CN112510871A - Rotor core, rotor structure, motor, compressor and electric appliance with same - Google Patents
Rotor core, rotor structure, motor, compressor and electric appliance with same Download PDFInfo
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- CN112510871A CN112510871A CN202011263563.1A CN202011263563A CN112510871A CN 112510871 A CN112510871 A CN 112510871A CN 202011263563 A CN202011263563 A CN 202011263563A CN 112510871 A CN112510871 A CN 112510871A
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- punching sheet
- magnetic steel
- rotor
- rotor core
- steel mounting
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- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The application provides a rotor core, a rotor structure, a motor, a compressor and an electric appliance with the same, wherein the electric appliance comprises a core body and an axial extension part, and the core body is formed by laminating first punching sheets; the diameter of the first punching sheet is D3; the axial extension part is arranged at one end of the iron core body and is used for balancing weight; the axial extension part is formed by laminating the second punching sheet; a blanking area is arranged on the outer peripheral wall of the second punching sheet; the minimum distance between the blanking area and the central axis of the second punching sheet is R; wherein, R is D3/2. According to the rotor core, the rotor structure, the motor, the compressor and the electric appliance with the compressor, the rotor inertia can be increased, and the process production stability can be guaranteed.
Description
Technical Field
The application belongs to the technical field of electric appliances, and particularly relates to a rotor core, a rotor structure, a motor, a compressor and an electric appliance with the same.
Background
At present, an important factor influencing the volume of the compressor is the volume of the motor, and the miniaturization design of the motor can effectively reduce the volume of the pump body and the height of the whole machine. However, the miniaturization design of the inverter motor has a disadvantage that the rotor volume is reduced, so that the rotational inertia is reduced, the low-frequency control stability of the controller is deteriorated, and the low-frequency energy efficiency, noise and vibration level of the compressor are greatly affected.
However, the following two measures are adopted to increase the moment of inertia of the entire rotor: the first method comprises the following steps: the balancing weight is added on the rotor component, so that the material cost and the processing cost are increased, the assembly precision requirement is high, the dynamic balance of the rotor is poor, and the noise vibration level and the control stability are influenced. And the second method comprises the following steps: the axial extension part is added to increase the rotational inertia, but the axial extension part and the iron core body are different in size, if the same pair of dies are adopted for punching in the production process, the magnetic steel limiting part is used for blanking, the width of the magnetic steel limiting part is required to be increased for ensuring the rigidity, and the performance of the motor can be influenced; if the assembly is carried out after the two pairs of dies are punched, the assembly precision requirement is high, the reliability is poor, the extension part is separately punched, the die investment needs to be increased, in addition, the inner diameter of the extension part is used for being matched with a crankshaft, the extension part is required to be accurately matched with the upper part of the rotor to ensure the rotor run-out value, and the method increases the working procedure and the processing cost.
Therefore, how to provide a rotor core, a rotor structure, a motor, a compressor and an electric appliance with the rotor core, which can not only increase the rotor inertia of the rotor, but also ensure the process production stability, becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a rotor core, rotor structure, motor and compressor and have its electrical apparatus, can not only increase its rotor inertia, can also guarantee technology production stability.
In order to solve the above problem, the present application provides a rotor core including:
the iron core body is formed by laminating first punching sheets; the diameter of the first punching sheet is D3;
the axial extension part is arranged at one end of the iron core body and is used for balancing weight; the axial extension part is formed by laminating the second punching sheet; a blanking area is arranged on the outer peripheral wall of the second punching sheet; the minimum distance between the blanking area and the central axis of the second punching sheet is R; wherein, R is D3/2.
Preferably, the outer peripheral wall of the second punching sheet is provided with a positioning groove; and in the direction of the central axis of the second punching sheet, the positioning groove penetrates through the second punching sheet to form a blanking area.
Preferably, on the surface of the second punching sheet, a central angle corresponding to an area occupied by the bottom of the positioning groove is theta; wherein theta is more than or equal to 0 and less than or equal to 60 degrees.
Preferably, the diameter of the second punching sheet is D1; wherein D1 ═ D3; the outer peripheral wall of the second punching sheet forms a blanking area.
