the winding sleeve, so that the circuit board and the coil of the stator can be electrically connected via the guiding pin.

The iron core and the circuit board are respectively located on two sides of the partition plate. Thereby, since the coil or the winding sleeve of the outer core of the iron core may have an electric current, the iron core is separated from the circuit board through the partition plate, and the circuit board can be provided with an insulation protection effect.

The stator is provided with a guiding pin, the guiding leg is electrically connected to the coil, and the spacer is provided with a consistent hole, the through hole penetrating through the two sides of the partition, and the guiding leg passes through the through hole Electrically connect the board. Thereby, the circuit board and the coil of the stator can be electrically connected via the lead leg.

The base further includes a ring wall, the ring wall is disposed on the partition plate and extends away from the stator, the ring wall and the partition plate surround an accommodating space, the buffer member includes an outer circumference, the outer circumference The edges are respectively connected to the two sides of the buffering member, and the outer peripheral edge abuts the annular wall toward an inner peripheral wall of the accommodating space. Thereby, the cushioning member can be firmly coupled to the base.

The buffering member is provided with a first positioning portion on the outer peripheral edge, and the annular wall is provided with a second positioning portion on the inner peripheral wall, and the first positioning portion and the second positioning portion form a latch. Thereby, the first positioning portion and the second positioning portion can prevent the buffer member from being displaced relative to the base.

The buffering member is provided with at least one convex portion toward one side of the circuit board, and the circuit board is provided with at least one notch corresponding to the at least one convex portion, and at least one convex portion extends into the at least one notch to Position the board so that the board does not touch the base. Thereby, the buffering member can position the circuit board to prevent displacement of the circuit board when it is vibrated to contact the ring wall of the base, and ensure that vibration is not transmitted to the base through the circuit board.

The number of the at least one protrusion and the at least one notch is an even number, and each of the protrusions protrudes into each of the notches, and one of the protrusions is opposite to the other protrusion in a radial direction of one of the rotors. Thereby, the buffering member is respectively provided with convex portions on the symmetric sides on the radial direction to respectively position the circuit board, so that the buffering member can surely position the circuit board.

Wherein, the buffer member is provided with a ring flange facing one side of the circuit board, and the ring flange abuts the outer periphery of the circuit board. Thereby, the buffering member can position the circuit board, and the ring flange can block the circuit board and the ring wall of the base in the radial direction to prevent displacement of the circuit board when it is vibrated to contact the ring wall, and ensure vibration. It is not transmitted to the base via the board.

The buffer member includes an outer peripheral edge, and the buffer member forms a shoulder at a position adjacent to the outer peripheral edge of the ring flange, and the shoulder portion carries the circuit board. Thereby, the shoulder portion can increase the contact area of the buffer member with the circuit board, thereby improving the effect of the buffer member absorbing the vibration energy of the circuit board.

The winding sleeve of the stator is further provided with a positioning member, and the spacer is provided with a positioning hole, and the positioning member extends into the positioning hole. Thereby, the positioning member can prevent displacement of the stator relative to the base, thereby effectively improving the service life of the motor.

There is further provided a cushion, the cushion is made of a shock absorbing material, and the cushion is disposed between the positioning member and the partition. Thereby, the cushion pad can fill the space between the positioning member and the partition plate to enhance the positioning effect of the positioning member; and the cushion pad can also block the positioning member and the partition plate, thereby effectively preventing the iron core from being generated. The vibration is transmitted to the base by the positioning member.

The buffering member is provided with an extending portion toward one side of the partition plate. The positioning hole is a through hole, and the extending portion extends into the positioning hole and is formed between the positioning member and the partition plate. Thereby, the extending portion can fill the space between the positioning member and the partition plate to enhance the positioning effect of the positioning member; and the extending portion can also block the positioning member and the partition plate, thereby effectively preventing the iron core The generated vibration is transmitted to the base by the positioning member.

The winding sleeve of the stator is further provided with a positioning hole, the spacer is provided with a positioning member, and the positioning member extends into the positioning hole. Thereby, the positioning member can prevent displacement of the stator relative to the base, thereby effectively improving the service life of the motor.

