CN212811389U - Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit - Google Patents

Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit Download PDF

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Publication number
CN212811389U
CN212811389U CN202021657665.7U CN202021657665U CN212811389U CN 212811389 U CN212811389 U CN 212811389U CN 202021657665 U CN202021657665 U CN 202021657665U CN 212811389 U CN212811389 U CN 212811389U
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stator punching
punching sheet
sheet body
stator
curved edge
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王阳
邓程亮
陈晶晶
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Mc Motor Technology (shenzhen) Co ltd
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Mc Motor Technology (shenzhen) Co ltd
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Abstract

The utility model discloses a can optimize stator towards piece of magnetic circuit flux density, include: the stator punching sheet body is internally provided with a circular central hole; a spline including 24 pieces uniformly arranged in a circumferential direction of the circular center hole; the head end of the tooth groove is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body; the tail end of the tooth socket is provided with an opening penetrating to the circular central hole; the number of the welding grooves is 8, the welding grooves are uniformly arranged along the outer edge of the stator punching sheet body, and each welding groove is composed of a third curved edge and a fourth curved edge which are symmetrically arranged by taking the radial axis as a central point; the end parts of the two third curved edges positioned at two sides of the radial axis are connected and form an m-shaped groove protruding towards the center of the stator punching sheet body. The magnetic flux density of the magnetic circuit is optimized through the design of the number of the tooth grooves of the stator punching sheet and the design of the shape of the tooth grooves, so that the efficiency of the motor is improved, the vibration of the motor is reduced, and the performance of the motor is integrally improved.

