CN104426266B - Permanent magnet motor, compressor and refrigerating circulatory device using it - Google Patents
Permanent magnet motor, compressor and refrigerating circulatory device using it Download PDFInfo
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- CN104426266B CN104426266B CN201410379818.9A CN201410379818A CN104426266B CN 104426266 B CN104426266 B CN 104426266B CN 201410379818 A CN201410379818 A CN 201410379818A CN 104426266 B CN104426266 B CN 104426266B
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- 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
- H02K1/2713—Inner rotors the magnetisation axis of the magnets being axial, e.g. claw-pole type
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Abstract
The present invention is provided and uses the permanent magnet motor of spoke shape magnet, the leakage magnetic flux that can reduce permanent magnet and the raising for realizing torque, efficiency.In order to realize the purpose, permanent magnet motor of the invention includes：Stator, it has multiple teeth；And rotor, it is configured to diametrically separate gap relative to the stator, wherein, the rotor is combined and constituted in the axial direction each other by the S pole pieces material for being geomagnetic into S poles side and the N pole pieces material for being geomagnetic into N poles side, the S pole pieces material is formed with multiple S side convex portions raised to outer circumferential, and the N pole pieces material is formed with multiple N side convex portions raised to outer circumferential, by combining the S pole pieces material with the N pole pieces material, respective S sides convex portion is configured with N sides convex portion in mode different each other, between the S sides convex portion and N sides convex portion configured in mode different each other, convex portion permanent magnet is configured with the way of S sides projection is N poles as S poles and N sides projection.
Description
Technical field
The present invention relates to permanent magnet motor, compressor and refrigerating circulatory device using the permanent magnet motor.
Background technology
In permanent magnet motor, the widely used Interior Permanent for burying permanent magnet in the rotor
Magnet (hereinafter referred to as IPM) is constructed.In IPM constructions, the collocation method according to magnet insertion holes is determined can be true to greatest extent
The size of the magnet surface product of guarantor.In order to miniaturization, torque raising and the efficiency of realizing motor are improved, it is necessary in rotor profiles
The confined space in as far as possible increase magnet surface product, as the means for this, have disclosed in Japanese Unexamined Patent Publication 6-245451
In the circumferential configuration magnetize after magnet technology (hereinafter referred to as spoke shape magnet configuration).
By using spoke shape magnet configuration, it can be ensured that it is the face for diametrically extending that magnetic flux produces face.Therefore, with general
Magnet insertion holes are configured to substantially V shape and the method along the magnet being inserted radially into after magnetize compares, with easily increase
The advantage of magnet surface product.The advantage is particularly effective in the case where magnet is made up of multipole, the magnet without reducing unit pole
Surface area can just increase number of poles (magnet number).That is, the magnetic produced from rotor can be proportionally increased with the increase of number of poles
Flux.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 6-245451 publications
Brief summary of the invention
The invention problem to be solved
However, as shown in figure 9, in the case of using spoke shape magnet configuration, centrifugation is directed to for the purpose of ensuring that rotor core 2
The intensity of power in the radially inner circumference side of magnet, it is necessary to set core inner circumferential linking part 101.Therefore, in core inner circumferential linking part 101
It is local produce leakage magnetic flux, there is a problem of to obtain and the magnet surface corresponding magnetic flux of product.
As the solution countermeasure for the problem, the structure with Figure 10.In Fig. 10, core is constituted using nonmagnetic material
Inner circumferential linking part 101, with extremely unit make rotor core 2 turn into layering core 2a, 2b ... 2h, so as to eliminate the radial direction of magnet
The magnet short-cut path of inner circumferential side.By using said structure, the leakage magnetic flux of core inner circumferential linking part 101 can be suppressed, it can be ensured that with
Magnet surface accumulates corresponding magnetic flux.But, in the case of using the structure of Figure 10, in order to layering core 2 is anchored on into core
Material inner circumferential linking part 101 and need wedge 102, the intensity of the part ensures to turn into problem.Simultaneously, it is necessary in core inner circumferential linking part
101 recesses (or convex portion) that wedge shape is set, as there are shaping/processing difficulties.
In addition, as the common problem of the structure of Fig. 9, Figure 10, can include, diametrically increase spoke shape magnetic
Iron, the magnetize of permanent magnet becomes difficult.
The content of the invention
It is an object of the present invention in the permanent magnet motor using spoke shape magnet, reduce the leakage field of permanent magnet
It is logical, realize that torque raising/efficiency is improved.
Solution
In order to realize the purpose, it is a feature of the present invention that：
A kind of permanent magnet motor, it includes：Stator, it has multiple teeth；And rotor, it is configured to fixed relative to this
Son diametrically separates gap, wherein,
The rotor is by the S pole pieces material for being geomagnetic into S poles side and the N pole pieces material for being geomagnetic into N poles side each other in axial direction
It is upper combination and constitute,
The S pole pieces material is formed with multiple S side convex portions raised to outer circumferential, and the N pole pieces material be formed with it is many
The individual N side convex portion raised to outer circumferential, by combining the S pole pieces material and the N pole pieces material so that the S pole pieces material with
The respective S sides convex portion of N pole pieces material is configured with N sides convex portion in mode different each other,
It is S poles with S sides projection between the S sides convex portion and N sides convex portion configured in mode different each other
And N sides projection is configured with convex portion permanent magnet for the mode of N poles.
Invention effect
According to the present invention, in the permanent magnet motor using spoke shape magnet, the leakage magnetic flux of permanent magnet can be suppressed,
Can realize that torque raising/efficiency is improved.
Problem, structure and effect beyond described are given clearly by the explanation of implementation below.
Brief description of the drawings
Fig. 1 is three-dimensionally show permanent magnet motor, stator and rotor in the first embodiment of invention circumferential 1/4
Partial figure.
Fig. 2A is that rotor, S pole piece material 2S and N pole piece materials 2N the assemble method in the first embodiment of the present invention is entered
The figure of row explanation.
Fig. 2 B are that rotor, S pole piece material 2S and N pole piece materials 2N the assemble method in the first embodiment of the present invention is entered
The figure of row explanation.
Fig. 3 A are the permanent magnet motors shown in the first embodiment of the present invention using the cross section vertical with rotary shaft
Rotor partial sectional view.
