TWI543496B - Motor stator - Google Patents

Description

Motor stator

The present invention relates to a motor stator, and more particularly to a motor stator having a dual circuit board.

Referring to FIG. 1 , a conventional motor stator 9 has a core 91 which can be wound with a coil, and a center of the core 91 can be bored with a shaft tube 92. The shaft tube 92 is hollow to accommodate components such as bearings and shafts. In addition, the motor stator 9 further includes a plurality of circuit boards 93. The plurality of circuit boards 93 include a first circuit board 931 and a second circuit board 932. The first circuit board 931 can be electrically connected to the circuit board 931. The coil of the core 91 is electrically connected to the first circuit board 931 and the electrical connection wires (for example, power lines or signal lines, etc.) outside the motor stator 9. An embodiment similar to the conventional motor stator 9 has been disclosed in the "Fan and its fan frame" patent case of the Republic of China Announcement No. I314433.

The first circuit board 931 and the second circuit board 932 of the conventional motor stator 9 are coupled to each other via a plurality of pins 94, which are respectively connected to the first circuit board 931 and the second circuit. The board 932 provides a fixing effect and forms a spacing between the first and second circuit boards 931, 932. In addition, the pins 94 are electrically connected to the first and second circuit boards 931 and 932, respectively. The voltage or current is allowed to conduct between the first and second circuit boards 931, 932. However, the cross-sectional area of the pin 94 is usually quite small, and it is not able to provide a stable fixing effect, which easily causes the bonding relationship between the first and second circuit boards 931 and 932 to be weak, and the overall structural strength of the motor stator 9 is not good. . In other words, since this pin 94 is usually more Fine, once the motor stator 9 collides, it may cause the pin 94 to break or the circuit board 93 to be broken, etc., which will indirectly or directly cause the motor with the motor stator 9 to have a higher failure rate and a shorter service life.

Moreover, the first circuit board 931 is electrically connected to the coil of the iron core 91. Therefore, the first circuit board 931 must be welded to the wires or electrical contacts connected to the iron core 91. However, after the first circuit board 931 is soldered to the iron core 91, since the second circuit board 932 and the first circuit board 931 are connected to each other by the pin 94, and the first and second The spacing between the circuit boards 931, 932 is relatively small, which makes the operation of the pin 94 to be soldered to the first circuit board 931 or the second circuit board 932 difficult. In other words, it is difficult for the prior art to form the pin 94 between the first and second circuit boards 931, 932 to support and fix the second circuit board 932 after the first circuit board 931 is coupled to the iron core 91. . Accordingly, the conventional motor stator 9 having a plurality of circuit boards 93 is generally formed by combining the first and second circuit boards 931 and 932 with the pins 94, and then performing the first circuit board 931 and The welding procedure between the cores 91. However, the first circuit board 931, the second circuit board 932, and the pin 94 form a complicated three-dimensional structure, so that the motor stator 94 is usually assembled by manual assembly, and even the first circuit board 931 must be manually used. Welding is performed to make assembly of the motor stator 9 difficult, which will seriously increase the production cost of the motor using the motor stator 9.

In summary, the conventional motor stator 9 has disadvantages such as "poor structural strength" and "difficulty in processing and assembly", and it is urgent to provide a further improved motor stator to improve the market of conventional motor stators having several circuit boards. value.

An object of the present invention is to provide a motor stator including a stator, a first circuit board and a second circuit board. The first circuit board can be combined with the stator base to provide a support base. A fixing member and an extending portion are respectively disposed on two sides in an axial direction, and the second circuit board can be coupled to the extending portion of the supporting base via a joint portion, and the fixing portion is fixed Passing through a through hole in the center of the first circuit board to be fixed to the stator base or the first circuit board, so that the first and second circuit boards can be respectively coupled to the stator base and formed in a fixed position, Improve the assembly convenience of the motor stator.

Another object of the present invention is to provide a motor stator through which the first circuit board and the support base are coupled, and the second circuit board is coupled and fixed by the support base, and the support base can provide a stable fixing effect. Improve the structural strength of the motor stator.

