CN217469584U - Stator and rotor punching sheet for motor - Google Patents
Stator and rotor punching sheet for motor Download PDFInfo
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- CN217469584U CN217469584U CN202221400445.5U CN202221400445U CN217469584U CN 217469584 U CN217469584 U CN 217469584U CN 202221400445 U CN202221400445 U CN 202221400445U CN 217469584 U CN217469584 U CN 217469584U
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- punching sheet
- motor
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Abstract
The utility model belongs to the technical field of the motor accessory technique and specifically relates to a stator-rotor punching sheet for motor is related to, including stator punching sheet and rotor punching sheet, the rotor punching sheet has set gradually rotor centre bore, louvre and magnet steel groove from inside to outside, has seted up rectangular channel and rotor positioning groove on the rotor centre bore, is provided with circular arc transition portion between the both sides of rectangular channel and the rotor centre bore, and the louvre is located between rotor centre bore and the magnet steel groove, and the magnet steel groove is rectangle or polygonized structure, and the crossing angle of the central axis's of two adjacent magnet steel grooves extension line is 45. The utility model has the advantages of simple and reasonable structure, the stable performance, in long-term use, electromagnetic noise is little, the radiating effect is good and motor work efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of motor accessory technique and specifically relates to a stator-rotor punching that motor was used is related to.
Background
At present, motors are widely applied to the fields of industry, agriculture, commerce, building industry, traffic and the like, the defects of low efficiency, high energy consumption and the like generally exist, and the requirements of high efficiency, energy conservation and emission reduction cannot be met.
The motor is formed by a stator formed by laminating a plurality of stator punching sheets and a rotor formed by laminating a plurality of rotor punching sheets, the stator punching sheets and the rotor punching sheets are key parts of the motor, and the material, the inner circle size, the outer circle size, the groove shape size and the like of the stator punching sheets have direct influence on the energy consumption, the working efficiency, the noise and the service life of the motor.
In the existing motor used in the market, due to the unreasonable structure of the stator and rotor punching sheet, the operation parameter indexes of the motor are affected, so that the purpose of improving the motor efficiency cannot be achieved by the stator and rotor punching sheet, and the defects of poor heat dissipation effect and low efficiency are found in the long-term use process.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defect who proposes among the above-mentioned background art, the utility model aims at providing a stator-rotor punching for motor, simple structure is reasonable, and the stable performance, in long-term use, little, the radiating effect of electromagnetic noise is fine and motor work efficiency is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a stator-rotor punching for motor, includes stator punching and rotor punching, rotor punching has set gradually rotor centre bore, louvre and magnet steel groove from inside to outside, has seted up rectangular channel and rotor positioning groove on the rotor centre bore, is provided with circular arc transition portion between the both sides of rectangular channel and the rotor centre bore, and the louvre is located between rotor centre bore and the magnet steel groove, and the magnet steel groove is rectangle or polygon structure, and the crossing angle of the central axis's of two adjacent magnet steel grooves extension line is 45.
By adopting the technical scheme, the central hole of the rotor is used for inserting the rotating shaft, and the rectangular groove and the rotor positioning groove are used for fixing the rotor on the rotating shaft and bearing the torque of the rotor so as to enable the rotor and the rotating shaft to move together; the circular arc transition part avoids abrasion of the sharp edge to the pin key when the pin key on the rectangular groove and the rotating shaft are displaced relatively, and reduces noise when the pin key and the rectangular groove slide mutually, so that assembly is smooth.
Preferably, 8 heat dissipation holes and 8 magnetic steel grooves are formed in the rotor punching sheet, the peripheries of the heat dissipation holes are distributed on the rotor punching sheet, the cross sections of the heat dissipation holes are of triangular structures, each corner of each triangle is set to be a fillet, and a rotor positioning hole is formed between every two adjacent heat dissipation holes.
Through adopting above-mentioned technical scheme, the louvre can accelerate the heat that produces when the rotor punching is rotatory, and the structure in magnetic steel groove can guarantee that the magnetic circuit is balanced, effectively prevents the magnetic flux density supersaturation to the motor temperature rise is low, has prolonged the life of motor.
Preferably, the magnetic steel groove is provided with a semicircular bulge and an oblique tooth part, the joint of the semicircular bulge and the oblique tooth part is in a ladder shape, and the two semicircular bulges and the two oblique tooth parts are symmetrically arranged at two ends of the magnetic steel groove.
Through adopting above-mentioned technical scheme, the semi-circular arch and the skewed tooth portion at magnet steel groove both ends have further improved the structural strength of high-speed rotor punching, guarantee that this rotor punching operates stably when reaching the rotational speed more than 20000rpm, indeformable to the motor performance is good, stable in structure.
