CN105515225A - Permanent magnet, permanent magnet motor and compressor - Google Patents

Permanent magnet, permanent magnet motor and compressor Download PDF

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Publication number
CN105515225A
CN105515225A CN201610071166.1A CN201610071166A CN105515225A CN 105515225 A CN105515225 A CN 105515225A CN 201610071166 A CN201610071166 A CN 201610071166A CN 105515225 A CN105515225 A CN 105515225A
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CN
China
Prior art keywords
permanent magnet
described body
lug boss
length
width
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610071166.1A
Other languages
Chinese (zh)
Inventor
毛临书
乔正忠
于明湖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Midea Toshiba Compressor Corp
Guangdong Meizhi Compressor Co Ltd
Anhui Meizhi Precision Manufacturing Co Ltd
Original Assignee
Guangdong Meizhi Compressor Co Ltd
Anhui Meizhi Precision Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Meizhi Compressor Co Ltd, Anhui Meizhi Precision Manufacturing Co Ltd filed Critical Guangdong Meizhi Compressor Co Ltd
Priority to CN201610071166.1A priority Critical patent/CN105515225A/en
Publication of CN105515225A publication Critical patent/CN105515225A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The invention discloses a permanent magnet, a permanent magnet motor and a compressor. The permanent magnet has the maximum length L1 and the maximum width W1. The working area of the permanent magnet is S, wherein the working area S, the maximum length L1 and the maximum width W1 meet the relational expression that S is smaller than L1*W1. According to the permanent magnet, the performance of the motor can be improved, the material cost can be saved, the rotor assembling difficulty of a rotor will not be increased, and therefore the cost performance of the motor is improved.

Description

Permanent magnet, magneto and compressor
Technical field
The present invention relates to art of refrigeration units, particularly a kind of permanent magnet, magneto and compressor.
Background technology
Compressor industry, the stator of magneto, rotor and permanent magnet are generally equally arranged by axial length.Owing to there is the end effects such as brow leakage, the magnetic flux utilance of motor end is low, thus the cost performance of motor is low.As one of solution, permanent magnet axial length is set to be less than rotor core axial length, end magnetic flux utilance can be promoted to a certain extent, the cost performance of lifting motor.But this kind of technology can bring the manufacturing issues such as rotor assembling is complicated, manufacture efficiency is low.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is to propose a kind of permanent magnet for motor, and this permanent magnet can improve motor performance, saves material cost, and can not increase the difficulty of the rotor assembling of rotor, thus improve the cost performance of motor.
Another object of the present invention is to propose a kind of magneto with above-mentioned permanent magnet.
Another object of the present invention is to propose a kind of compressor with above-mentioned magneto.
According to the permanent magnet for motor of the present invention, described permanent magnet has maximum length L1 and Breadth Maximum W1, the work area of described permanent magnet is S, wherein, described work area S, described maximum length L1 and described Breadth Maximum W1 meet following relational expression: S < L1 × W1.
According to the permanent magnet for motor of the present invention, its work area is less than the product of its maximum length and Breadth Maximum, and then can improve motor performance, saves material cost, and can not increase the difficulty of the rotor assembling of rotor, thus improve the cost performance of motor.
In addition, following additional technical characteristic can also be had according to the permanent magnet for motor of the present invention:
According to one embodiment of present invention, 0.5 × L1 × W1 < S < L1 × W1.
According to one embodiment of present invention, described permanent magnet has body and the lug boss of rectangle.
According to one embodiment of present invention, described lug boss is two trapezium structures and is placed in the two ends in the longitudinal direction of described body respectively.
According to one embodiment of present invention, the length of described body is l1, the width of described body is w1, the upper base length of described lug boss is w2, distance between the upper base of two described lug bosses is l2, and meet following relational expression: 1 < l2/l1 < 4,1 < w1/w2 < 4.
According to one embodiment of present invention, described lug boss is four rectangular configuration, wherein two lug bosses are placed in one end in the longitudinal direction of described body, two other lug boss is placed in the described body other end in the longitudinal direction, and each lug boss limit is concordant with the long limit of corresponding described body.
