CN111224492A

CN111224492A - Wound iron core stator with lead protection frame

Info

Publication number: CN111224492A
Application number: CN202010065095.0A
Authority: CN
Inventors: 赵新超; 李贻伟; 张衍军; 孙祥善
Original assignee: Wolong Electric Jinan Motor Co ltd; Wolong Electric Group Co Ltd
Current assignee: Wolong Electric Jinan Motor Co ltd; Wolong Electric Drive Group Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-06-02

Abstract

The invention discloses a wound iron core stator with a lead protection frame, and relates to the field of wound stator iron core motors. For an inner rotor motor, particularly a small-size motor, punching sheets are difficult to roll, after the punching sheets are wound into an iron core, the shape and the size are difficult to guarantee, and the structural stability is poor, so that how to fix the outgoing line and improve the structural stability of a wound iron core stator becomes a problem to be solved by technical personnel. The stator core is formed by winding and stacking the core units, the insulating framework is provided with a wire outlet frame, the wire outlet frame is provided with a wire outlet groove, a coil lead is embedded in the wire outlet groove to be led out, and the wire outlet frame is provided with a lead protection plate to fix the lead. This technical scheme is fixed the lead wire through the lead wire protection shield, guarantees the fixed structural stability of lead wire.

Description

Wound iron core stator with lead protection frame

Technical Field

The invention relates to the field of wound stator core motors, in particular to a wound core stator with a lead protection frame.

Background

At present, in the field of traditional household electrical appliances, with the maturity and popularization of various processing technologies, the industry admission threshold is reduced, the market competition is more and more severe, and each manufacturer continuously reduces the product price in order to obtain an order, so that the product profit is further compressed. How to reduce the product cost becomes the key for improving the profit of enterprises.

The stator is one of the important parts of the motor and is also the main direction of the motor for reducing the cost, at present, the winding type iron core is widely applied to the outer rotor type motor, and the stator has the obvious effect of reducing the cost due to the fact that the discharging sheets are more compact during blanking and the material utilization rate is high.

However, for an inner rotor motor, particularly a small-sized motor, the punching sheet of the inner rotor motor is difficult to roll, after the inner rotor motor is wound into an iron core, the shape and the size are difficult to guarantee, and the structural stability is poor, so that how to fix the outgoing line and improve the structural stability of the wound iron core stator becomes a problem to be solved by technical personnel.

Disclosure of Invention

The technical problem to be solved and the technical task provided by the invention are to perfect and improve the prior technical scheme, and provide a wound core stator with a lead protection frame, so as to improve the structural stability of the wound core stator. Therefore, the invention adopts the following technical scheme.

The utility model provides a take coiling iron core stator of lead protection frame, includes stator core, coil and insulating skeleton, stator core include the yoke portion of periphery and be located the inboard radial tooth portion of yoke portion, insulating skeleton on be equipped with the same bobbin that corresponds with position of tooth portion quantity, the coil coiling on the bobbin, the isolated stator core of bobbin and coil, stator core stack by the coiling of a plurality of iron core units and form, insulating skeleton on be equipped with out the bobbin, be equipped with the wire slot on the bobbin, the lead wire of coil inlays and draws in the wire slot, is equipped with the lead protection shield on the bobbin and fixes the lead wire. According to the technical scheme, the wire outlet frame is adopted, the lead is fixed through the lead protection plate on the wire outlet frame, and the structural stability of the wound iron core stator is effectively improved.

As a preferable technical means: and a plurality of positioning claws clamped on the peripheral surface of the stator core are uniformly distributed on the outer side of the insulating framework in a surrounding manner. The positioning claw fixes the outer ring of the stator core in a positioning mode and fixes the lead through the lead protection plate, the structural stability of the wound stator core can be effectively improved, and the lead is effectively guaranteed to be led out to be fixed.

As a preferable technical means: the stator core is characterized in that axial positioning grooves are uniformly distributed on the outer peripheral surface of the stator core in a surrounding mode, the number of the positioning grooves is the same as that of the tooth parts, the positioning grooves are located on the central line of each tooth part, and each positioning claw is embedded into each positioning groove. The stator core positioning device can effectively ensure that the outer peripheral surface of the stator of the wound iron core is not provided with an outward convex structure, and ensures the positioning stability between the positioning claw and the stator core.