In order to achieve the foregoing object, the technical means used in the present invention include: A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion are fixed to the stator base or the first circuit board through the through hole of the first circuit board, the extending portion is combined with the joint portion of the second circuit board, and the center of the supporting base Opening a through hole, the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the support seat is provided with a clamping surface on one side of the fixing member, the fixing member Provided on the clamping surface and extending from the clamping surface toward the stator seat, the extension extending in the axial direction away from the stator seat.

The motor stator of the present invention, wherein the fixing member forms a buckle portion away from one end of the clamping surface, and the stator base defines a buckle groove, and the fixing member passes through the through hole of the first circuit board and The buckle is fastened and fixed to the buckle groove.

The motor stator as described above, wherein the support base is provided with a plurality of fixing members, each of the fixing members is arranged around the perforation, and the stator base is provided with a plurality of buckle grooves corresponding to the fixing members.

The motor stator of the present invention, wherein the fixing member forms a buckle portion away from one end of the clamping surface, and the first circuit board defines a buckle groove, and the fixing member passes through the first electricity The through hole of the road plate is fastened and fixed to the buckle groove via the buckle portion.

In the motor stator as described above, the support base is provided with a plurality of fixing members, each of the fixing members is arranged around the perforation, and the first circuit board is provided with a plurality of buckles corresponding to the fixing members.

The motor stator of the present invention, wherein the fixing member of the support base is provided with a flange, and the buckle portion is disposed on a surface of the fixing member away from the perforation in a radial direction perpendicular to the axial direction, and the convex portion The rim is disposed at a surface of the fixing member facing the perforation in the radial direction, and the flange extends from the fixing member toward the perforation in the radial direction.

In the motor stator of the present invention, the stator base includes an iron core, and the iron core is coupled to a first insulating sleeve and a second insulating sleeve on opposite sides of the axial direction, and the first circuit board is coupled to the motor stator. Second insulating sleeve.

The motor stator as described above, wherein the buckle groove is formed in the second insulating sleeve or the iron core.

A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion a through hole is formed in the center, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the first circuit board is connected to the through hole of the first circuit board a positioning slot for the fixing member of the support seat to pass through to position the first circuit board.

A motor stator includes: a stator seat having a uniform hole in the center; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole The through hole of the first circuit board is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support seat is in an axial direction The upper side is respectively provided with a fixing member and an extending portion, and the fixing member passes through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, and the extension portion is coupled to the second circuit board a coupling portion, a through hole is formed in the center of the support base, and the through hole is opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the extension portion of the support base is provided with a positioning component, the first The second circuit board is provided with a positioning slot communicating with the through hole of the second circuit board, the positioning slot is for the positioning member to penetrate to position the second circuit board.

A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion a through hole is formed in the center, and the through hole is opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the motor stator is disposed inside a motor, and the second circuit board defines a through hole The through hole of the second circuit board is opposite to the through hole in the axial direction, the through hole of the stator seat, the through hole of the first circuit board and the second circuit board, and the through hole of the support base An axis can be worn, and the axis passes through the first Vias extending to the circuit board protruding outside the motor.

A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the branch a through hole is formed in the center of the support, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the motor stator is disposed inside a motor, and the second circuit board is The stator base is coupled to one side of the support base, and the through hole of the stator base, the through hole of the first circuit board and the through hole of the support base can extend through an axis, and the axis is away from one end of the support base Pass through the through hole of the stator seat and protrude to the outside of the motor.

A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion a through hole is formed in the center, and the through hole is opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the motor stator is disposed inside a motor, and the second circuit board defines a through hole The through hole of the second circuit board is opposite to the through hole in the axial direction, the through hole of the stator seat, the through hole of the first circuit board and the second circuit board, and the through hole of the support base It is possible to wear an axis, the two ends of the axis Through hole via the through hole of the second circuit board and the stator seat projection extending to the outside of the motor.

The motor stator as described above, further comprising a pin inserted between the first and second circuit boards to electrically connect the first circuit board and the second circuit board, respectively.