According to one embodiment of present invention, the length of described body is l1, the width of described body is w1, the ultimate range of the described lug boss of two homonymies on the length direction of described body is l2, the minimum range of the described lug boss of two homonymies on the Width of described body is w2, and meet following relational expression: 1 < l2/l1 < 3,0 < w2/w1 < 0.8.
According to one embodiment of present invention, described lug boss is four rectangular configuration, wherein two are placed in one end in the direction of the width of described body, two other is placed in the described body other end in the direction of the width, and each lug boss limit is concordant with the minor face of corresponding described body.
According to one embodiment of present invention, the length of described body is l1, the width of described body is w1, the minimum range of two described lug bosses on the length direction of described body is l2, the ultimate range of two described lug bosses on the Width of described body is w2, and meet following relational expression: 1 < l1/l2 < 5,1 < w2/w1 < 4.
According to one embodiment of present invention, described permanent magnet has the body of rectangle and the disappearance portion be located on described body.
According to one embodiment of present invention, described disappearance portion is circular.
Magneto according to the present invention comprises above-mentioned permanent magnet, and because magneto according to the present invention is provided with above-mentioned permanent magnet, therefore the end magnetic flux utilance of this magneto is high, and its cost performance have also been obtained lifting.
Compressor according to the present invention comprises above-mentioned magneto, and because compressor according to the present invention is provided with above-mentioned magneto, therefore the operating efficiency of this compressor is improved at least to a certain extent.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of permanent magnet according to an embodiment of the invention;
Fig. 2 is the schematic diagram of permanent magnet in accordance with another embodiment of the present invention;
Fig. 3 is the schematic diagram of the permanent magnet according to another embodiment of the present invention;
Fig. 4 is the schematic diagram of the permanent magnet according to another embodiment of the present invention;
Fig. 5 is the schematic diagram of the permanent magnet according to another embodiment of the present invention;
Fig. 6 is the schematic diagram of the magneto according to the embodiment of the present invention;
Fig. 7 is the schematic diagram of the compressor according to the embodiment of the present invention.
Reference numeral: permanent magnet 100, body 110, lug boss 120, magneto 200, compressor 300.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Permanent magnet of the prior art is consistent with the length of the stators and rotators of magneto, and because permanent magnet end there will be leakage field end effect, the magnetic flux utilance of motor end is low, thus the cost performance of motor is low.
As the wherein one of solution, the length of permanent magnet can be set to the length of the stators and rotators being less than magneto, can improve the utilance of end magnetic flux to a certain extent, the cost performance of lifting motor, but this technology can be brought rotor assembling complexity, manufacture inefficient problem.
Below in conjunction with Fig. 1 to Fig. 7, the permanent magnet 100 for motor of the embodiment of the present invention is described in detail.
According to the permanent magnet 100 for motor of the embodiment of the present invention, permanent magnet 100 has maximum length L1 and Breadth Maximum W1, the work area of permanent magnet 100 is S, and wherein, work area, maximum length L1 and Breadth Maximum W1 meet following relational expression: S < L1 × W1.
That is, permanent magnet 100 must not be a complete structure, can arrange disappearance portion thereon and cause its area to diminish.
Certainly, it should be noted that, the maximum length of permanent magnet 100 should be unanimous on the whole with the length of the stators and rotators of magneto, and the Breadth Maximum of permanent magnet 100 should be consistent with the Breadth Maximum of existing permanent magnet 100; That is, the maximum length of permanent magnet 100 should be consistent with the length of the permanent magnet in the not disappearance portion applied in magneto of the prior art and width with Breadth Maximum, and the work area of permanent magnet of the prior art is: L1 × W1.
The structure of permanent magnet 100 will be described below in conjunction with specific embodiments in detail.
According to the permanent magnet 100 for motor of the embodiment of the present invention, its work area is less than the product of its maximum length and Breadth Maximum, and then can improve motor performance, saves material cost, and the difficulty of the rotor assembling of rotor can not be increased, thus improve the cost performance of motor.
