CN208835867U - A kind of fixed structure of rotor magnetic steel, rotor, motor and automobile - Google Patents

Abstract

The utility model relates to design of electrical motor manufacture fields, and in particular to a kind of fixed structure of rotor magnetic steel.The fixed structure of the rotor magnetic steel provided in the utility model, after magnet steel is packed into the mounting hole of ontology, elastic construction shrinks under the squeezing action of magnet steel and puts aside elastic-restoring force, and abuts magnet steel by elastic-restoring force, guarantees that magnet steel is reliably fixed；Since elastic-restoring force can buffer the radial force for acting on magnet steel during rotor is in rotation and vibration, it is achieved that the fixation of magnet steel in radial directions, it is ensured that motor safe operation, while reducing capsulation material cost and corresponding process.

Description

A kind of fixed structure of rotor magnetic steel, rotor, motor and automobile

Technical field

This application involves design of electrical motor manufacture fields, and in particular to a kind of fixed structure of rotor magnetic steel, rotor, electricity Machine and automobile.

Background technique

Existing rotor structure of permanent-magnet synchronous is broadly divided into two kinds: built-in and surface-mount type.Built-in type permanent-magnet is synchronous Motor is due to excellent performances such as high torque density, high power density and the wide invariable power ranges of speeds, in pure electric vehicle vapour It has a wide range of applications on vehicle.

In the prior art, during producing permanent-magnet synchronous motor rotor, injection molding, process for filling colloid are generallyd use, with Capsulation material is inserted between the outer wall of magnet steel and the inner wall in magnet steel hole, and then realizes the fixation of magnet steel in radial directions.

Utility model content

The application provides a kind of fixed structure of rotor magnetic steel.

Embodiments herein is achieved in that

A kind of fixed structure of rotor magnetic steel comprising ontology offers at least two mounting holes on the ontology；Its In, the inner sidewall of each mounting hole is convexly equipped with elastic construction, and after magnet steel is placed into each mounting hole, the elastic construction exists Elastic-restoring force is shunk and put aside under the squeezing action of the magnet steel, and the magnet steel is abutted by the elastic-restoring force.

In one embodiment of the application: the elastic construction and described body by integral forming.

In one embodiment of the application: the elastic construction is removably attachable to the inner sidewall of the mounting hole.

In one embodiment of the application: the elastic construction is elastic bending member, and the elasticity bending member is along institute State the direction bending of magnet steel installation.

In one embodiment of the application: the elastic construction includes the elastic bumps for having first end and second end Part, wherein the first end is connected to the inner sidewall of the mounting hole, and the second end is directed toward the mounting hole.

In one embodiment of the application: the elastic construction includes First elastic component and second elastic component； Each mounting hole has the first inner sidewall and the second inner sidewall being oppositely arranged；The First elastic component is convexly equipped in described First inner sidewall, the second elastic component are convexly equipped in second inner sidewall, and the First elastic component is in described second It is staggered along the projection of the radial direction of the ontology with the second elastic component on side wall.

In one embodiment of the application: the elastic construction contains at least two the first elastic construction and at least two Second elastic construction, each mounting hole have the first inner sidewall and the second inner sidewall being oppositely arranged, first inside At least two first elastic construction is convexly equipped on wall, second inner sidewall is convexly equipped at least two second elasticity knot Structure.

In one embodiment of the application: at least two first elastic construction on first inner sidewall each other It is staggered；At least two second elastic constructions setting interlaced with each other on second inner sidewall.

In one embodiment of the application: each mounting hole has the first inner sidewall being oppositely arranged and Two inner sidewalls；First inner sidewall is equally spacedly convexly equipped with the first elastic parts of at least two groups, every group of first elastic parts packet Include at least two elastic constructions along magnet steel installation direction arrangement；Second inner sidewall is equally spacedly convexly equipped at least one The second elastic parts of group, every group of second elastic parts include at least two elastic constructions arranged along the magnet steel installation direction； Every group of second elastic parts is located at described at least two along the projection of the radial direction of the ontology on first inner sidewall Organize the middle position of adjacent first elastic parts with second elastic parts of group in the first elastic parts.

In one embodiment of the application: first elastic parts of at least two groups is four group of first elastic construction, often The first elastic construction of group includes three the first elastic constructions；At least one set of second elastic parts is three group of second elastic construction, often The second elastic construction of group includes three the second elastic constructions.

In one embodiment of the application: axial line circumferentially battle array of at least two mounting hole around the ontology Column distribution.