〔this invention〕

1‧‧ ‧ Stator seat

1a‧‧‧through hole

11‧‧‧ iron core

12‧‧‧First insulating sleeve

13‧‧‧Second insulation sleeve

14‧‧‧ buckle groove

2‧‧‧ boards

21‧‧‧First board

21a‧‧‧through hole

211‧‧‧ positioning slot

212‧‧‧ buckle groove

22‧‧‧Second circuit board

22a‧‧‧through hole

221‧‧‧Combination Department

222‧‧‧ positioning slot

3‧‧‧ support

3a‧‧‧Perforation

31‧‧‧Fixed parts

311‧‧‧Snap Department

312‧‧‧Flange

32‧‧‧ clamping surface

33‧‧‧Extension

331‧‧‧ positioning parts

4‧‧‧ pin

S‧‧‧Locking components

T‧‧‧ shaft tube

S’‧‧‧ pin

R‧‧‧ reel

M‧‧‧ permanent magnet set

[study]

9‧‧‧Motor stator

91‧‧‧ iron core

92‧‧‧ shaft tube

93‧‧‧Circuit board

931‧‧‧First board

932‧‧‧second circuit board

94‧‧‧ pin

Fig. 1 is a cross-sectional view showing the structure of a conventional motor stator.

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 a schematic view showing the assembly of the first embodiment of the present invention.

Figure 5 is a cross-sectional view showing the structure of a second embodiment of the present invention.

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

Figure 7 is a cross-sectional view showing the structure of a fourth embodiment of the present invention.

Figure 8 is a cross-sectional view showing the structure of 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. 2 and 3, the motor stator according to the first embodiment of the present invention includes a certain sub-seat 1, a plurality of circuit boards 2, and a support base 3. The support base 3 is coupled to the stator base 1 , and each of the circuit boards 2 is coupled to the support base 3 or the stator base 1 .

The center of the stator base 1 is provided with a constant hole 1a for the passage of a shaft such as a motor shaft or a shaft tube. In this embodiment, the stator base 1 includes an iron core 11, a first insulating sleeve 12 and a second insulating sleeve 13. The iron core 11 may be formed by stacking silicon steel sheets, or the iron core 11 may be It is directly formed by a magnetic conductive material (for example, soft magnetic powder), and the invention is not limited thereto. The first core and the second insulating sleeve 12 are respectively combined on the two sides of the core 11 in an axial direction, and the first and second insulating sleeves 12 and 13 jointly cover the stator base 1 . When the iron core 11 is wound around the coil, the coil can be prevented from directly contacting the body of the iron core 11 to avoid the risk of short circuit between the coil and the iron core 1 (for example, the short circuit caused by the enamelled wire used for winding the wire) ). However, the iron core 11 may be coated with an insulating varnish on the outer circumference or an insulating structure may be formed on the outside by an injection molding method to replace the first insulating sleeve 12 and the second insulating sleeve 13, so the present invention does not limit.

In the embodiment, the plurality of circuit boards 2 include a first circuit board 21 and a second circuit board 22, and the first circuit board 21 and the second circuit board 22 respectively define a through hole 21a, 22a, and The through hole 21a of the first circuit board 21 and the through hole 22a of the second circuit board 22 are respectively opposed to the through hole 1a of the stator base 1 in the axial direction.

The first circuit board 21 is coupled to the stator base 1. In detail, the first circuit board 21 can be coupled to the stator base 1 by welding, locking, bonding or hot-melt bonding, and the invention is not limited thereto. Since the second insulating sleeve 13 is formed between the core 11 and the first circuit board 21, the first circuit board 21 can be coupled to the second insulating sleeve 13. The second circuit board 22 is provided with a joint portion 221 for coupling with the support base 3.

