TWI713281B - Stator and fan and motor including the stator - Google Patents

Abstract

A stator and a fan and a motor including the stator are provided to overcome various issues caused by pulling and welding the enameled copper wire to the circuit board. The motor includes a base having a shaft-coupling portion, a circuit board mounted around the shaft-coupling portion, a stator having an insulation bobbin coupled with an iron core and a coil unit coupled with the insulation bobbin, and a rotor having a magnet radially facing the iron core. The stator further includes a plurality of bent pins electrically connected to the coil unit. Each of the plurality of bent pins has a first end connected to the insulation bobbin, as well as a second end welded to a face of the circuit board facing the insulation bobbin. The second end of each bent pin is within the space delimited by an inner periphery of the magnet.

Description

Fan, motor and its stator

The present invention relates to a fan and its components, in particular to a structure for electrically connecting the coil assembly of a fan, a motor and its stator.

Please refer to Figure 1, which is a conventional fan 8. The conventional fan 8 has a fan frame 81, a circuit board 82, a stator 83, and a rotor 84. The fan frame 81 has a shaft tube 811. The circuit board 82 and the stator 83 are located on the outer circumference of the shaft tube 811, and the stator 83 can drive the rotor 84 to rotate. The stator 83 has an iron core 831, an insulating sleeve 832 is combined with the iron core 831, a coil group 833 is wound and combined with the insulating sleeve 832, and a plurality of conductor pins 834 are fixed to the insulating sleeve 832 and electrically connected to the In the coil assembly 833, the conductor pins 834 penetrate the circuit board 82 and are soldered to the surface of the circuit board 82 facing away from the insulating sleeve 832 to be electrically connected with the circuit board 82. An embodiment similar to the conventional fan 8 has been disclosed in patent applications such as Republic of China Publication No. 200830671 and China Publication No. 107453556.

Because of the aforementioned conventional fan 8, the conductor pins 834 of the stator 83 need to penetrate the circuit board 82 and weld on the surface of the circuit board 82 away from the insulating sleeve 832, so the axial height of the overall fan 8 will be It is difficult to reduce the space required for installation and assembly.

Please refer to Figure 2, which is a conventional thin fan 9 having a fan frame 91, a circuit board 92, a stator 93 and a rotor 94, and the fan frame 91 has a shaft tube 911 , The circuit board 92 and the stator 93 are located on the outer circumference of the shaft tube 911, and the stator 93 can drive The rotor 94 rotates. Wherein, the stator 93 has an iron core 931, an insulating sleeve 932 is combined with the iron core 931, a coil assembly 933 is wound and joined to the insulating sleeve 932, and at least one enameled wire 934 is drawn out and welded to the circuit board 92 toward the insulation The surface of the sleeve 932 saves the installation and assembly space required by the aforementioned fan 8 (marked in Figure 1) under the circuit board 82 to facilitate the development of thinning. An embodiment similar to the conventional thin fan 9 has been disclosed in Chinese Patent Application No. 102996474A and No. 105281532A.

However, in the thin fan 9 with a low axial height, the stator 93 is wound with a very thin enameled wire 934 to form the coil assembly 933, so it is easy to accidentally cause the enameled wire 934 to drop paint during the wire drawing process. , Scratches, or even fractures, etc., so that it cannot be electrically connected to the circuit board 92 normally, which reduces the efficiency of the stator 93 for generating an alternating magnetic field, or even cannot generate an alternating magnetic field, so that the thin fan 9 cannot maintain normal operation. In addition, when pulling the enameled wire 934 to the circuit board 92, pay attention to the tension of the enameled wire 934. If it is too tight, there is a risk of breaking, and if it is too loose, there is a risk of being broken when the rotor 94 rotates. Therefore, welding assembly Its efficiency and quality are difficult to improve.

In view of this, the conventional fan does still have to be improved.

