CN109660042A - A kind of tandem type hybrid permanent magnet change flux electric machine - Google Patents
A kind of tandem type hybrid permanent magnet change flux electric machine Download PDFInfo
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- CN109660042A CN109660042A CN201910041163.7A CN201910041163A CN109660042A CN 109660042 A CN109660042 A CN 109660042A CN 201910041163 A CN201910041163 A CN 201910041163A CN 109660042 A CN109660042 A CN 109660042A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of tandem type hybrid permanent magnets to become flux electric machine, including stator (100), the armature winding (200) and rotor core (300) being around on the stator (100), each pole of the rotor core (300) is not directly contacted with there are three dividing into, separated permanent magnet, wherein the second permanent magnet (302) is placed in outside in " one " shape, two the first permanent magnets (301) are V-shaped to be placed in inside, second permanent magnet (302) is High-coercivity Permanent Magnets or low-coercivity permanent magnet, first permanent magnet (301) is High-coercivity Permanent Magnets or low-coercivity permanent magnet.Motor of the invention, low-coercivity permanent magnet and High-coercivity Permanent Magnets use special placement location and mode, so that the motor is magnetic circuit tandem type structure, High-coercivity Permanent Magnets, which play low-coercivity permanent magnet, increases magnetic action, improve operating point and the magnetization degree of low-coercivity permanent magnet, torque output capability is improved, the electric current that magnetizes of motor is reduced.
Description
Technical field
The invention belongs to hybrid permanent magnet technical field of motors, become magnetic flux more particularly, to a kind of tandem type hybrid permanent magnet
Motor.
Background technique
In recent years, permanent magnet synchronous motor is answered extensively due to the features such as its is high-efficient, power density is high and mechanical property is good
For fields such as traffic, industry, national defence.However as the expansion of application field, traditional permanent magnet synchronous motor is also exposed
Some disadvantages.The magnetization status of permanent magnet is difficult to change in conventional permanent magnet motor, unloaded back-emf can with the increase of revolving speed and
Increase.End voltage is held no more than the voltage limit that inverter exports in high speed section when due to motor operation
Continuous weak magnetic control, i.e., offset permanent magnetism magnetomotive force by increasing d-axis demagnetizing current component, guarantees end voltage lower than inverter electricity
Limiting value is pressed, achievees the purpose that weak magnetism speed expansion.But this method still has deficiency: first, since permanent magnet magnetic resistance is larger, directly
Axle inductance is usually smaller, it is therefore desirable to biggish weak magnetoelectricity stream, and weak magnetic ability is limited, electric machine speed regulation range is relatively narrow；Second, it is weak
Magnetoelectricity stream can introduce additional copper loss, and copper loss size and electric current is square proportional, with the increase of revolving speed, weak magnetic electricity
It flows amplitude to increase, the loss of weak magnetic bring will significantly improve, and reduce the efficiency of motor；Third is limited to inverter capacity, weak
The increase of magnetoelectricity stream certainly will reduce torque current ingredient, and then reduce motor in the torque output capability in high speed section.
Then scholar proposes a kind of change flux electric machine (i.e. " memory electrical machine "), which uses low-coercivity permanent magnet,
Permanent magnet is carried out filling demagnetization to change the magnetization degree of permanent magnet, to realize air-gap field by application d-axis pulse current
The flexible modulation of intensity.The motor does not need to be continuously applied additional weak magnetoelectricity stream, can obtain wider speed adjustable range, and
Efficiency still with higher in wide speed regulating range.But the magnetic energy product of low-coercivity permanent magnet is lower, therefore, is used only single low strong
The torque density of the change flux electric machine of stupid power permanent magnet is lower.
