CN203456960U - Motor rotor, permanent magnetic rotating motor and compressor with the same - Google Patents
Motor rotor, permanent magnetic rotating motor and compressor with the same Download PDFInfo
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- CN203456960U CN203456960U CN201320517166.1U CN201320517166U CN203456960U CN 203456960 U CN203456960 U CN 203456960U CN 201320517166 U CN201320517166 U CN 201320517166U CN 203456960 U CN203456960 U CN 203456960U
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Abstract
The utility model discloses a motor rotor, a permanent magnetic rotating motor and a compressor with the same. The motor rotor comprises a rotor core and a plurality of permanent magnet sets. The rotor core is provided with a plurality of insertion hole sets which are separately arranged in the circumferential direction of the rotor core. Each insertion hole set comprises (2N+1) insertion holes which respectively extend along the vertical direction and are separately arranged in the circumferential direction of the rotor core. The plurality of insertion hole sets are respectively arranged adjacently to the outer circumference of the rotor core. The plurality of permanent magnet sets are respectively matched with the plurality of insertion hole sets. Each permanent magnet set comprises (2N+1) permanent magnets which are respectively inserted into the (2N+1) insertion holes, wherein N is a positive integer which is larger than or equal with 1. The motor rotor provided by the utility model has the following functions: improving efficiency of the permanent magnetic rotating motor, simultaneously reducing eddy current which flows over each permanent magnet set, and reducing loss caused by the eddy current.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of rotor, permanent magnet type electric rotary machine and has its compressor.
Background technology
In rotor core inside, imbed in the rotor of built-in permanent-magnet of ferrite or terres rares, when permanent magnet being located near rotor diameter side, the torque producing during logical same electric current will improve, contribute to realize the high efficiency of permanent-magnetic electric machine, but then, the situation that exists the loss of permanent magnet vortex flow and core loss to increase, especially, when permanent-magnetic electric machine is in High Rotation Speed region, this phenomenon is particularly serious.Be unfavorable for realizing in permanent-magnetic electric machine wide region from low speed to high speed and all there is high efficiency and low torque ripple.
In addition, motor is when High Rotation Speed, and conventional built-in rotor structure exists following shortcoming and is unfavorable for the raising of the maximum safe operation rotating speed of permanent-magnetic electric machine." one " font built-in rotor commonly used of take is example.Main manifestations is: 1) every permanent magnet under is extremely one section, and the restriction of permanent magnet size makes permanent magnetic baried in the position away from from rotor core external diameter, is unfavorable for producing more unitary current moment.2), during motor High Rotation Speed, because the arm of force of rotor centrifugal force distributed load is very long, large moment of flexure causes the large deformation every the stress at magnetic bridge place and place, the adjacent centre position every magnetic bridge, and stress increases sharply with motor speed increase with deformation.Limited to a great extent the maximum safe operation rotating speed of motor.3) air gap flux density sine is poor, and harmonic content is higher, affects the performance index such as motor torque ripple, vibration noise, efficiency, and this situation has adopted in the electric rotating machine of concentrated winding wire type winding particularly serious at stator.At present, concentrate winding wire type winding in permanent magnet type electric rotary machine has especially been used the compressor of this electric rotating machine, to use in a large number.
Utility model content
The utility model is intended at least solve one of technical problem existing in prior art.
For this reason, an object of the present utility model is to propose a kind of rotor that can improve the efficiency of permanent magnet type electric rotary machine.
Another object of the present utility model is to propose a kind of permanent magnet type electric rotary machine with above-mentioned rotor.
Another object of the present utility model is to propose a kind of compressor with above-mentioned permanent magnet type electric rotary machine.
According to rotor of the present utility model, comprise: rotor core, described rotor core is provided with many groups around the patchhole group circumferential spaced apart of described rotor core, described in every group, patchhole group comprises 2N+1 patchhole, described 2N+1 patchhole vertically extends respectively and circumferentially spaced apart around described rotor core, and described many group patchhole groups are respectively adjacent to the periphery settings of described rotor core; Many group permanent-magnets group, described many group permanent-magnets group is closed with the assembly of described many group patchholes respectively, described in every group, permanent magnet group comprises 2N+1 permanent magnet, and a described 2N+1 permanent magnet is inserted into respectively in a described 2N+1 patchhole, and N is more than or equal to 1 positive integer.