In one embodiment of the application: the circumference array is distributed as even circumferential array distribution.

In one embodiment of the application: the ontology includes multiple the first rotor silicon steel sheets and the second rotor silicon steel Piece；The first rotor silicon steel sheet has the first mounting hole, and the second rotor silicon steel sheet has the second mounting hole, and described first Mounting hole and second mounting hole are correspondingly arranged to form the mounting hole；The inner sidewall of first mounting hole is convexly equipped with described Elastic construction；Described second is provided between the adjacent the first rotor silicon steel sheet of every two in the multiple the first rotor silicon steel sheet Rotor silicon steel sheet.

A kind of rotor is also provided in another embodiment of the application comprising magnet steel and any one described turn The fixed structure of sub- magnet steel, the magnet steel are removably installed in the mounting hole, and the elastic construction is abutted with the magnet steel.

A kind of motor is also provided in another embodiment of the application comprising the rotor.

A kind of automobile is also provided in another embodiment of the application comprising the motor.

By at least one technical solution provided by the embodiments of the present application, at least may be implemented it is following the utility model has the advantages that

The fixed structure of the rotor magnetic steel provided in the utility model, after magnet steel is packed into the mounting hole of ontology, elasticity Elastic-restoring force is shunk under the squeezing action of magnet steel and put aside to structure, and abuts magnet steel by elastic-restoring force, guarantees magnet steel It is reliably fixed；Due to elastic-restoring force can during rotor is in rotation and vibration to act on the radial force of magnet steel into Row buffering, it is achieved that the fixation of magnet steel in radial directions, it is ensured that motor safe operation, while reduce capsulation material at Sheet and corresponding process.

Detailed description of the invention

For the clearer technical solution for illustrating the embodiment of the present application, below to needing attached drawing to be used to make in embodiment It is simple to introduce.It should be appreciated that the following drawings illustrates only the certain embodiments of the application, it is not construed as to the application model The limitation enclosed.To those skilled in the art, without creative efforts, it can obtain according to these attached drawings Obtain other accompanying drawings.

Fig. 1 is partial structurtes signal of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides under the first visual angle Figure；

Fig. 2 is partial structurtes signal of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides under the second visual angle Figure；

Fig. 3 is enlarged drawing at the III of Fig. 1；

Fig. 4 is the partial structurtes of the first rotor silicon steel sheet of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides Schematic diagram；

Fig. 5 is the partial structurtes of the second rotor silicon steel sheet of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides Schematic diagram；

Fig. 6 is the first rotor silicon steel sheet and the second rotor of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides The partial structural diagram of silicon steel sheet stacking；

Fig. 7 is the partial structural diagram for the rotor that the embodiment of the present application 2 provides.

Icon: the fixed structure of 10- rotor magnetic steel；100- ontology；110- mounting hole；The first inner sidewall of 112-；114- Two inner sidewalls；120- elastic construction；The first elastic parts of 122-；The first elastic construction of 123-；The second elastic parts of 124-；125- Second elastic construction；130- the first rotor silicon steel sheet；The first mounting hole of 132-；140- the second rotor silicon steel sheet；142- second pacifies Fill hole；20- rotor；200- magnet steel.

Specific embodiment

To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented The component of example can be arranged and be designed with a variety of different configurations.

Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common Technical staff's every other embodiment obtained without making creative work belongs to the model of the application protection It encloses.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the embodiment of the present application, it should be noted that if term " center " occur, "upper", "lower", " erecting Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the application and simplification retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as the limitation to the application.If only being used in addition, occurring term " first ", " second " etc. in the description of the present application It is described in distinguishing, is not understood to indicate or imply relative importance.

If being not offered as requiring component absolute in addition, occurring the terms such as term "horizontal", "vertical" in the description of the present application Horizontal or pendency, but can be slightly tilted.If "horizontal" only refers to that its direction is more horizontal with respect to for "vertical", not It is to indicate that the structure is had to fully horizontally, but can be slightly tilted.

In the description of the embodiment of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, if occurring Term " setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in this application.

Embodiment 1:

Fig. 1 is partial structurtes signal of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides under the first visual angle Figure, Fig. 2 are partial structural diagram of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides under the second visual angle, Fig. 3 For enlarged drawing at the III of Fig. 1.Fig. 1 to Fig. 3 is please referred to, the embodiment of the present application provides a kind of fixed structure 10 of rotor magnetic steel, packet Ontology 100 is included, at least two mounting holes 110 are offered on ontology 100；Wherein, the inner sidewall of each mounting hole 110 is convexly equipped with bullet Property structure 120.After magnet steel to be placed into each mounting hole 110, elastic construction 120 is shunk under the squeezing action of magnet steel and product Elastic-restoring force is stored, and magnet steel is abutted by elastic-restoring force.

