CN212935583U - Stator core punching sheet, stator core and motor - Google Patents

Stator core punching sheet, stator core and motor Download PDF

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Publication number
CN212935583U
CN212935583U CN202022024559.1U CN202022024559U CN212935583U CN 212935583 U CN212935583 U CN 212935583U CN 202022024559 U CN202022024559 U CN 202022024559U CN 212935583 U CN212935583 U CN 212935583U
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China
Prior art keywords
stator core
cover
motor
support
flange
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CN202022024559.1U
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Chinese (zh)
Inventor
郭丙春
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Foshan Welling Washer Motor Manufacturing Co Ltd
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Foshan Welling Washer Motor Manufacturing Co Ltd
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Abstract

The application provides a stator core towards piece, stator core and motor, stator core towards piece including towards the piece body and a plurality of support installation department of locating towards piece body periphery, towards piece body and support installation department integrated into one piece, support the installation department and be used for stretching into between two end covers of motor to support two end covers, set up on the support installation department and supply the fastener to pass the mounting hole with fixed stay installation department in the end cover. The application provides a stator core towards piece, stator core and motor, support the installation department and be used for stretching into between two end covers of motor, support two end covers of motor, prevent that the end cover pressurized deformation when the assembly, the usable adjacent waste material punching between the piece body of support installation department on the stator core towards piece forms moreover, make full use of the waste material in the material area, reduced the raw and other materials cost of motor.