Fig. 3 B are using the permanent magnet motor shown along the vertical section of rotary shaft in the first embodiment of the present invention
The partial sectional view of rotor.
Fig. 4 is the circumference for three-dimensionally showing permanent magnet motor, stator and rotor in the first embodiment of the present invention
The figure of 1/4 part.
Fig. 5 is the circumference for three-dimensionally showing permanent magnet motor, stator and rotor in the second embodiment of the present invention
The figure of 1/4 part.
Fig. 6 A are the permanent magnet motors shown in the third embodiment of the present invention using the cross section vertical with rotary shaft
Rotor partial sectional view.
Fig. 6 B are using the permanent magnet motor shown along the vertical section of rotary shaft in the third embodiment of the present invention
The partial sectional view of rotor.
Fig. 7 is the circumference for three-dimensionally showing permanent magnet motor, stator and rotor in the fourth embodiment of the present invention
The figure of 1/4 part.
Fig. 8 is the sectional structure chart of the compressor in the fifth embodiment of the present invention.
Fig. 9 is the permanent magnetism shown in the first comparative example being compared with the present invention using the cross section vertical with rotary shaft
The stator of type motor and the partial sectional view of rotor.
Figure 10 is shown in the second comparative example being compared with the present invention forever using the cross section vertical with rotary shaft
The partial sectional view of the rotor of magnet type motor.
Description of reference numerals is as follows：
1 ... rotor；2 ... rotor cores；2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h ... rotor core convex portion；2S ... S poles side core
Material；2N ... N poles side core material；3rd, 3a, 3b ... are in the circumferential by the permanent magnet after magnetize；3Z ... in the axial direction by after magnetize forever
Long magnet；4 ... permanent magnet accepting holes；5 ... riveting rivets；6 ... axis bodies or bent axle；7a, 7b ... slit；8a, 8b ... rib；
9 ... stators；10 ... stator cores；11 ... teeth；12 (12u1,12u2,12v1,12v2,12w1,12w2) ... stator coils；13…
Fixed eddy plate component；14 ... end plates；15 ... swirling roll bendings；16 ... swirling scroll components；17 ... end plates；18 ... swirling are rolled up
Plate；19 (19a, 19b) ... discharge chambes；20 ... outlets；21 ... frameworks；22 ... pressure vessels；23 ... discharge pipes；24 ... balance weights
Block；25 ... store oil portions；26 ... oilholes；27 ... sliding bearings；30 ... terminal boxs；101st, 101N, 101S ... core inner circumferential linking part；
102 ... wedges；103 ... permanent-magnet motors；104 ... Exciting Windings for Transverse Differential Protection；105a, 105b ... core inner circumferential hole
Specific embodiment
Hereinafter, embodiments of the invention are illustrated referring to the drawings.In the following description, to identical structural element mark
Note identical reference.The title and function phase of these references are same, omit repeat specification.In addition, in following explanation
In, using internal rotor as object, but effect of the invention is not limited to internal rotor, it is also possible to be applied to mutually isostructural outer
Rotor.In addition, the winding mode of stator both can be concentrated winding, or distributed winding.In addition, the number of poles of rotor, fixed
The number of phases of subcoil is also not limited to the structure of embodiment.In addition, in the following description, with the permanent-magnet motor that converter drives
Used as object, but the present invention can also apply to self-starting type permanent-magnet motor.
(embodiment 1)
Hereinafter, the first embodiment of the present invention is illustrated using Fig. 1~Fig. 4.Fig. 1 is three-dimensionally to show the present embodiment
In permanent magnet motor, stator and rotor circumferential 1/4 part figure.Fig. 2 is that the assemble method of the rotor of Fig. 1 is carried out
The figure of explanation.Fig. 3 A are to show Fig. 1, the partial sectional view of 2 rotor using the cross section vertical with rotary shaft.Fig. 3 B are to utilize
The partial sectional view of the rotor of Fig. 3 A is shown along the vertical section of rotary shaft.Fig. 4 shows to be provided with the permanent magnet motor of Fig. 1
The figure of slit, and be the figure for three-dimensionally showing circumferential 1/4 part with Fig. 1 identicals stator and rotor.
As shown in figure 1, in the permanent magnet motor of the present embodiment, possessing rotor 1 in the inner circumferential side of stator 9.Rotor 1 with
Remained by bearing (not shown) relative to the mode that stator 9 separates clearance G and rotated freely.Stator 9 is by stator core 10 and volume
The stator coil 12 for being around in tooth 11 is constituted.Stator coil 12 is configured with three-phase windings U, V, W successively in the circumferential.U phases, V phases with
And there is coil being respectively connected for W phases.Herein, it is illustrated that three coils 12u1,12v1,12w1, but in the same manner, each phase line of U, V, W
Other three groups, i.e. 12u2,12v2,12w2,12u3,12v3,12w3,12u4,12v4,12w4 points of circle is opened and is wound in each tooth 11,
Constitute the permanent magnet motor of winding with one heart.Therefore, stator 9 is provided with tooth 11 and groove at 12.Rotor 1 includes possessing permanent
The rotor core 2 of magnet accepting hole 4 and the permanent magnet 3 configured in the way of 8 poles (number of pole-pairs p=4) of composition.Permanent magnet 3
The direction of upper described arrow represents the direction of magnetization of magnet.
In order to prevent because permanent magnet 3 disperses caused by centrifugal force, set in the outer radial periphery side end of permanent magnet 3
There is the rib 8a raised in the circumferential relative to rotor core 2.Because rib 8a turns into the short circuit path of the magnetic flux of permanent magnet and makes
Leakage magnetic flux increases, therefore is provided with the gap of proper width in the circumferential as shown in Figure 1, to suppress leakage magnetic flux.In rotor 1
Central part is formed with the through hole 6a for axis body (rotary shaft, output shaft) 6 insertions, and being passed through in through hole 6a has axis body 6.