As a preferable technical means: the iron core unit include sclausura iron core unit and be located sclausura iron core unit about both sides pile up porose iron core unit, porose iron core unit for sclausura iron core unit on the basis increased a plurality of axial positioning through-holes that encircle the equipartition, positioning through-hole is located the radial central line of tooth portion to be located the hookup location of tooth portion and yoke portion. Effectively realize stator core's stacked structure, through set up positioning hole at reasonable position, can not change the magnetic flow and distribute to can reduce stator core weight, also be convenient for better with insulating skeleton location be connected fixedly.

As a preferable technical means: the insulating framework comprises an upper framework and a lower framework, the wire outlet frame and the lead protection plate are arranged on the upper framework, and the positioning claws are distributed on the upper framework and the lower framework in the same way. Set up the positioning pawl relatively from stator core's upper and lower both sides, can realize more firm and stable location fixed knot and construct, guarantee stator core's that can be better structural stability.

As a preferable technical means: and the upper framework and the lower framework are provided with positioning columns which are embedded into the positioning through holes of the iron core units with holes. Through the positioning column embedding positioning through hole, realized insulating skeleton and stator core's location better and connected fixedly, promote stator core's structural stability better.

As a preferable technical means: the outside of bobbin be equipped with outer wire protection board, the inboard of bobbin is equipped with inner wire protection board, the outside of outer wire protection board be equipped with and protect the line box, the end of coil is located and is protected in the line box and be connected with the lead wire. The outer wire protection plate and the inner wire protection plate can prevent the coil from being separated from the inner side and the outer side of the winding frame, the tail end of the coil is arranged in the wire protection box and connected with the lead wire, the electrical safety of the coil and the lead wire can be effectively guaranteed, and insulation and isolation are guaranteed.

As a preferable technical means: : lead wire protection shield be the sector plate, inboard arc is the same with the inner casing, outside arc is the same with the outer casing, the outside of lead wire protection shield is equipped with a plurality of decurrent spacing risers to locate out the left and right sides of line frame respectively, be equipped with the card hole of a plurality of vertical penetrations on the lead wire protection shield, the outer casing on be equipped with the card post that corresponds with the card hole, the lead wire protection shield is gone into card post location through card hole card and is fixed, fixed back spacing riser side direction pastes with the outer side of outer casing mutually. Effectively realize that lead wire protection shield and insulating skeleton's is connected fixedly to carry on spacingly to the lead wire.

As a preferable technical means: the lead protection plate is provided with a plurality of material reducing holes for reducing the material consumption. The material consumption of the lead protection plate is reduced, and the cost is reduced.

As a preferable technical means: the insulating framework is integrally formed by injection molding by taking the stator core as an insert. Integrative injection moulding, sound construction, stability is better.

As a preferable technical means: the number of the winding frames is more than or equal to 9; the number of the positioning through holes of each iron core unit with holes is more than or equal to 3. The number of the winding frames is more than or equal to 9, the number of the corresponding tooth parts is more than or equal to 9, the iron core unit is easier to wind, the structure is more stable after winding, the number of the positioning through holes is more than or equal to 3, and the structural stability of the stator iron core can be better guaranteed.

Has the advantages that: the stator core is manufactured by the positioning claw, the positioning column and integral injection molding, so that the structural stability of the wound stator core stator can be effectively guaranteed; through protecting line box, lead protection shield and the frame of being qualified for the next round of competitions, can effectively promote the protection and the position of leading wire and inject, prevent that the coil lead wire from putting into protecting the line box because of external force damage, the end of coil, can guarantee the electric clearance between coil and other spare parts.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic structural view of the holed core unit according to the present invention.

FIG. 3 is a schematic diagram of the upper skeleton structure of the present invention.

FIG. 4 is a schematic view of the positioning post of the present invention positioned on the insulating frame.

In the figure: 1-a stator core; 2-an insulating framework; 3-a coil; 4-a lead; 5-lead protection plate; 101-a yoke; 102-a tooth; 103-positioning grooves; 104-positioning through holes; 201-positioning claws; 202-a wire protection box; 203-wire outlet frame; 204-outlet slot; 205-an outer patch panel; 206-inner patch panel; 207-positioning columns; 501-a limiting vertical plate; 502-card hole; 503-material reducing holes.

Detailed Description

The technical scheme of the invention is further explained in detail by combining the drawings in the specification.