The center of the support base 3 defines a through hole 3a. The through hole 3a is opposite to the through holes 21a and 22a of the first and second circuit boards 21 and 22 and the through hole 1a of the stator base 1 in the axial direction. The support base 3 is provided with a fixing member 31 on one side of the axial direction for fixing to the stator base 1 or the first circuit board 21. In the embodiment, the fixing member 31 is fixed to the fixing base 31. The stator base 1. In detail, the support base 3 has a clamping surface 32 on one side in the axial direction, and the fixing member 31 can be disposed at a position of the clamping surface 32 adjacent to the through hole 3a, and the fixing member 31 is The clamping surface 32 extends toward the stator base 1 . The fixing member 31 can pass through the through hole 21a of the first circuit board 21 to be fixed to the stator base 1. In the embodiment, the fixing member 31 is formed at a side of the clamping surface 32 to form a locking portion 311, and the stator base 1 defines a fastening groove 14 so that the fixing member 31 passes through the first circuit board. The through hole 21 a of the 21 can be fastened and fixed to the buckle groove 14 via the fastening portion 311 . The second insulating sleeve 13 is formed between the iron core 11 and the first circuit board 21, so that the fastening groove 14 can be opened in the second insulating sleeve 13, so that the fixing member 31 is fastened and fixed to the first insulating sleeve 31. Two insulating sleeves 13.

An extension portion 33 is disposed on the other side of the support base 3 in the axial direction, and the extension portion 33 is coupled to the joint portion 221 of the second circuit board 22, and the extension portion 33 faces in the axial direction. It extends away from the direction of the stator base 1. In detail, the joint portion 221 can be a fixing hole, and the extending portion 33 is opposite to the joint portion 221 in the axial direction, so that a locking component S (for example, a screw) can penetrate the joint. The second portion 22 is locked to the extending portion 33; however, the connecting portion 221 may be connected to the locking member. Various conventional combinations of structures, adhesive structures, hot melt structures, or welded structures are not limited in the present invention.

With the above structure, please refer to FIG. 4, which is a schematic view showing the assembly of the motor stator according to the first embodiment of the present invention. When the motor stator is actually processed and assembled, the first circuit board 21 can be coupled to the stator base 1 in advance. . Then, the second circuit board 22 can be coupled to the extending portion 33 of the support base 3 via the joint portion 221, and the fixing member 31 of the support base 3 can pass through the through hole 21a of the first circuit board 21 to fix In the stator base 1, the first circuit board 21 is formed between the stator base 1 and the clamping surface 32 of the support base 3. Wherein, the clamping surface 32 can abut the first circuit board 21 to provide a clamping and fixing effect; however, in the embodiment, since the first circuit board 21 has been coupled to the stator base 1, the clamping A gap can be formed between the face 32 and the first circuit board 21. Since the second circuit board 22 is coupled to the extension portion 33, the first and second circuit boards 21 and 22 are respectively formed on two sides of the support base 3, and the first and second circuit boards 21 can be made. 22 forms a spacing in the axial direction. Since the through hole 1a of the stator base 1, the through holes 21a, 22a of the first and second circuit boards 21, 22 and the through holes 3a of the support base 3 are opposite to each other in the axial direction, a shaft tube T can be worn separately. The through holes 21a of the stator base 1, the through holes 21a and 22a of the first and second circuit boards 21 and 22, and the through holes 3a of the support base 3 are formed to join the stator base 1.

Therefore, after the motor stator of the first embodiment of the present invention is assembled, the first and second circuit boards 21 and 22 can be respectively coupled to the stator base 1 , wherein the second circuit board 22 is coupled to the support. The extension 33 of the seat 3 is indirectly coupled to the stator base 1 via the support base 3. Since the support base 3 can form a space between the first and second circuit boards 21, 22, the relative positions of the first and second circuit boards 21, 22 are fixed. Therefore, by disposing the pin 4 on the first or second circuit boards 21 and 22 in advance, when the support base 3 is fixed to the stator base 1, the pin 4 and the first pin are respectively The second circuit boards 21, 22 form an electrical connection. Accordingly, the second circuit board 932 of the conventional motor stator 9 is coupled to the pin 94 for bonding. The first circuit board 931 causes the first circuit board 931 to be coupled to the iron core 91, and the pin 94 is formed between the first and second circuit boards 931 and 932 to support and fix the first circuit board 931. The second circuit board 932 can be assembled and assembled. The motor stator of the first embodiment of the present invention can be used to fix the second circuit board 22 by using the support base 3, so that the first and second circuit boards 21 and 22 are respectively combined. The stator base 1 is formed in a fixed position, so that the pin 4 does not need to provide a joint fixing function between the first and second circuit boards 21 and 22, and the pin 4 is disposed in the first or second beforehand. The pins 4 of the circuit boards 21 and 22 enable the pins 4 to be electrically connected to the first and second circuit boards 21 and 22, respectively, during assembly, and have the effect of improving the assembly convenience of the motor stator.