Fig. 4 is the partial structurtes of the first rotor silicon steel sheet of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides Schematic diagram, Fig. 5 are that the partial structurtes of the second rotor silicon steel sheet of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides are shown It is intended to, Fig. 6 is the first rotor silicon steel sheet and the second rotor silicon steel of the fixed structure for the rotor magnetic steel that the embodiment of the present application 1 provides The partial structural diagram of piece stacking.Referring to figure 4. to Fig. 6, in the embodiment of the present application, ontology 100 includes multiple first turns Sub- silicon steel sheet 130 and the second rotor silicon steel sheet 140；The first rotor silicon steel sheet 130 has the first mounting hole 132, the second rotor Silicon steel sheet 140 has the second mounting hole 142, and first mounting hole 132 is correspondingly arranged to form institute with second mounting hole 142 State mounting hole 110；The inner sidewall of first mounting hole 132 is convexly equipped with elastic construction 120；In multiple the first rotor silicon steel sheets 130 The second rotor silicon steel sheet 140 is provided between the adjacent the first rotor silicon steel sheet 130 of every two.Due to the second rotor silicon steel sheet 140 On be not provided with elastic construction 120, and then the elastic construction 120 being arranged on two neighboring the first rotor silicon steel sheet 130 is carried out Interval setting can there are suitable skies for deformation that elastic construction 120 generates during being extruded there are a certain distance Between, and then guarantee the service life of elastic construction 120.

Specifically, in the present embodiment, elastic construction 120 covers two the second rotor silicon steel sheets 140 in radial directions (it should be noted that covering here is not limited to spatially discontiguous covering, can also abutment covering), to guarantee bullet The deformation that property structure 120 generates during being extruded there are suitable space, each adjacent two the first rotor silicon steel sheet 130 it Between three the second rotor silicon steel sheets 140 are at least set.Namely second be arranged between each adjacent two the first rotor silicon steel sheet 130 The number of rotor silicon steel sheet 140 should be greater than for the second rotor silicon steel sheet 140 that elastic construction 120 covers in radial directions Number.

It should be noted that this is not defined the specific size of elastic construction 120, it is possible to understand that, in other tools In body embodiment, those skilled in the art can also set other sizes for elastic construction 120 according to actual needs.

Specifically, in the embodiment of the present application, the adjacent the first rotor silicon of every two in multiple the first rotor silicon steel sheets 130 There are five the second rotor silicon steel sheets 140 for setting between steel disc 130.It should be noted that first turn not adjacent to every two here The quantity of the second rotor silicon steel sheet 140 between sub- silicon steel sheet 130 is defined, it is possible to understand that, in other specific embodiments In, it can also according to the demand of user, by the second rotor silicon steel sheet 140 between the adjacent the first rotor silicon steel sheet 130 of every two Quantity be set as three, four or six etc..

It should be noted that not being defined here to the specific structure of ontology, it is possible to understand that, in other specific implementations In example, those skilled in the art can also set whole integrally formed for ontology according to actual needs.

In the embodiment of the present application, elastic construction 120 and ontology 100 can be integrated molding, can effectively improve in this way Stability and fixing of the elastic construction 120 when abutting magnet steel.It should be noted that here not to elastic construction 120 and this The specific connection type of body 100 is defined, it is possible to understand that, in other specific embodiments, those skilled in the art can also According to actual needs, elastic construction 120 to be removably attachable to the inner sidewall of mounting hole 110, in this way in elastic construction 120 When needing replacing, due to being detachably connected with ontology 100, so, have replacement convenient and only needs replacing elastic construction 120 technical effect.

In the embodiment of the present application, elastic construction 120 can be installed for elastic bending member, elastic bending member along magnet steel On the one hand magnet steel, is fitted into mounting hole 110 by direction bending convenient for user in this way；On the other hand during mounting magnetic steel, Due to elastic construction be bending and it is non-straight, so, can to avoid the protrusion due to straight elastic construction to magnet steel generate resistance and The phenomenon that caused catching phenomenon or magnet steel or elastic bending member damage.During mounting magnetic steel, due to elasticity Structure be bending and it is non-straight, so, can to avoid the protrusion due to straight elastic construction to magnet steel generate resistance caused by block Stagnant phenomenon.

