CN209659030U - A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor - Google Patents
A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor Download PDFInfo
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- CN209659030U CN209659030U CN201920082673.4U CN201920082673U CN209659030U CN 209659030 U CN209659030 U CN 209659030U CN 201920082673 U CN201920082673 U CN 201920082673U CN 209659030 U CN209659030 U CN 209659030U
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- magnetic shoe
- rotor core
- inverter compressor
- compressor motor
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Abstract
The utility model discloses a kind of rotor cores and magnetic shoe structure applied to refrigerator inverter compressor motor, are related to the technical field of the motor manufacturing, and rotor core is made of the first punching and the second punching being fixed in the first punching；One bottom surface of the second punching is connect with one bottom surface of the first punching；Each side of second punching is joint face；Basal diameter length of the bottom surface catercorner length of second punching less than the first punching；The inner surface of magnetic shoe is a perpendicular；The inner surface of magnetic shoe is fixedly connected by glue with the joint face of the second punching；There is upper cover plate in second punching upper surface by rivet interlacement；The cylindrical hole through second two bottom surfaces of punching is offered in second punching, on same straight line, the utility model has many advantages, such as strong anti-demagnetization capability, has good noise reducing ability, using compressor electric motor upward stability is strong, reduction Compressor Manufacturing cost for the central axes of the central axes of through-hole and the second punching.
Description
Technical field
The utility model relates to the technical fields that motor is manufactured, in particular to a kind of to be applied to refrigerator frequency-changeable compressor
The rotor core and magnetic shoe structure of motor.
Background technique
Frequency conversion refrigerator is freezer compressor using single-phase AC motor as driving motor, and single-phase AC motor uses frequency conversion
Power supply, thus the refrigerator that a kind of technology for adjusting the refrigerating capacity of compressor is produced；When thermic load is big, compressor refrigeration
Amount is big, and thermic load hour, compressor refrigerating capacity is small, to improve evaporating temperature, reduce power consumption；Therefore compressor is frequency conversion ice
A very crucial component of case, and the core of compressor is the motor of compressor.
The rotor structure of usual frequency conversion refrigerator compressor electric motor part includes built-in rotor and surface-mounted rotor；At present originally
The variable-frequency motor rotor that company uses is surface-mount type magnetic shoe rotor, and magnetic shoe 1 (Fig. 5) is set together with rotor core 3 (Fig. 5),
Again by the fixed position upper end cover 4 (Fig. 5) and lower cover 5 (Fig. 5), and with rivet 6 (Fig. 5) by rotor core 3 (Fig. 5), upper end
Lid 4 (Fig. 5) and lower cover 5 (Fig. 5) assembly are an entirety；Due to the magnetic shoe inner-outer of most refrigerator inverter compressor motor
Surface is all concentric design, causes magnetic shoe integral thickness consistent, but actual operating condition is the main median plane in magnetic shoe
On, the magnetic circuit of magnetic shoe two sides is not subject to the impact of heavy current in operational process；But pressure can be reached in guarantee magnetic shoe performance
Also need to guarantee that the heavy current generated during compressor start not will lead to magnetic shoe and go out in the case where the electromechanical machine performance requirement of contracting
It now demagnetizes situation；So not only to consider its remanent magnetism Br when selecting magnetic shoe, the intrinsic coercivity Hcj for considering magnetic shoe is also needed, this
To guarantee that surplus, the price of magnetic shoe will be promoted if sample, production cost is increased, the enterprise of large-scale production is unfavorable for.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of rotors applied to refrigerator inverter compressor motor
Iron core and magnetic shoe structure, to solve the above-mentioned many defects caused by the prior art.
It is a kind of applied to refrigerator frequency-changeable compressor that achieve the above objectives, the present invention provides the following technical solutions:
The rotor core and magnetic shoe structure of motor, including
Rotor core, the rotor core are made of the first punching and the second punching being fixed in the first punching；It is described
Second punching is positive hexagonal prism, and first punching is the hollow cylinder bodily form；One bottom surface of second punching and the first punching
The connection of one bottom surface of piece, and the center of circle of two bottom surface of the central axes of the second punching Jing Guo the first punching；Second punching it is every
A side is joint face；Basal diameter length of the bottom surface catercorner length of second punching less than the first punching；
Magnetic shoe, the inner surface of the magnetic shoe is a perpendicular, and the outer surface of magnetic shoe is an arc surface；The magnetic shoe
Inner surface is fixedly connected by glue with the joint face of the second punching；
There are upper cover plate in upper cover plate, second punching upper surface by rivet interlacement, for limit magnetic shoe to perpendicular to
The direction of plane is mobile where cover board；
The cylindrical hole through second two bottom surfaces of punching, the central axes of the through-hole are offered in second punching
Central axes with the second punching are on same straight line, and the bottom surface radius of through-hole is greater than the inner wall radius of the first punching.
