CN104979968B - Motor magnet ring, motor and washing machine - Google Patents
Motor magnet ring, motor and washing machine Download PDFInfo
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- CN104979968B CN104979968B CN201510398428.0A CN201510398428A CN104979968B CN 104979968 B CN104979968 B CN 104979968B CN 201510398428 A CN201510398428 A CN 201510398428A CN 104979968 B CN104979968 B CN 104979968B
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Abstract
The present invention is suitable for motor field, disclose motor magnet ring, motor and washing machine, wherein, motor magnet ring includes the nonmetallic magnet ring being set in shaft and the metal sleeve being sheathed on nonmetallic magnet ring, nonmetallic magnet ring includes the mounting portion coordinated with shaft set and positioned at axial direction one end of mounting portion and for generating the magnet ring work department that magnetic field detects for control circuit board, and metal sleeve is sheathed on mounting portion.The present invention, nonmetallic ring axial magnetic is divided into mounting portion and magnet ring work department two parts, and realize installation of the nonmetallic magnet ring in shaft especially by mounting portion, magnetic field is generated so that control circuit board detection determines so as to fulfill to rotor magnetic pole position by magnet ring work department；Meanwhile by being arranged metal sleeve outside mounting portion, so so that the mounting portion and magnet ring work department of nonmetallic magnet ring are prevented all there is no cracking risk since nonmetallic magnet ring ruptures, coming off causes the idle situation of motor to occur.
Description
Technical field
The invention belongs to motor field more particularly to motor magnet ring, the motor with the motor magnet ring and with the motor
Washing machine
Background technology
Motor magnet ring is mainly used for detecting to determine the position of rotor magnetic pole for control circuit board, is mainly used for internal rotor
Brshless DC motor or permanent magnet synchronous motor in.Specifically, brshless DC motor or permanent magnet synchronous motor at work, mainly
Be by control circuit board to stator winding electrifying, and its alive size, direction it is related to the position of rotor magnetic pole.When
When rotor magnetic pole is in a certain specific position, correspondence need to be passed through matched a certain with specific direction in stator winding
With the electric current of particular size, in this way, brshless DC motor or permanent magnet synchronous motor can sustainedly and stably export drag torque
Loaded work piece is driven, thus just needs control circuit board that can detect the position of rotor magnetic pole exactly.However, part nothing
Brushless motor or permanent magnet synchronous motor are limited by structure space, control circuit board can not direct detection to the position of rotor magnetic pole
It puts, therefore, it is necessary to add a magnet ring, so that control circuit board determines rotor magnetic pole by detecting the position of magnet ring magnetic pole
Position.Wherein, magnet ring and rotor are installed in same root shaft, and there are a specific positions to close for magnet ring magnetic pole and rotor magnetic pole
System, in this way, by the specific position relationship, as long as the position of magnet ring magnetic pole can be detected, you can determine the position of rotor magnetic pole
It puts, so as to correctly apply and the corresponding electric current of rotor magnetic pole position to stator winding.
In traditional technology, magnet ring is made into integration by nonmetallic materials, and it is by being interference fitted (tight fit) side
Formula is directly set in shaft.The magnet ring has the following disadvantages in a particular application：The tight fit side of magnet ring and shaft
Formula can cause magnet ring to have the power expanded from inside to outside from its endoporus after being installed in shaft so as to be easy to cause magnet ring cracking.This
Sample, when motor works, acted on by centrifugal force so that the cracking degree of magnet ring can be gradually increased until be completely severed and from turn
It comes off on axis, so that control circuit board can not detect the position of rotor magnetic pole, finally so that motor can not work normally.
