TW202107799A - 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

Fans, motors and their stators

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. Wherein, 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 to 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.

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

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 to rotate. 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) below the circuit board 82, thereby facilitating the development of thinning. An embodiment similar to the conventional thin fan 9 has been disclosed in China Publication No. 102996474A and No. 105281532A patent applications.

However, in the thin fan 9 with a low axial height, the stator 93 is wound with an enameled wire 934 with a very fine wire diameter 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 breakage, etc., so that it cannot be electrically connected to the circuit board 92 normally, which reduces the efficiency of the alternating magnetic field generated by the stator 93, or even cannot generate the 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 twisted when the rotor 94 rotates. Therefore, welding assembly Its efficiency and quality are also difficult to improve.

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

In order to solve the above-mentioned 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 damaging 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, and the terms of directionality or similar terms are only used to assist in the description and understanding of the embodiments of the present invention, and are not intended 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; in the present invention, it should be construed as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.

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 cannot 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 group wound and combined with the insulating sleeve; and a plurality of bending pins, electric The first end of each bent pin is connected to the insulating sleeve, and 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 magnetic The second end of each bent pin is used for welding on the surface of a circuit board facing the insulating sleeve.

The present invention also provides a motor, including: 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, several bent pins are electrically connected to the coil group, the first end of each bent pin is connected to the insulating sleeve, and the second end is welded to the circuit board The surface facing 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 bent pin is located at the magnetic member Within the range of the inner diameter formed by the circle.

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, motor and 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 carried out 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 circumference thereof, and the first end of each bent pin can be connected to 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 stability of the bonding.

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 part where the insulating sleeve covers each of the bent pins has sufficient thickness and strength, so that each of the bent pins can be more firmly combined with the insulating cover and is not easy to fall off or rotate, which improves the stability of the combination The effect of.

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 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 central ring portion without being pressed back, or the bent pin can be protruded from the top of the central ring portion 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 at a relatively spacious place between two adjacent pole portions to facilitate 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 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 may 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 the 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 where the central ring portion is connected, 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 does not extend under the rotor, thereby avoiding friction between the welding spot and the rotor, and having the effect of improving the smoothness of the rotation of the rotor.

In order to make the above and other objectives, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:

Please refer to Figure 3, which 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 The base 1 and the rotor 4 can be driven to rotate by the stator 3.

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 disposed 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 connecting portion 12 . In addition, the circuit board 2 may be a type with bakelite or glass fiber as a substrate, or a flexible printed circuit (FPC), etc., which is not limited by the present invention.

Please refer to Figures 4 and 5, the stator 3 is provided on the outer circumference of the shaft connecting 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 to be assembled and combined with the iron core 31, or The insulating sleeve 32 is covered and combined with the iron core 31 by an integral injection molding method. 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, and 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 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 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 second 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 can also 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 carried out 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 of the bent pins 34 to be combined, and each of the bent pins may be combined with each other. The horizontal portion 342 of the 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 the two adjacent pole portions 311 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 iron core 31), so each of the bent pins 34 The bonding depth with the insulating sleeve 32 here can be larger, 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 pressing back (Figure 6) As shown), or by finely adjusting the height of the bent pins 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 entire 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 plurality of pole shoe portions 312. Each extension portion 322 of the insulating sleeve 32 has a radial length L, and the plurality of extension portions 322 are connected to each other. Starting from the central ring portion 321, two-thirds of the radial length L together form another radial 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 can be located within the maximum radial range D2, and more preferably within the radial range D3, so as to ensure the second end 34b of each bent pin 34 The upper welding spot may not extend below the part of the rotor 4 that is closer to 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, so that 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 penetrates the inner part of the end plate 323 in a radial direction. 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, referring to Figure 3, the present invention also provides a fan having any of the motors of the foregoing embodiments, and the rotor 4 further has a plurality of fan blades 44 located on the outer circumference of the hub 42 for rotating the rotor 4 Guide the air flow. 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 rotor 4 of the fan is not 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 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.

﹝this invention﹞ 1: pedestal 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: perforation 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 ﹝Used ﹞ 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

[Picture 1] A structural diagram of a conventional fan. [Picture 2] A structural diagram of a conventional thin fan. [Figure 3] An exploded perspective view of the first embodiment of the present invention. [Picture 4] A top view along the line A-A in Picture 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.