There is further provided a cushion, the cushion is made of a shock absorbing material, and the cushion is disposed between the positioning component and the winding sleeve. Thereby, the cushion pad can fill the space between the positioning component and the winding sleeve to improve the positioning effect of the positioning component; and the cushion pad can also block the positioning component and the winding sleeve, thereby effectively preventing the iron core The generated vibration is transmitted to the base by the positioning member.

Wherein, the positioning member is made of a shock absorbing material, or the positioning member is a cylinder body externally coated with a shock absorbing material. Thereby, even if the positioning member contacts the partition plate, the vibration generated by the iron core can be effectively prevented from being transmitted to the base by the positioning member.

Wherein, the buffering member is formed in a loop shape, thereby forming a gap between the circuit board and the partition plate to provide space required for heat dissipation of the electronic circuit component on the circuit board, and the heat dissipation effect of the circuit board can be improved.

Wherein, the circuit board and the partition maintain a distance in an axial direction of one of the rotors. Thereby, the cushioning member can block the transmission path of the vibration, and effectively prevent the vibration of the circuit board from being transmitted to the base.

Wherein, the buffer member is made of shock absorbing material. Thereby, the buffer member can absorb the vibration energy of the circuit board, and effectively prevent the vibration of the circuit board from being transmitted to the base.

Wherein one side of the partition forms an accommodating space, the circuit board and the buffering member They are respectively disposed in the accommodating space. Thereby, the partition can separate the accommodating space for accommodating the circuit board and the buffering member.

According to the foregoing structure, the motor and the fan of the embodiments of the present invention are provided with a buffering member in the accommodating space of the base to separate the circuit board from the partition plate so that the circuit board does not contact the base. The vibration of the circuit board is effectively prevented from being transmitted to the base, thereby ensuring that the vibration generated by the stator is not transmitted to the outside of the motor through the circuit board, and has the effect of reducing the overall vibration of the motor.

〔this invention〕

1‧‧‧stator

11‧‧‧ iron core

12‧‧‧ coil

13‧‧‧ Winding sleeve

131‧‧‧ lead pin

132‧‧‧ Positioning parts

14‧‧‧ shaft tube

141‧‧‧First shock absorber

142‧‧‧Second shock absorber

2‧‧‧Rotor

21‧‧‧ shaft

22‧‧‧ housing

23‧‧‧Permanent magnet set

3‧‧‧Base

31‧‧‧Baffle

311‧‧‧through holes

312‧‧‧Positioning holes

32‧‧‧Circle wall

321‧‧‧ inner wall

322‧‧‧Second Positioning Department

4‧‧‧ boards

41‧‧‧ gap

5‧‧‧ cushioning parts

51‧‧‧ outer periphery

511‧‧‧First Positioning Department

52‧‧‧ convex

53‧‧‧ring flange

54‧‧‧ shoulder

55‧‧‧Extension

6‧‧‧ leaves

7‧‧‧ cushion

G‧‧‧ gap

R‧‧‧ accommodating space

H‧‧‧ spacing

Fig. 1 is a cross-sectional view showing the structure of a motor according to a first embodiment of the present invention.

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

Fig. 3 is a cross-sectional view showing the structure of a motor according to a second embodiment of the present invention.

Fig. 4 is a schematic exploded view showing the structure of the motor of the second embodiment of the present invention.

Fig. 5 is a cross-sectional view showing the structure of a motor according to a third embodiment of the present invention.

Fig. 6 is a structural exploded view showing the motor of the fourth embodiment of the present invention.

Fig. 7 is a cross-sectional view showing the structure of a motor according to a fourth embodiment of the present invention.

Fig. 8 is a structural exploded view showing another embodiment of the motor of the fourth embodiment of the present invention.

Fig. 9 is a schematic exploded view showing the structure of the motor of the fifth embodiment of the present invention.