According to rotor of the present utility model, owing to being provided with a plurality of permanent magnets in every group permanent-magnet group, compare with traditional permanent magnet setting position, permanent magnet of the present utility model can be arranged on the position of the periphery of more close rotor core, the torque producing in the time of can improving thus logical same electric current, and then improved the efficiency of permanent magnet type electric rotary machine, can reduce the vortex flow that flows through every group permanent-magnet group simultaneously, thereby can reduce the loss that this vortex flow causes, can further improve the efficiency of permanent magnet type electric rotary machine.
In addition, according to rotor of the present utility model, also there is following additional technical feature:
In specific embodiment of the utility model, the center line of N+1 permanent magnet and the pole center of described rotor described in every group in permanent magnet group overlap, in every group permanent-magnet group, described in the 1st N permanent magnet to N and every group, in permanent magnet, N individual permanent magnet of N+2 to the 2N+1 is symmetrically distributed in the both sides of described N+1 permanent magnet, and the permanent magnet of the bilateral symmetry position of N+1 permanent magnet is measure-alike.
Further, the thickness of N+1 permanent magnet described in every group in permanent magnet group and the product of width are maximum, described in remaining the size of the thickness of permanent magnet and the product of width and, described permanent magnet and described N+1 permanent magnet between distance be negative correlation.Thereby the air gap harmonic wave surplus that can effectively suppress permanent magnet type electric rotary machine, reduce torque pulsation and the vibration noise of permanent magnet type electric rotary machine, reduce vortex flow loss and the core loss of permanent magnet type electric rotary machine, further improved the electric efficiency of permanent magnet type electric rotary machine.
Particularly, described in every group, in permanent magnet group, the width of i permanent magnet and the product of thickness meet:
W
iH
i＝{cos[(i-1)π/(2N+1)]-[cos(iπ/(2N+1))]}，
Wherein, i=1～2N+1, W
ibe the width of i section permanent magnet, H
ibe the thickness of i section permanent magnet.
Alternatively, described in every group, described in each in permanent magnet group, the cross section of permanent magnet is arc or rectangular shape.
In embodiment more of the present utility model, between two the adjacent described permanent magnets described in every group in permanent magnet group, be provided with two every magnetic bridge, described two are provided with iron core stop part between magnetic bridge.
Alternatively, the width of described iron core stop part is 0.5～1.0mm.
In embodiment more of the present utility model, the periphery wall of described rotor is provided with the recess of a plurality of vertical extensions, described in every adjacent two groups, between patchhole group, is provided with a female portion.
According to permanent magnet type electric rotary machine of the present utility model, comprise the rotor above-mentioned according to the utility model.
According to compressor of the present utility model, comprise the permanent magnet type electric rotary machine above-mentioned according to the utility model.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the schematic diagram of the rotor of the utility model embodiment;
Fig. 2 is according to the schematic diagram of the permanent magnet type electric rotary machine of the utility model embodiment.
Reference numeral:
Permanent type electric rotating machine 200; Rotor 100; Rotor core 1;
Iron core stop part 4; Motor stator 5; Tooth 6; Iron core strutting piece 7;
The 17a of bridge portion, 17b;
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, orientation or the position relationship of the indications such as term " " center ", " on ", D score, 'fornt', 'back', " left side ", " right side " be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure and operation, so can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.In addition,, in description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
Below with reference to Fig. 1 and Fig. 2, describe according to a kind of rotor 100 of the utility model embodiment, this rotor 100 coordinates to be assembled into permanent magnet type electric rotary machine 200 with motor stator 5, and permanent magnet type electric rotary machine 200 can be applicable on compressor.