As shown in fig. 1-4, a wound core stator with a lead protection frame includes a stator core 1, a coil 3 and an insulating framework 2, where the stator core 1 includes a yoke portion 101 at the periphery and a radial tooth portion 102 located at the inner side of the yoke portion 101, the insulating framework 2 is provided with a bobbin corresponding to the tooth portion 102 in number and position, the coil 3 is wound on the bobbin, the bobbin isolates the stator core 1 and the coil 3, the stator core 1 is formed by winding and stacking core units, the insulating framework 2 is provided with a lead frame 203, the lead frame 203 is provided with a lead slot 204, a lead 4 of the coil 3 is embedded in the lead slot 204 and led out, the lead protection plate 5 is provided on the lead frame 203 to fix the lead 4, and the outer side of the insulating framework 2 is surrounded by 4 positioning claws 201 uniformly distributed on the outer peripheral surface of the.

In order to ensure a stable positioning structure between the positioning pawls 201 and the stator core 1, axial positioning grooves 103 are uniformly distributed on the outer circumferential surface of the stator core 1 in a surrounding manner, the number of the positioning grooves 103 is the same as that of the tooth portions 102, the positioning grooves 103 are located on the central line of each tooth portion 102, and each positioning pawl 201 is embedded in each positioning groove 103. The stator outer peripheral surface of the winding iron core can be effectively guaranteed to be free of an outward protruding structure, and the positioning stability between the positioning claw 201 and the stator iron core 1 is guaranteed.

In order to facilitate the positioning connection with the insulating framework 2, the iron core unit comprises a non-porous iron core unit and porous iron core units stacked on the upper side and the lower side of the non-porous iron core unit, 3 axial positioning through holes 104 uniformly distributed in a surrounding mode are additionally arranged on the basis that the porous iron core units are non-porous iron core units, and the positioning through holes 104 are located on the radial central line of the tooth part 102 and located at the connecting position of the tooth part 102 and the yoke part 101. Effectively realize stator core 1's stacked structure, through set up positioning hole 104 in reasonable position, can not change the magnetic flow distribution to can reduce stator core 1 weight, also be convenient for better with insulating skeleton 2 location connection fixed.

For better structural stability of the stator core 1, the insulating framework 2 includes an upper framework and a lower framework, the wire outlet frame 203 and the lead protection plate 5 are arranged on the upper framework, and the positioning claws 201 are distributed on the upper framework and the lower framework in the same way. Set up positioning pawl 201 from stator core 1's upper and lower both sides relatively, can realize more firm and stable location fixed knot and construct, guarantee stator core 1's that can be better structural stability.

In order to better realize the positioning, connecting and fixing of the insulating framework 2 and the stator core 1, positioning columns 207 are arranged on the upper framework and the lower framework and are embedded into the positioning through holes 104 of the core unit with the holes. Through reference column 207 embedding positioning hole 104 in, realized insulating skeleton 2 and stator core 1's location better and be connected fixedly, promote stator core 1's structural stability better.

In order to ensure the electrical safety of the coil 3 and the lead 4, an outer wire protection plate 205 is arranged on the outer side of the winding frame, an inner wire protection plate 206 is arranged on the inner side of the winding frame, a wire protection box 202 is arranged on the outer side of the outer wire protection plate 205, and the tail end of the coil 3 is arranged in the wire protection box 202 and connected with the lead 4. Outer wire protection board 205 and inner wire protection board 206 can prevent that coil 3 from breaking away from the inside and outside both sides of bobbin, locate coil 3's end and be connected with lead wire 4 in protecting line box 202, can effectively guarantee coil 3 and lead wire 4's electrical safety, guarantee insulating isolation.

In order to realize that lead protection shield 5 is fixed with being connected of insulating skeleton 2, lead protection shield 5 is the sector plate, inboard arc is the same with the inner casing, the outside arc is the same with the outer casing, the outside of lead protection shield 5 is equipped with 2 decurrent spacing risers 501, and locate the left and right sides of play line frame 203 respectively, be equipped with 2 vertical card holes 502 that run through on the lead protection shield 5, be equipped with the card post that corresponds with card hole 502 on the outer casing 205, lead protection shield 5 blocks the card post location through card hole 502 card and fixes, fixed back spacing riser 501 side direction pastes with the outer casing 205 outside mutually. Effectively realize lead protection board 5 and insulating skeleton 2 be connected fixedly to carry out spacingly to lead wire 4.

In order to reduce the material consumption, the lead protection plate 5 is provided with 2 material reducing holes 503 for reducing the material consumption. The material consumption of the lead protection plate 5 is reduced, and the cost is reduced.