In the motor stator of the first embodiment of the present invention, the pin 4 is only electrically connected to the first and second circuit boards 21 and 22, and the pin 4 can be flexibly transmitted through a wire or the like without providing a joint fixing effect. The replacement of the conductive material is easily considered by those skilled in the art.

Furthermore, the conventional motor stator 9 provides a fixing effect by connecting the pin 94 to the first circuit board 931 and the second circuit board 932, respectively, and the structural strength is caused by the fact that the pin 94 cannot provide a stable fixing effect. Not good. The motor stator of the first embodiment of the present invention can be coupled to the first circuit board 21 through the stator base 1 to limit the first circuit board 21 to the clamping of the stator base 1 and the support base 3 by the support base 3. Between the faces 32, and the second circuit board 22 is fixedly fixed by the support base 3, since the support base 3 can provide a stable fixing effect, it has the effect of improving the structural strength of the motor stator.

According to the motor stator of the first embodiment of the present invention, among the plurality of circuit boards 2, a sensing element such as a Hall sensor or an encoder used in a conventional motor may be disposed in the first circuit. The board 21; oppositely, a component such as a power conversion circuit or a power supply terminal may be disposed on the second circuit board 22. Since the second circuit board 22 is affixed to the stator base via the support base 3, it is easily affected by process tolerances or assembly procedures. The position of the first circuit board 21 is relatively combined with the stator base 1 by welding or the like, so that the positional accuracy is high. Accordingly, by disposing the sensing element on the first circuit board 21 by the above configuration, the sensing element can be accurately positioned at a predetermined position, so that the operation of sensing the motor rotation speed and the like is more accurate. On the other hand, since the second circuit board 22 is closer to the outside of the motor circuit than the first circuit board 21, the second circuit board 22 has a better heat dissipation effect, and the power conversion circuit or power supply is provided. The provision of a member such as a terminal to the second circuit board 22 simplifies the motor wiring while ensuring that the thermal energy generated when the motor stator is powered can be effectively dissipated.

With reference to the second and third figures, the support base 3 is preferably provided with a plurality of fixing members 31, and the fixing members 31 can be arranged around the through holes 3a, and the stator base 1 is provided with the number of the fixing members. 31 corresponds to the buckle groove 14 to improve the bonding strength between the support base 3 and the stator base 1.

On the other hand, in the embodiment, the fixing member 31 of the support base 3 can be provided with a flange 312, wherein the locking portion 311 is disposed in a radial direction of the fixing member 31 in one of the vertical directions. The 312 is disposed away from the surface of the through hole 3a, and the flange 312 is disposed on the surface of the fixing member 31 in the radial direction toward the through hole 3a, and the flange 312 is oriented by the fixing member 31 in the radial direction. The perforations 3a extend. Thereby, when the shaft tube T passes through the through hole 3a of the support base 3, since the portion of the through hole 3a at the flange 312 is reduced in diameter, the shaft tube T will press against the flange 312 to The fixing member 31 is pressed outward in the radial direction. When the fixing member 31 is pressed, the coupling relationship between the locking portion 311 and the buckle groove 14 of the stator base 1 is further tight, and the bonding strength between the supporting base 3 and the stator base 1 can be further improved.

In addition, in order to ensure that the first circuit board 21 and the second circuit board 22 are accurately formed at predetermined positions, the pins 4 can be electrically connected to the first and second circuit boards 21 and 22, respectively. The first circuit board 21 may be provided with a positioning slot 211 communicating with the through hole 21a. The positioning slot 211 is for the fixing member 31 of the support base 3 to pass through to locate the first electric circuit. The positioning portion 331 of the supporting portion 3 may be provided with a positioning member 331. The second circuit board 22 may also be provided with a positioning slot 222 communicating with the through hole 22b. The positioning slot 222 The positioning member 331 is inserted to position the second circuit board 22. Accordingly, the positioning holes 211 and 222 are formed in the first and second circuit boards 21 and 22, and the first circuit board 21 and the second circuit board 22 can be positioned at predetermined positions to ensure the support base 3 When fixed to the stator base 1, the pins 4 can be electrically connected to the first and second circuit boards 21 and 22, respectively.