Preferably, a magnetic steel mounting area is arranged on the outer peripheral wall of the first punching sheet; the number of the magnetic steel mounting areas is set to be at least one; when the number of the magnetic steel mounting areas is more than two, the more than two magnetic steel mounting areas are sequentially arranged in the circumferential direction of the first punching sheet;
and/or when the number of the magnetic steel mounting areas is more than two, a circumferential limiting piece is arranged between every two adjacent magnetic steel mounting areas;
and/or when the number of the magnetic steel mounting areas is set to be one, the peripheral wall of the first punching sheet is the magnetic steel mounting area.
Preferably, the maximum distance between the circumferential limiting piece and the central axis of the first punching sheet is D2/2; wherein, D1 ═ D2;
and/or in the circumferential direction of the first punching sheet, the width of the circumferential limiting piece is X, wherein X is more than or equal to 0 and less than 3.
Preferably, the number of the positioning grooves is set to be even; the even number of positioning grooves are sequentially arranged in the circumferential direction of the second punching sheet.
According to still another aspect of the present application, there is provided a rotor structure including a rotor core, the rotor core being the above-mentioned rotor core.
Preferably, the rotor structure further comprises magnetic steel; when the outer peripheral wall of the first punching sheet is provided with one magnetic steel mounting area, the number of the magnetic steel mounting areas is set to be one, and the magnetic steel is annular magnetic steel when the outer peripheral wall of the first punching sheet is the magnetic steel mounting area; the annular magnetic steel sleeve is arranged outside the magnetic steel mounting area.
According to yet another aspect of the present application, there is provided an electric machine comprising a rotor structure as described above.
According to still another aspect of the present application, there is provided a compressor including a motor, the motor being the above-mentioned motor.
According to still another aspect of the present application, there is provided an electric appliance including a compressor, the compressor being the above-mentioned compressor.
The application provides a rotor core, rotor structure, motor and compressor and have its electrical apparatus, can not only increase its rotor inertia, can also guarantee technology production stability.
Drawings
FIG. 1 is a schematic structural diagram of a rotor structure according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second stamped sheet according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first stamped sheet according to an embodiment of the present application;
FIG. 4 is a front view of a rotor core according to an embodiment of the present application;
FIG. 5 is a left side view of a rotor core of an embodiment of the present application;
FIG. 6 is a right side view of a rotor core of an embodiment of the present application;
FIG. 7 is an enlarged view taken at A in FIG. 6;
FIG. 8 is a schematic structural view of a rotor structure according to an embodiment of the present application;
fig. 9 is a torque simulation diagram of the rotor structure according to the embodiment of the present application.
The reference numerals are represented as:
1. an iron core body; 11. a first punching sheet; 111. a circumferential limit piece; 2. an axial extension; 21. a second punching sheet; 211. positioning a groove; 3. and (5) magnetic steel.
Detailed Description
With reference to fig. 1 to 3 in combination, according to an embodiment of the present application, a rotor core includes a core body 1 and an axial extension portion 2, where the core body 1 is formed by laminating first punching sheets 11; the diameter of the first punching sheet 11 is D3; the axial extension part 2 is arranged at one end of the iron core body 1, and the axial extension part 2 is used for balancing weight; the axial extension part 2 is formed by laminating the second punching sheet 21; a blanking area is arranged on the outer peripheral wall of the second punching sheet 21; the minimum distance between the blanking area and the central axis of the second punching sheet 21 is R; wherein, R is D3/2; the axial extension part 2 is used for realizing the purpose of rotor counterweight, and the rotational inertia of the rotor is increased, so that the low-frequency control stability is enhanced; and R is D3/2, has the region corresponding with first punching 11 surface in rotor core's axial on the blanking district promptly, when the blanking, adopts the blanking district to carry out the blanking, can adopt same pair of mould punching, can not only increase its rotor inertia, can also guarantee technology production stability.
Compare in prior art, the technology that adopts surface-mounted rotor riveting balancing weight is complicated, and is with high costs or lead to the problem that has the hidden danger that drops under the high rotational speed, thereby this application adopts axial extension 2 to realize that the rotor counter weight increases its inertia reinforcing low frequency control stability, and the cost is lower, and simple process and safe effective.