In order to make the stator structure more firm, the insulating framework 2 is integrally injection-molded by taking the stator core 1 as an insert. Integrative injection moulding, sound construction, stability is better.

This structure can effectively promote the structural stability of coiling back stator core 1. In this embodiment, the positioning groove 103 is an arc-shaped groove, the locking hole 502 of the lead protection plate 5 is an arc-shaped long hole with the same radian as the outer protection plate 205, the locking post is an upward convex shape on the outer protection plate 205 and matches with the locking hole 502, and the wire outlet frame 203 and the insulating frame 2 are integrated.

The wound core stator with lead frame shown in fig. 1-4 is a specific embodiment of the present invention, and has demonstrated the outstanding substantive features and significant advances of the present invention, and it is within the scope of the present invention to modify the same in shape, structure, etc. according to the practical needs.

Claims

1. The utility model provides a take coiling iron core stator of lead wire fender bracket, includes stator core (1), coil (3) and insulating skeleton (2), stator core (1) include yoke portion (101) of periphery and be located radial tooth portion (102) of yoke portion (101) inboard, insulating skeleton (2) on be equipped with tooth portion (102) quantity the same with the bobbin that the position corresponds, coil (3) coiling on the bobbin, isolated stator core (1) of bobbin and coil (3), stator core (1) stack up its characterized in that by the coiling of a plurality of iron core units: the coil is characterized in that an outlet frame (203) is arranged on the insulating framework (2), an outlet groove (204) is formed in the outlet frame (203), a lead (4) of the coil (3) is embedded in the outlet groove (204) to be led out, and a lead protection plate (5) is arranged on the outlet frame (203) to fix the lead (4).

2. The wound core stator with a lead frame according to claim 1, wherein: the outer side of the insulating framework (2) is uniformly provided with a plurality of positioning claws (201) clamped on the outer peripheral surface of the stator core (1) in a surrounding way.

3. The wound core stator with the lead frame as claimed in claim 2, wherein: the stator core is characterized in that axial positioning grooves (103) are uniformly distributed on the outer peripheral surface of the stator core (1) in a surrounding mode, the number of the positioning grooves (103) is the same as that of the tooth parts (102), the positioning grooves are located on the central line of each tooth part (102), and each positioning claw (201) is embedded into each positioning groove (103).

4. The wound core stator with a lead frame according to claim 3, wherein: the iron core unit include the porose iron core unit and be located porose iron core unit that both sides pile up about the porose iron core unit, porose iron core unit for the basis of porose iron core unit increased around a plurality of axial positioning through-holes (104) of equipartition, positioning through-hole (104) are located the radial central line of tooth portion (102) to be located the hookup location of tooth portion (102) and yoke portion (101).

5. The wound core stator with the lead frame as claimed in claim 4, wherein: insulating skeleton (2) include skeleton and lower skeleton, outlet wire frame (203) and lead wire protection shield (5) locate on the skeleton, positioning claw (201) on last skeleton and lower skeleton the same distribution.

6. The wound core stator with the lead frame according to claim 5, wherein: and the upper framework and the lower framework are provided with positioning columns (207) which are embedded into the positioning through holes (104) of the iron core units with holes.

7. The wound core stator with a lead frame according to claim 1, wherein: the outside of bobbin be equipped with outer terminal board (205), the inboard of bobbin is equipped with inner terminal board (206), the outside of outer terminal board (205) be equipped with and protect line box (202), the end of coil (3) is located and is connected with lead wire (4) in protecting line box (202).

8. The wound core stator with a lead frame according to claim 7, wherein: lead protection board (5) be the sector plate, inboard arc is the same with the inner casing, the outside arc is the same with the outer casing, the outside of lead protection board (5) is equipped with a plurality of decurrent spacing risers (501) to locate the left and right sides of outlet frame (203) respectively, be equipped with a plurality of vertical card holes (502) that run through on lead protection board (5), outer casing (205) on be equipped with the card post that corresponds with card hole (502), lead protection board (5) are gone into card post location through card hole (502) card and are fixed, fixed back spacing riser (501) side direction pastes with outer casing (205) outside mutually.

9. The wound core stator with a lead frame according to claim 1, wherein: the insulating framework (2) is integrally formed by injection molding by taking the stator core (1) as an insert.

10. The wound core stator with the lead frame as claimed in claim 6, wherein: the number of the winding frames (112) is more than or equal to 9; the number of the positioning through holes (104) of each holed iron core unit is more than or equal to 3.