CN217642889U

CN217642889U - Stator core

Info

Publication number: CN217642889U
Application number: CN202221197587.6U
Authority: CN
Inventors: 杜代生
Original assignee: Zhuhai Jitian Precision Plastic Mould Co ltd
Current assignee: Zhuhai Jitian Precision Plastic Mould Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-21
Anticipated expiration: 2032-05-18

Abstract

The utility model discloses a stator core, include: the iron core body is arranged to be annular; the supporting shoe, be provided with a plurality ofly, supporting shoe and iron core body integrated into one piece, the supporting shoe sets up on iron core body's internal perisporium, a plurality of supporting shoes are along iron core body's circumference evenly distributed, the supporting shoe is protruding to stretch to iron core body's inner chamber, the free end of supporting shoe is provided with the pterygoid lamina, polylith pterygoid lamina centers on being circular, circular and iron core body coaxial line, be provided with the wire winding groove between two adjacent pterygoid laminas, the supporting shoe is used for cup jointing bobbin, the wire winding groove is used for passing through the wire, make the wire coiling on bobbin, set up iron core body and supporting shoe into integrated into one piece, in manufacturing, iron core body can once only stamping forming come out, bobbin 230 can once only injection moulding on iron core body 100's supporting shoe 200, the step of installation bobbin 230 has been removed from, if injection moulding bobbin 230 earlier, then need install once more.

Description

Stator core

Technical Field

The utility model relates to a motor stator technical field, in particular to stator core.

Background

The stator core is a necessary part on the motor and comprises a core body and a supporting block, and a coil needs to be wound on the supporting block.

The former stator core is composed of a plurality of split cores, namely a nail core similar to CN113746222A, so that the distance between the supporting blocks is conveniently enlarged, and automatic winding is convenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a stator core, iron core body and supporting shoe integrated into one piece, it is convenient to make, and current high accuracy winding machine can wind the supporting shoe, has removed the process of the components of a whole that can function independently iron core of equipment in the past from, improves production efficiency.

According to the utility model discloses a stator core of first aspect embodiment includes: the iron core body is arranged to be annular; the supporting shoe is provided with a plurality ofly, the supporting shoe with iron core body integrated into one piece, the supporting shoe sets up on iron core body's the internal perisporium, and is a plurality of the supporting shoe is followed iron core body's circumference evenly distributed, the supporting shoe to the protruding stretching of iron core body's inner chamber, the free end of supporting shoe is provided with the pterygoid lamina, polylith the pterygoid lamina centers on being circular, circular with iron core body coaxial line, adjacent two be provided with the wire winding groove between the pterygoid lamina, the supporting shoe is used for cup jointing wire winding skeleton, the wire winding groove is used for through the wire, makes the wire coiling be in on the wire winding skeleton.

According to the utility model discloses stator core has following beneficial effect at least: the iron core body and the supporting block are integrally formed, and can be integrally manufactured in the manufacturing process and formed by one-time punch forming, so that a complex structure is omitted, and the manufacturing is more convenient; in addition, the wing plates can embrace the rotor of the motor, the axis of the rotor of the motor can be the same as that of the iron core body, and excessive vibration of the rotor during rotation is avoided; integrated into one piece's stator core wire winding groove makes wire 240 pass, then the coiling is in on the wire winding skeleton of supporting shoe, under the unchangeable condition of original winding time, removed the step of assembling stator core from, production efficiency is higher.

According to some embodiments of the present invention, the width of the winding slot is between 0.7mm-1.2mm, so that the wound coil is not easily detached from the winding slot.

According to some embodiments of the utility model, the inboard of pterygoid lamina is provided with the profile modeling cambered surface, and is a plurality of the columniform rotation chamber is constituteed to the profile modeling cambered surface, and the rotor of motor can be held in rotating the chamber.

According to the utility model discloses a some embodiments, be provided with outer draw-in groove on iron core body's the periphery wall, outer draw-in groove be used for with motor housing in the card strip looks joint.

According to the utility model discloses a some embodiments, the outer draw-in groove that links sets up to semi-cylindrical, guarantees to laminate completely with the card strip in the motor housing, and the contact surface is bigger.

According to the utility model discloses a some embodiments, the terminal surface of iron core body with all be provided with anti-skidding groove on the terminal surface of supporting shoe, anti-skidding groove is used for preventing bobbin is not hard up.

According to some embodiments of the utility model, the terminal surface of iron core body with the terminal surface parallel and level of supporting shoe, reinforcing the structural strength of supporting shoe.

According to some embodiments of the present invention, the width of the support block is between 3mm-3.03mm, and the support block has a high structural strength and is not easily broken or cracked.

According to the utility model discloses a some embodiments, adjacent two the contained angle of supporting shoe is 60, the supporting shoe can be six by the equipartition, reinforcing stator core's performance.

According to some embodiments of the utility model, the supporting shoe with the junction of iron core body is provided with fillet structure, avoids the supporting shoe splits from the junction.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a stator core combined with a bobbin and a wire according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural view of the stator core shown in fig. 1;

fig. 4 is a plan view of the stator core shown in fig. 1.

