CN105978198B - Motor rotor and motor, compressor with it - Google Patents
Motor rotor and motor, compressor with it Download PDFInfo
- Publication number
- CN105978198B CN105978198B CN201610514012.5A CN201610514012A CN105978198B CN 105978198 B CN105978198 B CN 105978198B CN 201610514012 A CN201610514012 A CN 201610514012A CN 105978198 B CN105978198 B CN 105978198B
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- Prior art keywords
- magnet
- insertion groove
- slot
- ontology
- magnetic force
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Classifications
-
- 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
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- 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
-
- 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
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
-
- 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
Abstract
The invention discloses a kind of motor rotor and the motor with it, compressor, wherein rotor includes: ontology, ontology have it is multiple along its axially through and along its circumferentially spaced arrangement magnet slot group, each magnet slot group respectively includes at least two magnet slots for being radially spaced arrangement along ontology, and each magnet slot respectively includes magnet insertion groove and magnet isolation tank；Multiple permanent magnets, multiple permanent magnets are plugged on respectively in multiple magnet slots, ontology radially, positioned at the permanent magnet of grafting in the magnet insertion groove of the inner circumferential of ontology coercivity be greater than positioned at ontology periphery magnet insertion groove in grafting permanent magnet coercivity.Motor rotor according to an embodiment of the present invention, the magnetic flux of permanent magnet in each magnet slot group is synthetically formed the total magnetic flux of motor rotor, to change total flux of interlinkage of armature winding in motor stator according to the operating condition of motor, the efficiency of a wide range of operating frequency of the motor from low-speed region to high-speed region is improved.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly, to a kind of motor rotor and with its motor,
Compressor.
Background technique
Under the operating condition of high torque (HT) of the hermetic type compressor motor in low rotation speed area in the related technology, because
Necessary torque is produced to increase the armature winding electric current of motor stator so that the efficiency of motor reduces.In addition,
When operating of the motor in high-speed region, frequency changer circuit element etc. occurs damaged in order to prevent, need to carry out weak magnetic control with
The rising for inhibiting the induced voltage generated by the armature winding configured in motor stator, equally can also be such that the efficiency of motor drops
It is low, seriously affect the performance of motor.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem at least to a certain extent.For this purpose, the present invention proposes a kind of electricity
The structure of motivation rotor, the motor rotor is simple, and processing, manufacture are easy, and motor can be improved and transport in full operation range
The efficiency turned is conducive to the performance for improving motor.
The present invention also proposes a kind of motor with above-mentioned motor rotor, compressor.
The motor rotor of embodiment according to a first aspect of the present invention, comprising: ontology, the ontology have multiple along its axis
To perforation and along the magnet slot group of its circumferentially spaced arrangement, each magnet slot group respectively includes at least two along described
The magnet slot for being radially spaced arrangement of body, each magnet slot respectively include magnet insertion groove and magnet isolation tank, the magnet
Insertion groove along perpendicular to the ontology d axis direction extend, the magnet isolation tank be located at the both ends of the magnet insertion groove and with institute
The conducting of magnet insertion groove is stated, the magnet isolation tank extends outwardly along the q axis direction of the ontology；Multiple permanent magnets, it is multiple it is described forever
Magnet is plugged on respectively in multiple magnet slots, the ontology radially, positioned at the magnetic of the inner circumferential of the ontology
The coercivity of the permanent magnet of grafting is greater than the magnet insertion groove interpolation positioned at the periphery of the ontology in iron insertion groove
The coercivity of the permanent magnet connect.
Motor rotor according to an embodiment of the present invention, by the way that multiple diameters having along ontology are arranged on the ontology of rotor
To the magnet slot group of multiple magnet slots arranged spaced apart, and suitable permanent magnet is configured in magnet slot, thus it is possible to vary permanent magnetism
The magnetic flux of iron so that the magnetic flux of the permanent magnet in each magnet slot group is synthetically formed the total magnetic flux of motor rotor, from
And can according to the operating condition of motor change motor stator in armature winding total flux of interlinkage, improve motor from
Low-speed region to high-speed region a wide range of operating frequency efficiency, and then improve motor performance, the motor rotor
Structure is simple, and the connection of each component is reliable, is convenient to mount and dismount, process, manufacture it is easy.
In addition, motor rotor according to an embodiment of the present invention, can also have the following additional technical features:
According to one embodiment of present invention, each magnet slot group respectively includes being radially spaced along the ontology
The the first magnet slot and the second magnet slot of arrangement, the first magnet slot position is in the outside of the second magnet slot, and described first
Magnet slot include the first magnet insertion groove and the first magnet isolation tank, the second magnet slot include the second magnet insertion groove and second every
Magnetic slot.
According to one embodiment of present invention, the permanent magnet includes variable magnetic force magnet and fixes magnetic force magnet, described
Variable magnetic force magnet is located in the first magnet insertion groove, and the fixed magnetic force magnet is located at the second magnet insertion groove
It is interior.
According to one embodiment of present invention, each variable magnetic force magnet extends along the direction perpendicular to the d axis
Width be W1, each fixed magnetic force magnet is W2, the W1 and institute along the width that the direction perpendicular to the d axis extends
State W2 satisfaction: 0.5W2≤W1≤1.5W2.
According to one embodiment of present invention, the fixed magnetic force magnet by heavy rare earth element dysprosium content be 0WT% extremely
Province's dysprosium rare earth of 4WT% is sintered to be formed.
According to one embodiment of present invention, the magnetic bridge width between first magnet isolation tank and the outer profile of the ontology
For T1, the magnetic bridge width between second magnet isolation tank and the outer profile of the ontology is T2, the T1 and T2 satisfaction: T1≤
T2。
According to one embodiment of present invention, the ontology is superimposed by multiple electromagnetic steel plates and is formed, and the T2 is greater than each
The thickness of the electromagnetic steel plate.
According to one embodiment of present invention, each first magnet slot further includes two additional magnet isolation tanks, two institutes
Additional magnet isolation tank is stated to be respectively adjacent to the both ends setting of the first magnet insertion groove and be located at the outer of the first magnet insertion groove
Side, two additional magnet isolation tanks along the circumferentially extending of the ontology and are located between two first magnet isolation tanks respectively.
According to one embodiment of present invention, each additional magnet isolation tank respectively with neighbouring the first magnet isolation tank phase
Even or disconnect.
According to one embodiment of present invention, additional magnet insertion groove, institute are respectively equipped in each first magnet isolation tank
It states and is equipped with permanent magnet in additional magnet insertion groove.
According to one embodiment of present invention, the variable magnetic force magnet or described is equipped in the additional magnet insertion groove
Fixed magnetic force magnet.
According to one embodiment of present invention, the variable magnetic force magnet in each first magnet insertion groove is along vertical
Directly in the width that the direction of the d axis extends be W3, the fixed magnetic force magnet edge in each second magnet insertion groove
It is W4, the W3 and the W4 satisfaction: 0.25W4≤W3≤W4 perpendicular to the width that the direction of the d axis extends.
According to one embodiment of present invention, each magnet slot group respectively includes being radially spaced along the ontology
The first magnet slot, the second magnet slot and the third magnet slot of arrangement, the first magnet slot position is in the outer of the second magnet slot
Side, the second magnet slot position in the outside of the third magnet slot, the first magnet slot include the first magnet insertion groove and
First magnet isolation tank, the second magnet slot include the second magnet insertion groove and the second magnet isolation tank, and the third magnet slot includes the
Three magnet insertion grooves and third magnet isolation tank.
According to one embodiment of present invention, the permanent magnet includes variable magnetic force magnet and fixes magnetic force magnet, described
The variable magnetic force magnet is equipped in first magnet insertion groove, in the second magnet insertion groove and the third magnet insertion groove
It is respectively equipped with the fixed magnetic force magnet.