In order to solve the above problems, the object of the present invention is to provide a fan, a motor and a stator thereof. The stator has hard bent pins that can be welded to the surface of the circuit board facing the insulating sleeve, and there is no need to pull the enameled wire to the circuit board during assembly. Not only is it easier to assemble, it can also effectively reduce the chance of damage to the enameled wire without increasing the axial height of the fan or motor.

The second objective of the present invention is to provide a fan, a motor and a stator thereof, the bent pins of the stator may not affect the smoothness of the rotation of the rotor.

Another object of the present invention is to provide a fan, a motor and a stator thereof, the bent pins of which can be firmly combined with the insulating sleeve.

Another object of the present invention is to provide a fan, a motor and a stator thereof, which can avoid friction between the solder joints and the rotor, so that the rotor can maintain good rotation smoothness.

The directionality described in the full text of the present invention or its similar terms, such as "front", "rear", "left", "right", "up (top)", "down (bottom)", "inner", "outer" , "Side", etc., mainly refer to the directions of the attached drawings. The directional or similar terms are only used to help explain and understand the embodiments of the present invention, and are not used to limit the present invention.

The elements and components described in the full text of the present invention use the quantifiers "one" or "one" for convenience and to provide the general meaning of the scope of the present invention; the present invention should be interpreted as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.

The approximate terms such as "combination", "combination" or "assembly" mentioned in the full text of the present invention mainly include the types that can be separated without destroying the components after being connected, or the components can not be separated after being connected, which are common knowledge in the field Those can be selected based on the materials of the components to be connected or assembly requirements.

The present invention provides a motor stator for driving a rotor to rotate, comprising: an iron core; an insulating sleeve combined with the iron core; a coil assembly wound and combined with the insulating sleeve; and several bending pins, each The first end of the bent pin penetrates the insulating sleeve and is electrically connected to the coil assembly. When the iron core is radially opposite to a magnetic part of the rotor, the second end of each bent pin is located at the The second end of each bent pin is used for welding on the surface of a circuit board facing the insulating sleeve within the range of the inner diameter enclosed by the magnetic member.

The present invention also provides a motor, which includes: a base with a shaft connection part; a circuit board arranged on the outer circumference of the shaft connection part; a stator arranged on the outer circumference of the shaft connection part with an insulating sleeve combined with an iron Core, a coil group is wound and combined with the insulating sleeve, and a plurality of bent pins, the first end of each bent pin penetrates the insulating sleeve and is electrically connected to the coil group, and the second end is welded to the The direction of the circuit board The surface of the insulating sleeve; and a rotor rotatably connected to the shaft joint portion, the rotor has a magnetic member diametrically opposed to the iron core, and the second end of each of the bent pins is located around the magnetic member Within the range of the inner diameter formed.

The present invention also provides a fan having the above-mentioned motor, and the rotor has a rotating shaft rotatably connected to the shaft joint, the rotating shaft is connected to a hub, a plurality of fan blades are located on the outer periphery of the hub, and the magnetic member is arranged in the hub It is diametrically opposed to the iron core.

Accordingly, the fan, the motor and the stator of the present invention, by making the stator have a hard bent pin, and the bent pin is welded to the surface of the circuit board facing the insulating sleeve without increasing the fan or The axial height of the motor; when welding the stator and the circuit board, it is no longer necessary to pull the enameled wire to the circuit board, and the second end of the bent pin can be directly welded to the circuit board, and There is no need to adjust the tension of the enameled wire, so the welding can be completed quickly, and the probability of failure of the fan or motor due to the damage of the enameled wire can be effectively reduced.

In addition, the above-mentioned electrical connection method can also make the circuit board a single-sided wiring type, which not only helps reduce the manufacturing cost of the circuit board, but also helps reduce the axial height of the overall fan or motor. In addition, when the fan or motor with the stator is operating, the magnetic parts in the rotor will not magnetically attract the plurality of bent pins, so that good rotation smoothness can be maintained.

