CN102780337A - Twelve-groove ten-pole three-phase direct current brushless motor and stator winding method thereof - Google Patents
Twelve-groove ten-pole three-phase direct current brushless motor and stator winding method thereof Download PDFInfo
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- CN102780337A CN102780337A CN2012102399267A CN201210239926A CN102780337A CN 102780337 A CN102780337 A CN 102780337A CN 2012102399267 A CN2012102399267 A CN 2012102399267A CN 201210239926 A CN201210239926 A CN 201210239926A CN 102780337 A CN102780337 A CN 102780337A
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Abstract
The invention provides a twelve-groove ten-pole three-phase direct current brushless motor and a stator winding method thereof. The method comprises the following steps of: providing twelve tooth groove stators and a ten-magnetic pole rotor, so that arc surfaces of the tail ends of toothed grooves of the stator are concentric with arc surfaces of the inner surfaces of magnetic poles; providing a three-phase coil winding, winding a section of wire in a one-phase winding coil on a toothed groove corresponding to a winding initial point towards the clockwise direction starting from the winding initial point, winding for multiple turns, leading the coils to the fifth toothed groove in a direction from back to front, winding by multiple turns once more, and terminating at a winding termination point corresponding to the winding initial point; winding another section of wire in the coil on the sixth toothed groove in the direction from back to front towards the clockwise direction starting from the winding termination point, winding for multiple turns, leading the coils to the eleventh toothed groove in the direction from back to front, winding for multiple turns, and terminating at a winding initial point; and finally, winding the additional two-phase coil according to the mode. Therefore, the phenomenon of winding in the reverse direction can be avoided, and the requirement on the winding equipment is reduced, so that the winding equipment is easy and convenient to manufacture.
Description
Technical field
The present invention relates to belong to the brushless electric machine field of the external rotor form of air conditioning for automobiles, particularly relate to the method for winding of a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors and stator thereof.
Background technology
Along with the continuous development of auto industry, to auto parts and components require increasingly highly, performance demands is not only arranged, and also has energy-conservation and the requirement environmental protection aspect.Still the brush motor of air conditioning for automobiles use at present; Aspect performance and energy-conserving and environment-protective all not as good as brushless electric machine; Along with the performance of electronic devices and components improves constantly and the continuous reduction of price; Advantages such as high efficiency that brushless electric machine has, low noise, long-life, being used for substituting brush motor will be inexorable trend.
At present to using on air conditioning for automobiles and the brushless electric machine of exploitation, employing six grooves four utmost points that groove number and number of poles are combined with, the employing 12 groove ends of the earth that also have; The wire casing or the pole shoe of six or 12 coilings are just arranged on stator, and four or eight South Pole that replaces and arctic magnet steel are arranged on rotor.The groove number of motor and the different cooperation of number of poles can produce different cogging torques, and cogging torque is one of root of motor electromagnetic sound generation.
Just as what personnel knew in the industry, the tooth that cogging torque occurs during with rotor rotation is relevant with the locking phenomenon between magnetic pole, and the least common multiple of cogging torque and groove number and number of poles is inversely proportional to.The least common multiple of six grooves, four utmost points of more than mentioning is that the least common multiple of 12, the ten two groove ends of the earth is 24, when rotor revolves in the process that turns around; 12 locked points appear in the meeting of six grooves, four utmost points; 24 locked points appear in the meeting of the 12 groove ends of the earth, and locked point is many more, and cogging torque is just more little; Vice versa.The size of cogging torque directly can have influence on the size of electromagnetic sound; General cogging torque is big more, and the electromagnetic sound that is produced is just big more.
For addressing the above problem, the insider once proposed a kind of through changing the intrados of magnetic pole, and locking power is weakened; Can play the effect that reduces cogging torque; Be as shown in Figure 1, because the circular arc 130 of the circular arc of magnet steel 11 intrados 110 of magnetic pole and stator core 13 makes the air gap between magnet steel 11 and the stator core 13 inconsistent on circumference not on same concentric circles; And then increased the gas length between partial zones; In other words, equal to have increased average gas length, and then can cause the decline of motor properties.In addition, with the magnetic property that reduces magnet steel or increase gas length and also can reduce the motor gas-gap magnetic density, thereby cogging torque can be reduced, but motor performance and efficient can be reduced equally like this.