It should be noted that not being defined here to the specific structure of elastic bending member, those skilled in the art can also According to actual needs, to set elastic bending member creasy for elastic bending member, or elastic bending member is set as not having It is creasy, such as cambered surface elasticity bending member.Elastic bending member creasy is set by elastic bending member, then in the work of folding line Not easily to fall off is allowed to the frictional force of magnet steel with lower increase；Elastic bending member is set as not having creasy, such as cambered surface bullet Property bending member, then convenient for user by magnet steel be packed into mounting hole 110.

Also it should be noted that not being defined here to the specific structure of elastic construction 120, it is possible to understand that, at it In his specific embodiment, those skilled in the art can also set elastic construction 120 to including tool according to actual needs Have the elastic bumps part of first end and second end, wherein first end is connected to the inner sidewall of mounting hole 110, and second end is directed toward Mounting hole 110.During specific implementation, elastic construction 120 can be stood on to 110 inner sidewall of mounting hole, pacified in this way in magnet steel After being packed into mounting hole 110, elastic bumps part is directed toward the second end of mounting hole 110 will be compressed and be supported under the action of magnet steel It is connected to magnet steel, and then realizes the fixation to magnet steel.

In the embodiment of the present application, elastic construction 120 may include First elastic component and second elastic component；Each Mounting hole 110 has the first inner sidewall 112 and the second inner sidewall 114 being oppositely arranged；First elastic component is convexly equipped in One inner sidewall 112, second elastic component are convexly equipped in the second inner sidewall 114, First elastic component on the second inner sidewall 114 along The projection of the radial direction of ontology 100 is staggered with second elastic component.Since the first elasticity of the first inner sidewall 112 will be convexly equipped in Component and the second elastic component for being convexly equipped in the second inner sidewall 114 are staggered setting, so, multiple spot can be formed to magnet steel and abutted, And then it realizes and stablizing for magnet steel is supported.

It should be noted that not carried out here to the specific location relationship of First elastic component and second elastic component It limits, it is possible to understand that, in other specific embodiments, those skilled in the art can also according to actual needs, by the first bullet Property component and second elastic component are oppositely arranged.First elastic component and second elastic component are oppositely arranged convenient for common The accommodation space for accommodating magnet steel is limited, so that there is the chucking power from elastic construction at opposite both ends in magnet steel, into And it realizes and stablizing for magnet steel is supported.

In the embodiment of the present application, elastic construction 120 contains at least two the first elastic construction 123 and at least two second Elastic construction 125, each mounting hole 110 have the first inner sidewall 112 and the second inner sidewall 114 being oppositely arranged, and first At least two first elastic constructions 123 are convexly equipped on inner sidewall 112, the second inner sidewall 114 is convexly equipped at least two second elasticity Structure 125.At least two are set by the number of the first elastic construction 123 and the second elastic construction 125, can be stablized to magnet steel Support, it should be noted that be not defined here to the quantity of the first elastic construction 123 and the second elastic construction 125, It should be understood that those skilled in the art can also according to actual needs, by the first elastic construction in other specific embodiments 123 and second the number of elastic construction 125 be set as one.

Specifically, in the embodiment of the present application, at least two first elastic constructions 123 can also be set in the first inner sidewall It is interlaced with each other on 112；It is interlaced with each other on the second inner sidewall 114 that at least two second elastic constructions 125 are set.By increasing bullet Property structure 120 number and using the setting arrangement that is staggered, the supporting point to magnet steel can be increased, and then realize and branch is stablized to magnet steel Support.

In the embodiment of the present application, each mounting hole 110 is set as rectangular opening, parallelogram hole or strip-shaped hole.It needs To be illustrated, the concrete shape of mounting hole 110 is not defined here, it is possible to understand that, in other specific embodiments, Those skilled in the art can also set other shapes for mounting hole 110 according to actual needs.

