CN207968111U - Motor rotor - Google Patents

Abstract

A kind of motor rotor, to solve the problems, such as that existing motor rotor packaging efficiency is bad, the motor rotor of the utility model includes：One shaft；One positioning seat, the positioning seat combine the periphery of the shaft, and there are one projecting ring sections for one end tool of the positioning seat；One permanent magnet, the permanent magnet are set to the positioning seat, and one end of the permanent magnet abuts the projecting ring section of the positioning seat；And an end cap, the end cap abut the other end of the permanent magnet.

Description

Motor rotor

Technical field

The utility model is related to a kind of motor rotor more particularly to a kind of motor rotors suitable for inner rotor motor.

Background technology

Fig. 1 is please referred to, is a kind of existing motor rotor 8 of the early application in inner rotor motor, the existing horse Up to the tool of rotor 8 there are one shaft 81 and a permanent magnet 82, which is incorporated into the shaft 81.In general, should Permanent magnet 82 can combine the peripheral surface of the shaft 81 with close-fitting, or after the permanent magnet 82 is sleeved on the shaft 81, It is glued between the permanent magnet 82 and the shaft 81, the permanent magnet 82 can be made to remain attached to the pre-determined bit in the shaft 81 It sets.

However, to ensure that the existing motor rotor 8 can maintain sense magnetism appropriate with the stator pack of inner rotor motor Gap, the existing motor rotor 8 need to be selected with certain thickness permanent magnet 82, therefore such existing motor rotor 8 have the problem of high manufacturing cost and weight.

Fig. 2 is please referred to, for this purpose, there is dealer to develop another existing motor rotor 9, the existing motor rotor 9 tool then There are one the permanent magnet 93 of stock 92, one of shaft 91, one and two locating plates 94.When assembling, first one of them can be determined 94 close-fitting fitting of the bit slice shaft 91, then wear into the stock 92 and the permanent magnet 93, so that the permanent magnet 93 is linked in this The peripheral surface of stock 92, and one end of the stock 92 and the permanent magnet 93 is connected to the locating plate 94, it finally again will be another 94 close-fitting fitting of a locating plate shaft 91, and abut the stock 92 and the other end of the permanent magnet 93.Accordingly, this is existing Relatively thin permanent magnet 93 can be selected in motor rotor 9, to effectively reduce manufacturing cost and mitigate weight, but the existing motor Rotor 9 but derives the bad problem of packaging efficiency because the number of components increases.

In view of this, existing motor rotor still has improvedd necessity really.

Utility model content

To solve the above problems, the utility model provides a kind of motor rotor, slim permanent magnet is not only used but also has been easy to Assembling can have both and reduce manufacturing cost, mitigate weight and promote the multi-efficiencies such as packaging efficiency.

The motor rotor of the utility model, including：One shaft；One positioning seat, the positioning seat combine the outer of the shaft In week, there are one projecting ring sections for one end tool of the positioning seat；One permanent magnet, the permanent magnet are set to the positioning seat, the permanent magnetic One end of iron abuts the projecting ring section of the positioning seat；And an end cap, the end cap abut the other end of the permanent magnet.

Accordingly, the motor rotor of the utility model for slim permanent magnet fitting and supports due to the positioning seat is arranged It connects, and an end cap of arranging in pairs or groups again can be by the permanent magnet strong fix, therefore assembly program is very simple；Thus, this reality With novel motor rotor not only using slim permanent magnet again be easily assembled to, can have both reduce manufacturing cost, mitigation weight and Promote the multi-efficiencies such as packaging efficiency.

Wherein, which there are multiple connecting plates to connect an inner ring body and an outer ring body, which should Shaft, the projecting ring section are integrally formed the one end for connecting the outer ring body, and it is outer to abut the bulge loop which is placed on the outer ring body Portion forms an air duct between any two adjacent connection plates between the inner ring body and the outer ring body.In this way, air-flow can pass through The inside of positioning seat, having reduces motor rotor operational temperature and other effects.

Wherein, multiple connecting plate can be inclined to set.In this way, the wind inside by positioning seat can be promoted further Amount, having preferably reduces motor rotor operational temperature and other effects.

Wherein, which there is at least one rib to connect an inner disc and an external disk, the inner disc fitting shaft, this External disk abuts the permanent magnet, the position opposite with multiple air duct of the space between the inner disc and the external disk.In this way, the end cap can be tied It closes the shaft and compresses the permanent magnet, and heat dissipation effect will not be reduced because the end cap is arranged.

Wherein, the quantity of the rib is preferably multiple, and it is outer with this that multiple rib is annularly connected to the inner disc in a row Disk, multiple rib position opposite with multiple connecting plate.In this way, multiple rib removes the structural strength that can promote entire terminal cover Outside, each air duct will not be also blocked completely, and there is improving radiating effect and other effects.

Wherein, which can be equipped at least one positioning region towards the end face of the permanent magnet, which can be Axial end portion is equipped at least one positioning region, the positioning region of the external disk and the mutual clip in the positioning region of the permanent magnet.In this way, can It is rotated again relative to the permanent magnet after preventing the end cap from compressing the permanent magnet, has and promote linking steady character and other effects.

Wherein, which is equipped at least one counterweight tank backwards to the end face of the permanent magnet.In this way, can be used to accommodating balance Counterweight has the smooth rotation degree for promoting motor rotor and smoothness and other effects so as to adjusting the counterweight of the motor rotor.

Wherein, the axial height of the inner ring body is smaller than the axial height of the outer ring body, and the inner ring body is to being located at the outer shroud In body axial range, each connecting plate is formed further away from one end of the projecting ring section towards the inclined inclined-plane of the inner ring body, in this A dented space for being oriented to the inner ring body is formed inside outer ring body；The inner disc is not total towards the end face of the positioning seat with the external disk Plane, each rib is tilted by the external disk towards the inner disc, a protrusion, the protrusion is collectively formed by multiple rib and the inner disc Contraposition penetrates the dented space.In this way, with the operation ease and other effects promoted when assembling end cap.

Wherein, which can set there are one installing section, the smallest radial width of the installation section be more than the shaft other The radial width at position, the inner ring body and the inner disc are placed on the installation section of the shaft.In this way, assembling the inner ring with being promoted Operation ease and other effects when body and the inner disc.

Wherein, the inner ring body and inner disc can match respectively with the installation section pine of the shaft or slide fit is combined, a fixation Ring close-fitting is spirally connected in conjunction with the installation section and abuts the inner ring body relatively adjacent to the end face of the projecting ring section, another fixed ring close-fitting Or it is spirally connected in conjunction with the installation section and the end face that abuts the inner disc further away from the inner ring body.In this way, the inner ring body and the inner disc can Swimmingly set is bonded to the installation section without easy rhegma, and two fixed rings can be by the positioning seat and the firm limit of the end cap Precalculated position in the shaft has the operation ease and knot promoted when the positioning seat and the end cap to be assembled to the shaft Close stability and other effects.

Wherein, which can project cladding and be incorporated into the shaft.In this way, turning with the motor is further simplified The assembly program and other effects of son.

Wherein, the radial section of the installation section can be in non-circular, and the radial section of the endoporus of the inner ring body coordinates the peace Dress section forms non-circular.It will not be rotated again relative to the shaft in this way, the positioning seat is placed on after the shaft, have and promote combination Stability and other effects.

Wherein, the axial height of the inner ring body can be more than the half of the installation section axial height.In this way, it is interior to promote this The structural strength of ring body makes the inner ring body be not easy rhegma, has and prolongs the service life and other effects.

The motor rotor may also include an envelope magnet ring, which projects cladding by the outer ring body and combine, the permanent magnetic Iron is linked in the periphery of the envelope magnet ring.In this way, envelope magnetic effect can be provided to the permanent magnet by the envelope magnet ring, also has and promoted The linking steady character of the envelope magnet ring and the positioning seat, and simplify the assembly program and other effects of the motor rotor.

Wherein, which can be equipped at least one counterweight tank backwards to the end face of the permanent magnet.In this way, can be used to house Counterweight part has the work(such as the smooth rotation degree for promoting motor rotor and smoothness so as to adjusting the counterweight of the motor rotor Effect.

Wherein, which can be equipped at least one positioning region towards the end face of the permanent magnet, and the permanent magnet is in axis It is equipped at least one positioning region, the positioning region of the permanent magnet and the mutual clip in the positioning region of the projecting ring section to end.In this way, can It prevents the permanent magnet from being rotated again relative to the positioning seat, has and promote linking steady character and other effects.