In some embodiments of the invention, the work area of permanent magnet 100 meets following relational expression further: 0.5 × L1 × W1 < S < L1 × W1.Thus, both can improve the magnetic flux utilance of motor end, can ensure that again permanent magnet 100 has enough intensity, avoid magneto in the course of the work permanent magnet 100 be damaged.
In some embodiments of the invention, as shown in Figures 1 to 4, permanent magnet 100 has body 110 and the lug boss 120 of rectangle.The area of lug boss 120 is much smaller than the area of body 110.When lug boss 120 is rectangle, the long limit of lug boss 120 and minor face are all less than long limit and the minor face of body 110.When lug boss 120 is trapezoidal, the upper base of lug boss 120 all can not be more than or equal to the minor face of body 110 with going to the bottom.
Particularly, as depicted in figs. 1 and 2, lug boss 120 be two trapezoidal and be placed in the two ends at length direction of body 110 respectively.That is, two lug bosses 120 are separately positioned on two minor faces of body 110.The trapezoidal parallel upper base and going to the bottom of must having, going to the bottom of lug boss can equal the minor face of body 110, the upper base in certain trapezoidal portion and go to the bottom and also all can be less than the minor face of body 110.Wherein, l2 is the maximum length L1 of permanent magnet 100, and w1 is the Breadth Maximum W1 of permanent magnet 100.
The length of body 110 is l1, the width of body 110 is w1, the upper base length of lug boss 120 is w2, distance between the upper base of two lug bosses 120 is l2, and meet following relational expression: 1 < l2/l1 < 4,1 < w1/w2 < 4.Thus, both can improve the magnetic flux utilance of motor end, can ensure that again permanent magnet 100 has enough intensity, avoid magneto in the course of the work permanent magnet 100 be damaged.
In some embodiments of the invention, as shown in Figure 3, lug boss 120 is four rectangular configuration, wherein two lug bosses 120 are placed in one end in the longitudinal direction of body 110, two other lug boss 120 is placed in body 110 other end in the longitudinal direction, and each lug boss 120 limit is concordant with the long limit of corresponding body 110.Wherein, l2 is the maximum length L1 of permanent magnet 100, and w1 is the Breadth Maximum W1 of permanent magnet 100.
That is, two in four lug bosses 120 are arranged on a minor face of body 110, and two other in four lug bosses 120 is arranged on another minor face of body 110.And the outer side edges of two lug bosses 120 of homonymy is concordant with the long limit of corresponding body 110 respectively on the Width of body.
The length of body 110 is l1, the width of body 110 is w1, the ultimate range of the lug boss 120 of two homonymies on the length direction of body 110 is l2, the minimum range of the lug boss 120 of two homonymies on the Width of body 110 is w2, and meet following relational expression: 1 < l2/l1 < 3,0 < w2/w1 < 0.8.Thus, both can improve the magnetic flux utilance of motor end, can ensure that again permanent magnet 100 has enough intensity, avoid magneto in the course of the work permanent magnet 100 be damaged.
In some embodiments of the invention, as shown in Figure 4, lug boss 120 is four rectangular configuration, wherein two lug bosses 120 are placed in one end in the direction of the width of body 110, two other lug boss 120 is placed in body 110 other end in the direction of the width, and each lug boss 120 limit is concordant with the minor face of corresponding body 110.Wherein, l1 is the maximum length L1 of permanent magnet 100, and w2 is the Breadth Maximum W1 of permanent magnet 100.
That is, two in four lug bosses 120 are placed on a long limit of body 110, and two other in four lug bosses 120 is placed on another long limit of body 110.And the outer side edges of two lug bosses 120 of homonymy on the length direction of body is concordant with the minor face of corresponding body 110.
The length of body 110 is l1, the width of body 110 is w1, the minimum range of two lug bosses 120 on the length direction of body 110 is l2, the ultimate range of two lug bosses 120 on the Width of body 110 is w2, and meet following relational expression: 1 < l1/l2 < 5,1 < w2/w1 < 4.Thus, both can improve the magnetic flux utilance of motor end, can ensure that again permanent magnet 100 has enough intensity, avoid magneto in the course of the work permanent magnet 100 be damaged.