It is to be noted that when the fastening portion 311 of the fixing member 31 of the support base 3 is fastened to the buckle groove 14, the weight of the support base 3 and the second circuit board 22 will be supported by the buckle groove 14. In the first embodiment, the buckle groove 14 is opened in the second insulating sleeve 13 , and the second insulating sleeve 13 is usually made of a plastic material, so if the weight of the support base 3 is heavy or the support base 3 When the second circuit board 22 is combined with other components, the number, position and size of the buckle groove 14 must be carefully designed to support the support base 3. Referring to FIG. 5, a motor stator according to a second embodiment of the present invention is different from the first embodiment in that the buckle groove 14 of the stator base 1 is opened on the iron core 11 due to the iron. The core 11 is made of a metal material, so that the buckle groove 14 formed in the core 11 has better structural strength, and the buckle groove 14 can be opened in the second insulating sleeve 13 compared with the first embodiment. The shape of the buckle groove 14 is more flexible.

In the second embodiment, the second insulating sleeve 13 can be provided with a pin S'. The pin S' can be electrically connected to the coil disposed around the stator block 1, and the first circuit board 21 can be The pins S' in the second insulating sleeve 13 are welded to each other to fix the first circuit board 21 to the stator base 1. Similarly, a pin S' may be disposed in the extending portion 33 of the support base 3. The second circuit board 22 may be soldered to the lead S' in the extending portion 33 to make the second circuit board 22 Forming and fixing to the extension 33 is understood by those skilled in the art.

Referring to FIG. 6, a motor stator according to a third embodiment of the present invention is different from the foregoing first embodiment in that, in the embodiment, the fixing member 31 is fixed to the fixing member 31. The first circuit board 21. In detail, the first circuit board 21 can be provided with a buckle slot 212. The buckle slot 212 can be disposed adjacent to the through hole 21a. Therefore, the fixing member 31 can pass through the through hole 21a of the first circuit board 21 to The buckle portion 311 is fastened and fixed to the buckle groove 212 . Accordingly, the fixing member 31 can be fixed to the stator base 1 or the first circuit board 21, and the invention is not limited thereto.

Referring to FIG. 7, a motor stator according to a fourth embodiment of the present invention is different from the foregoing first, second and third embodiments in that, in the embodiment, the motor stator is one inside. The motor stator of the rotor motor. In detail, the through hole 1a of the stator base 1 is provided with a rotating shaft R, and the rotating shaft R is rotatably coupled to the through hole 1a of the stator base 1, and the outer circumference of the rotating shaft R can be combined. A permanent magnet group M, an air gap is formed between the permanent magnet group M and the core 11 of the stator base 1. The first circuit board 21 can also be coupled to the second insulating sleeve 13 of the stator base 1 , and the second insulating sleeve 13 also defines a fastening slot 14 , so that the fixing component 31 of the supporting base 3 passes through the first The through hole 21a of the circuit board 21 can also be fastened and fixed to the buckle groove 14 via the fastening portion 311. In addition, the second circuit board 22 can also be coupled to the extension portion 33 of the support base 3 such that the first and second circuit boards 21, 22 form a spacing in the axial direction, and the first and second The boards 21 and 22 can also be electrically connected to each other through a pin 4. Accordingly, the motor stator of the present invention can be used for an outer rotor motor or an inner rotor motor, and the invention is not limited thereto.

The motor stator can be disposed inside a motor. It should be noted that in the embodiment, the second circuit board 22 is continuous without the through hole 22a described in the foregoing embodiment, so that the second circuit board 22 is coupled to one side of the support base 3 by the stator base 1 for closing the motor stator. According to this, one end of the rotating shaft R close to the supporting base 3 will be enclosed inside the motor stator, but the other end of the rotating shaft R away from the supporting base 3 can still pass through the through hole 1a of the stator base 1 and protrude. To the outside of the motor for combining elements that are driven by the rotating shaft R (for example, blades of a fan).