Preferably, the outer peripheral profile of the stator punching sheet is of a circular structure, a plurality of heat dissipation grooves are uniformly formed in the outer peripheral profile, 36 stator winding grooves distributed circumferentially are formed in the inner profile of the stator punching sheet, and a stator winding portion with a T-shaped vertical section is arranged between every two adjacent stator winding grooves.
By adopting the technical scheme, the structure of the stator winding slot on the stator punching sheet is matched with the stator winding part of the T-shaped structure, so that the magnetic density of the stator winding part is reduced, the magnetic field distribution is more uniform, and the working efficiency of the motor is higher.
Preferably, one end of the stator winding slot close to the outer contour is arc-shaped, the inner diameter of the stator winding slot is gradually reduced along the direction of the axis of the stator punching sheet, a structure with a wide top end and a narrow bottom end is formed, and a connection part of the notch of the stator winding slot and the stator winding part is set as an arc transition surface.
Through adopting above-mentioned technical scheme, stator wire winding groove adopts the structure that the wide lower extreme of upper end is narrow, and the density of magnetic flux when better reduction coil was wound for the wire winding effect is better.
Preferably, the number of the heat dissipation grooves is 6, two side walls of each heat dissipation groove are inclined inwards to form a barb-shaped structure, a stator positioning groove is arranged in one heat dissipation groove, and the vertical section of each stator positioning groove is of a semicircular arc-shaped structure.
Through adopting above-mentioned technical scheme, the radiating groove can accelerate to give off the stator and towards the heat that the during operation produced, sets up a plurality of radiating grooves and further increases its radiating efficiency.
Preferably, the peripheral profile of the stator punching sheet is further provided with at least one arc depressed part, and the radius of the arc depressed part is 1.5 mm.
By adopting the technical scheme, the arc concave part is used for positioning the stator punching sheet and the rotor punching sheet when being matched.
To sum up, the beneficial effects of the utility model are that:
1. the utility model provides a magnetic steel groove structure on the rotor punching can guarantee magnetic circuit balance, effectively prevents the magnetic flux density supersaturation to the motor temperature rise is low, and the semi-circular arch and the skewed tooth portion at magnetic steel groove both ends have further improved the structural strength of high-speed rotor punching simultaneously, guarantee that this rotor punching operates stably when reaching the rotational speed more than 20000rpm, indeformable, make motor good performance, stable in structure.
2. The stator winding slot structure on the stator punching sheet of the utility model is matched with the stator winding part with the T-shaped structure, thus reducing the magnetic density of the stator winding part, leading the magnetic field distribution to be more uniform and leading the working efficiency of the motor to be higher; and set up a plurality of radiating grooves, promote the radiating effect of motor to the life of motor has been prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a rotor sheet of the present invention;
FIG. 2 is an enlarged view of the rotor sheet of the present invention at the position I;
FIG. 3 is an enlarged view of the rotor sheet of the present invention at position II;
fig. 4 is an enlarged view of the rotor sheet of the present invention at position iii;
FIG. 5 is an enlarged view of the rotor sheet of the present invention at the position IV;
fig. 6 is a schematic structural diagram of the stator punching sheet of the present invention;
FIG. 7 is an enlarged view of the stator lamination II of the present invention;
fig. 8 is an enlarged view of the stator punching sheet of the present invention at the position of i.
The reference numerals in the figures illustrate:
1. stator punching sheets; 2. rotor punching sheets; 3. a heat sink; 31. a stator positioning groove; 4. a stator winding slot; 5. a stator winding portion; 6. a circular arc recess; 7. a rotor center hole; 71. a rectangular groove; 72. a rotor positioning groove; 8. heat dissipation holes; 9. a magnetic steel groove; 91. a semicircular bulge; 92. a helical tooth portion; 10. and (6) positioning a rotor hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.
The utility model provides a stator-rotor punching sheet for motor, as shown in fig. 6 and fig. 8, including stator punching sheet 1 and rotor punching sheet 2, the periphery profile of stator punching sheet 1 is circular structure, the diameter of stator punching sheet 1 is 175mm, and evenly be provided with a plurality of radiating grooves 3 on the periphery profile, radiating grooves 3 are provided with 6, and 3 both sides wall leanin of radiating grooves is in order to form the barb shape structure, the 3 bottom length of radiating grooves is 12mm, the degree of depth is 2.2mm, the both sides wall of its slope all establishes to the fillet that the radius is 0.5mm with the bottom, stator positioning groove 31 is located one of 6 radiating grooves 3, and stator positioning groove 31's vertical cross-section is half circular arc structure, stator positioning groove 31's radius is 1.5mm, radiating grooves 3 can accelerate the heat that gives off stator 1 and produce at the during operation, and set up a plurality of radiating grooves 3 and can further strengthen its radiating efficiency.