Description of the drawings

Fig. 1：A kind of structural schematic diagram of existing motor rotor.

Fig. 2：Another structural schematic diagram of existing motor rotor.

Fig. 3：The dimensional decomposition structure diagram of one embodiment of the utility model.

Fig. 4：The combination schematic cross-sectional view of one embodiment of the utility model.

Fig. 5：The dimensional structure diagram at another visual angle of one embodiment of the utility model.

Fig. 6：One embodiment of the utility model is assembled in the structural schematic diagram in motor shell block.

Reference sign

This Shi of ﹝ Xin Xing ﹞

1 shaft 11 installs section

2 positioning seat, 21 inner ring body

22 outer ring body, 23 connecting plate

231 inclined-plane, 24 projecting ring section

241 counterweight tank, 242 positioning region

3 permanent magnet, 31 positioning region

4 end cap, 41 inner disc

42 external disk, 421 counterweight tank

422 positioning region, 43 rib

5 envelope magnet rings

6 fixed rings

7 motor shell block, 71 axis part

72 stator packs

The protrusions C dented space P

The air ducts W

﹝ Xian You Ji Shu ﹞

8 motor rotor, 81 shaft

82 permanent magnets

9 motor rotor, 91 shaft

92 stock, 93 permanent magnet

94 locating plates.

Specific implementation mode

To enable the above-mentioned and other purposes, feature and advantage of the utility model to be clearer and more comprehensible, hereafter spy enumerates this reality With novel preferred embodiment, and coordinate attached drawing, is described in detail below：

The utility model directionality as described below or its approximate term, such as " on（Top）", " under（Bottom）", "inner", "outside", " side " etc., mostly in reference to the direction of attached drawing, each side's tropism or its approximate term are only aiding in illustrating and understand this practicality Novel each embodiment, not limiting the utility model.

Fig. 3, Fig. 4 are please referred to, is a preferred embodiment of the motor rotor of the utility model, the motor rotor is generally Including a permanent magnet 3 of positioning seat 2, one of shaft 1, one and an end cap 4, which combines the shaft 1, this is forever Long magnet 3 is placed on the positioning seat 2, which abuts the permanent magnet 3.

The motor rotor of the utility model is mainly used for inner rotor motor, which is rotatably assembled in motor base Seat, and when inner rotor motor running, which can be that axle center generates rotation relative to motor base with the shaft 1. In the present embodiment, which can set there are one section 11 is installed, and the smallest radial width of the installation section 11 is more than the shaft 1 The radial width at other positions, and it is intended to install the component to the installation section 11 then because internal diameter is generally consistent with the installation section 11, Therefore it can move smoothly through other positions in the shaft 1 and wear again and be bound to the installation section 11；In other words, those components with Other positions in the shaft 1 are matched in pine or slide fit state, therefore after being inserted in the shaft 1, it can be smooth by without arduously pushing away It squeezes, until when those components move into the installation section 11, just may require that force adjustment to consolidate fitting.The diameter of the installation section 11 Preferably it is in non-circular to section so that being set in the component of the installation section 11 will not rotate relative to the shaft 1.

The positioning seat 2 combines the periphery of the shaft 1, one end of the positioning seat 2 to have there are one projecting ring section 24 so that this is permanent Magnet 3 abuts.In the present embodiment, the positioning seat 2 include 21, outer ring bodies 22 of an inner ring body, multiple connecting plates 23 and The projecting ring section 24.The positioning seat 2 is placed on the installation section 11 of the shaft 1 by the inner ring body 21, therefore the diameter of 21 endoporus of inner ring body The installation section 11 can be also coordinated to be formed to section non-circular.Multiple connecting plate 23 is annularly arranged in the outer of the inner ring body 21 Week, and each connecting plate 23 connects the inner ring body 21 and the outer ring body 22, making between the inner ring body 21 and the outer ring body 22 can be An air duct W is formed between any two adjacent connection plates 23, makes air-flow that can turn by reducing the motor inside the positioning seat 2 The operational temperature of son；In particular, may be selected that multiple connecting plate 23 is made to be inclined to set, which is passed through with further promoted Air quantity inside seat 2.The projecting ring section 24 is then integrally formed and is connected to one end of the outer ring body 22, and extend radially outward for The permanent magnet 3 abuts；Fig. 4, Fig. 5 are please referred to, which can be equipped at least one match backwards to the end face of the permanent magnet 3 Baking soda 241（May be, for example, an annular groove or multiple grooves separately）, which can be used to accommodating counterweight part, So as to adjusting the counterweight of the motor rotor, to promote the smooth rotation degree and smoothness of the motor rotor；24 court of projecting ring section It can be then equipped at least one positioning region 242 to the end face of the permanent magnet 3, to prevent the permanent magnet 3 from rotating.