Certainly, be understandable that, lug boss 120 can be other shapes, and such as semicircle etc., will not enumerate here.
As shown in Figures 1 to 5, the body 110 that above-mentioned various embodiments also can be described to rectangle is provided with disappearance portion, and disappearance portion can be various shape, disappearance portion can be placed in four corners of body 110, on the long limit that also can be placed in body 110 or minor face, even disappearance portion can be placed in the inside of body 110.Alternatively, disappearance portion can be not limited thereto for rectangle, trapezoidal, triangle or circle etc.
The magneto 200 of the embodiment of the present invention is simply described below in conjunction with Fig. 6.
The permanent magnet 100 of above-described embodiment is comprised according to the magneto 200 of the embodiment of the present invention, owing to being provided with above-mentioned permanent magnet 100 according to the magneto 200 of the embodiment of the present invention, therefore the end magnetic flux utilance of this magneto 200 is high, and its cost performance have also been obtained lifting.
The compressor 300 of the embodiment of the present invention is simply described in conjunction with Fig. 7 below.
The magneto 200 of above-described embodiment is comprised according to the compressor 300 of the embodiment of the present invention, owing to being provided with above-mentioned magneto 200 according to the compressor 300 of the embodiment of the present invention, therefore the operating efficiency of this compressor 300 is improved at least to a certain extent.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (13)

1. the permanent magnet for motor, it is characterized in that, described permanent magnet has maximum length L1 and Breadth Maximum W1, the work area of described permanent magnet is S, wherein, described work area S, described maximum length L1 and described Breadth Maximum W1 meet following relational expression: S < L1 × W1.
2. the permanent magnet for motor according to claim 1, is characterized in that, 0.5 × L1 × W1 < S < L1 × W1.
3. the permanent magnet for motor according to claim 1, is characterized in that, described permanent magnet has body and the lug boss of rectangle.
4. the permanent magnet for motor according to claim 3, is characterized in that, described lug boss is two trapezium structures and is placed in the two ends in the longitudinal direction of described body respectively.
5. the permanent magnet for motor according to claim 4, it is characterized in that, the length of described body is l1, the width of described body is w1, the upper base length of described lug boss is w2, distance between the upper base of two described lug bosses is l2, and meets following relational expression: 1 < l2/l1 < 4,1 < w1/w2 < 4.
6. the permanent magnet for motor according to claim 3, it is characterized in that, described lug boss is four rectangular configuration, wherein two lug bosses are placed in one end in the longitudinal direction of described body, two other lug boss is placed in the described body other end in the longitudinal direction, and each lug boss limit is concordant with the long limit of corresponding described body.
7. the permanent magnet for motor according to claim 6, it is characterized in that, the length of described body is l1, the width of described body is w1, the ultimate range of the described lug boss of two homonymies on the length direction of described body is l2, the minimum range of the described lug boss of two homonymies on the Width of described body is w2, and meet following relational expression: 1 < l2/l1 < 3,0 < w2/w1 < 0.8.
8. the permanent magnet for motor according to claim 3, it is characterized in that, described lug boss is four rectangular configuration, wherein two are placed in one end in the direction of the width of described body, two other is placed in the described body other end in the direction of the width, and each lug boss limit is concordant with the minor face of corresponding described body.
9. the permanent magnet for motor according to claim 8, it is characterized in that, the length of described body is l1, the width of described body is w1, the minimum range of two described lug bosses on the length direction of described body is l2, the ultimate range of two described lug bosses on the Width of described body is w2, and meet following relational expression: 1 < l1/l2 < 5,1 < w2/w1 < 4.
10. the permanent magnet for motor according to claim 1, is characterized in that, the body that described permanent magnet has rectangle and the disappearance portion be located on described body.
11. permanent magnets for motor according to claim 10, is characterized in that, described disappearance portion is circular.