Description

Stator core punching sheet, stator core and motor
Technical Field
The application belongs to the technical field of household appliances, and more specifically relates to a stator core punching sheet, a stator core and a motor.
Background
At present, the cost of the motor is high, and in order to reduce the cost of the motor, an end cover which is formed by drawing or injection molding can be used for replacing a cast end cover, so that the cost of raw materials can be reduced, and the cost of a production process can also be reduced. However, the drawn or injection-molded end caps are easily deformed by pressure during assembly due to their thin wall thickness, resulting in a weak end cap connection structure.
Disclosure of Invention
An object of the embodiment of the application is to provide a stator core punching sheet, a stator core and a motor, so as to solve the technical problem that the motor in the prior art is weak in end cover connection structure due to the fact that the wall thickness of an end cover which is stretched or injection-molded is thin and the end cover is easy to deform under pressure.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a stator core is towards piece, includes towards piece body and a plurality of locating towards the support installation department of piece body periphery, towards piece body with support installation department integrated into one piece, support the installation department and be used for stretching into between two end covers of motor, in order to support two the end cover, it provides the fastener and passes with fixed to support to offer on the installation department support the installation department in the mounting hole of end cover.
In one embodiment, the number of the supporting and mounting parts is three, the centers of the three mounting holes are respectively connected with the center of the punching sheet body to form three connecting lines, and the included angles between two adjacent connecting lines are sequentially A1, A2 and A3, A1+ A2+ A3 is 360 degrees, 10 degrees < A1 < 175 degrees, 60 degrees < A2 < 200 degrees, A1 < A2, and A1 < A3.
In one embodiment, the triangle formed by connecting the centers of the three mounting holes is a non-equilateral triangle.
In one embodiment, a1 ═ 90 ± 5 °, a2 and A3 ═ 135 ± 5 °.
The application further provides a stator core, including middle part iron core, first side iron core and second side iron core, first side iron core with second side iron core locates the relative both sides of middle part iron core, the middle part iron core includes a plurality of foretell stator core towards the piece.
The application still provides a motor, including foretell stator core, the motor still includes first end cover, second end cover, is used for connecting first end cover with the fastener and the rotor subassembly of second end cover, stator core with the rotor subassembly is located first end cover with in the space that the second end cover encloses, be equipped with first flange portion on the first end cover, be equipped with second flange portion on the second end cover, stator core's support installation department stretches into first flange portion with between the second flange portion, first connecting hole has been seted up to first flange portion, the second connecting hole has been seted up to second flange portion, the fastener passes first connecting hole the mounting hole of support installation department with the second connecting hole sets up.
In one embodiment, the inner wall of the first end cap has a first mating surface, the periphery of the first side core has a second mating surface, the first mating surface abuts against the second mating surface, the inner wall of the second end cap has a third mating surface, the periphery of the second side core has a fourth mating surface, and the third mating surface abuts against the fourth mating surface.
In one embodiment, the number of the support mounting parts is three, on a plane on which one side of the support mounting part facing the first flange part is located, included angles between two connecting lines formed by centers of mounting holes of two adjacent support mounting parts and a circle center of the stator core are A1, A2 and A3 in sequence, A1+ A2+ A3 is 360 degrees, 10 degrees < A1 < 175 degrees, and 60 degrees < A2 < 200 degrees.
In one embodiment, the triangle formed by connecting the centers of the three mounting holes is a non-equilateral triangle.
In one embodiment, the outer side of the second end cap is provided with a mounting foot for connecting with an external structure, part of the second flange part is integrally formed with the mounting foot, and the second connecting hole is opened on the mounting foot.
The application provides a stator core towards piece, stator core and motor's beneficial effect lies in: compared with the prior art, this application stator core towards piece is including towards piece body and a plurality of support installation department, and the support installation department is used for stretching into between two end covers of motor, supports the clearance between two end covers of motor, prevents that the end cover pressurized deformation when the assembly, guarantees end cover connection structure's reliability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a structural diagram of a stator core stamped steel provided in an embodiment of the present application;
fig. 2 is a perspective structural view of a motor according to an embodiment of the present application;
fig. 3 is a cross-sectional view of a motor provided in an embodiment of the present application;
fig. 4 is a partially enlarged view of a in fig. 4.
Wherein, in the figures, the respective reference numerals:
1-a stator core; 11-a central core; 110-stator core punching sheet; 111-punching sheet body; 112-a support mounting; 1120-mounting holes; 12-a first side core; 121-a second mating face; 13-a second side core; 131-a fourth mating face; 2-a first end cap; 21-a first flange portion; 22-a first mating face; 210-a first connection hole; 3-a second end cap; 31-a second flange portion; 32-a third mating face; 310-a second connection hole; 4-rotor assembly.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The stator core stamped steel provided by the embodiment of the application is explained.
Referring to fig. 1, a stator core stamped sheet 110 provided in the embodiment of the present application includes a stamped sheet body 111 and a plurality of supporting installation portions 112, the plurality of supporting installation portions 112 are disposed around the periphery of the stamped sheet body 111, the stamped sheet body 111 and the supporting installation portions 112 are integrally formed, and the stator core stamped sheet 110 can be cut off from a material strip by a punching method. The support mounting portion 112 is adapted to extend between the two end caps of the motor so as to fill a portion of the gap between the two end caps, thereby supporting the two end caps and preventing the end caps from deforming under force. When the supporting and installing part 112 is a plurality of, a plurality of positions in the circumferential direction of the end cover can be supported, so that the stress of each position in the circumferential direction of the end cover is more uniform. The number of the support mounting portions 112 is not limited herein. More specifically, the support mounting portion 112 is provided with mounting holes 1120, and a fastener penetrates through the two end covers and the mounting holes 1120 to fixedly connect the two end covers and the stator core stamped sheet 110. Under the supporting effect of the supporting installation part 112 on the stator core stamped sheet 110, when the fastening piece is locked, the end cover cannot be deformed, and particularly, the end cover can be prevented from deforming when being stretched and injection molded.