As shown in Figure 2, the motor stator 5 of permanent magnet type electric rotary machine 200 is cylindric, motor stator 5 comprises: the stator core 8 being formed by a plurality of teeth 6 and iron core strutting piece 7, in the groove 9 between the plurality of tooth 6 to surround reel U phase winding 13a, V phase winding 13b, the W phase winding 13c of armature winding 13(tri-phase windings of the concentrated winding installed of the mode of tooth 6).Thus, in the example of Fig. 2, permanent magnet type electric rotary machine 200 is four utmost points, six grooves, and its slot pitch is counted 120 degree with electric angle.
According to the rotor 100 of the utility model embodiment, as shown in Figure 1, comprise: rotor core 1 and many group permanent-magnets group 2, wherein, rotor core 1 is provided with many groups around the patchhole group 10 circumferential spaced apart of rotor core 1, every group of patchhole group 10 comprises 2N+1 patchhole 11, and 2N+1 patchhole 11 vertically extends respectively and circumferentially spaced apart around rotor core 1, organizes the periphery setting that patchhole group 10 is respectively adjacent to rotor core 1 more.Many group permanent-magnets group 2 coordinates with many groups patchhole group 10 respectively, and every group permanent-magnet group 2 comprises 2N+1 permanent magnet 20, and 2N+1 permanent magnet 20 is inserted into respectively in 2N+1 patchhole 11, and N is more than or equal to 1 positive integer.It should be noted that, 2N+1 permanent magnet 20 in each group permanent-magnet group 2 is respectively same polarity permanent magnet, the group number of permanent magnet group 2 is identical with the number of poles of rotor 100, that is to say that rotor 100 is every has extremely down a plurality of permanent magnets 20, in other words, with respect to traditional rotor, the every permanent magnet under extremely of rotor 100 of the present utility model is divided into 2N+1 section.
In the example of Fig. 1, rotor core 1 is provided with four groups of patchhole groups 10, every group of patchhole group 10 comprises three patchholes 11, three patchholes 11 are respectively adjacent to the periphery setting of rotor core 1, in each patchhole 11, be all inserted with a permanent magnet 20, that is to say that three permanent magnets 20 form a group permanent-magnet group 2.Wherein, each permanent magnet 20 is made by the material of terres rares or ferrite class, and particularly, the cross section of each permanent magnet 20 in every group permanent-magnet group 2 is arc or rectangular shape.
According to the rotor 100 of the utility model embodiment, owing to being provided with a plurality of permanent magnets 20 in every group permanent-magnet group 2, compare with traditional permanent magnet setting position, permanent magnet 20 of the present utility model can be arranged on the position of the periphery of more close rotor core 1, the torque producing in the time of can improving thus logical same electric current, and then improved the efficiency of permanent magnet type electric rotary machine 200, can reduce the vortex flow that flows through every group permanent-magnet group 2 simultaneously, thereby can reduce the loss that this vortex flow causes, can further improve the efficiency of permanent magnet type electric rotary machine 200.
In embodiment more of the present utility model, the center line of N+1 permanent magnet 20 in every group permanent-magnet group 2 overlaps with the pole center of rotor 100, in every group permanent-magnet group 2, in the 1st N permanent magnet 20 to N and every group permanent-magnet 20, N individual permanent magnet 20 of N+2 to the 2N+1 is symmetrically distributed in the both sides of N+1 permanent magnet 20, and the permanent magnet 20 of the bilateral symmetry position of N+1 permanent magnet 20 is measure-alike.Particularly, in clockwise direction, numbering in every group permanent-magnet group 2 is followed successively by 1 ..., N+1 ..., 2N+1, the center line that is numbered the permanent magnet 20 of N+1 overlaps with this pole center, all the other be numbered 1～N and be numbered N+2～2N+1 altogether 2N permanent magnet 20 be symmetrically distributed in permanent magnet 20 both sides that are numbered N+1, the permanent magnet 20 of bilateral symmetry position measure-alike.In the example of Fig. 1, every group permanent-magnet group 2 comprises three permanent magnet 20a, 20b, 20c, permanent magnet 20a, 20b, 20c respectively reference numeral are 1,2,3 permanent magnet 20, the center line of permanent magnet 20b overlaps with pole center, permanent magnet 20a and permanent magnet 20c are symmetrically distributed in the both sides of permanent magnet 20b, and permanent magnet 20a and permanent magnet 20c's is measure-alike.
