CN107124050B - Stator punching sheet, motor and compressor - Google Patents
Stator punching sheet, motor and compressor Download PDFInfo
- Publication number
- CN107124050B CN107124050B CN201710505964.5A CN201710505964A CN107124050B CN 107124050 B CN107124050 B CN 107124050B CN 201710505964 A CN201710505964 A CN 201710505964A CN 107124050 B CN107124050 B CN 107124050B
- Authority
- CN
- China
- Prior art keywords
- center
- yoke ring
- rivet
- symmetry axis
- rivet portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004080 punching Methods 0.000 title claims abstract description 63
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000003475 lamination Methods 0.000 description 31
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a stator punching sheet, a motor and a compressor. The stator punching sheet comprises a yoke ring and a plurality of stator teeth connected to the inner periphery of the yoke ring, a winding groove is defined between every two adjacent stator teeth, a rivet part is arranged on the yoke ring, and the minimum distance D1 between the outer contour of the rivet part and the outer wall of the yoke ring and the minimum distance D2 between the outer contour of the rivet part and the inner wall of the yoke ring satisfy the following relation: d1 Is more than or equal to 2mm and D2 is more than or equal to 2mm. According to the stator punching sheet provided by the embodiment of the invention, the positions of the riveting parts are reasonable, so that the stator punching sheet can be prevented from deforming, and the influence of the riveting parts on a stator magnetic circuit can be reduced.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a stator punching sheet, a motor with the stator punching sheet and a compressor with the motor.
Background
The stator core is formed by stacking a plurality of stator punching sheets, and two adjacent stator punching sheets are generally connected through riveting and buckling, so that the plurality of stator punching sheets are tightly attached and pressed. However, the position selection of the rivet point is unreasonable, which not only causes the stator punching sheet to deform and causes poor stator clearance, but also affects the stator magnetic circuit and increases the iron loss. Thus, the choice of the location of the rivet point is critical.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the stator punching sheet is reasonable in position of the riveting part, so that the stator punching sheet can be prevented from deforming, and the influence of the riveting part on a stator magnetic circuit can be reduced.
The invention also provides a motor with the stator punching sheet.
The invention also provides a compressor with the motor.
According to the stator punching sheet of the embodiment of the first aspect of the present invention, the stator punching sheet includes a yoke ring and a plurality of stator teeth connected to the inner periphery of the yoke ring, a winding slot is defined between every two adjacent stator teeth, a rivet portion is arranged on the yoke ring, and a minimum distance D1 between an outer contour of the rivet portion and an outer wall of the yoke ring and a minimum distance D2 between an outer contour of the rivet portion and an inner wall of the yoke ring satisfy the following relationship: d1 Is more than or equal to 2mm and D2 is more than or equal to 2mm.
According to the stator punching sheet provided by the embodiment of the invention, the minimum distance D1 between the outer contour of the rivet part and the outer wall of the magnetic yoke ring and the minimum distance D2 between the outer contour of the rivet part and the inner wall of the magnetic yoke ring are used for meeting the following relations: d1 More than or equal to 2mm and D2 is more than or equal to 2mm, thereby ensuring that the riveting position on the stator punching sheet is reasonable, avoiding the stator punching sheet from deforming, reducing the influence of the riveting part on the stator magnetic circuit and ensuring the performance of the stator core.
In addition, the stator punching sheet according to the embodiment of the invention can also have the following additional technical characteristics:
according to one embodiment of the invention, the rivet portion includes a plurality of rivet portions, and the rivet portions are spaced apart along the circumference of the yoke ring.
According to one embodiment of the invention, the stator lamination has a first symmetry axis and a second symmetry axis which are perpendicular to each other, the first symmetry axis and the second symmetry axis divide the stator lamination into four identical shaped unit parts, the projection of each unit part in a base plane comprises an outer ring contour line segment, the outer ring contour line segment comprises a first half side, a bevel side and a second half side which are connected in sequence, the first half side is perpendicular to the first symmetry axis, the second half side is perpendicular to the second symmetry axis, a protruding part is arranged between the bevel side and the second half side, and the length L1 of the stator lamination on the first symmetry axis and the length L2 of the stator lamination on the second symmetry axis satisfy the following conditions: 1 is less than or equal to L1/L2 is less than or equal to 1.2, and an included angle alpha between the bevel edge and the first half edge meets the following conditions: 28 DEG.ltoreq.alpha.ltoreq.29 DEG, the projection of the projection on the second symmetry axis having a length L3 and a length L4 of the first half-edge satisfying: 1-L4/L3-1.2, wherein the base surface is a plane vertical to the axial direction of the magnetic yoke ring, each unit part is provided with a rivet part and a mounting hole which is spaced from the rivet part, and at least one part of the mounting hole is arranged on the protruding part.