Wherein, the iron core has a plurality of pole portions, and the second end of each bent pin can be located between two adjacent pole portions without being shielded by the coil assembly in the axial direction. In this way, the welding operation can be performed more easily, which has the effect of improving the assembly efficiency.

Wherein, the iron core has a plurality of pole portions, the insulating sleeve has a central ring portion and a plurality of extension portions are connected to the outer periphery thereof, and the first end of each bent pin can be combined with the central ring portion. In this way, the bonding depth of each of the bent pins and the insulating sleeve can be larger, which has the effect of improving the bonding stability.

Wherein, the central ring portion of the insulating sleeve can be polygonal, and the first end of each bent pin can be aligned with the corner of the central ring portion. In this way, it can be ensured that the insulating sleeve covers the bent joints The part of the foot has sufficient thickness and strength, so that each of the bent pins can be more firmly combined with the insulating sleeve and is not easy to fall off or rotate, and has the effect of improving the stability of the combination.

Wherein, the central ring portion of the insulating sleeve has a plurality of axially penetrating through holes, and the first end of each bent pin is combined with the through holes and can be flush with the top surface of the central ring portion. In this way, the wire tension of the coil assembly can be kept neither too high nor too low, so as to reduce the chance of wire breakage.

Wherein, the central ring portion of the insulating sleeve has a plurality of axially penetrating through holes, and the first end of each bent pin is combined with the through hole and can protrude from the top surface of the central ring portion. In this way, under moderate winding tension, the bent pin can maintain slightly protruding from the top surface of the center ring without pressing back, or the bent pin can be protruded from the top of the center ring by fine-tuning The height of the surface makes the wiring tension of the coil assembly appropriate, which has the effect of simplifying the manufacturing process or effectively avoiding wire breakage.

Wherein, each of the bent pins may be L-shaped and have a vertical part and a horizontal part, the free end of the vertical part forms the first end, the free end of the horizontal part forms the second end, and each bent The vertical part of the pin can penetrate the insulating sleeve and be electrically connected to the coil assembly, and the horizontal portion of each bent pin can be aligned on the surface of the circuit board facing the insulating sleeve. In this way, each of the bent pins can be easily formed and combined with the insulating sleeve, and can be directly aligned to the position to be welded, which has the effects of improving assembly efficiency and welding efficiency.

Wherein, the horizontal portion of each bent pin may extend along the radial direction of the rotor. In this way, the second end of each bent pin can be located between the two adjacent pole portions which is relatively spacious and convenient for welding, which has the effect of improving welding efficiency.

Wherein, the iron core has a plurality of pole portions, each of the pole portions is connected with a pole shoe portion, the insulating sleeve has a central ring portion and a plurality of extension portions are connected to the outer periphery, and the plurality of extension portions are respectively aligned with the core A plurality of pole parts, the outer end of each extension part is connected to an end plate, the plurality of end plates of the insulating sleeve are respectively aligned with the plurality of pole shoe parts of the iron core, and the first ends of the plurality of bent pins can be Connect to the end plate. In this way, it has the effect of improving assembly efficiency.

Wherein, the surface of the end plate that is connected with the bent pin facing the circuit board may have a notch that penetrates in a radial direction, the bent pin is L-shaped and a part of the bent portion may be located in the notch . In this way, there is no need to increase the axial height of the overall motor in order to provide the space required for the plurality of bent pins, which has the effect of maintaining a low axial height.

Wherein, the iron core has a maximum radial range, and the second end of each bent pin can be located within the maximum radial range. In this way, the welding spot on the second end of each bent pin is less likely to extend under the rotor, thereby avoiding friction between the welding spot and the rotor, and having the effect of improving the smoothness of rotation of the rotor.