Description

Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit
Technical Field
The utility model relates to the technical field of electric machines, in particular to can optimize stator towards piece of magnetic circuit flux density.
Background
The stator is a fixed part in the motor, a coil winding is embedded in the stator, the winding generates a rotary rotating magnetic field to push the rotor to rotate, generally, the motor stator is formed by laminating stator punching sheets, the magnetic flux density of the magnetic circuit of the stator punching sheets directly influences the efficiency of the motor, the vibration of the motor can be reduced due to good magnetic flux density, and the performance of the motor is improved, so that the structure of the stator punching sheets needs to be improved to optimize the magnetic flux density of the magnetic circuit.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses still another purpose provides a can optimize magnetic circuit magnetic density's stator punching, optimizes magnetic circuit magnetic density through the design to stator punching tooth groove number and the design to the tooth's socket shape, and then has increased motor efficiency and has reduced motor vibration for the motor performance has obtained holistic promotion.
In order to achieve these objects and other advantages in accordance with the present invention, there is provided a stator lamination capable of optimizing magnetic flux density, comprising:
the stator punching sheet body is internally provided with a circular central hole; the ratio of the diameter of the circular central hole to the diameter of the stator punching sheet body is 75 +/-0.03: 165-170;
tooth grooves which are arranged in 24 numbers; the 24 tooth sockets are uniformly arranged between the outer edge of the circular central hole and the outer edge of the stator punching sheet body along the circumferential direction of the circular central hole, and the included angle between the radial axes of the adjacent two tooth sockets passing through the center of the circular central hole is 14-16 degrees; each tooth groove comprises a head end and a tail end, and the head end of each tooth groove is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body; an opening penetrating to the circular central hole is formed in the tail end of the tooth socket; the ratio of the width of the opening to the diameter of the stator punching sheet body is 1.6-1.9: 165-170; the two ends of the opening are connected with the groove body of the tooth groove through a sharp head which is formed by overlapping a first curved edge and a second curved edge and has radian, the first curved edge is connected with the end part of the groove body close to the circular central hole, and the second curved edge is connected with the edge of the opening; the ratio of the length of the groove body to the diameter of the stator punching sheet body is 20-22: 165-170;
the number of the welding grooves is 8, the 8 welding grooves are uniformly distributed along the outer edge of the stator punching sheet body, and each welding groove is composed of a third curved edge and a fourth curved edge which are symmetrically distributed by taking the radial axis as a central point; the third curved edge and the fourth curved edge which are positioned on the same side of the radial axis are sequentially connected, the end parts of the two third curved edges positioned on the two sides of the radial axis are connected, and an m-shaped groove which protrudes towards the center of the stator punching sheet body is formed; the ratio of the width of an opening of the welding groove on the outer edge of the stator punching sheet body to the diameter of the stator punching sheet body is 6-7: 165-170.
Preferably, in the stator punching sheet capable of optimizing magnetic flux density of the magnetic circuit, the ratio of the radius of the head end of the tooth slot to the diameter of the stator punching sheet body is 5-6: 165 and 170 with the radian of 170-190 degrees.
Preferably, in the stator punching sheet capable of optimizing magnetic flux density of the magnetic circuit, the ratio of the radius of the first curved edge to the diameter of the stator punching sheet body is 0.45-0.55: 165-170, the ratio of the length of the straight line to the diameter of the stator punching sheet body is 0.5-0.7: 165-170; the ratio of the radius of the second curved edge to the diameter of the stator punching sheet body is 0.25-0.35: 165-170, the ratio of the length of the straight line to the diameter of the stator punching sheet body is 0.7-0.9: 165-170.
Preferably, in the stator punching sheet capable of optimizing magnetic flux density of the magnetic circuit, the ratio of the depth of the welding groove to the diameter of the stator punching sheet body is 1.3-1.5: 165-170.
Preferably, in the stator punching sheet capable of optimizing magnetic flux density of the magnetic circuit, the ratio of the width of the groove body connected with the first curved edge to the diameter of the stator punching sheet body is 5-7: 165-170.
Preferably, in the stator punching sheet capable of optimizing magnetic flux density of the magnetic circuit, an included angle between the center of the welding groove closest to the radial central line of the stator punching sheet body in the horizontal direction and the radial central line is 14-16 degrees among 8 welding grooves.
Preferably, in the stator punching sheet capable of optimizing the magnetic flux density of the magnetic circuit, the thickness of the stator punching sheet body is 0.1-1 mm.
The utility model discloses at least, include following beneficial effect:
the utility model discloses a can optimize stator towards piece of magnetic circuit flux density, through 24 tooth's grooves of equipartition on the stator towards piece body to at stator towards piece body outer fringe 8 welding grooves of equipartition, and confirmed the concrete parameter in tooth's groove and welding groove, including shape, size, position etc. can optimize magnetic circuit flux density, and then has increased motor efficiency and has reduced motor vibration, makes the motor performance obtain holistic promotion.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a stator lamination capable of optimizing magnetic flux density of a magnetic circuit according to the present invention;
fig. 2 is a schematic structural diagram of a tooth slot of a stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit according to the present invention;