The stator core punching sheet 110 in the above embodiment includes a punching sheet body 111 and a plurality of supporting installation parts 112, and the supporting installation parts 112 are used for extending between two end covers of the motor, supporting the two end covers of the motor, preventing the end covers from deforming under pressure during assembly, and ensuring the reliability of the end cover connection structure.
Optionally, the number of the support mounting portions 112 is three, each support mounting portion 112 is provided with a mounting hole 1120, the center of each mounting hole 1120 and the center of the punching sheet body 111 can form a connecting line, an included angle between two adjacent connecting lines is sequentially a1, a2, A3, a1+ a2+ A3 is 360 °, that is, the three support mounting portions 112 are circumferentially arranged on the circumference of the punching sheet body 111. Wherein, 10 degrees < A1 < 175 degrees, 60 degrees < A2 < 200 degrees, A1 < A2, A1 < A3, the difference among A1, A2, A3 can be made as small as possible, even though the supporting and mounting parts 112 are distributed more evenly.
In one embodiment, a1, a2 and A3 are equal, and the support mounting portions 112 are uniformly arranged on the periphery of the punching sheet body 111 in the circumferential direction, that is, a triangle formed by connecting the centers of the three mounting holes 1120 is an equilateral triangle, so that the stress on the motor end cover is more uniform. In this example, a1, a2, A3 are all 120 °. In another embodiment, the triangle formed by connecting the centers of the three mounting holes 1120 is a non-equilateral triangle, i.e., the three mounting holes 1120 are not circumferentially uniformly disposed on the stator segment. When the stator punching sheet is formed, the raw material is a material belt, at least two stator punching sheets can be punched at the same width position, and the mounting holes 1120 are asymmetrically arranged relative to the center of the punching sheet body 111, so that waste materials on the material belt can be fully utilized, the stator core punching sheet 110 with the supporting and mounting portion 112 can be punched without widening the material belt, and the raw material can be fully utilized.
Alternatively, A1 is 90 + -5 deg., A2 and A3 are 135 + -5 deg.. For example, a1 is 90 °, a2 and A3 are 135 °; a1 was 92 °, a2 and A3 were 134 °; a1 was 94 °, A2 and A3 were 133 °. The a2 and the A3 are larger than the a1, so that the distance between the two mounting holes 1120 connecting the line to form the a1 is shorter, and the support mounting parts 112 corresponding to the two mounting holes 1120 can be arranged closer to the material belt during punching, thereby fully utilizing waste materials on the material belt. When stator core punching sheet 110 was arranged on the material area, support installation department 112 also can not take place to interfere with adjacent die-cut body.
A stator core provided in an embodiment of the present application will now be described.
Referring to fig. 3, a stator core 1 provided in the embodiment of the present application includes a middle core 11, a first side core 12 and a second side core 13, where the first side core 12 and the second side core 13 are respectively disposed on two opposite sides of the middle core 11. The first side core 12 is provided in one of the end covers of the motor, and the second side core 13 is provided in the other end cover of the motor. The central core 11 is formed by laminating a plurality of stator core punching sheets 110 in any of the above embodiments, so that the supporting and mounting portion 112 on the central core 11 can extend to two end covers for supporting the motor, thereby preventing the end covers from deforming when the fasteners fix the end covers and the central core 11, and ensuring the reliability of the end cover connection structure.
The motor provided in the embodiment of the present application will now be described.
Referring to fig. 2 to 4, the motor includes the stator core 1 in the above embodiment, and further includes a first end cap 2, a second end cap 3, a fastener, and a rotor assembly 4. The fastener is used for connecting first end cover 2 and second end cover 3, and the periphery of rotor subassembly 4 is located to stator core 1, and stator core 1 and rotor subassembly 4 all locate in the space that first end cover 2 and second end cover 3 enclose. One end of the first end cover 2 close to the second end cover 3 extends radially outwards to form a first flange part 21, one end of the second end cover 3 close to the first end cover 2 extends radially outwards to form a second flange part 31, and the first flange part 21 and the second flange part 31 are arranged oppositely. The support mounting portion 112 extends between the first flange portion 21 and the second flange portion 31, and the support mounting portion 112 supports both the first flange portion 21 and the second flange portion 31, thereby preventing the first flange portion 21 and the second flange portion 31 from being deformed by pressure. The fastening member fastens the first flange portion 21, the support mounting portion 112, and the second flange portion 31, thereby fastening the first and second end caps 2 and 3. More specifically, the first flange portion 21 has a first coupling hole 210 formed therein, the second flange portion 31 has a second coupling hole 310 formed therein, and the fastening member is disposed through the first coupling hole 210, the mounting hole 1120 of the support mounting portion 112, and the second coupling hole 310. Wherein, the fastener can be selected as a screw, a pin and the like. The motor can be used in household appliances such as washing machines and the like.
Optionally, referring to fig. 4, the first side core 12 is disposed in the first end cover 2, the inner wall of the first end cover 2 has a first matching surface 22, the first side core 12 has a second matching surface 121, and the first matching surface 22 abuts against the second matching surface 121, so that the first end cover 2 wraps the periphery of the first side core 12, and has a supporting function on the stator core, and the strength of the stator core can be indirectly enhanced, thereby preventing the stator core 1 from vibrating to generate noise when the motor operates, and reducing the noise of the motor. Similarly, the inner wall of the second end cap 3 has a third matching surface 32, the second side core 13 has a fourth matching surface 131, and the third matching surface 32 abuts against the fourth matching surface 131, so that the second end cap 3 is wrapped on the periphery of the second side core 13 to support the stator core 1, the strength of the stator core 1 can be indirectly enhanced, the motor is prevented from generating noise due to vibration of the stator core 1 when the motor works, and the noise of the motor can be reduced.