As shown in Fig. 2A, Fig. 2 B, the rotor 1 of the permanent magnet motor of the present embodiment is by being geomagnetic into the S pole pieces of S poles side
Material 2S is combined and constituted in the axial direction each other with the N pole piece materials 2N for being geomagnetic into N poles side, and oriented circumference is formed in S pole piece materials 2S
Raised S sides convex portion 2b, 2d, 2f, 2h (only illustrating 2b in Fig. 1) in outside, and it is convex to form oriented outer circumferential in N pole piece materials
N sides convex portion 2a, 2c, 2e, 2g (only illustrating 2a in Fig. 1) risen, by combination S pole piece material and N pole piece materials, each S sides convex portion
2b, 2d, 2f, 2h and N side convex portion 2a, 2c, 2e, 2g are configured in mode different each other.
Also, it is configured with convex portion permanent magnet between the S sides convex portion and N sides convex portion configured in mode different each other
3a, 3b, 3c ..., the permanent magnet are configured in the way of S sides projection is N poles as S poles and N sides projection.In addition, in S pole pieces
Other cores permanent magnet 3Z is also configured between material 2S and N pole piece material 2N, the core permanent magnet is with N pole piece materials side
N poles and S pole piece materials side configure for the mode of S poles.It should be noted that Fig. 2A show rotor 1 layering core in, in S poles
Core 2S is provided with convex portion permanent magnet (3a, 3b, 3c ...) and is provided with core permanent magnet 3Z in N pole piece materials 2N
State, Fig. 2 B are shown without installing convex portion permanent magnet (3a, 3b, 3c ...) and being intended to using N pole piece material 2N and S pole pieces
Material 2S clamps the state of core permanent magnet 3Z.In addition, in Fig. 1, each convex portion permanent magnet 3a, 3b, 3c are with one
Show, but they are using the S poles shown in Fig. 2 and the pole configuration of N poles.This point is also identical with permanent magnet 3Z for core.
In Fig. 1, each convex portion permanent magnet 3a, 3b, 3c is integrally to show, but as shown in Fig. 2 they are by as the permanent of S poles
Magnet is constituted with the permanent magnet for turning into N poles.This point is also identical with permanent magnet 3Z for core.
N sides convex portion 2a is seemed in the state of Fig. 1 and floated in midair, but really not so, and N sides convex portion 2a is utilized and is arranged at N
The riveting rivet 5a of the insertion in the axial direction of side convex portion 2a and mechanically link/fix with N pole piece materials 2N.In addition, N sides convex portion
2a also mechanically links/fixes by riveting rivet 5a with the end plate 14 (not shown) of the axial end portion for being arranged at rotor 1.
Therefore, N sides convex portion 2a will not disperse because of centrifugal force.On the other hand, S sides convex portion 2b utilizes core inner circumferential linking part 101S in week
Mechanically link with other S sides convex portions upwards, be configured to propeller-like.In S sides, convex portion 2b is also equipped with insertion in the axial direction
Rivet 5b use in riveting, float over state in midair S sides convex portion 2b (not expressing because being blind area in Fig. 1) utilization rivet 5b and with
S pole piece materials 2S mechanically links/fixes.In addition, S sides convex portion 2b also by riveting rivet 5b with the axle for being arranged at rotor 1
Mechanically link/fix to the end plate 14 (not shown) of end.It should be noted that in Fig. 1, in order that the work of rivet insertion
When it is minimum, using the structure for setting in each pole rivet 5 at, but for improving the purpose of strength of connection, it is also possible at each
Pole sets many places rivet 5.In addition, the position on configuring rivet 5, it is also possible to be arranged on the center of pole, to avoid turning into permanent
The obstruction of the magnetic flux path of magnet, in the case where rivet 5 is constituted using magnetic, because rivet 5 itself also can be effectively sharp
As magnetic circuit, therefore it is not necessarily required to center of the configuration in pole.
If as shown in figure 3, above structure is divided into axially, and three sections A, B, C are illustrated and will readily appreciate that.Here, in the lump
Illustrate to suppress the leakage magnetic flux of permanent magnet so as to realize the principle that torque raising/efficiency is improved using the structure of the present embodiment.Need
It is noted that the z-axis direction shown in Fig. 3 is corresponding with the z-axis direction of Fig. 1.
First, N sides convex portion 2a, 2c, 2e, 2g is respectively formed as floating over state in midair in section A, B, on the other hand
Ground, in section C, is configured to the N pole piece materials 2N of the propeller-like using core inner circumferential linking part 101N links.The N of section A, B
Side convex portion 2a, 2c, 2e, 2g be utilized respectively N side convex portion 2a, 2c, 2e of the riveting of insertion in the axial direction with rivet 5 with section C,
2g mechanically links/fixes.Therefore, the N sides convex portion of section A, B will not disperse because of centrifugal force.For the magnetic for penetrating N sides convex portion
It is ferromagnetic logical, in section A, B, because core inner circumferential hole 105a, 105b turn into magnetic flux potential barrier, therefore, it is possible to suppress towards core
The leakage magnetic flux of inner circumferential side, can make the exhausted of the magnetic flux produced by convex portion permanent magnet 3 (magnet after being magnetized in the circumferential)
Penetrated to stator side mostly as useful flux.On the other hand, in section C, due to there is core inner circumferential linking part
101N, therefore N sides convex portion 2a, 2c, 2e, 2g appear in core inner circumferential side by magnet short-cut path, but because N sides convex portion is unquestionable each other
It is homopolarity, so short circuit path will not be formed in core inner circumferential side, in section C, it is also possible to make to be produced by convex portion permanent magnet 3
The overwhelming majority of raw magnetic flux is penetrated as useful flux to stator side.
For S sides convex portion 2b, 2d, 2f, 2h, equally also it is respectively formed as in section B, C floating over state in midair, relatively
In this place, in section A, it is configured to the S pole piece materials 2S of the propeller-like using core inner circumferential linking part 101S links.Section B,
S sides convex portion 2b, 2d, 2f, 2h of C be utilized respectively S side convex portion 2b of the riveting of insertion in the axial direction with rivet 5 with section A,
2d, 2f, 2h mechanically link/fix.Therefore, the S sides convex portion of section B, C will not disperse because of centrifugal force.It is convex for penetrating S sides
The magnet magnetic flux in portion, because in section B, C, core inner circumferential hole 105a, 105b turn into magnetic flux potential barrier, therefore, it is possible to suppress court
To the leakage magnetic flux of core inner circumferential side, the overwhelming majority of the magnetic flux produced by convex portion permanent magnet 3 can be made as useful flux
And penetrated to stator side.On the other hand, although there is core inner circumferential linking part 101S in section A, but due to S sides convex portion 2b,
2d, 2f, 2h are each other undoubtedly homopolarities, so short circuit path will not be formed in core inner circumferential side, in section A, it is also possible to
The overwhelming majority of the magnetic flux produced from convex portion permanent magnet 3 is set to be penetrated to stator side as useful flux.
