CN105406617A - Motor core structure and air-conditioning compressor with same - Google Patents
Motor core structure and air-conditioning compressor with same Download PDFInfo
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- CN105406617A CN105406617A CN201510801275.XA CN201510801275A CN105406617A CN 105406617 A CN105406617 A CN 105406617A CN 201510801275 A CN201510801275 A CN 201510801275A CN 105406617 A CN105406617 A CN 105406617A
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- iron core
- core structure
- electric motor
- depressed part
- boss
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Abstract
The invention provides a motor core structure and an air-conditioning compressor with the same. The motor core structure comprises a main iron core body, a plurality of concave parts and lug bosses, wherein the concave parts are arranged on the outer peripheral surface of the main iron core body; the plurality of concave parts sink towards the center of the main iron core body along the radial direction respectively; the lug bosses are located in the concave parts; and a clearance is formed between the top surface of each lug boss and a shell of a motor. According to the motor core structure employing the technical scheme provided by the invention, the stress on the contact surface of the main iron core body and a main shell can be absorbed and guided; the stress is transferred to the lug bosses for accumulation; and the stress is eliminated on the outer peripheral edge of the motor core, so that the influence on magnetic domain distortion in a steel sheet of the motor core caused by the stress is reduced to the maximal extent; the eddy current loss caused by magnetic field turbulence is improved; the magnetic property of the motor is improved; motor heating is comprehensively lowered; and the power consumption is lowered.
Description
Technical field
The present invention relates to air-conditioning equipment field, in particular to a kind of iron core structure of electric motor and the compressor of air conditioner with it.
Background technology
At present, in compressor of air conditioner manufacturing process, compressor electric motor and the joint of main casing adopt hot jacket interference mode to coordinate usually, the contact-making surface of the electric machine iron core adopting which to engage and the shell wall of main casing can produce stress concentrate, thus cause the arrangement of the magnetic domain of electric machine iron core inside to be distorted, and then cause motor performance to worsen, cause iron core to generate heat serious simultaneously, reduce the operational efficiency of motor and compressor.See Fig. 1 and Fig. 2, for improving motor stress in prior art, except the suitable magnitude of interference of design, corresponding realize eliminating motor stress with the special construction of stress transfer for absorbing by designing at electric machine iron core 1 periphery and the composition surface place of main casing 2.Such as, as shown in Figure 1, multiple equally distributed recessed fillet 3 is set at electric machine iron core 1 neighboring place.Or, as shown in Figure 2, multiple circular hole 4 is vertically set at electric machine iron core 1 neighboring place.By these measures, the effect absorbing stress or realize stress transfer can be realized to a certain extent.But in actual application, above-mentioned special construction remains in the problem of poor effect that eliminates stress.
The special construction designed for the composition surface place at electric machine iron core periphery and main casing in prior art eliminates stress the technical problem of poor effect, not yet proposes effective solution at present.
Summary of the invention
Main purpose of the present invention is the compressor of air conditioner providing a kind of iron core structure of electric motor and have it, to eliminate stress the technical problem of poor effect at least to solve the special construction designed at the composition surface place of electric machine iron core periphery and main casing in prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of iron core structure of electric motor, comprising: iron core main body; Depressed part, be arranged on the outer peripheral face of iron core main body, wherein, depressed part is provided with multiple, and the center of multiple depressed part radially respectively to iron core main body is recessed; Boss, is positioned at depressed part, has gap between the end face of boss and the housing of motor.
Further, depressed part is symmetrical along the circumference of iron core main body.
Further, boss is positioned at the center of depressed part.
Further, the two ends of depressed part have transition face respectively, have curved transition sections respectively between the root of boss both sides and transition face.
Further, on the root of boss and the junction point of the curved transition sections line between two end points at depressed part edge.
Further, transition face is plane, and the line between transition face and two end points at depressed part edge has angle β, and the span of angle β is: 5 °≤β≤15 °.