Alternatively, referring to fig. 1, the number of the supporting and mounting portions 112 is plural, and the supporting and mounting portions are circumferentially disposed on the periphery of the middle iron core 11. For example, the number of the support attachment portions 112 is three, and accordingly, the number of the first flange portions 21 and the number of the second flange portions 31 are also three, or the first flange portions 21 are annular, the number of the first flange portions 21 is one, the number of the second flange portions 31 is annular, and the number of the second flange portions 231 is one. The center of each mounting hole 1120 and the circle center of the stator core 1 can form a connection, the included angle between two adjacent connecting lines is sequentially a1, a2 and A3, a1+ a2+ A3 is 360 degrees, namely, the three supporting and mounting parts 112 are circumferentially arranged on the periphery of the middle core 11. Wherein 10 < A1 < 175, 60 < A2 < 200, the difference between A1, A2, A3 is made as small as possible, even though the support mounts 112 are more evenly distributed. Alternatively, a1, a2, A3 are equal, and the respective support-mounting portions 112 are circumferentially uniformly provided around the center core 33.
Optionally, a triangle formed by connecting the centers of the three mounting holes 1120 is a non-equilateral triangle, that is, the three mounting holes 1120 are not circumferentially uniformly disposed on the stator segment. When the stator punching sheet is formed, the supplied material is a material belt, at least two stator punching sheets at the punching position can be punched at the same width position, and the mounting holes 1120 are asymmetrically arranged, so that waste materials on the material belt can be fully utilized, the stator punching sheet with the supporting and mounting part 112 can be punched without widening the material belt, and materials can be saved.
In one embodiment, the outer wall of the second end cap 3 is extended to form a mounting foot for fixedly connecting with an external structure such as a water storage barrel. Part of the second flange portion 31 is integrally formed with the mounting leg, and the second coupling hole 310 is opened in the mounting leg.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a stator core towards piece which characterized in that: including towards the piece body and a plurality of locating towards the support installation department of piece body periphery, towards the piece body with support installation department integrated into one piece, support the installation department and be used for stretching into between two end covers of motor, in order to support two the end cover, it passes with fixed to offer the confession fastener on the support installation department support the installation department in the mounting hole of end cover.
2. The stator core punching sheet of claim 1, wherein: the number of the supporting installation parts is three, the centers of the three installation holes are respectively connected with the center of the punching sheet body to form three connecting lines, and the included angle between every two adjacent connecting lines is A1, A2 and A3 in sequence, A1+ A2+ A3 is 360 degrees, A1 is more than 10 degrees and less than 175 degrees, A2 is more than 60 degrees and less than 200 degrees, A1 is more than A2, and A1 is more than A3.
3. The stator core punching sheet of claim 2, wherein: the triangle formed by connecting the centers of the three mounting holes is a non-equilateral triangle.
4. The stator core punching sheet of claim 3, wherein: a1 ═ 90 ± 5 °, a2 and A3 ═ 135 ± 5 °.
5. Stator core, its characterized in that: the stator core punching sheet comprises a middle iron core, a first side iron core and a second side iron core, wherein the first side iron core and the second side iron core are arranged on two opposite sides of the middle iron core, and the middle iron core comprises a plurality of stator core punching sheets according to any one of claims 1 to 4.
6. An electric motor characterized by: the motor comprises the stator core of claim 5, and further comprises a first end cover, a second end cover, a fastener for connecting the first end cover and the second end cover, and a rotor assembly, wherein the stator core and the rotor assembly are arranged in a space enclosed by the first end cover and the second end cover, the first end cover is provided with a first flange portion, the second end cover is provided with a second flange portion, a supporting installation portion of the stator core extends into a space between the first flange portion and the second flange portion, the first flange portion is provided with a first connecting hole, the second flange portion is provided with a second connecting hole, and the fastener penetrates through the first connecting hole, the installation hole of the supporting installation portion and the second connecting hole.
7. The motor of claim 6, wherein: the inner wall of the first end cover is provided with a first matching surface, the periphery of the first side iron core is provided with a second matching surface, the first matching surface is abutted to the second matching surface, the inner wall of the second end cover is provided with a third matching surface, the periphery of the second side iron core is provided with a fourth matching surface, and the third matching surface is abutted to the fourth matching surface.
8. The motor of claim 6, wherein: the number of the supporting and mounting parts is three, on a plane where one side of the supporting and mounting part facing to the first flange part is located, included angles between two connecting lines formed by centers of mounting holes of two adjacent supporting and mounting parts and circle centers of the stator cores are A1, A2 and A3 in sequence, A1+ A2+ A3 is 360 degrees, 10 degrees is larger than A1 and smaller than 175 degrees, and 60 degrees is larger than A2 and smaller than 200 degrees.
9. The motor of claim 8, wherein: the triangle formed by connecting the centers of the three mounting holes is a non-equilateral triangle.
10. The motor of claim 6, wherein: the outer side of the second end cover is provided with a mounting foot used for being connected with an external structure, part of the second flange part and the mounting foot are integrally formed, and the second connecting hole is formed in the mounting foot.
CN202022024559.1U 2020-09-15 2020-09-15 Stator core punching sheet, stator core and motor Active CN212935583U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022024559.1U CN212935583U (en) 2020-09-15 2020-09-15 Stator core punching sheet, stator core and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022024559.1U CN212935583U (en) 2020-09-15 2020-09-15 Stator core punching sheet, stator core and motor

Publications (1)

Publication Number Publication Date
CN212935583U true CN212935583U (en) 2021-04-09

Family

ID=75305755

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022024559.1U Active CN212935583U (en) 2020-09-15 2020-09-15 Stator core punching sheet, stator core and motor

Country Status (1)

Country Link
CN (1) CN212935583U (en)

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