Compared with the prior art, the rotor core extension part is adopted for balancing weight, but the sizes of the core body 1 and the axial extension part 2 are different, if the same pair of dies are punched, only the magnetic steel 3 limiting part can be used for blanking, if the magnetic steel 3 limiting part is too narrow, the product deformation can be caused, and the problem that the motor performance is influenced by increasing the width of the magnetic steel 3 limiting part is solved; if the two pairs of dies are assembled after being punched, the assembly precision requirement is high, and the reliability is poor; this application sets up blanking district on axial extension 2, has the region that corresponds in rotor core's axial with first punching 11 surface promptly on the blanking district, when the blanking, can adopt same pair of mould punching, adopts the blanking district to carry out the blanking, can not have the problem that the product warp or influence the motor performance.
The utility model provides a rotor core, by iron core body 1, the spacing portion of iron core extension and magnet steel 3 constitutes, magnet steel 3 can fix the magnet steel installing zone on iron core body 1 through the mode that glue was pasted to separate by the spacing portion of magnet steel 3, the rotor core lower extreme surpasss the part formation iron core extension of magnet steel 3, the effect mainly used rotor counter weight of extension promotes motor low frequency control stability.
The application also discloses some embodiments, a positioning groove 211 is formed in the peripheral wall of the second punching sheet 21; in the central axis direction of the second punching sheet 21, the positioning groove 211 penetrates through the second punching sheet 21 to form a blanking area. The radius of the bottom of the positioning groove 211 is R; the bottom of the positioning groove 211 and the outer peripheral wall of the first stamped piece 11 are concentric circles, and have the same radius, that is, the bottom of the positioning groove 211 and the outer peripheral wall of the corresponding position of the first stamped piece 11 form a complete curved surface.
In the actual production process, the positioning groove 211 and the excircle of the magnetic steel mounting area are positioned on the same circumference; can adopt one set of mould to punch and fold the pressure to the motor punching, can make all towards the piece like this including first towards piece 11 and second towards piece 21 with the material area be connected, fold the in-process of pressing from riveting at the rotor punching in addition, be equipped with the iron core tightening strip in the mould, pretension the punching, make next piece towards the piece under the effect of vertical pressure, with preceding piece towards the piece buckle rivet together.
Adopt constant head tank 211 to carry out the blanking and tighten up, can prevent to adopt the width setting of the spacing portion of 3 magnet steel that leads to of being connected of circumference locating part 111 and material area to directly influence the same magnet steel 3 quantity of overlapping high rotor, influence output torque and motor performance, make the torque ripple grow, influence the noise of motor, vibration level and drive stability's problem.
The application also discloses some embodiments, on the surface of the second stamped sheet 21, the central angle corresponding to the area occupied by the groove bottom of the positioning groove 211 is theta; wherein theta is more than or equal to 0 and less than or equal to 60 degrees.
The radius of the groove bottom of the positioning groove 211 on the second punching sheet 21 is the same as that of the magnetic steel mounting area, so that the magnetic steel mounting area and the positioning groove 211 can be used for blanking and self-riveting; then no longer need rely on 3 spacing portions of magnet steel to carry out the blanking, just also reduce the rigidity requirement of 3 spacing portions of magnet steel for the width that 3 spacing portions of magnet steel can very big degree reduce, promotes motor output torque under the unchangeable condition of motor volume, reduces torque pulsation.
Referring to table 1 and fig. 9 in combination, the motor torque is simulated, and as the width of the limiting part of the magnetic steel 3 is reduced from 3mm to 1mm, the torque pulsation is obviously reduced by 82.75%, and in addition, as the usage amount of the magnetic steel 3 is increased along with the reduction of the width of the limiting part, the output torque of the motor is improved by about 7.8%.
Table 1: torque simulation data
4-7, the present application further discloses embodiments in which the second stamped sheet 21 has a diameter D1; wherein D1 ═ D3; the peripheral wall of the second punching sheet 21 forms a blanking area.
The application also discloses some embodiments, a magnetic steel mounting area is arranged on the outer peripheral wall of the first punching sheet 11; the number of the magnetic steel mounting areas is set to be at least one; when the number of the magnetic steel mounting areas is more than two, the more than two magnetic steel mounting areas are sequentially arranged in the circumferential direction of the first punching sheet 11;
when the number of the magnetic steel mounting areas is more than two, a circumferential limiting piece 111 is arranged between two adjacent magnetic steel mounting areas, so that the magnetic steel 3 can be prevented from being shifted in the circumferential direction;
when the number of the magnetic steel mounting areas is set to be one, the peripheral wall of the first punching sheet 11 is the magnetic steel mounting area.