In the embodiment of the present application, each mounting hole 110 has in the first inner sidewall 112 and second being oppositely arranged Side wall 114；First inner sidewall 112 is equally spacedly convexly equipped with the first elastic parts of at least two groups 122, every group of first elastic parts 122 include at least two elastic constructions 120 arranged along magnet steel installation direction；Second inner sidewall 114 be equally spacedly convexly equipped with to Few one group of second elastic parts 124, every group of second elastic parts 124 include at least two elasticity arranged along magnet steel installation direction Structure 120；Every group of second elastic parts 124 is located at extremely on the first inner sidewall 112 along the projection of the radial direction of ontology 100 Lack the middle position of adjacent first elastic parts 122 with second elastic parts of group 124 in two group of first elastic parts 122. Every group of second elastic parts 124 is located at least two groups along the projection of the radial direction of ontology 100 on the first inner sidewall 112 In first elastic parts 122 with second elastic parts of group 124 adjacent first elastic parts 122 middle position, make to be located at The first elastic parts 122 and the whole preset radial line about ontology 100 of the second elastic parts 124 in mounting hole 110 is equal It is even to be symmetrical arranged, due to being uniformly arranged for structure, the whole uniform quality distribution of ontology 100 can be improved, the rotation of ontology 100 can be improved Stability during turning avoids it that eccentric or oscillation phenomenon occurs because of non-uniform mass in rotary course.

Specifically, in the embodiment of the present application, the first elastic parts of at least two groups 122 is four group of first elastic construction 123, Every group of first elastic construction 123 includes three the first elastic constructions 123；At least one set of second elastic parts 124 is three group second Elastic construction 125, every group of second elastic construction 125 include three the second elastic constructions 125.It should be noted that not right here The group number of first elastic construction 123 and the number of every group of first elastic construction 123 are defined, it is possible to understand that, at other In specific embodiment, two groups or six groups etc. can also be set by the group number of the first elastic construction 123 according to the demand of user, Two or four etc. is set by the number of every group of first elastic construction 123.Similarly, here also not to the second elastic construction 125 group number and the number of every group of second elastic construction 125 are defined, it is possible to understand that, in other specific embodiments, Those skilled in the art can also set one group or five groups etc. for the group number of the second elastic construction 125 according to actual needs, will The number of every group of first elastic construction 123 is set as two or four etc..

In the embodiment of the present application, axial line circumferentially array distribution of at least two mounting holes 110 around ontology 100. Specifically, in the embodiment of the present application, circumference array is distributed as even circumferential array distribution.By at least two mounting holes 110 Around the axial line circumferentially uniform array distribution of ontology 100, it may make the uniform quality of ontology 100 to be distributed, ontology can be improved Stability in 100 rotary courses avoids it that eccentric or vibration occurs because of non-uniform mass in rotary course existing As.

The fixed structure 10 of the rotor magnetic steel provided in embodiments herein, in the installation that magnet steel is packed into ontology 100 Behind hole 110, elastic construction 120 shrinks under the squeezing action of magnet steel and puts aside elastic-restoring force, and is supported by elastic-restoring force Magnet steel is connect, guarantees that magnet steel is reliably fixed；Since elastic-restoring force can be during rotor be in rotation and vibration to effect It is buffered in the radial force of magnet steel, it is achieved that the fixation of magnet steel in radial directions, it is ensured that motor safe operation, simultaneously Reduce capsulation material cost and corresponding process.

Embodiment 2:

Fig. 7 is the partial structural diagram for the rotor that the embodiment of the present application 2 provides.Fig. 7 is please referred to, the present embodiment mentions For a kind of rotor 20, rotor 20 includes the fixed structure 10 of magnet steel 200 and above-mentioned rotor magnetic steel, magnet steel 200 It is removably installed in mounting hole 110, elastic construction 120 is abutted with magnet steel 200.

Rotor 20 provided by the present application, the fixed structure 10 including above-mentioned rotor magnetic steel, therefore also have above-mentioned Beneficial effect.

Embodiment 3:

The present embodiment provides a kind of motors, including above-mentioned rotor 20.Motor provided by the present application, including above-mentioned Rotor 20, therefore also there is above-mentioned beneficial effect.

Embodiment 4:

The present embodiment provides a kind of automobiles, including above-mentioned motor.Automobile provided by the present application, including above-mentioned motor, Therefore also there is above-mentioned beneficial effect.

Obviously, above-described embodiment of the application is just for the sake of clearly illustrating the application example, and being not is pair The restriction of presently filed embodiment.For those of ordinary skill in the art, may be used also on the basis of the above description To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this Made any modifications, equivalent replacements, and improvements etc., should be included in the claim of this application within the spirit and principle of application Protection scope within.

Claims (16)

1. a kind of fixed structure of rotor magnetic steel characterized by comprising

Ontology offers at least two mounting holes on the ontology；

Wherein, the inner sidewall of each mounting hole is convexly equipped with elastic construction, after magnet steel is placed into each mounting hole, the elasticity Elastic-restoring force is shunk under the squeezing action of the magnet steel and put aside to structure, and abuts the magnetic by the elastic-restoring force Steel.