Referring to FIG. 8, a motor stator according to a fifth embodiment of the present invention, the horse The stator can also be disposed inside a motor, which is different from the foregoing fourth embodiment in that the second circuit board 22 defines a through hole 22a for a shaft center R to pass through. Therefore, one end of the rotating shaft R close to the supporting base 3 can protrude to the outside of the motor through the through hole 22a of the second circuit board 22 for combining the components that are driven by the rotating shaft R.

Therefore, when the motor stator of each embodiment of the present invention is disposed inside a motor, the second circuit board 22 can open a through hole 22a for a shaft center R to pass through, so that the shaft center R can pass through the second The through hole 22a of the circuit board 22 protrudes to the outside of the motor; or the second circuit board 22 can also be continuous without opening the through hole 22a, and the axis R can still pass through the stator base 1 The hole 1a is projected to the outside of the motor. When the second circuit board 22 is provided with the through hole 22a, the two ends of the axis R can be respectively protruded through the through hole 22a of the second circuit board 22 and the through hole 1a of the stator base 1 to The outside of the motor, for the purpose of combining the elements on the two sides of the motor, which are driven by the rotating shaft R, can be easily considered by those skilled in the art to which the present invention pertains.

According to the foregoing structure, the main features of the motor stators of the first, second, third and fourth embodiments of the present invention are as follows:

The first circuit board 21 and the second circuit board 22 are combined with the stator base 1 and disposed through a support base 3. The support base 3 is in an axial direction. A fixing member 31 and an extending portion 33 are respectively disposed on the two sides of the supporting portion. The second circuit board 22 can be coupled to the extending portion 33 of the supporting base 3 via a joint portion 221, and the fixing member 31 passes through the first portion. a through hole 21a in the center of a circuit board 21 is fixed to the stator base 1 so that the first and second circuit boards 21, 22 can be respectively coupled to the stator base 1 and formed in a fixed position to lift the motor stator. The convenience of assembly convenience.

In addition, the motor stator of the first and second embodiments of the present invention can be coupled to the first circuit board 21 and the support base 3 through the stator base 1 and the second circuit board 22 can be combined and fixed by the support base 3, the support Seat 3 can provide a stable fixing effect to achieve lifting motor The effect of the structural strength of the child.

In summary, the motor stator of the present invention can achieve many functions such as improving the assembly convenience of the motor stator having several circuit boards and improving the structural strength thereof.

While the present invention has been disclosed in the above embodiments, it is not intended to limit the scope of the present invention. The scope of protection of the invention is therefore defined by the scope of the appended claims.

1‧‧ ‧ Stator seat

1a‧‧‧through hole

11‧‧‧ iron core

12‧‧‧First insulating sleeve

13‧‧‧Second insulation sleeve

14‧‧‧ buckle groove

2‧‧‧ boards

21‧‧‧First board

21a‧‧‧through hole

211‧‧‧ positioning slot

22‧‧‧Second circuit board

22a‧‧‧through hole

221‧‧‧Combination Department

222‧‧‧ positioning slot

3‧‧‧ support

3a‧‧‧Perforation

31‧‧‧Fixed parts

311‧‧‧Snap Department

312‧‧‧Flange

32‧‧‧ clamping surface

33‧‧‧Extension

331‧‧‧ positioning parts

4‧‧‧ pin

Claims (13)

