CN206908491U - Motor - Google Patents

Motor Download PDF

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Publication number
CN206908491U
CN206908491U CN201720506510.5U CN201720506510U CN206908491U CN 206908491 U CN206908491 U CN 206908491U CN 201720506510 U CN201720506510 U CN 201720506510U CN 206908491 U CN206908491 U CN 206908491U
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China
Prior art keywords
magnet steel
stator
rotor
rotor core
motor according
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Active
Application number
CN201720506510.5U
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Chinese (zh)
Inventor
李广海
张小波
刘健宁
张芳
贾金信
郭长光
魏琼
李忠雨
闫瑾
龚高
田思园
苏久展
张超
李欣
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Priority to CN201720506510.5U priority Critical patent/CN206908491U/en
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Abstract

The utility model provides a kind of motor, and motor includes:Stator structure, including stator core and stator cavity, stator slot are provided with stator core, stator slot is obliquely installed along the axis direction of stator core, and the winding of stator structure is arranged on stator core using star connection;Rotor structure, it is arranged in stator cavity, three magnet steel is provided with each magnetic pole of rotor structure.Using the technical solution of the utility model, to solve the problems, such as that the production of motor of the prior art assembling is complicated.

Description

Motor
Technical field
Technical field of motors is the utility model is related to, in particular to a kind of motor.
Background technology
In interior permanent magnet machines, motor gas-gap magnetic flux density waveformses can reduce the same of harmonic component close to Sine distribution When reduce magnet steel eddy-current loss and torque pulsation.In the prior art, in order that obtaining motor gas-gap magnetic flux density waveformses close to sinusoidal point Cloth, can by the way that whole section of magnet steel of each pole of rotor to be divided into the same polarity magnet steel of multiple different in width as much as possible, It is provided between each section of magnet steel every magnetic reinforcement, it is close with odd number section staircase waveform to approach sine wave magnetic from Analysis of Electromagnetic Properties, using each Section staircase waveform area equation method modulates each section of magnet steel width to realize motor gas-gap magnetic flux density waveformses close to the mesh of Sine distribution 's.In this way, when the segments of magnet steel is excessive, complex rotor structure is easily caused, band is assembled in the production to motor Carry out larger difficulty.
Utility model content
The utility model provides a kind of motor, to solve the problems, such as that the production of motor of the prior art assembling is complicated.
The utility model provides a kind of motor, and motor includes:Stator structure, including stator core and stator cavity, it is fixed Stator slot is provided with sub- iron core, stator slot is obliquely installed along the axis direction of stator core, and the winding of stator structure uses star Shape connection is arranged on stator core;Rotor structure, it is arranged in stator cavity, is provided with each magnetic pole of rotor structure Three magnet steel.
Further, rotor structure includes rotor core, the curved arrangement on rotor core of three magnet steel, and arc is opened Mouthful towards the center of rotor core.
Further, rotor core has multiple sector regions, multiple sector regions and multiple magnetic poles on radial section Corresponding and set, three magnet steel are respectively the first magnet steel, the second magnet steel and the 3rd magnet steel, wherein, the first magnet steel is in rotor iron Core radial section is centrally located on the center line of each extremely corresponding sector region, and the second magnet steel and the 3rd magnet steel are along center line pair Claim to set.
Further, in rotor core on radial section, the center of circle of rotor core is not located at the second magnet steel along length On the center line in direction and on the 3rd magnet steel center line along its length.
Further, length of second magnet steel with the 3rd magnet steel on radial section is identical, and respectively less than the first magnet steel exists Length on radial section.
Further, multiple magnet steel mounting holes for mounting magnetic steel, magnet steel mounting hole and magnetic are provided with rotor core Steel, which corresponds, to be set.
Further, rotor core also includes slot wedge, and slot wedge is arranged in magnet steel mounting hole to fix magnet steel.
Further, the close side of first magnet steel and/or the side of the first magnet steel of the second magnet steel and/or the 3rd magnet steel For arc structure.
Further, the second magnet steel and the 3rd magnet steel are set with the first magnet steel in angle.
Further, rotor core also includes:Magnetic bridge, it is arranged on the periphery of rotor core;Reinforcement, it is arranged on adjacent Between two magnet steel mounting holes.
Further, rotor structure includes multiple rotor punchings, and positioning hole is provided with multiple rotor punchings.
It is zigzag flat-topped wave in the air gap magnetic density waveform of motor, motor is opposite using the technical solution of the utility model When potential waveform is flat-topped wave, by the way that stator slot is obliquely installed along the axis direction of stator core, the winding of stator structure is adopted It is arranged on star connection on stator core, three magnet steel is respectively provided with each magnetic pole of rotor structure, can be by motor lines Back-emf modulated sinusoid.Such a mode of the present utility model can reduce the magnet steel number on each magnetic pole of rotor structure, from And magnetic leakage is reduced, be advantageous to the assembling and production of motor, improve the production efficiency of motor, on this basis, by by motor The back-emf of line is modulated to sine wave, so as to be advantageous to reduce harmonic component and reduce eddy-current loss and the torque pulsation of magnet steel.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 shows structural representation during the non-mounting magnetic steel of rotor structure provided according to the utility model embodiment;
Fig. 2 shows the structural representation during rotor structure mounting magnetic steel according to the utility model embodiment offer;
Fig. 3 shows the structural representation of the air gap magnetic density waveform provided according to the utility model embodiment;
Fig. 4 shows the structural representation of the motor opposite potential provided according to the utility model embodiment;
Fig. 5 shows the structural representation of the motor lines back-emf provided according to the utility model embodiment.
Wherein, above-mentioned accompanying drawing marks including the following drawings:
10th, rotor core;11st, magnet steel;111st, the first magnet steel;112nd, the second magnet steel;113rd, the 3rd magnet steel;12nd, magnet steel is pacified Fill hole;121st, the first magnet steel mounting hole;122nd, the second magnet steel mounting hole;123rd, the 3rd magnet steel mounting hole;13rd, slot wedge;14th, every magnetic Bridge;15th, reinforcement;16th, positioning hole.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below New and its application or any restrictions used.Based on the embodiment in the utility model, those of ordinary skill in the art are not having There is the every other embodiment made and obtained under the premise of creative work, belong to the scope of the utility model protection.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that each shown in accompanying drawing for the ease of description The size of individual part is not to be drawn according to the proportionate relationship of reality.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as awarding Weigh part for specification.In shown here and discussion all examples, any occurrence should be construed as merely example Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that:It is similar Label and letter similar terms is represented in following accompanying drawing, therefore, once be defined in a certain Xiang Yi accompanying drawing, then with It need not be further discussed in accompanying drawing afterwards.
In description of the present utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal, Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or position relationship be normally based on orientation or position shown in the drawings Relation is put, description the utility model is for only for ease of and simplifies description, in the case where not making opposite explanation, these nouns of locality Do not indicate that and imply that the device of meaning or element there must be specific orientation or with specific azimuth configuration and operation, because This is it is not intended that limitation to scope of protection of the utility model;The noun of locality " inside and outside " refers to the wheel relative to each part in itself Wide is inside and outside.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second " Corresponding parts to be distinguished, do not have Stated otherwise such as, above-mentioned word does not have particular meaning, therefore it is not intended that to this The limitation of utility model protection scope.
A kind of motor is provided according to specific embodiment of the utility model, the motor includes stator structure and rotor knot Structure, stator structure include stator core and stator cavity, stator slot, axle of the stator slot along stator core are provided with stator core Line direction is obliquely installed, and the winding of stator structure is arranged on stator core using star connection, and rotor structure is arranged on stator In cavity, three magnet steel are provided with each magnetic pole of rotor structure.
It is zigzag flat-topped wave A as shown in Figure 3 in the air gap magnetic density waveform of motor using such a configuration mode, motor When opposite potential waveform is flat-topped wave B as shown in Figure 4, by the way that stator slot is obliquely installed along the axis direction of stator core, The winding of stator structure is arranged on stator core using star connection, and three magnetic are respectively provided with each magnetic pole of rotor structure Steel, the back-emf of motor lines can be modulated to sine wave as shown in Figure 5.Such a mode of the present utility model, which can be reduced, to be turned Magnet steel number on each magnetic pole of minor structure, so as to reduce magnetic leakage, be advantageous to the assembling and production of motor, improve the life of motor Efficiency is produced, on this basis, by the way that the back-emf of motor lines is modulated into sine wave, so as to be advantageous to reduce harmonic component and drop The eddy-current loss of low magnetic steel and torque pulsation.