fig. 3 is a schematic structural diagram of a welding groove of a stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-3, the utility model provides a can optimize stator punching of magnetic circuit flux density, include: the stator punching sheet comprises a stator punching sheet body 100, wherein a circular central hole 101 is formed in the stator punching sheet body; the ratio of the diameter of the circular central hole 101 to the diameter of the stator punching sheet body 100 is 75 +/-0.03: 165-170;
tooth grooves 200 provided in 24 number; the 24 tooth sockets 200 are uniformly arranged between the outer edge of the circular central hole 101 and the outer edge of the stator punching sheet body 100 along the circumferential direction of the circular central hole 101, and an included angle between radial axes of every two adjacent tooth sockets 200 passing through the center of the circular central hole 101 is 14-16 degrees; each tooth slot 200 comprises a head end 201 and a tail end 202, and the head end 201 of each tooth slot 200 is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body 100; the tail end 202 of the tooth socket 200 is provided with an opening 203 penetrating to the circular central hole 101; the ratio of the width of the opening 203 to the diameter of the stator punching sheet body 100 is 1.6-1.9: 165-170; the two ends of the opening 203 are connected with the slot body 206 of the tooth slot 200 through a sharp head with radian formed by overlapping a first curved edge 204 and a second curved edge 205, the first curved edge 204 is connected with the end part of the slot body 206 close to the circular central hole 101, and the second curved edge 205 is connected with the edge of the opening 203; the ratio of the length of the groove body 206 to the diameter of the stator punching sheet body 100 is 20-22: 165-170;
the number of the welding grooves 300 is 8, the 8 welding grooves 300 are uniformly arranged along the outer edge of the stator punching sheet body 100, and each welding groove 300 is composed of a third curved edge 301 and a fourth curved edge 302 which are symmetrically arranged by taking the radial axis as a central point; the third curved edge 301 and the fourth curved edge 302 which are positioned on the same side of the radial axis are sequentially connected, the end parts of the two third curved edges 301 which are positioned on the two sides of the radial axis are connected, and an m-shaped groove which protrudes towards the center of the stator punching sheet body 100 is formed; the ratio of the width of the opening of the welding groove 300 on the outer edge of the stator punching sheet body 100 to the diameter of the stator punching sheet body 100 is 6-7: 165-170.
In a preferred scheme, the ratio of the radius of the head end of the tooth slot 200 to the diameter of the stator punching sheet body 100 is 5-6: 165 and 170 with the radian of 170-190 degrees.
In a preferred embodiment, the ratio of the radius of the first curved edge 204 to the diameter of the stator punching body 100 is 0.45-0.55: 165-170, the ratio of the length of the straight line to the diameter of the stator punching sheet body 100 is 0.5-0.7: 165-170; the ratio of the radius of the second curved edge 205 to the diameter of the stator punching sheet body 100 is 0.25-0.35: 165-170, the ratio of the length of the straight line to the diameter of the stator punching sheet body 100 is 0.7-0.9: 165-170.
In a preferred scheme, the ratio of the depth of the welding groove 300 to the diameter of the stator punching body 100 is 1.3-1.5: 165-170.
In a preferable scheme, the ratio of the width of the groove body 206 connected to the first curved edge 204 to the diameter of the stator punching body 100 is 5-7: 165-170.
In a preferred embodiment, an included angle between the center of the welding groove 300 closest to the radial center line of the stator punching body 100 in the horizontal direction among the 8 welding grooves 300 and the radial center line is 14 to 16 °.
In a preferred scheme, the thickness of the stator punching sheet body 100 is 0.1-1 mm.
Example 1
A stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit comprises: the stator punching sheet comprises a stator punching sheet body 100, a stator punching sheet body and a stator, wherein the stator punching sheet body is in a ring shape with the diameter of 168mm, the thickness of the stator punching sheet body is 0.5mm, and a circular central hole 101 is formed in the stator punching sheet body; the diameter of the circular central hole 101 is 75 mm;
tooth grooves 200 provided in 24 number; the 24 tooth sockets 200 are uniformly arranged between the outer edge of the circular central hole 101 and the outer edge of the stator punching sheet body 100 along the circumferential direction of the circular central hole 101, and an included angle between radial axes of every two adjacent tooth sockets 200 passing through the center of the circular central hole 101 is 15 degrees; each tooth slot 200 comprises a head end 201 and a tail end 202, and the head end 201 of each tooth slot 200 is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body 100; the radius of the head end of the tooth socket 200 is 5.5mm, and the radian is 180 degrees; the tail end 202 of the tooth socket 200 is provided with an opening 203 penetrating to the circular central hole 101; the width of the opening 203 is 1.84 mm; the two ends of the opening 203 are connected with the slot body 206 of the tooth slot 200 through a sharp head with radian formed by overlapping a first curved edge 204 and a second curved edge 205, the first curved edge 204 is connected with the end part of the slot body 206 close to the circular central hole 101, and the second curved edge 205 is connected with the edge of the opening 203; the radius of the first curved edge 204 is 0.5mm, and the length of the straight line is 0.6 mm; the radius of the second curved edge 205 is 0.3mm, and the length of the straight line is 0.8 mm; the length of the groove body 206 is 21.4 mm; the width of the groove body 206 at the position where the first curved edge 204 is connected is 6 mm;
the number of the welding grooves 300 is 8, the 8 welding grooves 300 are uniformly arranged along the outer edge of the stator punching sheet body 100, and each welding groove 300 is composed of a third curved edge 301 and a fourth curved edge 302 which are symmetrically arranged by taking the radial axis as a central point; an included angle between the center of the welding groove 300 closest to the radial center line of the stator punching sheet body 100 in the 8 welding grooves 300 in the horizontal direction and the radial center line is 15 degrees; the third curved edge 301 and the fourth curved edge 302 which are positioned on the same side of the radial axis are sequentially connected, the end parts of the two third curved edges 301 which are positioned on the two sides of the radial axis are connected, and an m-shaped groove which protrudes towards the center of the stator punching sheet body 100 is formed; the width of the opening of the welding groove 300 on the outer edge of the stator punching sheet body 100 is 6.5 mm; the depth of the welding groove 300 is 1.4 mm.