Fig. 10 is a cross-sectional view showing the structure of a motor according to a fifth embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIGS. 1 and 2, a motor according to an embodiment of the present invention includes a stator 1, a rotor 2, a base 3, a circuit board 4, and a buffer member 5. The rotor 2 is rotatable The base 3 is coupled to the stator 1 , and the base 3 is coupled to the stator 1 , and the circuit board 4 and the buffer member 5 are disposed on the base 3 .

The stator 1 includes an iron core 11 around which a coil 12 is wound. The iron core 11 may be composed of a stack of silicon steel sheets or integrally formed of a magnetic conductive material. The outer circumference of the iron core 11 may be provided with a winding sleeve 13 around which the coil 12 is wound. In this embodiment, the motor is an outer rotor motor, but the motor may also be an inner rotor motor. The stator 1 can also be provided with a shaft tube 14 through which the shaft tube 14 can pass. The iron core 11 is coupled to the shaft tube 14 via the winding sleeve 13, and a gap G can be formed between the inner circumferential surface of the iron core 11 and the outer circumferential surface of the shaft tube 14.

The rotor 2 includes a rotating shaft 21, a casing 22 and a permanent magnet group 23 rotatably coupled to the shaft tube 14 of the stator 1 to enable the rotor 2 to rotate relative to the stator 1. The shaft 21 is coupled to the housing 22. Generally, the shaft 21 is disposed at a central position of the housing 22. The permanent magnet group 23 is coupled to the housing 22, and the permanent magnet group 21 is disposed toward the core 11, so that an air gap can be formed between the permanent magnet group 23 and the core 11.

The stator 1 is disposed on the base 3, and the base 3 can be coupled to the outer circumference of the shaft tube 14 of the stator 1. In this embodiment, the base 3 has a partition 31, and one side of the partition 31 forms an accommodating space R. In this embodiment, the iron core 11 of the stator 1 can be formed on The other side of the partition plate 31 is such that the iron core 11 and the accommodating space R are respectively located at two sides of the partition plate 31. Thereby, since the coil 12 of the outer circumference of the iron core 11 is supplied with electric current, and in some embodiments of the present invention, the winding sleeve 13 may also have an electric current, and the iron core 11 is accommodated through the partition 31. The space R is spaced apart to provide an insulation protection effect to the components in the accommodation space R.

The circuit board 4 may be a printed circuit board or a flexible circuit board for providing electronic circuit components such as a control circuit, a drive circuit, a power conversion circuit, a protection element or a switching element of the motor. The circuit board 4 is electrically connected to the coil 12 of the stator 1. The board 4 and the buffer The device 5 is disposed in the accommodating space R of the base 3, and the two sides of the buffering member 5 respectively abut the partition plate 31 and the circuit board 4 to separate the circuit board 4 from the partition plate 31, so that the The circuit board 4 is not in contact with the base 3. In detail, the buffering member 5 can separate the circuit board 4 from the partition plate 31 such that the circuit board 4 and the partition plate 31 maintain a distance H in the axial direction of the rotor 2, and the cushioning member 5 is made of rubber. It is made of a shock absorbing material such as silicone rubber, so that the cushioning member 5 can block the transmission path of the vibration and absorb the vibration energy of the circuit board 4, thereby effectively preventing the vibration of the circuit board 4 from being transmitted to the base 3.

The winding sleeve 13 of the stator 1 can be provided with a guiding pin 131. The guiding pin 131 is electrically connected to the coil 12, and the partition 31 can be provided with a constant hole 311, and the through hole 311 penetrates the gap. Both sides of the board 31. The guiding pin 131 extends through the through hole 311 to extend into the receiving space R of the base 3 and electrically connect the circuit board 4 . Thereby, since the guiding pin 131 is fixed to the winding sleeve 13 , the circuit board 4 and the coil 12 of the stator 1 can be electrically connected via the guiding pin 131 .

With the above structure, when the motor of the embodiment of the present invention is actually used, the base 3 can be coupled to a predetermined position (for example, a system housing) to fix the position of the motor. The coil 12 of the stator 1 generates an induced magnetic field after being energized, so that the core 11 can magnetically interact with the permanent magnet group 23 of the rotor 2, thereby allowing the rotor 2 to rotate relative to the stator 1.