Optionally, the center of the rivet portion and the center of the mounting hole are offset in both the radial and circumferential directions of the yoke ring.
Optionally, a minimum distance D3 between the outer contour of the rivet portion and the center of the mounting hole is > 8.5mm.
Optionally, a first rivet portion and a second rivet portion are disposed on the yoke ring of each unit portion, the first rivet portion is located between the base line and the first symmetry axis, the second rivet portion is located between the base line and the second symmetry axis, and an included angle β between a connecting line between a center of the first rivet portion and a center of the yoke ring and the first symmetry axis is satisfied: and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is more than or equal to 20 degrees and less than or equal to 40 degrees, and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is as follows: gamma is more than or equal to 21 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
Optionally, each yoke ring of the unit portion is provided with a first rivet portion, the first rivet portion is located between the base line and the first symmetry axis, and an included angle β between a connecting line between a center of the first rivet portion and a center of the yoke ring and the first symmetry axis satisfies: beta is larger than or equal to 20 degrees and smaller than or equal to 40 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
Optionally, a second rivet portion is disposed on the yoke ring of each unit portion, the second rivet portion is located between the base line and the second symmetry axis, and an included angle γ between a connecting line between a center of the second rivet portion and a center of the yoke ring and the second symmetry axis satisfies: gamma is more than or equal to 21 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
Optionally, a first rivet portion is disposed on the yoke ring of one of the two adjacent unit portions, and a second rivet portion is disposed on the yoke ring of the other unit portion, where the first rivet portion is located between the base line and the first symmetry axis, the second rivet portion is located between the base line and the second symmetry axis, and an angle β between a line between a center of the first rivet portion and a center of the yoke ring and the first symmetry axis satisfies: and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is more than or equal to 20 degrees and less than or equal to 40 degrees, and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is as follows: gamma is more than or equal to 21 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
An electric machine according to an embodiment of the second aspect of the present invention comprises a stator lamination according to an embodiment of the first aspect of the present invention described above.
According to the motor provided by the embodiment of the invention, the stator punching sheet according to the embodiment of the first aspect of the invention is arranged, so that the motor has all the advantages of the stator punching sheet, and the performance of the motor is improved.
A compressor according to a third aspect of the present invention comprises a motor according to an embodiment of the second aspect of the present invention, such that the compressor has all the advantages of the motor described above, thereby improving the performance of the compressor.
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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a stator lamination according to one embodiment of the invention;
FIG. 2 is a schematic structural view of one unit portion of the stator lamination shown in FIG. 1;
FIG. 3 is a schematic structural view of a stator lamination according to another embodiment of the invention;
FIG. 4 is a schematic structural view of a stator lamination in accordance with yet another embodiment of the invention;
FIG. 5 is a schematic structural view of a stator lamination according to yet another embodiment of the invention;
fig. 6 is a schematic structural view of a stator lamination according to yet another embodiment of the invention.
Reference numerals:
stator laminations 100;
a yoke ring 1; a rivet portion 11; a first rivet portion 111; a second rivet portion 112; a mounting hole 12; a unit section 13; a first half 131; a second half 132; a bevel edge 133; a projection 134;
stator teeth 2; a wire winding groove 21;
a first axis of symmetry 200; a second axis of symmetry 300; a baseline 400.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
A stator core 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-6.
As shown in fig. 1 to 6, the stator lamination 100 according to the embodiment of the present invention includes a yoke ring 1 and a plurality of stator teeth 2 connected to the inner circumference of the yoke ring 1, a winding slot 21 is defined between each adjacent two of the stator teeth 2, and a rivet portion 11 is provided on the yoke ring 1.
The rivet portion 11 is used to achieve connection between two adjacent stator laminations 100 stacked on each other, i.e., the two rivet portions 11 of two adjacent stator laminations 100 stacked on each other cooperate with each other to achieve connection between two adjacent stator laminations 100. The structure and shape of the rivet portion 11 may be set according to actual needs, for example, the rivet portion 11 may be punched downwards from the upper surface of the stator lamination 100 to form a concave recess downwards on the upper surface of the stator lamination 100, and at the same time form a convex protrusion downwards on the lower surface of the stator lamination 100, between two adjacent stator laminations 100, the protrusion on the lower surface of the upper stator lamination 100 is clamped in the recess on the upper surface of the lower stator lamination 100, so as to realize connection between the two stator laminations 100.
In the prior art, the position of the rivet part on the stator punching sheet is poor, and the rivet part is too close to the edge of the stator punching sheet, so that the edge of the stator punching sheet is deformed in the punching process of the rivet part, the stator punching sheets cannot be tightly attached and pressed, a stator magnetic circuit is also influenced, and the performance of a stator core is influenced.
To this end, the inventors of the present application have conducted repeated studies and experiments on the position of the rivet portion on the stator punching sheet, and found that when the minimum distance D1 between the outer contour of the rivet portion 11 and the outer wall of the yoke ring 1 and the minimum distance D2 between the outer contour of the rivet portion 11 and the inner wall of the yoke ring 1 satisfy the relationship: d1 When being more than or equal to 2mm and D2 is more than or equal to 2mm, the edge of the stator punching sheet 100 can be prevented from deforming, so that the stator punching sheet 100 can be tightly attached and pressed, and the performance of the stator core is ensured.
According to the stator punching sheet 100 of the embodiment of the present invention, by making the minimum distance D1 between the outer contour of the rivet portion 11 and the outer wall of the yoke ring 1 and the minimum distance D2 between the outer contour of the rivet portion 11 and the inner wall of the yoke ring 1 satisfy the following relationship: d1 And the diameter D2 is more than or equal to 2mm, so that the position of the rivet part 11 on the stator punching sheet 100 is reasonable, the stator punching sheet 100 can be prevented from deforming, the influence of the rivet part 11 on a stator magnetic circuit can be reduced, and the performance of a stator core is ensured.
Preferably, the minimum distance D1 between the outer contour of the rivet portion 11 and the outer wall of the yoke ring 1 is 2mm, so that the influence of the rivet portion 11 on the magnetic circuit performance of the stator can be reduced as much as possible on the premise of avoiding deformation of the stator punching sheet 100, and the performance of the stator core is better.
In one embodiment of the present invention, as shown in fig. 1 to 6, the rivet portion 11 includes a plurality, and the rivet portions 11 are spaced apart along the circumference of the yoke ring 1, whereby a more tight fit and compression between the stator laminations 100 can be ensured.
In one embodiment of the present invention, as shown in fig. 1 to 6, the stator lamination 100 has a first symmetry axis 200 and a second symmetry axis 300 perpendicular to each other, the first symmetry axis 200 and the second symmetry axis 300 divide the stator lamination 100 into four identical shaped unit sections 13, the projection of each unit section 13 in the base plane includes an outer ring contour line segment including a first half 131, a bevel edge 133 and a second half 132 connected in sequence, the first half 131 is perpendicular to the first symmetry axis 200, the second half 132 is perpendicular to the second symmetry axis 300, a protrusion 134 is provided between the bevel edge 133 and the second half 132, and the length L1 of the stator lamination 100 on the first symmetry axis 200 and the length L2 of the stator lamination 100 on the second symmetry axis 300 satisfy: 1.ltoreq.L1/L2.ltoreq.1.2, the angle α between the sloping edge 133 and the first half edge 131 satisfying: 28.ltoreq.α.ltoreq.29°, the projection 134 satisfying between the length L3 of the projection on the second symmetry axis 300 and the length L4 of the first half-edge 131: 1.ltoreq.L4/L3.ltoreq.1.2, wherein the basal plane is a plane perpendicular to the axial direction of the yoke ring 1, each unit portion 13 is provided with a rivet portion 11 and a mounting hole 12 spaced apart from the rivet portion 11, and at least a part of the mounting hole 12 is provided on the projection 134. The mounting holes 12 may be used for mounting of the stator core, for example, may be used for connection between the stator core and the compressor housing. Preferably, the rivet portion 11 is also provided on the protrusion 134 or provided adjacent to the protrusion 134, thereby making the position setting of the rivet portion 11 more flexible.
In one embodiment of the present invention, as shown in fig. 1 to 6, the center of the rivet portion 11 and the center of the mounting hole 12 are offset in both the radial direction and the circumferential direction of the yoke ring 1. Namely, the center of the rivet portion 11 and the center of the mounting hole 12 are offset in the radial direction of the yoke ring 1, and the center of the rivet portion 11 and the center of the mounting hole 12 are also offset in the circumferential direction of the yoke ring 1, whereby interference between the mounting hole 12 and the rivet portion 11 during production can be avoided, and deformation of the edge of the mounting hole 12 caused by the rivet portion 11 during punching can be avoided.
Alternatively, as shown in FIG. 2, the minimum distance D3 between the outer contour of the rivet portion 11 and the center of the mounting hole 12 is > 8.5mm, i.e., the minimum distance D3 between the outer contour of the rivet portion 11 and the center of the mounting hole 12 is greater than 8.5mm, e.g., D3 may be 8.6mm, 9mm, 9.1mm, or the like. By having a minimum distance D3 > 8.5mm between the outer contour of the rivet portion 11 and the center of the mounting hole 12, interference between the fastener and the rivet portion 11, resulting in the fastener not being able to be installed in place, can be avoided when the fastener is used to be assembled through the mounting hole 12. For example, when the bolts are used to pass through the mounting holes 12 to achieve the connection between the stator core and the compressor, the head of the bolts and the nuts are larger than the size of the mounting holes 12, so that the minimum distance D3 between the outer contour of the rivet portion 11 and the center of the mounting holes 12 is greater than 8.5mm, and a sufficient mounting space is provided for the installation of the fastener, thereby avoiding the head of the bolts or the nuts from being caught on the rivet portion 11 and not tightly pressed against the surface of the stator punching sheet 100.
Preferably, as shown in fig. 1 to 6, the cross section of the rivet portion 11 is rectangular, and the length extending direction of the rivet portion 11 is perpendicular to the connecting line between the center of the yoke ring 1 and the center of the rivet portion 11, so that the connection and fastening between two adjacent stator punching sheets 100 are tight and firm, the influence of the rivet portion 11 on the stator magnetic circuit can be reduced, and the performance of the stator core is ensured.
In an alternative example of the present invention, as shown in fig. 1 to 2, the yoke ring 1 of each unit portion 13 is provided with a first rivet portion 111 and a second rivet portion 112, and the first rivet portion 111 is located between the base line 400 and the first symmetry axis 200, the second rivet portion 112 is located between the base line 400 and the second symmetry axis 300, and an angle β between a line between a center of the first rivet portion 111 and a center of the yoke ring 1 and the first symmetry axis 200 satisfies: 20 DEG.ltoreq.beta.ltoreq.40 DEG, the angle gamma between the second symmetry axis 300 and the line connecting the center of the second rivet portion 112 and the center of the yoke ring 1 satisfying: gamma is equal to or greater than 21 deg., wherein the base line 400 is the line between the center of the yoke ring 1 and the center of the mounting hole 12. Thereby, the rivet fastening parts 11 can be uniformly distributed on the circumference of the magnetic yoke ring 1, so that the stator punching sheet 100 is ensured to be more uniformly distributed with the fastening acting force, and the stator punching sheets 100 are more tightly attached. In addition, it is ensured that the first rivet portion 111 is opposite to the stator teeth 2 in the radial direction of the yoke ring 1, and the second rivet portion 112 is disposed adjacent to the protruding portion 134, so that the rivet portion 11 is disposed more flexibly, and deformation of the stator punching sheet 100 caused by the rivet portion 11 in the punching process can be better avoided.