Referring again to Fig. 3, Fig. 4, the axial height of the inner ring body 21 is preferably more than the one of 11 axial height of installation section Half, to promote the structural strength of the inner ring body 21, enable the inner ring body 21 firm fitting shaft 1, and support from multiple The weight of the components such as connecting plate 23, the outer ring body 22 and the permanent magnet 3 is without easy rhegma.In addition, the axial direction of the inner ring body 21 Height be preferably less than the outer ring body 22 axial height, make the inner ring body 21 can to being located in 22 axial range of outer ring body, and Make each connecting plate 23 that can be formed towards 21 inclined inclined-planes 231 of the inner ring body, in this further away from one end of the projecting ring section 24 22 inside of outer ring body forms a dented space C for being oriented to the inner ring body 21.

The permanent magnet 3 is placed on outside the outer ring body 22 of the positioning seat 2, and one end of the permanent magnet 3 abuts the positioning seat 2 Projecting ring section 24.The permanent magnet 3 can be respectively equipped at least one positioning region 31 at axial both ends, in the one of the permanent magnet 3 When end abuts the projecting ring section 24, enable the positioning region 31 of the permanent magnet 3 with the 242 mutual clip of positioning region of the projecting ring section 24, So as to preventing the permanent magnet 3 from being rotated again relative to the positioning seat 2.Such as but without limitation, the present embodiment can be by the permanent magnetic The positioning region 31 of iron 3 is set as groove, and then correspondence is set as convex block for the positioning region 242 of the projecting ring section 24, with by being easy to molding structure To reach the effect for preventing the permanent magnet 3 from rotating.In addition, 31 quantity of positioning region set on the axial both ends of the permanent magnet 3 can With difference promotion assembling convenience is helped so as to preventing from getting wrong the assembly orientation of the permanent magnet 3 when assembling.

The end cap 4 abuts the other end of the permanent magnet 3, and it is permanent to limit this jointly with the projecting ring section 24 with the positioning seat 2 Magnet 3 can not axial displacement.In the present embodiment, which includes 41, external disks 42 of an inner disc and at least one rib 43, which connects the inner disc 41 and the external disk 42.The end cap 4 is placed on the installation section 11 of the shaft 1 by the inner disc 41, therefore It is non-circular that the radial section of 41 endoporus of inner disc can also coordinate the installation section 11 to be formed.The external disk 42 abuts the permanent magnet 3, And the space position opposite with multiple air ducts of the positioning seat 2 between the inner disc 41 and the external disk 42, make air-flow can be by the inner disc Space between 41 and the external disk 42 and flow into inside the positioning seat 2.Wherein, the quantity of the rib 43 can be multiple, this is more A rib 43 is annularly connected to the inner disc 41 and the external disk 42 in a row, to promote the structural strength of entire terminal cover 4, makes the end Lid 4 is less yielding.Preferably, multiple rib 43 and multiple connecting plate 23 keep multiple rib 43 complete with respect to position Each air duct W is blocked entirely, the air quantity and airflow smooth degree for flowing into each air duct W can be promoted, help improving radiating effect.