2. the fixed structure of rotor magnetic steel according to claim 1, which is characterized in that the elastic construction and the ontology It is integrally formed.

3. the fixed structure of rotor magnetic steel according to claim 1, which is characterized in that the elastic construction removably connects It is connected to the inner sidewall of the mounting hole.

4. according to claim 1 in -3 rotor magnetic steel described in any claim fixed structure, which is characterized in that the elasticity knot Structure is elastic bending member, and the elasticity bending member is bent along the direction that the magnet steel is installed.

5. according to claim 1 in -3 rotor magnetic steel described in any claim fixed structure, which is characterized in that the elasticity knot Structure includes the elastic bumps part for having first end and second end, wherein the first end is connected to the inside of the mounting hole Wall, the second end are directed toward the mounting hole.

6. according to claim 1 in -3 rotor magnetic steel described in any claim fixed structure, which is characterized in that the elasticity knot Structure includes First elastic component and second elastic component；Each mounting hole has the first inner sidewall being oppositely arranged and Two inner sidewalls；The First elastic component is convexly equipped in first inner sidewall, and the second elastic component is convexly equipped in described second Inner sidewall, the First elastic component is on second inner sidewall along the projection of the radial direction of the ontology and described the Two elastic components are staggered.

7. according to claim 1 in -3 rotor magnetic steel described in any claim fixed structure, which is characterized in that the elasticity knot Structure contains at least two the first elastic construction and at least two second elastic constructions, and each mounting hole has be oppositely arranged One inner sidewall and the second inner sidewall, are convexly equipped at least two first elastic construction on first inner sidewall, and described Two inner sidewalls are convexly equipped at least two second elastic construction.

8. the fixed structure of rotor magnetic steel according to claim 7, which is characterized in that at least two first elasticity knot Structure setting interlaced with each other on first inner sidewall；At least two second elastic construction on second inner sidewall that This is staggered.

9. according to claim 1 in -3 rotor magnetic steel described in any claim fixed structure, which is characterized in that each mounting hole Have the first inner sidewall and the second inner sidewall being oppositely arranged；

First inner sidewall is equally spacedly convexly equipped with the first elastic parts of at least two groups, and every group of first elastic parts includes at least Two elastic constructions along magnet steel installation direction arrangement；

Second inner sidewall is equally spacedly convexly equipped at least one set of second elastic parts, and every group of second elastic parts includes at least Two elastic constructions along magnet steel installation direction arrangement；

Every group of second elastic parts on first inner sidewall along the projection of the radial direction of the ontology be located at it is described extremely Lack the middle position of adjacent first elastic parts with second elastic parts of group in two group of first elastic parts.

10. the fixed structure of rotor magnetic steel according to claim 9, which is characterized in that first elasticity of at least two groups Component is four group of first elastic construction, and every group of first elastic construction includes three the first elastic constructions；

At least one set of second elastic parts is three group of second elastic construction, and every group of second elastic construction includes three second elasticity knots Structure.

11. according to claim 1 in -3 rotor magnetic steel described in any claim fixed structure, which is characterized in that it is described at least The axial line circumferentially array distribution of two mounting holes around the ontology.

12. the fixed structure of rotor magnetic steel according to claim 11, which is characterized in that the circumference array is distributed as justifying All uniform array distributions.

13. the fixed structure of rotor magnetic steel according to claim 1, which is characterized in that the ontology includes multiple first Rotor silicon steel sheet and the second rotor silicon steel sheet；

The first rotor silicon steel sheet has the first mounting hole, and the second rotor silicon steel sheet has the second mounting hole, and described One mounting hole and second mounting hole are correspondingly arranged to form the mounting hole；

The inner sidewall of first mounting hole is convexly equipped with the elastic construction；

Second rotor is provided between the adjacent the first rotor silicon steel sheet of every two in the multiple the first rotor silicon steel sheet Silicon steel sheet.

14. a kind of rotor, which is characterized in that the rotor includes any power in magnet steel and claim 1 to 13 The fixed structure of rotor magnetic steel described in, the magnet steel are removably installed in the mounting hole, the elastic construction and institute State magnet steel abutting.

15. a kind of motor, which is characterized in that the motor includes rotor described in claim 14.

16. a kind of automobile, which is characterized in that the automobile includes motor described in claim 15.