As long as it should be noted that core inner circumferential hole 105a can be utilized to constitute enough magnetic flux potential barrier, then not necessarily
Need to set core inner circumferential hole 105b, it is also possible in order to improve strength of connection/mechanical strength and the part in 105b uses iron
And rivet hole is set.
Then, the core for being configured at section B is said with the path that penetrates of the structure of permanent magnet 3Z, magnet magnetic flux
It is bright.As shown in Figure 2,3, core permanent magnet 3Z is configured to ring-type, is magnetized in the way of the z-axis direction born turns into N poles.Core
Timber-used permanent magnet 3Z can utilize the ringshaped magnet of one to constitute, it is also possible to using the multiple fan-shapeds after being circumferentially divided
Magnet is constituted, and multiple square magnet can also be utilized to constitute.Resin 106 shown in Fig. 2 is to carry out S pole piece materials 2S and N
Chimeric positioning between pole piece material 2N, two idle running of core when preventing rotation and set.The shape of resin 106 differs
Fixed limit is set to the shape of diagram, as long as the purpose, or other shapes can be realized.Alternatively, it is also possible in the axial direction by
It is divided into multiple.The magnetic flux produced by core permanent magnet 3Z is in put through core inner circumferential linking part 101N in section C
Shape diffusion is penetrated, and N sides convex portion 2a, 2c, 2e, 2g are passed through towards interval G, so as to be penetrated to stator side as useful flux.
There is core inner circumferential hole 105a, 105b between core inner circumferential linking part 101N and S sides convex portion 2b, 2d, 2f, 2h, due to core
Inner circumferential hole 105a, 105b plays a role as magnetic flux potential barrier, therefore, it is possible to suppress the leakage magnetic flux through the path.From such
Viewpoint is set out, preferably radially the big core inner circumferential hole 105a of width, and is preferably provided with core inner circumferential hole 105b.In addition,
Core is bigger with the radial width of permanent magnet 3Z, and the magnetic flux produced by the magnet increases, therefore need not be by spoke
Shape magnet 3 is configured in internal side diameter.Thereby, it is possible to solve the problem of the foregoing magnetize for being difficult to spoke shape magnet.
The magnetic flux penetrated to stator side from core permanent magnet 3Z forms following closed loop：Stator core is passed through in the axial direction
10, by clearance G and pass through S sides convex portion 2b, 2d, 2f, 2h, through core inner circumferential linking part 101S after return core permanent magnetic
Iron 3Z.Here, in the case where stator core 10 is constituted by stacked steel plate, it is necessary to note following item.Typically, since layer
The magnetic susceptibility of folded steel plate is low, therefore magnetic resistance is big, and core is reduced with the useful flux of permanent magnet 3Z.Therefore, in stacked steel plate
In the case of, the patchhole of magnetic is set using the section unshakable in one's determination penetrated readily through in axial magnetic flux and the knot of magnetic material is inserted
Structure, or the housing of stator holding is made up of magnetic.As method in addition, it would however also be possible to employ not by being laminated
Steel plate composition stator core 10, but the method that stator core 10 is made up of compressed-core.
On the other hand, preferred rotor iron core 2 is made up of stacked steel plate, and axis body 6 is made up of nonmagnetic substance.By adopting
With said structure, the leakage magnetic flux in the z-axis direction of core permanent magnet 3Z can be suppressed.
It should be noted that in figure 3b, make the axial length of section A, B, C roughly the same, but be not necessarily required in this way,
In the case where wanting to increase core with the magnetic flux produced by permanent magnet 3Z, can be using the direction of magnetization for increasing the magnet
Thickness and increase unit permeance, i.e., make the axial length of the section B structure more long than section A or C, on the contrary, it would however also be possible to employ
The structure for making the axial length of section B shorter than section A or C, is realized by reducing core with the magnet amount of permanent magnet 3Z
Material cost reduction.But, from from the viewpoint of ensuring demagnetization endurance, if convex portion is used forever with the magnetic resistance of permanent magnet 3 with core
There are extreme differences in the magnetic resistance of long magnet 3Z, then demagnetized field can concentrate on wherein one party, therefore preferably respectively by permanent magnetic
The direction of magnetization thickness of iron is chosen to be appropriate value with confining force, to reduce the difference of magnetic resistance.
According to above structure, in the case of using spoke shape magnet, the leakage magnetic flux of rotor inner circumferential side can reduced
The mechanical strength of rotor is ensured simultaneously, also, due to increasing magnetic flux by configuring core with permanent magnet 3Z, therefore, it is possible to
Realize that torque raising/efficiency is improved.Further, since spoke shape magnet 3 is configured in rotor outer periphery side, thus the magnet magnetize
Become easy, manufacturability is significantly improved, and the aberrations in property for playing magnetic because of permanent magnet can be greatly decreased.
However, the structure of Fig. 1 is the IPM structures that permanent magnet is embedded with rotor core, magnetic can be effectively utilized
Suitable structure is may be considered in the case of resistive torque.However, according to purposes, output and motor dimension difference, sometimes
Even with the IPM constructions of Fig. 1, i.e. even if increase salient pole ratio, it is also difficult to effectively using reluctance torque.Because, magnetic resistance turns
The size of square be not only dependent upon salient pole than size, additionally depend on and the relativeness between magnet torque.In such feelings
Under condition, according to the structure of Fig. 1, because salient pole ratio is big, therefore inductance increases, and causes iron loss increase or high speed to become difficult.
In this regard, being configured in S sides convex portion and N sides convex portion by by the slit 7a, the 7b that are made up of nonmagnetic material shown in Fig. 3
Axial direction on insertion, thereby reduce orthogonal axle inductance, relaxed the magnetic saturation of stator core.Thereby, it is possible to more high speed
Rotation at a high speed is driven, while can further realize that torque raising and efficiency are improved.
