CN106059145A - Motor rotor and variable frequency motor - Google Patents
Motor rotor and variable frequency motor Download PDFInfo
- Publication number
- CN106059145A CN106059145A CN201610564815.1A CN201610564815A CN106059145A CN 106059145 A CN106059145 A CN 106059145A CN 201610564815 A CN201610564815 A CN 201610564815A CN 106059145 A CN106059145 A CN 106059145A
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- CN
- China
- Prior art keywords
- magnet steel
- groove
- rotor
- concavo
- mesozone
- 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.)
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Classifications
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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
Abstract
The invention provides a motor rotor comprising a motor rotor core and magnetic steel. The motor rotor core is provided with magnetic steel slots, and the magnetic steel is installed in the magnetic steel slots. The magnetic steel is provided with first concave-convex matching structures. The corresponding positions of the magnetic steel slots are provided with second concave-convex matching structures matched with the first concave-convex matching structures. The first concave-convex matching structures and the second concave-convex matching structures are connected in a clamping way. According to the motor rotor, the mutually matched first concave-convex matching structures and the second concave-convex matching structures are arranged on the magnetic steel and the magnetic steel slots so that the contact area of the magnetic steel and the magnetic steel slots can be increased, relative displacement of the magnetic steel in the magnetic steel slots can be reduced and the stability of motor operation can be enhanced. The invention also provides a variable frequency motor.
Description
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of rotor and frequency conversion motor.
Background technology
Inverter compressor motor is all to use permanent magnetic synchronous motor structure at present, and motor mainly includes rotor and stator, its
In, rotor includes rotor core and the magnet steel being located on rotor core, and specifically, rotor core is provided with the magnet steel placing magnet steel
Groove, but existing magnet steel groove is poor with the fitment stability of magnet steel, makes magnet steel in motor operation course can have relatively in magnet steel groove
Big relative displacement, causes unnecessary damage and other unstable factors.
Summary of the invention
Based on this, for the problems referred to above, it is necessary to provide a kind of rotor and frequency conversion motor, reduce magnet steel at magnet steel groove
Interior relative displacement, improves the stability that motor runs.
A kind of rotor, including motor rotor core and magnet steel, described motor rotor core is provided with magnet steel groove, described
Magnet steel is installed in described magnet steel groove,
Being provided with the first concavo-convex coupling structure on described magnet steel, the correspondence position of described magnet steel groove is provided with and described first
Second concavo-convex coupling structure of concavo-convex coupling structure matching；
Described first concavo-convex coupling structure is connected together with described second concavo-convex structure of mating.
Wherein in an embodiment, described first concavo-convex coupling structure with described second concavo-convex mate structure be groove with
Protruding combination, described projection is sticked in described groove.
Wherein in an embodiment, the cross section of described magnet steel is rectangle, and described magnet steel includes centre along its length
District and be positioned at the marginal zone of both sides, described mesozone, described first concavo-convex coupling structure is positioned at described mesozone.
Wherein in an embodiment, the thickness of described mesozone from the junction of described marginal zone and described mesozone to
The midpoint of described mesozone is gradually increased or is gradually reduced, and forms described first concaveconvex structure.
Wherein in an embodiment, the cross section of described magnet steel is arc, described magnet steel circumferentially include mesozone and
Being positioned at the marginal zone of both sides, described mesozone, described first concavo-convex coupling structure is positioned at described mesozone.
Wherein in an embodiment, the cross section of described groove is rectangle, trapezoidal, triangle or arc.
Wherein in an embodiment, described magnet steel is provided with multiple described groove or described projection, and multiple described
The size of groove or described projection differs.
Wherein in an embodiment, described magnet steel groove is multiple, and multiple described magnet steel grooves are uniformly distributed, and each described
Described groove or projection it is provided with on magnet steel groove.
Wherein in an embodiment, the described groove that multiple described magnet steel grooves are arranged or the quantity of described projection, shape
Shape and size are the most identical.
A kind of frequency conversion motor, including the rotor described in any of the above-described item.