In addition, because the winding mode of dc brushless motor stator also can have influence on the performance and the efficient of its work, reasonably stator winding is carried out coiling and also be even more important; In the prior art, stator winding is different with the setting-in wire laying mode according to the shape of coil winding, can be divided into centralized and distributed two types; Wherein, With respect to distributed winding, above-mentioned centralized winding because of have the efficient height, caloric value is little and three phase winding symmetry are good etc., and advantage is comparatively common, sees also Fig. 2; Be shown as the centralized stator winding sketch map of a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors in the prior art; Stator winding comprises 12 coil parts, and 12 coils are divided into U, V, W three-phase, is wound into respectively on 12 teeth of stator.Be shown in the following figure, a pair of coil of U phase is wrapped in respectively on tooth 12a and the 12b, wherein; Coil on the tooth 12a is clockwise coiling, and the coil on the tooth 12b is counterclockwise coiling, and another of U phase is wrapped in respectively on tooth 12g and the 12h coil; Wherein, the coil on the tooth 12g is counterclockwise coiling, and the coil on the tooth 12b is clockwise coiling; Similarly, two pairs of coils of V phase are wrapped in tooth 12c, 12d and tooth 12i respectively, 12j is last, and two pairs of coils of W phase are wrapped in tooth 12e, 12f and tooth 12k respectively, 12l is last; And above-mentioned three-phase U, V, W adopt star winding mode, and promptly the tail end of the tail end of the tail end of U phase, V phase, W phase links together.But; Owing to be wound in the connected mode of same adjacent two coils of going up mutually in the above-mentioned coiling mode is the suitable series system (electrotechnical terminology is " tail joint ") that connects of tail end adaper end; Its electric current that under specified voltage, produces is relatively low, especially is applied in environment under low pressure following time can reduce motor performance and efficient; And, in actual coiling process, because its situation, and then spooling equipment there is higher requirement in clockwise and counterclockwise both direction coiling, be unfavorable for enhancing productivity and reducing production costs.
Thereby, how a kind of method for winding that is directed against 12 grooves, ten utmost point three-phase direct-current brushless motor stators is provided, to overcome many disadvantages of the prior art, real those skilled in the art's problem demanding prompt solution that become.
Summary of the invention
The shortcoming of prior art in view of the above; The object of the present invention is to provide the method for winding of a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors and stator thereof, be used to solve dc brushless motor of the prior art because of having increased the problem that average gas length causes the decline of motor properties.
The object of the present invention is to provide the method for winding of a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors and stator thereof, the stator winding that is used to solve dc brushless motor of the prior art is because of reaching the problem that reduces motor performance and efficient in the coiling mode along counterclockwise both direction along connecing the series connection coiling.
For realizing above-mentioned purpose and other relevant purposes, the present invention provides a kind of method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motor stators, and following steps comprise at least:
1) provide one have 12 teeth groove stator and have the rotor of ten magnetic poles, and the concyclic heart of cambered surface of the inner surface of this magnetic pole respectively in the terminal cambered surface of this teeth groove and the said rotor respectively in the said stator; And be provided for being wrapped in the winding on each teeth groove of said stator, comprise first phase that has two sections coilings respectively, second phase, and third phase coil;
2) teeth groove is that initial clockwise direction defines first successively until the 12 teeth groove in said stator; And respectively between the 12 and first teeth groove, between the 8th and the 9th teeth groove, and the 4th and the 5th teeth groove between root position define first, second, and the 3rd coiling initial point, respectively between the 6th and the 7th teeth groove, between the second and the 3rd teeth groove, reach root position between the tenth and the 11 teeth groove and define first, second, reach the 3rd terminal point that winds the line;
3) initial from a coiling initial point; Toward the clockwise direction with a corresponding teeth groove of this coiling initial point on twine one section coiling in the coiling mutually; Twine enclose more and twine enclose more on the teeth groove that causes back five afterwards again, and stop at the coiling terminal point corresponding with this initial point that winds the line; Then, initial according to this coiling terminal point again, on the teeth groove of the back six, twine another section coiling in this coil toward the clockwise direction, twine twine many circles again on the teeth groove that causes back 11 after many circles after, stop in this coiling initial point; Twine other two phase coils according to aforesaid way at last.
In the step 3) of method for winding of the present invention; The coiling of said first phase coil is initial from the said first coiling initial point; On said first teeth groove, twine one section coiling in said first phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the 6th teeth groove again and stop in the said first coiling terminal point; Then, initial from the said first coiling terminal point, on said the 7th teeth groove, twine another section coiling in said first phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the 12 teeth groove again and stop in the said first coiling initial point.