Wherein, each of the extension portions of the insulating sleeve has a radial length, and the multiple extension portions are counted from the point connecting the central ring portion, and form a radial range at two-thirds of the radial length. The second end of the bent pin may be located within the radial range. In this way, it can be ensured that the welding spot on the second end of each bent pin will not extend under the rotor, thereby avoiding friction between the welding spot and the rotor, and having the effect of improving the rotation smoothness of the rotor.

〔this invention〕

1: base

11: bottom plate

12: Shaft joint

121: Shaft tube

122: Shaft tube internal components

2: circuit board

2a: first surface

2b: second surface

21: Contact

3: stator

31: iron core

311: pole

312: Pole Boots

32: Insulation sleeve

321: Center Ring

321a: Top surface

322: Extension

323: end plate

324: Piercing

325: missing slot

33: coil group

34: Bend pin

34a: first end

34b: second end

341: Vertical

342: horizontal part

4: Rotor

41: shaft

42: Wheel hub

43: magnetic parts

44: fan blade

L: Radial length

C: Corner

D1: Inner diameter range

D2: Maximum radial range

D3: Radial range

[Traditional]

8: Fan

81: fan frame

811: Shaft tube

82: circuit board

83: stator

831: iron core

832: Insulation sleeve

833: Coil Group

834: Conductor pin

84: Rotor

9: Thin fan

91: fan frame

911: Shaft tube

92: circuit board

93: stator

931: iron core

932: Insulation sleeve

933: Coil Group

934: enameled wire

94: Rotor

[Figure 1] A structural diagram of a conventional fan.

[Figure 2] A structural diagram of a conventional thin fan.

[Figure 3] An exploded perspective view of the first embodiment of the present invention.

[Figure 4] A top view along the line A-A in Figure 3.

[Figure 5] A cross-sectional view of the integral motor along the line B-B in Figure 4.

[Figure 6] A cross-sectional view of the first embodiment of the present invention when the first end of the bent pin protrudes from the top surface of the insulating sleeve.

[Figure 7] A top view of the second embodiment of the present invention.

[Figure 8] A cross-sectional view of the second embodiment of the present invention.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: Please refer to Figure 3. It is the first embodiment of the motor of the present invention. It includes a base 1, a circuit board 2, a stator 3, and a rotor 4. The circuit board 2 and the stator 3 are arranged on the base 1. The rotor 4 can The stator 3 is driven to rotate.

Referring to FIGS. 3 and 5, the base 1 has a bottom plate 11, and a shaft connection portion 12 is connected to the bottom plate 11 and can be rotatably connected to the rotor 4. In this embodiment, the shaft connecting portion 12 may have a shaft tube 121 and a shaft tube internal assembly 122. The shaft tube 121 may be a metal or plastic tube body that is integrally formed or detachably coupled to the bottom plate 11. The shaft tube internal assembly 122 is located inside the shaft tube 121, and the shaft tube internal assembly 122 may include components such as bearings, positioning sleeves, wear plates or fasteners.

The circuit board 2 is arranged on the outer periphery of the shaft connection portion 12. In this embodiment, the circuit board 2 has a first surface 2a and a second surface 2b opposite to each other. The first surface 2a has a space for the stator 3 Several contacts 21 electrically connected. The second surface 2b of the circuit board 2 faces the bottom plate 11. The circuit board 2 can be directly or indirectly fixed to the bottom plate 11; in other embodiments, the circuit board 2 can also be optionally fixed to the shaft joint 12 . In addition, the circuit board 2 can be a type with bakelite or glass fiber as a substrate, or a flexible printed circuit (FPC), etc., and the present invention is not limited.

Please refer to Figures 4 and 5, the stator 3 is provided on the outer circumference of the shaft connection portion 12 to drive the rotor 4 to rotate. The stator 3 has an iron core 31 which can be formed by stacking several silicon steel sheets; an insulating sleeve 32 is combined with the iron core 31, and the insulating sleeve 32 can be divided into different parts and assembled together. It is installed and combined with the iron core 31, or the insulating sleeve 32 is covered and combined with the iron core 31 by integral injection molding. In detail, the iron core 31 has a plurality of pole portions 311 arranged annularly on the outer circumference of the shaft connecting portion 12, and the outer end of each pole portion 311 is connected with a pole shoe portion 312; the insulating sleeve 32 has a The central ring portion 321 can allow the rotor 4 to penetrate therethrough. A plurality of extension portions 322 are connected to the outer periphery of the central ring portion 321. The outer end of each extension portion 322 is connected to an end plate 323. Wherein, the extension portions 322 of the insulating sleeve 32 are respectively aligned with the plurality of pole portions 311 of the iron core 31, and the plurality of end plates 323 of the insulating sleeve 32 are respectively aligned with the plurality of pole shoes of the iron core 31部312.

The stator 3 has a plurality of extension portions 322 wound and joined to the insulating sleeve 32 with a coil assembly 33. The stator 3 further has a plurality of bent pins 34. The first end 34a and the second end 34b of each bent pin 34 are not axially opposed to form a bent shape. The first end of each bent pin 34 One end 34a is connected to the insulating sleeve 32, and the second end 34b is soldered to the surface of the circuit board 2 facing the insulating sleeve 32 (ie, the first surface 2a of the circuit board 2). For example, but not limitation, each of the bent pins 34 of this embodiment may be roughly L-shaped and have a vertical portion 341 and a horizontal portion 342. The free end of the vertical portion 341 forms the aforementioned first end 34a. The free end of the horizontal portion 342 forms the aforementioned second end 34b. In this way, the vertical portion 341 of each bent pin 34 can penetrate the insulating sleeve 32 and be electrically connected to the coil assembly 33, and the horizontal portion 342 of each bent pin 34 can be aligned with the circuit board 2 Above the first surface 2a, so as to weld the second end 34b to the circuit board 2.

Wherein, the insulating sleeve 32 may further be provided with a plurality of axially penetrating through holes 324 at any position for connecting the first end 34a of each bent pin 34, and the second end 34b of each bent pin 34 Preferably, the pair is located between the two adjacent pole portions 311 and is not shielded by the coil assembly 33 in the axial direction, so that the welding operation can be performed more easily. For example, but without limitation, the plurality of through holes 324 may be provided in the central ring portion 321 of the insulating sleeve 32 for the first end 34a of each bent pin 34 to be combined, and each bent pin The horizontal portion 342 of 34 can extend along the radial direction of the rotor 4, so that the second end 34b of each bent pin 34 can be located between two adjacent pole portions 311 to be relatively spacious and Convenient for welding. Wherein, each of the bent pins 34 is coupled to the central ring portion 321 of the insulating sleeve 32, and there is no need to avoid components (for example, it does not need to consider whether it will interfere with the core 31), so each of the bent pins 34 The bonding depth with the insulating sleeve 32 here can be greater, so that the bonding stability of each of the bent pins 34 and the insulating sleeve 32 can be improved.

Furthermore, in this embodiment, the central ring portion 321 of the insulating sleeve 32 can be polygonal, and the corner C of the polygon is approximately aligned with the midpoint between two adjacent pole portions 311, and each of the bends The first end 34a of the folded pin 34 is substantially aligned to the corner C of the central ring portion 321, so as to ensure that the part where the insulating sleeve 32 covers each of the folded pins 34 has sufficient thickness and strength to make Each of the bent pins 34 can be more firmly combined with the insulating sleeve 32 and is not easy to fall off or rotate.

In addition, the coil assembly 33 can be electrically connected to each bending pin 34 when the first end 34a of each bending pin 34 slightly protrudes from the top surface 321a of the central ring portion 321, and then each of the bending pins 34 The first end 34a of the bent pin 34 is pressed down so that the first end 34a of each bent pin 34 is flush with the top surface 321a of the central ring portion 321, so that the wiring tension of the coil assembly 33 will not be excessive. High and not too low; or under moderate winding tension, the first end 34a of each bent pin 34 can also maintain slightly protruding from the top surface 321a of the central ring portion 321 without being pressed back (Figure 6 As shown), or by finely adjusting the height of the bent pin 34 protruding from the top surface 321a of the central ring portion 321, the wiring tension of the coil assembly 33 can be made proper.

Please refer to Figures 3 and 5, the rotor 4 has a rotating shaft 41 rotatably connected to the shaft connecting portion 12, the rotating shaft 41 is connected to a hub 42, the hub 42 has a magnetic member 43 and the core 31 diameter To face each other, the whole rotor 4 is driven to rotate by the alternating magnetic field generated by the stator 3.

Please refer to Figures 4 and 5. It is worth noting that the magnetic member 43 of the rotor 4 can enclose an inner diameter range D1; the iron core 31 has a maximum radial range D2. In this embodiment, The maximum radial range D2 is formed by the outermost edges of the pole shoe portions 312. Each extension portion 322 of the insulating sleeve 32 has a radial length L. The multiple extension portions 322 start from the point connecting the central ring portion 321, and form another radial direction at two-thirds of the radial length L. Range D3. The second end 34b of each bent pin 34 should at least be located within the inner diameter range D1 to prevent the magnetic member 43 from magnetically attracting each bent pin 34 to affect the smooth rotation of the rotor 4. Preferably, the second end 34b of each bent pin 34 may be located within the maximum radial range D2, and more preferably within the radial range D3, to ensure that the second end 34b of each bent pin 34 The upper welding spot may not extend below the part of the rotor 4 near the bottom plate 11 to avoid friction between the welding spot and the rotor 4.

Please refer to Figures 3 and 5. According to the aforementioned structure, when assembling the motor of this embodiment, only the circuit board 2 and the stator 3 need to be placed on the outer circumference of the shaft joint 12, and the number of the stator 3 The second ends 34b of the bent pins 34 respectively align with the contact points 21 on the circuit board 2, that is, the second ends 34b of each bent pin 34 can be welded to the corresponding contact points 21, No wire pulling action is required, so that the procedure of electrically connecting the circuit board 2 and the stator 3 becomes fast and accurate.

Please refer to Figures 7 and 8, which is the second embodiment of the motor of the present invention. In this embodiment, the first end 34a of each bent pin 34 can be connected to the end plate 323 of the insulating sleeve 32. . The second end 34b of each bent pin 34 only needs to be within the inner diameter range D1 enclosed by the magnetic member 43. For example, it may be relatively spacious and convenient for welding. Or as shown in the drawings of this embodiment, the horizontal portion 342 of each bent pin 34 extends outward along the radial direction of the shaft connection portion 12 and is located below the outer edge of the stator 3. However, the space here is narrow, so the insulating sleeve 32 of this embodiment can be provided with a notch 325 on the surface of the end plate 323 facing the circuit board 2, and the notch 325 radially penetrates the inner part of the end plate 323. On the outer surface, the bending part of each bending pin 34 (near the connection point of the vertical part 341 and the horizontal part 342) in the L-shape can be partially located in the notch 325. In this way, there is no need to increase the axial height of the overall motor in order to provide the space required for the plurality of bent pins 34.

Also, please refer to Figure 3, the present invention also provides a fan with the foregoing practical In any motor of the embodiment, the rotor 4 further has several fan blades 44 on the outer circumference of the hub 42 to guide the air flow when the rotor 4 rotates. The present invention does not limit the shape of the plurality of fan blades 44, but emphasizes that the stator 3 in the fan has the above-mentioned structural features, so the shape of the rotor 4 of the fan will not be described in detail here.

In summary, in the fan, motor and stator of the present invention, the stator has a hard bent pin, and the bent pin is welded to the surface of the circuit board facing the insulating sleeve without increasing the The axial height of the fan or the motor; it is no longer necessary to pull the enameled wire to the circuit board when welding the stator and the circuit board, and the second end of the bent pin can be directly welded to the circuit board Without the need to adjust the tension of the enameled wire, the welding can be completed quickly, and the probability of failure of the fan or motor due to the damage of the enameled wire can be effectively reduced.

In addition, the above-mentioned electrical connection method can also make the circuit board a single-sided wiring type, which not only helps reduce the manufacturing cost of the circuit board, but also helps reduce the axial height of the overall fan or motor. In addition, when the fan or motor with the stator is operating, the magnetic parts in the rotor will not magnetically attract the plurality of bent pins, so that good rotation smoothness can be maintained.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art without departing from the spirit and scope of the present invention may make various changes and modifications relative to the above-mentioned embodiments. The technical scope of the invention is protected. Therefore, the scope of protection of the invention shall be subject to the scope of the attached patent application.

1: base

11: bottom plate

12: Shaft joint

121: Shaft tube

122: Shaft tube internal components

2: circuit board

2a: first surface

2b: second surface

21: Contact

3: stator

31: iron core

311: pole

312: Pole Boots

32: Insulation sleeve

321: Center Ring

321a: Top surface

322: Extension

323: end plate

324: Piercing

33: coil group

34: Bend pin

34a: first end

34b: second end

341: Vertical

342: horizontal part

4: Rotor

41: shaft

42: Wheel hub

43: magnetic parts

44: fan blade

L: Radial length

D1: Inner diameter range

D2: Maximum radial range

D3: Radial range

Claims (23)

A motor stator used to drive a rotor to rotate, comprising: an iron core; an insulating sleeve combined with the iron core; a coil set wound and combined with the insulating sleeve; and a plurality of bending pins, each of which is bent The first end of the pin penetrates the insulating sleeve and is electrically connected to the coil assembly. When the core is radially opposite to a magnetic piece of the rotor, the second end of each bent pin is located at the position of the magnetic piece. Within the range of the inner diameter formed by the circle, and the second end of each bent pin is used for welding on a surface of a circuit board facing the insulating sleeve. For example, the motor stator of claim 1, wherein the iron core has a plurality of pole portions, and the second end pair of each bent pin is located between two adjacent pole portions and is not axially affected by the coil assembly Obscured. For example, the motor stator of claim 1, wherein the iron core has a plurality of pole portions, the insulating sleeve has a center ring portion and a plurality of extension portions are connected to the outer circumference thereof, and the first end of each bent pin is connected to the center ring unit. For example, the motor stator of claim 3, wherein each of the bent pins is L-shaped and has a vertical portion and a horizontal portion, the free end of the vertical portion forms the first end, and the free end of the horizontal portion forms the first end At two ends, the vertical portion of each bent pin penetrates the insulating sleeve and is electrically connected to the coil assembly, and the horizontal portion of each bent pin is aligned on the surface of the circuit board facing the insulating sleeve. Such as the motor stator of claim 4, wherein the horizontal portion of each bent pin extends along the radial direction of the rotor. For example, the motor stator of claim 3, wherein the central ring portion of the insulating sleeve is polygonal, and the first end of each bent pin is aligned with the corner of the central ring portion. Such as the motor stator of claim 3, wherein the central ring portion of the insulating sleeve has A plurality of axially penetrating through holes, and the first end of each bent pin is combined with the through hole and is flush with the top surface of the central ring portion. For example, the motor stator of claim 3, wherein the central ring portion of the insulating sleeve has a plurality of axially penetrating through holes, and the first end of each bent pin is combined with the through hole and protrudes from the top surface of the central ring portion. For example, the motor stator of claim 1, wherein the iron core has a plurality of pole portions, each of the pole portions is connected with a pole shoe portion, the insulating sleeve has a central ring portion and a plurality of extension portions are connected to the outer periphery thereof, and the plurality of extension portions The parts are respectively aligned with the pole parts of the iron core, the outer end of each extension part is connected to an end plate, the end plates of the insulating sleeve are respectively aligned with the pole shoe parts of the iron core, and the plurality of bent The first end of the folding pin is connected to the end plate. For example, the motor stator of claim 9, wherein the surface of the end plate