12. 1 kinds of magnetoes, is characterized in that, comprise the permanent magnet according to any one of claim 1-11.
13. 1 kinds of compressors, is characterized in that, comprise magneto according to claim 12.
CN201610071166.1A 2016-02-01 2016-02-01 Permanent magnet, permanent magnet motor and compressor Pending CN105515225A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106059141A (en) * 2016-05-27 2016-10-26 广东美芝制冷设备有限公司 Rotor, permanent magnet motor with rotor and compressor
WO2017202001A1 (en) * 2016-05-27 2017-11-30 广东美芝制冷设备有限公司 Rotor, permanent magnet motor having a rotor, and compressor
CN108649723A (en) * 2018-07-04 2018-10-12 珠海凌达压缩机有限公司 A kind of rotor and motor and compressor using the rotor
CN105896755B (en) * 2016-05-27 2018-12-18 广东美芝制冷设备有限公司 permanent magnet, rotor, motor and compressor
EP3468001A4 (en) * 2016-05-27 2019-05-01 Guangdong Meizhi Compressor Co., Ltd. Permanent magnet, rotor, motor, and compressor

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Publication number Priority date Publication date Assignee Title
JPH01122353A (en) * 1987-11-04 1989-05-15 Brother Ind Ltd Synchronous ac servomotor
JPH03222641A (en) * 1990-01-26 1991-10-01 Fanuc Ltd Permanent magnet type synchronous motor
CN101394110A (en) * 2007-09-20 2009-03-25 松下电工株式会社 Claw pole type motor and pump
CN202076856U (en) * 2011-05-26 2011-12-14 宁波鑫其磁钢有限公司 Axial direction cutting corner tile-shaped magnetic steel of electric machine motor
CN102474143A (en) * 2009-08-12 2012-05-23 日立汽车系统株式会社 Dynamo-electric machine for use in vehicles
CN205355973U (en) * 2016-02-01 2016-06-29 广东美芝制冷设备有限公司 Permanent magnet, permanent -magnet machine and compressor

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Publication number Priority date Publication date Assignee Title
JPH01122353A (en) * 1987-11-04 1989-05-15 Brother Ind Ltd Synchronous ac servomotor
JPH03222641A (en) * 1990-01-26 1991-10-01 Fanuc Ltd Permanent magnet type synchronous motor
CN101394110A (en) * 2007-09-20 2009-03-25 松下电工株式会社 Claw pole type motor and pump
CN102474143A (en) * 2009-08-12 2012-05-23 日立汽车系统株式会社 Dynamo-electric machine for use in vehicles
CN202076856U (en) * 2011-05-26 2011-12-14 宁波鑫其磁钢有限公司 Axial direction cutting corner tile-shaped magnetic steel of electric machine motor
CN205355973U (en) * 2016-02-01 2016-06-29 广东美芝制冷设备有限公司 Permanent magnet, permanent -magnet machine and compressor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106059141A (en) * 2016-05-27 2016-10-26 广东美芝制冷设备有限公司 Rotor, permanent magnet motor with rotor and compressor
WO2017202001A1 (en) * 2016-05-27 2017-11-30 广东美芝制冷设备有限公司 Rotor, permanent magnet motor having a rotor, and compressor
CN105896755B (en) * 2016-05-27 2018-12-18 广东美芝制冷设备有限公司 permanent magnet, rotor, motor and compressor
EP3468001A4 (en) * 2016-05-27 2019-05-01 Guangdong Meizhi Compressor Co., Ltd. Permanent magnet, rotor, motor, and compressor
CN106059141B (en) * 2016-05-27 2019-05-03 广东美芝制冷设备有限公司 Rotor, magneto and compressor with rotor
US11004585B2 (en) 2016-05-27 2021-05-11 Guangdong Meizhi Compressor Co., Ltd. Permanent magnet, rotor, motor, and compressor
CN108649723A (en) * 2018-07-04 2018-10-12 珠海凌达压缩机有限公司 A kind of rotor and motor and compressor using the rotor

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Application publication date: 20160420