According to one embodiment of present invention, described in the second magnet insertion groove and the third magnet insertion groove
The coercivity of fixed magnetic force magnet is equal.
According to one embodiment of present invention, it is equipped with the first additional magnet insertion groove in first magnet isolation tank, described the
The second additional magnet insertion groove is equipped in two magnet isolation tanks, in the first additional magnet insertion groove and the second additional magnet insertion groove
It is respectively equipped with permanent magnet.
According to one embodiment of present invention, the permanent magnet includes variable magnetic force magnet and fixes magnetic force magnet, described
The variable magnetic force magnet, the second magnet insertion are equipped in first magnet insertion groove and the first additional magnet insertion groove
The fixed magnetic force magnet is respectively equipped in slot and the second additional magnet insertion groove.
According to one embodiment of present invention, the permanent magnet includes variable magnetic force magnet and fixes magnetic force magnet, described
Different permanent magnets are respectively equipped in first magnet insertion groove and the first additional magnet insertion groove.
The motor of embodiment according to a second aspect of the present invention, including the motor rotor according to above-described embodiment.
The compressor of embodiment according to a third aspect of the present invention, including the motor according to above-described embodiment.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of motor rotor according to an embodiment of the invention；
Fig. 2 is the structural schematic diagram of the motor rotor of another embodiment according to the present invention；
Fig. 3 is the structural schematic diagram of motor rotor in accordance with another embodiment of the present invention；
Fig. 4 is the structural schematic diagram of motor rotor according to an embodiment of the invention；
Fig. 5 is the structural schematic diagram of the motor rotor of another embodiment according to the present invention；
Fig. 6 is the structural schematic diagram of motor rotor in accordance with another embodiment of the present invention；
Fig. 7 is the structural schematic diagram of compressor according to an embodiment of the present invention.
Appended drawing reference:
100: compressor；
10: motor；
20 (20a, 20b, 20c): rotor；
21: ontology；
211 (211a, 211b, 211c): first magnet slot；
2111 (2111a, 2111b, 2111c): first magnet insertion groove；
2112 (2112a, 2112b, 2112c): the first magnet isolation tank；
2113b: additional magnet isolation tank；
212 (212a, 212b, 213c): second magnet slot；
2121 (2121a, 2121b, 2121c): second magnet insertion groove；
2122 (2122a, 2122b, 2122c): the second magnet isolation tank；
213c: third magnet slot；
2131c: third magnet insertion groove；
2132c: third magnet isolation tank；
22: permanent magnet；221: variable magnetic force magnet；222: fixed magnetic force magnet；
30: casing；31: accommodating chamber；
40: cylinder.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Motor rotor in the related technology is obtained by the total magnetic flux of variable magnetic force magnet and fixed magnetic force magnet
Torque ratio is high, therefore, needs high total magnetic flux to obtain high torque (HT), then needs to increase variable magnetic force magnet and fixed magnetic force magnetic
The volume of iron thickeies the two in the thickness of the direction of magnetization.Motor is under operating condition, using armature winding electric current to can in this way
When variable magnetic force magnet carries out magnetization, then big magnetizing current is needed, will lead to asking for the capacity increasing of frequency changer circuit element
Topic.
For this purpose, the present invention proposes a kind of motor rotor 20, the structure of the motor rotor 20 is simple, and processing, manufacture are held
Easily, the efficiency that motor 10 operates in full operation range can be improved, to improve the performance of motor 10.
1 to Fig. 6 motor rotor 20 for specifically describing embodiment according to a first aspect of the present invention with reference to the accompanying drawing.
Motor rotor 20 according to an embodiment of the present invention includes ontology 21 and multiple permanent magnets 22.Specifically, ontology
21 with it is multiple along its axially through and along its circumferentially spaced arrangement magnet slot group, each magnet slot group respectively includes at least
Two magnet slots for being radially spaced arrangement along ontology 21, each magnet slot respectively include magnet insertion groove and magnet isolation tank, magnetic
Iron insertion groove extends along the d axis direction perpendicular to ontology 21, magnet isolation tank be located at the both ends of magnet insertion groove and with magnet insertion groove
Conducting, magnet isolation tank extend outwardly along the q axis direction of ontology, and multiple permanent magnets 22 are plugged on respectively in multiple magnet slots, in ontology
21 radially, and the coercivity of the permanent magnet 22 of grafting, which is greater than, in the magnet insertion groove of the inner circumferential of ontology 21 is located at ontology 21
Periphery magnet insertion groove in grafting permanent magnet 22 coercivity.
In other words, which is mainly made of ontology 21 and multiple permanent magnets 22.Wherein, ontology 21 forms edge
The ontology 21 of the column that vertical direction extends, rotor has multiple magnet slot groups along its circumferentially spaced arrangement, each magnet
Slot group includes the magnet slot that is radially spaced arrangement of at least two (such as 2,3 or 3 or more) along ontology 21, each
Magnet slot along ontology 21 axially through.
Specifically, each magnet slot includes the magnet isolation tank of a magnet insertion groove with the both ends for being located at magnet insertion groove, magnetic
Iron insertion groove is connected to two magnet isolation tanks respectively.Wherein, magnet insertion groove forms strip, and the symmetry axis of magnet insertion groove is linear
At d axis, and d axis passes through the center of ontology 21, the i.e. axis of symmetry of magnet insertion groove radially extending along ontology 21, two neighboring
The axis of symmetry of magnet slot group forms q axis, i.e., the axis of symmetry of two neighbouring magnet isolation tanks in two neighboring magnet slot group is q
One end of axis, two magnet isolation tanks in each magnet slot is connected to the both ends of magnet insertion groove respectively, two magnet isolation tanks it is another
Extending radially outwardly along ontology 21 respectively is held, so that magnetic flux be facilitated to flow through along the q axis of motor rotor 20.
Further, permanent magnet 22 is respectively equipped in multiple magnet slots of each magnet slot group, wherein in each magnet slot
The coercivity of permanent magnet 22 in group, positioned inside is greater than the coercivity of the permanent magnet 22 positioned at outside.
Motor rotor 20 according to an embodiment of the present invention as a result, multiple has by being arranged on the ontology 21 of rotor
Along the magnet slot group of the multiple magnet slots for being radially spaced arrangement of ontology 21, and suitable permanent magnet is configured in magnet slot
22, thus it is possible to vary the magnetic flux of permanent magnet 22 so that the magnetic flux of the permanent magnet 22 in each magnet slot group be synthetically formed it is electronic
The total magnetic flux of machine rotor 20 can change according to the operating condition of motor 10 (not to be shown with armature winding in motor stator
Total flux of interlinkage out), so that the efficiency of a wide range of operating frequency of the motor 10 from low-speed region to high-speed region is improved,
And then the performance of motor 10 is improved, and the structure of the motor rotor 20 is simple, and each component connection is reliable, it is convenient to mount and dismount, processing,
Manufacture is easy.
In certain specific embodiments of the invention, each magnet slot group respectively includes being radially spaced along ontology 21
The the first magnet slot 211 and the second magnet slot 212 of arrangement, the first magnet slot 211 are located at the outside of the second magnet slot 212, and first
Magnet slot 211 includes the first magnet insertion groove 2111 and the first magnet isolation tank 2112, and the second magnet slot 212 is inserted into including the second magnet
Slot 2121 and the second magnet isolation tank 2122.
Specifically, as shown in Figure 1, in the present embodiment, the ontology 21 of motor rotor 20 has multiple between its circumferential direction
Magnet slot group arranged apart, each magnet slot group include two magnet slots for being radially spaced arrangement along ontology 21, i.e., and
One magnet slot 211 and the second magnet slot 212, wherein the outer edge of 211 adjacent body 21 of the first magnet slot is arranged, the second magnet
The center of 212 adjacent body 21 of slot is arranged, and the first magnet slot 211 includes that a first magnet insertion groove 2111 and two set respectively
The first magnet isolation tank 2112 at the both ends of the first magnet insertion groove 2111, the second magnet slot 212 include the second magnet insertion
Slot 2121 and two are respectively provided at second magnet isolation tank 2122 at the both ends of the second magnet insertion groove 2121, the first magnet insertion groove
2111 axis of symmetry (d axis as shown in Figure 1) is overlapped with the axis of symmetry of the second magnet insertion groove 2121.
By the way that multiple two magnet slots for being radially spaced arrangement having along ontology 21 are arranged on the ontology 21 of rotor
Magnet slot group, and different coercitive permanent magnets 22 are configured in magnet slot, can by changing the magnetic flux of permanent magnet 22,
So that the total magnetic flux of the magnetic flux synthesis of the permanent magnet 22 in each magnet slot group, formation motor rotor 20, so as to
Change total flux of interlinkage of armature winding in motor stator according to the operating condition of motor 10, improves motor 10 from low
Fast region to high-speed region a wide range of operating frequency efficiency, and then improve motor 10 performance.
Wherein, permanent magnet 22 includes variable magnetic force magnet 221 and fixed magnetic force magnet 222, and variable magnetic force magnet 221 is located at
In first magnet insertion groove 2111, fixed magnetic force magnet 222 is located in the second magnet insertion groove 2121.Referring to Fig.1, the motor
The ontology 21 of rotor 20 has multiple magnet slot groups along its circumferentially spaced arrangement, and each magnet slot group includes two along ontology
The 21 magnet slot for being radially spaced arrangement, i.e. the first magnet slot 211 and the second magnet slot 212, wherein the first magnet slot 211
The outer edge of adjacent body 21 is arranged, the center setting of 212 adjacent body 21 of the second magnet slot, each first magnet slot 211
Variable magnetic force magnet 221, and the axis of symmetry of variable magnetic force magnet 221 and the first magnet are equipped in first magnet insertion groove 2111
The axis of symmetry of insertion groove 2111 is overlapped, and fixed magnetic force magnet 222 is equipped in each second magnet slot, 212 insertion groove, and fixed
The axis of symmetry of magnetic force magnet 222 is overlapped with the axis of symmetry of the second magnet slot 212.
The motor rotor 20 can promote the ratio of magnet torque and reluctance torque by two layers of magnet slot structure,
On the basis of not generating irreversible demagnetization, by the first magnet insertion groove 2111 variable magnetic force magnet 221 and the second magnet insert
The fixation magnetic force magnet 222 entered in slot 2121 is thinned in the thickness of the direction of magnetization, can both reduce the volume of magnet, reduce magnet
Cost, and the performance of motor 10 can be promoted.
Optionally, each variable magnetic force magnet 221 is W1, each fixed magnetic along the width of the direction extension perpendicular to d axis
Power magnet 222 is W2, W1 and W2 satisfaction: 0.5W2≤W1≤1.5W2 along the width of the direction extension perpendicular to d axis.
For example, W1/W2=0.5,1,1.2 or 1.5 are located in the first magnet insertion groove 2111 when W1/W2 is equal to 1
Variable magnetic force magnet 221 length and the equal length of fixation magnetic force magnet 222 that is located in the second magnet insertion groove 2121.
The width of variable magnetic force magnet 221 and fixed magnetic force magnet 222 meets above-mentioned relation formula, can make variable magnetic force magnet 221
The magnetic flux of magnetic flux and fixed magnetic force magnet 222 is merged into the total magnetic flux of motor rotor 20, more effectively exists with configuration
Armature winding interlinks in motor stator, to obtain total flux of interlinkage bring magnet torque, is conducive to improve electricity
The efficiency of motivation 10, to improve the performance of motor 10.
Specifically, if the armature winding configured in motor stator is respectively 25U, 25V, 25W, hermetic type compressor 100
When operating under high temperature and high pressure environment, armature winding 25U, 25V, the 25W configured into motor stator is powered, and armature winding exists
Short time load makes variable magnetic force magnet 221 generate the magnetizing current of magnetizing field, passes through change variable magnetic force magnet 221
Magnetic flux can continuously change and is merged by the magnetic flux of variable magnetic force magnet 221 and the magnetic flux of fixed magnetic force magnet 222
The total magnetic flux of motor rotor 20, to according to the operating condition of hermetic type compressor 100, obtain hermetic type compressor in real time
100 torques required for motor 10, and then improve the efficiency in the wideband operation range from low-speed region to high-speed region.
If hermetic type compressor 100 low-speed region, High Pressure Difference service condition under operate, to hermetic type compressor 100
It is powered with the armature winding configured in the motor stator of motor 10, can load in a short time, generate variable magnetic force magnetic
The magnetizing current in the increasing magnetic magnetic field of iron 221, the magnetic flux of the increased magnetic flux of variable magnetic force magnet 221 and fixed magnetic force magnet 222
The total magnetic flux for measuring the motor rotor 20 being merged into can be such that total flux of interlinkage of armature winding 25U, 25V, 25W increases, from
And make hermetic type compressor 100 with motor 10 under the conditions of High Pressure Difference, generation high torque (HT), realize high-efficiency operation.
When hermetic type compressor 100 operates under the service condition of low voltage difference, to the motor 10 of hermetic type compressor 100
Motor stator in configure armature winding be powered, can load, generate the demagnetization of variable magnetic force magnet 221 in a short time
The magnetizing current (the reversed electric current with above-mentioned increasing magnetic magnetizing current) in magnetic field, the magnetic flux of 221 reduction of variable magnetic force magnet and solid
The total magnetic flux for determining the motor rotor 20 of the magnetic flux synthesis of magnetic force magnet 222 can make total flux of interlinkage with armature winding
It reduces, so that hermetic type compressor 100 uses motor 10 under the conditions of low voltage difference, generates necessary torque, realizes efficient
Operating.
If hermetic type compressor 100 is to obtain heating capacity in high-speed region operating, used to hermetic type compressor 100
The armature winding configured in the motor stator of motor 10 is powered, and can load in a short time, generate variable magnetic force magnet
221 with the magnetizing current (the reversed electric current with above-mentioned increasing magnetic magnetizing current) of fixed 222 backing field of magnetic force magnet, variable magnetic force
Total magnetic flux of the difference of the magnetic flux of the magnetic flux of magnet 221 and fixed magnetic force magnet 222 as motor rotor 20, can be into one
Step reduces and total flux of interlinkage of the interior armature winding configured of motor stator, the induced voltage generated to armature winding play
Inhibiting effect on the basis of without the control of original weak magnetic, can avoid to avoid breakages such as transducer elements due to weak magnetic
The problem of control causes copper loss to increase.
Wherein, according to one embodiment of present invention, fixed magnetic force magnet 222 is 0WT% by heavy rare earth element dysprosium content
Province's dysprosium rare earth to 4WT% is sintered and to be formed.Magnetic force magnet 222 is fixed made of the material can obtain high residual flux density, not
Generate irreversible demagnetization in the range of, if reach with rare-earth sintered magnet (Nd2Fe14B) same magnetic flux obtained,
The ratio of reluctance torque can be not only promoted, but also cost can be reduced by the way that magnet is thinned in the thickness of the direction of magnetization.