As long as slit 7a, 7b are configured to do not hindering the normal axis magnetic flux of being hindered while penetrating of magnet magnetic flux to penetrate i.e.
Can, both could be arranged to linear, it is also possible to be set to arc-shaped.In addition, can both be successively formed, it is also possible to use rib decile
Cut and constitute.In addition, in fig. 4, each pole is configured with four, but as long as can be any number in the range of it can manufacture.Separately
Outward, the width of each slit 7a, 7b both can be uniform, or uneven.
As described above, slit 7a, 7b do not hinder penetrating for magnet magnetic flux, but hinder penetrating for normal axis magnetic flux.Therefore, it is right
In magnet magnetic flux and normal axis magnetic flux that rotor core 2 is penetrated in the state of slit 7a, 7b is not provided with, slit 7a, 7b set
It is set to and crosses normal axis magnetic flux, and is set to not cross magnet magnetic flux as much as possible but along magnet magnetic flux.If to be adapted to be somebody's turn to do
The mode of condition sets slit 7a, 7b, then slit 7a, 7b is formed as crossing the direction of normal axis magnetic flux (along magnet magnetic flux
Direction) on compared with (size is big) long, and the shorter (size on the direction (along the direction of normal axis magnetic flux) for cross magnet magnetic flux
Small or width is thin) shape.
It should be noted that the effect that slit 7a is brought also is obtained in that in the case where slit 7b is not provided with, therefore
It is not necessarily required to set slit 7b.But, by setting slit 7b, the minimizing effect of orthogonal axle inductance further increases, can
Further relax the magnetic saturation of stator core.Thereby, it is possible to further realize high speed rotation driving, while can further realize
Torque raising and efficiency are improved.
(embodiment 2)
Hereinafter, the second embodiment of the present invention is illustrated using Fig. 5.Fig. 5 is three-dimensionally to show of the invention second
The figure of circumferential 1/4 part of the permanent magnet motor of embodiment, stator and rotor.
The structure of the present embodiment is with the difference of Fig. 1, using the outer radial periphery side end for being arranged at permanent magnet 3
The rib 8a and rib 8b of the inner peripheral portion for being arranged at rotor core 2 make N sides convex portion 2a, 2c, 2e, 2g (2c, 2e, 2g are not shown) and S
Side convex portion 2b, 2d, 2f, 2h (2d, 2f, 2h are not shown) is configured to the state of mechanical link.In other words, in Fig. 1, N sides
Convex portion 2a and S sides convex portion 2b is constituted using single core, but is formed as one in Figure 5.
By that using such structure, can be become especially easily with one treatment rotor core 2, therefore assembling operation,
Manufacturing cost is greatly reduced therewith.Further, since N sides convex portion, S sides convex portion are not configured to float in midair, therefore, even with
Rivet 5 and end plate 14 (not shown) enter joining line/fixation to the part, it is also possible to which the centrifugal force that reduction puts on rivet 5 is born
Carry.Even if that is, due to reduce rivet 5 mechanical strength can also, therefore, it is possible to use thinner rivet, or by reducing riveting
The radical of nail realizes the reduction of material cost.
It should be noted that any one of rib 8a, rib 8b can both be integrally formed with N sides convex portion, S sides convex portion, separately
One, using the structure for being provided with appropriate width gaps in the circumferential, is being conceived to any one magnetic as the rib 8a of Fig. 1
During iron, it would however also be possible to employ the structure that any one of rib 8a, rib 8b mechanically link N sides convex portion and S sides convex portion.By using
Such structure, can simultaneously obtain the integration of rotor core 2, the centrifugal force load reduction of rivet and the reduction of leakage magnetic flux
Deng multi-effect.
However, as shown in figure 5, in the case where rib 8a, 8b is set, be obtained in that foregoing effect, on the other hand, due to
The part turn into permanent magnet magnetic flux short circuit path, leakage magnetic flux increase, therefore exist cause torque reduction, efficiency reduction
Problem.In order to solve the problem, permanent magnet 3 uses the confining force magnet high such as rare earth element magnet.Reason is entered below
Row explanation.
In Figure 5, rib 8a, 8b is configured to narrower width for the purpose for reducing leakage magnetic flux.Therefore, although produce leakage
Magnetic flux, but the part is susceptible to magnetic saturation.If generation magnetic saturation, as the magnetic resistance with gap equal extent, therefore leakage field
Logical stabilization turns into the useful flux penetrated through gap and to stator side in a certain constant level, remaining magnetic flux.For example,
In the case that permanent magnet 3 uses the low magnet of confining force as ferrite lattice, for magnetic saturation that rib 8a, 8b occur
The leakage magnetic flux than larger ratio is needed, useful flux is relative to be reduced.On the other hand, for example, using neodymium magnetic in permanent magnet 3
In the case of the magnet high of confining force as iron, the magnetic saturation of rib 8a, 8b is susceptible to, leakage magnetic flux can be reduced and account for magnet
The ratio for producing magnetic flux overall.
Therefore, in the structure of Fig. 5, the confining force magnet high such as rare earth element magnet are used by permanent magnet 3, thus, it is possible to
Enough leakage magnetic fluxs for further reducing permanent magnet 3, therefore, it is possible to realize that torque raising/efficiency is improved, while being able to ensure that rotor
Mechanical strength, in addition, can realize that assembling operation becomes being greatly lowered of manufacturing cost, the centrifugation of rivet for easily being brought
Power load is reduced and the material cost of rivet is reduced.
(embodiment 3)
Hereinafter, the third embodiment of the present invention is illustrated using Fig. 6.Fig. 6 A are using vertical with rotary shaft cross-sectional
Face shows the partial sectional view of the rotor of the permanent magnet motor of the third embodiment of the present invention.Fig. 6 B are utilized along rotary shaft
Vertical section show the third embodiment of the present invention permanent magnet motor rotor partial sectional view.Due to the structure of Fig. 6 A
Structure with Fig. 3 A is identical, therefore the description thereof will be omitted.