It is preferred: bar shaped demarcation plate to be provided on the incline of second punching, and demarcation plate is along incline extending direction
Distribution.
Preferred: first punching, the second punching and demarcation plate are fabricated for integration.
Preferred: the magnetic shoe further includes upper bottom surface, bottom surface and two sides, and the side of magnetic shoe and demarcation plate are tight
Patch；Wherein the bottom surface of the magnetic shoe is close to the first punching, and the upper bottom surface of the magnetic shoe is flushed with the upper bottom surface of the second punching.
Preferred: the incrementss of the magnetic shoe thickness are not higher than 1.55mm.
It is preferred: each side of magnetic shoe respectively with magnetic shoe inner surface, outer surface, upper bottom surface, bottom surface junction
It is provided with chamfering, the magnetic shoe inner surface is provided with chamfering with the junction of magnetic shoe upper bottom surface, bottom surface respectively, outside the magnetic shoe
Junction of the surface respectively with magnetic shoe upper bottom surface, bottom surface is provided with chamfering.
Be using the beneficial effect of above technical scheme: the application is by changing the arc-shaped surface structure of magnetic shoe inner surface
At perpendicular structure, increase the thickness of each position of magnetic shoe on the whole, in the case where guaranteeing remanent magnetism and intrinsic coercivity,
Magnetic flux is promoted, and magnetic shoe thickness increases corresponding anti-demagnetization capability and is also obviously improved, and the efficiency of motor gets a promotion, this kind of magnetic
Tile structure is conducive to reduce the electromagnetic noise in motor operation, improves the stability in motor operation course.
Detailed description of the invention
Fig. 1 is that the utility model is a kind of applied to the rotor core of refrigerator inverter compressor motor and the main view of magnetic shoe structure
Figure.
Fig. 2 is the sectional view of the line B-B of the utility model Fig. 1.
Fig. 3 is the structural schematic diagram of the utility model rotor core.
Fig. 4 is the structural schematic diagram of the utility model magnetic shoe.
Fig. 5 is the structural schematic diagram of magnetic shoe and rotor core in the prior art.
Wherein: rotor core 10, the first punching 100, the second punching 110, joint face 111, demarcation plate 112, through-hole 113,
Magnetic shoe 20, inner surface 201, outer surface 202, upper bottom surface 203, bottom surface 204, side 205, chamfering 206, upper cover plate 30, lower end
Lid 40, rivet 50.
Specific embodiment
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
It should be understood that the side of prism: remaining each face in prism in addition to two bottom surfaces is all called prism
Side；The incline of prism: the common edge of two sides is called the incline of prism in prism.
As shown in Figs 1-4, the utility model discloses a kind of rotor core applied to refrigerator inverter compressor motor with
Magnetic shoe structure, including
Rotor core 10, the second punching that the rotor core 10 punching 100 and be fixed in the first punching 100 by first
110 compositions；Second punching 110 is positive hexagonal prism, and first punching 100 is the hollow cylinder bodily form；Second punching
One bottom surface of piece 110 is connect with 100 1 bottom surface of the first punching, and the central axes of the second punching 110 Jing Guo the first punching 100 two
The center of circle of a bottom surface；Each side of second punching 110 is joint face 111；The bottom surface diagonal line of second punching 110
Basal diameter length of the length less than the first punching 100；
Magnetic shoe 20, the inner surface 201 of the magnetic shoe 20 is a perpendicular, and the outer surface 202 of magnetic shoe 20 is a circular arc
Face；The inner surface of the magnetic shoe 20 is fixedly connected by glue with the joint face 111 of the second punching 110；
Second punching, 110 upper and lower surfaces are connected separately with upper cover plate 30 and lower cover 40 by rivet 50,
It is mobile to the direction perpendicular to horizontal plane for limiting magnetic shoe 20；
The cylindrical hole 113 through second 110 two bottom surfaces of punching is offered in second punching 110, it is described logical
The central axes in hole 113 and the central axes of the second punching 110 are on same straight line, and the bottom surface radius of through-hole 113 is greater than first
The inner wall radius of punching 100.
In the present embodiment when in use, such as Fig. 5, by the circular arc of the inner surface 2 of the magnetic shoe 1 in current refrigerator compressor electric motor
Face becomes perpendicular, which is to be obtained by increasing by 1 thickness of magnetic shoe, rather than reduced to obtain to 1 thickness of magnetic shoe；So
Perpendicular will be shortened into arc surface that rotor core 3 in the prior art is contacted with the inner surface 2 of magnetic shoe 1 afterwards, after obtaining improvement
As in Fig. 2-4 magnetic shoe 20 and rotor core 10, then by the joint face 111 of the inner surface 201 of magnetic shoe 20 and the second punching 110
It is sticky in together by glue；Then by the upper cover plate 30 being arranged in 110 upper bottom surface of the second punching, magnetic shoe 20 is limited to vertical
It is mobile in the direction of 30 place plane of upper cover plate, then the first punching 100 by being arranged in 110 bottom surface of the second punching, due to
The bottom surface radius of through-hole 113 be greater than the first punching 100 inner wall radius, by the first punching 100 limit magnetic shoe 20 to perpendicular to
The direction of first punching, 100 place plane is mobile, increases the stability of motor operation.
The following are experimental datas one: (wherein old-fashioned rotor assembly is the prior art, novel rotor assembly to electric efficiency data
For the technology of the application)
By above-mentioned data it is found that electric efficiency is obviously improved, so that electric efficiency surplus increases, Ke Yishi
Original electric efficiency requirement can be reached when reducing coil turn, in this case further reduce demagnetization risk, it can also
Can reach original electric efficiency requirement by the remanent magnetism for reducing magnetic shoe, the cost of such magnetic shoe is declined again.
The following are demagnetization experimental datas two: the anti-demagnetization capability of magnetic shoe is proportional, magnetic shoe thickness with magnetic shoe thickness
Increase corresponding anti-demagnetization capability and is also obviously improved that (wherein old-fashioned rotor assembly is the prior art, novel rotor assembly is the application
Technology)
Magnetic shoe structure in the application is conducive to reduce the electromagnetic noise in motor operation, improves in motor operation course
Stability, complete machine noise decline, complete machine oscillation decline；0.1 yuan is improved to guarantee surplus using every magnetic shoe price of grade magnetic shoe is proposed,
Motor integrally improves 0.6 yuan, and motor overall price improves 0.1 yuan if using new-type magnetic shoe, if only motor is needed to meet efficiency
Remanent magnetism can be reduced, price may also can decrease.This kind of structure can accomplish that anti-demagnetization takes into account with noise reduction and cost optimization
Embodiment two
Optimal technical scheme as embodiment one: such as Fig. 2, Fig. 4, item is provided on the incline of second punching 110
Shape demarcation plate 112, and demarcation plate 112 is distributed along incline extending direction.
The technical solution of the present embodiment can effectively be made by the demarcation plate 112 being arranged in the second punching 110
Magnetic shoe 20 connect with rotor core 10 it is even closer with it is firm, increase the stability of motor operation.
Embodiment three
Optimal technical scheme as embodiment one: such as Fig. 4, first punching 100, the second punching 110 and demarcation plate
112 are fabricated for integration.
The technical solution of the present embodiment, by its stability of rotor core 10 made of being integrated than it is modular more
By force.
Example IV
Optimal technical scheme as embodiment three: such as Fig. 2-3, the magnetic shoe 20 further includes upper bottom surface 203, bottom surface
204 and two sides 205, and the side of magnetic shoe 20 is close to demarcation plate 112；The wherein bottom surface 204 of the magnetic shoe 20 and
One punching 100 is close to, and the upper bottom surface 203 of the magnetic shoe 20 is flushed with the upper bottom surface of the second punching 110.
The technical solution of the present embodiment, it is when installing magnetic shoe 20, the bottom surface 204 of magnetic shoe 20 and the first punching 100 is tight
Patch；Two sides 205 of magnetic shoe 20 are close to demarcation plate 112；The height with the second punching 110 is set by the height of magnetic shoe 20
It spends identical, the upper bottom surface 203 of magnetic shoe 20 is close to upper cover plate 30；Magnetic shoe 20 can be increased by above-mentioned structure to pacify
The stabilization of assembling structure prevents motor vibration from magnetic shoe 20 being made to fall off.
Embodiment five
Optimal technical scheme as embodiment any one in embodiment one to four: the incrementss of 20 thickness of magnetic shoe are not
Higher than 1.55mm.
The technical solution of the present embodiment, by by the increment control algorithm of 20 thickness of magnetic shoe in a certain range so that motor exists
It is more stable in operational process.
Embodiment six
Optimal technical scheme as embodiment five: such as Fig. 3, each side 205 of the magnetic shoe 20 respectively with magnetic shoe 20
Inner surface 201, outer surface 202, upper bottom surface 203, bottom surface 204 junction be provided with chamfering 206, the interior table of the magnetic shoe 20
Face 201 is provided with chamfering 206, the appearance of the magnetic shoe 20 with the junction of the upper bottom surface 203 of magnetic shoe 20, bottom surface 204 respectively
Junction of the face 202 respectively with the upper bottom surface 203 of magnetic shoe 20, bottom surface 204 is provided with chamfering 205.
The technical solution of the present embodiment, by the way that junction of the magnetic shoe 20 above between face is arranged to chamfering 206, not only
The burr of magnetic shoe 20 can be removed, also can be improved the efficiency of installation.
Above-described is only preferred embodiments of the present invention, it is noted that for the ordinary skill of this field
For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.
Claims (6)
1. a kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor, including rotor core, feature exist
In: the rotor core is made of the first punching and the second punching being fixed in the first punching；Second punching is positive six
Prism, first punching are the hollow cylinder bodily form；One bottom surface of second punching is connect with one bottom surface of the first punching, and
The center of circle of two bottom surface of the central axes of second punching Jing Guo the first punching；Each side of second punching is joint face；
Basal diameter length of the bottom surface catercorner length of second punching less than the first punching；
Magnetic shoe, the inner surface of the magnetic shoe is a perpendicular, and the outer surface of magnetic shoe is an arc surface；The interior table of the magnetic shoe
Face is fixedly connected by glue with the joint face of the second punching；
There are upper cover plate in upper cover plate, second punching upper surface by rivet interlacement, for limiting magnetic shoe to perpendicular to upper cover plate
The direction of place plane is mobile；
Offer the cylindrical hole through second two bottom surfaces of punching in second punching, the central axes of the through-hole and the
The central axes of two punchings are on same straight line, and the bottom surface radius of through-hole is greater than the inner wall radius of the first punching.
2. a kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor according to claim 1,
It is characterized in that, bar shaped demarcation plate is provided on the incline of second punching, and demarcation plate is distributed along incline extending direction.
3. a kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor according to claim 2,
It is characterized in that, first punching, the second punching and demarcation plate are fabricated for integration.
4. a kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor according to claim 3,
It is characterized in that, the magnetic shoe further includes upper bottom surface, bottom surface and two sides, and the side of magnetic shoe is close to demarcation plate；Wherein
The bottom surface of the magnetic shoe is close to the first punching, and the upper bottom surface of the magnetic shoe is flushed with the upper bottom surface of the second punching.
5. according to claim 1 a kind of rotor core applied to refrigerator inverter compressor motor described in any one of -4 with
Magnetic shoe structure, which is characterized in that the incrementss of the magnetic shoe thickness are not higher than 1.55mm.
6. a kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor according to claim 5,
It is characterized in that, junction of each side of magnetic shoe respectively with magnetic shoe inner surface, outer surface, upper bottom surface, bottom surface is provided with
Chamfering, the magnetic shoe inner surface are provided with chamfering, the magnetic shoe outer surface point with the junction of magnetic shoe upper bottom surface, bottom surface respectively
Junction not with magnetic shoe upper bottom surface, bottom surface is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920082673.4U CN209659030U (en) | 2019-01-18 | 2019-01-18 | A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920082673.4U CN209659030U (en) | 2019-01-18 | 2019-01-18 | A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor |
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| Publication Number | Publication Date |
|---|---|
| CN209659030U true CN209659030U (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920082673.4U Active CN209659030U (en) | 2019-01-18 | 2019-01-18 | A kind of rotor core and magnetic shoe structure applied to refrigerator inverter compressor motor |
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| CN (1) | CN209659030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510871A (en) * | 2020-11-12 | 2021-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor core, rotor structure, motor, compressor and electric appliance with same |
-
2019
- 2019-01-18 CN CN201920082673.4U patent/CN209659030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510871A (en) * | 2020-11-12 | 2021-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor core, rotor structure, motor, compressor and electric appliance with same |
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