The inner disc 41 can not be coplanar towards the end face of the positioning seat 2 with the external disk 42, keeps each rib 43 outer by this Disk 42 is tilted towards the inner disc 41, a protrusion P is collectively formed by multiple rib 43 and the inner disc 41.Accordingly, the end is assembled When lid 4, the dented space C for penetrating the positioning seat 2 can be aligned by the protrusion P of the end cap 4, operation when end cap 4 is assembled to be promoted Convenience.In addition, the external disk 42 can also be equipped at least one counterweight tank 421 backwards to the end face of the permanent magnet 3（May be, for example, one A annular groove or multiple grooves separately）, with for accommodating counterweight part, reach the smooth rotation degree for promoting the motor rotor And smoothness and other effects.The external disk 42 can then be equipped at least one positioning region 422 towards the end face of the permanent magnet 3, in this When external disk 42 abuts the permanent magnet 3, by the 31 mutual clip of positioning region of the positioning region 422 and the permanent magnet 3 of the external disk 42, So as to preventing the end cap 4 from being rotated again relative to the permanent magnet 3.

The motor rotor may also include an envelope magnet ring 5, and the envelope magnet ring 5 is preferably outer by this when being molded the positioning seat 2 Ring body 22 projects cladding and combines, and to promote the linking steady character of the envelope magnet ring 5 and the positioning seat 2, and simplifies the motor rotor Assembly program.The permanent magnet 3 is linked in the periphery of the envelope magnet ring 5, to provide envelope magnetic to the permanent magnet 3 by the envelope magnet ring 5 Effect.

In addition, the operation ease when positioning seat 2 and the end cap 4 to be assembled to the shaft 1 to be promoted, the present embodiment can Selection makes that the inner ring body 21 and the inner disc 41 are matched with 11 pine of installation section of the shaft 1 respectively or slide fit is combined（That is, keeping this interior The endoporus of ring body 21 and the inner disc 41 is slightly larger than the installation section 11 of the shaft 1）, make assembler can be easily by the inner ring Body 21 and the smooth set of the inner disc 41 are bonded to the installation section 11, and ensure that the inner ring body 21 and the inner disc 41 are not easy to produce because of extruding Raw rhegma.The motor rotor then can also be set there are two fixed ring 6, which may be, for example, copper ring, with by one of fixed 6 close-fitting of ring is spirally connected in conjunction with the installation section 11 of the shaft 1, and abuts the inner ring body 21 relatively adjacent to the end face of the projecting ring section 24, And by another 6 close-fitting of fixed ring or be spirally connected in conjunction with the installation section 11 of the shaft 1, and the inner disc 41 is abutted further away from the inner ring The end face of body 21, according to this by the firm precalculated position being limited in the shaft 1 of the positioning seat 2 and the end cap 4.Alternatively, at it In his embodiment, also can the inner ring body 21 of the positioning seat 2 directly be projected into the precalculated position that cladding is incorporated into the shaft 1, with Further simplify the assembly program of the motor rotor.

By aforementioned structure, when assembling the motor rotor of the utility model, as long as the positioning seat 2 is first combined the shaft 1 Periphery, then the permanent magnet 3 is sheathed on the positioning seat 2, the bulge loop of the positioning seat 2 is abutted by one end of the permanent magnet 3 Portion 24, then the end cap 4 is inserted in the shaft 1, and the other end of the permanent magnet 3 is abutted by the end cap 4, you can complete assembling journey Sequence makes the permanent magnet 3 that can remain attached to the precalculated position in the shaft 1.

Fig. 6 is please referred to, the motor rotor of the utility model can be assembled to an axis of a motor shell block 7 by the shaft 1 Socket part 71 keeps the stator pack 72 that the permanent magnet 3 can be located in assembling in the motor shell block 7 opposite and remains appropriate Feel magnetic air gap；Whereby, which is powered behind generation magnetic field, can drive the motor rotor spinning movement of the utility model.

In conclusion the motor rotor of the utility model, for slim permanent magnet fitting due to the positioning seat is arranged And abut, and an end cap of arranging in pairs or groups again can be by the permanent magnet strong fix, therefore assembly program is very simple；Thus, The motor rotor of the utility model not only using slim permanent magnet but also was easily assembled to, and can have both reduces manufacturing cost, mitigates weight The multi-efficiencies such as amount and promotion packaging efficiency.

Although the utility model is illustrated using above-mentioned preferred embodiment, it is not limited to the utility model Protection domain, any those skilled in the art are within the spirit and scope for not departing from the utility model, relatively above-mentioned implementation Example carries out various variations and still falls within the range that the utility model is protected with modification, and therefore, the scope of protection of the utility model is answered It is subject to what claims were defined.

Claims (16)

1. a kind of motor rotor, which is characterized in that including：

One shaft；

One positioning seat, the positioning seat combine the periphery of the shaft, and there are one projecting ring sections for one end tool of the positioning seat；

One permanent magnet, the permanent magnet are set to the positioning seat, and one end of the permanent magnet abuts the projecting ring section of the positioning seat； And

One end cap, the end cap abut the other end of the permanent magnet.

2. motor rotor as described in claim 1, which is characterized in that there are the positioning seat multiple connecting plates to connect an inner ring Body and an outer ring body, the inner ring body fitting shaft, the projecting ring section are integrally formed the one end for connecting the outer ring body, the permanent magnetic Iron is placed on outside the outer ring body to abut the projecting ring section, between the inner ring body and the outer ring body between any two adjacent connection plates Form an air duct.

3. motor rotor as claimed in claim 2, which is characterized in that multiple connecting plate is inclined to set.

4. motor rotor as claimed in claim 2, which is characterized in that there is the end cap at least one rib to connect an inner disc With an external disk, the inner disc fitting shaft, which abuts the permanent magnet, the space between the inner disc and the external disk with should Multiple air ducts are with respect to position.

5. motor rotor as claimed in claim 4, which is characterized in that the quantity of the rib is multiple, and multiple rib is in ring Shape is connected to the inner disc and the external disk, multiple rib position opposite with multiple connecting plate in a row.

6. motor rotor as claimed in claim 4, which is characterized in that the external disk is equipped at least towards the end face of the permanent magnet One positioning region, the permanent magnet are equipped at least one positioning region, the positioning region of the external disk and the permanent magnet in axial end portion The mutual clip in positioning region.

7. motor rotor as claimed in claim 4, which is characterized in that the external disk is equipped at least backwards to the end face of the permanent magnet One counterweight tank.

8. motor rotor as claimed in claim 4, which is characterized in that the axial height of the inner ring body is less than the axis of the outer ring body To height, to being located in the outer ring body axial range, each connecting plate is formed further away from one end of the projecting ring section towards this inner ring body The inclined inclined-plane of inner ring body, to form a dented space for being oriented to the inner ring body inside the outer ring body；The inner disc with The end face of the external disk towards the positioning seat is not coplanar, each rib by the external disk towards the inner disc tilt, with by multiple ribs and should A protrusion is collectively formed in inner disc, and protrusion contraposition penetrates the dented space.

9. motor rotor as claimed in claim 4, which is characterized in that the shaft set there are one install section, the installation section Smallest radial width be more than the radial width at other positions of shaft, the inner ring body and the inner disc are placed on the installation of the shaft Section.

10. motor rotor as claimed in claim 9, which is characterized in that the inner ring body and the inner disc respectively with the peace of the shaft Dress section pine is matched or slide fit combines, a fixed ring close-fitting or be spirally connected in conjunction with the installation section and abut that the inner ring body is relatively neighbouring should The end face of projecting ring section, another fixed ring close-fitting or is spirally connected in conjunction with the installation section and abuts the inner disc further away from the inner ring body End face.

11. motor rotor as claimed in claim 9, which is characterized in that the inner ring body projects cladding and is incorporated into the shaft.

12. motor rotor as claimed in claim 9, which is characterized in that the radial section of the installation section is in non-circular, this is interior It is non-circular that the radial section of the endoporus of ring body coordinates the installation section to be formed.

13. motor rotor as claimed in claim 9, which is characterized in that the axial height of the inner ring body is more than the installation section The half of axial height.

14. motor rotor as claimed in claim 2, which is characterized in that the motor rotor further includes an envelope magnet ring, the envelope magnetic Ring projects cladding by the outer ring body and combines, which is linked in the periphery of the envelope magnet ring.

15. motor rotor as described in claim 1, which is characterized in that the projecting ring section is equipped with backwards to the end face of the permanent magnet At least one counterweight tank.

16. motor rotor as described in claim 1, which is characterized in that the end face of the projecting ring section towards the permanent magnet is equipped with At least one positioning region, the permanent magnet axial end portion be equipped at least one positioning region, the positioning region of the permanent magnet with should The mutual clip in positioning region of projecting ring section.