Further, the thickness of N+1 permanent magnet 20 in every group permanent-magnet group 2 and the product of width are maximum, the size of the thickness of remaining permanent magnet 20 and the product of width with, distance between above-mentioned permanent magnet 20 and N+1 permanent magnet 20 is negative correlation, that is to say, the distance of N+1 permanent magnet 20 of remaining permanent magnet 20 distance is far away, the thickness of this permanent magnet 20 and the product of width are less, that is to say, in N the permanent magnet 20 of the 1st to N, the numbering of permanent magnet 20 is less, the distance that shows N+1 permanent magnet 20 of these permanent magnet 20 distances is far away, in N the permanent magnet 20 of the 1st to N, number the less thickness of permanent magnet 20 and the product of width less.In N the permanent magnet 20 of N+2 to the 2N+1, number the larger thickness of permanent magnet 20 and the product of width less.Thereby the air gap harmonic wave surplus that can effectively suppress permanent magnet type electric rotary machine 200, reduce torque pulsation and the vibration noise of permanent magnet type electric rotary machine 200, reduce vortex flow loss and the core loss of permanent magnet type electric rotary machine 200, further improved the electric efficiency of permanent magnet type electric rotary machine 200.
More specifically, the width of permanent magnet 20 and the product of thickness form according to the principle modulation of air gap flux density waveform Sine distribution, and the concrete determining step of the width of permanent magnet 20 and the product of thickness is:
With 2N+1 section staircase waveform, approach the close distribution of sinusoidal wave magnetic, the sinusoidal air-gap field wave function expression formula that each extremely lower expectation is approached is B=B
1sin θ is divided into 2N+1 part (positive integer that N is>=1), and the not wide rectangle magnetic-field component waveform that is B2 by 2N+1 amplitude replaces the sinusoidal air-gap field waveform of expectation, and the mid point of square wave and the mid point of corresponding sinusoidal wave partitioning portion overlap, and make the area of every section of square wave and corresponding sinusoidal wave partitioning portion suitable
Wherein i represents the numbering of each section of permanent magnet 20, i=1～2N+1, W
ibe the width of i section permanent magnet 20, H
ibe the thickness of i section permanent magnet 20, make α=B
1/ B
2, the width and the thickness that obtain i section permanent magnet 20 meet (1) formula:
W
iH
i＝α{cos[(i-1)π/(2N+1)]-[cos(iπ/(2N+1))]} （1）
Because α is constant, according to (1) formula, the every width of permanent magnet 20 and product ratio of thickness under extremely meets:
W
iH
i＝{cos[(i-1)π/(2N+1)]-[cos(iπ/(2N+1))]}。That is to say, in every group permanent-magnet group 2, the width of i permanent magnet 20 and the product of thickness meet:
W
iH
i＝{cos[(i-1)π/(2N+1)]-[cos(iπ/(2N+1))]}。
According to specific embodiment of the utility model, as shown in Figure 1, between two the adjacent permanent magnets 20 in every group permanent-magnet group 2, be provided with two and between magnetic bridge 3, be provided with iron core stop part 4 every 3, two of magnetic bridges.More specifically, the width of iron core stop part 4 is 0.5～1.0mm.In the example of Fig. 1, the two side ends mask of permanent magnet 20b has symmetrical every magnetic magnetic bridge 3b, 3c, every magnetic magnetic bridge 3b, every magnetic magnetic bridge 3c, be on leading counterclockwise position, and, permanent magnet 20a, 20c in a side end face of next-door neighbour permanent magnet 20b, have successively same size every magnetic magnetic bridge 3a, 3d.At this, the axle extending along the pole center direction of rotor core 13 is d axle, and along separating with respect to pole center direction, to take the axle that between the magnetic pole of electric angle 90 degree, direction is extended be q axle.Therefore by being provided with every magnetic bridge 3, can make especially when High Rotation Speed, to act on the stress dispersion on the 17a of bridge portion, 17b, stress is dispersed on magnetic bridge 3 and the 17a of bridge portion, 17b, the distortion of rotor core 1 in the time of can suppressing High Rotation Speed, and then obviously improve the maximum safe operation rotating speed of permanent magnet type electric rotary machine 200.And, every magnetic bridge 3 and the 17a of bridge portion, 17b, the demagnetization magnetic potential of armature reaction has been played to shunting action, can prevent the demagnetize of permanent magnet 20, lower the demagnetize risk of permanent magnet 20.
In embodiment more of the present utility model, as shown in Figure 1, the periphery wall of rotor is provided with the recess 12 of a plurality of vertical extensions, between every two groups of adjacent patchhole groups 10, is provided with a recess 12.Each recess 12 can prevent magnetic flux short circuit, has reduced the leakage field between each adjacent different magnetic poles, has improved the utilance of 2N+1 permanent magnet 20 in every group permanent-magnet group 2, and then improves the moment producing while being electrified stream, improves electric efficiency.And, the existence of recess 12 make the motor stator 5 of permanent magnet type electric rotary machine 200 and the gap between rotor 100 inhomogeneous, make to a certain extent air-gap field distribute closer to sine wave, can reduce torque pulsation and the vibration noise of permanent magnet type electric rotary machine 200.
According to the rotor 100 of the utility model embodiment, there is following beneficial effect: 1) each permanent magnet group 2 under extremely comprises 2N+1 permanent magnet 20, permanent magnet 20 can be placed on the circumferential position of more close rotor 100, thereby improved the torque having produced while leading to upper same electric current, and then improved the efficiency of permanent-magnetic electric machine.2) permanent magnet after segmentation 20 has reduced the distortion every stress and the adjacent iron core stop part 4 every 3 of magnetic bridges at magnetic bridge 3 places, has increased mechanical strength and the rigidity of rotor 100, and the maximum safe operation rotating speed of permanent magnet type electric rotary machine 200 is obviously improved.3) shunting action of the demagnetization magnetic potential every 3 pairs of armature reactions of magnetic bridge of 20 of each permanent magnets after segmentation can prevent the demagnetize of permanent magnet 20, reduces the risk of permanent magnet 20 irreversible demagnetizes.4) size of each a plurality of permanent magnet 20 under is extremely modulated and is made air gap flux density approach sinusoidal wave distribution according to certain rule, effectively suppress harmonic component, reduce permanent magnet type electric rotary machine 200 torque pulsations and vibration noise, reduce permanent magnet 20 vortex flow loss and core losss, further improved electric efficiency.
According to the permanent magnet type electric rotary machine 200 of the utility model embodiment, comprise according to the utility model above-described embodiment rotor 100.According to the permanent magnet type electric rotary machine 200 of the utility model embodiment, when low speed, can improve the moment producing while passing into same electric current, reduce permanent magnet 20 vortex flow loss and core losss, and can prevent the demagnetize of permanent magnet 20, reduce permanent magnet 20 demagnetize risks.In addition,, when high-speed cruising, can improve the moment producing while passing into same electric current, reduce permanent magnet 20 vortex flow loss and core losss, and can prevent the demagnetize of permanent magnet 20, and the centrifugal force in the time of can making because of High Rotation Speed acts on the stress dispersion in bridge portion.; according to permanent magnet type electric rotary machine 200 of the present utility model; can in the wide scope in region from low speed to high speed, realize the raising of high efficiency He its highest safe operation rotating speed of motor; and can prevent the demagnetize of permanent magnet 20 and can reduce the torque pulsation of motor and the permanent magnet type electric rotary machine of vibration noise 200; in other words, permanent magnet type electric rotary machine 200 of the present utility model has high efficiency, low torque ripple and high performance advantage.
