CN108233565A - Motor, compressor and refrigeration equipment - Google Patents
Motor, compressor and refrigeration equipment Download PDFInfo
- Publication number
- CN108233565A CN108233565A CN201810273334.4A CN201810273334A CN108233565A CN 108233565 A CN108233565 A CN 108233565A CN 201810273334 A CN201810273334 A CN 201810273334A CN 108233565 A CN108233565 A CN 108233565A
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- rotor
- winding
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides a kind of motor, compressor and refrigeration equipment, wherein, motor includes：Stator core, the rotor hole that stator core is provided through, multiple first stator tooths and multiple second stator tooths that stator core includes being arranged alternately and quantity is equal, the maximum facewidth of second stator tooth is less than the minimum facewidth of the first stator tooth, and the width of the tooth root of the second stator tooth is more than the width of the tooth top of the second stator tooth；Stator winding, around the home on the first stator tooth；Rotor is arranged in rotor hole.Motor provided by the invention, it is more than the width of tooth top by the width that the structure of the second stator tooth is set as to tooth root, so that the gap increase at the tooth top of the second stator tooth between the first stator tooth, it and then can be with the stator winding of winding more multi-coil, so as to improve the efficiency of motor, it realizes the high power density of motor, reduces the manufacture cost of motor.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of motor, compressor and refrigeration equipment.
Background technology
Permanent magnet synchronous motor uses concentrating winding group at present, and each coil of concentratred winding motor is wound on a stator tooth
On, the tip lengths of winding and the axial length of motor are shortened, reduce copper consumption, reduce total copper loss of motor, and then
Improve the efficiency of motor.The slot number that volume commonly uses is concentrated to match and is combined into 6 slot, 4 pole, 9 slot, 6 pole, 12 slot, 8 pole (as shown in Figure 1),
The winding coefficient of motor is 0.866, and the winding coefficient for being distributed 18 slot of volume, 6 pole is 1, but 18 slot of distribution volume, 6 extreme portions are high, use copper
Amount is big, and copper wire utilization rate reduces.Therefore, in order to further improve copper wire utilization rate, keep concentrating winding group end low the characteristics of,
It needs to improve winding coefficient.The concentration volume slot number of high winding coefficient is combined with 9 slot, 8 pole, winding coefficient 0.945, but exist not
Magnetic pull problem is balanced, bearing uneven wear can be caused.Therefore, it is necessary to for improve winding coefficient new stator structure and
The fit structure for how further improving motor working efficiency is studied.
Invention content
At least one in order to solve the above-mentioned technical problem, the embodiment of the first aspect of the present invention proposes a kind of motor.
A kind of the second aspect of the present invention embodiment, it is also proposed that compressor.
A kind of the third aspect of the present invention embodiment, it is also proposed that refrigeration equipment.
In view of this, embodiment according to the first aspect of the invention, the present invention propose a kind of motor, including：Stator
Iron core, the rotor hole that stator core is provided through, stator core include multiple first stators being arranged alternately and quantity is equal
Tooth and multiple second stator tooths, the maximum facewidth of the second stator tooth are less than the minimum facewidth of the first stator tooth, the second stator tooth
The width of tooth root is more than the width of the tooth top of the second stator tooth；Stator winding, around the home on the first stator tooth；Rotor is arranged on
In rotor hole.
Motor provided by the invention, by being arranged alternately multiple first stator tooths of setting and second successively on stator core
Stator tooth, and by the structure of the second stator tooth be set as tooth root width be more than tooth top width so that the tooth of the second stator tooth
Gap increase at top between the first stator tooth, and then can be with the stator winding of winding more multi-coil, so as to improve motor
Efficiency realizes the high power density of motor, reduces the manufacture cost of motor；Wherein, copper wire can be used in stator winding, by above-mentioned
Structure, in the identical number of turn, thicker electric wire can be used in winding wire diameter, and winding cross section product becomes larger, and resistance declines, motor effect
Rate improves, while current density declines, and in the case where keeping current density identical, the electric current bigger that is passed through, output torque becomes
Greatly, so as to improve the power density of motor.
In addition, the maximum facewidth of the second stator tooth is less than the minimum facewidth of the first stator tooth, the first stator tooth therein
The facewidth can be constant, or variation.