Further, in the utility model, rotor structure includes rotor core 10, and three magnet steel 11 are in rotor core 10 Upper curved arrangement, and arc opening is towards the center of rotor core 10.Specifically, it is specific real as one of the present utility model Example is applied, the structure of magnet steel 11 is in rectangular parallelepiped structure, and the magnetizing direction of magnet steel 11 is perpendicular to the surface of magnet steel 11.Fig. 1 and Fig. 2 are shown Rotor structure is the structural representation of quadrupole, as other embodiment of the present utility model, rotor structure of the present utility model It is applied equally to the motors such as six grades or eight grades.
In the utility model, in order that the distribution for obtaining the magnetic field in rotor structure is more uniform, can be by rotor core 10 It is configured to that there are multiple sector regions on radial section, multiple sector regions are corresponded with multiple magnetic poles and set, three magnetic Steel is respectively the first magnet steel 111, the second magnet steel 112 and the 3rd magnet steel 113, wherein, the first magnet steel 111 in rotor core 10 radially Section is centrally located on the center line of each extremely corresponding sector region, and the second magnet steel 112 and the 3rd magnet steel 113 are along center line pair Claim to set.
Using such a configuration mode, the second magnet steel 112 and the 3rd magnet steel 113 are favourable along center line symmetrical setting, the structure Magnet in each pair pole of rotor structure is corresponding, so that the Distribution of Magnetic Field in whole rotor structure is more uniform.
Further, in the utility model, in order to improve the mechanical strength of rotor structure, in rotor core 10 radially On section, the center of circle of rotor core 10 is not located at on the center line of second magnet steel 112 along its length and the 3rd magnetic On the center line of steel 113 along its length.
, can be by the second magnet steel 112 and in order to further ensure the structural strength of rotor structure in the utility model Length of three magnet steel 113 on radial section is arranged to identical, and length of respectively less than the first magnet steel 111 on radial section. Wherein, in the utility model, when the second magnet steel 112 or the lenth ratio of the 3rd magnet steel 113 and the first magnet steel 111 are 2:When 3, Rotor structure intensity under such a set-up mode reaches maximum.Further, in the utility model, the first magnet steel 111, second The thickness of axial direction of the magnet steel 113 of magnet steel 112 and the 3rd along rotor core 10 is equal.
Further,, can be by rotor in order to realize installation of multiple magnet steel 11 on rotor structure in the utility model It is arranged on iron core 10 with multiple magnet steel mounting holes 12 for mounting magnetic steel 11, a pair of magnet steel mounting hole 12 and magnet steel 11 1 It should set.Specifically, as depicted in figs. 1 and 2, multiple magnet steel mounting holes 12 are respectively the first magnet steel mounting hole 121, the second magnet steel The magnet steel mounting hole 123 of mounting hole 122 and the 3rd, when carrying out the installation operation of multiple magnet steel 11, the first magnet steel 111 sets installation In the first magnet steel mounting hole 121, the second magnet steel 112, which is set, to be arranged in the second magnet steel mounting hole 122, and the 3rd magnet steel 113 is set Put in the 3rd magnet steel mounting hole 123.
In the utility model, rotor core 10, can be configured to also include slot wedge by the fixation to magnet steel 11 for convenience 13, slot wedge 13 is arranged in magnet steel mounting hole 12 to fix magnet steel 11.Specifically, as one of the present utility model specific implementation Example, the quantity of the slot wedge 13 of each pole of rotor structure is two, and the second magnet steel 112 is being arranged on into the second magnet steel mounting hole 122 After interior, one of slot wedge 13 is squeezed into the remaining space of the second magnet steel mounting hole 122, to consolidate to the second magnet steel 112 It is fixed.After the 3rd magnet steel 113 is arranged in the 3rd magnet steel mounting hole 123, another slot wedge 13 is squeezed into the 3rd magnet steel peace In the remaining space for filling hole 123, so that the 3rd magnet steel 113 to be fixed.Further, in the utility model, by magnet steel After 11 complete with the assembling of magnet steel mounting hole 12, the gap of magnet steel glue filling magnet steel mounting groove can be used, magnet steel 11 is firm It is fixed in magnet steel mounting hole 12.