In order to make the magnetic field distribution more uniform, 36 stator winding slots 4 distributed circumferentially are formed in the inner contour of the stator punching sheet 1, a stator winding part 5 with a T-shaped vertical section is arranged between every two adjacent stator winding slots 4, and the structure of the stator winding slots 4 on the stator punching sheet 1 is matched with the stator winding part 5 with the T-shaped structure, so that the magnetic density of the stator winding part 5 is reduced, the magnetic field distribution is more uniform, and the working efficiency of the motor is higher.
In the present embodiment, as shown in fig. 7, one end of the stator winding slot 4 close to the outer contour is arc-shaped, and the inner diameter of the stator winding slot 4 gradually decreases along the direction of the axis of the stator lamination 1, so as to form a structure with a wide top end and a narrow bottom end, and the connection between the notch of the stator winding slot 4 and the stator winding portion 5 is an arc transition surface.
Specifically, the depth of the stator winding slot 4 is 46.58mm, the peripheral profile of the stator punching sheet 1 is also provided with at least one arc depressed part 6, and the radius of the arc depressed part 6 is 1.5 mm; the arc radius of stator wire winding groove 4 is 3.7mm, and the notch is 2.2mm wide, and its bottom narrowest department is 4.8mm, is equipped with the fillet that the radius is 0.5mm between notch and the stator wire winding portion 5, and stator wire winding groove 4 adopts the narrow structure of wide lower extreme in upper end, and the density of magnetic flux when better reduction coil was wound for the wire winding effect is better.
As shown in fig. 1 and 2, the rotor punching sheet 2 is sequentially provided with a rotor central hole 7, heat dissipation holes 8 and a magnetic steel groove 9 from inside to outside, a rectangular groove 71 and a rotor positioning groove 72 are formed in the rotor central hole 7, arc transition portions are arranged between two sides of the rectangular groove 71 and the rotor central hole 7, the heat dissipation holes 8 are located between the rotor central hole 7 and the magnetic steel groove 9, the magnetic steel groove 9 is of a rectangular or polygonal structure, and the angle of intersection of the extension lines of the central axes of the two adjacent magnetic steel grooves 9 is 45 °.
Specifically, the diameter of the rotor center hole 7 is 48mm, the width of a rectangular groove 71 formed in the rotor center hole 7 is 5mm, the radius of an arc transition part arranged between two sides of the rectangular groove 71 and the rotor center hole 7 is 0.5mm, a rotor positioning groove 72 is arranged on one side of the rectangular groove 71, the radius of the rotor positioning groove is 1.5mm, the rotor center hole 7 is used for inserting a rotating shaft, and the rectangular groove 71 and the rotor positioning groove 72 are used for fixing the rotor on the rotating shaft and bearing the torque of the rotor so that the rotor and the rotating shaft move together; the arc transition part avoids the abrasion of sharp edges to the pin key when the pin key on the rectangular groove 71 and the rotating shaft are displaced relatively, and reduces the noise when the pin key and the rectangular groove 71 slide mutually, so that the assembly is smooth.
As shown in fig. 3 to 5, in the present embodiment, 8 heat dissipation holes 8 and 8 magnetic steel slots 9 are respectively arranged and circumferentially distributed in the rotor sheet 2, the cross section of each heat dissipation hole 8 is in a triangular structure, each corner of the triangle is set as a fillet, and a rotor positioning hole 10 is arranged between every two adjacent heat dissipation holes 8; the magnetic steel groove 9 is provided with a semicircular bulge 91 and an oblique tooth part 92, the joint of the semicircular bulge 91 and the oblique tooth part 92 is in a step shape, and the semicircular bulge 91 and the oblique tooth part 92 are symmetrically arranged at two ends of the magnetic steel groove 9.
Specifically, the middle part of each magnetic steel groove 9 is provided with two straight lines which are parallel to each other, the two straight lines which are parallel to each other form a strip-shaped groove, the shapes of the two ends of the strip-shaped groove are symmetrical to each other, the structures of the two ends of the strip-shaped groove comprise a semicircular bulge 91 and a helical tooth part 92, the two straight lines which are parallel to each other and close to the periphery of the rotor punching sheet 2 are outer straight lines, the other straight line is inner straight lines, the length of the outer straight lines is larger than that of the inner straight lines, the magnetic steel groove 9 further comprises a first oblique line and a second oblique line, the inclination angle of the first oblique line is 108 degrees, the inclination angle of the second oblique line is 156 degrees, and the one end of first slash and the one end of second slash are connected the department and are set up as the circular arc transition, and the other end of first slash and the one end of interior sharp are connected through the broken line, and the relative outer straight line of second slash is closer to rotor sheet 2 periphery, forms skewed tooth portion 92 between first slash, second slash and the broken line.