Example 2
A stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit comprises: the stator punching sheet comprises a stator punching sheet body 100, a stator punching sheet body and a stator punching sheet, wherein the stator punching sheet body is in a ring shape with the diameter of 165mm, the thickness of the stator punching sheet body is 0.1mm, and a circular central hole 101 is formed in the stator punching sheet body; the diameter of the circular central hole 101 is 74.97 mm;
tooth grooves 200 provided in 24 number; the 24 tooth sockets 200 are uniformly arranged between the outer edge of the circular central hole 101 and the outer edge of the stator punching sheet body 100 along the circumferential direction of the circular central hole 101, and an included angle between radial axes of every two adjacent tooth sockets 200 passing through the center of the circular central hole 101 is 14 degrees; each tooth slot 200 comprises a head end 201 and a tail end 202, and the head end 201 of each tooth slot 200 is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body 100; the radius of the head end of the tooth socket 200 is 5mm, and the radian is 170 degrees; the tail end 202 of the tooth socket 200 is provided with an opening 203 penetrating to the circular central hole 101; the width of the opening 203 is 1.6 mm; the two ends of the opening 203 are connected with the slot body 206 of the tooth slot 200 through a sharp head with radian formed by overlapping a first curved edge 204 and a second curved edge 205, the first curved edge 204 is connected with the end part of the slot body 206 close to the circular central hole 101, and the second curved edge 205 is connected with the edge of the opening 203; the radius of the first curved edge 204 is 0.45mm, and the length of the straight line is 0.5 mm; the radius of the second curved edge 205 is 0.25mm, and the length of the straight line is 0.7 mm; the length of the groove body 206 is 20 mm; the width of the groove body 206 at the position where the first curved edge 204 is connected is 5 mm;
the number of the welding grooves 300 is 8, the 8 welding grooves 300 are uniformly arranged along the outer edge of the stator punching sheet body 100, and each welding groove 300 is composed of a third curved edge 301 and a fourth curved edge 302 which are symmetrically arranged by taking the radial axis as a central point; an included angle between the center of the welding groove 300 closest to the radial center line of the stator punching sheet body 100 in the 8 welding grooves 300 in the horizontal direction and the radial center line is 14 degrees; the third curved edge 301 and the fourth curved edge 302 which are positioned on the same side of the radial axis are sequentially connected, the end parts of the two third curved edges 301 which are positioned on the two sides of the radial axis are connected, and an m-shaped groove which protrudes towards the center of the stator punching sheet body 100 is formed; the width of the opening of the welding groove 300 on the outer edge of the stator punching sheet body 100 is 6 mm; the depth of the welding groove 300 is 1.3 mm.
Example 3
A stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit comprises: the stator punching sheet comprises a stator punching sheet body 100, a stator punching sheet body and a stator core, wherein the stator punching sheet body is in a ring shape with the diameter of 170mm, the thickness of the stator punching sheet body is 1mm, and a circular central hole 101 is formed in the stator punching sheet body; the diameter of the circular central hole 101 is 75.03 mm;
tooth grooves 200 provided in 24 number; the 24 tooth sockets 200 are uniformly arranged between the outer edge of the circular central hole 101 and the outer edge of the stator punching sheet body 100 along the circumferential direction of the circular central hole 101, and an included angle formed by every two adjacent tooth sockets 200 passing through the radial axis of the center of the circular central hole 101 is 16 degrees; each tooth slot 200 comprises a head end 201 and a tail end 202, and the head end 201 of each tooth slot 200 is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body 100; the radius of the head end of the tooth socket 200 is 6mm, and the radian is 190 degrees; the tail end 202 of the tooth socket 200 is provided with an opening 203 penetrating to the circular central hole 101; the width of the opening 203 is 1.9 mm; the two ends of the opening 203 are connected with the slot body 206 of the tooth slot 200 through a sharp head with radian formed by overlapping a first curved edge 204 and a second curved edge 205, the first curved edge 204 is connected with the end part of the slot body 206 close to the circular central hole 101, and the second curved edge 205 is connected with the edge of the opening 203; the radius of the first curved edge 204 is 0.55mm, and the length of the straight line is 0.7 mm; the radius of the second curved edge 205 is 0.35mm, and the length of the straight line is 0.9 mm; the length of the groove body 206 is 22 mm; the width of the groove body 206 at the position where the first curved edge 204 is connected is 7 mm;
the number of the welding grooves 300 is 8, the 8 welding grooves 300 are uniformly arranged along the outer edge of the stator punching sheet body 100, and each welding groove 300 is composed of a third curved edge 301 and a fourth curved edge 302 which are symmetrically arranged by taking the radial axis as a central point; an included angle between the center of the welding groove 300 closest to the radial center line of the stator punching body 100 in the horizontal direction and the radial center line is 16 degrees among the 8 welding grooves 300; the third curved edge 301 and the fourth curved edge 302 which are positioned on the same side of the radial axis are sequentially connected, the end parts of the two third curved edges 301 which are positioned on the two sides of the radial axis are connected, and an m-shaped groove which protrudes towards the center of the stator punching sheet body 100 is formed; the width of the opening of the welding groove 300 on the outer edge of the stator punching sheet body 100 is 7 mm; the depth of the welding groove 300 is 1.5 mm.
The utility model discloses not limited to above concrete numerical value and limited, the scaling according to above-mentioned numerical value all is within the scope of protection of the utility model.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (7)