In the step 3) of method for winding of the present invention; The coiling of said second phase coil is initial from the said second coiling initial point; On said the 9th teeth groove, twine one section coiling in said second phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on second teeth groove again and stop in the said second coiling terminal point; Then, initial from the said second coiling terminal point, on said the 3rd teeth groove, twine another section coiling in said second phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the octadentate groove again and stop in the said second coiling initial point.
In the step 3) of method for winding of the present invention; The coiling of said third phase coil is initial from said the 3rd coiling initial point; On said the 5th teeth groove, twine one section coiling in the said third phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the tenth teeth groove again and stop in said the 3rd coiling terminal point; Then, initial from said the 3rd coiling terminal point, on said the 11 teeth groove, twine another section coiling in the said third phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the 4th teeth groove again and stop in said the 3rd coiling initial point.
Coiling mode in the step 3) of method for winding of the present invention is delta windings mode or star winding mode.
The present invention also provides a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors, comprises at least:
Rotor has ten magnetic poles, and respectively the inner surface of this magnetic pole is the cambered surface of the concyclic heart;
Stator; Be located in the said rotor; Have 12 teeth groove; The concyclic heart of terminal cambered surface of this teeth groove respectively, described 12 teeth groove comprise first successively until the 12 teeth groove, between the 12 and first teeth groove, between the 8th and the 9th teeth groove, and the 4th and the 5th teeth groove between root position be respectively equipped with first, second, and the 3rd initial point that winds the line; Between the 6th and the 7th teeth groove, between the second and the 3rd teeth groove, and the tenth and the 11 teeth groove between root position be respectively equipped with first, second, and the 3rd terminal point that winds the line, the respectively concyclic heart of cambered surface of the inner surface of this magnetic pole respectively in the terminal cambered surface of this teeth groove and the said rotor;
Winding is wrapped on each teeth groove of said stator, comprises first phase that has two sections coilings respectively, second phase, and third phase coil; One section coiling in each phase coil originates in a coiling initial point, on a teeth groove corresponding with this coiling initial point, twines many circles in clockwise direction, and on the teeth groove of back five, twines many circles, terminates in the coiling terminal point corresponding with this coiling initial point; Another section coiling in this coil originates in this coiling terminal point, on the teeth groove of back six, twines many circles in clockwise direction, and on the teeth groove of back 11, twines many circles, ends at this coiling initial point.
In 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention; One section coiling in said first phase coil originates in the said first coiling initial point; On said first teeth groove, twine many circles in clockwise direction, and on the 6th teeth groove, twine many circles again, end at the said first coiling terminal point; Another section coiling in said first phase coil originates in the said first coiling terminal point, in clockwise direction many circles on said the 7th teeth groove, and on the 12 teeth groove, twines many circles, ends at the said first coiling initial point.
In 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention; One section coiling in said second phase coil originates in the said second coiling initial point; On said the 9th teeth groove, twine many circles in clockwise direction, and on second teeth groove, twine many circles, end at the said second coiling terminal point; Another section coiling in said second phase coil originates in the said second coiling terminal point, on said the 3rd teeth groove, twines many circles in clockwise direction, and on the octadentate groove, twines many circles, ends at the said second coiling initial point.
In 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention; One section coiling in the said third phase coil originates in said the 3rd coiling initial point; On said the 5th teeth groove, twine many circles in clockwise direction, and on the tenth teeth groove, twine many circles, end at said the 3rd coiling terminal point; Another section coiling in the said third phase coil originates in said the 3rd coiling terminal point, twines on said the 11 teeth groove in clockwise direction, and on the 4th teeth groove, twines many circles again, ends at said the 3rd coiling initial point.
In 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention, the coiling mode of said winding is delta windings or star winding.
As stated, the method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention and stator thereof has following beneficial effect:
12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention are taked the groove number of 12 grooves, ten utmost points and cooperating of number of poles; The least common multiple of its groove number and number of poles is 60; That is to say when rotor and revolve and turn around, 60 locked points can occur, increase because locked point quantity has significantly than 24 locked points of 12 locked points of six grooves, four utmost points and the 12 groove ends of the earth; Its cogging torque also just reduces significantly, thereby has reduced the electromagnetic sound by the cogging torque generation effectively.
The circular arc of the magnet steel intrados of the magnetic pole in 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention kept with stator core be concentric circles; And then the air gap between magnet steel and the stator is remained unchanged on circumference; Can bring into play the magnetic property of magnet steel to greatest extent, motor properties and efficient can both remain on the higher level.