1: pedestal

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: perforation

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, including: 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 bent pins are electrically connected to the coil assembly, the first end of each bent pin is connected to the insulating sleeve, and when the iron core is radially opposed to a magnetic part of the rotor, each of the bent pins The second end of the leg is located within the inner diameter range formed by the magnetic member, and the second end of each bent pin is used for soldering to a surface of a circuit board facing the insulating sleeve. The motor stator described in item 1 of the scope of patent application, 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 axially upward Not obscured by the coil group. The motor stator described in item 1 of the scope of patent application, wherein the iron core has a plurality of pole portions, the insulating sleeve has a central ring portion and a plurality of extension portions connected to the outer periphery thereof, and the first end of each bent pin Connected to the central ring. For the motor stator described in item 3 of the scope of patent application, 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 horizontal portion The free end forms the second 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 with the circuit board facing the insulating sleeve surface. According to the motor stator described in item 4 of the scope of patent application, the horizontal portion of each bent pin extends along the radial direction of the rotor. According to the motor stator described in item 3 of the scope of patent application, the central ring portion of the insulating sleeve is polygonal, and the first ends of the bent pins are aligned with the corners of the central ring portion. According to the motor stator described in item 3 of the scope of patent application, 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 connected to the central ring portion The top surface is flush. According to the motor stator described in item 3 of the scope of patent application, 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 central ring The top surface of the department. According to the motor stator described in item 1 of the scope of patent application, the iron core has a plurality of pole portions, each of the pole portions is connected with a pole shoe portion, and the insulating sleeve has a central ring portion connected with a plurality of extension portions on the outer periphery , The plurality of extension 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, and the plurality of end plates of the insulating sleeve are respectively aligned with the plurality of pole shoe parts of the iron core , The first ends of the plurality of bent pins are connected to the end plate. According to the motor stator described in item 9 of the scope of patent application, 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 a part of the bend is located in the groove. According to the motor stator described in any one of items 1 to 10 in the scope of the patent application, the iron core has a maximum radial range, and the second end of each bent pin is located within the maximum radial range. For the motor stator described in any one of items 3 to 10 in the scope of the patent application, wherein each of the extension portions of the insulating sleeve has a radial length, and the plurality of extension portions are counted from the point where the center ring portion is connected. Two thirds of the radial length together constitute a radial range, and the second end of each bent pin is located in the radial range. A motor that contains: A base with a shaft joint; A circuit board arranged on the outer circumference of the shaft joint; The stator is arranged on the outer circumference of the shaft joint, and has an insulating sleeve combined with an iron core, a coil group is wound and combined with the insulating sleeve, a plurality of bending pins are electrically connected to the coil group, and each of the bending pins is electrically connected to the coil group. The first end of the leg is connected to the insulating sleeve, and the second end is welded to the surface of the circuit board facing the insulating sleeve; and A rotor is rotatably connected with the shaft connection part, the rotor has a magnetic member diametrically opposite to the iron core, and the second end of each bent pin is located within the inner diameter range formed by the magnetic member. According to the motor described in item 13 of the scope of patent application, wherein the iron core has a plurality of pole portions, and the second end pair of each of the bent pins is located between two adjacent pole portions and is axially different Obscured by the coil group. The motor described in item 13 of the scope of patent application, 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, and the first end of each bent pin is connected In the central ring. According to the motor described in item 15 of the scope of patent application, the central ring portion of the insulating sleeve is polygonal, and the first ends of the bent pins are aligned with the corners of the central ring portion. The motor described in item 13 of the scope of patent application, 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 The end forms the second 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 . According to the motor described in item 17 of the scope of patent application, the horizontal portion of each bent pin extends along the radial direction of the rotor. The motor described in item 13 of the scope of patent application, wherein the iron core has a plurality of pole portions, each of the pole portions is connected with a pole shoe portion, and the insulating sleeve has a central ring portion with a plurality of extension portions connected to the outer periphery, The plurality of extension 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, and the plurality of end plates of the insulating sleeve are respectively aligned with the plurality of pole shoe parts of the iron core, The first ends of the plurality of bent pins are connected to the end plate. According to the motor described in item 19 of the scope of patent application, 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 part of the bend is located in the groove. According to the motor described in any one of items 13 to 20 in the scope of the patent application, the iron core has a maximum radial range, and the second end of each bent pin is located within the maximum radial range. For the motor described in any one of items 15 to 20 in the scope of the patent application, wherein each of the extension portions of the insulating sleeve has a radial length, and the plurality of extension portions are counted from the point where the center ring portion is connected. Two thirds of the radial length together constitute a radial range, and the second end of each bent pin is located in the radial range. A fan having the motor described in any one of items 13 to 22 in the scope of the patent application, and the rotor has a rotating shaft rotatably connected to the shaft joint portion, the rotating shaft is connected to a hub, and a plurality of fan blades are located on the hub On the outer periphery, the magnetic member is arranged in the hub and is radially opposite to the iron core.

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