The application also discloses some embodiments, the maximum distance between the circumferential limiting piece 111 and the central axis of the first stamped piece 11 is D2/2; wherein, D1 ═ D2;
in the circumferential direction of the first stamped steel 11, the width of the circumferential limiting piece 111 is X, wherein X is greater than or equal to 0 and less than 3.
The application also discloses some embodiments, the number of the positioning grooves 211 is set to be even; even number of positioning grooves 211 are sequentially arranged in the circumferential direction of the second punching sheet 21.
Referring to fig. 8 in combination, according to an embodiment of the present application, a rotor structure is provided, which includes a rotor core, where the rotor core is the above-mentioned rotor core.
The application also discloses some embodiments, the rotor structure further comprises magnetic steel 3; when the outer peripheral wall of the first stamped steel 11 is provided with one magnetic steel mounting area, the number of the magnetic steel mounting areas is set to be one, and the outer peripheral wall of the first stamped steel 11 is the magnetic steel mounting area, the magnetic steel 3 is annular magnetic steel; the annular magnetic steel sleeve is arranged outside the magnetic steel mounting area.
According to an embodiment of the present application, there is provided a motor including a rotor structure, where the rotor structure is the above-mentioned rotor structure. The motor rotor is suitable for but not limited to a compressor motor.
According to an embodiment of the application, a compressor is provided, which comprises a motor, wherein the motor is the motor.
According to an embodiment of the application, an electric appliance is provided, which comprises a compressor, wherein the compressor is the compressor.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (12)
1. A rotor core, comprising:
the iron core comprises an iron core body (1), wherein the iron core body (1) is formed by laminating first punching sheets (11); the diameter of the first punching sheet (11) is D3;
the axial extension part (2) is arranged at one end of the iron core body (1), and the axial extension part (2) is used for balancing weight; the axial extension part (2) is formed by laminating a second punching sheet (21); a blanking area is arranged on the outer peripheral wall of the second punching sheet (21); the minimum distance between the blanking area and the central axis of the second punching sheet (21) is R; wherein, R is D3/2.
2. The rotor core according to claim 1, wherein a positioning groove (211) is formed in the outer peripheral wall of the second punching sheet (21); in the central axis direction of the second punching sheet (21), the positioning groove (211) penetrates through the second punching sheet (21) to form the blanking area.
3. The rotor core according to claim 2, wherein on the surface of the second punching sheet (21), the area occupied by the groove bottom of the positioning groove (211) corresponds to a central angle θ; wherein theta is more than or equal to 0 and less than or equal to 60 degrees.
4. The rotor core according to claim 1, wherein the second stamped sheet (21) has a diameter of D1; wherein D1 ═ D3; the peripheral wall of the second punching sheet (21) forms the blanking area.
5. The rotor core according to claim 4, wherein a magnetic steel mounting area is arranged on the outer peripheral wall of the first punching sheet (11); the number of the magnetic steel mounting areas is set to be at least one; when the number of the magnetic steel mounting areas is more than two, the more than two magnetic steel mounting areas are sequentially arranged in the circumferential direction of the first punching sheet (11);
and/or when the number of the magnetic steel mounting areas is more than two, a circumferential limiting piece (111) is arranged between every two adjacent magnetic steel mounting areas;
and/or when the number of the magnetic steel mounting areas is set to be one, the peripheral wall of the first punching sheet (11) is the magnetic steel mounting area.
6. The rotor core according to claim 5, wherein the maximum distance between the circumferential limiting piece (111) and the central axis of the first punching sheet (11) is D2/2; wherein, D1 ═ D2;
and/or in the circumferential direction of the first punching sheet (11), the width of the circumferential limiting piece (111) is X, wherein X is more than or equal to 0 and less than 3.
7. The rotor core according to claim 2, wherein the number of the positioning grooves (211) is set to an even number; the positioning grooves (211) in even number are sequentially arranged in the circumferential direction of the second punching sheet (21).
8. A rotor structure comprising a rotor core, characterized in that the rotor core is a rotor core according to any one of claims 1-7.
