CN212726592U - Improve stator module's series excited machine - Google Patents

Abstract

The utility model discloses a series excited machine with improved stator assembly, which comprises a stator assembly and a rotor assembly, wherein the stator assembly is provided with a stator wire frame, a stator enameled wire and a stator iron core arranged on the stator wire frame; the transverse section of the stator core is annular, the stator core is provided with at least four threading grooves, the thickness d2 of the stator core is 5-20mm, the stator wire frame is provided with an upper split frame and a lower split frame, the lower part of the upper split frame is provided with an upper shielding part, the upper part of the lower split frame is provided with a lower shielding part, the upper shielding part and the lower shielding part are arranged in an involutory mode or are arranged in an interdigitation mode to form a varnished wire packet insulating part, the outer edge of the varnished wire packet insulating part is provided with a core placing groove, the inner edge of the varnished wire packet insulating part is provided with a plurality of wire placing grooves, and each wire placing groove is respectively involu. The utility model discloses improve the wiring structure of stator line frame, stator core and stator enameled wire simultaneously to the at utmost reaches the whole height that reduces series excited machine.

Description

Improve stator module's series excited machine

Technical Field

The utility model belongs to the technical field of the series motor technique and specifically relates to an improve stator module's series motor is related to.

Background

The series motor mainly comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a stator core, a stator enameled wire and a stator wire frame used for winding the stator enameled wire.

Along with the continuous development and progress of society, the quality of life of people is continuously improved, the requirements of household appliance industry on motors are also continuously improved, the development trend requires that the motors are small in size, large in torsion and high in rotating speed, and the finished products of the electric appliances are small in size, large in torsion and high in rotating speed relatively. The traditional design of household appliance high-power motors is 98 series, 95 series and 88 series; when the power of the motor needs to reach more than 2000W, the thickness of the motor iron core stack needs to be more than 40mm, the manufacturing process of the motor iron core with the thickness of more than 40mm is difficult, and the reject ratio is high.

Secondly, current stator line frame is the integrated into one piece structure that constitutes by last supporting part and bottom suspension fagging portion, goes up for hollow out construction in order to leave space assembly stator core between supporting part and the bottom suspension fagging portion, then the fixed stator core of rethread locating component, such assembly structure needs plus insulating assembly to separate stator core and stator winding insulation shield, and its structure is complicated, and holistic rotor structure is bulky, does not accord with the demand that household electrical appliances motor is miniaturized on the market.

If the height of the motor is too high, the volume of the finished end appliance is also large, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a novel series excited machine through improving stator module to reduce whole stator module's height by a wide margin, thereby reduce series excited machine's whole height.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a series excited motor with an improved stator assembly comprises the stator assembly and a rotor assembly, wherein the rotor assembly is matched with the stator assembly in a rotating mode, the rotor assembly is provided with an output rotating shaft for outputting power, the stator assembly is provided with a stator wire frame, a stator enameled wire wound on the stator wire frame and a stator iron core arranged on the stator wire frame;

the transverse section of the stator core is annular, the stator core is provided with at least four threading grooves which are distributed at intervals in an annular manner, the included angle between the central point of each threading groove and the central point of the stator core is 90 degrees, the outer diameter d1 of the stator core is 100 plus 200mm, the thickness d2 of the stator core is 5-20mm, and the inner diameter d3 of the stator core is 60-110 mm;

the stator wire frame is provided with an upper split frame and a lower split frame, an upper shielding part is arranged at the lower part of the upper split frame, a lower shielding part is arranged at the upper part of the lower split frame, the upper shielding part and the lower shielding part are arranged in an involutory mode or are arranged in an interdigitation mode to form an enameled wire wrapping insulating part, a core placing groove used for containing a stator iron core is arranged at the outer edge of the enameled wire wrapping insulating part, a plurality of wire placing grooves used for containing stator enameled wires are arranged at the inner edge of the enameled wire wrapping insulating part, and each wire placing groove is respectively involutory with a corresponding wire threading groove up and.