Specifically, as a specific embodiment of the present utility model, when carrying out the installation operation of magnet steel 11, due to each The size of individual magnet steel 11 is relatively small, when magnet steel 11 is attached into magnet steel mounting hole 12, according to magnet steel 11 in each of motor N, S extremely under prescribed direction, magnet steel 11 can be pushed into magnet steel mounting hole 12 using guided tooling made of non-magnet material. The installation process good manufacturability of magnet steel 11 is carried out using such a mode, production efficiency is high.
Further, in order to improve the structural strength of rotor structure, as shown in Fig. 2 can be by the second magnet steel 112 and/or Three magnet steel 113 are arranged to arc structure close to the side of the side of the first magnet steel 111 and/or the first magnet steel 111.
In the utility model, as depicted in figs. 1 and 2, the second magnet steel 112 and the 3rd magnet steel 113 with the first magnet steel 111 Set in angle.In the utility model, angle between the second magnet steel 112 or the 3rd magnet steel 113 and the first magnet steel 111 can be with 150 ° to 165 ° are arranged to, wherein, the angle angular dimension determines that the structure of motor lines back-emf and rotor structure can be passed through Intensity synthesis determines.Specifically, when the angle angular dimension between the second magnet steel 112 or the 3rd magnet steel 113 and the first magnet steel 111 During increase, the peak value of motor lines back-emf can increase, and the structural strength of rotor structure can reduce.Conversely, when the second magnet steel 112 Or the 3rd angle angular dimension between magnet steel 113 and the first magnet steel 111, when reducing, the peak value of motor lines back-emf can reduce, And the structural strength of rotor structure can increase.
Further, in the utility model, turn to further improve the structural strength of rotor structure and improve The magnetism isolating effect of minor structure, rotor core 10 can be configured to also include magnetic bridge 14 and reinforcement 15, wherein, magnetic bridge 14 is set The periphery in rotor core 10 is put, reinforcement 15 is arranged between two neighboring magnet steel mounting hole 12.By magnetic bridge 14 and add The effect of strengthening tendons 15, centrifugal force when can bear 11 high-speed motion of rotor core 10 and magnet steel while can play are imitated every magnetic Fruit.
, can be by rotor structure in order to ensure the accuracy of rotor structure position in lamination process in the utility model It is configured to include multiple rotor punchings, positioning hole 16 is provided with multiple rotor punchings.Pass through the effect of positioning hole 16, Neng Goubao Demonstrate,prove multiple rotor punchings and laminate position unification, so as to improve the precision of rotor structure and facilitate follow-up magnet steel 11 to be installed with magnet steel Assembling between hole 12.
In summary, motor of the present utility model in terms of existing technologies, has following advantage.
First, it is zigzag flat-topped wave A in the air gap magnetic density waveform of motor, when motor opposite potential waveform is flat-topped wave B, By the way that stator slot is obliquely installed along the axis direction of stator core, the winding of stator structure is arranged on stator using star connection On iron core, three magnet steel are respectively provided with each magnetic pole of rotor structure, the back-emf of motor lines can be modulated to sine wave.This Such a mode of utility model can reduce the magnet steel number on each magnetic pole of rotor structure, so as to reduce magnetic leakage, be advantageous to electricity The assembling and production of machine, the production efficiency of motor is improved, on this basis, by the way that the back-emf of motor lines is modulated into sine Ripple, so as to be advantageous to reduce harmonic component and lower eddy-current loss and the torque pulsation of magnet steel.
Second, by by the second magnet steel and/or the 3rd magnet steel close to the side of the first magnet steel and/or the side of the first magnet steel While arc structure is arranged to, so as to improve the structural strength of rotor structure.
3rd, in rotor core on radial section, by by the first magnet steel rotor core radial section centre bit In on the center line of each extremely corresponding sector region, in rotor core 10 on radial section, the center of circle of rotor core 10 is not On the center line of second magnet steel 112 along its length and on the 3rd magnet steel 113 center line along its length, from And the structural strength of rotor structure can be improved.
4th, by the way that magnet steel subsection setup can be reduced to stress at rotor structure magnetic bridge and adjacent magnetic bridge The deformation of middle position, maximum stress point are distributed on the very strong reinforcement of multiple bearing capacitys by magnetic bridge, so as to Improve the mechanical strength of rotor structure.Furthermore the width of each reinforcement is determined by the maximum speed of motor, so as to pole The earth improves the maximum speed of rotor safe operation.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (11)