Optionally, according to one embodiment of present invention, the magnetic between the first magnet isolation tank 2112 and the outer profile of ontology 21
Bridge width is T1, and the magnetic bridge width between the second magnet isolation tank 2122 and the outer profile of ontology 21 is T2, T1 and T2 satisfaction: T1≤
T2.Specifically, as shown in Figure 1, in the present embodiment, the magnetic bridge width between the first magnet isolation tank 2112 and the outer profile of ontology 21
Magnetic bridge width T2 between T1 and the second magnet isolation tank 2122 and the outer profile of ontology 21 is equal.As shown in Figure 4 and Figure 5, in this reality
It applies in example, the magnetic bridge width T1 between the first magnet isolation tank 2112 and the outer profile of ontology 21 is greater than the second magnet isolation tank 2122 and ontology
Magnetic bridge width T2 between 21 outer profile.Advantageously, ontology 21 is superimposed by multiple electromagnetic steel plates and is formed, and T2 is greater than each electromagnetism
The thickness of steel plate.
As a result, by the magnetic bridge width T1 and second between the first magnet isolation tank 2112 of control and the outer profile of ontology 21 every magnetic
Magnetic bridge width T2 between slot 2122 and the outer profile of ontology 21 meets above-mentioned relation formula, and makes the second magnet isolation tank 2122 and this
Magnetic bridge width T2 between the outer profile of body 21 is greater than the plate thickness of the electromagnetic steel plate of rotor, can make in high-speed region, in electricity
Closed circuit magnetic circuit is formed in motivation rotor 20, the magnetic flux of the magnetic flux and fixed magnetic force magnet 222 that make variable magnetic force magnet 221 closes
The total magnetic flux of motor rotor 20 made of and to and motor stator in total flux of interlinkage of armature winding for configuring rise
To inhibitory effect, frequency changer circuit element etc. is avoided to occur damaged.
Specifically, the magnetic bridge width T2 between the second magnet isolation tank 2122 and the outer profile of ontology 21 is greater than the electromagnetic steel of rotor
When the plate thickness of plate, the leakage field generated between the q axis of motor rotor 20 and adjacent pole can be inhibited, turned to reduce by motor
Total flux of interlinkage of son 20 and the armature winding configured in motor stator is conducive to the efficiency for improving motor 10.
If hermetic type compressor 100 is to obtain maximum heating capacity, in highest zone operating, to hermetic type compressor
100 are powered with the armature winding configured in the motor stator of motor 10, can be loaded in a short time, be generated variable magnetic force
The magnetizing current (the reverse electric current with magnetizing current) of magnet 221 and fixed 222 backing field of magnetic force magnet, in variable magnetic force magnetic
The total magnetic flux for the motor rotor 20 that the difference of the magnetic flux of the magnetic flux of iron 221 and fixed magnetic force magnet 222 is formed with it is electronic
When total flux of interlinkage of the armature winding of machine stator becomes minimum, it can reduce inside is formed by by motor rotor 20 closes
Total flux of interlinkage between magnetic circuit and the armature winding of motor stator avoids frequency conversion loop element etc. from occurring damaged.
In addition, hermetic type compressor 100 is variable magnetic force when obtaining maximum heating capacity, operating in most high speed region
The difference of the magnetic flux of the magnetic flux of magnet 221 and fixed magnetic force magnet 222 is minimum, by by the first magnet slot 211 of rotor
In the range of the magnetic bridge width T1 of first magnet isolation tank 2112 is set on total flux of interlinkage of motor 10 without influence, make closed
Type compressor 100 is to obtain maximum heating capacity, under the service condition other than the operating of most high speed region, motor rotor 20
Total magnetic flux can be effectively performed with the armature winding of motor stator and interlink, to obtain total flux of interlinkage bring magnetic
Iron torque.
What needs to be explained here is that the electrical current of the armature winding configured in motor stator, only adds in a short time
It carries, and when variable magnetic force magnet 221 generates increase and decrease magnetic action to the magnetizing current in magnetic field can generate copper loss, after magnetizing current load
Do not occur, weak magnetic control can be realized in the running speed of high-speed region according to motor 10.
In other specific embodiments of the invention, each first magnet slot 211 further includes two additional magnet isolation tanks
2113b, two additional magnet isolation tank 2113b are respectively adjacent to the both ends setting of the first magnet insertion groove 2111 and are located at the first magnet and insert
Enter the outside of slot 2111, two additional magnet isolation tank 2113b along the circumferentially extending of ontology 21 and are located at two the first magnet isolation tanks respectively
Between 2112.
Specifically, the ontology 21 of motor rotor 20 has multiple magnet slot groups along its circumferentially spaced arrangement, each
Magnet slot group includes two magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet slot 211 and the second magnet slot
212, wherein the outer edge of 211 adjacent body 21 of the first magnet slot is arranged, and the center of 212 adjacent body 21 of the second magnet slot is set
Set, the first magnet slot 211 include a first magnet insertion groove 2111, be located at the first magnet insertion groove 2111 both ends first
Magnet isolation tank 2112 and two additional magnet isolation tank 2113b for being located at 2112 both ends of the first magnet isolation tank, the second magnet slot 212 include one
Second magnet isolation tank 2122 of the second magnet insertion groove 2121 and the both ends for being located at the second magnet insertion groove 2121.
Wherein, in each magnet slot group, the inner end of two the first magnet isolation tanks 2112 respectively with the first magnet insertion groove
2111 both ends connection, two additional magnet isolation tank 2113b are respectively provided at the two sides of the first magnet insertion groove 2111 and two additional
One end of magnet isolation tank 2113b is arranged adjacent to the outer end of two the first magnet insertion grooves 2111, and two additional magnet isolation tank 2113b
The other end extends along the circumferential d axis to close to each magnet slot group of ontology 21 respectively.
It can make the variable magnetic force configured in the first magnet insertion groove 2111 orthogonal with the d axis of motor rotor 20 in this way
The fixation magnetic force configured in the magnetic flux of magnet 221 and the second magnet insertion groove 2121 orthogonal with the d axis of motor rotor 20
The magnetic flux of magnet 222 concentrates near the d axis of motor rotor 20, is conducive to the efficiency for improving motor 10.
Optionally, each additional magnet isolation tank 2113b is connected or disconnects with the first neighbouring magnet isolation tank 2112 respectively.
As shown in Fig. 2, in the present embodiment, in each magnet slot group, the inner end difference of two the first magnet isolation tanks 2112
It is connected to the both ends of the first magnet insertion groove 2111, two additional magnet isolation tank 2113b are respectively provided at the first magnet insertion groove 2111
Two sides and one end of two additional magnet isolation tank 2113b be connected to respectively with the outer end of two the first magnet insertion grooves 2111, and two
The other end of a additional magnet isolation tank 2113b extends along the circumferential d axis to close to each magnet slot group of ontology 21 respectively.In this way may be used
To reduce cogging torque and torque pulsation, make the induction voltage waveform incuded on the armature winding configured in motor stator just
String.
As shown in figure 3, in the present embodiment, in each magnet slot group, the inner end difference of two the first magnet isolation tanks 2112
It is connected to the both ends of the first magnet insertion groove 2111, two additional magnet isolation tank 2113b are respectively provided at the first magnet insertion groove 2111
Two sides and one end of two additional magnet isolation tank 2113b and the outer end of two the first magnet insertion grooves 2111 it is arranged spaced apart, and
The other end of two additional magnet isolation tank 2113b extends along the circumferential d axis to close to each magnet slot group of ontology 21 respectively, i.e., and two
A additional magnet isolation tank 2113b is located between two the first magnet isolation tanks 2112.
The motor stator armature winding of the motor 10 of hermetic type compressor 100 loads magnetizing current in a short time to be made
The magnetic field of variable magnetic force magnet 221 in the first magnet insertion groove 2111 orthogonal with the d axis of motor rotor 20 generates magnetization,
Variable magnetic force magnet 221 is set always to interlink according to the service condition of hermetic type compressor 100, with the armature winding of motor stator
Magnetic flux generation can continuously increase, subtract magnetic action, can equally reduce cogging torque and torque pulsation, make to match in motor stator
The induction voltage waveform sine incuded on the armature winding set.