The prior art of 12 grooves, ten utmost point three-phase direct-current brushless motors of the present invention and Fig. 2 relatively is two groups of parallelly connected windings, has the little advantage of winding resistance, is applicable to the occasion of low voltage power supply, particularly the use when automobile 12V supplies power.
According to method for winding of the present invention, can in actual coiling process, avoid the phenomenon of coiling in the other direction, can reduce requirement to spooling equipment, it is easy that spooling equipment is made.
Description of drawings
Fig. 1 is shown as magnetic pole magnet steel and stator core construction sketch map in the prior art.
Fig. 2 is shown as the centralized stator winding sketch map of a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors in the prior art.
Fig. 3 is shown as rotor and the stator structure sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors.
Fig. 4 is shown as each teeth groove distribution schematic diagram of stator in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors.
Fig. 5 is shown as stator one phase winding mode sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors.
Fig. 6 is shown as stator star coiling sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors.
Fig. 7 is shown as the coiling sketch map of stator delta windings in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors.
Embodiment
Below through specific instantiation execution mode of the present invention is described, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.The present invention can also implement or use through other different embodiment, and each item details in this specification also can be based on different viewpoints and application, carries out various modifications or change under the spirit of the present invention not deviating from.
See also Fig. 3 to Fig. 7.Need to prove; The diagram that is provided in the present embodiment is only explained basic conception of the present invention in a schematic way; Satisfy only show in graphic with the present invention in relevant assembly but not component count, shape and plotted when implementing according to reality; Kenel, quantity and the ratio of each assembly can be a kind of random change during its actual enforcement, and its assembly layout kenel also maybe be more complicated.
The present invention provides a kind of method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motor stators, and following steps comprise at least:
See also Fig. 3; Be shown as rotor and stator structure sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors; As shown in the figure, step 1), provide one have 12 teeth groove 221 stator 22 and have the rotor 21 of ten magnetic poles 211; And cambered surface 2111 concyclic heart O of the inner surface of this magnetic pole 211 respectively in the terminal cambered surface 2211 of this teeth groove 221 and the said rotor 21 respectively in the said stator 22; And then the air gap between magnetic pole 211 and the teeth groove 221 is remained unchanged on circumference, and can bring into play the magnetic property of magnetic pole 211 to greatest extent, motor properties and efficient can both remain on the higher level.Be provided for again being wrapped in the winding on said stator 22 each teeth groove 221, comprise first phase coil that has two sections coilings respectively, second phase coil, and third phase coil; In present embodiment, the magnetic pole 211 of said rotor is a magnet steel, said first phase coil, second phase coil, and the third phase coil be respectively U phase coil, V phase coil and W phase coil.
See also Fig. 4; Be shown as each teeth groove distribution schematic diagram of stator in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors; As shown in the figure; Step 2); A teeth groove is that initial clockwise direction defines first successively and (is denoted as A, B, b, c, C, A ' and a ', b ', B ', C ', c ', a) respectively in the drawings until the 12 teeth groove in said stator 22; And respectively between the 12 teeth groove a and the first teeth groove A, between octadentate groove b ' and the 9th teeth groove B ', and the 4th teeth groove c and root position between the 5th teeth groove C define first, second, and the 3rd coiling initial point (S1, S2, S3 shown in the diagram orbicular spot), respectively between the 6th teeth groove A ' and the 7th teeth groove a ', between the second teeth groove B and the 3rd teeth groove b, and the tenth teeth groove C ' and the 11 teeth groove c ' between root position define first, second, reach the 3rd terminal point (illustrating E1, E2, the E3 shown in the orbicular spot) that winds the line.
See also Fig. 5, be shown as stator one phase winding mode sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors, need to prove; Winding mode for clear demonstration stator; Be that example describes only among Fig. 5 with the phase winding in the three-phase coil, as shown in the figure, step 3); Initial from a coiling initial point S; Toward the clockwise direction with a corresponding teeth groove 221 of this coiling initial point S on twine one section coiling L1 in the coiling (for example for U phase) mutually, twine on the teeth groove that causes back five after many circles and twine many circles again, and with the corresponding coiling terminal point E termination of this coiling initial point S; Then, initial according to this coiling terminal point E again, on the teeth groove of back six, twine another section coiling L2 in this coil toward the clockwise direction, twine twine many circles again on the teeth groove that causes back 11 after many circles after, S stops in this coiling initial point.Twine other two phase coils (being V phase coil and W phase coil) according to aforesaid way at last.
In order further to highlight principle of the present invention and effect, see also Fig. 6, be shown as stator star coiling sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors; As shown in the figure, wherein, solid line is the U phase; Represent said first phase coil, chain-dotted line is the V phase, represents said second phase coil; Dotted line is the W phase, represents said third phase coil.Square frame is represented each teeth groove of stator among the figure, the inlet wire direction of the arrow below the square frame during for coiling, each teeth groove by the capital and small letter of letter around on the contrary.
Particularly; The coiling of the said first phase coil U is initial from the said first coiling initial point S1; On the said first teeth groove A, twine one section coiling U1 among the said first phase coil U toward the clockwise direction, twine to cause after many circles and twine many circles on the 6th teeth groove A ' again and stop in the said first coiling terminal point E1; Then; Initial from the said first coiling terminal point E1; Go up to twine another section coiling U2 among the said first phase coil U at said the 7th teeth groove a ' toward the clockwise direction, twine to cause after many circles and twine many circles on the 12 teeth groove a again and stop in the said first coiling initial point S1.
The coiling of the said second phase coil V is initial from the said second coiling initial point S2; Go up to twine one section coiling V1 among the said second phase coil V at said the 9th teeth groove B ' toward the clockwise direction, twine to cause after many circles and twine many circles on the second teeth groove B again and stop in the said second coiling terminal point E2; Then; Initial from the said second coiling terminal point E2; On said the 3rd teeth groove b, twine another section coiling V2 among the said second phase coil V toward the clockwise direction, twine to cause after many circles and twine many circles on the octadentate groove b ' again and stop in the said second coiling initial point S2.
The coiling of said third phase coil W is initial from said the 3rd coiling initial point S3; On said the 5th teeth groove C, twine one section coiling W1 among the said third phase coil W toward the clockwise direction, twine to cause after many circles and twine many circles on the tenth teeth groove C ' again and stop in said the 3rd coiling terminal point E3; Then; Initial from said the 3rd coiling terminal point E3; Go up to twine another section coiling W2 among the said third phase coil W at said the 11 teeth groove c ' toward the clockwise direction, twine to cause after many circles and twine many circles on the 4th teeth groove c again and stop in said the 3rd coiling initial point S3.
In the coiling process of reality; The mid point of also can be earlier casting aside from band begin around; Wherein four windings of a phase are all after finishing; Go up four windings that begin again around this phase mutually carrying out the transition to other one by the mid point connecting line, carrying out the transition to last phase by the mid point connecting line, around four windings of intact residue around intact back.Like this can be from the beginning around to tail, and need not be in the other direction around, and then avoid the phenomenon of coiling in the other direction, can reduce requirement to spooling equipment, it is easy that spooling equipment is made.
In another embodiment, can also adopt the winding mode of delta windings, see also Fig. 7; Be shown as the coiling sketch map of stator delta windings in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors, as shown in the figure, wherein; Solid line is the U phase, and chain-dotted line is the V phase, and dotted line is the W phase.Square frame is represented each teeth groove of stator among the figure, each teeth groove by the capital and small letter of letter around on the contrary.In the winding process of reality, earlier with uppercase winding all after intact, again around the winding of lowercase; So just can be from the beginning around to tail, and need not be in the other direction around, and then avoid the phenomenon of coiling in the other direction; Can reduce the requirement to spooling equipment, it is easy that spooling equipment is made.
The present invention also provides a kind of 12 grooves, ten utmost point three-phase direct-current brushless motors, comprises at least: rotor 21, stator 22, and winding.
Said rotor has ten magnetic poles 211, and respectively the inner surface of this magnetic pole 211 is the cambered surface of the concyclic heart; In present embodiment, the magnetic pole of said rotor is a magnet steel.
Said stator axis is located in the said rotor; Have 12 teeth groove; The concyclic heart of terminal cambered surface of this teeth groove respectively; Described 12 teeth groove comprise that successively first (is denoted as A, B, b, c, C, A ' and a ', b ', B ', C ', c ', a) respectively in the drawings until the 12 teeth groove; And respectively between the 12 teeth groove a and the first teeth groove A, between octadentate groove b ' and the 9th teeth groove B ', and the 4th teeth groove c and root position between the 5th teeth groove C define first, second, and the 3rd coiling initial point (S1, S2, S3 shown in the diagram orbicular spot), respectively between the 6th teeth groove A ' and the 7th teeth groove a ', between the second teeth groove B and the 3rd teeth groove b, and the tenth teeth groove C ' and the 11 teeth groove c ' between root position define first, second, reach the 3rd terminal point (illustrating E1, E2, the E3 shown in the orbicular spot) that winds the line.
The cambered surface 2111 concyclic hearts of the inner surface of this magnetic pole respectively in the terminal cambered surface of this teeth groove and the said rotor respectively; And then the air gap between magnetic pole 211 and the stator 22 is remained unchanged on circumference; Can bring into play the magnetic property of magnetic pole to greatest extent, motor properties and efficient can both remain on the higher level.
Said winding is wrapped on said stator 22 each teeth groove 221, comprises first phase that has two sections coilings respectively, second phase, and third phase coil; In present embodiment, said first phase coil, second phase coil, and the third phase coil be respectively U phase coil, V phase coil and W phase coil.
One section coiling in each phase coil is initial from a coiling initial point, on a teeth groove corresponding with this coiling initial point, twines toward the clockwise direction on the teeth groove that causes back five after enclosing more and twines enclose more again, and stop at the coiling terminal point corresponding with this initial point that winds the line; One section coiling in this coil is initial according to this coiling terminal point, on the teeth groove of the back six, twine toward the clockwise direction twine many circles again on the teeth groove that causes back 11 after many circles after, in this coiling initial point termination.
Be as shown in Figure 5; One section coiling in each phase coil is initial from a coiling initial point S; Toward the clockwise direction with a corresponding teeth groove 221 of this coiling initial point S on twine one section coiling L1 in the coiling (for example for U phase) mutually; Twine enclose more and twine enclose more on the teeth groove that causes back five afterwards again, and stop at the coiling terminal point E corresponding with this initial point S that winds the line; Then, initial according to this coiling terminal point E again, on the teeth groove of back six, twine another section coiling L2 in this coil toward the clockwise direction, twine twine many circles again on the teeth groove that causes back 11 after many circles after, S stops in this coiling initial point.
See also Fig. 6, be shown as stator star coiling sketch map in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors, as shown in the figure, wherein; Solid line is the U phase, represents said first phase coil, and chain-dotted line is the V phase; Represent said second phase coil, dotted line is the W phase, represents said third phase coil.Square frame is represented each teeth groove of stator among the figure, the inlet wire direction of the arrow below the square frame during for coiling, each teeth groove by the capital and small letter of letter around on the contrary.
Particularly; The coiling of the said first phase coil U is initial from the said first coiling initial point S1; On the said first teeth groove A, twine one section coiling U1 among the said first phase coil U toward the clockwise direction, twine to cause after many circles and twine many circles on the 6th teeth groove A ' again and stop in the said first coiling terminal point E1; Then; Initial from the said first coiling terminal point E1; Go up to twine another section coiling U2 among the said first phase coil U at said the 7th teeth groove a ' toward the clockwise direction, twine to cause after many circles and twine many circles on the 12 teeth groove a again and stop in the said first coiling initial point S1.
The coiling of the said second phase coil V is initial from the said second coiling initial point S2; Go up to twine one section coiling V1 among the said second phase coil V at said the 9th teeth groove B ' toward the clockwise direction, twine to cause after many circles and twine many circles on the second teeth groove B again and stop in the said second coiling terminal point E2; Then; Initial from the said second coiling terminal point E2; On said the 3rd teeth groove b, twine another section coiling V2 among the said second phase coil V toward the clockwise direction, twine to cause after many circles and twine many circles on the octadentate groove b ' again and stop in the said second coiling initial point S2.
The coiling of said third phase coil W is initial from said the 3rd coiling initial point S3; On said the 5th teeth groove C, twine one section coiling W1 among the said third phase coil W toward the clockwise direction, twine to cause after many circles and twine many circles on the tenth teeth groove C ' again and stop in said the 3rd coiling terminal point E3; Then; Initial from said the 3rd coiling terminal point E3; Go up to twine another section coiling W2 among the said third phase coil W at said the 11 teeth groove c ' toward the clockwise direction, twine to cause after many circles and twine many circles on the 4th teeth groove c again and stop in said the 3rd coiling initial point S3.
In the coiling process of reality; The mid point of casting aside earlier from band begin around, will be wherein one mutually four windings go up four windings that begin again around this phase mutually carrying out the transition to other one by the mid point connecting line all after intact; Carrying out the transition to last phase around intact back by the mid point connecting line, around four windings of intact residue.Like this can be from the beginning around to tail, and need not be in the other direction around, and then avoid the phenomenon of coiling in the other direction, can reduce requirement to spooling equipment, it is easy that spooling equipment is made.
In another embodiment, can also adopt the winding mode of delta windings, see also Fig. 7; Be shown as the coiling sketch map of stator delta windings in the present invention's 12 grooves ten utmost point three-phase direct-current brushless motors, as shown in the figure, wherein; Solid line is the U phase, and chain-dotted line is the V phase, and dotted line is the W phase.Square frame is represented each teeth groove of stator among the figure, each teeth groove by the capital and small letter of letter around on the contrary.In the winding process of reality, earlier with uppercase winding all after intact, again around the winding of lowercase; So just can be from the beginning around to tail, and need not be in the other direction around, and then avoid the phenomenon of coiling in the other direction; Can reduce the requirement to spooling equipment, it is easy that spooling equipment is made.
In sum, the present invention is directed to the winding mode of the outer rotor brushless motor stator of 12 grooves, ten utmost points, three phase windings.Winding configuration is centralized winding; Advantage such as more distributed winding, centralized winding have the efficient height, caloric value is little, coiling is simple and three phase winding symmetry are good.So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any be familiar with this technological personage all can be under spirit of the present invention and category, the foregoing description is modified or is changed.Therefore, have common knowledge the knowledgeable in the affiliated such as technical field, must contain by claim of the present invention not breaking away from all equivalence modifications of being accomplished under disclosed spirit and the technological thought or changing.
Claims (10)
1. the method for winding of groove ten utmost point three-phase direct-current brushless motor stators is characterized in that, said method for winding at least below
Step comprises:
1) provide one have 12 teeth groove stator and have the rotor of ten magnetic poles, and the concyclic heart of cambered surface of the inner surface of this magnetic pole respectively in the terminal cambered surface of this teeth groove and the said rotor respectively in the said stator; And be provided for being wrapped in the winding on each teeth groove of said stator, comprise first phase that has two sections coilings respectively, second phase, and third phase coil;
2) teeth groove is that initial clockwise direction defines first successively until the 12 teeth groove in said stator; And respectively between the 12 and first teeth groove, between the 8th and the 9th teeth groove, and the 4th and the 5th teeth groove between root position define first, second, and the 3rd coiling initial point, respectively between the 6th and the 7th teeth groove, between the second and the 3rd teeth groove, reach root position between the tenth and the 11 teeth groove and define first, second, reach the 3rd terminal point that winds the line;
3) initial from a coiling initial point; Toward the clockwise direction with a corresponding teeth groove of this coiling initial point on twine one section coiling in the coiling mutually; Twine enclose more and twine enclose more on the teeth groove that causes back five afterwards again, and stop at the coiling terminal point corresponding with this initial point that winds the line; Then, initial according to this coiling terminal point again, on the teeth groove of the back six, twine another section coiling in this coil toward the clockwise direction, twine twine many circles again on the teeth groove that causes back 11 after many circles after, stop in this coiling initial point; Twine other two phase coils according to aforesaid way at last.
2. the method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motor stators according to claim 1; It is characterized in that: in said step 3); The coiling of said first phase coil is initial from the said first coiling initial point; On said first teeth groove, twine one section coiling in said first phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the 6th teeth groove again and stop in the said first coiling terminal point; Then, initial from the said first coiling terminal point, on said the 7th teeth groove, twine another section coiling in said first phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the 12 teeth groove again and stop in the said first coiling initial point.
3. the method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motor stators according to claim 1; It is characterized in that: in said step 3); The coiling of said second phase coil is initial from the said second coiling initial point; On said the 9th teeth groove, twine one section coiling in said second phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on second teeth groove again and stop in the said second coiling terminal point; Then, initial from the said second coiling terminal point, on said the 3rd teeth groove, twine another section coiling in said second phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the octadentate groove again and stop in the said second coiling initial point.
4. the method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motor stators according to claim 1; It is characterized in that: in said step 3); The coiling of said third phase coil is initial from said the 3rd coiling initial point; On said the 5th teeth groove, twine one section coiling in the said third phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the tenth teeth groove again and stop in said the 3rd coiling terminal point; Then, initial from said the 3rd coiling terminal point, on said the 11 teeth groove, twine another section coiling in the said third phase coil toward the clockwise direction, twine to cause after many circles and twine many circles on the 4th teeth groove again and stop in said the 3rd coiling initial point.
5. the method for winding of 12 grooves, ten utmost point three-phase direct-current brushless motor stators according to claim 1 is characterized in that: the coiling mode in said step 3) is delta windings mode or star winding mode.
6. groove ten utmost point three-phase direct-current brushless motors is characterized in that, comprise at least:
Rotor has ten magnetic poles, and respectively the inner surface of this magnetic pole is the cambered surface of the concyclic heart;
Stator; Be located in the said rotor; Have 12 teeth groove; The concyclic heart of terminal cambered surface of this teeth groove respectively, described 12 teeth groove comprise first successively until the 12 teeth groove, between the 12 and first teeth groove, between the 8th and the 9th teeth groove, and the 4th and the 5th teeth groove between root position be respectively equipped with first, second, and the 3rd initial point that winds the line; Between the 6th and the 7th teeth groove, between the second and the 3rd teeth groove, and the tenth and the 11 teeth groove between root position be respectively equipped with first, second, and the 3rd terminal point that winds the line, the respectively concyclic heart of cambered surface of the inner surface of this magnetic pole respectively in the terminal cambered surface of this teeth groove and the said rotor;
Winding is wrapped on each teeth groove of said stator, comprises first phase that has two sections coilings respectively, second phase, and third phase coil; One section coiling in each phase coil originates in a coiling initial point, on a teeth groove corresponding with this coiling initial point, twines many circles in clockwise direction, and on the teeth groove of back five, twines many circles, terminates in the coiling terminal point corresponding with this coiling initial point; Another section coiling in this coil originates in this coiling terminal point, on the teeth groove of back six, twines many circles in clockwise direction, and on the teeth groove of back 11, twines many circles, ends at this coiling initial point.
7. 12 grooves, ten utmost point three-phase direct-current brushless motors according to claim 6; It is characterized in that: one section coiling in said first phase coil originates in the said first coiling initial point; On said first teeth groove, twine many circles in clockwise direction; And on the 6th teeth groove, twine many circles again, end at the said first coiling terminal point; Another section coiling in said first phase coil originates in the said first coiling terminal point, in clockwise direction many circles on said the 7th teeth groove, and on the 12 teeth groove, twines many circles, ends at the said first coiling initial point.
8. 12 grooves, ten utmost point three-phase direct-current brushless motors according to claim 6; It is characterized in that: one section coiling in said second phase coil originates in the said second coiling initial point; On said the 9th teeth groove, twine many circles in clockwise direction; And on second teeth groove, twine many circles, end at the said second coiling terminal point; Another section coiling in said second phase coil originates in the said second coiling terminal point, on said the 3rd teeth groove, twines many circles in clockwise direction, and on the octadentate groove, twines many circles, ends at the said second coiling initial point.
9. 12 grooves, ten utmost point three-phase direct-current brushless motors according to claim 6; It is characterized in that: one section coiling in the said third phase coil originates in said the 3rd coiling initial point; On said the 5th teeth groove, twine many circles in clockwise direction; And on the tenth teeth groove, twine many circles, end at said the 3rd coiling terminal point; Another section coiling in the said third phase coil originates in said the 3rd coiling terminal point, twines on said the 11 teeth groove in clockwise direction, and on the 4th teeth groove, twines many circles again, ends at said the 3rd coiling initial point.
10. 12 grooves, ten utmost point three-phase direct-current brushless motors according to claim 6, it is characterized in that: the coiling mode of said winding is delta windings or star winding.
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| CN2012102399267A CN102780337A (en) | 2012-07-11 | 2012-07-11 | Twelve-groove ten-pole three-phase direct current brushless motor and stator winding method thereof |
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| CN2012102399267A CN102780337A (en) | 2012-07-11 | 2012-07-11 | Twelve-groove ten-pole three-phase direct current brushless motor and stator winding method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578653A (en) * | 2013-10-28 | 2015-04-29 | 大工科技（上海）有限公司 | Permanent magnet synchronous motor |
| CN105048754A (en) * | 2014-04-28 | 2015-11-11 | 马渊马达株式会社 | Brushless motor |
-
2012
- 2012-07-11 CN CN2012102399267A patent/CN102780337A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578653A (en) * | 2013-10-28 | 2015-04-29 | 大工科技（上海）有限公司 | Permanent magnet synchronous motor |
| CN105048754A (en) * | 2014-04-28 | 2015-11-11 | 马渊马达株式会社 | Brushless motor |
| CN105048754B (en) * | 2014-04-28 | 2019-07-05 | 马渊马达株式会社 | Brushless motor |
| US10418873B2 (en) | 2014-04-28 | 2019-09-17 | Mabuchi Motor Co., Ltd. | Brushless motor with stator having twelve teeth with corresponding coils having axially arranged connecting wires |
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Application publication date: 20121114 |