connected with the bent pin facing the circuit board has a slot penetrating in a radial direction, and the bent pin is L-shaped and has a bent portion Partially located in the groove. For example, the motor stator according to any one of claims 1 to 10, wherein the iron core has a maximum radial range, and the second end of each bent pin is located within the maximum radial range. For example, the motor stator of any one of claims 3 to 10, wherein each of the extension portions of the insulating sleeve has a radial length, and the plurality of extension portions are calculated from the point where the central ring portion is connected, and the radial length is Two thirds together constitute a radial range, and the second end of each bent pin is located in the radial range. A motor includes: a base with a shaft connection part; a circuit board arranged on the outer circumference of the shaft connection part; a stator arranged on the outer circumference of the shaft connection part with an insulating sleeve combined with an iron core and a coil The assembly is wound and combined with the insulating sleeve, a number of bent pins, the first end of each bent pin penetrates the insulating sleeve and The coil assembly is electrically connected, and the second end is welded to the surface of the circuit board facing the insulating sleeve; and a rotor is rotatably connected to the shaft connection portion, the rotor has a magnetic member diametrically opposed to the iron core, each The second end of the bent pin is located within the inner diameter range formed by the magnetic member. Such as the motor of claim 13, wherein the iron core has a plurality of pole portions, and the second end pair of each bent pin is located between two adjacent pole portions and is not shielded by the coil assembly in the axial direction . Such as the motor of claim 13, wherein the iron core has a plurality of pole portions, the insulating sleeve has a center ring portion and a plurality of extension portions are connected to the outer circumference thereof, and the first end of each bent pin is connected to the center ring portion . Such as the motor of claim 15, wherein the center ring portion of the insulating sleeve is polygonal, and the first end of each bent pin is aligned with the corner of the center ring portion. Such as the motor of claim 13, wherein each of the bent pins is L-shaped and has a vertical portion and a horizontal portion, the free end of the vertical portion forms the first end, and the free end of the horizontal portion forms the second end At the end, the vertical portion of each bent pin penetrates the insulating sleeve and is electrically connected to the coil assembly, and the horizontal portion of each bent pin is aligned on the surface of the circuit board facing the insulating sleeve. The motor of claim 17, wherein the horizontal portion of each bent pin extends along the radial direction of the rotor. For example, the motor of claim 13, wherein the iron core has a plurality of pole portions, each of the pole portions is connected with a pole shoe portion, the insulating sleeve has a central ring portion and a plurality of extension portions are connected to the outer periphery thereof, and the plurality of extension portions Do not align several pole parts of the iron core, the outer ends of each extension part are connected to one end plate, the several end plates of the insulating sleeve are respectively aligned with the several pole shoe parts of the iron core, and the several bend The first end of the pin is connected to the end plate. Such as the motor of claim 19, wherein the surface of the end plate connected with the bent pin facing the circuit board has a slot that penetrates in a radial direction, and the bent pin is L-shaped and the bent portion is Partially located in the groove. For example, the motor of any one of claims 13 to 20, wherein the iron core has a maximum radial range, and the second end of each bent pin is located within the maximum radial range. For example, the motor of any one of claims 15 to 20, wherein each of the extensions of the insulating sleeve has a radial length, and the plurality of extensions are calculated from the point where the central ring portion is connected, and are within three times of the radial length. The two parts together form a radial range, and the second end of each bent pin is located in the radial range. A fan having a motor as claimed in any one of claims 13 to 22, and the rotor has a rotating shaft rotatably connected to the shaft joint portion, the rotating shaft is connected to a hub, a plurality of fan blades are located on the outer periphery of the hub, and the magnetic member It is arranged in the hub and radially opposite to the iron core.

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