In a further technical scheme, a terminal positioning portion is arranged at a position, corresponding to the wire slot, of the stator wire frame, the stator assembly is provided with a puncture terminal, the puncture terminal comprises a male terminal and a female terminal, one end of the female terminal is electrically connected with the male terminal, the other end of the female terminal is connected to the terminal positioning portion, the female terminal is provided with at least one puncture tip used for puncturing the stator enameled wire, and a conductive lead is arranged at the end of the male terminal and used for being connected with an external power supply.

In a further technical scheme, the outer diameter d1 of the stator core is 100-120mm, the thickness d2 of the stator core is 10-18mm, and the inner diameter d3 of the stator core is 60-70 mm.

In a further technical scheme, the outer diameter d1 of the stator core is 120-140mm, the thickness d2 of the stator core is 10-15mm, and the inner diameter d3 of the stator core is 70-80 mm.

In a further technical scheme, the outer diameter d1 of the stator core is 140-160mm, the thickness d2 of the stator core is 7-15mm, and the inner diameter d3 of the stator core is 80-90 mm.

In a further technical scheme, the outer diameter d1 of the stator core is 160-200mm, the thickness d2 of the stator core is 7-15mm, and the inner diameter d3 of the stator core is 90-110 mm.

In a further technical scheme, the transverse section of the core placing groove is C-shaped;

the transverse section of the wire placing groove is in a shape of a mouth or an O;

the number of the wire arrangement grooves is 4, 6 or 8.

In a further technical scheme, the structure of the stator coil holder is any one of the following structures,

1) the upper split frame and the lower split frame are respectively an integrally formed annular body.

2) The upper split frame is provided with at least four semi-arc-shaped upper supporting blocks, and the four upper supporting blocks are sequentially butted end to form an annular upper split frame;

the lower split frame is provided with at least four semi-arc-shaped lower supporting blocks, and the four lower supporting blocks are sequentially butted end to form an annular lower split frame;

each upper supporting block and the corresponding lower supporting block are respectively arranged in an involutory way.

In a further technical scheme, the structure of the puncture terminal is any one of the following structures,

1) the male terminal and the female terminal are integrally formed to form the puncture terminal, and the transverse section of the puncture terminal is L-shaped.

2) Public first terminal with female first terminal is split type setting, and public first terminal is provided with electrically conductive connecting portion and the insulating terminal cover of locating the electrically conductive connecting portion outside electrically conductive connecting portion of cover, the shape and the size and the electrically conductive connecting portion looks adaptation of insulating terminal cover, and the one end shaping of electrically conductive connecting portion has the end of riveting with female first terminal riveting, the other end shaping has the wiring that supplies electrically conductive lead wire to wear to establish, and the contained angle of riveting end and wiring is 90 degrees.

In a further technical scheme, one of the upper shielding part and the lower shielding part is provided with an opposite insertion matching part, and the other part is provided with an opposite insertion groove at a position corresponding to the opposite insertion matching part;

an upper wire blocking block is arranged on the inner side of the upper split frame, a lower wire blocking block is arranged on the inner side of the lower split frame, the upper wire blocking block and the lower wire blocking block are arranged in an involutory mode or an opposite insertion mode to form a wire blocking part, and the wire placing groove is formed between the wire blocking part and the enameled wire insulating part;

the upper part of the upper split frame extends outwards to form an upper guide part, the upper part of the lower split frame extends outwards to form a lower guide part, and at least when the upper shielding part and the lower shielding part are arranged in a matching way or are inserted oppositely, the core placing groove is formed among the upper guide part, the lower guide part and the insulated part of the enameled wire;

and a winding part is formed between two adjacent wire placing grooves of the wire rack, and the winding part comprises an upper winding part formed on the upper split frame and a lower winding part formed on the lower split frame.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is:

1. the utility model increases the outer diameter of the stator core to reduce the thickness of the stator core, so that the height of the motor is greatly reduced, the volume is reduced, and the requirement of miniaturization of the finished product of the terminal household appliance is met; secondly, when stator core's external diameter enlarges, the utility model discloses a stator core adopts the structure in four threading grooves to solve the big and low problem in life-span of two pole coil, the motor power who adopts this single-phase quadrupole stator core structure reaches 2000W.

2. The utility model provides a novel stator line frame for prior art's stator line frame, need not to increase the insulating piece in addition, its compact structure for stator module's volume approaches the miniaturization, and is highly low, and the practicality is high.