Above-mentioned rotor, by magnet steel with arrange on magnet steel groove that first cooperated is concavo-convex mates structure and second
Concavo-convex coupling structure, can increase the contact area of magnet steel and magnet steel groove, reduces magnet steel relative displacement in magnet steel groove, improves
The stability that motor runs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the rotor of one embodiment of the invention；
Fig. 2 is the structural representation of the rotor of another embodiment of the present invention；
Fig. 3 is the structural representation of the rotor of further embodiment of this invention；
Fig. 4 is the structural representation of the rotor of further embodiment of this invention；
Fig. 5 is the structural representation of the rotor of further embodiment of this invention；
Fig. 6 is the structural representation of the rotor of further embodiment of this invention.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail.Elaborate a lot of detail in the following description so that fully understanding this
Bright.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can be not
Doing similar improvement in the case of running counter to intension of the present invention, therefore the present invention is not limited by following public being embodied as.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can be directly separately
On one element or element placed in the middle can also be there is.When an element is considered as " connection " another element, and it is permissible
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level
", "left", "right" and similar statement for illustrative purposes only, being not offered as is unique embodiment.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention
The implication that technical staff is generally understood that is identical.The term used the most in the description of the invention is intended merely to describe tool
The purpose of the embodiment of body, it is not intended that in limiting the present invention.Term as used herein " and/or " include one or more
Arbitrary and all of combination of relevant Listed Items.
Referring to Fig. 1, it is the structural representation of rotor 100 of one embodiment of the invention.
Rotor 100 includes: motor rotor core 110 and magnet steel 120, and described motor rotor core 110 is provided with magnetic
Steel tank 111, described magnet steel 120 is installed in described magnet steel groove 111, and described magnet steel 120 is provided with the first concavo-convex coupling structure,
The correspondence position of described magnet steel groove 111 is provided with and described first concavo-convex the second concavo-convex coupling structure mating structure matching, institute
State the first concavo-convex coupling structure to be connected together with described second concavo-convex structure of mating.Specifically, described first concavo-convex coupling structure
Being groove and protruding combination with described second concavo-convex structure of mating, described projection is sticked in described groove.
The shape being appreciated that magnet steel 120 is corresponding with the shape of magnet steel groove 111, i.e. magnet steel 120 can be placed
In magnet steel groove 111, and the hole between magnet steel 120 with corresponding magnet steel groove 111 should be not excessive.Magnet steel 120 and phase in other words
The magnet steel groove 111 answered goodness of fit in shape and volume is high.
Referring to Fig. 1, described first concavo-convex coupling structure is the groove 121 being arranged on described magnet steel 120, described second
Concavo-convex coupling structure is correspondence position the projection 113 of described groove 121 coupling being arranged at described magnet steel groove 111, described convex
Play 113 to be sticked in described groove 121.In the present embodiment, described magnet steel 120 is made up of NdFeB material.
Specifically, the cross section of described magnet steel 120 is rectangle, and described magnet steel 120 includes mesozone and position along its length
In the marginal zone of both sides, described mesozone, described groove 121 is positioned at described mesozone.Owing to the magnetic field lines of mesozone is less,
By groove 121 is arranged at mesozone, the performance on rotor 100 can be avoided to produce impact, and, recessed by arranging
Groove 121 and protruding 113 structures matched, reduce the relative displacement avoiding magnet steel 120 to occur in magnet steel groove 111, improve electricity
The stability that machine rotor 100 runs.
Referring to Fig. 1, the midpoint of two sides being oppositely arranged of described magnet steel 120 is provided with a groove 121, and
The cross section of groove 121 is rectangle.
It is pointed out that in other embodiments, the quantity of groove 121 can be also multiple, such as, and multiple grooves 121
Size the most unequal, to improve further the stability that magnet steel is installed with magnet steel groove.Additionally, the cross section of groove 121 also may be used
Thinking other shapes, such as, triangle, arc, the regular shape such as trapezoidal, certainly, in certain embodiments, groove 121 also may be used
Think irregularly shaped.And for example, wherein in an embodiment, the bottom of groove 121 is also provided with micro structure, accordingly
Ground, protruding 113 and the structure matching of groove 121, to improve the magnet steel 120 stability at magnet steel groove 111 further.
Further, the degree of depth of described groove 121 is not more than the 1/5 of the thickness of described magnet steel 120, more preferably, described recessed
The degree of depth of groove 121 is not more than the 1/8 of the thickness of described magnet steel 120, and more preferably, the degree of depth of described groove 121 is not more than described magnetic
The 1/10 of the thickness of steel 120, to reduce the groove 121 impact on described rotor 100 magnetic field lines, it is ensured that to rotor
The normal work of 100.
Specifically, described motor rotor core 110 being provided with multiple magnet steel groove 111, multiple described magnet steel grooves 111 are uniform
Distribution, and on each described magnet steel groove 111, it is provided with one described protruding 113.In the present embodiment, multiple magnet steel grooves 111
The form and dimension of described protruding the 113 of upper setting is the most equal, in order to magnet steel 120 and the installation process of magnet steel groove 111.
It is pointed out that in other embodiments, the quantity of projection 113 on each magnet steel groove 111, form and dimension
Can also be incomplete same.
Referring to Fig. 2, it is the structural representation of rotor 200 of another embodiment of the present invention.
Unlike Fig. 1, the described first concavo-convex coupling structure of rotor 200 and the described second concavo-convex shape mated
Shape is different, i.e. groove is shaped as arc with protruding cross section.Specifically, the groove on the magnet steel 220 of rotor 200
The cross section of 221 is arc, and correspondingly, the correspondence position of magnet steel groove 211 is also equipped with the arc convex mated with groove 221
213。
Referring to Fig. 3, it is the structural representation of rotor 300 of further embodiment of this invention.
Unlike Fig. 1, the described first concavo-convex coupling structure of rotor 300 and the shape of described second concaveconvex structure
Shape is different.Specifically, the thickness of the mesozone of described magnet steel 320 from the junction of marginal zone and mesozone to the midpoint of mesozone
Place is gradually reduced, and obtains the first concavo-convex coupling structure, i.e. groove 321.Such as, the thickness of described mesozone midpoint is described limit
The 0.50～0.95 of the thickness in edge district, more preferably, the thickness that thickness is described marginal zone 0.60 of described mesozone midpoint～
0.90, more preferably, the thickness that thickness is described marginal zone 0.80～0.85 of described mesozone midpoint.
It should be noted that wherein in an embodiment, the thickness of mesozone is from the junction of marginal zone Yu mesozone
It is gradually increased to the midpoint of mesozone, obtains projection.
Referring to Fig. 4, it is the structural representation of rotor 400 of further embodiment of this invention.
Unlike Fig. 1, the described first concavo-convex coupling structure of rotor 400 and the number of the second concavo-convex coupling structure
Amount difference, i.e. groove is different from protruding quantity.Specifically, two sides being oppositely arranged of the magnet steel 420 of rotor 400
Middle part be provided with two grooves 421, correspondingly, the correspondence position of magnet steel groove 411 is also equipped with two and mates with groove 421
Projection 413.
Referring to Fig. 5, it is the structural representation of rotor 500 of further embodiment of this invention.
Unlike Fig. 1, the first concavo-convex coupling structure of rotor 500 is protruding, and the second concavo-convex coupling structure is
Groove.Specifically, the magnet steel 520 of rotor 500 being provided with protruding 521, the correspondence position of described magnet steel groove 511 is provided with
With described protruding 521 grooves 513 mated, described protruding 521 are sticked in described groove 513.
It is pointed out that wherein in an embodiment, described first concavo-convex coupling structure is groove and protruding group
Closing, described second concavo-convex coupling structure is also groove and protruding combination, i.e. described magnet steel is provided with groove and projection simultaneously,
Described magnet steel groove is provided with projection at the groove correspondence position with described magnet steel, is provided with recessed with the protruding corresponding position of magnet steel
Groove.
Referring to Fig. 6, it is the structural representation of rotor 600 of further embodiment of this invention.
Unlike Fig. 1, the magnet steel groove 611 of rotor 600 and the cross section of magnet steel 620 are arc.In other words,
Its entirety can be described as a partial circle shape, and i.e. it is a part for an annulus, and less than half annulus.Convex structure
Magnet steel groove 611 be arranged on motor rotor core 610 near edge, and the opening of circular arc is towards motor rotor core 610
Edge direction.In the present embodiment, described magnet steel 621 is made up of Ferrite Material.
Specifically, described magnet steel 620 circumferentially includes mesozone and is positioned at the marginal zone of both sides, described mesozone, described
One concavo-convex coupling structure is positioned at described mesozone.More specifically, described first concavo-convex coupling structure is for being arranged at described magnet steel 620
The groove 621 of midpoint of two arc-shaped sides being oppositely arranged, described second concavo-convex coupling structure is for being arranged at described magnet steel
Groove 611 correspondence position the projection 613 mated with described groove 621, the cross section of groove 621 and projection 613 is arc.
Further, the degree of depth of described groove 621 is not more than the 1/5 of the thickness of described magnet steel 620, more preferably, described recessed
The degree of depth of groove 621 is not more than the 1/8 of the thickness of described magnet steel 620, and more preferably, the degree of depth of described groove 621 is not more than described magnetic
The 1/10 of the thickness of steel 620, to reduce the groove 621 impact on rotor 600 magnetic field lines, it is ensured that to rotor 600
Normal work.
Above-mentioned rotor, by magnet steel with arrange on magnet steel groove that first cooperated is concavo-convex mates structure and second
Concavo-convex coupling structure, can increase the contact area of magnet steel and magnet steel groove, reduces magnet steel relative displacement in magnet steel groove, improves
The stability that motor runs.
The rotor provided based on above-described embodiment, the embodiment of the present invention additionally provides a kind of frequency conversion motor, this frequency conversion
Motor includes rotor, and this rotor is the rotor described in above-described embodiment.
Owing to above-mentioned rotor has above-mentioned technique effect, the motor that the embodiment of the present invention provides has above-mentioned motor and turns
Son, then the frequency conversion motor that the embodiment of the present invention provides also has corresponding technique effect, repeats no more herein.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a rotor, including motor rotor core and magnet steel, described motor rotor core is provided with magnet steel groove, described magnetic
Steel is installed in described magnet steel groove, it is characterised in that
Being provided with the first concavo-convex coupling structure on described magnet steel, the correspondence position of described magnet steel groove is provided with first concavo-convex with described
Second concavo-convex coupling structure of coupling structure matching；
Described first concavo-convex coupling structure is connected together with described second concavo-convex structure of mating.
Rotor the most according to claim 1, it is characterised in that described first concavo-convex coupling structure is second recessed with described
Convex coupling structure is groove and protruding combination, and described projection is sticked in described groove.
Rotor the most according to claim 2, it is characterised in that the cross section of described magnet steel is rectangle, described magnet steel
Including mesozone along its length and be positioned at the marginal zone of both sides, described mesozone, described first concavo-convex coupling structure is positioned at described
Mesozone.
Rotor the most according to claim 3, it is characterised in that the thickness of described mesozone is from described marginal zone and institute
State the junction of the mesozone midpoint to described mesozone to be gradually increased or be gradually reduced, form described first concaveconvex structure.
Rotor the most according to claim 2, it is characterised in that the cross section of described magnet steel is arc, described magnet steel
Circumferentially including mesozone and be positioned at the marginal zone of both sides, described mesozone, described first concavo-convex coupling structure is positioned at described centre
District.
Rotor the most according to claim 2, it is characterised in that the cross section of described groove is rectangle, trapezoidal, triangle
Shape or arc.
Rotor the most according to claim 2, it is characterised in that be provided with multiple described groove or institute on described magnet steel
State projection, and the size of multiple described groove or described projection differs.
Rotor the most according to claim 2, it is characterised in that described magnet steel groove is multiple, multiple described magnet steel grooves
It is uniformly distributed, and is provided with described groove or projection on each described magnet steel groove.
Rotor the most according to claim 8, it is characterised in that on multiple described magnet steel grooves arrange described groove or
The quantity of described projection, form and dimension are the most identical.
10. a frequency conversion motor, it is characterised in that include the rotor according to any one of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564815.1A CN106059145A (en) | 2016-07-15 | 2016-07-15 | Motor rotor and variable frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564815.1A CN106059145A (en) | 2016-07-15 | 2016-07-15 | Motor rotor and variable frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106059145A true CN106059145A (en) | 2016-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610564815.1A Pending CN106059145A (en) | 2016-07-15 | 2016-07-15 | Motor rotor and variable frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106059145A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450138A (en) * | 2018-12-28 | 2019-03-08 | 华人运通控股有限公司 | Embedded magnet steel outer rotor iron core component and hub motor |
| CN109921532A (en) * | 2019-04-25 | 2019-06-21 | 南通雄亚机电制造有限公司 | A kind of embedded permanent magnet machine rotor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008131693A (en) * | 2006-11-17 | 2008-06-05 | Daikin Ind Ltd | Field magnetic element, rotary electric machine and compressor |
| CN202374067U (en) * | 2011-11-21 | 2012-08-08 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN103026585A (en) * | 2010-07-23 | 2013-04-03 | 丰田自动车株式会社 | Rotor and IPM motor |
| CN205864111U (en) * | 2016-07-15 | 2017-01-04 | 珠海凌达压缩机有限公司 | Rotor and frequency conversion motor |
-
2016
- 2016-07-15 CN CN201610564815.1A patent/CN106059145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008131693A (en) * | 2006-11-17 | 2008-06-05 | Daikin Ind Ltd | Field magnetic element, rotary electric machine and compressor |
| CN103026585A (en) * | 2010-07-23 | 2013-04-03 | 丰田自动车株式会社 | Rotor and IPM motor |
| CN202374067U (en) * | 2011-11-21 | 2012-08-08 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN205864111U (en) * | 2016-07-15 | 2017-01-04 | 珠海凌达压缩机有限公司 | Rotor and frequency conversion motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450138A (en) * | 2018-12-28 | 2019-03-08 | 华人运通控股有限公司 | Embedded magnet steel outer rotor iron core component and hub motor |
| CN109921532A (en) * | 2019-04-25 | 2019-06-21 | 南通雄亚机电制造有限公司 | A kind of embedded permanent magnet machine rotor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
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| RJ01 | Rejection of invention patent application after publication |