The structure of Fig. 6 B be with the difference of the structure of Fig. 3 B connect in the axial direction it is multigroup by axially three section A,
One group of component that B, C are constituted.Here, showing three groups of modular constructions.The structure of component 1 is identical with the structure of Fig. 3 B, from positive z-axis
Direction is constituted towards negative z-axis direction with the order of section A, B, C.On the other hand, component 2 is negative from positive z-axis direction direction
Z-axis direction constituted with the order of section C, B, A, in addition, permanent magnet 3Z2 by positive z-axis direction in the way of N poles by magnetic
Change.According to said structure, because the magnetic flux that permanent magnet 3Z1 is produced is mutually opposing with the magnetic flux that permanent magnet 3Z2 is produced, therefore
Will not be in the short circuit path that is internally formed of rotor 1, but as the useful flux penetrated through gap and to stator side.Component 3
Similarly constituted with the order of section A, B, C towards negative z-axis direction from positive z-axis direction, and permanent magnet 3Z3 is with negative
Z-axis direction turn into N poles mode be magnetized.According to said structure, the magnetic flux that permanent magnet 3Z3 is produced will not be in rotor 1
It is internally formed short circuit path, but as through gap and being penetrated into the useful flux of stator side.By in this way using many
The structure of group component, by increasing capacitance it is possible to increase the number of permanent magnet 3Z, therefore in the size constrained because of rotor diameter, the restriction of a magnetic
And in the case of cannot diametrically extending spoke shape magnet, it is also possible to realize the increase of magnetic flux.Further, since component 2 is adopted
With making component 1 invert the structure after 180 ° in the z-axis direction, the structure of component 3 is identical with the structure of component 1, though therefore be
Combination multi-grade module, but every group of manufacturing process of component need not be changed, only manufacture component 1.Therefore, do not detract from making
Industry, and the rising of manufacturing cost will not be caused, the increase and torque raising/efficiency that can realize magnetic flux are improved.
It should be noted that in fig. 6b, make the axial length of section A, B, C roughly the same, but be not necessarily required in this way,
In the case where wanting to increase the magnetic flux produced by permanent magnet 3Z, can be using the direction of magnetization thickness for increasing the magnet simultaneously
Increase unit permeance, i.e., make the axial length of the section B structure more long than section A or C, conversely, it would however also be possible to employ make section B
The axial length structure shorter than section A or C, material cost reduction is realized by reducing the magnet amount of permanent magnet 3Z.
Alternatively, it is also possible to reduce the axial length of each component, increase the group number of component.Due to the section C and the section C of component 2 of component 1
Using identical structure, therefore can also be using the structure of the axial length for omitting one of which or reduction one of which.It is right
It is also identical in the section A of component 2 and the section A of component 3.
Additionally, the present embodiment can also apply to the structure shown in embodiment 2.Especially protected using rare earth element magnet etc.
In the case that holding force magnet high constitutes spoke shape permanent magnet 3, permanent magnet 3Z is low using confining forces such as ferrite lattices
Magnet, it is also possible to be made up of multi-grade module.According to said structure, increase and the torque raising/efficiency of magnetic flux can be realized
Improve, while the usage amount of rare-earth-type material can be reduced, material cost can be reduced and risk is raised.But, from ensuring
From the viewpoint of demagnetization endurance, for example, there is the difference of three times with the confining force of ferrite lattice in neodium magnet, therefore in view of this
On the basis of problem, the direction of magnetization thickness and confining force of permanent magnet 3 and permanent magnet 3Z are preferably chosen to be appropriate value,
To reduce the difference of permanent magnet 3 and the magnetic resistance of permanent magnet 3Z.
(embodiment 4)
Hereinafter, the fourth embodiment of the present invention is illustrated using Fig. 7.Fig. 7 is three-dimensionally to show the of the invention 4th
The figure of circumferential 1/4 part of the permanent magnet motor of embodiment, stator and rotor.
The structure of the present embodiment is with the difference of the structure of Fig. 1, be geomagnetic into the S pole piece material 2S of S poles side with
It is geomagnetic between the N pole piece materials 2N of N poles side and is configured with Exciting Windings for Transverse Differential Protection 104, DC current is supplied to the Exciting Windings for Transverse Differential Protection, so that N
Pole piece material side turns into N poles and S pole piece materials side is turned into S poles.Using in the case of said structure, be obtained in that with embodiment 1,
Embodiment 2 or the identical effect of embodiment 3.In addition, the present embodiment is remembered with embodiment 1, embodiment 2 or embodiment 3
The textural association of load is also obtained in that identical effect.
It should be noted that in order to draw Exciting Windings for Transverse Differential Protection 104 to the outside of rotor, axis body 6 only inserts into rotor core 2
Z-axis direction central portion.But, if to keep enough fastening strengths to rotor core 2, it would however also be possible to employ core inner circumferential links
The structure that the part in the z-axis direction of portion 101S is contacted with axis body 6.By using said structure, the Machinery Ministries such as collector ring are not used
Part just can supply DC current to Exciting Windings for Transverse Differential Protection 104, therefore in addition to product reliability is improved, also have nothing for user
The advantage that need to be repaired.Further, since axis body 6 is only contacted with the S pole piece materials 2S for being geomagnetic into S poles side, therefore, permanent magnet 3, forever
The magnetic flux that long magnet 3Z is produced will not be formed as short circuit path.Therefore, axis body 6 can use general iron material, can reduce material
Material cost.
On the other hand, the present embodiment is being applied to constitute the structure of axis body 6 using nonmagnetic substance as shown in Figure 1
On the basis of, additionally it is possible to it is applied to insert overall structure in the z-axis direction.In this case, can be by using collector ring etc.
DC current is supplied to Exciting Windings for Transverse Differential Protection 104.In the case of using said structure, it is also possible to obtain and embodiment 1, embodiment 2
Or the identical effect of embodiment 3.In addition, by the present embodiment and the composition described in embodiment 1, embodiment 2 or embodiment 3
Combination is also obtained in that identical effect.
(embodiment 5)
Hereinafter, the fifth embodiment of the present invention is illustrated using Fig. 8.Fig. 8 is the section of the compressor of the present embodiment
Structure chart.
In fig. 8, compression mechanical part is rolled up by the swirling for making to be built up in vertically on the end plate 14 of fixed eddy plate component 13
Plate 15 is engaged and formed with the swirling roll bending 18 being built up in vertically on the end plate 17 of swirling scroll component 16.Also, by profit
Making swirling scroll component 16 with bent axle 6 carries out circumnutation to be compressed action.Using fixed eddy plate component 13 and convolution
It is in the discharge chambe 19 (19a, 19b ...) that scroll member 16 is formed, positioned at outermost footpath side discharge chambe 19 along with convolution
Move and moved towards two centers of scroll members 13,16, volume is gradually reduced.
When two discharge chambes 19a, 19b reach the immediate vicinity of two scroll members 13,16, in two discharge chambes 19
Compressed gas are discharged from the outlet 20 connected with discharge chambe 19.Compressed gas after discharge are disposed through fixed eddy plate component
13 and framework 21 gas passage (not shown) and reach in the pressure vessel 22 of the bottom of framework 21, from being arranged at pressure vessel
The discharge pipe 23 of 22 side wall is discharged to outside compressor.Load the magneto being made up of stator 9 and rotor 1 in pressure vessel 22
Motor 103, rotor 1 rotates and is compressed action.The bottom of permanent-magnet motor 103 is provided with store oil portion 25.Store oil portion 25
Interior oil passes through the oilhole 26 being arranged in bent axle 6 using the pressure differential produced by rotary motion, for swirling scroll component
16 with the lubrication of sliding part, the sliding bearing 27 of bent axle 6 etc..It is provided with for by stator coil 12 in the side wall of pressure vessel 22
Be drawn out to the terminal box 30 in the outside of pressure vessel 22, for example, in the case of three-phase permanent magnet motor, accommodate altogether three U,
The terminal of each winding of V, W.By applying foregoing embodiment 1, embodiment 2, embodiment 3 or real in permanent-magnet motor 103
The permanent magnet motor described in example 4 is applied, can realize that torque raising and efficiency are improved.
However, it is present it is home-use, commercially with air conditioner, R410A refrigeration is sealed with compression container 22 mostly
Agent, the environment temperature of permanent-magnet motor 103 is most more than 80 DEG C.In view of gradually adopting global warming latent energy value smaller later
R32 refrigerants, by using compressor compresses refrigerant and make refrigerant circulation and in the case of constituting kind of refrigeration cycle, can
Global warming latent energy value is reduced by the R32 refrigerants enclosed more than 70 weight % in the kind of refrigeration cycle.
But, in the case of the R32 refrigerants being sealed with more than 70 weight %, for R410A refrigerants, due to circulation
Environment temperature rises, therefore relict flux density (Br) reduction of magnet is more notable.In this case, it is preceding by application
The permanent magnet motor described in embodiment 1, embodiment 2, embodiment 3 or embodiment 4 stated, can compensate for Br reductions and is led
The torque reduction of cause, efficiency reduction.Especially in the case where permanent magnet 3, permanent magnet 3Z is made up of ferrite lattice, by
Demagnetized in the problem making high temperature because of neodium magnet will not occur from principle, therefore for being sent out with using R32 refrigerants
It is effective countermeasure that raw environment temperature rises.It should be noted that by foregoing embodiment 1, embodiment 2, embodiment 3 or
When permanent magnet motor described in person's embodiment 4 is applied to the compressor of the present embodiment, the species of refrigerant is unrestricted.
It should be noted that compressor arrangement both can be using the scroll compressor described in Fig. 8, it would however also be possible to employ return
Rotary compressor, it would however also be possible to employ the structure with other compression mechanisms.In addition, according to the present invention, as mentioned above, can
Realize the motor of small shape and height output.Thus, it is possible to expand the operating range that can carry out running at high speed etc., additionally, with R22,
The refrigerants such as R407C, R410A are compared, and the refrigerant such as He, R32 is big from the leakage rate of slot leakage, especially in low-speed running
When, leakage rate is significantly increased relative to the ratio between internal circulating load, therefore the reduction of efficiency is larger.In order to improve low circulation amount, (low speed is transported
Turn) when efficiency, make compression mechanical part minimize can be effective means, in order to obtain identical internal circulating load, by improve
Rotating speed come to reduce leakage loss can be effective means, but in order to ensure largest loop amount, in addition it is also necessary to improve maximum (top) speed.Root
According to the compressor for possessing permanent magnet motor of the invention, torque capacity can be increased, therefore, it is possible to improve maximum (top) speed, for
It is effective means that the efficiency of the refrigerants such as He, R32 is improved.
Claims (8)
1. a kind of permanent magnet motor, it possesses：Stator, it has multiple teeth；And rotor, its diametrically with the stator every
Standard width of a room in an old-style house unoccupied place configures,
The permanent magnet motor is characterised by,
The rotor is by the S pole pieces material that is geomagnetic into S poles side and the N pole pieces material for being geomagnetic into N poles side group in the axial direction each other
Close and constitute,
The S pole pieces material is formed with the multiple Ss raised to outer circumferential linked in the circumferential using S side core material inner circumferential linking parts
Side convex portion, and the N pole pieces material be formed with using N side core material inner circumferential linking parts link in the circumferential multiple to outer circumferential
Raised N sides convex portion, by combining the S pole pieces material and the N pole pieces material, the S sides convex portion of the S pole pieces material with it is described
The N sides convex portion of N pole piece materials is configured in mode different each other,
Between the S sides convex portion and N sides convex portion configured in mode different each other, with S sides projection turn into S poles and
The mode that N sides projection turns into N poles is configured with convex portion permanent magnet,
Between the S side cores material inner circumferential linking part of the S pole pieces material and the N sides convex portion of the N pole pieces material, Yi Jisuo
State between the N side cores material inner circumferential linking part of N pole piece materials and the S sides convex portion of the S pole pieces material, exist in the first core
All holes and with the continuous second core inner circumferential hole in the first core inner circumferential hole,
The slit being made up of nonmagnetic material is configured with S sides convex portion with N sides convex portion,
The slit is formed as more long on the direction for crossing normal axis magnetic flux, and shorter on the direction for crossing magnet magnetic flux
Shape.
2. permanent magnet motor according to claim 1, it is characterised in that
Between the S pole pieces material and the N pole pieces material, in the way of N pole piece materials side turns into N poles and S pole piece materials side turns into S poles
It is configured with other core permanent magnets different relative to the convex portion permanent magnet.