In an alternative example of the present invention, as shown in fig. 3, the yoke ring 1 of each unit portion 13 is provided with a second rivet portion 112, the second rivet portion 112 is located between the base line 400 and the second symmetry axis 300, and an angle γ between a line between the center of the second rivet portion 112 and the center of the yoke ring 1 and the second symmetry axis 300 satisfies: gamma. Gtoreq.21° (reference is made herein to the example shown in figure 2) wherein the baseline 400 is the line connecting the centre of the yoke ring 1 and the centre of the mounting hole 12. Thereby, the rivet fastening parts 11 can be uniformly distributed on the circumference of the magnetic yoke ring 1, so that the stator punching sheet 100 is ensured to be more uniformly distributed with the fastening acting force, and the stator punching sheets 100 are more tightly attached. In addition, the second rivet portion 112 is further guaranteed to be disposed adjacent to the protruding portion 134, so that the rivet portion 11 is more flexibly disposed, and deformation of the stator punching sheet 100 caused by the rivet portion 11 in the punching process can be better avoided.
In an alternative example of the present invention, as shown in fig. 4, the yoke ring 1 of each unit portion 13 is provided with a first rivet portion 111, the first rivet portion 111 is located between the base line 400 and the first symmetry axis 200, and an angle β between a line between the center of the first rivet portion 111 and the center of the yoke ring 1 and the first symmetry axis 200 satisfies: 20.ltoreq.beta.ltoreq.40 (reference may be made herein to the example shown in FIG. 2), wherein the base line 400 is the line connecting the center of the yoke ring 1 and the center of the mounting hole 12. Thereby, the rivet fastening parts 11 can be uniformly distributed on the circumference of the magnetic yoke ring 1, so that the stator punching sheet 100 is ensured to be more uniformly distributed with the fastening acting force, and the stator punching sheets 100 are more tightly attached. In addition, the first rivet portion 111 is opposite to the stator teeth 2 in the radial direction of the yoke ring 1, so that the rivet portion 11 is more flexibly arranged, and the stator punching sheet 100 is better prevented from being deformed in the punching process by the rivet portion 11.
In an alternative example of the present invention, as shown in fig. 5 to 6, a first rivet portion 111 is provided on the yoke ring 1 of one of the two adjacent unit portions 13 and a second rivet portion 112 is provided on the yoke ring 1 of the other unit portion 13, wherein the first rivet portion 111 is located between the base line 400 and the first symmetry axis 200, the second rivet portion 112 is located between the base line 400 and the second symmetry axis 300, and an angle β between a line between a center of the first rivet portion 111 and a center of the yoke ring 1 and the first symmetry axis 200 satisfies: 20 DEG.ltoreq.beta.ltoreq.40 DEG, the angle gamma between the second symmetry axis 300 and the line connecting the center of the second rivet portion 112 and the center of the yoke ring 1 satisfying: gamma is equal to or greater than 21 deg., wherein the base line 400 is the line between the center of the yoke ring 1 and the center of the mounting hole 12. Thereby, the rivet fastening parts 11 can be uniformly distributed on the circumference of the magnetic yoke ring 1, so that the stator punching sheet 100 is ensured to be more uniformly distributed with the fastening acting force, and the stator punching sheets 100 are more tightly attached. In addition, it is ensured that the first rivet portion 111 is opposite to the stator teeth 2 in the radial direction of the yoke ring 1, and the second rivet portion 112 is disposed adjacent to the protruding portion 134, so that the rivet portion 11 is disposed more flexibly, and deformation of the stator punching sheet 100 caused by the rivet portion 11 in the punching process can be better avoided.
An electric machine according to an embodiment of the second aspect of the present invention comprises a stator lamination 100 according to an embodiment of the first aspect of the present invention described above.
According to the motor of the embodiment of the invention, the stator lamination 100 according to the embodiment of the first aspect of the invention is arranged, so that the motor has all the advantages of the stator lamination 100, and the performance of the motor is improved.