1. The utility model provides a can optimize stator punching of magnetic circuit flux density which characterized in that includes:
the stator punching sheet body is internally provided with a circular central hole; the ratio of the diameter of the circular central hole to the diameter of the stator punching sheet body is 75 +/-0.03: 165-170;
tooth grooves which are arranged in 24 numbers; the 24 tooth sockets are uniformly arranged between the outer edge of the circular central hole and the outer edge of the stator punching sheet body along the circumferential direction of the circular central hole, and the included angle between the radial axes of the adjacent two tooth sockets passing through the center of the circular central hole is 14-16 degrees; each tooth groove comprises a head end and a tail end, and the head end of each tooth groove is in a semi-arc shape arranged close to the outer edge of the stator punching sheet body; an opening penetrating to the circular central hole is formed in the tail end of the tooth socket; the ratio of the width of the opening to the diameter of the stator punching sheet body is 1.6-1.9: 165-170; the two ends of the opening are connected with the groove body of the tooth groove through a sharp head which is formed by overlapping a first curved edge and a second curved edge and has radian, the first curved edge is connected with the end part of the groove body close to the circular central hole, and the second curved edge is connected with the edge of the opening; the ratio of the length of the groove body to the diameter of the stator punching sheet body is 20-22: 165-170;
the number of the welding grooves is 8, the 8 welding grooves are uniformly distributed along the outer edge of the stator punching sheet body, and each welding groove is composed of a third curved edge and a fourth curved edge which are symmetrically distributed by taking the radial axis as a central point; the third curved edge and the fourth curved edge which are positioned on the same side of the radial axis are sequentially connected, the end parts of the two third curved edges positioned on the two sides of the radial axis are connected, and an m-shaped groove which protrudes towards the center of the stator punching sheet body is formed; the ratio of the width of an opening of the welding groove on the outer edge of the stator punching sheet body to the diameter of the stator punching sheet body is 6-7: 165-170.
2. The stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit according to claim 1, wherein the ratio of the radius of the head end of the tooth slot to the diameter of the stator punching sheet body is 5-6: 165 and 170 with the radian of 170-190 degrees.
3. The stator lamination capable of optimizing magnetic flux density of a magnetic circuit according to claim 1, wherein the ratio of the radius of the first curved edge to the diameter of the stator lamination body is 0.45-0.55: 165-170, the ratio of the length of the straight line to the diameter of the stator punching sheet body is 0.5-0.7: 165-170; the ratio of the radius of the second curved edge to the diameter of the stator punching sheet body is 0.25-0.35: 165-170, the ratio of the length of the straight line to the diameter of the stator punching sheet body is 0.7-0.9: 165-170.
4. The stator lamination capable of optimizing the magnetic flux density of a magnetic circuit according to claim 1, wherein the ratio of the depth of the welding groove to the diameter of the stator lamination body is 1.3-1.5: 165-170.
5. The stator punching sheet capable of optimizing magnetic flux density of a magnetic circuit according to claim 1, wherein the ratio of the width of the groove body connecting the first curved edge to the diameter of the stator punching sheet body is 5-7: 165-170.
6. The stator lamination capable of optimizing the magnetic flux density of a magnetic circuit according to claim 1, wherein the included angle between the center of the welding groove closest to the radial center line of the stator lamination body in the horizontal direction and the radial center line is 14-16 degrees among 8 welding grooves.
7. The stator lamination capable of optimizing the magnetic flux density of a magnetic circuit according to claim 1, wherein the thickness of the stator lamination body is 0.1-1 mm.
CN202021657665.7U 2020-08-11 2020-08-11 Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit Active CN212811389U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021657665.7U CN212811389U (en) 2020-08-11 2020-08-11 Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021657665.7U CN212811389U (en) 2020-08-11 2020-08-11 Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit

Publications (1)

Publication Number Publication Date
CN212811389U true CN212811389U (en) 2021-03-26

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ID=75082546

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021657665.7U Active CN212811389U (en) 2020-08-11 2020-08-11 Stator punching sheet capable of optimizing magnetic flux density of magnetic circuit

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Country Link
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