3. permanent magnet motor according to claim 2, it is characterised in that
The rotor is overlapped and constituted in the axial direction by multigroup rotor assembly, and the rotor assembly is by combining S poles described in a group
Core and the N pole pieces material and constitute,
It is in the plurality of rotor assembly, from the end on observation of side when be configured at n-th rotor assembly so that (n-1)th rotor
Component inverts the configuration of the structure after 180 ° in the axial direction, wherein, n is more than 2 integer.
4. permanent magnet motor according to claim 2, it is characterised in that
The core permanent magnet is made up of the confining force permanent magnet lower than the convex portion permanent magnet.
5. permanent magnet motor according to claim 1 and 2, it is characterised in that
The rotor is configured with Exciting Windings for Transverse Differential Protection between the S pole pieces material and the N pole pieces material, and direct current is supplied to the Exciting Windings for Transverse Differential Protection
Electric current, to cause that N pole piece materials side turns into N poles, and S pole piece materials side turns into S poles.
6. permanent magnet motor according to claim 1 and 2, it is characterised in that
Match somebody with somebody on outer radial periphery side end and both radially inner circumference side ends or any one of the convex portion permanent magnet
Rib is put, the rib mechanically links the S sides convex portion and N sides convex portion that are abutted with the convex portion permanent magnet.
7. a kind of compressor, it possesses：Compression mechanical part, it sucks refrigerant and is discharged after being compressed to the refrigerant；With
And permanent-magnet motor, it is used to drive the compression mechanical part,
The compressor is characterised by,
The permanent-magnet motor is the permanent magnet motor described in claim 1 or 2.
8. a kind of refrigerating circulatory device, it applies the compressor described in claim 7,
The refrigerating circulatory device is characterised by,
R32 refrigerants more than 70 weight % are sealed with to the kind of refrigeration cycle formed by the refrigerating circulatory device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-170050 | 2013-08-20 | ||
| JP2013170050A JP6081315B2 (en) | 2013-08-20 | 2013-08-20 | Permanent magnet type electric motor, compressor using the same, and refrigeration cycle apparatus |
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| Publication Number | Publication Date |
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| CN104426266A CN104426266A (en) | 2015-03-18 |
| CN104426266B true CN104426266B (en) | 2017-06-30 |
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| CN107204730A (en) * | 2016-03-18 | 2017-09-26 | 日立江森自控空调有限公司 | Control device of electric motor, air conditioner, compressor and refrigerating circulatory device |
| CA3020656A1 (en) * | 2016-04-13 | 2017-11-23 | James Brent Klassen | Electric machine comprising axial thrust bearings |
| JP6870989B2 (en) * | 2017-01-04 | 2021-05-12 | 株式会社ミツバ | Rotor and electric motor |
| JP2018121431A (en) * | 2017-01-25 | 2018-08-02 | 株式会社デンソー | Rotor of rotary electric machine and rotary electric machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007330025A (en) * | 2006-06-07 | 2007-12-20 | Daikin Ind Ltd | Motor |
| CN101978578A (en) * | 2008-03-19 | 2011-02-16 | 霍加纳斯股份有限公司 | Integrated rotor pole pieces |
| CN101997369A (en) * | 2009-08-07 | 2011-03-30 | 日立空调·家用电器株式会社 | Self-starting permanent magnet synchronous motor and compressor and refrigeration cycle using the same |
| CN102678554A (en) * | 2011-03-10 | 2012-09-19 | 三菱电机株式会社 | Rotary compressor |
| CN103095004A (en) * | 2011-10-31 | 2013-05-08 | 阿斯莫有限公司 | Rotor And Motor |
| CN103095012A (en) * | 2011-10-31 | 2013-05-08 | 阿斯莫有限公司 | Rotor and motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3224890B2 (en) * | 1993-02-15 | 2001-11-05 | ファナック株式会社 | Synchronous motor rotor |
| JP3956589B2 (en) * | 1999-10-18 | 2007-08-08 | ダイキン工業株式会社 | Refrigeration equipment |
| JP2010068600A (en) * | 2008-09-09 | 2010-03-25 | Mitsubishi Electric Corp | Permanent magnet motor and hermetic compressor |
| JP5427576B2 (en) * | 2009-12-04 | 2014-02-26 | 日立オートモティブシステムズ株式会社 | Rotating electric machine for vehicles |
| JP2013099096A (en) * | 2011-10-31 | 2013-05-20 | Asmo Co Ltd | Rotor and motor |
| JP5996270B2 (en) * | 2011-11-10 | 2016-09-21 | アスモ株式会社 | Rotor manufacturing method and motor manufacturing method |
-
2013
- 2013-08-20 JP JP2013170050A patent/JP6081315B2/en active Active
-
2014
- 2014-08-04 CN CN201410379818.9A patent/CN104426266B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007330025A (en) * | 2006-06-07 | 2007-12-20 | Daikin Ind Ltd | Motor |
| CN101978578A (en) * | 2008-03-19 | 2011-02-16 | 霍加纳斯股份有限公司 | Integrated rotor pole pieces |
| CN101997369A (en) * | 2009-08-07 | 2011-03-30 | 日立空调·家用电器株式会社 | Self-starting permanent magnet synchronous motor and compressor and refrigeration cycle using the same |
| CN102678554A (en) * | 2011-03-10 | 2012-09-19 | 三菱电机株式会社 | Rotary compressor |
| CN103095004A (en) * | 2011-10-31 | 2013-05-08 | 阿斯莫有限公司 | Rotor And Motor |
| CN103095012A (en) * | 2011-10-31 | 2013-05-08 | 阿斯莫有限公司 | Rotor and motor |
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| JP6081315B2 (en) | 2017-02-15 |
| CN104426266A (en) | 2015-03-18 |
| JP2015042009A (en) | 2015-03-02 |
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Effective date of registration: 20160825 Address after: Hongkong aoteng Plaza No. 8 Chinese Kowloon Linze street 12 floor Applicant after: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. Address before: Tokyo, Japan Applicant before: Hitachi Appliances Inc. |
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Effective date of registration: 20180704 Address after: Tokyo, Japan, Japan Patentee after: Hitachi Johnson Controls Air Conditioning Co., Ltd. Address before: Hongkong aoteng Plaza No. 8 Chinese Kowloon Linze street 12 floor Patentee before: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. |
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