The structure of the stator winding groove 4 on the stator punching sheet 1 is matched with the stator winding part 5 with the T-shaped structure, so that the magnetic density of the stator winding part 5 is reduced, the magnetic field distribution is more uniform, the working efficiency of the motor is higher, and the heat dissipation effect of the motor is improved by arranging the plurality of heat dissipation grooves 3, so that the service life of the motor is prolonged; in addition, the magnetic steel grooves 9 in the rotor punching sheet 2 can ensure the balance of a magnetic circuit, the supersaturation of magnetic flux density is effectively prevented, the temperature rise of the motor is low, meanwhile, the semicircular bulges 91 and the helical tooth parts 92 at the two ends of the magnetic steel grooves 9 further improve the structural strength of the high-speed rotor punching sheet 2, and the stable operation and no deformation of the rotor punching sheet 2 when the rotating speed is higher than 20000rpm are ensured, so that the motor has good performance and stable structure.
The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a stator-rotor punching sheet for motor, includes stator punching sheet (1) and rotor punching sheet (2), a serial communication port, rotor punching sheet (2) has set gradually rotor centre bore (7), louvre (8) and magnet steel groove (9) from inside to outside, rectangular channel (71) and rotor positioning groove (72) have been seted up on rotor centre bore (7), be provided with circular arc transition portion between the both sides of rectangular channel (71) and rotor centre bore (7), louvre (8) are located between rotor centre bore (7) and magnet steel groove (9), magnet steel groove (9) are rectangle or polygonized structure, the crossing angle of the extension line of the central axis of two adjacent magnet steel grooves (9) is 45.
2. The stator/rotor punching sheet for the motor according to claim 1, wherein the number of the heat dissipation holes (8) and the number of the magnetic steel grooves (9) are 8, the heat dissipation holes are circumferentially distributed on the rotor punching sheet (2), the cross section of each heat dissipation hole (8) is in a triangular structure, each corner of each triangle is set to be a fillet, and a rotor positioning hole (10) is arranged between every two adjacent heat dissipation holes (8).
3. The stator and rotor punching sheet for the motor as recited in claim 1, wherein the magnetic steel slot (9) is provided with a semicircular protrusion (91) and a helical tooth portion (92), the joint of the semicircular protrusion (91) and the helical tooth portion (92) is in a step shape, and the semicircular protrusion (91) and the helical tooth portion (92) are arranged in two and symmetrically arranged at two ends of the magnetic steel slot (9).
4. The stator and rotor punching sheet for the motor as recited in claim 1, wherein the outer peripheral profile of the stator punching sheet (1) is a circular structure, a plurality of heat dissipation slots (3) are uniformly arranged on the outer peripheral profile, 36 stator winding slots (4) are circumferentially distributed on the inner profile of the stator punching sheet (1), and a stator winding part (5) with a T-shaped vertical section is arranged between every two adjacent stator winding slots (4).
5. The stator and rotor punching sheet for the motor as recited in claim 4, wherein one end of the stator winding slot (4) close to the outer contour is arc-shaped, and the inner diameter of the stator winding slot (4) is gradually reduced along the axial direction of the stator punching sheet (1) to form a structure with a wide top end and a narrow bottom end, and the joint of the notch of the stator winding slot (4) and the stator winding part (5) is set as an arc transition surface.
6. The stator and rotor punching sheet for the motor as recited in claim 4, wherein 6 heat dissipation grooves (3) are provided, and two side walls of the heat dissipation grooves (3) are inclined inwards to form an inverted hook-shaped structure, wherein a stator positioning slot (31) is provided in one heat dissipation groove (3), and the vertical section of the stator positioning slot (31) is in a semi-circular arc-shaped structure.
7. The stator-rotor punching sheet for the motor is characterized in that the peripheral outline of the stator punching sheet (1) is further provided with at least one circular arc depression (6), and the radius of the circular arc depression (6) is 1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221400445.5U CN217469584U (en) | 2022-06-07 | 2022-06-07 | Stator and rotor punching sheet for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221400445.5U CN217469584U (en) | 2022-06-07 | 2022-06-07 | Stator and rotor punching sheet for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217469584U true CN217469584U (en) | 2022-09-20 |
Family
ID=83235316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221400445.5U Active CN217469584U (en) | 2022-06-07 | 2022-06-07 | Stator and rotor punching sheet for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217469584U (en) |
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2022
- 2022-06-07 CN CN202221400445.5U patent/CN217469584U/en active Active
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