3. The utility model discloses a puncture point of female head terminal directly punctures the coating of stator enameled wire, in the practical application, only need to lead electrical lead lug connection on external power, just realize stator enameled wire and external power electrical property and switch on, it is for current stator line frame, the process that manual operation stator enameled wire removed the coating has been removed from, need not to lay wire both stator enameled wire and conductive lead wire in addition simultaneously, improve production efficiency and product yield, simplify motor stator module's wiring, further reduce stator module's mounting height.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural view of a prior art stator core;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a plan view of the stator core of the first embodiment;

fig. 4 is a plan view of a stator core of a second embodiment;

fig. 5 is a side view of a stator core of the present invention;

fig. 6 is a schematic perspective view of a stator core according to the present invention;

fig. 7 is a structural view of a stator bobbin of the first embodiment;

fig. 8 is an exploded structural view of a stator bobbin of the first embodiment;

FIG. 9 is a schematic structural view of an upper split bobbin of the first embodiment;

FIG. 10 is a schematic structural view of a lower split bobbin of the first embodiment;

fig. 11 is a schematic view of a combined structure of stator bobbins according to the second embodiment;

fig. 12 is a schematic structural view of a stator bobbin of the second embodiment;

fig. 13 is an exploded structural view of a stator bobbin of the second embodiment;

FIG. 14 is a schematic structural view of the piercing terminal of the first embodiment;

FIG. 15 is a schematic structural view of a pierce terminal according to the second embodiment;

fig. 16 is a schematic structural view of the male terminal and the female terminal.

Detailed Description

The following are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 16, the utility model provides a pair of improve stator module's series excited machine, including stator module and rotor subassembly, the relative stator module normal running fit of rotor subassembly, the rotor subassembly is provided with the output pivot that is used for output power, and stator module is provided with stator line frame 1, around the stator enameled wire 2 of locating stator line frame 1 and install in stator core 3 of stator line frame 1.

As shown in fig. 3-6, the transverse cross section of the stator core 3 is annular, the stator core 3 is provided with at least four threading slots 30, the four threading slots 30 are annularly distributed at intervals, the included angle between the central point of each threading slot 30 and the central point of the stator core 3 is 90 °, the outer diameter d1 of the stator core 3 is 200mm plus 100 mm, the thickness d2 of the stator core 3 is 5-20mm, and the inner diameter d3 of the stator core 3 is 60-110mm, the utility model discloses an increase the outer diameter of the stator core 3 to reduce the thickness of the stator core 3, so that the motor height is greatly reduced, the volume is reduced, and the requirement of miniaturization of the terminal household appliance finished product is met; secondly, when stator core 3's external diameter enlarges, the utility model discloses a threading groove 30's structure to solve two pole coils (as shown in fig. 1) span big and the low problem of life-span, the motor power who adopts this single-phase quadrupole stator core structure is up to 2000W.

In a possible embodiment, the outer diameter d1 of the stator core 3 is 100-120mm, the thickness d2 of the stator core 3 is 10-18mm, and the inner diameter d3 of the stator core 3 is 60-70 mm.

In a specific embodiment, the outer diameter d1 of the stator core 3 is 105mm, the thickness d2 of the stator core 3 is 15mm, and the inner diameter d3 of the stator core 3 is 67 mm.

In another possible embodiment, the outer diameter d1 of the stator core 3 is 120-140mm, the thickness d2 of the stator core 3 is 10-15mm, and the inner diameter d3 of the stator core 3 is 70-80 mm.

In a specific embodiment, the outer diameter d1 of the stator core 3 is 120mm, the thickness d2 of the stator core 3 is 10mm, and the inner diameter d3 of the stator core 3 is 76 mm.

In another possible embodiment, the outer diameter d1 of the stator core 3 is 140-160mm, the thickness d2 of the stator core 3 is 7-15mm, and the inner diameter d3 of the stator core 3 is 80-90 mm.

In a specific embodiment, the outer diameter d1 of the stator core 3 is 140mm, the thickness d2 of the stator core 3 is 10mm, and the inner diameter d3 of the stator core 3 is 81 mm.