As shown in Figure 8 and Figure 9, in order to overcome the shortcoming of above-mentioned traditional technology middle magnetic ring design, the prior art proposes
Following technical solution：Non-magnetic 12 ＇ of metal lining is added in the endoporus of nonmetallic 11 ＇ of magnet ring, then by the non-gold
Belong to 11 ＇ of magnet ring be set in 12 ＇ of metal lining in a manner of tight fit on 31 ＇ of shaft, due to caused by its tight fit to
Outer expansive force acts directly on 12 ＇ of metal lining rather than directly acts on nonmetallic 11 ＇ of magnet ring, therefore, certain
The problem of Cracking of nonmetallic 11 ＇ of magnet ring is effectively improved in degree.However, there are still following in a particular application for the technical solution
Shortcoming：
(1) magnet ring design fails to thoroughly solve the problem of Cracking of nonmetallic 11 ＇ of magnet ring, and reason is：Nonmetallic magnet ring
After 11 ＇ are pressed on by 12 ＇ of metal lining sets on 31 ＇ of shaft, 12 ＇ of metal lining can equally generate microcosmic deformation, the deformation meeting
Cause to generate microcraking at the binding site of nonmetallic 11 ＇ of magnet ring and 12 ＇ of metal lining, in this way, after motor long-term work,
It can be become larger by the effect microcraking of centrifugal force, and then result in magnet ring rupture, the situation generation for departing from shaft 31, finally
The idle situation of motor can be caused to occur.
(2) magnet ring forms axial magnetic field, and its axial magnetic line of force is closed through air, and the magnetic line of force of the closure is specific
Shape is enclosed by the first side magnetic line of force, 101 ＇, 102 ＇ of the second side magnetic line of force, the 3rd side magnetic line of force 103 ＇ and 104 ＇ of the 4th side magnetic line of force
Into, wherein 101 ＇ of the only first side magnetic line of force is located in nonmetallic 11 ＇ of magnet ring, and 102 ＇ of the second side magnetic line of force, the 3rd side magnetic force
Line 103 ＇ and 104 ＇ of the 4th side magnetic line of force are all located in air, since its most of magnetic line of force is in air, therefore, magnetic
Conductance is relatively low, and magnet ring magnetic field is weaker, in this way, can cause the actual bit of rotor-position that control circuit board detected and rotor
It puts that deviation is relatively large, and then can cause the performance degradation of motor.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, motor magnet ring, motor and washing machine are provided,
It solves existing motor magnet ring presence and ruptures and come off risk and cause the idle technical problem of motor.
In order to achieve the above objectives, the technical solution adopted by the present invention is：Motor magnet ring, including the non-gold being set in shaft
Belong to magnet ring and the metal sleeve that is sheathed on the nonmetallic magnet ring, the nonmetallic magnet ring include for the shaft set
The mounting portion of cooperation and positioned at axial direction one end of the mounting portion and for generating the magnet ring that magnetic field detects for control circuit board
Work department, the metal sleeve are sheathed on the mounting portion.
Preferably, the outer diameter of the mounting portion is less than the outer diameter of the magnet ring work department.
Preferably, the outer diameter of the metal sleeve is equal to the outer diameter of the magnet ring work department, and the one of the metal sleeve
End face is fitted closely in the magnet ring work department towards on the end face of the mounting portion.
Preferably, the metal sleeve is made of magnetic conductive metal material.
Preferably, the first endoporus being equipped with shaft interference fit is run through on the mounting portion.
Preferably, run through in the magnet ring work department and be equipped with the second endoporus for being connected with first endoporus, and described the
The aperture of two endoporus is less than the aperture of first endoporus.
Preferably, the lateral wall of the mounting portion and the magnet ring work department are led to towards between the end face of the mounting portion
The first chamfering structure transition connection is crossed, is correspondingly provided with and matched second chamfering of first chamfering structure on the metal sleeve
Structure.
Preferably, the nonmetallic magnet ring is molded on the metal sleeve.
Motor magnet ring provided by the invention, by the way that nonmetallic magnet ring is divided into mounting portion and magnet ring work department two along its axial direction
Part, and installation of the nonmetallic magnet ring in shaft is realized especially by the suit cooperation of mounting portion and shaft, pass through magnet ring
Work department generates magnetic field so that control circuit board is detected it is achieved thereby that being determined to rotor magnetic pole position.Meanwhile by
Metal sleeve is arranged outside mounting portion, in this way, on the one hand may be such that mounting portion with close-fitting stress caused by shaft close-fitting is to pass through
The mode that mounting portion is radially compressed is led to come what is discharged with prior art middle magnetic ring and close-fitting stress caused by shaft close-fitting
Crossing magnet ring circle, peripherally and outwardly expansion deformation is completely different come the mode discharged, so that there is no open mounting portion in assembling process
Split risk；The centrifugal force being subject to when on the other hand may be such that shaft rotation on mounting portion can be transferred on metal sleeve, Jin Erjin
One step effectively prevents the risk that mounting portion generates cracking.Further, since there is no directly cover between magnet ring work department and shaft
Matching relationship is filled, therefore, when motor magnet ring is installed in shaft, magnet ring work department is not acted on be subject to close-fitting stress,
And the magnet ring work department structural strength of itself is enough to bear during shaft rotation the centrifugal force suffered by it, thus, in assembling process
Cracking risk is all not present with shaft rotary course middle magnetic ring work department.It can be seen that in the present invention nonmetallic magnet ring installation
Cracking risk is all not present in portion and magnet ring work department in assembling process and shaft rotary course, and then effectively prevents due to non-
Metallic magnetic ring breakage, coming off causes the idle situation of motor to occur.
Further, due to having the one side magnetic line of force in metal sleeve in the closure magnetic line of force of nonmetallic magnet ring,
And its metal sleeve is made of magnetic conductive metal material, therefore, magnetic conductivity is high, the one side magnetic force being arranged in by this in metal sleeve
Line can effectively strengthen the magnetic field intensity of nonmetallic magnet ring, so that rotor-position that control circuit board is detected and rotor
Physical location deviation is relatively small, effectively improves the performance of motor.
Further, the present invention also provides motor, including stator, the rotor being arranged on the inside of the stator and close to institute
The control circuit board of rotor one end setting and above-mentioned motor magnet ring are stated, the rotor includes shaft and is sheathed in the shaft
Rotor body, the motor magnet ring is installed on one end of the shaft and is oppositely arranged with the control circuit board.
Motor provided by the invention, as a result of above-mentioned motor magnet ring, therefore, it ensure that control circuit board determines rotor
The reliability of position of magnetic pole ensure that the reliability of motor operation, improve the comprehensive performance of motor.
Further, the present invention also provides washing machine, with above-mentioned motor.
Washing machine provided by the invention, as a result of above-mentioned motor, therefore, improve the stable and reliable operation of washing machine
Property, and then improve the comprehensive performance of motor.
Description of the drawings
Fig. 1 is the structure diagram of motor magnet ring provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of nonmetallic magnet ring provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of metal sleeve provided in an embodiment of the present invention；
Fig. 4 is the assembling schematic diagram of motor magnet ring provided in an embodiment of the present invention and shaft；
Fig. 5 is the relative position schematic diagram of magnet ring magnetic pole and rotor magnetic pole provided in an embodiment of the present invention；
Fig. 6 is the structure diagram of motor provided in an embodiment of the present invention；
Fig. 7 is that rotor detecting location deviation of the present invention provided in an embodiment of the present invention and prior art rotor detecting location are inclined
The contrast schematic diagram of difference；
Fig. 8 is the structure diagram for the motor magnet ring that the prior art provides；
Fig. 9 is the assembling schematic diagram of the motor magnet ring that the prior art provides and shaft.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as on " being fixed on " or " being arranged at " another element, it can be direct
On another element or it may be simultaneously present centering elements.When an element is known as " connection " another element, it
Can be directly connected to another element or may be simultaneously present centering elements.
It should also be noted that, the orientation term such as left and right, upper and lower, top, bottom in following embodiment, is only opposite each other
Concept or using the normal operating condition of product as reference, and should not be regarded as restrictive.
As shown in figures 1-4, motor magnet ring 1 provided in an embodiment of the present invention, including the nonmetallic magnetic being set in shaft 31
Ring 11 and the metal sleeve 12 being sheathed on nonmetallic magnet ring 11, nonmetallic magnet ring 11 include what is coordinated with the suit of shaft 31
Mounting portion 111 and magnet ring detect positioned at axial direction one end of mounting portion 111 and for generating magnetic field for control circuit board 4 work
Portion 112, metal sleeve 12 are sheathed on mounting portion 111 and positioned at axial one end of magnet ring work department 112.The embodiment of the present invention carries
The motor magnet ring 1 of confession, by the way that nonmetallic magnet ring 11 is divided into 112 two parts of mounting portion 111 and magnet ring work department along its axial direction, and
Installation of the nonmetallic magnet ring 11 in shaft 31 is realized especially by the suit cooperation of mounting portion 111 and shaft 31, passes through magnetic
Ring work department 112 generates magnetic field so that control circuit board 4 detects it is achieved thereby that being determined to 320 position of rotor magnetic pole.Meanwhile
It outside mounting portion 111 by being arranged metal sleeve 12, in this way, on the one hand may be such that mounting portion 111 is produced with 31 close-fitting of shaft
Raw close-fitting stress is discharged in a manner that 111 radial direction of mounting portion is compressed, with prior art middle magnetic ring and shaft
Close-fitting stress caused by 31 close-fittings is justified magnet ring peripherally and outwardly expands deformation come completely different by way of discharging, so that
Cracking risk is not present in mounting portion 111 in assembling process；On the other hand it may be such that is be subject to when shaft 31 rotates on mounting portion 111
Centrifugal force can be transferred on metal sleeve 12, and then further effectively prevents the risk that mounting portion 111 generates cracking.In addition,
Due to not being set with matching relationship between magnet ring work department 112 and shaft 31 directly, therefore, turn motor magnet ring 1 is installed on
When on axis 31, magnet ring work department 112 is not acted on be subject to close-fitting stress, and magnet ring work department 112 structural strength of itself
It is enough to bear when shaft 31 rotates the centrifugal force suffered by it, thus, in 31 rotary course middle magnetic ring work of assembling process and shaft
Make portion 112 and cracking risk is all not present.It can be seen that the mounting portion 111 of nonmetallic magnet ring 11 and magnet ring work department in the present invention
112 are all not present cracking risk in 31 rotary course of assembling process and shaft, and then effectively prevent due to nonmetallic magnet ring
11 ruptures, coming off causes the idle situation of motor to occur.
Preferably, as shown in figures 1-4, run through on mounting portion 111 and be equipped with (tight fit) is interference fitted with shaft 31 first
Endoporus 1111, i.e., the cooperation between the first endoporus 1111 and shaft 31 has certain interference volume, in this way, may be such that motor magnet ring
1 installation in shaft 31 is very convenient, simple, and beneficial to the stability that guarantee motor magnet ring 1 is installed in shaft 31.Due to
Metal sleeve 12 is arranged with outside mounting portion 111, therefore, metal sleeve 12 can limit the deformation that mounting portion 111 outwards expands, so that
Mounting portion 111 and close-fitting stress caused by 31 close-fitting of shaft are discharged in a manner that 111 radial direction of mounting portion is compressed
, and then effectively eliminate mounting portion 111 and be set in the risk that cracking is generated in shaft 31.
Preferably, as shown in figures 1-4, run through in magnet ring work department 112 in second for being equipped with and being connected with the first endoporus 1111
Hole 1121, and the aperture D4 of the second endoporus 1121 is less than the aperture D5 of the first endoporus 1111.The setting of second endoporus 1121, can subtract
The material utilization amount of few nonmetallic magnet ring 11, so as to reduce the material cost of nonmetallic magnet ring 11, and can mitigate magnet ring work department
112 weight, and then beneficial to the stationarity that guarantee motor magnet ring 1 is rotated with shaft 31.The aperture D4 of second endoporus 1121 is set
Less than the aperture D5 of the first endoporus 1111, it on the one hand may be such that magnet ring work department 112 can not be set in shaft 31, avoid magnetic
Close-fitting stress is generated between ring work department 112 and shaft 31；On the other hand it is beneficial to prevent mounting portion 111 from being produced with 31 close-fitting of shaft
In raw close-fitting stress transfer to magnet ring work department 112, so as to be beneficial to prevent magnet ring work department 112 from generating cracking phenomena.
Preferably, as depicted in figs. 1 and 2, the outer diameter D 1 of mounting portion 111 is less than the outer diameter D 2 of magnet ring work department 112, that is, pacifies
The gabarit in dress portion 111 and the gabarit of magnet ring work department 112 are stepped, in this way, on the one hand may be such that mounting portion 111 and shaft 31
Close-fitting stress will not be transferred in magnet ring work department 112 caused by close-fitting, so as to be beneficial to prevent the generation of magnet ring work department 112 from opening
Split phenomenon；On the other hand can be beneficial to improve nonmetallic magnetic by the circular bead surface formed between mounting portion 111 and magnet ring work department 112
Bond strength between ring 11 and metal sleeve 12, and then beneficial to rupture, the obscission for further preventing nonmetallic magnet ring 11.
Preferably, as shown in Figures 1 to 3, the outer diameter D 3 of metal sleeve 12 is equal to the outer diameter D 2 of magnet ring work department 112, and gold
The end face for belonging to sleeve 12 is fitted closely in magnet ring work department 112 towards on the end face of mounting portion 111, in this way, on the one hand profit
It is located just in the one side magnetic line of force for ensureing to generate in magnet ring work department 112 in metal sleeve 12, on the other hand may be such that motor
The gabarit of magnet ring 1 is more concordant, and beneficial to the good appearance for improving motor magnet ring 1, another further aspect exists beneficial to nonmetallic magnet ring 11
Injection molding on metal sleeve 12.
Preferably, the axial length of metal sleeve 12 is equal with the axial length of mounting portion 111, so so that metallic sheath
One end towards magnet ring work department 112 of cylinder 12 can be fitted closely in magnet ring work department 112, metal sleeve 12 back to magnet ring
One end of work department 112 and one end back to magnet ring work department 112 of mounting portion 111 are just concordant, and one side ensure that gold
Belong to sleeve 12 to the protection effect of mounting portion 111, on the other hand may be such that the shape better appearance of motor magnet ring 1.
Preferably, metal sleeve 12 is made of magnetic conductive metal material, and magnetic conductivity is high, beneficial to the nonmetallic magnet ring 11 of raising
Magnetic field intensity.Specifically, as shown in Figure 1, the magnet ring work department 112 of nonmetallic magnet ring 11 can form axial magnetic field, and its axis
To the magnetic line of force through nonmetallic magnet ring 11, metal sleeve 12 and air ring around closure, the magnetic line of force of the closure is specifically by the first side
The magnetic line of force 101, the second side magnetic line of force 102, the 3rd side magnetic line of force 103 and the 4th side magnetic line of force 104 are enclosed, wherein, first
The side magnetic line of force 101 is arranged in nonmetallic magnet ring 11, and the second side magnetic line of force 102 is arranged in metal sleeve 12, the 3rd side magnetic force
103 and the 4th side magnetic line of force 104 of line is all located in air.Since the second side magnetic line of force 102 is located at by magnetic conductive metal material system
Into metal sleeve 12 in, therefore, which raises the magnetic field intensities of magnet ring work department 112；And as can be seen from Figure 7, magnet ring works
After the magnetic field in portion 112 is strengthened by metal sleeve 12,3 position of rotor and the physical location of rotor 3 that control circuit board 4 is detected
Deviation is reduced to θ 2 from θ 1, effectively reduces 3 position of rotor that control circuit board 4 detected and 33 physical location of rotor is inclined
Difference improves the performance of motor.
Preferably, as shown in Figures 1 to 3, the lateral wall of mounting portion 111 and magnet ring work department 112 towards mounting portion 111
It is connected between end face by 113 transition of the first chamfering structure, is correspondingly provided on metal sleeve 12 and is matched with the first chamfering structure 113
The second chamfering structure 121.First chamfering structure 113 is specifically connected to mounting portion 111 and magnet ring work department 112 in oblique convex ribs shape
Between；Run through on metal sleeve 12 be equipped with matched 3rd endoporus 122 of 111 gabarit of mounting portion, the second chamfering structure 121 is specific
In horn-like one end towards magnet ring work department 112 for being arranged on the 3rd endoporus 122.The setting of first chamfering structure 113, can strengthen
Bond strength between mounting portion 111 and magnet ring work department 112, so as to be beneficial to prevent that it is existing that nonmetallic magnet ring 11 from generating cracking easily
As.
Preferably, nonmetallic magnet ring 11 is molded on metal sleeve 12.In specific production, it will first can produce in advance
Metal sleeve 12 be positioned in the mold cavity (not shown) of nonmetallic magnet ring 11, then by adding in shape in mold cavity
Into the nonmetallic materials of nonmetallic magnet ring 11, injection can be formed after solidification to be cooled in the nonmetallic magnet ring on metal sleeve 12
11.Using this mode of production, the bond strength for improving nonmetallic magnet ring 11 and metal sleeve 12 on the one hand can be beneficial to, so as to profit
It comes off in preventing the rupture easily of nonmetallic magnet ring 11；On the other hand the follow-up of nonmetallic magnet ring 11 and metal sleeve 12 can be saved
Assembly technology, and then beneficial to raising production efficiency and avoid nonmetallic magnet ring 11 and non-gold in 12 follow-up assembling process of metal sleeve
The situation for belonging to 11 deformed damaged of magnet ring occurs.It of courses, in concrete application, nonmetallic magnet ring 11 and metal sleeve 12 also can first divide
After other machine-shaping, then metal sleeve 12 is set on the mounting portion 111 of nonmetallic magnet ring 11.
Further, as shown in Figure 4 and Figure 6, the embodiment of the present invention additionally provides motor, including stator 2, is arranged in and determines
The control circuit board 4 and above-mentioned motor magnet ring 1, rotor 33 that the rotor 3 of 2 inside of son, close 3 one end of rotor are set include shaft
31 and the rotor body 32 that is sheathed in shaft 31, stator 2 include stator core and stator winding, motor magnet ring 1, which is installed on, to be turned
One end of axis 31 is simultaneously oppositely arranged with control circuit board 4.Motor provided in this embodiment, as a result of above-mentioned motor magnet ring
1, therefore, it ensure that control circuit board 4 determines the reliability and accurate reliability of 320 position of rotor magnetic pole, ensure that motor
The reliability of operation improves the comprehensive performance of motor.
Specifically, as shown in Figure 4 and Figure 5, there is even number (being greater than or equal to two) rotor magnetic pole 321 on rotor body 32
(rotor magnetic pole of N poles and the rotor magnetic pole of S poles is circumferentially spaced be oppositely arranged), is correspondingly provided on nonmetallic magnet ring 11 and rotor
The identical magnet ring magnetic pole 110 of 321 quantity of magnetic pole (the magnet ring magnetic pole of N poles and the magnet ring magnetic pole of S poles is circumferentially spaced be oppositely arranged),
After rotor body 32 and motor magnet ring 1 are installed in shaft 31, rotor magnetic pole 321 and the magnet ring magnetic pole 110 of each identical polar exist
The mode of circumferential A in a certain angle is oppositely arranged that (rotor magnetic pole 3 of each N poles is opposite respectively with the magnet ring magnetic pole of each N poles, each S poles
Rotor magnetic pole and each S poles magnet ring magnetic pole it is opposite respectively).Due to the included angle A between rotor magnetic pole 321 and magnet ring magnetic pole 110
Value is determined for one, therefore, as long as the position of magnet ring magnetic pole 110 can be detected, you can determine the position of rotor magnetic pole 321, so as to
Correctly apply and the corresponding electric current in 321 position of rotor magnetic pole to stator winding.
Specifically, as shown in fig. 6, motor further includes drive end bearing bracket 5, rear end cap 6, fore bearing 7 and rear bearing 8, rotor body
32nd, fore bearing 7 and rear bearing 8 are all installed in shaft 31, and fore bearing 7 and rear bearing 8 are located at the two of rotor body 32 respectively
Side is simultaneously contained in drive end bearing bracket 5 and rear end cap 6 respectively, and shaft 31 has oppositely arranged output terminal and non-output terminal, output terminal
5 external application of drive end bearing bracket is worn out so that load is installed, non-output terminal is arranged in rear end cap 6.Motor magnet ring 1 is installed on non-output
End, rear bearing 8 between rotor body 32 and motor magnet ring 1, control circuit board 4 be installed on rear end cap 6 and with motor magnetic
Ring 1 is oppositely arranged, i.e., control circuit board 4 is oppositely arranged with motor magnet ring 1 along shaft 31 is axial in front and rear.Wherein, control circuit
Plate 4 specifically may include wiring board and the Hall element on wiring board.
Preferably, either permanent magnet synchronous motor is when brshless DC motor or forever for brshless DC motor for above-mentioned motor
When magnetic-synchro motor uses above-mentioned motor magnet ring 1, the raising motor operation reliability and optimization motor performance that obtain
Effect it is especially pronounced.