In addition, the motor in above-described embodiment provided by the invention can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that the width of the tooth top of the width of the tooth root of the second stator tooth and the second stator tooth
The difference of degree is more than or equal to 0.5mm and less than or equal to 5mm.
In the technical scheme, the width of the tooth root of the second stator tooth and the difference of the width of the tooth top of the second stator tooth are big
In equal to 0.5mm and less than or equal to 5mm, usually, the width of tooth root to the tooth top of the second stator tooth is gradually reduced, two width it
Between difference preferably for 2mm or 3mm, in order to stator core manufacture and ensure the enough intensity of the second stator tooth itself.
In any of the above-described technical solution, it is preferable that the gap shape between adjacent the first stator tooth and the second stator tooth
Into slot for winding, the width of the notch towards rotor of slot for winding is more than or equal to 1mm and less than or equal to 4mm.
In the technical scheme, the gap between adjacent the first stator tooth and the second stator tooth forms slot for winding, winding
The width of the notch towards rotor of slot is more than or equal to 1mm and less than or equal to 4mm, in order in the tooth top close to the first stator tooth
The stator winding of portion's winding more multi-coil so as to improve the efficiency of motor, realizes the high power density of motor, reduces the system of motor
Cause this.Wherein, the width of notch is preferably 3.2mm, in order to coiling.
In any of the above-described technical solution, it is preferable that center of circle central symmetry of the stator core about rotor hole.
In the technical scheme, stator core about the center of circle central symmetry of rotor hole in order to the magnetic field generated by stator
It is uniformly distributed, and then improves the working efficiency of motor.
In any of the above-described technical solution, it is preferable that the pitch of stator winding is equal to the pole span of motor.
In the technical scheme, the winding coefficient of motor is equal to the product of motor breadth coefficient and pitch percent, pass through by
The pitch of stator winding is equal to the pole span of motor so that the pitch percent of motor is equal to 1, so as to improve the winding of motor
Coefficient, and then improve the working efficiency of motor.
In any of the above-described technical solution, it is preferable that the width of the tooth top of the first stator tooth is equal to the pole span of motor.
In the technical scheme, the width of the tooth top of the first stator tooth is equal to the pole span of motor, by by the first stator tooth
The width design of tooth top be adjusted to the size of pole span, can further increase the improvement effect of motor torque.
In any of the above-described technical solution, it is preferable that the pitch of stator winding for the first stator tooth tooth top both ends with
The angle of the line in the center of circle of rotor hole；The pole span edge of motor is by angle shared on the circumference in the center of circle of the center of circle of rotor hole
The ratio of 180 degree and the number of pole-pairs of motor.
In the technical scheme, using the angle of the both ends of the tooth top of the first stator tooth and the line in the center of circle of rotor hole as
The pitch of stator winding with angle represents and limits the pitch of stator winding, alternatively, it is also possible to by the slot of the first stator tooth both sides
Mouthful midpoint and rotor hole the center of circle line pitch of the angle as stator winding, improve the pitch for stator winding
Calculated value is more matched with rotor magnet；The pole span of motor can also angle represent, specifically, can be by the pole span of motor along to turn
The center of circle of sub-aperture is the pole span of ratio that angle shared on the circumference in the center of circle is 180 degree and the number of pole-pairs of motor as motor.
In any of the above-described technical solution, it is preferable that motor is permanent magnet synchronous motor；And/or laminating stator iron core or turn
The thickness of the silicon steel plate of the rotor core of son is more than or equal to 0.3mm and less than or equal to 0.5mm.
In the technical scheme, above-mentioned motor is the rotor core of permanent magnet synchronous motor, wherein stator core or rotor
It is stacked by silicon steel plate, the thickness of silicon steel plate is more than or equal to 0.3mm and less than or equal to 0.5mm, in order to stator core and turns
The manufacture of sub- iron core.
In any of the above-described technical solution, it is preferable that the magnet slot of rotor be V-shape or "-" type, the rotor magnetic of rotor
Iron is arranged in magnet slot, and rotor magnet is adapted with magnet slot；And/or the rotor magnet of rotor for rare-earth Nd-Fe-B magnet or
Ferrite lattice.