Then scholar proposes that hybrid permanent magnet becomes flux electric machine again, which uses High-coercivity Permanent Magnets and low strong simultaneously
Stupid power permanent magnet improves torque density while keeping adjustable magnetic characteristic.Hybrid permanent magnet becomes flux electric machine according to the difference of magnetic circuit
Parallel connection type and two kinds of tandem type can be divided into.Become in flux electric machine in parallel connection type hybrid permanent magnet, High-coercivity Permanent Magnets are to low coercive
Power permanent magnet plays demagnetizing effect, and low-coercivity Operating Point of Permanent Magnet is lower, therefore the torque density of the motor is not high, and rectifys to low
Electric current required for stupid power permanent magnet is magnetized is very big, that is, it is more difficult to magnetize.These disadvantages limit parallel connection type hybrid permanent magnet
Become the application of flux electric machine.
Another kind is that tandem type hybrid permanent magnet becomes flux electric machine, and the motor permanent magnet is by high-coercive force and two kinds of low-coercivity
Set of permanent magnets is at and two kinds of permanent magnets directly contact, and fitting is placed at an entirety.By adjusting the magnetic of low-coercivity permanent magnet
Change state changes air-gap flux.But in this configuration, High-coercivity Permanent Magnets are directly fitted with low-coercivity permanent magnet and are put
It sets, all passes through low-coercivity permanent magnet by the magnetic flux of High-coercivity Permanent Magnets, High-coercivity Permanent Magnets are to low coercive at this time
Power permanent magnet plays very strong increasing magnetic action, will lead to that electric current demagnetization to low-coercivity permanent magnet required for is larger and tune
Magnetic range is relatively narrow.In order to increase adjustable magnetic range, the thickness ratio of low-coercivity permanent magnet and High-coercivity Permanent Magnets can only be increased, but
Also demagnetization current is filled required for further increasing.And the direct axis reluctance and quadrature-axis reluctance of the construction rotor are very big, d-axis
Inductance and axis inductor very little and it is not much different, i.e., salient pole is than less, reluctance torque is smaller, therefore the torque density of the motor is still
It is so not high enough.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of tandem type hybrid permanent magnet change magnetic flux electricity
Machine, it is intended that low-coercivity permanent magnet and High-coercivity Permanent Magnets use special placement location and mode, so that the electricity
Machine is magnetic circuit tandem type structure, and High-coercivity Permanent Magnets, which play low-coercivity permanent magnet, increases magnetic action, improves low-coercivity forever
The operating point of magnet and magnetization degree improve torque output capability, reduce the electric current that magnetizes of motor.
To achieve the goals above, the present invention provides a kind of tandem type hybrid permanent magnet and becomes flux electric machine, including stator, is around in
Armature winding and rotor core on the stator, the stator and the radially coaxial arrangement of rotor core,
Each pole of the rotor core divide into there are three be not directly contacted with, separated permanent magnet, wherein second forever
Magnet is placed in outside in " one " shape, and two the first permanent magnets are V-shaped to be placed in inside, and three set of permanent magnets fall three at one
Angular structure, first permanent magnet and the second permanent magnet are vertically to magnetize；
Second permanent magnet that " one " shape is placed is High-coercivity Permanent Magnets or low-coercivity permanent magnet, and " V " shape is placed
First permanent magnet be High-coercivity Permanent Magnets or low-coercivity permanent magnet, and " one " shape place the second permanent magnet
It is different with the first permanent magnet type that " V " shape is placed.
Further, described " one " shape the second permanent magnet both ends are equipped with the first magnet isolation tank and the second magnet isolation tank；
First permanent magnet of " V " shape is respectively equipped with third magnet isolation tank and the 4th magnet isolation tank close to one end of air gap, described
" V " shape the first permanent magnet opposite side is respectively equipped with the 5th magnet isolation tank and the 6th magnet isolation tank.
Further, the third magnet isolation tank and the 4th magnet isolation tank are rectangular configuration, one end respectively with the " V " shape the
The connection of one permanent magnet end, the other end is correspondingly arranged with first magnet isolation tank, the second magnet isolation tank respectively, to reduce described first
The leakage field of permanent magnet and the second permanent magnet.