1. a kind of motor, it is characterised in that the motor includes:
Stator structure, including stator core and stator cavity, are provided with stator slot on the stator core, and the stator slot is along fixed The axis direction of sub- iron core is obliquely installed, and the winding of the stator structure is arranged on the stator core using star connection;
Rotor structure, it is arranged in the stator cavity, three magnet steel is provided with each magnetic pole of the rotor structure.
2. motor according to claim 1, it is characterised in that the rotor structure includes rotor core (10), three institutes State magnet steel (11) curved arrangement on the rotor core (10), and arc opening is towards in the rotor core (10) The heart.
3. motor according to claim 2, it is characterised in that the rotor core (10) has multiple on radial section Sector region, multiple sector regions are corresponded with multiple magnetic poles and set, and three magnet steel are respectively the first magnetic Steel (111), the second magnet steel (112) and the 3rd magnet steel (113), wherein, first magnet steel (111) is in the rotor core (10) Radial section is centrally located on the center line of each extremely corresponding sector region, second magnet steel (112) and described the Three magnet steel (113) are along the center line symmetrical setting.
4. motor according to claim 3, it is characterised in that described in the rotor core (10) on radial section The center of circle of rotor core (10) is not located at on the center line of second magnet steel (112) along its length and the 3rd magnetic On the center line of steel (113) along its length.
5. motor according to claim 3, it is characterised in that second magnet steel (112) and the 3rd magnet steel (113) Length on radial section is identical, and length of respectively less than described first magnet steel (111) on radial section.
6. motor according to claim 4, it is characterised in that be provided with the rotor core (10) described for installing Multiple magnet steel mounting holes (12) of magnet steel (11), the magnet steel mounting hole (12) correspond with the magnet steel (11) and set.
7. motor according to claim 6, it is characterised in that the rotor core (10) also includes slot wedge (13), described Slot wedge (13) is arranged in the magnet steel mounting hole (12) with the fixation magnet steel (11).
8. motor according to claim 3, it is characterised in that second magnet steel (112) and/or the 3rd magnet steel (113) the side of close first magnet steel (111) and/or the side of first magnet steel (111) is arc structure.
9. motor according to claim 3, it is characterised in that second magnet steel (112) and the 3rd magnet steel (113) Set with first magnet steel (111) in angle.
10. motor according to claim 6, it is characterised in that the rotor core (10) also includes:
Magnetic bridge (14), it is arranged on the periphery of the rotor core (10);
Reinforcement (15), it is arranged between the two neighboring magnet steel mounting hole (12).
11. motor according to claim 1, it is characterised in that the rotor structure includes multiple rotor punchings, Duo Gesuo State and positioning hole (16) is provided with rotor punching.
CN201720506510.5U 2017-05-08 2017-05-08 Motor Active CN206908491U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720506510.5U CN206908491U (en) 2017-05-08 2017-05-08 Motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720506510.5U CN206908491U (en) 2017-05-08 2017-05-08 Motor

Publications (1)

Publication Number Publication Date
CN206908491U true CN206908491U (en) 2018-01-19

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Application Number Title Priority Date Filing Date
CN201720506510.5U Active CN206908491U (en) 2017-05-08 2017-05-08 Motor

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107017750A (en) * 2017-05-08 2017-08-04 珠海格力节能环保制冷技术研究中心有限公司 Motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107017750A (en) * 2017-05-08 2017-08-04 珠海格力节能环保制冷技术研究中心有限公司 Motor
CN107017750B (en) * 2017-05-08 2024-04-05 珠海格力节能环保制冷技术研究中心有限公司 Motor with a motor housing

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