A compressor according to a third aspect of the present invention comprises a motor according to an embodiment of the second aspect of the present invention, such that the compressor has all the advantages of the motor described above, thereby improving the performance of the compressor.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The stator punching sheet is characterized by comprising a yoke ring and a plurality of stator teeth connected to the inner periphery of the yoke ring, a winding groove is defined between every two adjacent stator teeth, a rivet part is arranged on the yoke ring, and the minimum distance D1 between the outer contour of the rivet part and the outer wall of the yoke ring and the minimum distance D2 between the outer contour of the rivet part and the inner wall of the yoke ring satisfy the following relation: d1 More than or equal to 2mm and D2 more than or equal to 2mm;
the stator punching sheet is provided with a first symmetrical axis and a second symmetrical axis which are perpendicular to each other, the first symmetrical axis and the second symmetrical axis divide the stator punching sheet into four unit parts with the same shape, the projection of each unit part in a base plane comprises an outer ring contour line segment, the outer ring contour line segment comprises a first half side, a bevel side and a second half side which are sequentially connected, the first half side is perpendicular to the first symmetrical axis, the second half side is perpendicular to the second symmetrical axis, a protruding part is arranged between the bevel side and the second half side, each unit part is provided with a rivet part and a mounting hole which is spaced from the rivet part, and at least one part of the mounting hole is arranged on the protruding part;
the center of the rivet part and the center of the mounting hole are staggered in the radial direction and the circumferential direction of the yoke ring;
the minimum distance D3 between the outer contour of the rivet part and the center of the mounting hole is more than 8.5mm;
the length L1 of the stator punching sheet on the first symmetrical axis and the length L2 of the stator punching sheet on the second symmetrical axis are as follows: 1 is less than or equal to L1/L2 is less than or equal to 1.2, and an included angle alpha between the bevel edge and the first half edge meets the following conditions: 28 DEG.ltoreq.alpha.ltoreq.29 DEG, the projection of the projection on the second symmetry axis having a length L3 and a length L4 of the first half-edge satisfying: 1.ltoreq.L4/L3.ltoreq.1.2, wherein the basal plane is a plane perpendicular to the axial direction of the yoke ring.
2. The stator plate of claim 1, wherein the rivet portion includes a plurality of rivet portions, and the rivet portions are spaced apart along the circumference of the yoke ring.
3. The stator punching sheet according to claim 1, characterized in that a first rivet portion and a second rivet portion are provided on the yoke ring of each unit portion, and the first rivet portion is located between the base line and the first symmetry axis, the second rivet portion is located between the base line and the second symmetry axis, and an angle β between a line between a center of the first rivet portion and a center of the yoke ring and the first symmetry axis satisfies: and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is more than or equal to 20 degrees and less than or equal to 40 degrees, and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is as follows: gamma is more than or equal to 21 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
4. The stator punching sheet according to claim 1, characterized in that a first rivet portion is provided on the yoke ring of each unit portion, the first rivet portion is located between the base line and the first symmetry axis, and an angle β between a line between a center of the first rivet portion and a center of the yoke ring and the first symmetry axis satisfies: beta is larger than or equal to 20 degrees and smaller than or equal to 40 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
5. The stator punching sheet according to claim 1, characterized in that a second rivet portion is provided on the yoke ring of each of the unit portions, the second rivet portion being located between the base line and the second symmetry axis, and an angle γ between a line between a center of the second rivet portion and a center of the yoke ring and the second symmetry axis being satisfied: gamma is more than or equal to 21 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
6. The stator punching sheet according to claim 1, characterized in that a first rivet portion is provided on a yoke ring of one of the two adjacent unit portions and a second rivet portion is provided on a yoke ring of the other unit portion, wherein the first rivet portion is located between a base line and the first symmetry axis, the second rivet portion is located between the base line and the second symmetry axis, and an angle β between a line between a center of the first rivet portion and a center of the yoke ring and the first symmetry axis satisfies: and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is more than or equal to 20 degrees and less than or equal to 40 degrees, and the included angle gamma between the connecting line between the center of the second rivet part and the center of the magnetic yoke ring and the second symmetry axis is as follows: gamma is more than or equal to 21 degrees, wherein the base line is a connecting line between the center of the magnetic yoke ring and the center of the mounting hole.