Further, the embodiment of the present invention additionally provides washing machine, with above-mentioned motor.Washing machine is in different operating
Under state, the output speed of motor will be different, and due to which employs above-mentioned motor, so that motor is in washing machine
Output speed under each working condition all compares accurately and reliably, and ensure that the operation steady in a long-term of motor, is washed so as to ensure that
The operational reliability of clothing machine improves the comprehensive performance of washing machine, beneficial to raising user to the satisfaction of product, and then is beneficial to carry
The market competitiveness of high product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (7)
1. motor magnet ring, it is characterised in that：Including the nonmetallic magnet ring being set in shaft and it is sheathed on the nonmetallic magnet ring
On metal sleeve, the nonmetallic magnet ring includes for the mounting portion that coordinates with the shaft set and positioned at the mounting portion
Axial direction one end and for generating the magnet ring work department that magnetic field detect for control circuit board, described in the metal sleeve is sheathed on
On mounting portion；The metal sleeve is made of magnetic conductive metal material；The outer diameter of the metal sleeve is equal to the magnet ring work department
Outer diameter, and the end face of the metal sleeve is fitted closely in the end face towards the mounting portion of the magnet ring work department
On；The nonmetallic magnet ring is molded on the metal sleeve.
2. motor magnet ring as described in claim 1, it is characterised in that：The outer diameter of the mounting portion is less than the magnet ring work department
Outer diameter.
3. motor magnet ring as claimed in claim 1 or 2, it is characterised in that：Run through on the mounting portion and be equipped with and the shaft
First endoporus of interference fit.
4. motor magnet ring as claimed in claim 3, it is characterised in that：Run through in the magnet ring work department and be equipped with and described first
Second endoporus of endoporus connection, and the aperture of second endoporus is less than the aperture of first endoporus.
5. such as 1 or 2 any one of them motor magnet ring of claim, it is characterised in that：The lateral wall of the mounting portion with it is described
Being connected towards between the end face of the mounting portion by the first chamfering structure transition for magnet ring work department, it is right on the metal sleeve
It should be equipped with and matched second chamfering structure of first chamfering structure.
6. motor, including stator, the rotor being arranged on the inside of the stator and the control circuit set close to described rotor one end
Plate, the rotor include shaft and the rotor body being sheathed in the shaft, it is characterised in that：Further include such as claim 1
To 5 any one of them motor magnet rings, the motor magnet ring be installed on one end of the shaft and with the control circuit board phase
To setting.
7. washing machine, it is characterised in that：With motor as claimed in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398428.0A CN104979968B (en) | 2015-07-07 | 2015-07-07 | Motor magnet ring, motor and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398428.0A CN104979968B (en) | 2015-07-07 | 2015-07-07 | Motor magnet ring, motor and washing machine |
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| Publication Number | Publication Date |
|---|---|
| CN104979968A CN104979968A (en) | 2015-10-14 |
| CN104979968B true CN104979968B (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510398428.0A Active CN104979968B (en) | 2015-07-07 | 2015-07-07 | Motor magnet ring, motor and washing machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106936238A (en) * | 2015-12-30 | 2017-07-07 | 博世汽车部件(长沙)有限公司 | Magnet ring and the motor with it |
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|---|---|---|---|---|
| US4742259A (en) * | 1987-05-11 | 1988-05-03 | Franklin Electric Co., Inc. | Permanent magnet rotor for electric motor |
| CN201601541U (en) * | 2009-12-02 | 2010-10-06 | 珠海格力电器股份有限公司 | Motor rotor and motor |
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|---|---|---|---|---|
| JPH10322976A (en) * | 1997-05-12 | 1998-12-04 | Kusatsu Denki Kk | Rotor |
| CN200953526Y (en) * | 2006-05-19 | 2007-09-26 | 杨光笋 | DC brushless motor Hall device sensor |
| CN201222668Y (en) * | 2008-06-30 | 2009-04-15 | 四川晨洋科技研究所有限公司 | Numerical control linear motor mover for oil extraction device |
| JP2013207817A (en) * | 2012-03-27 | 2013-10-07 | Toshiba Corp | Electric motor and electric blower |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742259A (en) * | 1987-05-11 | 1988-05-03 | Franklin Electric Co., Inc. | Permanent magnet rotor for electric motor |
| CN201601541U (en) * | 2009-12-02 | 2010-10-06 | 珠海格力电器股份有限公司 | Motor rotor and motor |
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| CN104979968A (en) | 2015-10-14 |
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