In another possible embodiment, the outer diameter d1 of the stator core 3 is 160-200mm, the thickness d2 of the stator core 3 is 7-15mm, and the inner diameter d3 of the stator core 3 is 90-110 mm.

In a specific embodiment, the outer diameter d1 of the stator core 3 is 160mm, the thickness d2 of the stator core 3 is 7mm, and the inner diameter d3 of the stator core 3 is 95.5 mm.

As shown in fig. 7 to 13, the stator bobbin 1 is provided with an upper split bobbin 10 and a lower split bobbin 11, the lower portion of the upper split bobbin 10 is provided with an upper shielding portion 1000, the upper portion of the lower split bobbin 11 is provided with a lower shielding portion 1100, the upper shielding portion 1000 and the lower shielding portion 1100 are arranged in an involution manner or an interlude manner to form a varnished wire wrapped insulating portion 12, the outer edge of the varnished wire wrapped insulating portion 12 is provided with a core accommodating groove 13 for accommodating the stator core 3, the inner edge of the varnished wire wrapped insulating portion 12 is provided with a plurality of wire accommodating grooves 14 for accommodating the stator varnished wires 2, each wire accommodating groove 14 is respectively arranged in an involution manner with the corresponding wire threading groove 30, and the stator varnished wires 2 are directly insulated from the stator core 3 through the varnished wire wrapped insulating portion 12.

Preferably, the transverse section of the core setting groove 13 is in a C shape; put the transverse section of wire casing 14 and be "mouth" type or "O" type, stator enameled wire 2 holding is in putting wire casing 14 for stator module assembles the completion, and stator enameled wire 2 is in same horizontal plane with stator core 3, and its compact structure makes the stator module volume approach the miniaturization, and the practicality is high.

What particularly say, put the quantity of wire casing 14 can be 4, 6 or 8, four threading grooves 30 of stator core 3 correspond with the quantity of putting wire casing 14 and keep unanimous, the utility model provides a stator core, stator line frame, puncture the terminal and be applicable to quadrupole series excited machine, six looks series excited machine or eight looks series excited machine, for the clear explanation the utility model discloses a theory of operation, the embodiment that the utility model provides and the drawing all use quadrupole motor as the example.

More specifically, the stator bobbin 1 is configured as any one of the following structures,

1) as shown in fig. 7 to 10, the upper sub-frame 10 and the lower sub-frame 11 are respectively an integrally formed annular body.

2) As shown in fig. 11-13, the upper split frame 10 is provided with at least four semi-arc-shaped upper support blocks 100, the four upper support blocks 100 are sequentially butted end to form an annular upper split frame 10, the lower split frame 11 is provided with at least four semi-arc-shaped lower support blocks 110, the four lower support blocks 110 are sequentially butted end to form an annular lower split frame 11, and each upper support block 100 and the corresponding lower support block 110 are respectively arranged in an involution manner.

In a preferred embodiment, one of the upper shield part 1000 and the lower shield part 1100 is provided with a mating part 1001, and the other is provided with a mating slot 1101 at a position corresponding to the mating part 1001, and the mating part 1001 and the mating slot 1101 are mated in a mating manner, so as to realize the assembly of the upper shield part 1000 and the lower shield part 1100; an upper wire blocking block 1002 is arranged on the inner side of the upper split frame 10, a lower wire blocking block 1102 is arranged on the inner side of the lower split frame 11, the upper wire blocking block 1002 and the lower wire blocking block 1102 are arranged in an involutory mode or in an oppositely inserted mode to form a wire blocking part, and the wire placing groove 14 is formed between the wire blocking part and the enameled wire insulating part 12; an upper guide part 1003 extends and forms outwards from the upper part of the upper split frame 10, a lower guide part 1103 extends and forms outwards from the upper part of the lower split frame 11, and at least when the upper shielding part 1000 and the lower shielding part 1100 are arranged in a matching way or are inserted in a matching way, the core placing groove 13 is arranged between the upper guide part 1003, the lower guide part 1103 and the enameled wire insulation part 12; a winding part is formed between two adjacent wire placing slots 14, and the winding part comprises an upper winding part 1004 formed on the upper split frame 10 and a lower winding part 1104 formed on the lower split frame 11, so that the stator enameled wire 2 can be wound on the stator wire frame 1 by standard winding equipment.