In the technical scheme, the magnet slot of rotor is V-shape or "-" type, accordingly, is set in magnet slot and turns
Sub- magnet is alternatively V-shape or "-" type, and wherein the magnet slot of "-" type and rotor magnet convenient for manufacture and are installed, and V-shape
Magnet slot and rotor magnet be conducive to further improve torque and the working efficiency of motor；Wherein, the rotor magnet of rotor
Rare-earth Nd-Fe-B magnet or ferrite lattice are chosen as, in order to ensure the efficient long-acting of rotor magnet, so as to improve motor
Torque and working efficiency, and cause motor power density improve, be advantageously implemented motor miniaturization.
The compressor that the embodiment of second aspect of the present invention provides, including：The motor of first aspect embodiment.
Compressor provided by the invention, by using above-mentioned motor, thus with its whole beneficial technique effect,
The working efficiency of compressor can be effectively improved, and reduce its operating power consumption simultaneously.
The refrigeration equipment that the embodiment of third aspect present invention provides, including：The motor of first aspect embodiment or second
The compressor of aspect embodiment.
Refrigeration equipment provided by the invention, by using above-mentioned motor or compressor, so as to the beneficial of its whole
Technique effect, while the working efficiency of refrigeration equipment can be effectively improved, and reduce its operating power consumption.
The additional aspect and advantage of the present invention will become practice apparent or by the present invention in following description section
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 is a kind of structure diagram of motor in the prior art；
Fig. 2 is the structure diagram of an embodiment of the present invention；
Fig. 3 is the winding connecting structure schematic diagram of motor shown in Fig. 2；
Fig. 4 is the schematic diagram of motor shown in Fig. 3 and Emulation of Electrical Machinery non-loaded line counter potential waveform shown in Fig. 1；
Fig. 5 is motor shown in Fig. 3 and the schematic diagram of electric efficiency under the actual measurement different loads of motor shown in Fig. 1.
Wherein, the correspondence in Fig. 2 between reference numeral and component names is：
1 stator core, 102 first stator tooths, 104 second stator tooths, 106 slot for windings, 2 stator winding, 3 rotors, 302 magnetic
Metal trough, 304 rotor magnets.
Specific embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The motor described according to some embodiments of the invention is described referring to Fig. 2 to Fig. 5.
As shown in Figures 2 and 3, the present invention provides a kind of motor, including：Stator core 1, stator core 1, which is provided with, to be passed through
The rotor hole worn, multiple first stator tooths 102 and multiple second stator tooths that stator core 1 includes being arranged alternately and quantity is equal
104, the maximum facewidth of the second stator tooth 104 is less than the minimum facewidth of the first stator tooth 102, the tooth root of the second stator tooth 104
Width is more than the width of the tooth top of the second stator tooth 104；Stator winding 2, around the home on the first stator tooth 102；Rotor 3, setting
In rotor hole.
Motor provided by the invention, by being arranged alternately multiple first stator tooth, 102 Hes of setting successively on stator core 1
Second stator tooth 104, and by the structure of the second stator tooth 104 be set as tooth root width be more than tooth top width so that second
Gap increase at the tooth top of stator tooth 104 between the first stator tooth 102, and then can be with the stator winding of winding more multi-coil
2, it so as to improve the efficiency of motor, realizes the high power density of motor, reduces the manufacture cost of motor；Wherein, stator winding 2 can
Using copper wire, by above structure, in the identical number of turn, thicker electric wire can be used in winding wire diameter, and winding cross section product becomes
Greatly, resistance declines, and electric efficiency improves, while current density declines, in the case where keeping current density identical, the electricity that is passed through
Bigger is flowed, output torque becomes larger, so as to improve the power density of motor.
In addition, the maximum facewidth of the second stator tooth 104 is less than the minimum facewidth of the first stator tooth 102, therein first is fixed
The facewidth of sub- tooth 102 can be constant, or variation.Wherein, the quantity of the first stator tooth 102 is equal to the second stator
The quantity of tooth 104, the multiple that it is 3 that the quantity of the two is preferable, such as 6 or 9 etc..
In one embodiment of the invention, it is preferable that as shown in Fig. 2, the width of the tooth root of the second stator tooth 104 and
The difference of the width of the tooth top of two stator tooths 104 is more than or equal to 0.5mm and less than or equal to 5mm.
In this embodiment, the difference of the width of the tooth top of the width of the tooth root of the second stator tooth 104 and the second stator tooth 104
Value is more than or equal to 0.5mm and is less than or equal to 5mm, and usually, the width of tooth root to the tooth top of the second stator tooth 104 is gradually reduced,
Difference between two width is preferably 2mm or 3mm, manufacture and guarantee the second stator tooth 104 itself in order to stator core 1
Enough intensity.
In one embodiment of the invention, it is preferable that as shown in Fig. 2, the first adjacent stator tooth 102 and the second stator
Gap between tooth 104 forms slot for winding 106, and the width of the notch towards rotor 3 of slot for winding 106 is more than or equal to 1mm and small
In equal to 4mm.
In this embodiment, the gap between adjacent the first stator tooth 102 and the second stator tooth 104 forms slot for winding
106, the width of the notch towards rotor 3 of slot for winding 106 is more than or equal to 1mm and less than or equal to 4mm, in order to close to first
The stator winding 2 of the tooth crest winding more multi-coil of stator tooth 102, so as to improve the efficiency of motor, realizes the high power of motor
Density reduces the manufacture cost of motor.Wherein, the width of notch is preferably 3.2mm, in order to coiling.
In one embodiment of the invention, it is preferable that as shown in Fig. 2, center of circle center of the stator core 1 about rotor hole
Symmetrically.
In this embodiment, stator core 1 about the center of circle central symmetry of rotor hole in order to the magnetic field generated by stator
It is uniformly distributed, and then improves the working efficiency of motor.
In one embodiment of the invention, it is preferable that as shown in Fig. 2, the pitch of stator winding 2 is equal to the pole of motor
Away from.
In this embodiment, the winding coefficient of motor is equal to the product of motor breadth coefficient and pitch percent, by that will determine
The pitch of sub- winding 2 is equal to the pole span of motor so that the pitch percent of motor is equal to 1, so as to improve the winding of motor
Coefficient, and then improve the working efficiency of motor.
In one embodiment of the invention, it is preferable that as shown in Fig. 2, the width of the tooth top of the first stator tooth 102 is equal to
The pole span of motor.
In this embodiment, the width of the tooth top of the first stator tooth 102 is equal to the pole span of motor, by by the first stator tooth
The width design of 102 tooth top is adjusted to the size of pole span, can further increase the improvement effect of motor torque.
In one embodiment of the invention, it is preferable that as shown in Fig. 2, the pitch of stator winding 2 is the first stator tooth
The angle of the line in the both ends of 102 tooth top and the center of circle of rotor hole；The pole span of motor is along using the center of circle of rotor hole as the center of circle
Ratio of the shared angle for 180 degree and the number of pole-pairs of motor on circumference.
In this embodiment, the angle of the both ends of the tooth top of the first stator tooth 102 and the line in the center of circle of rotor hole is made
For the pitch of stator winding 2, the pitch of stator winding 2 is represented and limited with angle, alternatively, it is also possible to by the first stator tooth 102
Pitch of the angle of the line in the midpoint of the notch of both sides and the center of circle of rotor hole as stator winding 2, improve for stator around
The calculated value of the pitch of group 2 is more matched with rotor magnet 304；The pole span of motor can also angle represent, specifically, can will be electric
The pole span of machine is made along by the ratio that angle shared on the circumference in the center of circle is 180 degree and the number of pole-pairs of motor of the center of circle of rotor hole
Pole span for motor.
In one embodiment of the invention, it is preferable that motor is permanent magnet synchronous motor；And/or laminating stator iron core 1 or
The thickness of the silicon steel plate of the rotor core of rotor 3 is more than or equal to 0.3mm and less than or equal to 0.5mm.
In this embodiment, above-mentioned motor is permanent magnet synchronous motor, the wherein rotor core of stator core 1 or rotor 3
It is stacked by silicon steel plate, the thickness of silicon steel plate is more than or equal to 0.3mm and less than or equal to 0.5mm, in order to stator core 1 and turns
The manufacture of sub- iron core, the thickness of silicon steel plate is preferably 0.3mm.
In one embodiment of the invention, it is preferable that as shown in Fig. 2, the magnet slot 302 of rotor 3 is V-shape or a word
Type, the rotor magnet 304 of rotor 3 are arranged in magnet slot 302, and rotor magnet 304 is adapted with magnet slot 302；And/or rotor
3 rotor magnet 304 is rare-earth Nd-Fe-B magnet or ferrite lattice.
In this embodiment, the magnet slot 302 of rotor 3 is V-shape or "-" type, accordingly, is set in magnet slot 302
Rotor magnet 304 or V-shape or "-" type, wherein the magnet slot 302 of "-" type and rotor magnet 304 convenient for manufacture and
Installation, and the magnet slot 302 of V-shape and rotor magnet 304 are conducive to further improve torque and the working efficiency of motor；Its
In, the rotor magnet 304 of rotor 3 is chosen as rare-earth Nd-Fe-B magnet or ferrite lattice, in order to ensure rotor magnet 304
Efficient long-acting so as to improve the torque and working efficiency of motor, and causes the power density of motor to improve, is advantageously implemented
Motor minimizes.
In one embodiment of the invention, it is preferable that as shown in Figures 2 and 3, the first stator tooth 102 and in stator
The quantity of two stator tooths 104 is 6, and the two quantity is 3 multiple, and multiple slot for windings 106 are in center pair around rotor hole
Title formula is arranged, wherein stator rabbet is set as 3.2mm, is conducive to coiling.
Wherein it is possible to using the line in the notch midpoint of slot for winding 106 and the center of circle of rotor hole as boundary line computation first
102 and second stator tooth 104 of stator tooth circumferentially shared angle, wherein circumferentially shared angle, θ 1 is the first stator tooth 102
45 degree, circumferentially shared angle, θ 2 is 15 degree to the second stator tooth 104, wherein, θ 1 is more than θ 2, the first stator tooth 102 circumferentially institute
The angle, θ 1 accounted for is equal to 3 one magnetic poles of rotor circumferentially shared angle, and the even number of pole-pairs of motor is p=4, meets θ 1=
360/2p=45 degree.
Wherein, 104 trapezoidal structure of the second stator tooth, the second stator tooth 104 is for the setting of the facewidth such as not and far from rotor hole
Center of circle end facewidth bigger, the facewidth close to the center of circle end of rotor hole is L1, second center of circle of the stator tooth 104 far from rotor hole
The facewidth at end is L2, and meets 0.5mm≤L2-L1≤5mm, under the premise of the second stator tooth of guarantee 104 is sufficiently rigid, is made
It obtains slot for winding 106 close to the space at center of circle end to become larger, 106 area of slot for winding becomes larger, and is conducive to slot bottom coiling so that motor can
To place more copper wire, in the identical number of turn, winding wire diameter is thicker, and winding cross section product becomes larger, and resistance declines, motor effect
Rate improves；Current density declines, and in the case of keeping current density identical, the electric current that is passed through can be with bigger, and then output torque
Become larger, the power density of motor improves.
Wherein, the first stator tooth 102 for etc. facewidth setting, stator winding 2 is around the home on the first stator tooth 102, in Fig. 2
Stator winding 2 is concentratred winding, and it is a coil group that one extremely lower, and therefore, motor breadth coefficient Kd1 of the invention is 1；One
The pitch y for extremely descending 2 coil of stator winding is the first stator tooth 102 circumferentially shared 45 degree of angle, and the pole span of motor is circumferentially
Shared angle is τ=360/2p=45 degree, and the pitch percent of motor of the present invention is Kp1=sin (y*90/ τ)=1.Therefore, it is electric
The winding coefficient of machine is Kdp=Kd1*Kp1=1, so that the present invention realizes that the winding coefficient for concentrating volume reaches maximum value 1.
Alternatively, in another embodiment, the cooperation of motor slot number is 12 slot, 10 pole, including 6 the first stator tooths
102 and 6 the second stator tooths 104, can make the θ 1=36 degree in the embodiment, θ 2=24 degree, and 6 coil windings exist around the home respectively
On first stator tooth 102, it can equally cause the winding coefficient rolled up is concentrated to reach maximum value 1.
In addition, in fig. 2, rotor 3 is using " V " font magnet slot 302, the high rare-earth Nd-Fe-B magnetic of the preferred magnetic property of magnet
Iron so that the power density of motor improves, and is advantageously implemented motor miniaturization.
Fig. 1 is using the structure diagram of 12 slot, 8 pole motor, winding coefficient 0.866 in the relevant technologies.It is keeping scheming
In embodiment shown in 1 under the winding total number of turns of 12 slot, 8 pole and new motor structure of the present invention, 3 structure unanimous circumstances of rotor, obtain
To the emulation non-loaded line counter potential waveform of motor shown in new motor structure shown in Fig. 2 of the present invention shown in Fig. 4 and Fig. 1, electricity in Fig. 1
Machine back emf coefficient is 33.7V/krpm, winding back emf coefficient 39.2V/krpm of the invention in Fig. 2, motor of the present invention it is anti-
Potential improves about 16.3% compared to conventional example, can effectively improve the working efficiency of motor.Meanwhile above-mentioned the two is to obtain
Identical power output, copper wire dosage can reduce about 50 grams in the present invention, and motor cost reduces about 2.5 yuan.
The winding coefficient of motor improves, and the copper loss of motor reduces so that electric efficiency improves, and Fig. 5 is shown in Fig. 2 of the present invention
The schematic diagram of electric efficiency under the actual measurement different loads of new motor structure and motor shown in FIG. 1, wherein, rotating speed 1800rpm,
Under conditions of torque 1.2N.m and 1.46N.m, the electric efficiency absolute value of motor of the invention improves 0.5%, thus effectively
It improves the working efficiency of motor and helps to reduce the power consumption of motor.
The motor that the embodiment of the present invention is provided can be permanent magnet synchronous motor, and improve permanent magnet synchronous motor
Winding coefficient realizes that the winding coefficient for concentrating volume reaches maximum value 1, so as to improve the utilization rate of electric efficiency and copper wire, realizes
The high power density of motor, while can also reduce the dosage of copper wire, reduce motor cost.
The present invention also provides a kind of compressor, including：The motor of first aspect embodiment.
Compressor provided by the invention, by using above-mentioned motor, thus with its whole beneficial technique effect,
The working efficiency of compressor can be effectively improved, and reduce its operating power consumption simultaneously.
The present invention also provides a kind of refrigeration equipment, including：The motor of first aspect embodiment or second aspect embodiment
Compressor.
Refrigeration equipment provided by the invention, by using above-mentioned motor or compressor, so as to the beneficial of its whole
Technique effect, while the working efficiency of refrigeration equipment can be effectively improved, and reduce its operating power consumption.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
The terms such as dress ", " connected ", " connection ", " fixation " should all be interpreted broadly, for example, " connection " can be fixedly connected, it can also
It is to be detachably connected or be integrally connected；" connected " can be directly connected, and can also be indirectly connected by intermediary.It is right
For those of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of motor, which is characterized in that including：
Stator core, the rotor hole that the stator core is provided through, the stator core includes being arranged alternately and quantity phase
Deng multiple first stator tooths and multiple second stator tooths, the maximum facewidth of second stator tooth be less than first stator tooth
The minimum facewidth, the width of the tooth root of second stator tooth is more than the width of the tooth top of second stator tooth；
Stator winding, around the home on first stator tooth；
Rotor is arranged in the rotor hole.
2. motor according to claim 1, which is characterized in that
The width of the tooth root of second stator tooth and the difference of the width of the tooth top of second stator tooth are more than or equal to 0.5mm
And less than or equal to 5mm.
3. motor according to claim 1, which is characterized in that
Gap between adjacent first stator tooth and second stator tooth forms slot for winding, the direction of the slot for winding
The width of the notch of the rotor is more than or equal to 1mm and less than or equal to 4mm.
4. motor according to claim 1, which is characterized in that
Center of circle central symmetry of the stator core about the rotor hole.
5. motor according to any one of claim 1 to 4, which is characterized in that
The pitch of the stator winding is equal to the pole span of the motor.
6. motor according to claim 5, which is characterized in that
The width of the tooth top of first stator tooth is equal to the pole span of the motor.
7. motor according to claim 5, which is characterized in that
The pitch of the stator winding is the both ends of the tooth top of first stator tooth and the line in the center of circle of the rotor hole
Angle；
The pole span of the motor is 180 degree and the electricity along by angle shared on the circumference in the center of circle of the center of circle of the rotor hole
The ratio of the number of pole-pairs of machine.
8. motor according to any one of claim 1 to 4, which is characterized in that
The motor is permanent magnet synchronous motor；And/or
The thickness for laminating the silicon steel plate of the rotor core of the stator core or the rotor is more than or equal to 0.3mm and is less than or equal to
0.5mm。
9. motor according to any one of claim 1 to 4, which is characterized in that
The magnet slot of the rotor is V-shape or "-" type, and the rotor magnet of the rotor is arranged in the magnet slot, described
Rotor magnet is adapted with the magnet slot；And/or
The rotor magnet of the rotor is rare-earth Nd-Fe-B magnet or ferrite lattice.
10. a kind of compressor, which is characterized in that including：
Motor as claimed in any one of claims 1-9 wherein.
11. a kind of refrigeration equipment, which is characterized in that including：
Motor as claimed in any one of claims 1-9 wherein；Or
Compressor as claimed in claim 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810273334.4A CN108233565B (en) | 2018-03-29 | 2018-03-29 | Motor, compressor and refrigeration plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810273334.4A CN108233565B (en) | 2018-03-29 | 2018-03-29 | Motor, compressor and refrigeration plant |
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| CN108233565A true CN108233565A (en) | 2018-06-29 |
| CN108233565B CN108233565B (en) | 2020-06-05 |
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| CN201810273334.4A Active CN108233565B (en) | 2018-03-29 | 2018-03-29 | Motor, compressor and refrigeration plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768422A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with same |
| CN110875652A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝制冷设备有限公司 | Motor rotor, motor and compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050212374A1 (en) * | 2004-01-14 | 2005-09-29 | Rolls-Royce Plc | Electrical machine |
| CN201057630Y (en) * | 2007-06-06 | 2008-05-07 | 上海特波电机有限公司 | Low-fluctuating permanent magnet brushless motor with structure of different width |
| CN101411036A (en) * | 2006-02-28 | 2009-04-15 | 斯玛特电机公司 | An electrical machine having a stator with rectangular and trapezoidal teeth |
| CN102468695A (en) * | 2010-11-05 | 2012-05-23 | 丰田自动车株式会社 | Stator core |
| CN103208871A (en) * | 2012-01-13 | 2013-07-17 | 发那科株式会社 | Electric Motor Comprising Iron Core Having Primary Teeth And Secondary Teeth |
| CN104836350A (en) * | 2014-08-27 | 2015-08-12 | 宁波高新区南牛电机技术有限公司 | Fractional slot concentrated winding stator |
| CN208028668U (en) * | 2018-03-29 | 2018-10-30 | 广东美芝制冷设备有限公司 | Motor, compressor and refrigeration equipment |
-
2018
- 2018-03-29 CN CN201810273334.4A patent/CN108233565B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050212374A1 (en) * | 2004-01-14 | 2005-09-29 | Rolls-Royce Plc | Electrical machine |
| CN101411036A (en) * | 2006-02-28 | 2009-04-15 | 斯玛特电机公司 | An electrical machine having a stator with rectangular and trapezoidal teeth |
| CN201057630Y (en) * | 2007-06-06 | 2008-05-07 | 上海特波电机有限公司 | Low-fluctuating permanent magnet brushless motor with structure of different width |
| CN102468695A (en) * | 2010-11-05 | 2012-05-23 | 丰田自动车株式会社 | Stator core |
| CN103208871A (en) * | 2012-01-13 | 2013-07-17 | 发那科株式会社 | Electric Motor Comprising Iron Core Having Primary Teeth And Secondary Teeth |
| CN104836350A (en) * | 2014-08-27 | 2015-08-12 | 宁波高新区南牛电机技术有限公司 | Fractional slot concentrated winding stator |
| CN208028668U (en) * | 2018-03-29 | 2018-10-30 | 广东美芝制冷设备有限公司 | Motor, compressor and refrigeration equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768422A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with same |
| CN110768422B (en) * | 2018-07-27 | 2022-03-01 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with same |
| CN110875652A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝制冷设备有限公司 | Motor rotor, motor and compressor |
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| Publication number | Publication date |
|---|---|
| CN108233565B (en) | 2020-06-05 |
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