CN208337260U - Rotor assembly and motor - Google Patents
Rotor assembly and motor Download PDFInfo
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- CN208337260U CN208337260U CN201821118503.9U CN201821118503U CN208337260U CN 208337260 U CN208337260 U CN 208337260U CN 201821118503 U CN201821118503 U CN 201821118503U CN 208337260 U CN208337260 U CN 208337260U
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Abstract
It includes rotor body that the utility model, which provides a kind of rotor assembly and motor, rotor assembly, and the rotor body has several slit slots；On the section perpendicular to the rotor body axis, the slit slot, along linear extension, makes to form the magnetic flux path parallel with q axis between the adjacent slit slot in the direction perpendicular to d axis.The advantages of the utility model has design rationally, low in cost, and the magnetic flux of q axis can be made more smooth, becomes apparent from d, q axis flux amount difference, and then improves output power and efficiency.
Description
Technical field
The utility model relates to technical field of motors, in particular to a kind of rotor assembly and motor.
Background technique
Across-the-line starting synchronous magnetic resistance motor combines the design feature of induction machine and synchronous magnetic resistance motor, passes through mouse cage sense
Torque should be generated and realize starting, reluctance torque is generated by inductor rotor gap and realizes permanent revolving speed operation, electricity can be passed directly into
Realize starting operation in source.Across-the-line starting synchronous magnetic resistance motor is compared with line start permanent magnet electric motor, without rare earth permanent-magnetic material,
There is no demagnetization problems, and motor cost is low, good reliability；It is high-efficient compared with asynchronous machine motor, invariablenes turning speed.
Traditional synchronous magnetic resistance motor needs driver to be started and controlled operation, at high cost, and control is difficult, and drives
Dynamic device occupies a part of loss, declines entire electric system efficiency.
And in the prior art, the patent of Patent No. CN 1255925C provides a kind of cheap synchronous sense easy in starting up
The direction that magnetic flux easily flows through is arranged in the manufacturing device and manufacturing method of induction motor and synchronous induction motor on rotor
At least a pair of of the slit portion of q axis and the d axis in the direction for being difficult to flow through as magnetic flux at the magnetic pole protrusion at 90 degree the two poles of the earth, Yi Jipei
Multiple slot portions in the peripheral side in aforementioned slots portion are set, fill conductive material in slit portion and aforementioned slot portion.Slit
Portion is made for the shape of straight line, and slot portion along the circumferential direction radially configures at equal intervals.
But in the patent, since slot portion radially configures at equal intervals, so that the flow direction between slot portion hangs down
Straight rotor surface Radial Flow, slot portion hinder the circulation of magnetic flux q axis direction, the especially slot portion closer to d axis, q axis magnetic
Logical obstruction is more obvious, and the circulation of d axis magnetic flux is more smooth, therefore d, q axis flux amount difference are unobvious, and salient pole is than less, causing
Output power and low efficiency.
Utility model content
Reasonable, low-cost rotor assembly and motor are designed the main purpose of the utility model is to provide a kind of,
The magnetic flux of q axis can be made more smooth, d, q axis flux amount difference is made to become apparent from, and then improve output power and efficiency.
The utility model provides a kind of rotor assembly, including rotor body, and the rotor body has several slit slots；
On the section perpendicular to the rotor body axis, the slit slot prolongs in the direction perpendicular to d axis along straight line
It stretches, makes to form the magnetic flux path parallel with q axis between the adjacent slit slot.
More preferably, there are distances between the slit slot and the periphery wall of the rotor body.
More preferably, the institute on the section perpendicular to the rotor body axis, along the extending direction of d axis, positioned at both ends
Stating slit slot is the first slit slot, and conductive magnetic separator is filled in the first slit slot.
More preferably, on the section perpendicular to the rotor body axis, the first slit slot is using d axis as symmetry axis
Zhou duicheng tuxing.
More preferably, the first reinforcing rib is provided in the first slit slot, the both ends of first reinforcing rib are connected to institute
It states on the first slit slot two relative walls vertical with d axis.