In addition, according to one embodiment of present invention, additional magnet insertion is respectively equipped in each first magnet isolation tank 2112
Slot (position where permanent magnet 22 as shown in Figure 4), additional magnet insertion groove is interior to be equipped with permanent magnet 22.I.e. each first magnet isolation tank
A permanent magnet 22 is equipped in 2112, and the length of the permanent magnet 22 in the position is less than the length of the first magnet isolation tank 2112.
Optionally, variable magnetic force magnet 221 or fixed magnetic force magnet 222 are equipped in additional magnet insertion groove.Specifically, such as
Shown in Fig. 4, in the present embodiment, the first magnet slot 211 includes that a first magnet insertion groove 2111 is inserted with the first magnet is located at
Enter first magnet isolation tank 2112 at the both ends of slot 2111, two the first magnet isolation tanks 2112 respectively with the first magnet insertion groove 2111 two
End connection, the other end of two the first magnet isolation tanks 2112 extending radially outwardly along ontology 21 respectively, wherein each first every magnetic
Variable magnetic force magnet 221 is equipped in slot 2112.
As shown in figure 5, in the present embodiment, the first magnet slot 211 includes a first magnet insertion groove 2111 and is located at
First magnet isolation tank 2112 at the both ends of the first magnet insertion groove 2111, two the first magnet isolation tanks 2112 are inserted into the first magnet respectively
The both ends of slot 2111 are connected to, the other end of two the first magnet isolation tanks 2112 extending radially outwardly along ontology 21 respectively, wherein every
Fixed magnetic force magnet 222 is equipped in a first magnet isolation tank 2112.
Wherein, the variable magnetic force magnet 221 in each first magnet insertion groove 2111 is along the direction extension perpendicular to d axis
Width is W3, width of the fixation magnetic force magnet 222 in each second magnet insertion groove 2121 along the direction extension perpendicular to d axis
Meet for W4, W3 and W4: 0.25W4≤W3≤W4.For example, W3/W4=0.25,0.5,0.8 or 1, when W1/W2 is equal to 1,
The length for the variable magnetic force magnet 221 being located in the first magnet insertion groove 2111 be located at consolidating in the second magnet insertion groove 2121
Determine the equal length of magnetic force magnet 222.
The width of variable magnetic force magnet 221 and fixed magnetic force magnet 222 meets above-mentioned relation formula, can make variable magnetic force magnetic
The magnetic flux of the magnetic flux of iron 221 and fixed magnetic force magnet 222 is merged into the total magnetic flux of motor rotor 20, more effectively with
Configuration armature winding in motor stator interlinks, to obtain total flux of interlinkage bring magnet torque.
In certain specific embodiments of the invention, each magnet slot group respectively includes being radially spaced along ontology 21
The first magnet slot 211, the second magnet slot 212 and the third magnet slot 213c of arrangement, the first magnet slot 211 are located at the second magnet slot
212 outside, the second magnet slot 212 are located at the outside of third magnet slot 213c, and the first magnet slot 211 is inserted into including the first magnet
Slot 2111 and the first magnet isolation tank 2112, the second magnet slot 212 include the second magnet insertion groove 2121 and the second magnet isolation tank 2122, the
Three magnet slot 213c include third magnet insertion groove 2131c and third magnet isolation tank 2132c.
Specifically, as shown in fig. 6, the ontology 21 of motor rotor 20 has multiple magnet along its circumferentially spaced arrangement
Slot group, each magnet slot group include three magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet slot 211,
Two magnet slots 212 and third magnet slot 213c, wherein the outer edge of 211 adjacent body 21 of the first magnet slot is arranged, third magnet
The center of slot 213c adjacent body 21 is arranged, the second magnet slot 212 be located at the first magnet slot 211 and third magnet slot 213c it
Between.
First magnet slot 211 includes a first magnet insertion groove 2111 and the both ends for being located at the first magnet insertion groove 2111
The first magnet isolation tank 2112, the second magnet slot 212 includes a second magnet insertion groove 2121 and is located at the second magnet insertion groove
Second magnet isolation tank 2122 at 2121 both ends, third magnet slot 213c include third magnet insertion groove 2131c and are located at the
The third magnet isolation tank 2132c at the both ends of three magnet insertion groove 2131c, the axis of symmetry, the second magnetic of the first magnet insertion groove 2111
The axis of symmetry of iron insertion groove 2121 and third magnet insertion groove 2131c are overlapped.
By the way that multiple three magnet slots for being radially spaced arrangement having along ontology 21 are arranged on the ontology 21 of rotor
Magnet slot group, and different coercitive permanent magnets 22 are configured in magnet slot, can by changing the magnetic flux of permanent magnet 22,
So that the total magnetic flux of the magnetic flux synthesis of the permanent magnet 22 in each magnet slot group, formation motor rotor 20, so as to
Change total flux of interlinkage of armature winding in motor stator according to the operating condition of motor 10, improves motor 10 from low
Fast region to high-speed region a wide range of operating frequency efficiency, and then improve motor 10 performance.
The motor rotor 20 can promote the ratio of magnet torque and reluctance torque by three layers of magnet slot structure,
On the basis of not generating irreversible demagnetization, by the first magnet insertion groove 2111 variable magnetic force magnet 221 and the second magnet insert
Enter slot 2121, the fixation magnetic force magnet 222 in third magnet insertion groove 2131c is thinned in the thickness of the direction of magnetization, can both subtract
The volume of few magnet, reduces the cost of magnet, and the efficiency of motor 10 can be improved, and promotes the performance of motor 10.
Wherein, according to one embodiment of present invention, permanent magnet 22 includes variable magnetic force magnet 221 and fixed magnetic force magnet
222, the first magnet insertion groove 2111 is interior equipped with variable magnetic force magnet 221, the second magnet insertion groove 2121 and the insertion of third magnet
Fixed magnetic force magnet 222 is respectively equipped in slot 2131c.Optionally, the second magnet insertion groove 2121 and third magnet insertion groove
The coercivity of fixation magnetic force magnet 222 in 2131c is equal, and the continuous change of the total magnetic flux of permanent magnet 22 may be implemented, from
And total flux of interlinkage of armature winding in motor stator can be changed according to the operating condition of motor 10, improve motor
The efficiency of the 10 a wide range of operating frequency from low-speed region to high-speed region, and then improve the performance of motor 10.
Advantageously, according to one embodiment of present invention, it is equipped with the first additional magnet insertion groove in the first magnet isolation tank 2112,
The second additional magnet insertion groove, the first additional magnet insertion groove and the second additional magnet insertion groove are equipped in second magnet isolation tank 2122
Inside it is respectively equipped with permanent magnet 22.Setting permanent magnet is added by the two sides of the permanent magnet 22 in the first magnet insertion groove 2111
22, the additional setting permanent magnet 22 in the two sides of the permanent magnet 22 in the second magnet insertion groove 2121 can make and motor rotor
The magnetic flux of the permanent magnet 22 of configuration and the d axis with motor rotor 20 in the first orthogonal magnet insertion groove 2111 of 20 d axis
The d axis that the magnetic flux of the permanent magnet 22 configured in the second orthogonal magnet insertion groove 2121 concentrates on motor rotor 20 is attached
Closely, the efficiency for being conducive to improve motor 10, to promote the performance of motor 10.
Specifically, permanent magnet 22 includes variable magnetic force magnet 221 and fixed magnetic force magnet 222, the first magnet insertion groove
2111 and first are equipped with variable magnetic force magnet 221 in additional magnet insertion groove, i.e. the first magnet insertion groove 2111 and are located at first
The coercivity for the permanent magnet 22 being arranged in first additional magnet insertion groove of 2111 two sides of magnet insertion groove can be equal, the second magnetic
Fixed magnetic force magnet 222, i.e. the second magnet insertion groove are respectively equipped in iron insertion groove 2121 and the second additional magnet insertion groove
2121 and the permanent magnet 22 being arranged in the second additional magnet insertion groove of 2121 two sides of the second magnet insertion groove coercivity
It can be equal.
It can make the variable magnetic force configured in the first magnet insertion groove 2111 orthogonal with the d axis of motor rotor 20 in this way
The fixation magnetic force configured in the magnetic flux of magnet 221 and the second magnet insertion groove 2121 orthogonal with the d axis of motor rotor 20
The magnetic flux of magnet 222 concentrates near the d axis of motor rotor 20, is conducive to the performance for promoting motor 10.
Certainly, the present invention is not limited thereto, and permanent magnet 22 includes variable magnetic force magnet 221 and fixes magnetic force magnet 222, the
Different permanent magnets 22 are respectively equipped in one magnet insertion groove 2111 and the first additional magnet insertion groove.For example, motor rotor 20
The first magnet insertion groove 2111 in be equipped with variable magnetic force magnet 221, and be located at the first of 2111 two sides of the first magnet insertion groove
Fixed magnetic force magnet 222 can be respectively equipped in additional magnet insertion groove, to realize the continuous of the total magnetic flux of permanent magnet 22
Change.
Motor rotor 20 according to an embodiment of the present invention, by promoting the ratio because of electromagnetic action torque obtained,
And permanent magnet 22 is reduced in the thickness of the direction of magnetization, obtain it can under lower magnet torque, still in the related technology
The same torque of motor rotor, obtain the nominal torque characteristic from low rotation speed area to middle rotary speed area and therefrom revolving speed area
Rated power characteristic in domain to high speed area, which, which can apply, is needing to inhibit armature in high-speed region
In the motor 10 of induced voltage caused by spiral.
Motor rotor 20 according to an embodiment of the present invention is specifically described below with reference to multiple embodiments.
Embodiment one
As shown in Figure 1, in the present embodiment, the ontology 21 of motor rotor 20a has multiple along its circumferentially spaced cloth
The magnet slot group set, each magnet slot group include two magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet
Slot 211a and the second magnet slot 212a, wherein the outer edge of the first magnet slot 211a adjacent body 21 is arranged, the second magnet slot
The center of 212a adjacent body 21 is arranged, and the first magnet slot 211a includes a first magnet insertion groove 2111a and is located at first
The first magnet isolation tank 2112a, the second magnet slot 212a at the both ends of magnet insertion groove 2111a includes a second magnet insertion groove
The second magnet isolation tank 2122a of 2121a and the both ends for being located at the second magnet insertion groove 2121a, pair of the first magnet insertion groove 2111a
Axis is claimed to be overlapped with the axis of symmetry of the second magnet insertion groove 2121a.Wherein, the foreign steamer of the first magnet isolation tank 2112a and ontology 21
Magnetic bridge width T1 between exterior feature is greater than the magnetic bridge width T2 between the second magnet isolation tank 2122a and the outer profile of ontology 21, the first magnetic
It is equipped with variable magnetic force magnet 221 in iron insertion groove 2111a, fixed magnetic force magnet 222 is equipped in the second magnet insertion groove 2121a,
It the length for the variable magnetic force magnet 221 being located in the first magnet insertion groove 2111a and is located in the second magnet insertion groove 2121a
The equal length of fixed magnetic force magnet 222.
Embodiment two
As shown in Fig. 2, in the present embodiment, the ontology 21 of motor rotor 20b has multiple along its circumferentially spaced cloth
The magnet slot group set, each magnet slot group include two magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet
Slot 211b and the second magnet slot 212b, wherein the outer edge of the first magnet slot 211b adjacent body 21 is arranged, the second magnet slot
The center of 212b adjacent body 21 is arranged, and the first magnet slot 211b includes a first magnet insertion groove 2111b and is located at first
The first magnet isolation tank 2112b, the second magnet slot 212b at the both ends of magnet insertion groove 2111b includes a second magnet insertion groove
The second magnet isolation tank 2122b of 2121b and the both ends for being located at the second magnet insertion groove 2121b, pair of the first magnet insertion groove 2111b
Axis is claimed to be overlapped with the axis of symmetry of the second magnet insertion groove 2121b.Wherein, the foreign steamer of the first magnet isolation tank 2112b and ontology 21
Magnetic bridge width T1 between exterior feature is greater than the magnetic bridge width T2 between the second magnet isolation tank 2122b and the outer profile of ontology 21.
Each first magnet slot 211b further includes two additional magnet isolation tank 2113b, and two additional magnet isolation tank 2113b are adjacent respectively
The both ends of nearly first magnet insertion groove 2111b are arranged and are located at the outside of the first magnet insertion groove 2111b, two additional magnet isolation tanks
2113b along the circumferentially extending of ontology 21 and is located between two the first magnet isolation tank 2112b respectively, each additional magnet isolation tank 2113b
It is connected and is connected with the first neighbouring magnet isolation tank 2112b respectively.
It is equipped with variable magnetic force magnet 221 in first magnet insertion groove 2111b, is equipped in the second magnet insertion groove 2121b solid
Determine magnetic force magnet 222, the length for the variable magnetic force magnet 221 being located in the first magnet insertion groove 2111b and is located at the second magnet
The equal length of fixation magnetic force magnet 222 in insertion groove 2121b.
Embodiment three
As shown in figure 3, in the present embodiment, the ontology 21 of motor rotor 20b has multiple along its circumferentially spaced cloth
The magnet slot group set, each magnet slot group include two magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet
Slot 211b and the second magnet slot 212b, wherein the outer edge of the first magnet slot 211b adjacent body 21 is arranged, the second magnet slot
The center of 212b adjacent body 21 is arranged, and the first magnet slot 211b includes a first magnet insertion groove 2111b and is located at first
The first magnet isolation tank 2112b, the second magnet slot 212b at the both ends of magnet insertion groove 2111b includes a second magnet insertion groove
The second magnet isolation tank 2122b of 2121b and the both ends for being located at the second magnet insertion groove 2121b, pair of the first magnet insertion groove 2111b
Axis is claimed to be overlapped with the axis of symmetry of the second magnet insertion groove 2121b.Wherein, the foreign steamer of the first magnet isolation tank 2112b and ontology 21
Magnetic bridge width T1 between exterior feature is less than the magnetic bridge width T2 between the second magnet isolation tank 2122b and the outer profile of ontology 21.
Each first magnet slot 211b further includes two additional magnet isolation tank 2113b, and two additional magnet isolation tank 2113b are adjacent respectively
The both ends of nearly first magnet insertion groove 2111b are arranged and are located at the outside of the first magnet insertion groove 2111b, two additional magnet isolation tanks
2113b along the circumferentially extending of ontology 21 and is located between two the first magnet isolation tank 2112b respectively, each additional magnet isolation tank 2113b
It is disconnected respectively with the first neighbouring magnet isolation tank 2112b.
It is equipped with variable magnetic force magnet 221 in first magnet insertion groove 2111b, is equipped in the second magnet insertion groove 2121b solid
Determine magnetic force magnet 222, the length for the variable magnetic force magnet 221 being located in the first magnet insertion groove 2111b and is located at the second magnet
The equal length of fixation magnetic force magnet 222 in insertion groove 2121b.
Example IV
As shown in figure 4, in the present embodiment, the ontology 21 of motor rotor 20a has multiple along its circumferentially spaced cloth
The magnet slot group set, each magnet slot group include two magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet
Slot 211a and the second magnet slot 212a, wherein the outer edge of the first magnet slot 211a adjacent body 21 is arranged, the second magnet slot
The center of 212a adjacent body 21 is arranged, and the first magnet slot 211a includes a first magnet insertion groove 2111a and is located at first
The first magnet isolation tank 2112a, the second magnet slot 212a at the both ends of magnet insertion groove 2111a includes a second magnet insertion groove
The second magnet isolation tank 2122a of 2121a and the both ends for being located at the second magnet insertion groove 2121a, pair of the first magnet insertion groove 2111a
Axis is claimed to be overlapped with the axis of symmetry of the second magnet insertion groove 2121a.Wherein, the foreign steamer of the first magnet isolation tank 2112a and ontology 21
Magnetic bridge width T1 between exterior feature is greater than the magnetic bridge width T2 between the second magnet isolation tank 2122a and the outer profile of ontology 21.
It is equipped with variable magnetic force magnet 221 in first magnet insertion groove 2111a, is equipped in the second magnet insertion groove 2121a solid
Determine magnetic force magnet 222, the length for the variable magnetic force magnet 221 being located in the first magnet insertion groove 2111a, which is less than, is located at the second magnetic
The length of fixation magnetic force magnet 222 in iron insertion groove 2121a.Additional magnet is respectively equipped in each first magnet isolation tank 2112a
Insertion groove, and variable magnetic force magnet 221 is equipped in additional magnet insertion groove.
Embodiment five
As shown in figure 5, in the present embodiment, the ontology 21 of motor rotor 20a has multiple along its circumferentially spaced cloth
The magnet slot group set, each magnet slot group include two magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet
Slot 211a and the second magnet slot 212a, wherein the outer edge of the first magnet slot 211a adjacent body 21 is arranged, the second magnet slot
The center of 212a adjacent body 21 is arranged, and the first magnet slot 211a includes a first magnet insertion groove 2111a and is located at first
The first magnet isolation tank 2112a, the second magnet slot 212a at the both ends of magnet insertion groove 2111a includes a second magnet insertion groove
The second magnet isolation tank 2122a of 2121a and the both ends for being located at the second magnet insertion groove 2121a, pair of the first magnet insertion groove 2111a
Axis is claimed to be overlapped with the axis of symmetry of the second magnet insertion groove 2121a.Wherein, the foreign steamer of the first magnet isolation tank 2112a and ontology 21
Magnetic bridge width T1 between exterior feature is greater than the magnetic bridge width T2 between the second magnet isolation tank 2122a and the outer profile of ontology 21.
It is equipped with variable magnetic force magnet 221 in first magnet insertion groove 2111a, is equipped in the second magnet insertion groove 2121a solid
Determine magnetic force magnet 222, the length for the variable magnetic force magnet 221 being located in the first magnet insertion groove 2111a, which is less than, is located at the second magnetic
The length of fixation magnetic force magnet 222 in iron insertion groove 2121a.Additional magnet is respectively equipped in each first magnet isolation tank 2112a
Insertion groove, additional magnet insertion groove is interior to be equipped with fixed magnetic force magnet 222.
Embodiment six
As shown in fig. 6, in the present embodiment, the ontology 21 of motor rotor 20c has multiple along its circumferentially spaced cloth
The magnet slot group set, each magnet slot group include three magnet slots for being radially spaced arrangement along ontology 21, i.e. the first magnet
Slot 211c, the second magnet slot 212c and third magnet slot 213c, wherein the outer edge of the first magnet slot 211c adjacent body 21 is set
It sets, the center setting of third magnet slot 213c adjacent body 21, the second magnet slot 212c is located at the first magnet slot 211c and third
Between magnet slot 213c, the first magnet slot 211c includes a first magnet insertion groove 2111c and is located at the first magnet insertion groove
The first magnet isolation tank 2112c, the second magnet slot 212c at the both ends of 2111c includes a second magnet insertion groove 2121c and is located at
The second magnet isolation tank 2122c at the both ends of the second magnet insertion groove 2121c, third magnet slot 213c include a third magnet insertion
The third magnet isolation tank 2132c of slot 2131c and the both ends for being located at third magnet insertion groove 2131c, the first magnet insertion groove 2111c's
The axis of symmetry of the axis of symmetry, the second magnet insertion groove 2121c and third magnet insertion groove 2131c is overlapped.First magnet isolation tank
Magnetic bridge width, the second magnet isolation tank 2122c between 2112c and the outer profile of ontology 21 and the magnetic bridge between the outer profile of ontology 21
Magnetic bridge width between width, third magnet isolation tank 2132c and the outer profile of ontology 21 is equal.
Variable magnetic force magnet 221, the second magnet insertion groove 2121c and third magnetic are equipped in first magnet insertion groove 2111c
Fixed magnetic force magnet 222 is respectively equipped in iron insertion groove 2131c, the variable magnetic force magnetic being located in the first magnet insertion groove 2111c
The length of iron 221 is less than the length for the fixation magnetic force magnet 222 being located in the second magnet insertion groove 2121c, is located at the second magnet
The length of variable magnetic force magnet 221 in insertion groove 2121c is less than the fixation magnetic force magnetic being located in third magnet insertion groove 2131c
The length of iron 222.The first additional magnet insertion groove, the insertion of the first additional magnet are respectively equipped in each first magnet isolation tank 2112c
It is equipped with variable magnetic force magnet 221 in slot, is respectively equipped with the second additional magnet insertion groove in each second magnet isolation tank 2122c, second
Fixed magnetic force magnet 222 is equipped in additional magnet insertion groove.
Motor rotor 20c according to an embodiment of the present invention as a result, multiple has by being arranged on the ontology 21 of rotor
Along the magnet slot group of the multiple magnet slots for being radially spaced arrangement of ontology 21, and suitable permanent magnet is configured in magnet slot
22, thus it is possible to vary the magnetic flux of permanent magnet 22 so that the magnetic flux of the permanent magnet 22 in each magnet slot group be synthetically formed it is electronic
The total magnetic flux of machine rotor 20c can change total interlinkage of armature winding in motor stator according to the operating condition of motor 10
Magnetic flux to improve the efficiency of a wide range of operating frequency of the motor 10 from low-speed region to high-speed region, and then improves electricity
The performance of motivation 10.
The motor 10 of embodiment according to a second aspect of the present invention, including the motor rotor 20 according to above-described embodiment.
Since motor rotor 20 according to an embodiment of the present invention has above-mentioned technique effect, the motor 10 of the application also has
Have above-mentioned technical effect, i.e. the structure of the motor 10 is simple, and the connection of each component is reliable, is convenient to mount and dismount, process, manufacture it is easy,
Work efficiency is high, and performance is good.
Embodiment compressor 100 according to a third aspect of the present invention is specifically described with reference to the accompanying drawing.
The compressor 100 of embodiment includes the motor 10 according to above-described embodiment according to a third aspect of the present invention.Specifically
Ground, as shown in fig. 7, compressor 100 is mainly made of casing 30, motor 10 and cylinder 40, wherein casing 30 is formed along vertical
The column that direction (up and down direction as shown in Figure 7) extends is defined along its axially extending accommodating chamber 31 in casing 30, electronic
In machine 10 and the difference of cylinder 40 accommodating chamber 31 arranged spaced apart along the vertical direction.
Since the motor 10 of the embodiment of the present invention has above-mentioned technique effect, pressure according to an embodiment of the present invention
Contracting machine 100 also has above-mentioned technique effect, i.e. the structure of the compressor 100 is simple, and each component connection is reliable, is convenient to mount and dismount, adds
Work, manufacture are easy, and high production efficiency is high-efficient, and performance is good.
Other of motor 10 and compressor 100 according to an embodiment of the present invention are constituted and are operated general for this field
All be for logical technical staff it is known, be not detailed herein.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature right above second feature and oblique upper, or be merely representative of
First feature horizontal height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (6)
1. a kind of motor rotor characterized by comprising
Ontology, the ontology have it is multiple along its axially through and along its circumferentially spaced arrangement magnet slot group, it is each described
Magnet slot group respectively includes at least two magnet slots for being radially spaced arrangement along the ontology, each magnet slot difference
Including magnet insertion groove and magnet isolation tank, the magnet insertion groove extends along the d axis direction perpendicular to the ontology, the magnet isolation tank
It is located at the both ends of the magnet insertion groove and is connected with the magnet insertion groove, q axis direction of the magnet isolation tank along the ontology
Extend outwardly；
Multiple permanent magnets, multiple permanent magnets are plugged on respectively in multiple magnet slots, the ontology radially, position
It is greater than in the coercivity of the permanent magnet of grafting in the magnet insertion groove of the inner circumferential of the ontology positioned at the ontology
The coercivity of the permanent magnet of grafting in the magnet insertion groove of periphery, each magnet slot group are respectively included along described
The the first magnet slot, the second magnet slot and third magnet slot for being radially spaced arrangement of ontology, the first magnet slot position is in institute
State the outside of the second magnet slot and the first magnet slot adjacent to the ontology outer edge be arranged, the second magnet slot position in
The outside of the third magnet slot, the first magnet slot include the first magnet insertion groove and the first magnet isolation tank, second magnetic
Metal trough includes the second magnet insertion groove and the second magnet isolation tank, and the third magnet slot includes third magnet insertion groove and third every magnetic
Slot, first magnet isolation tank is interior to be equipped with the first additional magnet insertion groove, is equipped with the second additional magnet in second magnet isolation tank and inserts
Enter slot, permanent magnet, the permanent magnet packet are respectively equipped in the first additional magnet insertion groove and the second additional magnet insertion groove
Include variable magnetic force magnet and fixed magnetic force magnet, difference in the first magnet insertion groove and the first additional magnet insertion groove
Equipped with different permanent magnets.
2. motor rotor according to claim 1, which is characterized in that the permanent magnet includes variable magnetic force magnet and consolidates
Determine magnetic force magnet, is equipped with the variable magnetic force magnet in the first magnet insertion groove, the second magnet insertion groove and described
The fixed magnetic force magnet is respectively equipped in third magnet insertion groove.
3. motor rotor according to claim 2, which is characterized in that the second magnet insertion groove and the third magnetic
The coercivity of the fixed magnetic force magnet in iron insertion groove is equal.
4. motor rotor according to claim 1, which is characterized in that the permanent magnet includes variable magnetic force magnet and consolidates
Determine magnetic force magnet, be equipped with the variable magnetic force magnet in the first magnet insertion groove and the first additional magnet insertion groove,
The fixed magnetic force magnet is respectively equipped in the second magnet insertion groove and the second additional magnet insertion groove.
5. a kind of motor, which is characterized in that including motor rotor of any of claims 1-4.
6. a kind of compressor, which is characterized in that including the motor described in claim 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514012.5A CN105978198B (en) | 2016-06-30 | 2016-06-30 | Motor rotor and motor, compressor with it |
| CN201910285777.XA CN110011442B (en) | 2016-06-30 | 2016-06-30 | Motor rotor and motor and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514012.5A CN105978198B (en) | 2016-06-30 | 2016-06-30 | Motor rotor and motor, compressor with it |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910285777.XA Division CN110011442B (en) | 2016-06-30 | 2016-06-30 | Motor rotor and motor and compressor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105978198A CN105978198A (en) | 2016-09-28 |
| CN105978198B true CN105978198B (en) | 2019-05-24 |
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| CN201610514012.5A Active CN105978198B (en) | 2016-06-30 | 2016-06-30 | Motor rotor and motor, compressor with it |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6802087B2 (en) * | 2017-02-23 | 2020-12-16 | ファナック株式会社 | Rotor |
| JP6841130B2 (en) * | 2017-03-30 | 2021-03-10 | Tdk株式会社 | motor |
| CN108777520B (en) * | 2018-07-17 | 2020-03-27 | 珠海格力电器股份有限公司 | Alternating-pole motor |
| CN112689939A (en) * | 2018-11-09 | 2021-04-20 | 爱信艾达株式会社 | Rotor core for rotating electrical machine |
| CN109742880A (en) * | 2019-02-20 | 2019-05-10 | 哈尔滨工业大学 | Built-in V-type-with anti-salient pole nature "-" type hybrid permanent magnet is adjustable flux electric machine |
| CN109831083A (en) * | 2019-04-08 | 2019-05-31 | 哈尔滨工业大学 | The built-in U-shaped series-parallel adjustable flux permanent magnet synchronous motor of mixed magnetic circuit of "-" type- |
| CN109980878A (en) * | 2019-04-08 | 2019-07-05 | 哈尔滨工业大学 | The U-shaped series-parallel adjustable flux permanent magnet synchronous motor of mixed magnetic circuit of internal type V- |
| JP7293371B2 (en) * | 2019-09-24 | 2023-06-19 | 株式会社東芝 | Rotor of rotary electric machine |
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| CN103187816A (en) * | 2011-12-28 | 2013-07-03 | 瑞美技术有限责任公司 | Dual magnet rotor |
| CN103501067A (en) * | 2013-09-25 | 2014-01-08 | 广东美芝制冷设备有限公司 | Rotor of electromotor |
| CN103580322A (en) * | 2012-07-24 | 2014-02-12 | 广东美芝精密制造有限公司 | Permanent magnet motor rotor structure for compressor |
| CN204615531U (en) * | 2014-04-23 | 2015-09-02 | 三菱电机株式会社 | Permanent magnet submerged motor, compressor and refrigerating air conditioning device |
| CN206060384U (en) * | 2016-06-30 | 2017-03-29 | 广东美芝制冷设备有限公司 | Motor rotor and the motor with which, compressor |
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| JP5159577B2 (en) * | 2008-11-19 | 2013-03-06 | 株式会社東芝 | Permanent magnet rotating electric machine |
| JP5178488B2 (en) * | 2008-12-16 | 2013-04-10 | 株式会社東芝 | Permanent magnet rotating electric machine |
| US20130127280A1 (en) * | 2010-07-30 | 2013-05-23 | Hitachi, Ltd. | Electric rotating machine and electric vehicle using the same |
| US9472986B2 (en) * | 2011-12-26 | 2016-10-18 | Mitsubishi Electric Corporation | Rotor |
| JP2014200150A (en) * | 2013-03-29 | 2014-10-23 | 株式会社東芝 | Permanent magnet type reluctance rotary electric machine |
| CN204761190U (en) * | 2015-06-19 | 2015-11-11 | 广东美芝制冷设备有限公司 | Rotor subassembly and rotary compressor who has it |
| CN205355991U (en) * | 2016-02-02 | 2016-06-29 | 安徽美芝精密制造有限公司 | Rotor, motor and compressor of motor |
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- 2016-06-30 CN CN201910285777.XA patent/CN110011442B/en active Active
- 2016-06-30 CN CN201610514012.5A patent/CN105978198B/en active Active
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| CN103187816A (en) * | 2011-12-28 | 2013-07-03 | 瑞美技术有限责任公司 | Dual magnet rotor |
| CN103580322A (en) * | 2012-07-24 | 2014-02-12 | 广东美芝精密制造有限公司 | Permanent magnet motor rotor structure for compressor |
| CN103501067A (en) * | 2013-09-25 | 2014-01-08 | 广东美芝制冷设备有限公司 | Rotor of electromotor |
| CN204615531U (en) * | 2014-04-23 | 2015-09-02 | 三菱电机株式会社 | Permanent magnet submerged motor, compressor and refrigerating air conditioning device |
| CN206060384U (en) * | 2016-06-30 | 2017-03-29 | 广东美芝制冷设备有限公司 | Motor rotor and the motor with which, compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110011442A (en) | 2019-07-12 |
| CN105978198A (en) | 2016-09-28 |
| CN110011442B (en) | 2022-02-11 |
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