According to the compressor of the utility model embodiment, comprise the permanent magnet type electric rotary machine 200 according to the utility model above-described embodiment.According to other formations of the compressor of the utility model embodiment and operation, be all known for those of ordinary skills, be not described in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a rotor, is characterized in that, comprising:
Rotor core, described rotor core is provided with many groups around the patchhole group circumferential spaced apart of described rotor core, described in every group, patchhole group comprises 2N+1 patchhole, described 2N+1 patchhole vertically extends respectively and circumferentially spaced apart around described rotor core, and described many group patchhole groups are respectively adjacent to the periphery settings of described rotor core;
Many group permanent-magnets group, described many group permanent-magnets group is closed with the assembly of described many group patchholes respectively, described in every group, permanent magnet group comprises 2N+1 permanent magnet, and a described 2N+1 permanent magnet is inserted into respectively in a described 2N+1 patchhole, and N is more than or equal to 1 positive integer.
2. rotor according to claim 1, it is characterized in that, the center line of N+1 permanent magnet and the pole center of described rotor described in every group in permanent magnet group overlap, in every group permanent-magnet group, described in the 1st N permanent magnet to N and every group, in permanent magnet, N individual permanent magnet of N+2 to the 2N+1 is symmetrically distributed in the both sides of described N+1 permanent magnet, and the permanent magnet of the bilateral symmetry position of N+1 permanent magnet is measure-alike.
3. rotor according to claim 1, it is characterized in that, the thickness of N+1 permanent magnet described in every group in permanent magnet group and the product of width are maximum, described in remaining the size of the thickness of permanent magnet and the product of width and, described permanent magnet and described N+1 permanent magnet between distance be negative correlation.
4. rotor according to claim 1, is characterized in that, described in every group, in permanent magnet group, the width of i permanent magnet and the product of thickness meet:
W
iH
i＝{cos[(i-1)π/(2N+1)]-[cos(iπ/(2N+1))]}，
Wherein, i=1～2N+1, W
ibe the width of i section permanent magnet, H
ibe the thickness of i section permanent magnet.
5. rotor according to claim 1, is characterized in that, the cross section of permanent magnet is arc or rectangular shape described in each described in every group in permanent magnet group.
6. rotor according to claim 1, is characterized in that, between two the adjacent described permanent magnets described in every group in permanent magnet group, is provided with two every magnetic bridge, and described two are provided with iron core stop part between magnetic bridge.
7. rotor according to claim 6, is characterized in that, the width of described iron core stop part is 0.5～1.0mm.
8. rotor according to claim 1, is characterized in that, the periphery wall of described rotor is provided with the recess of a plurality of vertical extensions, described in every adjacent two groups, between patchhole group, is provided with a female portion.
9. a permanent magnet type electric rotary machine, is characterized in that, comprises according to the rotor described in any one in claim 1-8.
10. a compressor, is characterized in that, comprises permanent magnet type electric rotary machine according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517166.1U CN203456960U (en) | 2013-08-22 | 2013-08-22 | Motor rotor, permanent magnetic rotating motor and compressor with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517166.1U CN203456960U (en) | 2013-08-22 | 2013-08-22 | Motor rotor, permanent magnetic rotating motor and compressor with the same |
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| Publication Number | Publication Date |
|---|---|
| CN203456960U true CN203456960U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517166.1U Expired - Fee Related CN203456960U (en) | 2013-08-22 | 2013-08-22 | Motor rotor, permanent magnetic rotating motor and compressor with the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453501A (en) * | 2017-08-31 | 2017-12-08 | 广东美芝制冷设备有限公司 | Rotor punching, rotor core, rotor, magneto and compressor |
| CN109149820A (en) * | 2018-11-07 | 2019-01-04 | 珠海格力电器股份有限公司 | Magneto and rotor |
-
2013
- 2013-08-22 CN CN201320517166.1U patent/CN203456960U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453501A (en) * | 2017-08-31 | 2017-12-08 | 广东美芝制冷设备有限公司 | Rotor punching, rotor core, rotor, magneto and compressor |
| CN109149820A (en) * | 2018-11-07 | 2019-01-04 | 珠海格力电器股份有限公司 | Magneto and rotor |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20200822 |
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