More preferably, on the section perpendicular to the rotor body axis, first reinforcing rib is using d axis as symmetry axis
Zhou duicheng tuxing.
More preferably, first reinforcing rib is integrally formed on the rotor body.
More preferably, there is the axis hole coaxial with the rotor body, the slit slot includes second on the rotor body
Slit slot；
On the section perpendicular to the rotor body axis, the second slit slot position is in the first slit slot and institute
It states between axis hole.
More preferably, on the section perpendicular to the rotor body axis, the second slit slot is using d axis as symmetry axis
Zhou duicheng tuxing.
More preferably, there are two the second reinforcing ribs, the both ends of second reinforcing rib to connect for setting in the second slit slot
On the second slit slot two relative walls vertical with d axis, make two second reinforcing ribs by second slit
Slot is separated into the second slit slot a, the second slit slot b that successively arrange along q axis extending direction and the second slit slot c, and described second
Filled with conductive magnetic separator in slit slot a and the second slit slot c.
More preferably, on the section perpendicular to the rotor body axis, two second reinforcing ribs are symmetrical with d axis
Axis is symmetrical.
More preferably, second reinforcing rib is integrally formed on the rotor body.
More preferably, between wherein one the first slit slot and the axis hole, the quantity of the second slit slot is
At least two.
More preferably, the slit slot further includes third slit slot and the 4th slit slot；
The third slit slot and the 4th slit slot are separately positioned on the two sides of the axis hole, and the third is narrow
Slot and the 4th slit slot are symmetrical as symmetry axis using d axis.
More preferably, third reinforcing rib is provided in the third slit slot, the both ends of the third reinforcing rib are connected to institute
It states on third slit slot two relative walls vertical with d axis, the third slit slot is separated into far from the axis hole
Filled with conductive magnetic separator in third slit the slot b, the third slit slot a of third slit slot a and the close axis hole；
The 4th reinforcing rib is provided in the 4th slit slot, it is narrow that the both ends of the 4th reinforcing rib are connected to the described 4th
On slot two relative walls vertical with d axis, the 4th slit slot is separated into the 4th slit far from the axis hole
Filled with conductive magnetic separator in 4th slit slot b, the 4th slit slot a of slot a and the close axis hole.
More preferably, on the section perpendicular to the rotor body axis, the third reinforcing rib and the described 4th is reinforced
Muscle is symmetrical as symmetry axis using d axis.
More preferably, the third reinforcing rib and/or the 4th reinforcing rib are integrally formed on the rotor body.
More preferably, the quantity of the third slit slot is at least two, the quantity and the third of the 4th slit slot
The quantity of slit slot is equal, and corresponds.
More preferably, the section vertical with d axis is provided on the periphery wall of the rotor body, perpendicular to the rotor
On the section of body axis, the angle of the both ends of the section and the rotor body line of centres is θ, wherein 0.05 τ≤θ≤
0.2 τ, wherein τ is pole span angle, i.e. τ=180 °/p, p are number of pole-pairs.
It more preferably, further include conducting ring；
The end of the rotor body is arranged in the conducting ring, when the slit slot for being located at both ends is the first slit
Slot, when in the first slit slot filled with conductive magnetic separator, the conducting ring can be overlayed in the first slit slot
Conductive magnetic separator on.
More preferably, when the slit slot includes the second slit slot, and in the second slit slot setting there are two second
Reinforcing rib, two second reinforcing ribs the second slit slot is separated into successively arrange along q axis extending direction it is second narrow
Conduction is filled in slot a, the second slit slot b and the second slit slot c, the second slit slot a and the second slit slot c
When magnetic separator, the conducting ring can overlay the conduction in the second slit slot a and the second slit slot c every magnetic material
On material.
More preferably, the conducting ring has heat release hole；
In the projection along the rotor body axis direction, the second slit slot b is located within the heat release hole.