9. The rotor structure according to claim 8, characterized in that it further comprises magnetic steel (3); when the outer peripheral wall of the first punching sheet (11) is provided with one magnetic steel mounting area, and the outer peripheral wall of the first punching sheet (11) is provided with one magnetic steel mounting area, the magnetic steel (3) is annular magnetic steel; the annular magnetic steel is sleeved outside the magnetic steel mounting area.
10. An electrical machine comprising a rotor structure, characterized in that the rotor structure is a rotor structure according to claim 9.
11. A compressor comprising an electric motor, wherein the electric motor is the electric motor of claim 10.
12. An electrical appliance comprising a compressor, wherein the compressor is the compressor of claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263563.1A CN112510871B (en) | 2020-11-12 | 2020-11-12 | Rotor core, rotor structure, motor, compressor and electric appliance with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263563.1A CN112510871B (en) | 2020-11-12 | 2020-11-12 | Rotor core, rotor structure, motor, compressor and electric appliance with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112510871A true CN112510871A (en) | 2021-03-16 |
| CN112510871B CN112510871B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011263563.1A Active CN112510871B (en) | 2020-11-12 | 2020-11-12 | Rotor core, rotor structure, motor, compressor and electric appliance with same |
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| Country | Link |
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| CN (1) | CN112510871B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113964975A (en) * | 2021-11-19 | 2022-01-21 | 广东美的智能科技有限公司 | Rotor core, rotor, motor and robot |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05328645A (en) * | 1992-05-25 | 1993-12-10 | Aichi Emerson Electric Co Ltd | Rotor of motor for compressor |
| EP1233503A2 (en) * | 2001-02-14 | 2002-08-21 | Koyo Seiko Co., Ltd. | Brushless DC motor and method of manufacturing brushless DC motor |
| US20160308409A1 (en) * | 2015-04-15 | 2016-10-20 | Denso Corporation | Rotor for rotating electric machine |
| CN206402010U (en) * | 2016-12-11 | 2017-08-11 | 华意压缩机股份有限公司 | It is a kind of to reduce the magnetic steel rotor structure of frequency-changeable compressor noise |
| CN207705910U (en) * | 2018-01-19 | 2018-08-07 | 广州万固压缩机有限公司 | A kind of anti-slip limit direct current compressor rotor |
| CN208028676U (en) * | 2017-12-30 | 2018-10-30 | 苏州爱知科技有限公司 | A kind of compressor electric motor and refrigeration equipment |
| CN110266130A (en) * | 2019-07-02 | 2019-09-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor, motor, compressor |
| CN209659030U (en) * | 2019-01-18 | 2019-11-19 | 长虹华意压缩机股份有限公司 | A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor |
-
2020
- 2020-11-12 CN CN202011263563.1A patent/CN112510871B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05328645A (en) * | 1992-05-25 | 1993-12-10 | Aichi Emerson Electric Co Ltd | Rotor of motor for compressor |
| EP1233503A2 (en) * | 2001-02-14 | 2002-08-21 | Koyo Seiko Co., Ltd. | Brushless DC motor and method of manufacturing brushless DC motor |
| US20160308409A1 (en) * | 2015-04-15 | 2016-10-20 | Denso Corporation | Rotor for rotating electric machine |
| CN206402010U (en) * | 2016-12-11 | 2017-08-11 | 华意压缩机股份有限公司 | It is a kind of to reduce the magnetic steel rotor structure of frequency-changeable compressor noise |
| CN208028676U (en) * | 2017-12-30 | 2018-10-30 | 苏州爱知科技有限公司 | A kind of compressor electric motor and refrigeration equipment |
| CN207705910U (en) * | 2018-01-19 | 2018-08-07 | 广州万固压缩机有限公司 | A kind of anti-slip limit direct current compressor rotor |
| CN209659030U (en) * | 2019-01-18 | 2019-11-19 | 长虹华意压缩机股份有限公司 | A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor |
| CN110266130A (en) * | 2019-07-02 | 2019-09-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor, motor, compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113964975A (en) * | 2021-11-19 | 2022-01-21 | 广东美的智能科技有限公司 | Rotor core, rotor, motor and robot |
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| CN112510871B (en) | 2021-11-09 |
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