In a further embodiment, as shown in fig. 14 to 16, a terminal positioning portion 15 is disposed at a position of the stator bobbin 1 corresponding to the wire slot 14, the stator assembly is provided with a piercing terminal 4, the piercing terminal 4 includes a male terminal 40 and a female terminal, one end of the female terminal 41 is electrically connected to the male terminal 40, the other end of the female terminal 41 is connected to the terminal positioning portion 15, the female terminal 41 has at least one piercing tip 410 for piercing the stator enameled wire 2, and an end of the male terminal 40 is provided with a conductive lead 42 for connecting an external power source. The utility model discloses a puncture point 410 of female head terminal 41 directly punctures the coating of stator enameled wire 2, among the practical application, only need to lead wire 22 lug connection on external power, just realize stator enameled wire 2 and external power electrical property and switch on, it is for current stator line frame, the process that manual operation stator enameled wire 2 got rid of the coating has been removed from, need not to lay wire stator enameled wire 2 and conductive lead wire 42 both in addition simultaneously, improve production efficiency and product yield, simplify motor stator module's wiring.

Wherein the piercing terminal 4 is configured in any one of the following configurations,

1) as shown in fig. 14, male terminal 40 with female terminal 41 is split type setting, male terminal 40 is provided with electrically conductive connecting portion 400 and the insulating terminal cover 401 of locating the electrically conductive connecting portion 400 outside with the cover, the shape and the size of insulating terminal cover 401 and electrically conductive connecting portion 400 looks adaptation, the one end shaping of electrically conductive connecting portion 400 has the riveting end 4000 riveted with female terminal 41, the other end shaping has the wiring end 4001 that supplies electrically conductive lead 42 to wear to establish, the contained angle of riveting end 4000 and wiring end 4001 is 90 degrees for pierce through the overall structure of terminal 4 and be the flag type, for traditional formula binding post that cut straightly, the utility model discloses a pierce through terminal 4's structure can reduce the height of whole stator module by a wide margin to reduce the overall height of series excited machine.

2) As shown in fig. 15, the piercing terminal 4 is formed by integrally molding the male terminal 40 and the female terminal 41, so that the riveting process of the male terminal 40 and the female terminal 41 is simplified, the structure of the motor stator assembly is more compact, and the transverse cross section of the piercing terminal 4 is L-shaped.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. The utility model provides an improve stator module's series excited machine, includes stator module and rotor subassembly, the relative stator module normal running fit of rotor subassembly, the rotor subassembly is provided with the output pivot that is used for exporting power, its characterized in that: the stator assembly is provided with a stator coil holder (1), a stator enameled wire (2) wound on the stator coil holder (1) and a stator core (3) arranged on the stator coil holder (1);

the transverse section of the stator core (3) is annular, the stator core (3) is provided with at least four threading grooves (30), the four threading grooves (30) are distributed at intervals in an annular shape, the included angle between the central point of each threading groove (30) and the central point of the stator core (3) is 90 degrees, the outer diameter d1 of the stator core (3) is 100-200mm, the thickness d2 of the stator core (3) is 5-20mm, and the inner diameter d3 of the stator core (3) is 60-110 mm;

the stator wire frame (1) is provided with an upper split frame (10) and a lower split frame (11), the lower portion of the upper split frame (10) is provided with an upper shielding portion (1000), the upper portion of the lower split frame (11) is provided with a lower shielding portion (1100), the upper shielding portion (1000) and the lower shielding portion (1100) are arranged in an involutory mode or are arranged in an oppositely inserted mode to form an enameled wire package insulating portion (12), the outer edge of the enameled wire package insulating portion (12) is provided with a core placing groove (13) used for containing a stator core (3), the inner edge of the enameled wire package insulating portion (12) is provided with a plurality of wire placing grooves (14) used for containing stator enameled wires (2), and each wire placing groove (14) is respectively arranged in an involutory mode with a corresponding threading groove (30).

2. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the utility model discloses a motor stator with puncture terminal, including stator line frame (1), stator coil frame (1), position department of putting wire casing (14) is provided with terminal location portion (15), stator module is provided with puncture terminal (4), and puncture terminal (4) are including public first terminal (40) and female first terminal, the one end and public first terminal (40) electric connection of female first terminal (41), and the other end of female first terminal (41) is connected in terminal location portion (15), and female first terminal (41) have at least one puncture point (410) that is used for puncturing stator enameled wire (2), and the tip of public first terminal (40) is provided with useful electrically conductive lead (42) for be used for connecting external power.

3. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the outer diameter d1 of the stator core (3) is 100-120mm, the thickness d2 of the stator core (3) is 10-18mm, and the inner diameter d3 of the stator core (3) is 60-70 mm.

4. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the outer diameter d1 of the stator core (3) is 120-140mm, the thickness d2 of the stator core (3) is 10-15mm, and the inner diameter d3 of the stator core (3) is 70-80 mm.

5. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the outer diameter d1 of the stator core (3) is 140-160mm, the thickness d2 of the stator core (3) is 7-15mm, and the inner diameter d3 of the stator core (3) is 80-90 mm.

6. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the outer diameter d1 of the stator core (3) is 160-200mm, the thickness d2 of the stator core (3) is 7-15mm, and the inner diameter d3 of the stator core (3) is 90-110 mm.

7. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the transverse section of the core placing groove (13) is C-shaped;

the transverse section of the wire arrangement groove (14) is in a shape of a mouth or an O;

the number of the wire arrangement grooves (14) is 4, 6 or 8.

8. A series machine with an improved stator assembly, as set forth in claim 1, wherein: the structure of the stator coil holder (1) is any one of the following structures,

1) the upper split frame (10) and the lower split frame (11) are respectively an integrally formed annular body;

2) the upper split frame (10) is provided with at least four semi-arc-shaped upper supporting blocks (100), and the four upper supporting blocks (100) are sequentially butted end to form an annular upper split frame (10);

the lower split frame (11) is provided with at least four semi-arc-shaped lower supporting blocks (110), and the four lower supporting blocks (110) are sequentially butted end to form an annular lower split frame (11);

each upper support block (100) and the corresponding lower support block (110) are respectively arranged in an involution way.

9. A series motor with an improved stator assembly, as set forth in claim 2, wherein: the piercing terminal (4) is configured in any one of the following configurations,

1) the male terminal (40) and the female terminal (41) are integrally formed to form the puncture terminal (4), and the transverse section of the puncture terminal (4) is L-shaped;

2) public first terminal (40) with female first terminal (41) are split type setting, and public first terminal (40) are provided with electrically conductive connecting portion (400) and cover and locate insulating terminal cover (401) in electrically conductive connecting portion (400) outside, and the shape and the size and the electrically conductive connecting portion (400) looks adaptation of insulating terminal cover (401), and the one end shaping of electrically conductive connecting portion (400) is equipped with rivets end (4000) with female first terminal (41) riveted, and the other end shaping has and supplies electrically conductive terminal (4001) that lead wire (42) wore to establish, and riveting end (4000) is 90 degrees with the contained angle of terminal (4001).

10. A series motor with an improved stator assembly according to any of claims 1-9, wherein: one of the upper shielding part (1000) and the lower shielding part (1100) is provided with an opposite insertion matching part (1001), and the other part is provided with an opposite insertion groove (1101) at the position corresponding to the opposite insertion matching part (1001);

an upper wire blocking block (1002) is arranged on the inner side of the upper split frame (10), a lower wire blocking block (1102) is arranged on the inner side of the lower split frame (11), the upper wire blocking block (1002) and the lower wire blocking block (1102) are arranged in a matched mode or in an inserted mode to form a wire blocking part, and a wire placing groove (14) is formed between the wire blocking part and the enameled wire insulating part (12);

an upper guide part (1003) extends outwards from the upper part of the upper split frame (10), a lower guide part (1103) extends outwards from the upper part of the lower split frame (11), and at least when the upper shielding part (1000) and the lower shielding part (1100) are arranged in a matched mode or are inserted in a matched mode, the core placing groove (13) is formed among the upper guide part (1003), the lower guide part (1103) and the enameled wire insulation part (12);

and a winding part is formed between two adjacent wire placing grooves (14), and comprises an upper winding part (1004) formed on the upper split frame (10) and a lower winding part (1104) formed on the lower split frame (11).

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