The iron core body 100 is connected with a slot 110;

the supporting block 200, the wing plate 210, the winding groove 220, the winding framework 230, the lead 240 and the profiling cambered surface 211;

anti-slip groove 300, fillet configuration 400.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, a stator core includes: an iron core body 100 provided in a ring shape; the supporting blocks 200 are arranged, the supporting blocks 200 and the iron core body 100 are integrally formed, the supporting blocks 200 are arranged on the inner peripheral wall of the iron core body 100, the supporting blocks 200 are uniformly distributed along the circumferential direction of the iron core body 100, the supporting blocks 200 protrude towards the inner cavity of the iron core body 100, the free ends of the supporting blocks 200 are provided with wing plates 210, the plurality of wing plates 210 are circular, the circle is coaxial with the iron core body 100, a winding groove 220 is formed between every two adjacent wing plates 210, the supporting blocks 200 are used for being sleeved with a winding framework 230, the winding groove 220 is used for enabling a wire 240 to be wound on the winding framework 230 through the wire 240, the iron core body 100 and the supporting blocks 200 are integrally formed, in the manufacturing process, the iron core body 100 can be formed through one-step stamping, the winding framework 230 can be formed on the inner side of the iron core body 100 through one-step injection molding, the step of installing the winding framework 230 is omitted, namely, if the winding framework 230 is formed through injection molding, one-step is needed; the integrally formed iron core body 100 avoids a complex structure, and is more convenient to manufacture; in addition, the plurality of wing plates 210 can embrace the rotor of the motor, and the axis of the rotor of the motor can be the same as that of the iron core body 100, so that excessive vibration of the rotor during rotation is avoided; integrated into one piece's stator core makes wire 240 pass at winding groove 220, then the coiling is on the bobbin 230 of supporting shoe 200, under the unchangeable condition of original winding time, has removed the step of assembling stator core from, and production efficiency is higher.

In some embodiments, the width of the winding slot 220 is between 0.7mm and 1.2mm, so that the wound coil is not easily detached from the winding slot 220. It can be understood that, on the original split stator core, the width of the winding slot 220 can be changed along with the opening and closing of the supporting block 200, which easily causes the problem of wire hanging because the width of the winding slot 220 is not equal to or wider than the preset value.

In some embodiments, the inner side of the wing plate 210 is provided with a contoured arc surface 211, and a plurality of contoured arc surfaces 211 form a cylindrical rotating cavity in which a rotor of an electric motor can be received.

In some embodiments, the outer circumferential wall of the core body 100 is provided with an external connection slot 110, the external connection slot 110 is used for being connected with a clamping strip in a motor housing in a clamping manner, it is to be noted that the motor has a housing, the stator is arranged in the housing, and the clamping strip is arranged in the inner wall of the housing.

In some embodiments, the slots 110 are semi-cylindrical to ensure a full fit with the strips inside the motor housing and a larger contact surface.

In some embodiments, the end surfaces of the core body 100 and the support block 200 are provided with anti-slip grooves 300, the anti-slip grooves 300 are used for preventing the bobbin 230 from loosening, and in addition, the anti-slip grooves 300 can be used for accommodating glue to bond the bobbin 230; the anti-slip groove 300 is an arc-shaped anti-slip groove, and is defined by two adjacent supporting blocks 200, two anti-slip grooves 300 are arranged in the region of the core body 100 defined by the two adjacent supporting blocks 200, and one anti-slip groove 300 is arranged on the end surface of each supporting block 200, so that when the bobbin 230 is injection-molded, the anti-slip grooves 300 can play a role in fixing injection-molded materials.

In some embodiments, the end surfaces of the core body 100 and the support block 200 are flush, enhancing the structural strength of the support block 200. It is understood that the end surfaces refer to upper and lower end surfaces of the core body 100 and the support block 200.

In some embodiments, the support block 200 has a width of between 3mm and 3.03mm, and the support block 200 has a high structural strength and does not easily break or crack.

In some embodiments, the included angle between two adjacent supporting blocks 200 is 60 °, and six supporting blocks 200 may be uniformly distributed, so as to enhance the performance of the stator core, i.e., the performance of driving the rotor to rotate.

In some embodiments, the joint of the support block 200 and the core body 100 is provided with a fillet structure 400 to prevent the support block 200 from being cracked from the joint.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A stator core, comprising:

the iron core body is arranged to be annular;

the supporting shoe is provided with a plurality ofly, the supporting shoe with iron core body integrated into one piece, the supporting shoe sets up on the internal perisporium of iron core body, and is a plurality of the supporting shoe is followed iron core body's circumference evenly distributed, the supporting shoe to iron core body's the protruding extension of inner chamber, the free end of supporting shoe is provided with the pterygoid lamina, and the polylith the pterygoid lamina is around being circular, circular with iron core body coaxial line, adjacent two be provided with the wire winding groove between the pterygoid lamina, the supporting shoe is used for cup jointing the wire winding skeleton, the wire winding groove is used for through the wire, makes the wire coiling be in on the wire winding skeleton.

2. A stator core according to claim 1, characterized in that: the width of the winding groove is 0.7mm-1.2 mm.

3. A stator core according to claim 1, characterized in that: the inner side of the wing plate is provided with a profiling cambered surface.

4. A stator core according to claim 1, characterized in that: the iron core comprises an iron core body and is characterized in that an outer connecting clamping groove is formed in the peripheral wall of the iron core body and used for being connected with a clamping strip in a motor shell in a clamped mode.

5. A stator core according to claim 4, characterized in that: the external connecting clamping groove is semi-cylindrical.

6. A stator core according to any one of claims 1 to 5, wherein: and the end surfaces of the iron core body and the supporting block are provided with anti-slip grooves, and the anti-slip grooves are used for preventing the winding framework from loosening.

7. A stator core according to claim 6, characterized in that: the end face of the iron core body is flush with the end face of the supporting block.

8. A stator core according to claim 1, characterized in that: the width of the supporting block is between 3mm and 3.03 mm.

9. A stator core according to claim 1, characterized in that: the included angle of two adjacent supporting blocks is 60 degrees.

10. A stator core according to claim 1, characterized in that: and a fillet structure is arranged at the joint of the supporting block and the iron core body.