Further, first magnet isolation tank, the second magnet isolation tank are trapezium structure, and the third magnet isolation tank and the 4th is every magnetic
Slot is rectangular configuration；
A side of first magnet isolation tank and a side of the 4th magnet isolation tank are oppositely arranged, second magnet isolation tank
A side and a side of the third magnet isolation tank be oppositely arranged, to adjust between first permanent magnet and the second permanent magnet
Magnetic bridge width；And
Magnetic bridge between first magnet isolation tank and the 4th magnet isolation tank and second magnet isolation tank and third magnet isolation tank is wide
Degree is 1.0~3.0mm.
Further, first magnet isolation tank, the second magnet isolation tank be triangular structure, the third magnet isolation tank and the 4th every
Magnetic slot is baseball club shaped structure；
A side of first magnet isolation tank and a side of the 4th magnet isolation tank are oppositely arranged；
A side of second magnet isolation tank and a side of the third magnet isolation tank are oppositely arranged；And
Magnetic bridge between first magnet isolation tank and the 4th magnet isolation tank and second magnet isolation tank and third magnet isolation tank is wide
Degree is 1.0~3.0mm.
Further, the first permanent magnet that the " V " shape is placed is High-coercivity Permanent Magnets, and the second of " one " shape placement is forever
Magnet is low-coercivity permanent magnet.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1. tandem type hybrid permanent magnet of the invention becomes flux electric machine, low-coercivity permanent magnet and High-coercivity Permanent Magnets are used
Special placement location and mode, so that the motor is magnetic circuit tandem type structure, High-coercivity Permanent Magnets are to low-coercivity permanent magnetism
Body, which rises, increases magnetic action, improves operating point and the magnetization degree of low-coercivity permanent magnet, improves torque output capability, reduce electricity
The electric current that magnetizes of machine.
2. tandem type hybrid permanent magnet of the invention becomes flux electric machine, the rotor structure d-axis magnetic resistance of design is greater than quadrature axis magnetic
Resistance has biggish salient pole ratio, higher reluctance torque can be obtained, to improve the torque density of motor.
3. tandem type hybrid permanent magnet of the invention becomes flux electric machine, low-coercivity permanent magnet is placed in outside in " one " shape,
Armature field is stronger to the effect of low-coercivity permanent magnet, makes low-coercivity permanent magnet be easier to fill demagnetization, and carry out filling demagnetization
The magnetization degree of permanent magnet is more evenly afterwards；High-coercivity Permanent Magnets are V-shaped to be placed in inside, and the torque that motor can be improved is close
Degree.
4. tandem type hybrid permanent magnet of the invention becomes flux electric machine, two kinds of permanent magnets are separated, greatly reduce by
The magnetic flux of low-coercivity permanent magnet weakens increasing magnetic action of the High-coercivity Permanent Magnets to low-coercivity permanent magnet, reduces pair
Low-coercivity permanent magnet required magnetomotive force when being demagnetized reduces electric current required for demagnetization.
5. tandem type hybrid permanent magnet of the invention becomes flux electric machine, " one " shape the second permanent magnet both ends are equipped with the first magnet isolation tank
With the second magnet isolation tank, the first permanent magnet of " V " shape includes the permanent magnet of two angled settings, permanent magnet close to air gap one
End is respectively equipped with third magnet isolation tank and the 4th magnet isolation tank, and permanent magnet opposite side is respectively equipped with the 5th magnet isolation tank and the 6th every magnetic
Slot, to adjust the magnetic bridge width between High-coercivity Permanent Magnets and low-coercivity permanent magnet.Make between two kinds of permanent magnets mutually
Action intensity is moderate, can both obtain in the case where low-coercivity permanent magnet and smaller High-coercivity Permanent Magnets thickness larger
Adjustable magnetic range, the demagnetization current of motor can also be reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of tandem type hybrid permanent magnet of the present invention becomes flux electric machine；
Fig. 2 is the structure and magnetic line of force schematic diagram that a kind of tandem type hybrid permanent magnet of the present invention becomes flux electric machine embodiment one；
Fig. 3 is permanent magnet portion enlarged diagram in the embodiment of the present invention one；
Fig. 4 is the structure and magnetic line of force schematic diagram that a kind of tandem type hybrid permanent magnet of the present invention becomes flux electric machine embodiment two；
Fig. 5 is permanent magnet portion enlarged diagram in the embodiment of the present invention two；
Fig. 6 is the structure and magnetic line of force schematic diagram that a kind of tandem type hybrid permanent magnet of the present invention becomes flux electric machine embodiment three；
Fig. 7 is permanent magnet portion enlarged diagram in the embodiment of the present invention three；
Fig. 8 is the structure and magnetic line of force signal for the example IV that a kind of tandem type hybrid permanent magnet of the present invention becomes flux electric machine
Figure；
Fig. 9 is four permanent magnet portion enlarged diagram of the embodiment of the present invention.
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 100- stator, 200- electricity
Pivot winding, 300- rotor core, the first permanent magnet of 301-, the second permanent magnet of 302-, the first magnet isolation tank of 3021-, 3022- second every
Magnetic slot, 3011- third magnet isolation tank, the 5th magnet isolation tank of 3012-, the 6th magnet isolation tank of 3013-, the 4th magnet isolation tank of 3014-.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
Become in flux electric machine in tandem type hybrid permanent magnet, if High-coercivity Permanent Magnets and low-coercivity permanent magnet directly paste
It closes and places, can be all by low-coercivity permanent magnet by the magnetic flux of High-coercivity Permanent Magnets, High-coercivity Permanent Magnets pair at this time
Low-coercivity permanent magnet plays very strong increasing magnetic action.Very big magnetomotive force is needed when demagnetizing to low-coercivity permanent magnet,
Electric current required for causing to demagnetize is larger and adjustable magnetic range is relatively narrow.In order to increase adjustable magnetic range, low-coercivity permanent magnetism can only be increased
The thickness of body and High-coercivity Permanent Magnets ratio, but demagnetization current is filled required for also further increasing.
To solve the above-mentioned problems, the present invention proposes that a kind of tandem type hybrid permanent magnet becomes flux electric machine, as shown in Figure 1, should
Motor includes stator 100, the armature winding being around on stator 200 and rotor core 300；Stator 100 and rotor core 200 are radial
It is coaxially arranged.The rotor structure d-axis magnetic resistance that the present invention designs is greater than quadrature-axis reluctance, therefore d-axis inductance is less than axis inductor, tool
There is biggish salient pole ratio, higher reluctance torque can be obtained, to improve the torque density of motor.
Wherein, each pole of rotor core 300 divide into there are three be not directly contacted with, separated permanent magnet, wherein the
Two permanent magnets 302 are placed in outside in " one " shape, and two the first permanent magnets 301 are V-shaped to be placed in inside, three set of permanent magnets
At a up-side down triangle, permanent magnet is vertically to magnetize." one " shape place the second permanent magnet 302 be High-coercivity Permanent Magnets or
Person's low-coercivity permanent magnet, " V " shape place the first permanent magnet 301 be High-coercivity Permanent Magnets or low-coercivity permanent magnet,
And 301 type of the first permanent magnet that the second permanent magnet 302 of " one " shape placement is placed with " V " shape is different.
In the preferred embodiment of the invention, low-coercivity permanent magnetism body thickness is greater than High-coercivity Permanent Magnets thickness.
In the preferred embodiment of the invention, the first permanent magnet 301 that " V " shape is placed is High-coercivity Permanent Magnets, " one "
The second permanent magnet 302 that shape is placed is low-coercivity permanent magnet.
In embodiment one as shown in Figure 2, the second permanent magnet 302 that " one " shape is placed is low-coercivity permanent magnet, " V " shape
The first permanent magnet 301 placed is High-coercivity Permanent Magnets.From the magnetic line of force as can be seen that the motor magnetic circuit is still tandem type knot
Structure, remain tandem type motor high torque density and it is low magnetize electric current the characteristics of.As shown in figure 3, in currently preferred implementation
In example, 302 both ends of the second permanent magnet of " one " shape are equipped with the first magnet isolation tank 3021 and the second magnet isolation tank 3022, the first permanent magnetism of " V " shape
Body 301 is respectively equipped with third magnet isolation tank 3011 and the 4th magnet isolation tank 3014, the first permanent magnet of " V " shape 301 close to one end of air gap
Opposite side is respectively equipped with the 5th magnet isolation tank 3012 and the 6th magnet isolation tank 3013, to adjust High-coercivity Permanent Magnets and low coercive
Magnetic bridge width between power permanent magnet.Preferably, the first magnet isolation tank 3021, the second magnet isolation tank 3022, third magnet isolation tank 3011,
Four magnet isolation tanks 3014 and the 5th magnet isolation tank 3012 and the 6th magnet isolation tank 3013 are triangular structure.Two kinds of permanent magnets are separately put
It sets, greatly reduces the magnetic flux by low-coercivity permanent magnet, weaken High-coercivity Permanent Magnets to low-coercivity permanent magnet
Increase magnetic action, reduces required magnetomotive force when demagnetizing to low-coercivity permanent magnet, that is, reduce required for demagnetization
Electric current.
Embodiment two as shown in Figure 4 and Figure 5,302 both ends of the second permanent magnet of " one " shape are equipped with the first magnet isolation tank 3021 and the
Two magnet isolation tanks 3022, the first permanent magnet of " V " shape 301 are respectively equipped with third magnet isolation tank 3011 and the 4th every magnetic close to one end of air gap
Slot 3014,301 opposite side of the first permanent magnet of " V " shape are respectively equipped with the 5th magnet isolation tank 3012 and the 6th magnet isolation tank 3013.Wherein,
Third magnet isolation tank 3011 and the 4th magnet isolation tank 3014 are rectangular configuration, and one end is connect with 301 end of the first permanent magnet of " V " shape,
The other end is correspondingly arranged with first magnet isolation tank 3021, the second magnet isolation tank 3022 respectively, to adjust first permanent magnet 301
Magnetic bridge width between the second permanent magnet 302, reduces the leakage field of permanent magnet, improves torque output capability.It is high at this time to rectify
Stupid power permanent magnet is weaker to the increasing magnetic action of low-coercivity permanent magnet, the low-coercivity permanent magnetism when motor is in minimum magnetization degree
The operating point of body is very low, it is therefore desirable to can be only achieved the minimum of motor when low-coercivity permanent magnet demagnetizes to magnetic flux density very little
Magnetization degree causes demagnetization current still larger.
Embodiment three as shown in Figures 6 and 7,302 both ends of the second permanent magnet of " one " shape are equipped with the first magnet isolation tank 3021 and second
Magnet isolation tank 3022, the first permanent magnet of " V " shape 301 are respectively equipped with third magnet isolation tank 3011 and the 4th magnet isolation tank close to one end of air gap
3014,301 opposite side of the first permanent magnet of " V " shape is respectively equipped with the 5th magnet isolation tank 3012 and the 6th magnet isolation tank 3013.Wherein,
One magnet isolation tank 3021, the second magnet isolation tank 3022 are trapezium structure, and third magnet isolation tank 3011 and the 4th magnet isolation tank 3014 are rectangle knot
Structure, a side of the first magnet isolation tank 3021 and a side of the 4th magnet isolation tank 3014 are oppositely arranged, the second magnet isolation tank 3022
A side and a side of the third magnet isolation tank 3011 be oppositely arranged；And first magnet isolation tank 3021 and the 4th magnet isolation tank
Magnetic bridge width between 3014 and second magnet isolation tank 3022 and third magnet isolation tank 3011 is 1.0~3.0mm.
As shown in fig. 7, since there are the magnetic that magnetic bridge width between magnet isolation tank and two slots is smaller, and High-coercivity Permanent Magnets generate
Logical major part will pass through low-coercivity permanent magnet, and only small part magnetic flux passes through from magnetic bridge, compared with embodiment illustrated in fig. 5 two
Interaction in obvious embodiment three between two kinds of permanent magnets is enhanced.Two kinds can suitably be enhanced by the way that magnet isolation tank is arranged
Interaction between permanent magnet adjusts interaction strength between two kinds of permanent magnets, makes to interact between two kinds of permanent magnets
Moderate strength.The operating point of low-coercivity permanent magnet is higher when motor is in minimum magnetization degree in embodiment three, does not need
The minimum magnetization degree that motor can be reached when low-coercivity permanent magnet is demagnetized to magnetic flux density very little, thus while high coercive
Power permanent magnet slightly enhances the increasing magnetic action of low-coercivity permanent magnet, but can reduce the demagnetization current of motor.It is real shown in Fig. 6
Example three is applied compared with embodiment illustrated in fig. 4 two, less, main flux size variation is little for main magnetic circuit variation, therefore embodiment three is protected
Biggish adjustable magnetic range in embodiment two has been held, while having also reduced the demagnetization current of motor.
Example IV as shown in Figure 8,302 both ends of the second permanent magnet of " one " shape are equipped with the first magnet isolation tank 3021 and second every magnetic
Slot 3022, the first permanent magnet of " V " shape 301 are respectively equipped with third magnet isolation tank 3011 and the 4th magnet isolation tank close to one end of air gap
3014,301 opposite side of the first permanent magnet of " V " shape is respectively equipped with the 5th magnet isolation tank 3012 and the 6th magnet isolation tank 3013.Wherein,
One magnet isolation tank 3021, the second magnet isolation tank 3022 are triangular structure, and third magnet isolation tank 3011 and the 4th magnet isolation tank 3014 are baseball
Club shaped structure, a side of the first magnet isolation tank 3021 and a side of the 4th magnet isolation tank 3014 are oppositely arranged, and second every magnetic
A side of slot 3022 and a side of third magnet isolation tank 3011 are oppositely arranged；And first magnet isolation tank 3021 and the 4th magnet isolation tank
3014 and the second magnetic bridge width between magnet isolation tank 3022 and third magnet isolation tank 3011 be 1.0~3.0mm, by adjusting " V "
The subtended angle of shape slot keeps magnetic bridge width smaller.As seen in Figure 9, the magnetic flux that High-coercivity Permanent Magnets generate largely will be through
Low-coercivity permanent magnet is crossed, only small part magnetic flux passes through from magnetic bridge, also achieves the phase interaction between two kinds of permanent magnets of enhancing
With, adjust interaction strength effect.
Low-coercivity permanent magnet is placed in outside, work of the armature field to low-coercivity permanent magnet in " one " shape in the present invention
With stronger, low-coercivity permanent magnet is made to be easier to fill demagnetization, and fill the magnetization degree of permanent magnet after demagnetization more evenly.Height is rectified
Stupid power permanent magnet is V-shaped to be placed in inside, and the torque density of motor can be improved.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of tandem type hybrid permanent magnet becomes flux electric machine, including stator (100), the armature winding being around on the stator (100)
(200) and rotor core (300), the stator (100) and rotor core (200) radially coaxial arrangement, it is characterised in that:
Each pole of the rotor core (300) divide into there are three be not directly contacted with, separated permanent magnet, wherein second forever
Magnet (302) is placed in outside in " one " shape, and two the first permanent magnets (301) are V-shaped to be placed in inside, three set of permanent magnets
At an inverted triangular structure, first permanent magnet (301) and the second permanent magnet (302) are vertically to magnetize；
Second permanent magnet (302) that " one " shape is placed is High-coercivity Permanent Magnets or low-coercivity permanent magnet, and " V " shape is placed
First permanent magnet (301) be High-coercivity Permanent Magnets or low-coercivity permanent magnet, and " one " shape place second
Permanent magnet (302) is different with the first permanent magnet (301) type that " V " shape is placed.
2. a kind of tandem type hybrid permanent magnet according to claim 1 becomes flux electric machine, which is characterized in that " one " shape the
Two permanent magnets (302) both ends are equipped with the first magnet isolation tank (3021) and the second magnet isolation tank (3022)；
First permanent magnet of " V " shape (301) is respectively equipped with third magnet isolation tank (3011) and the 4th every magnetic close to one end of air gap
Slot (3014), the first permanent magnet of " V " shape (301) opposite side are respectively equipped with the 5th magnet isolation tank (3012) and the 6th magnet isolation tank
(3013)。
3. a kind of tandem type hybrid permanent magnet according to any one of claim 1-3 becomes flux electric machine, which is characterized in that institute
Stating third magnet isolation tank (3011) and the 4th magnet isolation tank (3014) is rectangular configuration, one end respectively with first permanent magnetism of " V " shape
The connection of body (301) end, the other end are correspondingly arranged with first magnet isolation tank (3021), the second magnet isolation tank (3022) respectively, with
Reduce the leakage field of first permanent magnet (301) and the second permanent magnet (302).
4. a kind of tandem type hybrid permanent magnet according to any one of claim 1-3 becomes flux electric machine, which is characterized in that institute
The first magnet isolation tank (3021), the second magnet isolation tank (3022) are stated as trapezium structure, the third magnet isolation tank (3011) and the 4th is every magnetic
Slot (3014) is rectangular configuration；
A side of first magnet isolation tank (3021) and a side of the 4th magnet isolation tank (3014) are oppositely arranged, and described
A side of two magnet isolation tanks (3022) and a side of the third magnet isolation tank (3011) are oppositely arranged, to adjust described first forever
Magnetic bridge width between magnet (301) and the second permanent magnet (302)；And
First magnet isolation tank (3021) and the 4th magnet isolation tank (3014) and second magnet isolation tank (3022) and third are every magnetic
Magnetic bridge width between slot (3011) is 1.0~3.0mm.
5. a kind of tandem type hybrid permanent magnet change flux electric machine described in any one of -4 according to claim 1, which is characterized in that institute
State the first magnet isolation tank (3021), the second magnet isolation tank (3022) be triangular structure, the third magnet isolation tank (3011) and the 4th every
Magnetic slot (3014) is baseball club shaped structure；
A side of first magnet isolation tank (3021) and a side of the 4th magnet isolation tank (3014) are oppositely arranged；
A side of second magnet isolation tank (3022) and a side of the third magnet isolation tank (3011) are oppositely arranged；And
First magnet isolation tank (3021) and the 4th magnet isolation tank (3014) and second magnet isolation tank (3022) and third are every magnetic
Magnetic bridge width between slot (3011) is 1.0~3.0mm.
6. a kind of tandem type hybrid permanent magnet according to any one of claims 1-5 becomes flux electric machine, which is characterized in that institute
The first permanent magnet (301) for stating " V " shape placement is High-coercivity Permanent Magnets, and the second permanent magnet (302) that " one " shape is placed is low
Coercivity permanent magnet.
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| CN201910041163.7A CN109660042B (en) | 2019-01-16 | 2019-01-16 | Series hybrid permanent magnet variable-flux motor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277848A (en) * | 2019-07-08 | 2019-09-24 | 广东工业大学 | A kind of internal permanent magnet synchronous motor |
| CN110277851A (en) * | 2019-07-23 | 2019-09-24 | 中达电机股份有限公司 | Mixed magneto rotor and its mixed magneto |
| CN111756145A (en) * | 2020-07-08 | 2020-10-09 | 上海交通大学 | Double three-phase winding variable magnetic flux memory motor, motor system and control method thereof |
| CN113472170A (en) * | 2021-08-05 | 2021-10-01 | 威海西立电子有限公司 | Variable magnetic flux permanent magnet synchronous motor, control method and control system |
| CN114514672A (en) * | 2019-09-30 | 2022-05-17 | 大金工业株式会社 | Rotor and motor |
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