Further, curved transition sections is arc surface, and the span of the radius R of arc surface is: 0.5mm≤R≤2mm.
Further, the top surface of boss is plane, and to be the span of c, c be the root of boss and the junction point of curved transition sections to the height of boss end face: 0≤c≤3mm.
Further, depressed part is a along the width of the circumference of iron core main body, and the span that boss is b, b/a along the width of the circumference of iron core main body is: 0.3≤b/a≤0.618.
According to a further aspect in the invention, provide a kind of compressor of air conditioner, comprise iron core structure of electric motor, the iron core structure of electric motor of this iron core structure of electric motor any one of foregoing.
Apply the iron core structure of electric motor of technical scheme of the present invention, by arranging multiple depressed part on the outer peripheral face of iron core main body, the center of multiple depressed part radially respectively to iron core main body is recessed, in depressed part, there is boss, thus the stress in iron core main body and main casing contact-making surface can be carried out absorb and lead, stress transfer is put aside to boss place, stress is cleared up the neighboring at electric machine iron core, thus reduce stress to greatest extent to the impact of magnetic domain distortion in electric machine iron core steel disc, improve the eddy current loss that magnetic field turbulent flow causes, the magnetic property of lifting motor, the motor feels hot in comprehensive reduction, reduce power consumption.Solve the special construction designed at the composition surface place of electric machine iron core periphery and main casing in prior art to eliminate stress the technical problem of poor effect.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The Figure of description forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of existing a kind of iron core structure of electric motor;
Fig. 2 is the schematic diagram of existing another kind of iron core structure of electric motor;
Fig. 3 is the schematic diagram according to the optional a kind of iron core structure of electric motor of the embodiment of the present invention;
Fig. 4 is the partial schematic diagram according to the optional a kind of iron core structure of electric motor of the embodiment of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, iron core main body; 20, boss; 30, housing; 40, transition face; 50, curved transition sections.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
According to the iron core structure of electric motor of the embodiment of the present invention, as shown in Figure 3, comprising: iron core main body 10, depressed part and boss 20; Depressed part is arranged on the outer peripheral face of iron core main body 10, and wherein, depressed part is provided with multiple, and the center of multiple depressed part radially respectively to iron core main body 10 is recessed; Boss 20 is positioned at depressed part, and has gap between the housing 30 of the end face of boss 20 and motor.
Apply a kind of iron core structure of electric motor of technical scheme of the present invention, by arranging multiple depressed part on the outer peripheral face of iron core main body 10, the center of multiple depressed part radially respectively to iron core main body 10 is recessed, there is boss 20 in depressed part, thus iron core main body 10 and the stress on main casing 30 contact-making surface can be carried out absorbing and leading, stress transfer is put aside to boss 20 place, stress is cleared up the neighboring at electric machine iron core, thus reduce stress to greatest extent to the impact of magnetic domain distortion in electric machine iron core steel disc, improve the eddy current loss that magnetic field turbulent flow causes, the magnetic property of lifting motor, the motor feels hot in comprehensive reduction, reduce power consumption.Solve the special construction designed at the composition surface place of electric machine iron core periphery and main casing in prior art to eliminate stress the technical problem of poor effect.
During concrete enforcement, depressed part is symmetrical along the circumference of iron core main body 10, and boss 20 is positioned at the center of depressed part.As shown in Figure 4, the two ends of depressed part have transition face 40 respectively, and transition face 40 is plane, and the line between transition face 40 and two end points at depressed part edge has angle β, thus transition face 40 is tilted to both sides slightly by the root of boss 20 both sides.Housing 30 can be loaded into stress transfer in iron core main body 10 on boss 20 by transition face 40.The span of angle β is: 5 °≤β≤15 °, and the value of angle β is larger, and the transfer effect of transition face 40 counter stress is better.When actual production, when the hot jacket magnitude of interference is at≤10s, the span of angle β is chosen as 5 °≤β≤10 °; When the hot jacket magnitude of interference is at > 10s, the span of angle β is chosen as 10 °≤β≤15 °.10s reflects iron core main body 10 and is of a size of 0.1mm with the extruding of housing 30 mistake, is a threshold values of the distortion of electric machine iron core silicon steel magnetic domain crystal boundary and performance impact.
Have curved transition sections 50 respectively between the root of boss 20 both sides and transition face 40, curved transition sections 50 can absorb and lead stress, on the root of boss 20 and the junction point of curved transition sections 50 line between two end points at depressed part edge.Alternatively, curved transition sections 50 is arc surface, and the span of the radius R of arc surface is: 0.5mm≤R≤2mm.The value of the radius R of arc surface is larger, the absorption of its counter stress and guide effect better.When actual production, also different according to the value of the different R of the hot jacket magnitude of interference.When the hot jacket magnitude of interference is at≤10s, 0.5mm≤R≤1mm; When the hot jacket magnitude of interference is at > 10s, 1mm≤R≤2mm.
Alternatively, the top surface of boss 20 is plane, and boss 20 can put aside stress, clears up stress at the edge of iron core main body 10.The root of boss 20 and the junction point of curved transition sections 50 to the height of boss 20 end face is that the value of c, c is larger, and namely the height of boss 20 is higher, and the depot action of counter stress is better.The span of c is: 0≤c≤3mm.When actual production, also different according to the value of the different c of the hot jacket magnitude of interference.When the hot jacket magnitude of interference is at≤10s, c=0mm; When the hot jacket magnitude of interference is at > 10s, 0mm < c≤3mm.
Further, depressed part is a along the width of the circumference of iron core main body 10, and the span that boss 20 is b, b/a along the width of the circumference of iron core main body 10 is: 0.3≤b/a≤0.618.The value of b/a is larger, and the effect of clearing up of counter stress is better.When actual production, also different according to the value of the different b/a of the hot jacket magnitude of interference.When the hot jacket magnitude of interference is at≤10s, 0.3≤b/a≤0.5; When the hot jacket magnitude of interference is at > 10s, 0.5≤b/a≤0.618.
According to a further aspect in the invention, provide a kind of compressor of air conditioner, comprise iron core structure of electric motor, the iron core structure of electric motor of iron core structure of electric motor any one of foregoing, the motor feels hot to use the compressor of this iron core structure of electric motor comprehensively to reduce, and reduces power consumption.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an iron core structure of electric motor, is characterized in that, comprising:
Iron core main body (10);
Depressed part, be arranged on the outer peripheral face of described iron core main body (10), wherein, described depressed part is provided with multiple, and the center of multiple described depressed part radially respectively to described iron core main body (10) is recessed;
Boss (20), is positioned at described depressed part, has gap between the end face of described boss (20) and the housing (30) of motor.
2. iron core structure of electric motor according to claim 1, is characterized in that, described depressed part is symmetrical along the circumference of described iron core main body (10).
3. iron core structure of electric motor according to claim 2, is characterized in that, described boss (20) is positioned at the center of described depressed part.
4. iron core structure of electric motor according to claim 2, it is characterized in that, the two ends of described depressed part have transition face (40) respectively, have curved transition sections (50) respectively between the root of described boss (20) both sides and described transition face (40).
5. iron core structure of electric motor according to claim 4, is characterized in that, on the root of described boss (20) and the junction point of described curved transition sections (50) line between two end points at described depressed part edge.
6. iron core structure of electric motor according to claim 4, it is characterized in that, described transition face (40) is plane, line between described transition face (40) and two end points at described depressed part edge has angle β, and the span of described angle β is: 5 °≤β≤15 °.
7. iron core structure of electric motor according to claim 4, is characterized in that, described curved transition sections (50) is arc surface, and the span of the radius R of described arc surface is: 0.5mm≤R≤2mm.
8. iron core structure of electric motor according to claim 4, it is characterized in that, the top surface of described boss (20) is plane, the root of described boss (20) and the junction point of described curved transition sections (50) are c to the height of described boss (20) end face, and the span of described c is: 0≤c≤3mm.
9. iron core structure of electric motor according to claim 2, it is characterized in that, described depressed part is a along the width of the circumference of described iron core main body (10), described boss (20) is b along the width of the circumference of described iron core main body (10), and the span of described b/a is: 0.3≤b/a≤0.618.
10. a compressor of air conditioner, comprises iron core structure of electric motor, it is characterized in that, the iron core structure of electric motor of described iron core structure of electric motor according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801275.XA CN105406617B (en) | 2015-11-18 | 2015-11-18 | Iron core structure of electric motor and compressor of air conditioner with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801275.XA CN105406617B (en) | 2015-11-18 | 2015-11-18 | Iron core structure of electric motor and compressor of air conditioner with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406617A true CN105406617A (en) | 2016-03-16 |
| CN105406617B CN105406617B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510801275.XA Active CN105406617B (en) | 2015-11-18 | 2015-11-18 | Iron core structure of electric motor and compressor of air conditioner with it |
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| CN202997899U (en) * | 2012-12-18 | 2013-06-12 | 上海熠威电驱动科技有限公司 | Stator & rotor that can be positioned and is used for direct current brushless motor |
| CN103187808A (en) * | 2011-12-28 | 2013-07-03 | 富士通将军股份有限公司 | Electric motor |
| CN103618391A (en) * | 2013-12-18 | 2014-03-05 | 苍南县华仲机电有限公司 | Ten-pole twelve-groove permanent magnet brushless motor |
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| CN204732977U (en) * | 2015-06-09 | 2015-10-28 | 广东美芝制冷设备有限公司 | Motor and the compressor with it |
| CN205622349U (en) * | 2015-11-18 | 2016-10-05 | 珠海凌达压缩机有限公司 | Motor core structure and have its air condition compressor |
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2015
- 2015-11-18 CN CN201510801275.XA patent/CN105406617B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002112475A (en) * | 2000-09-26 | 2002-04-12 | Hitachi Ltd | Permanent magnet rotating electric machine, air compressor and power generator using it |
| CN201307784Y (en) * | 2008-05-26 | 2009-09-09 | 王玉莲 | Submersible electric pump motor iron core silicon-steel sheet |
| CN101666279A (en) * | 2008-09-03 | 2010-03-10 | 德昌电机(深圳)有限公司 | Fuel pump |
| JP2012023879A (en) * | 2010-07-15 | 2012-02-02 | Daikin Ind Ltd | Magnetic core of armature and rotary electric machine |
| CN103187808A (en) * | 2011-12-28 | 2013-07-03 | 富士通将军股份有限公司 | Electric motor |
| CN202997899U (en) * | 2012-12-18 | 2013-06-12 | 上海熠威电驱动科技有限公司 | Stator & rotor that can be positioned and is used for direct current brushless motor |
| CN103618391A (en) * | 2013-12-18 | 2014-03-05 | 苍南县华仲机电有限公司 | Ten-pole twelve-groove permanent magnet brushless motor |
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| CN205622349U (en) * | 2015-11-18 | 2016-10-05 | 珠海凌达压缩机有限公司 | Motor core structure and have its air condition compressor |
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| Publication number | Publication date |
|---|---|
| CN105406617B (en) | 2018-09-18 |
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Effective date of registration: 20180929 Address after: No. six, Qianshan Jinji West Road, Zhuhai, Guangdong Province Co-patentee after: Zhuhai Landa Compressor Co., Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519110 Longshan Avenue, Longshan Industrial Zone, Doumen District, Zhuhai, Guangdong, 1 Co-patentee before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Patentee before: Zhuhai Landa Compressor Co., Ltd. |
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