It is known that the iron core 11 of the stator 1 is susceptible to vibration during the operation of the motor of the embodiment. Since the stator 1 is connected to the circuit board 4 via the lead pin 131, the vibration generated by the iron core 11 will pass through The lead pin 131 is delivered to the circuit board 4. The buffer member 5 abuts the partition plate 31 and the circuit board 4 respectively, so that the circuit board 4 does not contact the base 3, and the buffering member 5 can absorb the vibration energy of the circuit board 4, so The cushioning member 5 will effectively prevent the vibration of the circuit board 4 from being transmitted to the base 3. Accordingly, the vibration generated by the stator 1 is not transmitted to the outside of the motor through the circuit board 4.

According to the foregoing technical concept, each of the motors of the embodiments of the present invention is enumerated in detail below. The characteristics of each item are explained one by one:

In the present embodiment, the cushioning member 5 may be formed in a loop shape. Since the buffer member 5 separates the circuit board 4 from the partition plate 31, by forming the buffer member 5 into a loop shape, a gap can be formed between the circuit board 4 and the partition plate 31 to provide the buffer member 5. The space required for heat dissipation of the electronic circuit components on the circuit board 4 effectively improves the heat dissipation effect of the circuit board 4.

The base 3 further includes a ring wall 32 disposed on the partition plate 31 and extending away from the stator 1 so that the ring wall 32 and the partition plate 31 can surround the accommodating space R. The buffering member 5 includes an outer peripheral edge 51 that is connected to both sides of the cushioning member 5, and the outer peripheral edge 51 abuts the annular wall 32 toward the inner peripheral wall 321 of the receiving space R. Thereby, the cushioning member 5 can be firmly coupled to the base 3. The buffering member 5 is further provided with a first positioning portion 511 on the outer peripheral edge 51. The annular wall 32 is provided with a second positioning portion 322, the first positioning portion 511 and the second positioning portion. The 322 forms a cassette to prevent displacement of the cushioning member 5 relative to the base 3.

In this embodiment, the buffering member 5 is provided with at least one convex portion 52 facing one side of the circuit board, and the circuit board 4 is provided with at least one notch 41 corresponding to the at least one convex portion 52, the at least one The convex portion 52 extends into the at least one notch 41. Thereby, the buffering member 5 can position the circuit board 4 so that the circuit board 4 does not contact the ring wall 32 of the base 3 to prevent displacement of the circuit board 4 when it is vibrated and contact the ring wall 32 to ensure vibration is not caused. It is transmitted to the base 3 via the circuit board 4.

Furthermore, the number of the at least one convex portion 52 and the at least one notch 41 may be an even number, and each of the convex portions 52 extends into each of the notches 41, and one of the convex portions 52 is attached to one of the rotors 2 in the radial direction. Opposite the other convex portion 52. Thereby, the buffering member 5 is respectively provided with convex portions 52 on both sides of the symmetry in the radial direction to position the circuit board 4, so that the buffering member 5 can securely position the circuit board 4.

In addition, please refer to the third and fourth figures, which are the horses of the second embodiment of the present invention. The difference from the previous embodiment is that the buffer member 5 is provided with a ring flange 53 facing one side of the circuit board 4, and the ring flange 53 can abut the outer periphery of the circuit board 4. Thereby, the buffering member 5 can position the circuit board 4, and the ring flange 53 can block the circuit board 4 and the ring wall 32 of the base 3 in the radial direction to prevent the circuit board 4 from being displaced when vibrating. Contacting the ring wall 32 ensures that vibration is not transmitted to the base 3 via the circuit board 4. The buffer member 5 can form a shoulder portion 54 at a position adjacent to the outer peripheral edge 51 of the ring flange 53. The shoulder portion 54 can be used to carry the circuit board 4 to increase the contact between the buffer member 5 and the circuit board 4. The area, in turn, enhances the effect of the cushioning member 5 absorbing the vibration energy of the circuit board 4.

Referring to Figures 1 and 3, in the present embodiment, the stator 1 is provided with the shaft tube 14. The partition 31 of the base 3 can be coupled to the outer circumference of the shaft tube 14 of the stator 1, so that the base 3 is coupled to the stator 1. The iron core 11 is coupled to the shaft tube 14 via the winding sleeve 13. In order to prevent the vibration generated by the iron core 11 from being transmitted to the base 3 via the shaft tube 14, the outer circumference of the shaft tube 14 may be provided with a first A shock absorbing member 141 is attached to the outer periphery of the first shock absorbing member 141. The first shock absorbing member 141 can be made of a less rigid material (for example, plastic), and the first shock absorbing member 141 can also be made of a shock absorbing material such as rubber or silicone. Thereby, by additionally providing the first shock absorbing member 141 between the shaft tube 14 and the partition plate 31, it is possible to effectively prevent the vibration generated by the iron core 11 from being transmitted to the base 3 via the shaft tube 14.

It is to be noted that since the iron core 11 is coupled to the shaft tube 14 via the bobbin 13, the gap G can be formed between the inner circumferential surface of the iron core 11 and the outer circumferential surface of the shaft tube 14 The amplitude of the vibration generated by the core 11 to the shaft tube 14 is reduced. On the other hand, a second shock absorbing member 142 may be disposed on the outer circumference of the shaft tube 14, and the winding sleeve 13 may be coupled to the outer circumference of the second shock absorbing member 142. The second shock absorbing member 142 can also be made of a less rigid material (for example, plastic), and the second shock absorbing member 142 can also be made of a shock absorbing material such as rubber or silicone. Thereby, by additionally providing the second shock absorbing member 142 between the shaft tube 14 and the winding sleeve 13, the vibration generated by the iron core 11 can be further reduced to be transmitted to the shaft tube 14. Amplitude.

Wherein, when the motor of each embodiment is to be applied to a fan, the outer circumference of the casing 22 of the rotor 2 may be provided with a plurality of blades 6. Each of the blades 6 may be integrally formed with the casing 22 or may be coupled to the outer periphery of the casing 22 by means of an injection coating or the like, and the invention is not limited thereto. The motor of each of the embodiments and the plurality of blades 6 may together constitute the fan, and each of the blades 6 and the rotor 2 serves as a fan of the fan, so that the rotor 2 can be driven by the blades 6 when rotating. To generate airflow.

Referring to Fig. 5, a motor according to a third embodiment of the present invention, the base 3 also has a partition 31, and one side of the partition 31 also forms an accommodating space R, which is in accordance with the foregoing embodiments. The difference is that the iron core 11 of the stator 1 can be formed on the same side of the partition plate 31 such that the iron core 11 and the accommodating space R are located on the same side of the partition plate 31. In other words, the present invention is not limited to the embodiment in which the core 31 is separated from the accommodating space R by the partition plate 31. In addition, in the embodiment, the base 3 can be disposed without the annular wall 32, and the buffering member 5 can be directly coupled to the partition 31.

The motor of the fourth embodiment of the present invention is further described with reference to the sixth embodiment. The winding sleeve 13 of the stator 1 is further provided with a positioning member 132. The positioning member 132 can be further provided. a locating hole 312 extending from the winding sleeve 13 toward the partition plate 31 of the base 3; the partitioning hole 31 may be provided with a positioning hole 312, the positioning hole 312 may be a through hole or a blind hole, and the positioning member 132 is extended The positioning hole 312 is inserted. Thereby, during the operation of the motor of the fourth embodiment, even if the vibration generated by the iron core 11 of the stator 1 is large (generally occurring during starting or when the motor has not completely stopped), the positioning member 132 is positioned. In the positioning hole 312, the positioning member 132 can prevent the stator 1 from being displaced relative to the base 3, thereby preventing the guiding pin 131 from contacting the partitioning plate 31 or even the guiding pin 131 to be bent and bent. , effectively improve the service life of the motor.