A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion a through hole is formed in the center, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the support seat is provided with a clamping surface on one side of the fixing member, the fixing The piece is disposed on the clamping surface and extends from the clamping surface toward the stator seat, and the extension extends in the axial direction away from the stator seat. The motor stator of claim 1, wherein the fixing member forms a buckle portion away from one end of the clamping surface, and the stator base defines a buckle groove, and the fixing member passes through the first portion. A through hole of a circuit board is fastened and fixed to the buckle groove via the buckle portion. The motor stator of claim 1, wherein the fixing member forms a buckle portion away from one end of the clamping surface, and the first circuit board defines a buckle groove, and the fixing member passes through The through hole of the first circuit board is fastened and fixed to the buckle groove via the buckle portion. The motor stator of claim 2, wherein the support base is provided with a plurality of fixing members, each of the fixing members is arranged around the perforation, and the stator seat or The first circuit board is provided with a number of buckles corresponding to the fixing member. The motor stator according to claim 2, wherein the fixing member of the supporting seat is provided with a flange, and the locking portion is disposed in a radial direction of the fixing member in one of the vertical directions The flange is disposed away from the surface of the perforation in the radial direction, and the flange extends from the fixing member toward the perforation in the radial direction. The motor stator of claim 2, wherein the stator base comprises an iron core, and the iron core is combined with a first insulating sleeve and a second insulating sleeve on opposite sides of the axial direction, respectively. The first circuit board is coupled to the second insulating sleeve, and the buckle groove is formed in the second insulating sleeve. The motor stator of claim 2, wherein the stator base comprises an iron core, and the iron core is combined with a first insulating sleeve and a second insulating sleeve on opposite sides of the axial direction, respectively. A circuit board is coupled to the second insulating sleeve, and the buckle groove is formed in the iron core. A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion a through hole is formed in the center, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; The first circuit board is provided with a positioning slot communicating with the through hole of the first circuit board, and the positioning slot is for the fixing member of the support base to pass through to position the first circuit board. A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion A through hole is formed in the center, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the extending portion of the support base is provided with a positioning component, and the second circuit board is provided with A positioning slot is formed in the through hole of the second circuit board, and the positioning slot is configured for the positioning member to penetrate to position the second circuit board. A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat Or the first circuit board, the extension portion is coupled to the joint portion of the second circuit board, and a through hole is formed in the center of the support base, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction. Wherein the motor stator is disposed inside a motor, the second circuit board defines a through hole, and the through hole of the second circuit board is opposite to the through hole in the axial direction, and the stator seat is continuous The through hole of the hole, the first circuit board and the second circuit board and the through hole of the support base can extend through an axis, and the axis protrudes to the outside of the motor through the through hole of the second circuit board. A motor stator includes: a stator seat having a constant hole in a center thereof; a first circuit board, the first circuit board is coupled to the stator seat, and the first circuit board defines a through hole, the first circuit board a through hole is opposite to the through hole in the axial direction; a second circuit board, the second circuit board is provided with a joint portion; and a support seat, the support base is respectively disposed on two sides in an axial direction a fixing member and an extending portion passing through the through hole of the first circuit board to be fixed to the stator seat or the first circuit board, the extending portion being combined with the joint portion of the second circuit board, the supporting portion a through hole is formed in the center, and the through hole is respectively opposite to the through hole of the first circuit board and the through hole in the axial direction; wherein the motor stator is disposed inside a motor, and the second circuit board is configured by the stator The socket is coupled to one side of the support base, the through hole of the stator base, the through hole of the first circuit board and the through hole of the support base are configured to extend through an axis, and the shaft center passes through one end of the support base a through hole of the stator seat and protruding outside the motor . A motor stator includes: a stator seat having a constant hole in the center of the stator seat; a first circuit board, the first circuit board is coupled to the stator base, the first circuit board defines a through hole, and the through hole of the first circuit board is opposite to the through hole in the axial direction; a circuit board, the second circuit board is provided with a joint portion; and a support base, the support base is respectively provided with a fixing member and an extending portion on two sides in an axial direction, the fixing member passes through the first circuit board The through hole is fixed to the stator base or the first circuit board, and the extension portion is combined with the joint portion of the second circuit board, a through hole is formed in the center of the support base, and the through hole is respectively associated with the first circuit in the axial direction a through hole of the plate and the opposite hole of the through hole; wherein the motor stator is disposed inside a motor, the second circuit board defines a through hole, and the through hole of the second circuit board is along the axial direction The hole is opposite to the hole, the through hole of the first circuit board and the second circuit board, and the through hole of the support base can be inserted into an axis, and the two ends of the axis respectively pass through the first hole a through hole of the two circuit board and a through hole of the stator seat protrude to the motor Section. A motor stator according to any one of claims 1 to 12, further comprising a pin electrically connected to the first circuit board and the second circuit board, respectively.