CN1980015A - Rotor structure of single-phase inducing motor for compressor - Google Patents
Rotor structure of single-phase inducing motor for compressor Download PDFInfo
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- CN1980015A CN1980015A CN 200510122174 CN200510122174A CN1980015A CN 1980015 A CN1980015 A CN 1980015A CN 200510122174 CN200510122174 CN 200510122174 CN 200510122174 A CN200510122174 A CN 200510122174A CN 1980015 A CN1980015 A CN 1980015A
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Abstract
In the disclosed induction motor, Rotor includes iron core of rotor, and cage winding. Being as electroconductive part, the cage winding possesses bar conductors, end ring portion, and balance weight portion. Axle hole is formed on center of iron core of rotor as well as on center of each sheet of iron core, and there are radial distributed through notches on external circumferencial direction. Stacking up insulative sheets of iron core produces iron core of rotor. Technological parameters of sheet of iron core of rotor are as following: B/W 0.533-0.589, T/B 0.222-0.231, H/B 0.719-0.794. Meanings of each letter are: B width of rotor yoke, T space between through notches, W distance between inner diameter and outer diameter of rotor, H length of through notch. The invention raises efficiency of motor, speed of rotor, and maximum torque.
Description
Technical field
The invention belongs to the compressor electric motor field, particularly relate to and a kind ofly can improve electric efficiency, improve the rotor structure of the cooler compressor of rotor revolution number and Max. torque with single-phase inducing motor.
Background technology
Compressor is the important composition parts that air conditioner, refrigerator etc. utilize the household electrical appliance of cooling cycle system work.The rolling piston of compressor changes mechanical energy into the pressure energy under the drive of motor, realize the compression to the compresser cylinder inner refrigerant.Motor converts electrical energy into the rotary machine energy by the rotation of corresponding component under the current field effect, for the running of compressor provides power.Therefore, motor is the vitals of compressor, and its behavior in service directly influences the function performance of compressor.
In general, motor is made up of stator and rotor two parts, and stator and rotor are made of the stacked iron core that forms of silicon steel core sheet respectively.Single stator lamination is circular, is cylindric by the stacked stator core that constitutes of lamination.Rotor is cylindric, and rotor directly is pressed on the bent axle and inserts in the cylinder cavity of stator core, has air-gap to be separated by between rotor and the stator.Embed the winding of enamelled wire coiled on the stator, stator winding outside source current by the time produce magnetic field.Rotor interacts with stator field when having electric current to pass through, and the generation electromagnetic torque also rotates in stator.
The household electrical appliance that power is slightly little as window air conditioner, wall-hanging air conditioner etc., adopt monophase machine mostly.Be not with the enamelled wire winding on the monophase machine rotor, the electric current in the rotor is not supplied with by external power, but is induced by stator field, and induced current and former magnetic field interaction make rotor rotation.
Rotor comprises:. rotor core, cage type winding portion.Cage type winding portion has several stubs, end ring portion and counterweight portion.Rotor core is formed with axis hole in inside, and the exterior periphery direction is shaped on several grooves that radially distributes.Rotor core is laminated by the insulation of circular iron core sheet, and every lamination also has groove and axis hole.
There is following problem in the rotor core of prior art:
The groove shape of cross section of the rotor lamination of prior art is that the big end of periphery is wide, and to the short and thick shape that the center of circle narrows down gradually, area is little.As Fig. 2, shown in Figure 3, the technical parameter of rotor lamination is as follows:
B：13.75 W：20.5 H：6.4 T：2.41
B/W＝0.6707
T/B＝0.1753
H/B＝0.4655
Wherein the implication of each letter representative is as follows:
B: the width T of rotor yoke: the spacing of groove
W: the rotor internal diameter is to the distance H of external diameter: the length of groove
The lamination of rotor core is because the groove area is little, and groove inner wire rod resistance is big, and rotor easily generates heat, thereby causes electric efficiency low.And the stub volume is little, and the induced current of stub is less than normal, so rotor revolution number and peak torque are on the low side.
Summary of the invention
The present invention can improve electric efficiency for the technical problem that exists in the solution known technology provides a kind of, improves the rotor structure of the single-phase inducing motor for compressor of rotor revolution number and Max. torque.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: the rotor structure of single-phase inducing motor for compressor of the present invention, and rotor comprises: rotor core, cage type winding portion; Cage type winding portion is an electroconductive component, has several stubs, end ring portion and counterweight portion; Rotor core is formed with axis hole in inside, and the exterior periphery direction is shaped on several grooves that radially distributes; Rotor core is laminated by circular iron core sheet insulation, and every lamination externally circumferencial direction is shaped on the groove that several radially distribute, and there is axis hole the centre; The technical parameter of its lamination is as follows:
0.533≤B/W≤0.589
0.222≤T/B≤0.231
0.719≤H/B≤0.794
Wherein the implication of each letter representative is as follows:
B: the width T of rotor yoke: the spacing of groove
W: the rotor internal diameter is to the distance H of external diameter: the length of groove
The present invention can also adopt following technical measures:
The technical parameter of described embodiment lamination is to select following parameter for use:
B：11.5 W：20.5 H：8.7 T：2.6
B/W＝0.561
T/B＝0.2261
H/B＝0.7565
Advantage and good effect that the present invention has are:
Adopt the single-phase inducing motor for compressor of rotor structure of the present invention, because rotor groove area becomes big, rotor groove inner wire rod resistance reduces, thereby electric efficiency rises.And it is big that the stub volume becomes, and induced current increases, and rotor speed and peak torque improve.
Description of drawings
Fig. 1 is the rotor sectional arrangement drawing of inducing motor;
Fig. 2 is prior art lamination planform figure;
Fig. 3 is prior art groove shape figure;
Fig. 4 is lamination planform figure of the present invention;
Fig. 5 is groove shape figure of the present invention.
Embodiment
It is following that the present invention will be described in detail with reference to drawings and Examples.
The rotor structure of single-phase inducing motor for compressor of the present invention, as shown in Figure 1, rotor comprises:. rotor core 4, cage type winding portion 5.Cage type winding portion is an electroconductive component, has several cast aluminium stubs 3, end ring portion 2 and counterweight portion 1; Rotor core is formed with axis hole 7 in central authorities, and the exterior periphery direction is shaped on several grooves that radially distributes 6; Rotor core is laminated by circular iron core sheet insulation, and every lamination externally circumferencial direction is shaped on the groove that several radially distribute, and there is axis hole in central authorities.As Fig. 4, shown in Figure 5, the technical parameter of rotor lamination is as follows:
0.533?≤B/W≤0.589
0.222?≤T/B≤0.231
0.719?≤H/B≤0.794
Wherein the implication of each letter representative is as follows:
B: the width T of rotor yoke: the spacing of groove
W: the rotor internal diameter is to the distance H of external diameter: the length of groove
The technical parameter of present embodiment lamination is to select following parameter for use:
B：11.5 W：20.5 H：8.7 T：2.6
B/W＝0.561
T/B＝0.2261
H/B＝0.7565
After the present embodiment lamination was made according to top technical parameter, the shape of groove became longer, so the change of rotor groove area is big, and rotor groove inner wire rod resistance reduces, thereby electric efficiency rises.And it is big that the stub volume becomes, and induced current increases, and rotor speed and peak torque improve.
The groove of present embodiment lamination when punching press, every punching press a slice, silicon steel sheet will turn an angle, certain angle is just changeed in the arrangement of groove.When lamination by the stacked rotor core that is assembled into of insulation, groove to lower end inclination certain angle, becomes the shape of stub 3 as shown in fig. 1 from rotor upper end behind the cast aluminium stub.
Claims (2)
1, a kind of rotor structure of single-phase inducing motor for compressor, rotor comprises:. rotor core, cage type winding portion; Cage type winding portion is an electroconductive component, has several stubs, end ring portion and counterweight portion; Rotor core is formed with axis hole in central authorities, and the exterior periphery direction is shaped on several grooves that radially distributes; Rotor core is laminated by circular iron core sheet insulation, and every lamination externally circumferencial direction is shaped on the groove that several radially distribute, and there is axis hole in central authorities; The technical parameter that it is characterized in that lamination is as follows:
0.533≤B/W≤0.589
0.222≤T/B≤0.231
0.719≤H/B≤0.794
Wherein the implication of each letter representative is as follows:
B: the width T of rotor yoke: the spacing of groove
W: the rotor internal diameter is to the distance H of external diameter: the length of groove.
2, the rotor structure of single-phase inducing motor for compressor according to claim 1 is characterized in that the technical parameter of lamination is preferably selected following parameter for use:
B：11.5 W：20.5 H：8.7 T：2.6
B/W＝0.561
T/B＝0.2261
H/B＝0.7565。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122174 CN1980015A (en) | 2005-12-05 | 2005-12-05 | Rotor structure of single-phase inducing motor for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122174 CN1980015A (en) | 2005-12-05 | 2005-12-05 | Rotor structure of single-phase inducing motor for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1980015A true CN1980015A (en) | 2007-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510122174 Pending CN1980015A (en) | 2005-12-05 | 2005-12-05 | Rotor structure of single-phase inducing motor for compressor |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016074828A1 (en) * | 2014-11-13 | 2016-05-19 | Robert Bosch Gmbh | Electric machine |
| CN105673487A (en) * | 2016-01-28 | 2016-06-15 | 珠海凌达压缩机有限公司 | Air conditioner, compressor and rotor thereof |
| DE102019127072A1 (en) * | 2019-10-09 | 2021-04-15 | Bayerische Motoren Werke Aktiengesellschaft | Efficient asynchronous machine for electric vehicles |
-
2005
- 2005-12-05 CN CN 200510122174 patent/CN1980015A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016074828A1 (en) * | 2014-11-13 | 2016-05-19 | Robert Bosch Gmbh | Electric machine |
| EP3219000B1 (en) | 2014-11-13 | 2019-11-06 | Robert Bosch GmbH | Electric machine |
| US10770956B2 (en) | 2014-11-13 | 2020-09-08 | Robert Bosch Gmbh | Electric machine |
| CN105673487A (en) * | 2016-01-28 | 2016-06-15 | 珠海凌达压缩机有限公司 | Air conditioner, compressor and rotor thereof |
| CN105673487B (en) * | 2016-01-28 | 2018-09-07 | 珠海凌达压缩机有限公司 | Air conditioner, compressor and rotor thereof |
| DE102019127072A1 (en) * | 2019-10-09 | 2021-04-15 | Bayerische Motoren Werke Aktiengesellschaft | Efficient asynchronous machine for electric vehicles |
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