In some embodiments of the present invention, the positioning member 132 may be made of a shock absorbing material such as rubber or silicone; or the positioning member 132 may be externally coated with a shock absorbing material. The (plastic or metal) cylinder is such that even if the positioning member 132 contacts the partition 31, the vibration generated by the core 11 can be effectively prevented from being transmitted from the positioning member 132 to the base 3. On the other hand, in the present embodiment, a cushion pad 7 is further provided, and the cushion pad 7 is made of a shock absorbing material such as rubber or silicone rubber, and the cushion pad 7 can be disposed on the partition plate 31 to surround the positioning hole 312. The inner circumferential surface of the positioning member 132 may be sleeved on the inner circumferential surface of the positioning member 132 as shown in FIG. Therefore, after the positioning member 132 extends into the positioning hole 312, the cushion pad 7 can be formed between the positioning member 132 and the partition plate 31 to fill the space between the positioning member 132 and the partition plate 31. In order to improve the positioning effect of the positioning member 132, the cushioning pad 7 can also block the positioning member 132 and the partitioning plate 31, thereby effectively preventing the vibration generated by the iron core 11 from being transmitted to the base 3 by the positioning member 132.

In the fourth embodiment, the winding sleeve 13 is provided with a positioning member 132. The partitioning plate 31 can be provided with a positioning hole 312, and the positioning member 132 can be prevented from extending into the positioning hole 312. The stator 1 is displaced relative to the base 3. However, in some embodiments of the present invention, the winding sleeve 13 may be provided with a positioning hole, and the spacer 31 is provided with a positioning member, and the positioning member of the spacer 31 can also be inserted into the positioning member. The positioning hole of the winding sleeve 13 prevents the stator 1 from being displaced relative to the base 3.

Referring to Figures 9 and 10, a motor according to a fifth embodiment of the present invention, and the foregoing fourth embodiment, wherein the buffer member 5 is provided with an extending portion 55 toward one side of the partition plate 31, the extension The portion 55 is opposite to the positioning hole 312 in the axial direction of the rotor 2, and in the embodiment, the positioning hole 312 is a through hole, so that the extending portion 55 can extend into the positioning hole 312 and be formed on the positioning member. 132 is between the partition plate 31. Thereby, the extending portion 55 can also fill the space between the positioning member 132 and the partition plate 31 to enhance the positioning effect of the positioning member 132; and the extending portion 55 can also block the positioning member 132 and the partition plate. 31. Effectively preventing the vibration generated by the iron core 11 from being transmitted to the base 3 by the positioning member 132.

In summary, the motor and the fan of each embodiment of the present invention are utilized by the base 3 A buffering member 5 is disposed in the accommodating space R. The two sides of the buffering member 5 can respectively abut the partitioning plate 31 and the circuit board 4 to separate the circuit board 4 from the partitioning plate 31, so that the circuit board 4 does not The base 3 is in contact. Therefore, the cushioning member 5 can effectively prevent the vibration of the circuit board 4 from being transmitted to the base 3, thereby ensuring that the vibration generated by the stator 1 is not transmitted to the outside of the motor through the circuit board 4. Accordingly, the motor and the fan of the embodiments of the present invention do have the effect of reducing the overall vibration of the motor.

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‧‧‧stator

11‧‧‧ iron core

12‧‧‧ coil

13‧‧‧ Winding sleeve

131‧‧‧ lead pin

14‧‧‧ shaft tube

141‧‧‧First shock absorber

142‧‧‧Second shock absorber

2‧‧‧Rotor

21‧‧‧ shaft

22‧‧‧ housing

23‧‧‧Permanent magnet set

3‧‧‧Base

31‧‧‧Baffle

311‧‧‧through holes

32‧‧‧Circle wall

321‧‧‧ inner wall

4‧‧‧ boards

41‧‧‧ gap

5‧‧‧ cushioning parts

51‧‧‧ outer periphery

52‧‧‧ convex

6‧‧‧ leaves

G‧‧‧ gap

R‧‧‧ accommodating space

H‧‧‧ spacing

Claims (21)

A motor comprising: a stator, the stator comprises a core, the core is circumferentially wound with a coil; a rotor comprising a rotating shaft, the rotating shaft is rotatably coupled to the stator; a base, the base is coupled to the base The stator has a partition; a circuit board, the circuit board is disposed on one side of the partition, and the circuit board is electrically connected to the coil; and a buffering member, the buffering members are respectively abutted on both sides The spacer and the circuit board are such that the circuit board does not contact the base. The motor of claim 1, wherein the stator is provided with a guiding pin, the guiding leg is electrically connected to the coil, and the guiding pin is electrically connected to the circuit board. The motor of claim 2, wherein the outer circumference of the core is provided with a winding sleeve, the coil is wound around the winding sleeve, and the guiding leg is disposed on the winding sleeve. The motor of claim 1, wherein the core and the circuit board are respectively located on opposite sides of the partition. The motor of claim 4, wherein the stator is provided with a guiding pin, the guiding leg is electrically connected to the coil, and the baffle is provided with a consistent hole, the through hole penetrating the two sides of the baffle The guiding leg passes through the through hole to electrically connect the circuit board. The motor of claim 4, wherein the base further comprises a ring wall, the ring wall is disposed on the partition and extends away from the stator, and the ring wall and the partition surround the same In the space, the buffering member includes an outer peripheral edge respectively connected to the two sides of the buffering member, and the outer peripheral edge abuts the annular wall toward an inner peripheral wall of the receiving space. The motor of claim 6, wherein the cushioning member is provided with a first positioning portion on the outer circumference, and the annular wall is provided with a second positioning portion on the inner peripheral wall, the first positioning portion and the first positioning portion The two positioning portions form a cassette. The motor of claim 1, wherein the buffer member is provided with at least one convex portion toward one side of the circuit board, and the circuit board is provided with at least one notch corresponding to the at least one convex portion. At least one protrusion extends into the at least one notch to position the circuit board such that the circuit board does not contact the base. The motor of claim 8, wherein the at least one protrusion and the at least one notch are an even number, each of the protrusions extending into each of the notches, and one of the protrusions is attached to the rotor One of them is opposite to the other convex portion in the radial direction. The motor of claim 1, wherein the buffer member is provided with a ring flange facing one side of the circuit board, the ring flange abutting the outer periphery of the circuit board. The motor of claim 9, wherein the cushioning member comprises an outer peripheral edge, and the cushioning member forms a shoulder at a position adjacent to the outer peripheral edge of the ring flange, the shoulder portion carrying the circuit board. The motor of claim 3, wherein the winding sleeve of the stator is further provided with a positioning member, the spacer is provided with a positioning hole, and the positioning member extends into the positioning hole. The motor of claim 12, wherein a cushion is further provided, the cushion is made of a shock absorbing material, and the cushion is disposed between the positioning member and the partition. The motor of claim 12, wherein the buffer member is provided with an extending portion toward one side of the partition, the positioning hole is a through hole, and the extending portion extends into the positioning hole and is formed at the positioning Between the piece and the partition. The motor of claim 3, wherein the winding sleeve of the stator is further provided with a positioning hole, the spacer is provided with a positioning member, and the positioning member extends into the positioning hole. The motor of claim 15 , wherein a cushion is further provided, the cushion is made of a shock absorbing material, and the cushion is disposed between the positioning member and the winding sleeve. The motor of claim 12, wherein the positioning member is made of a shock absorbing material, or the positioning member is a cylinder coated with a shock absorbing material. The motor of any one of claims 1 to 16, wherein the cushioning member is formed in a loop shape. The motor of any one of claims 1 to 16, wherein the circuit board and the partition maintain a distance in an axial direction of one of the rotors. The motor of any one of claims 1 to 16, wherein the cushioning member is made of a shock absorbing material. The motor of any one of the preceding claims, wherein one side of the partition forms an accommodating space, and the circuit board and the buffer member are respectively disposed in the accommodating space.