More preferably, the slit slot further includes third slit slot and the 4th slit slot, and is set in the third slit slot
It is equipped with third reinforcing rib, and the third slit slot is separated into third slit slot a and the close axis far from the axis hole
Filled with conductive magnetic separator in third slit the slot b, the third slit slot a in hole, the is provided in the 4th slit slot
Four reinforcing ribs, and the 4th slit slot is separated into the 4th slit slot a far from the axis hole and close to the of the axis hole
Filled with conductive magnetic separator in four slit slot b, the 4th slit slot a, the conducting ring is overlayed in the third slit slot a
In the conductive magnetic separator in the 4th slit slot a.
More preferably, in the projection along the rotor body axis direction, the third slit slot b and the 4th slit slot b
It is respectively positioned within the heat release hole.
The another aspect of the utility model provides a kind of motor, the rotor assembly including any of the above technical characteristic.
It more preferably, further include stator；
The stator has mounting hole, and the rotor body in the rotor assembly is threaded through in the mounting hole, and
It is coaxial with the mounting hole, and along the rotor body radially, the outer wall of the rotor body and the mounting hole
The distance between inner wall be H；
When the rotor body has first reinforcing rib, on the section perpendicular to the rotor body axis,
The width of first reinforcing rib is L1, and H≤L1≤2H.
More preferably, when the rotor body has second reinforcing rib, perpendicular to the rotor body axis
On section, the width of second reinforcing rib is L2, and H≤L2≤2H.
More preferably, when the rotor body has the third reinforcing rib, perpendicular to the rotor body axis
On section, the width of the third reinforcing rib is L3, and H≤L3≤2H.
The rotor assembly of the offer of the utility model, it is described using on the section perpendicular to the rotor body axis
Slit slot, along linear extension, keeps the magnetic flux that formation is parallel with q axis between the adjacent slit slot logical in the direction perpendicular to d axis
The technical solution in road, not only design is rationally, low in cost, and the magnetic flux of q axis can be made more smooth, makes d, q axis flux amount
Difference becomes apparent from, and then improves output power and efficiency.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of one embodiment of the utility model rotor assembly；
Fig. 2 is the half-section diagram of the rotor body in Fig. 1.
In figure: 1, rotor body；11, slit slot；12, magnetic flux path；13, the first slit slot；131, the first reinforcing rib；
14, axis hole；15, the second slit slot；151, the second reinforcing rib；152, the second slit slot a；153, the second slit slot b；154, second
Slit slot c；16, third slit slot；161, third reinforcing rib；162, third slit slot a；163, third slit slot b；17, the 4th
Slit slot；171, the 4th reinforcing rib；172, the 4th slit slot a；173, the 4th slit slot b；18, section；2, conducting ring；21, it dissipates
Hot hole.
Specific embodiment
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
It is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to the utility model
The range of protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.
As shown in Figure 1, a kind of rotor assembly, including rotor body 1, rotor body 1 has several slit slots 11, vertical
In on the section of 1 axis of rotor body, slit slot 11, along linear extension, makes adjacent slit slot 11 in the direction perpendicular to d axis
Between form the magnetic flux path 12 parallel with q axis.So compared with the existing technology, convenient for magnetic flux along the without hindrance flowing of q axis direction；
And magnetic resistance barrier is formed in d axis direction, d axis direction magnetic flux flows are hindered, the difference of dq axis magnetic flux is increased, and then increases magnetic resistance and turns
Square promotes electric efficiency and torque capacity.
Specifically, as shown in Fig. 2, on the section perpendicular to 1 axis of rotor body, along the extending direction of d axis, it is located at two
The slit slot 11 at end is the first slit slot 13, and conductive magnetic separator is filled in the first slit slot 13, wherein conductive magnetic separator
It can be aluminum or aluminum alloy.In actual fabrication, there are distances for the periphery wall of the first slit slot 13 and rotor body 1, in this way to
When first slit slot 13 fills conductive magnetic separator, conductive magnetic separator will not be protruded from the periphery wall of rotor body 1, that is, filled out
When charging conductive magnetic separator, does not need again to process the periphery wall of rotor body 1, thereby reduce cost of manufacture.Compared with
Excellently, on the section perpendicular to 1 axis of rotor body, the first slit slot 13 is using d axis as the zhou duicheng tuxing of symmetry axis.
Further, as shown in Fig. 2, being provided with the first reinforcing rib 131 in the first slit slot 13, the first reinforcing rib 131
Both ends are connected on the first slit slot 13 two relative walls vertical with d axis.It can be improved the intensity of rotor body in this way, it is excellent
Selection of land, on the section perpendicular to 1 axis of rotor body, the first reinforcing rib 131 is using d axis as the zhou duicheng tuxing of symmetry axis.
In actual fabrication, the first reinforcing rib 131 can be integrally formed on rotor body 1, it is not limited to this.
As an embodiment, as shown in Fig. 2, having the axis hole 14 coaxial with rotor body 1 on rotor body 1,
Slit slot 11 includes the second slit slot 15, and on the section perpendicular to 1 axis of rotor body, it is narrow that the second slit slot 15 is located at first
Between slot 13 and axis hole 14.Preferably, on the section perpendicular to 1 axis of rotor body, the second slit slot 15 is to be with d axis
The zhou duicheng tuxing of symmetry axis.Specifically, there are two the second reinforcing rib 151, the second reinforcing ribs 151 for setting in the second slit slot 15
Both ends be connected on the second slit slot 15 two relative walls vertical with d axis, keep two the second reinforcing ribs 151 narrow by second
Slot 15 is separated into the second slit slot a152, the second slit slot b153 and the second slit slot successively arranged along q axis extending direction
Conductive magnetic separator is filled in c154, the second slit slot a152 and the second slit slot c154.Rotor can either be improved in this way
The intensity of ontology 1, while the second slit slot a152, the second slit slot c154 and the first slit slot 13 can also be made along rotor body
1 be circumferentially arranged, makes the conductive magnetic separator of its inside be connected to form mouse cage, further improves the asynchronous starting energy of motor
Power.Preferably, on the section perpendicular to 1 axis of rotor body, two the second reinforcing ribs 151 are mutually right as symmetry axis using d axis
Claim, can make the second slit slot a152 and the second slit slot c154 symmetrical with d axis symmetry axis in this way.In actual fabrication
In, the second reinforcing rib 151 is integrally formed on rotor body 1.In actual fabrication, as shown in Figure 2, one first wherein
Between slit slot 13 and axis hole 14, the quantity of the second slit slot 15 is at least two.Magnetic that in this way can further to d axis direction
Logical formed hinders, and then becomes apparent from d, q axis flux amount difference.In actual fabrication, identical as the first slit slot 13 second is narrow
There are distances for the periphery wall of slot 15 and rotor body 1, lead in this way to the second slit slot a152 and the second slit slot c154 filling
When electric magnetic separator, conductive magnetic separator will not be protruded from the periphery wall of rotor body 1, that is, fill conductive magnetic separator
When, it does not need again to process the periphery wall of rotor body 1, thereby reduces cost of manufacture.
As a kind of section's embodiment, as shown in Fig. 2, slit slot 11 further includes third slit slot 16 and the 4th slit slot
17, third slit slot 16 and the 4th slit slot 17 are separately positioned on the two sides of axis hole 14, and third slit slot 16 and the 4th is narrow
Slot 17 is symmetrical as symmetry axis using d axis.Specifically, third reinforcing rib 161 is provided in third slit slot 16, third is reinforced
The both ends of muscle 161 are connected on two relative walls vertical with d axis of third slit slot 16, and third slit slot 16 is separated into
It is filled in third slit slot a162 far from the axis hole 14 and third slit slot b163 close to axis hole 14, third slit slot a162
Conductive magnetic separator.It is provided with the 4th reinforcing rib 171 in the 4th slit slot 17 simultaneously, the both ends of the 4th reinforcing rib 171 are connected to
On 4th slit slot 17, two relative walls vertical with d axis, the 4th slit slot 17 is separated into the 4th far from axis hole 14
Filled with conductive magnetic separator in 4th slit slot b173, the 4th slit slot a172 of slit slot a172 and close axis hole 14.This
Sample third slit slot a162, the 4th slit slot a172, the second slit slot a152,13 edge the second slit slot c154 and the first slit slot
Rotor body 1 is circumferentially arranged, its internal conductive magnetic separator is connected to form mouse cage in actual use, further increases electricity
The asynchronous starting ability of machine.Periphery wall in actual fabrication, with third slit slot 16 and the 4th slit slot 17 and rotor body 1
There are distances, when filling conductive magnetic separator to third slit slot a162 and the 4th slit slot a172 in this way, conductive magnetic separator
It will not protrude from the periphery wall of rotor body 1, i.e., when having filled conductive magnetic separator, not need again to the outer of rotor body 1
Peripheral wall is processed, and cost of manufacture is thereby reduced.
Specifically, on the section perpendicular to 1 axis of rotor body, third reinforcing rib 161 and the 4th reinforcing rib 171 are with d
Axis is that symmetry axis is symmetrical.In actual fabrication, third reinforcing rib 161 and/or the 4th reinforcing rib 171 are integrally formed in rotor
On ontology 1, it is not limited to this.Further, the quantity of third slit slot 16 is at least two, the number of the 4th slit slot 17
Amount is equal with the quantity of third slit slot 16, and corresponds.
As an embodiment, as shown in Fig. 2, being provided with vertical with d axis cut on the periphery wall of rotor body 1
Face 18, on the section perpendicular to 1 axis of rotor body, the both ends of section 18 and the angle of 1 line of centres of rotor body are θ,
The wherein τ of 0.05 τ≤θ≤0.2, wherein τ is pole span angle, i.e. τ=180 °/p, p are number of pole-pairs.In this way when rotor body 1 and stator
With the use of when, the air gap between 18 position of section and stator becomes larger, and air-gap reluctance increases, so that magnetic flux is not easy to circulate, reduces
D axis enters stator herein, reduces d axis magnetic flux.
As an embodiment, as shown in Figure 1, further including conducting ring 2.The end of rotor body 1 is arranged in conducting ring 2
Portion, when the slit slot 11 positioned at both ends is the first slit slot 13, when being filled with conductive magnetic separator in the first slit slot 13, conduction
Ring 2 can overlay in the conductive magnetic separator in the first slit slot 13.When slit slot 11 includes the second slit slot 15, and the
There are two the second reinforcing ribs 151, two the second reinforcing ribs 151, and second slit slot 15 is separated into along q for setting in two slit slots 15
The second slit slot a152, the second slit slot b153 and the second slit slot c154 that axis extending direction is successively arranged, the second slit slot
When being filled with conductive magnetic separator in a152 and the second slit slot c154, conducting ring 2 can be overlayed in the second slit slot a152
In the conductive magnetic separator in the second slit slot c154.More preferably, slit slot 11 further includes that third slit slot 16 and the 4th is narrow
Slot 17, and third reinforcing rib 161 is provided in third slit slot 16, and third slit slot 16 is separated into far from axis hole 14
Third slit slot a162 and third slit slot b163 close to axis hole 14, filled with conduction every magnetic material in third slit slot a162
Material is provided with the 4th reinforcing rib 171 in the 4th slit slot 17, and it is narrow that the 4th slit slot 17 is separated into the far from axis hole 14 the 4th
It is conductive filled with conductive magnetic separator in 4th slit slot b173, the 4th slit slot a172 of slot a172 and close axis hole 14
Ring 2 overlays in the conductive magnetic separator in third slit slot a162 and the 4th slit slot a172.Conducting ring 2 can be passed through in this way
It will be in the first slit slot 13, the second slit slot a152, the second slit slot c154, third slit slot a162 and the 4th slit slot a172
Conductive magnetic separator conducting, formed mouse cage, realize the asynchronous starting of motor.
Specifically, as shown in Figure 1, conducting ring 2 has heat release hole 21, in the projection along 1 axis direction of rotor body, the
Two slit slot b153 are located within heat release hole 21.Further, in the projection along 1 axis direction of rotor body, third slit
Slot b163 and the 4th slit slot b173 are respectively positioned within heat release hole 21.It in this way can be by circulating in the second slit slot b153, third
Slit slot b163 and the 4th slit slot b173 radiate to rotor body 1.
To realize purpose of utility model, the another aspect of the utility model provides a kind of motor, including above embodiments are retouched
The rotor assembly stated.It specifically, further include stator (not shown go out)；Stator has mounting hole, the rotor body 1 in rotor assembly
Be threaded through in mounting hole, and coaxial with mounting hole, and along rotor body 1 radially, the outer wall of rotor body 1 and installation
The distance between the inner wall in hole is H.When rotor body 1 has the first reinforcing rib 131, perpendicular to 1 axis of rotor body
On section, the width of the first reinforcing rib 131 is L1, and H≤L1≤2H.When rotor body 1 has the second reinforcing rib 151,
On the section perpendicular to 1 axis of rotor body, the width of the second reinforcing rib 151 is L2, and H≤L1≤2H.When rotor sheet
When body 1 has third reinforcing rib 161, on the section perpendicular to 1 axis of rotor body, the width of third reinforcing rib 161 is L3,
And H≤L1≤2H.The first reinforcing rib 131, the second reinforcing rib 151, third reinforcing rib 161 and the 4th can be reduced in this way to add
Magnetic flux (leakage field) at strengthening tendons 171, additionally it is possible to guarantee the mechanical strength of rotor body 1, just face rotor body 1 deforms.
Above embodiments make the utility model have design rationally, low in cost, and the magnetic flux of q axis can be made more suitable
Freely, the advantages of becoming apparent from d, q axis flux amount difference, and then improving output power and efficiency.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of the claims of the utility model.
Claims (28)
1. a kind of rotor assembly, it is characterised in that:
Including rotor body (1), the rotor body (1) has several slit slots (11)；
On the section perpendicular to the rotor body (1) axis, the slit slot (11) is in the direction perpendicular to d axis along straight line
Extend, makes to form the magnetic flux path (12) parallel with q axis between the adjacent slit slot (11).
2. rotor assembly according to claim 1, it is characterised in that:
There are distances between the slit slot (11) and the periphery wall of the rotor body (1).
3. rotor assembly according to claim 2, it is characterised in that:
The slit slot on the section perpendicular to the rotor body (1) axis, along the extending direction of d axis, positioned at both ends
(11) it is the first slit slot (13), conductive magnetic separator is filled in the first slit slot (13).
4. rotor assembly according to claim 3, it is characterised in that:
On the section perpendicular to the rotor body (1) axis, the first slit slot (13) is using d axis as the axis of symmetry axis
Symmetric figure.
5. rotor assembly according to claim 4, it is characterised in that:
It is provided with the first reinforcing rib (131) in the first slit slot (13), the both ends of first reinforcing rib (131) are connected to
On the first slit slot (13), two relative walls vertical with d axis.
6. rotor assembly according to claim 5, it is characterised in that:
On the section perpendicular to the rotor body (1) axis, first reinforcing rib (131) is using d axis as symmetry axis
Zhou duicheng tuxing.
7. rotor assembly according to claim 5, it is characterised in that:
First reinforcing rib (131) is integrally formed on the rotor body (1).
8. rotor assembly according to claim 3, it is characterised in that:
There is the axis hole (14) coaxial with the rotor body (1), the slit slot (11) includes the on the rotor body (1)
Two slit slots (15)；
On the section perpendicular to the rotor body (1) axis, the second slit slot (15) is located at the first slit slot
(13) between the axis hole (14).
9. rotor assembly according to claim 8, it is characterised in that:
On the section perpendicular to the rotor body (1) axis, the second slit slot (15) is using d axis as the axis of symmetry axis
Symmetric figure.
10. rotor assembly according to claim 9, it is characterised in that
There are two the second reinforcing rib (151), the both ends of second reinforcing rib (151) to connect for setting in the second slit slot (15)
It connects on the second slit slot (15) two relative walls vertical with d axis, makes two second reinforcing ribs (151) by institute
It states the second slit slot (15) and is separated into the second slit slot a (152), the second slit slot b successively to arrange along q axis extending direction
(153) and the second slit slot c (154) it, is filled in the second slit slot a (152) and the second slit slot c (154)
Conductive magnetic separator.
11. rotor assembly according to claim 10, it is characterised in that:
On the section perpendicular to the rotor body (1) axis, two second reinforcing ribs (151) are using d axis as symmetry axis
Symmetrically.
12. rotor assembly according to claim 9, it is characterised in that:
Second reinforcing rib (151) is integrally formed on the rotor body (1).
13. rotor assembly according to claim 8, it is characterised in that:
Wherein between the first slit slot (13) and the axis hole (14), the quantity of the second slit slot (15) is
At least two.
14. rotor assembly according to claim 8, it is characterised in that:
The slit slot (11) further includes third slit slot (16) and the 4th slit slot (17)；
The third slit slot (16) and the 4th slit slot (17) are separately positioned on the two sides of the axis hole (14), and institute
It states third slit slot (16) and the 4th slit slot (17) is symmetrical as symmetry axis using d axis.
15. rotor assembly according to claim 14, it is characterised in that:
It is provided with third reinforcing rib (161) in the third slit slot (16), the both ends of the third reinforcing rib (161) are connected to
On the third slit slot (16) two relative walls vertical with d axis, the third slit slot (16) is separated into separate
The third slit slot b (163) of the third slit slot a (162) of the axis hole (14) and close the axis hole (14), the third are narrow
Filled with conductive magnetic separator in slot a (162)；
It is provided with the 4th reinforcing rib (171) in the 4th slit slot (17), the both ends of the 4th reinforcing rib (171) are connected to
On the 4th slit slot (17), two relative walls vertical with d axis, the 4th slit slot (17) is separated into separate
The 4th slit slot b (173) of 4th slit slot a (172) of the axis hole (14) and close the axis hole (14), the described 4th is narrow
Filled with conductive magnetic separator in slot a (172).
16. rotor assembly according to claim 15, it is characterised in that:
On the section perpendicular to the rotor body (1) axis, the third reinforcing rib (161) and the 4th reinforcing rib
(171) symmetrical as symmetry axis using d axis.
17. rotor assembly according to claim 15, it is characterised in that:
The third reinforcing rib (161) and/or the 4th reinforcing rib (171) are integrally formed on the rotor body (1).
18. rotor assembly according to claim 14, it is characterised in that:
The quantity of the third slit slot (16) is at least two, the quantity of the 4th slit slot (17) and the third slit
The quantity of slot (16) is equal, and corresponds.
19. according to claim 1 to rotor assembly described in 18 any one, it is characterised in that:
The section vertical with d axis (18) are provided on the periphery wall of the rotor body (1), perpendicular to the rotor body
(1) on the section of axis, the both ends of the section (18) and the angle of the rotor body (1) line of centres are θ, wherein 0.05
The τ of τ≤θ≤0.2, wherein τ is pole span angle, i.e. τ=180 °/p, p are number of pole-pairs.
20. according to claim 1 to rotor assembly described in 18 any one, it is characterised in that:
It further include conducting ring (2)；
Conducting ring (2) setting is in the end of the rotor body (1), when the slit slot (11) for being located at both ends is first
Slit slot (13), when in the first slit slot (13) filled with conductive magnetic separator, the conducting ring (2) can be overlayed in institute
It states in the conductive magnetic separator in the first slit slot (13).
21. rotor assembly according to claim 20, it is characterised in that:
When the slit slot (11) includes the second slit slot (15), and in the second slit slot (15) setting there are two second
Reinforcing rib (151), two second reinforcing ribs (151) by the second slit slot (15) be separated into along q axis extending direction according to
The second slit slot a (152), the second slit slot b (153) and the second slit slot c (154) of secondary arrangement, the second slit slot a
(152) and in the second slit slot c (154) when being filled with conductive magnetic separator, the conducting ring (2) can be overlayed in institute
It states in the conductive magnetic separator in the second slit slot a (152) and the second slit slot c (154).
22. rotor assembly according to claim 21, it is characterised in that:
The conducting ring (2) has heat release hole (21),
In the projection along the rotor body (1) axis direction, the second slit slot b (153) is located at the heat release hole
(21) within.
23. rotor assembly according to claim 22, it is characterised in that:
The slit slot (11) further includes third slit slot (16) and the 4th slit slot (17), and the third slit slot (16)
It is inside provided with third reinforcing rib (161), and the third that the third slit slot (16) is separated into separate the axis hole (14) is narrow
The third slit slot b (163) of slot a (162) and close the axis hole (14), interior be filled with of the third slit slot a (162) are led
Electric magnetic separator, the 4th slit slot (17) is interior to be provided with the 4th reinforcing rib (171), and the 4th slit slot (17) is divided
It is divided into the 4th slit slot a (172) far from the axis hole (14) and the 4th slit slot b (173) close to the axis hole (14), institute
It states filled with conductive magnetic separator in the 4th slit slot a (172), the conducting ring (2) overlays in the third slit slot a
(162) and in the conductive magnetic separator in the 4th slit slot a (172).
24. rotor assembly according to claim 23, it is characterised in that:
In the projection along the rotor body (1) axis direction, the third slit slot b (163) and the 4th slit slot b
(173) it is respectively positioned within the heat release hole (21).
25. a kind of motor, it is characterised in that:
Including rotor assembly described in claim 1 to 24 any one.
26. motor according to claim 25, it is characterised in that:
It further include stator；
The stator has mounting hole, and the rotor body (1) (1) in the rotor assembly is threaded through in the mounting hole,
And it is coaxial with the mounting hole, and along the rotor body (1) (1) radially, the rotor body (1) (1) it is outer
The distance between inner wall of wall and the mounting hole is H；
When the rotor body (1) has the first reinforcing rib (131), perpendicular to the rotor body (1) axis
On section, the width of first reinforcing rib (131) is L1, and H≤L1≤2H.
27. motor according to claim 26, it is characterised in that:
When the rotor body (1) has the second reinforcing rib (151), perpendicular to the rotor body (1) axis
On section, the width of second reinforcing rib (151) is L2, and H≤L2≤2H.
28. motor according to claim 26, it is characterised in that:
When the rotor body (1) has third reinforcing rib (161), perpendicular to the rotor body (1) axis
On section, the width of the third reinforcing rib (161) is L3, and H≤L3≤2H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118503.9U CN208337260U (en) | 2018-07-13 | 2018-07-13 | Rotor assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118503.9U CN208337260U (en) | 2018-07-13 | 2018-07-13 | Rotor assembly and motor |
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| Publication Number | Publication Date |
|---|---|
| CN208337260U true CN208337260U (en) | 2019-01-04 |
Family
ID=64784662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821118503.9U Active CN208337260U (en) | 2018-07-13 | 2018-07-13 | Rotor assembly and motor |
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| Country | Link |
|---|---|
| CN (1) | CN208337260U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711968A (en) * | 2018-07-13 | 2018-10-26 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
| CN110556946A (en) * | 2019-10-12 | 2019-12-10 | 哈尔滨理工大学 | Permanent magnet auxiliary synchronous reluctance motor rotor device |
| CN112653265A (en) * | 2020-12-17 | 2021-04-13 | 珠海格力电器股份有限公司 | Rotor structure, motor and rotor machining method |
-
2018
- 2018-07-13 CN CN201821118503.9U patent/CN208337260U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711968A (en) * | 2018-07-13 | 2018-10-26 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
| CN110556946A (en) * | 2019-10-12 | 2019-12-10 | 哈尔滨理工大学 | Permanent magnet auxiliary synchronous reluctance motor rotor device |
| CN112653265A (en) * | 2020-12-17 | 2021-04-13 | 珠海格力电器股份有限公司 | Rotor structure, motor and rotor machining method |
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