7. An electric machine, comprising: the stator core of any of claims 1-6.
8. A compressor, comprising: the electric machine of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505964.5A CN107124050B (en) | 2017-06-28 | 2017-06-28 | Stator punching sheet, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505964.5A CN107124050B (en) | 2017-06-28 | 2017-06-28 | Stator punching sheet, motor and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107124050A CN107124050A (en) | 2017-09-01 |
| CN107124050B true CN107124050B (en) | 2024-02-13 |
Family
ID=59718879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710505964.5A Active CN107124050B (en) | 2017-06-28 | 2017-06-28 | Stator punching sheet, motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107124050B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008099828A1 (en) * | 2007-02-16 | 2008-08-21 | Daikin Industries, Ltd. | Motor |
| CN102742125A (en) * | 2010-02-03 | 2012-10-17 | 丰田自动车株式会社 | Stator core |
| CN202840708U (en) * | 2012-08-15 | 2013-03-27 | 珠海格力电器股份有限公司 | Stator punching sheet for motor |
| CN203104142U (en) * | 2012-12-21 | 2013-07-31 | 日德电机（浙江）有限公司 | Stator core for motor |
| CN204103615U (en) * | 2014-09-06 | 2015-01-14 | 佛山市顺德万和电气配件有限公司 | Motor stator core |
| CN104638784A (en) * | 2013-11-08 | 2015-05-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator structure and motor |
| CN206865235U (en) * | 2017-06-28 | 2018-01-09 | 安徽美芝制冷设备有限公司 | Stator punching, motor and compressor |
-
2017
- 2017-06-28 CN CN201710505964.5A patent/CN107124050B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008099828A1 (en) * | 2007-02-16 | 2008-08-21 | Daikin Industries, Ltd. | Motor |
| CN102742125A (en) * | 2010-02-03 | 2012-10-17 | 丰田自动车株式会社 | Stator core |
| CN202840708U (en) * | 2012-08-15 | 2013-03-27 | 珠海格力电器股份有限公司 | Stator punching sheet for motor |
| CN203104142U (en) * | 2012-12-21 | 2013-07-31 | 日德电机（浙江）有限公司 | Stator core for motor |
| CN104638784A (en) * | 2013-11-08 | 2015-05-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator structure and motor |
| CN204103615U (en) * | 2014-09-06 | 2015-01-14 | 佛山市顺德万和电气配件有限公司 | Motor stator core |
| CN206865235U (en) * | 2017-06-28 | 2018-01-09 | 安徽美芝制冷设备有限公司 | Stator punching, motor and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107124050A (en) | 2017-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7372184B2 (en) | Stator of motor | |
| EP2584680B1 (en) | Stator core for motor and manufacturing method thereof | |
| US7569965B2 (en) | Stator for motor | |
| JP2017134958A (en) | Battery terminal | |
| CN217135245U (en) | Rotor assembly for motor and motor with same | |
| CN102710034B (en) | Motor inner stator with adjustable outer diameter and manufacture method of motor inner stator | |
| CN107124050B (en) | Stator punching sheet, motor and compressor | |
| CN116581954A (en) | Rotor punching sheet, rotor iron core, rotor, motor and vehicle | |
| CN206226138U (en) | Stator punching, motor and compressor | |
| EP3200319B1 (en) | Stator assembly, and, motor and electric pump having the same | |
| CN212676963U (en) | Claw pole plate structure and claw pole type permanent magnet synchronous motor using same | |
| CN112713672B (en) | Motor and assembly structure thereof | |
| CN210246418U (en) | Stator core, motor and washing machine | |
| CN209767269U (en) | Laminated motor base | |
| CN106787272B (en) | Stator punching sheet and processing method thereof | |
| CN107591911B (en) | Rotor punching sheet, rotor core, motor and compressor | |
| CN213754134U (en) | Rotor punching sheet, motor rotor and permanent magnet motor | |
| CN212435445U (en) | Stator punching and motor | |
| CN215990340U (en) | Stator single tooth | |
| CN216390612U (en) | Stator punching sheet monomer structure, stator punching sheet and iron core combined structure | |
| CN214850669U (en) | Stator punching sheet | |
| CN216490145U (en) | Cast aluminum rotor oblique pole tool of new energy automobile | |
| CN115864690A (en) | Motor stator core | |
| CN213425882U (en) | Outer rotor structure of direct current compressor | |
| CN216530790U (en) | Insulating part for motor and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |