CN208835855U - Rotor and magneto - Google Patents
Rotor and magneto Download PDFInfo
- Publication number
- CN208835855U CN208835855U CN201821326906.2U CN201821326906U CN208835855U CN 208835855 U CN208835855 U CN 208835855U CN 201821326906 U CN201821326906 U CN 201821326906U CN 208835855 U CN208835855 U CN 208835855U
- Authority
- CN
- China
- Prior art keywords
- rotor
- bore
- permanent magnet
- magnet
- isolation tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of rotor and magneto.The rotor includes rotor core (1), rotor core (1) is circumferentially arranged multiple permanent magnet troughs (2), permanent magnet (3) are provided in permanent magnet trough (2), magnet isolation tank (4) are provided on the inside of permanent magnet trough (2), it is arranged at intervals between two adjacent magnet isolation tanks (4) every bore (5), magnet isolation tank (4) and the magnetic bridge (6) that vertical bar shape is formed between bore (5), in default angle between magnetic bridge (6) and pole center line.Rotor according to the present utility model can effectively improve magnetism isolating effect, reduce leakage field on the inside of rotor, promote the saturation degree that magnetizes of rotor, promote motor performance.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of rotor and magneto.
Background technique
The motor of the tangential magnetization configuration of permanent magnet can be produced due to having " poly- magnetic " effect compared with permanent magnet diametrical magnetization motor
Raw higher air gap flux density is applied more and more so that motor has biggish torque/electric current ratio and torque/volume ratio
In occasions such as servo-system, electric propulsion, office automation, household electrical appliance.
For the tangential permanent magnet motor of the prior art since rotor permanent magnet is radial arrangement, permanent magnet is a part of buried in rotor
External magnetic field is applied on rotor by inside, and when magnetizing to rotor permanent magnet, magnetism guiding access to magnetize on the inside of permanent magnet
Magnetic field hardly enters part of the rotor close to shaft, and permanent magnet can not magnetize close to the part of shaft reaches saturation state, is easy
Lead to that motor performance declines or even permanent magnet loss of excitation, motor can not operate.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of rotor and magneto, Neng Gouyou
Effect improves magnetism isolating effect, reduces leakage field on the inside of rotor, promotes the saturation degree that magnetizes of rotor, promotes motor performance.
To solve the above-mentioned problems, the utility model provides a kind of rotor, including rotor core, and rotor core is along week
To multiple permanent magnet troughs are provided with, it is provided with permanent magnet in permanent magnet trough, magnet isolation tank is provided on the inside of permanent magnet trough, it is adjacent
Be arranged at intervals between two magnet isolation tanks every bore, magnet isolation tank and between bore formed vertical bar shape magnetic bridge, magnetic bridge with
In default angle between pole center line.
Preferably, along the direction of radial ecto-entad, the width of magnet isolation tank successively decreases, and is incremented by every the width of bore.
Preferably, in the central axial section perpendicular to rotor core, magnet isolation tank is connected to permanent magnet trough, and every magnetic
The width of slot is less than the width of permanent magnet trough.
Preferably, in the central axial section perpendicular to rotor core, magnet isolation tank with every the opposite side of bore
Angle between the radial outside edge of magnet isolation tank is B, and the angle between the bottom edge of permanent magnet and the side of permanent magnet is C, B/C
Ratio meet following relationship:
0.4≥B/C≥0.18。
Preferably, in the section perpendicular to the central axis of rotor core, width is equal everywhere in magnetic bridge, magnetic bridge
Width be N, the width of motor gas-gap is δ, and the ratio of N/ δ meets following relationship:
1.5≥N/δ≥1。
Preferably, in the section perpendicular to the central axis of rotor core, magnet isolation tank on rotor radial direction most
Long length is L, and length of the permanent magnet on rotor radial direction is H, and the ratio of L/H meets following relationship:
0.16≥L/H≥0.03。
Preferably, in the section perpendicular to the central axis of rotor core, every the bottom edge of bore away from rotor iron
The direction indent of the central axis of core.
Preferably, every the bottom edge of bore be it is arc-shaped, the center of circle on bottom edge is located on central axis.
Preferably, every the bottom edge of bore be broken line.
Preferably, bottom edge includes first straight line section and second straight line section, and first straight line section is connected with second straight line section, and shape
At the apex angle of wedge angle or rounding off with the first vertex.
Preferably, bottom edge includes first straight line section, second straight line section and third straightway, first straight line section and second straight line
Section extends away from the direction of the central axis of rotor core, and third straightway is connected to first straight line section and second straight line section
Vertex between.
Preferably, in the section perpendicular to the central axis of rotor core, every the bottom edge of bore be the 4th straightway.
It preferably, further include the first side and second side being oppositely arranged every bore, first side and second side exist
Top crosses to form the apex angle of wedge angle or rounding off with the second vertex.
Preferably, every the first side and second side that bore further includes top margin and is oppositely arranged, the both ends difference of top margin
It is connected with the vertex of first side and second side.
Preferably, the length of top margin is M, and M is greater than the 2 times or more of magnetic bridge width.
Preferably, magnet isolation tank is triangle or trapezoidal；And/or every bore be triangle or trapezoidal.
Preferably, when the bottom edge indent of bore, minimum range of second vertex distance between the bottom edge of bore is K,
The maximum length of the radial direction of magnet isolation tank is L, and the ratio of K/L meets following relationship:
1.5≥K/L≥0.8。
Preferably, magnet isolation tank is trapezoidal, and magnet isolation tank is E, permanent magnet close to the bottom edge length of the central axis of rotor core
Width be F, the ratio of E/F meets following relationship:
0.5≥E/F≥0.3。
Preferably, the peripheral side of rotor core is arranged with non-magnetic fastening sheath.
Preferably, magnet isolation tank and/or every being provided with non-magnetic reinforcing rod in bore.
Preferably, the outer surface of reinforcing rod is in contact or the shape of reinforcing rod and magnet isolation tank with the inner surface of magnet isolation tank
Shape matches；And/or
The outer surface of reinforcing rod is in contact with the inner surface every bore or the shape of reinforcing rod and shape phase every bore
Match.
Preferably, magnet isolation tank and/or every being filled with un-conducted magnetic material in bore.
Preferably, it is equipped with permanent magnet in each permanent magnet trough, permanent magnet tangentially magnetizes, two adjacent permanent magnet polarities
Repel each other setting.
Another aspect according to the present utility model provides a kind of magneto, including rotor, which is
Above-mentioned rotor.
Rotor provided by the utility model, including rotor core, rotor core is circumferentially arranged multiple permanent magnets
Slot is provided with permanent magnet in permanent magnet trough, magnet isolation tank is provided on the inside of permanent magnet trough, is spaced between two adjacent magnet isolation tanks
It is provided with every bore, magnet isolation tank and is formed between bore the magnetic bridge of vertical bar shape, in pre- between magnetic bridge and pole center line
If angle.By being formed between pole center line in magnet isolation tank and between bore in the magnetic bridge of default angle, Neng Gouti
The magnetic resistance of magnetic circuit on the inside of high permanent magnet, improves magnetism isolating effect, reduces leakage field on the inside of tangential permanent magnetic motor, promotes rotor permanent magnet
The saturation degree that magnetizes, promoted motor efficiency and anti-demagnetization capability, promoted motor performance, reduce motor cost.
Detailed description of the invention
Fig. 1 is the dimensional structure schematic diagram of the rotor of the utility model embodiment；
Fig. 2 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 3 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 4 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 5 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 6 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 7 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 8 is the dimensional structure schematic diagram of the rotor of another embodiment of the utility model；
Fig. 9 is the magnetic structure schematic diagram of the rotor of the utility model embodiment；
Figure 10 is the structural schematic diagram of the rotor of another embodiment of the utility model；
Figure 11 is the structural schematic diagram of the rotor of another embodiment of the utility model；
Figure 12 is the structural schematic diagram of the rotor of another embodiment of the utility model；
Figure 13 is variation relation curve synoptic diagram of the utility model magnetic linkage with N/ δ.
Appended drawing reference indicates are as follows:
1, rotor core；2, permanent magnet trough；3, permanent magnet；4, magnet isolation tank；5, every bore；6, magnetic bridge；7, shaft hole；8,
Fastening sheath；9, reinforcing rod；10, it is open；11, first straight line section；12, second straight line section；13, third straightway；14, the 4th is straight
Line segment；15, top margin；16, first side；17, second side.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to 13, embodiment according to the present utility model, rotor includes rotor core 1, rotor
Iron core 1 is circumferentially arranged multiple permanent magnet troughs 2, permanent magnet 3 is provided in permanent magnet trough 2, the inside of permanent magnet trough 2 is provided with
Magnet isolation tank 4 is arranged at intervals between two adjacent magnet isolation tanks 4 every bore 5, magnet isolation tank 4 and forms between bore 5 vertical bar shape
Magnetic bridge 6, in default angle between magnetic bridge 6 and pole center line.Preferably, permanent magnetism is equipped in each permanent magnet trough 2
Body 3, permanent magnet 3 tangentially magnetize, adjacent two 3 polar repulsions of permanent magnet setting.
By being formed between pole center line in magnet isolation tank 4 and between bore 5 in the magnetic bridge 6 of default angle, subtract
The width of small 4 two sides of magnet isolation tank increases the area every bore 5, can be improved the magnetic resistance of magnetic circuit on the inside of permanent magnet, improves and imitates every magnetic
Fruit reduces leakage field on the inside of tangential permanent magnetic motor, promotes the saturation degree that magnetizes of rotor permanent magnet, promotes the efficiency of motor and resists and moves back
Magnetic energy power promotes motor performance, reduces motor cost.
In the present embodiment, permanent magnet 3 is even along circumferential direction is distributed on rotor core 1, and the quantity of permanent magnet 3 is N
A, wherein N is the even number more than or equal to 4, and each permanent magnet 3 is being positioned radially along rotor core, and permanent magnet 3 is that edge is cut
To magnetization, the adjacent polarity having the same of two permanent magnets 3 is oppositely arranged namely two adjacent permanent magnets are in circumferential direction
On, it is identical to be separated by opposite side polarity.There is shaft hole 7 on the inside of rotor core 1, permanent magnet trough 2 is inside close to the diameter of shaft hole 7
Side is known as the inside of permanent magnet trough 2, and the outside of permanent magnet trough 2 is known as close to the radial outside of rotor outer circle, and rotor core 1 is one
Body formula structure has a dowel between permanent magnet trough inside and shaft hole 7.
Magnet isolation tank 4 is radially bottom close to the side of shaft hole 7, and the side for being radially away from shaft hole 7 is top, every
Bore 5 is radially bottom close to the side of shaft hole 7, and the side for being radially away from shaft hole 7 is top.That is, magnet isolation tank 4
Radial inside edge be magnet isolation tank 4 bottom edge, the radial outside edge of magnet isolation tank 4 is top margin, every the radial inside edge of bore 5 be bottom
Side, every bore 5 radial outside edge be top margin.
Opening 10 is offered far from the radial outside of shaft hole 7 in permanent magnet trough 2, the opening 10 is from permanent magnet trough 2 along diameter
To rotor core 1 is run through outward, the leakage field of 3 radial outside of permanent magnet can be further decreased, improves air gap flux density, improves motor
Efficiency.
Magnet isolation tank 4 and one section of magnetic bridge 6 of formation between bore 5, tangential motor is when magnetizing, 2 bottom two of permanent magnet trough
The rotor core of side constitutes magnetism guiding access, and the magnetic line of force is closed from this magnetism guiding access, so that on the inside of magnetic line of force permanent magnet more difficult to get access
Bottom position forms leakage magnetic flux Φ σ, and such magnetic shielding structure is arranged in permanent magnet inside bottom, can increase 2 bottom of permanent magnet trough
The magnetic resistance of access reduces the magnetic line of force that magnetic field of magnetizing is closed here, promotes the magnetic line of force to enter magnet steel bottom, to improve rotor
The saturation degree that magnetizes of permanent magnet 3 can also reduce the permanent magnet brow leakage on the inside of rotor even if using stiff shaft, in turn
The magnetic linkage for improving motor promotes the performance of motor, while being open slot on the outside of the permanent magnet trough of rotor, further decreases forever
Leakage field on the outside of magnet improves air gap flux density, improves electric efficiency.
Along the direction of radial ecto-entad, the width of magnet isolation tank 4 successively decreases, and is incremented by every the width of bore 5.Perpendicular to turn
In the central axial section of sub- iron core 1, magnet isolation tank 4 is connected to permanent magnet trough 2, and the width of magnet isolation tank 4 is less than permanent magnet trough 2
Width.Magnet isolation tank 4 is connected to permanent magnet trough 2, and magnet isolation tank 4 is less than or equal to the width at 2 connected position of permanent magnet trough
The minimum widith of permanent magnet trough 2 can make since magnet isolation tank 4 successively decreases along the radial direction width close to shaft hole 7
The width that the width of magnet isolation tank 4 is less than permanent magnet 3 prevents permanent magnet from occurring in permanent magnet trough 2 so as to fixed permanent magnet
Play enhances running reliability of motor.
Above-mentioned permanent magnet 3 is, for example, ferrite permanent magnet, rare-earth permanent magnet or other permanent magnets.
In the central axial section perpendicular to rotor core 1, magnet isolation tank 4 with every the opposite side of bore 5 with every
Angle between the radial outside edge of magnetic slot 4 is B, and the angle between the bottom edge of permanent magnet 3 and the side of permanent magnet 3 is C, B/C
Ratio meet following relationship: 0.4 >=B/C >=0.18 so that magnetic bridge 6 forms an angle with permanent magnet center line shape.Included angle B
Increase, will increase the area of magnet isolation tank 4, due to being non-magnetic substance in magnet isolation tank 4, is capable of increasing the magnetic resistance of magnet isolation tank 4,
Magnetism isolating effect is promoted, but included angle B is excessive, the length that will lead to magnetic bridge 6 shortens, and magnetism isolating effect can be made to be deteriorated instead, therefore can
To be limited by angle C to be formed to included angle B, so that while increasing the area of magnet isolation tank 4, so that the length of magnetic bridge 6
It can also remain at a suitable range, guarantee the magnetism isolating effect of magnet isolation tank 4.
In the section of the central axis perpendicular to rotor core 1, width is equal everywhere in magnetic bridge 6, the width of magnetic bridge 6
Degree is N, and the width of motor gas-gap is δ, and the ratio of N/ δ meets following relationship: δ >=1 1.5 >=N/.Such as Figure 13, the material of magnetic bridge 6
Material is silicon steel sheet or the good soft magnetic materials of other magnetic conductivity, reduces the width of magnetic bridge 6, increases the magnetic resistance of magnetic bridge 6, into one
Step promotes the magnetism isolating effect of magnetic bridge 6, promotes the saturation degree that magnetizes of permanent magnet 3, improves the effective rate of utilization of permanent magnet 3, improves
The unloaded magnetic linkage of motor promotes the output torque of motor, promotes electric efficiency.
L is in the section of the central axis perpendicular to rotor core 1, most the greatly enhancing on rotor radial direction of magnet isolation tank 4
Degree is L, and length of the permanent magnet 3 on rotor radial direction is H, and the ratio of L/H meets following relationship: 0.16 >=L/H >=0.03,
As L/H < 0.03, length of the magnet isolation tank 4 in rotor radial direction is smaller, and the area of magnet isolation tank 4 reduces, and cannot play preferably
Magnetism isolating effect, the saturation degree that magnetizes of permanent magnet 3 is lower, as L/H > 0.16, length of the magnet isolation tank 4 on rotor radial direction
Degree, which increases the length for causing permanent magnet 3 on rotor radial direction, to be reduced, and the available magnetic flux of permanent magnet 3 can be made to reduce, made
The magnetic linkage decline of motor is obtained, electric efficiency reduces, therefore when 0.16 >=L/H >=0.03 is arranged, it is ensured that preferably imitated every magnetic
Fruit does not reduce the length of permanent magnet again, improves the magnetic linkage of motor, improves the output torque of motor, improves the efficiency of motor.
In the present embodiment, 4 section of magnet isolation tank is triangle, and L is vertex and triangle of the triangle close to shaft hole 7
The distance between bottom edge.
In the section of the central axis perpendicular to rotor core 1, every the bottom edge of bore 5 away from rotor core 1
The direction indent of central axis.
Preferably, every the bottom edge of bore 5 be it is arc-shaped, the center of circle on bottom edge is located on central axis, so that everywhere every bore 5
It is impartial with the spacing of shaft hole 7, increase the thickness of the coupling part of rotor core 1 and shaft, so that rotor core 1 and shaft
Uniform force, reduction stress reduce deformation everywhere for coupling part, enhance the structural strength enhancing of rotor, improve motor
Operational reliability prevents when high speed operation of motor rotor rupture to fly out and equipment is caused to damage personal injury.
Every the bottom edge of bore 5 may be broken line.
Bottom edge includes first straight line section 11 and second straight line section 12,11 He of first straight line section in one of the embodiments,
Second straight line section 12 is connected, and forms the apex angle of the wedge angle or rounding off with the first vertex.When first straight line section 11 and
When two straightways 12 form the apex angle of rounding off, the extended line of first straight line section 11 and second straight line section 12 meets at the first top
At point.In the present embodiment, bottom edge forms the apex angle of wedge angle or rounding off at the top of concave inward structure, can increase rotor iron
Core 1 increases the structural strength of junction in the thickness of the junction between bore 5.
In another embodiment, bottom edge includes first straight line section 11, second straight line section 12 and third straightway 13, and
One straightway 11 and second straight line section 12 extend away from the direction of the central axis of rotor core 1, and third straightway 13 connects
It connects between first straight line section 11 and the vertex of second straight line section 12.In the present embodiment, straight in first straight line section 11 and second
Flat-top is formed between line segment 12, eliminates original apex angle structure, can reduce the difficulty of processing technology, reduces processing time-consuming,
Reduce processing technology cost.
In the section of the central axis perpendicular to rotor core 1, every the bottom edge of bore 5 be the 4th straightway 14.At this
In embodiment, every the bottom of bore 5 be it is flat, i.e., bottom edge be a straight border, guarantee rotor structure mechanical strength base
On plinth, the area every bore 5 is further increased, increases the magnetic resistance every bore 5, limits the magnetic flux in magnetic field of magnetizing along permanent magnet trough 2
The magnetic circuit of bottom is closed, and improves the magnetic line of force entered on the inside of permanent magnet, meanwhile, when the rotor using this structure, in motor operation
When, it is possible to reduce the magnetic line of force of permanent magnet bottom is closed, and is reduced medial end leakage field magnetic flux Φ σ, is improved the magnetic linkage of motor, is promoted
The efficiency of motor improves output power of motor, guarantees motor performance reliability.
Every bore 5 further include the first side 16 and second side 17 being oppositely arranged, first side 16 and second side 17
It crosses to form the apex angle of wedge angle or rounding off with the second vertex at top.When first side 16 and second side 17 are being pushed up
Portion cross the apex angle to form rounding off when, the extended line of first side 16 and second side 17 intersects in the second apex.
Preferably, in another embodiment, every the first side 16 that bore 5 further includes top margin 15 and is oppositely arranged
With second side 17, the both ends of top margin 15 are connected with the vertex of first side 16 and second side 17 respectively.By the way that top margin is arranged
15, flat-top can be being formed every the top of bore 5, so that position at least a distance M that top is relatively narrow, M are greater than magnetic bridge 6
The 2 times or more of width not will form angle structure, to reduce the difficulty of processing technology, reduces processing time-consuming, reduces processing work
Skill cost.
Magnet isolation tank 4 is triangle or trapezoidal or other similar structures；And/or every bore 5 be triangle it is trapezoidal or other
Similar structure.Specifically, when magnet isolation tank 4 is triangle, every bore 5 can be triangle or trapezoidal, when magnet isolation tank 4 is
When trapezoidal, every bore 5 can be triangle or trapezoidal.
When the bottom edge indent of bore 5, minimum range of second vertex distance between the bottom edge of bore 5 is K, magnet isolation tank
The maximum length of 4 radial direction is L, and the ratio of K/L meets following relationship: -1.5 >=K/L >=0.8, can not reduce forever
In the case where the saturation degree that magnetizes of magnet 3, the mechanical strength of rotor structure is further promoted, reduces rotor in high-speed cruising,
The risk that rotor rupture magnet steel flies out guarantees the reliability of motor.
Preferably, magnet isolation tank 4 is trapezoidal, and magnet isolation tank 4 is E, permanent magnetism close to the bottom edge length of the central axis of rotor core 1
The width of body 3 is F, and the ratio of E/F meets following relationship: 0.5 >=E/F >=0.3, on the one hand can reduce the difficulty of processing technology
Degree reduces processing technology cost, on the other hand can increase the area of magnet isolation tank 4, increases the magnetic resistance of magnet isolation tank 4, reduces permanent magnetism
Body bottom end leakage field promotes the magnetic line of force that magnetic field of magnetizing enters permanent magnet bottom, promotes the saturation degree that magnetizes, promotes motor magnetic
Chain promotes electric efficiency, promotes motor reliability.
Preferably, the bottom of magnet isolation tank 4 be it is flat, every the top of bore 5 be flat-top, this is because not reducing permanent magnet
In the case where the saturation degree that magnetizes, the technique difficulty of processing of the apex angle of low-angle is larger, be designed as flat-top and it is flat can be further
The difficulty of processing technology is reduced, processing technology cost is reduced, reduces the totle drilling cost of motor, improve the cost performance of motor.
The peripheral side of rotor core 1 is arranged with non-magnetic fastening sheath 8.Fastening sheath 8 is tube-in-tube structure, itself does not lead
Magnetic can further reinforce motor rotor construction, improve the structural strength of rotor, improve the running frequency model of rotor
It encloses, improves operational reliability, widen the application of tangential motor.
Magnet isolation tank 4 and/or every being provided with non-magnetic reinforcing rod 9 in bore 5, reinforcing rod 9 is non-magnetic, and reinforcing rod 9 is placed in
Its surface of part on the inside of rotor and magnet isolation tank 4 are in contact every bore 5 or match with the two shape, and reinforcing rod 9 is placed in
Part on the outside of rotor can be made into circle or other shapes, and the part that reinforcing rod 9 is placed on the outside of rotor is connected with rotor stop plate,
One side reinforcing rod 9 guarantee permanent magnet 3 magnetize saturation degree in the case where can increase the fixed contact in 3 surface of permanent magnet
Area reduces running local pressure, can preferably fixed permanent magnet 3, prevent the wind of 3 fragmentation of permanent magnet in operational process
Danger, another aspect reinforcing rod 9 connect with the baffle of rotor core 1, and the structure for further increasing rotor with baffle fit is strong
Degree.
Magnet isolation tank 4 and/or every being filled with un-conducted magnetic material in bore 5.Magnet isolation tank 4 and every can be filled completely in bore 5
Un-conducted magnetic material can also fill un-conducted magnetic material after being packed into reinforcing rod 9 as reinforcer, to not led by what is filled
Magnetic material forms fixation to reinforcing rod 9 in magnet isolation tank 4 and/or every the installation in bore 5.
Permanent magnet trough 2 can be rectangle, or trapezoidal, permanent magnet is identical as permanent magnet trough shape.
Embodiment according to the present utility model, magneto include rotor, which turns for above-mentioned motor
Son.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with modification.
Claims (24)
1. a kind of rotor, which is characterized in that including rotor core (1), the rotor core (1) is circumferentially arranged have it is multiple
Permanent magnet trough (2), the permanent magnet trough (2) is interior to be provided with permanent magnet (3), is provided on the inside of the permanent magnet trough (2) every magnetic
Slot (4) is arranged at intervals between two adjacent magnet isolation tanks (4) every bore (5), the magnet isolation tank (4) and described every bore (5)
Between formed vertical bar shape magnetic bridge (6), between the magnetic bridge (6) and pole center line in preset angle.
2. rotor according to claim 1, which is characterized in that described every magnetic along the direction of radial ecto-entad
The width of slot (4) successively decreases, and the width every bore (5) is incremented by.
3. rotor according to claim 2, which is characterized in that in the central axis perpendicular to the rotor core (1)
To section in, the magnet isolation tank (4) is connected to the permanent magnet trough (2), and the width of the magnet isolation tank (4) be less than it is described forever
The width of magnet slot (2).
4. rotor according to claim 2, which is characterized in that in the central axis perpendicular to the rotor core (1)
To section in, the radial outside with the side opposite every bore (5) and the magnet isolation tank (4) of the magnet isolation tank (4)
Angle between side is B, and the angle between the bottom edge of the permanent magnet (3) and the side of the permanent magnet (3) is C, the ratio of B/C
Value meets following relationship:
0.4≥B/C≥0.18。
5. rotor according to claim 1, which is characterized in that in the central axis perpendicular to the rotor core (1)
In the section of line, width is equal everywhere in the magnetic bridge (6), and the width of the magnetic bridge (6) is N, the width of motor gas-gap
For δ, the ratio of N/ δ meets following relationship:
1.5≥N/δ≥1。
6. rotor according to claim 1, which is characterized in that
In the section of the central axis perpendicular to the rotor core (1), the magnet isolation tank (4) is on rotor radial direction
Maximum length is L, and length of the permanent magnet (3) on rotor radial direction is H, and the ratio of L/H meets following relationship:
0.16≥L/H≥0.03。
7. rotor according to claim 2, which is characterized in that in the central axis perpendicular to the rotor core (1)
In the section of line, direction indent of the bottom edge every bore (5) away from the central axis of the rotor core (1).
8. rotor according to claim 7, which is characterized in that the bottom edge every bore (5) be it is arc-shaped, it is described
The center of circle on bottom edge is located on the central axis.
9. rotor according to claim 7, which is characterized in that the bottom edge every bore (5) is broken line.
10. rotor according to claim 9, which is characterized in that the bottom edge includes first straight line section (11) and
Two straightways (12), the first straight line section (11) are connected with the second straight line section (12), and are formed with the first vertex
The apex angle of wedge angle or rounding off.
11. rotor according to claim 9, which is characterized in that the bottom edge includes first straight line section (11), second
Straightway (12) and third straightway (13), the first straight line section (11) and the second straight line section (12) are away from described
The direction of the central axis of rotor core (1) extends, the third straightway (13) be connected to the first straight line section (11) and
Between the vertex of the second straight line section (12).
12. rotor according to claim 2, which is characterized in that in the central axis perpendicular to the rotor core (1)
In the section of line, the bottom edge every bore (5) is the 4th straightway (14).
13. the rotor according to any one of claim 2 to 12, which is characterized in that described to further include every bore (5)
The first side (16) and second side (17) being oppositely arranged, the first side (16) and the second side (17) are at top
It crosses to form the apex angle of wedge angle or rounding off with the second vertex.
14. the rotor according to any one of claim 2 to 12, which is characterized in that described to further include every bore (5)
Top margin (15) and the first side (16) and second side (17) being oppositely arranged, the both ends of the top margin (15) are respectively with described
A side (16) is connected with the vertex of the second side (17).
15. rotor according to claim 14, which is characterized in that the length of the top margin (15) is M, and M is greater than institute
State the 2 times or more of magnetic bridge (6) width.
16. rotor according to claim 2, which is characterized in that the magnet isolation tank (4) is triangle or trapezoidal；With/
It every bore (5) is triangle or trapezoidal or, described.
17. rotor according to claim 13, which is characterized in that it is described when the bottom edge indent of bore (5), it is described
Minimum range described in second vertex distance between the bottom edge of bore (5) is K, and the radial direction of the magnet isolation tank (4) is most
Long length is L, and the ratio of K/L meets following relationship:
1.5≥K/L≥0.8。
18. rotor according to claim 16, which is characterized in that the magnet isolation tank (4) is trapezoidal, the magnet isolation tank
(4) the bottom edge length close to the central axis of the rotor core (1) is E, and the width of the permanent magnet (3) is F, the ratio of E/F
Value meets following relationship:
0.5≥E/F≥0.3。
19. rotor according to claim 1, which is characterized in that the peripheral side of the rotor core (1) is arranged with not
The fastening sheath (8) of magnetic conduction.
20. rotor according to claim 1, which is characterized in that the magnet isolation tank (4) and/or described every bore (5)
Inside it is provided with non-magnetic reinforcing rod (9).
21. rotor according to claim 20, which is characterized in that the outer surface of the reinforcing rod (9) and it is described every
The inner surface of magnetic slot (4) is in contact or the shape of the reinforcing rod (9) and the shape of the magnet isolation tank (4) match；And/or
The outer surface of the reinforcing rod (9) is in contact with the inner surface every bore (5) or the shape of the reinforcing rod (9)
Match with the shape every bore (5).
22. according to claim 1 to rotor described in any one of 12,15 to 21, which is characterized in that the magnet isolation tank
(4) and/or described un-conducted magnetic material is filled in the bore (5).
23. rotor according to claim 1, which is characterized in that be equipped with permanent magnet in each permanent magnet trough (2)
(3), permanent magnet (3) tangentially magnetizes, adjacent two permanent magnet (3) polar repulsions setting.
24. a kind of magneto, including rotor, which is characterized in that the rotor is any in claim 1 to 23
Rotor described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326906.2U CN208835855U (en) | 2018-08-15 | 2018-08-15 | Rotor and magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326906.2U CN208835855U (en) | 2018-08-15 | 2018-08-15 | Rotor and magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208835855U true CN208835855U (en) | 2019-05-07 |
Family
ID=66309570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821326906.2U Active CN208835855U (en) | 2018-08-15 | 2018-08-15 | Rotor and magneto |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208835855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768028A (en) * | 2018-08-15 | 2018-11-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magneto |
| CN110224516A (en) * | 2019-07-08 | 2019-09-10 | 苏州市润豪电机有限公司 | A kind of two extremely embedded brushless DC motor rotors |
-
2018
- 2018-08-15 CN CN201821326906.2U patent/CN208835855U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768028A (en) * | 2018-08-15 | 2018-11-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magneto |
| CN110224516A (en) * | 2019-07-08 | 2019-09-10 | 苏州市润豪电机有限公司 | A kind of two extremely embedded brushless DC motor rotors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208835852U (en) | Rotor and magneto | |
| CN107994702B (en) | Rotor and magneto | |
| US11387695B2 (en) | Tangential motor, tangential motor rotor and rotor iron core thereof | |
| US8754559B2 (en) | Rotor and rotary electric machine containing the same | |
| CN208835855U (en) | Rotor and magneto | |
| CN108768027A (en) | Rotor and magneto | |
| WO2020125066A1 (en) | Tangential motor, motor rotor and rotor core | |
| CN108768028A (en) | Rotor and magneto | |
| CN108768025A (en) | Rotor and magneto | |
| CN208835857U (en) | Rotor and magneto | |
| CN208835853U (en) | Rotor and magneto | |
| CN206077099U (en) | Motor and its rotor structure | |
| CN208835858U (en) | Rotor and magneto | |
| CN208337260U (en) | Rotor assembly and motor | |
| CN108768024A (en) | Rotor and magneto | |
| CN108923559A (en) | Rotor and magneto | |
| CN207766048U (en) | The rotor and magneto of magneto | |
| CN208835856U (en) | Rotor and magneto | |
| CN108923558A (en) | Rotor and magneto | |
| CN205693465U (en) | A kind of permanent magnet machine rotor of high reluctance torque | |
| CN208835854U (en) | Rotor and magneto | |
| CN108768026A (en) | Rotor and magneto | |
| CN208835859U (en) | Rotor and magneto | |
| CN202034839U (en) | Magnetic field rotor punch with high air gap magnetic flux density | |
| CN108768029A (en) | Rotor and magneto |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |