CN102148554A - Inner rotor type motor and claw pole component thereof - Google Patents
Inner rotor type motor and claw pole component thereof Download PDFInfo
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- CN102148554A CN102148554A CN2010101074216A CN201010107421A CN102148554A CN 102148554 A CN102148554 A CN 102148554A CN 2010101074216 A CN2010101074216 A CN 2010101074216A CN 201010107421 A CN201010107421 A CN 201010107421A CN 102148554 A CN102148554 A CN 102148554A
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Abstract
The invention discloses an inner rotor type motor and a claw pole component thereof. The inner rotor type motor comprises a shell, a rotating shaft, the claw pole component and a coil unit, wherein the rotating shaft is connected with the shell in a rotating way, and is connected with a permanent magnet with a magnetic induction face; the claw pole component comprises a first ring body and a second ring body which can be connected with each other; the inner sides of the first and second ring bodies are provided with a plurality of pole pieces respectively; each pole piece is provided with a first side edge and a second side edge which are opposite to each other respectively; a magnetic pole face is formed between the first and second side edges, and faces the magnetic induction face of the permanent magnet; an air gap is formed between the magnetic pole face and the magnetic induction face; each pole piece is provided with a first expanded part adjacent to the first side edge and a reduced part adjacent to the second side edge respectively; or the magnetic pole face is divided into a first magnetic pole face and a second magnetic pole face which have different areas. Therefore, the functions of easily starting the inner rotor type motor and preventing starting dead points are realized.
Description
Technical field
The present invention is about a kind of motor, and especially a kind of have inner rotor type motor and a pawl utmost point spare thereof that is easy to start and can prevent to start the dead point function.
Background technology
Please refer to shown in Figure 1ly, be the three-dimensional exploded view of existing " outer rotor-type motor ", existing outer rotor-type motor 8 roughly comprises a pedestal 81, a stator 82 and a rotor 83.This pedestal 81 is provided with a central siphon 811; This stator 82 comprises several pawl pole pieces 821 and a coil groups 822, and these several pawl pole pieces 821 are stacked as one mutually, and this coil groups 822 is wound in the respectively predetermined position of this pawl pole piece 821; This rotor 83 rotatably is incorporated into the central siphon 811 of this pedestal 81.Whereby, this stator 82 is in order to drive this rotor 83 rotary works.
Again, as TaiWan, China announce M342688 number " motor stator " novel patent case, disclose No. 200603514 " motor configuration " patent of invention case, I276281 number " motor stator structure " patent of invention case of bulletin, bulletin I244817 number " DC motor " etc., disclose " outer rotor-type motor " that various different structures are arranged respectively; In brief, the stator that above-mentioned various " outer rotor-type motors " roughly utilize special construction to be forming uneven magnetic force, and then reaches the effect that starts off normal, makes respectively should " outer rotor-type motor " all have the function that is easy to start and can prevent to start the dead point.
Generally speaking, at present various existing motor configuration on the market except that above-mentioned " outer rotor-type motor " that discloses, other a kind of in addition " inner rotor type motor "; When analyzing two kinds of dissimilar motor configuration characteristics, " outer rotor-type motor " still has problems such as the relatively poor and rotating speed of rotational stabilization is lower compared to " inner rotor type motor ", because electronic product is generally towards direction research and development designs such as high speed, function integration and microminiaturized trend now, therefore, " outer rotor-type motor " also can't satisfy the radiating requirements of portions of electronics product fully, causes the application of " inner rotor type motor " increasingly extensive.
For example, disclose " fan and inner rotor motor thereof " patent of invention case No. 200744290, disclose a kind of inner rotor type motor as TaiWan, China.Please refer to shown in Figure 2ly, this existing inner rotor type motor 9 roughly comprises a housing 91, a stator structure 92, a rotor structure 93, a drive unit 94 and an impeller 95.This housing 91 is made up of one first housing 911 and one second housing 912, and this first housing 911 and one second housing, 912 inside respectively are provided with a bearing 913; This stator structure 92 has a magnetic conductive component 921; This rotor structure 93 has a rotating shaft 931 and a magnetic element 932, and this rotating shaft 931 wears inner and articulate this two bearing 913 to this housing 91, can wear for this magnetic element 932 in addition and be incorporated into this rotating shaft 931 and to should magnetic conductive component 921; This drive unit 94 electrically connects this magnetic conductive component 921; This impeller 95 links this rotating shaft 931 and is positioned at this housing 91 outsides.Whereby, the sense of current of this this magnetic conductive component 921 of drive unit 94 may command is so that drive this rotor structure 93 and impeller 95 rotary works.
Yet the magnetic conductive component 921 of above-mentioned existing inner rotor type motor 9 only can drive this rotor structure 93 rotations, does not provide to be easy to start and can to prevent to start dead point etc.; Therefore, though inner rotor type motor generally has the preferable and rotating speed of rotational stabilization than advantages such as height compared to outer rotor-type motor,, because existing inner rotor type motor 9 is when reality is used, and can't effectively improve badly and can't effectively prevent to start problems such as dead point as start-up control, still have the necessity that is improved.
Summary of the invention
The object of the invention is that to have a start-up control at above-mentioned " inner rotor type motor " bad and can't prevent to start problems such as dead point and improve, so that a kind of inner rotor type motor and pawl utmost point spare thereof that is easy to start and can prevent to start the function at dead point that have to be provided.
For reaching aforementioned goal of the invention, the technology contents that the present invention used is as follows:
A kind of inner rotor type motor comprises a shell, a rotating shaft, a pawl utmost point spare and a coil groups.This rotating shaft can be rotatably in conjunction with this shell, and this rotating shaft is in conjunction with the permanent magnet with sense magnetic surface, and this permanent magnet is positioned at the inside of this shell; This pawl utmost point spare is incorporated into this enclosure, this pawl utmost point spare comprises one first ring body and one second ring body that can mutually combine, this first ring body and second ring body all have an inner ring surface, this inner ring surface is provided with several extensions, respectively this extension connects a pole piece respectively, the two opposite sides edge that extends axially direction of this pole piece is respectively one first lateral margin and one second lateral margin, one side of this pole piece is the spiral face towards this inner ring surface, opposite side is a magnetic pole strength, form a winding space between the spiral face of this pole piece and this inner ring surface, the magnetic pole strength of this pole piece is towards the sense magnetic surface of this permanent magnet, form an air gap between this magnetic pole strength and this sense magnetic surface, and this pole piece forms a wide diameter portion of contiguous this first lateral margin and a reducing diameter part of contiguous this second lateral margin respectively, to form this air gap of unequal-interval; This coil groups is arranged at the winding space of this pawl utmost point spare, and this coil groups is wound in the spiral face of this pawl utmost point spare.
A kind of inner rotor type motor comprises a shell, a rotating shaft, a pawl utmost point spare and a coil groups.This rotating shaft can be rotatably in conjunction with this shell, and this rotating shaft is in conjunction with the permanent magnet with sense magnetic surface, and this permanent magnet is positioned at the inside of this shell; This pawl utmost point spare is incorporated into this enclosure, this pawl utmost point spare comprises one first ring body and one second ring body that can mutually combine, this first ring body and second ring body all have an inner ring surface, this inner ring surface is provided with several extensions, respectively this extension connects a pole piece respectively, the two opposite sides edge that extends axially direction of this pole piece is respectively one first lateral margin and one second lateral margin, one side of this pole piece is the spiral face towards this inner ring surface, opposite side is a magnetic pole strength, form a winding space between the spiral face of this pole piece and this inner ring surface, the magnetic pole strength of this pole piece is towards the sense magnetic surface of this permanent magnet, form an air gap between this magnetic pole strength and this sense magnetic surface, and an end of this first ring body is provided with one first joint portion, one end of this second ring body is provided with one second joint portion, first joint portion of this first ring body and second joint portion of this second ring body mutually combine, first ring body of this pawl utmost point spare and second ring body define respectively and extend axially in a datum line of this magnetic pole strength respectively, the interconnective side in the pole piece of this first ring body and this extension has an ora terminalis, the interconnective side in the pole piece of this second ring body and this extension has an ora terminalis, the pole piece of this datum line by this first ring body and the center of the ora terminalis of the pole piece of this second ring body, this datum line respectively this magnetic pole strength is all divided into one first magnetic pole strength and one second magnetic pole strength, this first magnetic pole strength is between this first lateral margin and this datum line, this second magnetic pole strength is between this second lateral margin and this datum line, and the area of this first magnetic pole strength is different with the area of this second magnetic pole strength; This coil groups is arranged at the winding space of this pawl utmost point spare, and this coil groups is wound in the spiral face of this pawl utmost point spare.
Description of drawings
Fig. 1: the three-dimensional exploded view of existing outer rotor-type motor.
Fig. 2: the assembled sectional view of existing inner rotor type motor.
Fig. 3: the three-dimensional exploded view of the inner rotor type motor of first embodiment of the invention.
Fig. 4: the assembled sectional view of the inner rotor type motor of first embodiment of the invention.
Fig. 5: the local assembled sectional view of the inner rotor type motor of first embodiment of the invention.
Fig. 6: the local assembled sectional view of another execution mode of pawl pole piece of the inner rotor type motor of first embodiment of the invention.
Fig. 7: the local assembled sectional view of the another execution mode of pawl pole piece of the inner rotor type motor of first embodiment of the invention.
Fig. 8: the three-dimensional exploded view of the inner rotor type motor of second embodiment of the invention.
Fig. 9: the assembled sectional view of the inner rotor type motor of second embodiment of the invention.
Figure 10: the stereo appearance figure of the pawl pole piece of the inner rotor type motor of second embodiment of the invention.
Figure 11: the stereo appearance figure of the pawl pole piece of the inner rotor type motor of third embodiment of the invention.
Figure 12: inner rotor type motor of the present invention constitutes the user mode reference diagram of radiator fan in conjunction with flabellum.
Figure 13: inner rotor type motor of the present invention constitutes the user mode reference diagram of radiator fan in conjunction with impeller.
Figure 14: the assembled sectional view when the pawl utmost point spare of inner rotor type motor of the present invention comprises the collar in addition.
1 shell, 11 housings, 111 perforation, 112 openings
12 closure members, 13 bearings, 2 rotating shafts, 21 permanent magnets
211 sense magnetic surfaces, 3 pawl utmost point spare 3a, the first ring body 3b, second ring body
31 inner ring surfaces, 311 extensions, 32 pole piece 32a wide diameter portions
32b reducing diameter part 321 first lateral margins 322 second lateral margins 323 spiral faces
324 magnetic pole strengths, 33 winding spaces, 34 first joint portions, 35 inner ring surfaces
351 extensions, 36 pole piece 36a wide diameter portion 36b reducing diameter parts
361 first lateral margins, 362 second lateral margins, 363 spiral faces, 364 magnetic pole strengths
37 winding spaces, 38 second joint portions, 391 unfilled corners, 392 protuberances
30 collars, 4 coil groups, 41 drum stands, 411 reference columns
42 coils, 5 pawl utmost point spare 5a, the first ring body 5b, second ring body
51 inner ring surfaces, 511 extensions, 52 pole pieces, 521 first lateral margins
522 second lateral margins, 523 spiral faces, 524 magnetic pole strength 524a, first magnetic pole strength
524b second magnetic pole strength 525 ora terminalis 53 winding spaces 54 first joint portions
55 inner ring surfaces, 551 extensions, 56 pole pieces, 561 first lateral margins
562 second lateral margins, 563 spiral faces, 564 magnetic pole strength 564a, first magnetic pole strength
564b second magnetic pole strength 565 ora terminalis 57 winding spaces 58 second joint portions
591 side cuts, 592 side cuts, 6 pawl utmost point spare 6a, first ring body
6b second ring body 61 inner ring surfaces 611 extensions 62 pole pieces
62a wide diameter portion 62b reducing diameter part 621 first lateral margins 622 second lateral margins
623 spiral faces, 624 magnetic pole strength 624a, the first magnetic pole strength 624b, second magnetic pole strength
625 ora terminalis, 63 winding spaces, 64 first joint portions, 65 inner ring surfaces
651 extensions, 66 pole piece 66a wide diameter portion 66b reducing diameter parts
661 first lateral margins, 662 second lateral margins, 663 spiral faces, 664 magnetic pole strengths
The 664a first magnetic pole strength 664b second magnetic pole strength 665 ora terminalis 67 winding spaces
68 second joint portions, 691 side cuts, 692 side cuts, 71 flabellums
72 impellers, 73 connectors, 74 fan frames, 741 air intake vents
742 air outlets, 8 outer rotor-type motors, 81 pedestals, 811 central siphons
82 stators, 821 pawl pole pieces, 822 coil groups, 83 rotors
9 inner rotor type motors, 91 housings, 911 first housings, 912 second housings
913 bearings, 92 stator structures, 921 magnetic conductive components, 93 rotor structures
931 rotating shafts, 932 magnetic elements, 94 drive units, 95 impellers
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. are described in detail below:
Please refer to shown in Fig. 3,4 and 5, the inner rotor type motor of first embodiment of the invention comprises a shell 1, a rotating shaft 2, a pawl utmost point spare 3 and a coil groups 4.This shell 1 is a hollow housing; This rotating shaft 2 is rotatably in conjunction with this shell 1; It is inner and relative with this rotating shaft 2 that this pawl utmost point spare 3 is incorporated into this shell 1; This coil groups 4 is wound in the predetermined position of this pawl utmost point spare 3; Whereby, can make this pawl utmost point spare 3 produce magnetic field after these coil groups 4 energisings, so that drive this rotating shaft 2 rotary works.
This shell 1 major function is for using for these pawl utmost point spare 3 combinations, and articulates for this rotating shaft 2, and therefore, this shell 1 can be any structural design that can achieve the above object; In present embodiment, this shell 1 is made up of a housing 11 and a closure member 12, and relative two ends of this housing 11 form a perforation 111 and one opening 112 respectively, and this closure member 12 is incorporated into this opening 112; Again, these housing 11 inside are provided with several bearings 13 (also a bearing 13 can only be set) in addition, and wherein a bearing 13 can be incorporated into a side of this perforation 111, and another bearing 13 can be incorporated into this closure member 12.
This rotating shaft 2 articulates in conjunction with these several bearings 13 via this perforation 111, makes this rotating shaft 2 rotatably in conjunction with this shell 1; One end of this rotating shaft 2 can be extended through the outside of this shell 1, and this rotating shaft 2 is in addition in conjunction with the permanent magnet 21 with sense magnetic surface 211, and this permanent magnet 21 is positioned at the inside of this shell 1.
This pawl utmost point spare 3 is incorporated into this shell 1 inside, and this pawl utmost point spare 3 comprises one first ring body 3a and one second ring body 3b.Wherein:
This first ring body 3a has an inner ring surface 31, this inner ring surface 31 is provided with several extensions 311, respectively this extension 311 connects a pole piece 32 respectively, the two opposite sides edge that extends axially direction of this pole piece 32 is respectively one first lateral margin 321 and one second lateral margin 322, and respectively this pole piece 32 also has the spiral face 323 towards this inner ring surface 31 respectively, and towards the magnetic pole strength 324 at this first ring body 3a center, this spiral face 323 and this magnetic pole strength 324 are between this first lateral margin 321 and this second lateral margin 322; In addition, form a winding space 33 between this spiral face 323 and this inner ring surface 31, the end of this first ring body 3a is provided with one first joint portion 34.
This second ring body 3b has an inner ring surface 35, this inner ring surface 35 is provided with several extensions 351, respectively this extension 351 connects a pole piece 36 respectively, the two opposite sides edge that extends axially direction of this pole piece 36 is respectively one first lateral margin 361 and one second lateral margin 362, and respectively this pole piece 36 also has the spiral face 363 towards this inner ring surface 35 respectively, and towards the magnetic pole strength 364 at this second ring body 3b center, this spiral face 363 and this magnetic pole strength 364 are between this first lateral margin 361 and this second lateral margin 362; In addition, form a winding space 37 between this spiral face 363 and this inner ring surface 35, the end of this second ring body 3b is provided with one second joint portion 38.
Second joint portion 38 of first joint portion 34 of this first ring body 3a and this second ring body 3b can mutually combine fixing, so that form this pawl utmost point spare 3, wherein this first joint portion 34 and this second joint portion 38 can be any design that can mutually combine, as shown in Figure 4, present embodiment disclose this first joint portion 34 and this second joint portion 38 be respectively can mutual corresponding combination the plane.After this first ring body 3a and this second ring body 3b assemble mutually, as shown in Figure 5, several pole pieces 36 of this second ring body 3b between several pole pieces 32 of this first ring body 3a, the inboard that makes this pole piece 32,36 respectively have spacing each other and be arranged in this pawl utmost point spare 3 in the form of a ring; Again, the pawl utmost point spare of finishing when assembling 3 is incorporated into this shell 1 when inner, respectively formation one air gap G between the sense magnetic surface 211 of the magnetic pole strength 324,364 of this pole piece 32,36 and this permanent magnet 21.
More in detail, referring again to shown in Figure 5, pole piece 32 at this pawl utmost point spare 3, on 36 the radial section, this pole piece 32 respectively, 36 are formed with contiguous this first lateral margin 321 all respectively, a wide diameter portion 32a of 361,36a, and contiguous this second lateral margin 322, a reducing diameter part 32b of 362,36b, wherein so-called wide diameter portion 32a, 36a and reducing diameter part 32b, 36b is that the radial section that forms different sizes relatively gets final product, for example: only at this first lateral margin 321, during 361 formation hole enlargement designs, this second lateral margin 322,362 relative these first lateral margins 321,361 are less radial section, perhaps, only at this second lateral margin 322, during 362 formation undergauge designs, this first lateral margin 321,361 relative these second lateral margins 322,362 are big radial section; Whereby, the air gap distance between this wide diameter portion 32a, 36a and this permanent magnet 21 is less than the air gap distance between this reducing diameter part 32b, 36b and this permanent magnet 21, so that form the air gap G of unequal-interval.Again, pawl utmost point spare 3 of the present invention roughly can be divided into following several (only be better embodiment, other execution modes that belong to constructed notion must be covered by the present invention) in order to form the mode of this wide diameter portion 32a, 36a and this reducing diameter part 32b, 36b:
One, as shown in Figure 5 is benchmark from this first lateral margin 321,361 towards the direction of this second lateral margin 322,362 with this pawl utmost point spare 3, makes the radial section area of this pole piece 32,36 reduce gradually; Whereby, to form this wide diameter portion 32a, 36a and this reducing diameter part 32b, 36b.
Two, as shown in Figure 6, the pole piece 32,36 of this pawl utmost point spare 3 forms a unfilled corner 391 in this second lateral margin 322,362, utilize the design of this unfilled corner 391, can make the radial section area of the radial section area of these pole piece 32,36 contiguous these second lateral margins 322,362 less than contiguous this first lateral margin 321,361; Therefore, can be by more easy processing mode, to form this wide diameter portion 32a, 36a and this reducing diameter part 32b, 36b.
Three, as shown in Figure 7, the magnetic pole strength 324,364 of this pawl utmost point spare 3 forms a protuberance 392, these protuberance 392 contiguous these first lateral margins 321,361, utilize the design of this protuberance 392, can make the radial section area of the radial section area of these pole piece 32,36 contiguous these first lateral margins 321,361 greater than contiguous this second lateral margin 322,362; Whereby, can utilize the structural strength of this this pole piece 32,36 of protuberance 392 efficient hardenings, and hold concurrently and to form this wide diameter portion 32a, 36a and this reducing diameter part 32b, 36b.
This coil groups 4 can be arranged at the winding space 33,37 of this pawl utmost point spare 3, and this coil groups 4 is wound in the spiral face 323,363 of this pawl utmost point spare 3; Embodiment as shown in the figure, this coil groups 4 has a drum stand 41, be wound in the outer peripheral face of this drum stand 41 for a coil 42, preferable several reference columns 411 that is provided with of one end of this drum stand 41, respectively this reference column 411 can position in the coiling process for this coil 42, to make things convenient for the carrying out of winding operation; Perhaps, this coil groups 4 also can be omitted this drum stand 41, and directly this coil 42 is wound in the spiral face 323,363 of this pawl utmost point spare 3.
By the architectural feature of preceding taking off, the main feature of first embodiment of the invention inner rotor type motor is: utilize wide diameter portion 32a, 36a and reducing diameter part 32b, 36b design at the pole piece 32,36 of this pawl utmost point spare 3, can make formation unequal-interval air gap G between the sense magnetic surface 211 of this magnetic pole strength 324,364 and this permanent magnet 21; Whereby, when these coil groups 4 energisings, make the magnetic resistance of air gap G of wide diameter portion 32a, the 36a be positioned at this pawl pole piece 3, form asymmetrical state with the magnetic resistance of the air gap G that is positioned at this reducing diameter part 32b, 36b, so that form uneven magnetic force, and then reach the effect of startup off normal, make inner rotor type motor of the present invention have the effect that is easy to start and prevent to start the dead point.
Please refer to shown in Fig. 8,9 and 10, the inner rotor type motor of second embodiment of the invention comprises a shell 1, a rotating shaft 2, a pawl utmost point spare 5 and a coil groups 4.Wherein this shell 1, rotating shaft 2 and coil groups 4 are identical with the architectural feature that aforementioned first embodiment is disclosed, and hold and do not give unnecessary details.
The pawl utmost point spare 5 of second embodiment of the invention comprises one first ring body 5a and one second ring body 5b.The architectural feature that the first ring body 3a of this first ring body 5a and the second ring body 5b and first embodiment and the second ring body 3b are identical includes: inner ring surface 51,55; Extension 511,551; Pole piece 52,56; First lateral margin 521,561; Second lateral margin 522,562; Spiral face 523,563; Magnetic pole strength 524,564; Winding space 53,57; First joint portion 54; Second joint portion 58.In addition, this first joint portion 54 and this second joint portion 58 also can be any design that can mutually combine, and as shown in Figure 9, present embodiment discloses this first joint portion 54 and this second joint portion 58 and is cascaded surface that can mutual corresponding combination.
More in detail, the difference of the pawl utmost point spare 5 of second embodiment and the pawl utmost point spare 3 of first embodiment only is: as shown in figure 10, the first ring body 5a of this pawl utmost point spare 5 and the second ring body 5b define respectively and extend axially in this magnetic pole strength 524, a datum line L of 564, pole piece 52 and these extension 511 interconnective sides of this first ring body 5a have an ora terminalis 525, pole piece 56 and these extension 551 interconnective sides of this second ring body 5b also have an ora terminalis 565, this datum line L is by this ora terminalis 525,565 center, this datum line L can be with this magnetic pole strength 524,564 divide into one first magnetic pole strength 524a, 564a and one second magnetic pole strength 524b, 564b, this first magnetic pole strength 524a, 564a is positioned at this first lateral margin 521,561 and this datum line L between, this second magnetic pole strength 524b, 564b is positioned at this second lateral margin 522,562 and this datum line L between, this first magnetic pole strength 524a wherein, the area of 564a and this second magnetic pole strength 524b, the area difference of 564b.For example, present embodiment be disclosed in this pawl utmost point spare 5 axially on, this pole piece 52,56 forms one in this second lateral margin 522,562 and cuts edge 591,592, by these second lateral margin, 522,562 formed side cut 591,592 designs, can make the area of the area of this first magnetic pole strength 524a, 564a greater than this second magnetic pole strength 524b, 564b.In addition, be asymmetric execution mode and must be covered by among the present invention as form area that corner cut (not illustrating) or other can make the area of this first magnetic pole strength 524a, 564a and this second magnetic pole strength 524b, 564b equally at this magnetic pole strength 524b, 564b.
By the architectural feature of preceding taking off, the main feature of second embodiment of the invention inner rotor type motor is: when these coil groups 4 energisings, because this first magnetic pole strength 524a of this pawl utmost point spare 5, the area of 564a and this second magnetic pole strength 524b, the area of 564b is an asymmetrical design, therefore, this pole piece 52,56 at close this first lateral margin 521,561 and second lateral margin 522,562 formed magnetic resistance are also asymmetric, so can reach equally as the effect of the described startup off normal of first embodiment, make inner rotor type motor of the present invention have the effect that is easy to start and prevent to start the dead point.
Please refer to shown in Figure 11ly, disclose the pawl utmost point spare 6 of third embodiment of the invention, this pawl utmost point spare 6 equally can be in conjunction with shell 1, rotating shaft 2 and the coil groups 4 of aforementioned first and second embodiment, to constitute inner rotor type motor of the present invention.
The pawl utmost point spare 6 of third embodiment of the invention comprises one first ring body 6a and one second ring body 6b.The first ring body 3a, the 5a of this first ring body 6a and the second ring body 6b and first and second embodiment and the second ring body 3b, the architectural feature that 5b is identical include: inner ring surface 61,65; Extension 611,651; Pole piece 62,66; First lateral margin 621,661; Second lateral margin 622,662; Spiral face 623,663; Magnetic pole strength 624,664; Ora terminalis 625,665; Winding space 63,67; First joint portion 64; Second joint portion 68.In addition, this first joint portion 64 and this second joint portion 68 also can be any design that can mutually combine, and as shown in figure 11, present embodiment discloses this first joint portion 64 and this second joint portion 68 and is inclined-plane that can mutual corresponding combination.
More in detail, the pawl utmost point spare 6 of the 3rd embodiment is with the difference of the pawl utmost point spare of first and second embodiment 3,5: this pawl utmost point spare 6 combines the architectural feature of the pawl utmost point spare 3,5 of first and second embodiment simultaneously, mainly on the radial section of the pole piece 62,66 of this pawl utmost point spare 6, form a wide diameter portion 62a, the 66a of contiguous this first lateral margin 621,661 respectively, and a reducing diameter part 62b, the 66b of contiguous this second lateral margin 622,662; Cut edge 691,692 in second lateral margin, 622,662 formation one of this pole piece 62,66 more in addition, so that this magnetic pole strength 624,664 is distinguished into the first magnetic pole strength 624a, 664a and the second magnetic pole strength 624b, the 664b of different area; Whereby, because the pawl pole piece 6 of present embodiment is simultaneously in conjunction with the architectural feature of the pawl pole piece 3,5 of first and second embodiment, therefore, the inner rotor type motor of present embodiment can provide better being easy to start and prevent to start the effect at dead point.
Inner rotor type motor of the present invention can be applicable to cooling fan structure in addition.For example, please refer to shown in Figure 12ly, this rotating shaft 2 is exposed to an end of this shell 1 outside can be in conjunction with a flabellum 71, to constitute a radiator fan; Perhaps, please refer to shown in Figure 13, this rotating shaft 2 is exposed to an end of this shell 1 outside can be in conjunction with an impeller 72, and this shell 1 can have the radiator fan of an air intake vent 741 and an air outlet 742 by the external fan frame 74 of several connectors 73 (as rib or stator blade) with formation.Whereby, this radiator fan can be installed in various electronic installation or electronic instrument, to reach predetermined thermolysis.
Again, the first ring body 3a of the pawl utmost point spare 3,5,6 of the inner rotor type motor of various embodiments of the present invention, 5a, 6a and the second ring body 3b, 5b, 6b also can utilize " collar " that better locating effect is provided.Please refer to shown in Figure 14, pawl utmost point spare 3 with first embodiment proposes explanation, this pawl utmost point spare 3 can comprise a collar 30 in addition, this the first ring body 3a and the second ring body 3b are incorporated in this collar 30 (preferable utilize tight fit mode in conjunction with), to utilize this collar 30 this first ring body 3a of location and second ring body 3b; Whereby, this coil groups 4 can be arranged at the winding space 33,37 (coil groups 4 does not illustrate) of this pawl utmost point spare 3 equally, and assists and fix this first ring body 3a and the second ring body 3b, to reach better positioning action.In addition, utilize this collar 30 in order to fix the design of this first ring body 3a and this second ring body 3b, first joint portion 34 of this first ring body 3a in fact can not be in contact with one another with second joint portion 38 of this second ring body 3b yet; Moreover this collar 30 also can also promptly directly make this first ring body 3a and this second ring body 3b can be tightly fixed in the inside of this shell 1 directly with shell 1 replacement of inner rotor type motor.
In sum, inner rotor type motor of the present invention is by pawl utmost point spare 3,5,6 structural designs of each embodiment, really can to have a start-up control bad and can't prevent to start problem such as dead point in order to solve existing inner rotor type motor, to promote the running efficiency of inner rotor type motor.
Claims (25)
1. inner rotor type motor is characterized in that comprising:
A shell;
A rotating shaft can be rotatably in conjunction with this shell, and this rotating shaft is in conjunction with a permanent magnet with sense magnetic surface, and this permanent magnet is positioned at the inside of this shell;
A pawl utmost point spare, be incorporated into this enclosure, this pawl utmost point spare comprises one first ring body and one second ring body, this first ring body and second ring body all have an inner ring surface, this inner ring surface is provided with several extensions, respectively this extension connects a pole piece respectively, the two opposite sides edge that extends axially direction of this pole piece is respectively one first lateral margin and one second lateral margin, one side of this pole piece is a spiral face towards this inner ring surface, opposite side is a magnetic pole strength, form winding space between the spiral face of this pole piece and this inner ring surface, the magnetic pole strength of this pole piece is towards the sense magnetic surface of this permanent magnet, form air gap between this magnetic pole strength and this sense magnetic surface, and this pole piece forms a wide diameter portion of contiguous this first lateral margin and a reducing diameter part of contiguous this second lateral margin respectively, to form this air gap of unequal-interval; And
A coil groups is arranged at the winding space of this pawl utmost point spare, and this coil groups is wound in the spiral face of this pawl utmost point spare.
2. inner rotor type motor according to claim 1 is characterized in that, the radial section area of this pole piece is reduced towards the direction of this second lateral margin gradually by this first lateral margin.
3. inner rotor type motor according to claim 1 is characterized in that, the pole piece of this pawl utmost point spare forms a unfilled corner in this second lateral margin.
4. inner rotor type motor according to claim 1 is characterized in that, the magnetic pole strength of this pawl utmost point spare forms a protuberance, contiguous this first lateral margin of this protuberance.
5. according to claim 1,2,3 or 4 described inner rotor type motors, it is characterized in that, one end of this first ring body is provided with one first joint portion, one end of this second ring body is provided with one second joint portion, and first joint portion of this first ring body and second joint portion of this second ring body interfix.
6. inner rotor type motor according to claim 5, it is characterized in that, first ring body of this pawl utmost point spare and second ring body define respectively and extend axially in a datum line of this magnetic pole strength respectively, the interconnective side in the pole piece of this first ring body and this extension has an ora terminalis, the interconnective side in the pole piece of this second ring body and this extension has an ora terminalis, the pole piece of this datum line by this first ring body and the center of the ora terminalis of the pole piece of this second ring body, this datum line respectively this magnetic pole strength is all divided into one first magnetic pole strength and one second magnetic pole strength, this first magnetic pole strength is between this first lateral margin and this datum line, this second magnetic pole strength is between this second lateral margin and this datum line, and the area of this first magnetic pole strength is different with the area of this second magnetic pole strength.
7. inner rotor type motor according to claim 5 is characterized in that, first joint portion of this first ring body and second joint portion of this second ring body be respectively can mutual corresponding combination plane, cascaded surface and inclined-plane wherein a kind of.
8. according to claim 1,2,3 or 4 described inner rotor type motors, it is characterized in that, this shell is made up of a housing and a closure member, relative two ends of this housing form a perforation and an opening respectively, this closure member is incorporated into this opening, this enclosure interior is provided with at least one bearing in addition, and this rotating shaft stretches through this perforation pivot joint in conjunction with this at least one bearing.
9. according to claim 1,2,3 or 4 described inner rotor type motors, it is characterized in that this pawl utmost point spare comprises a collar in addition, this first ring body and second ring body are incorporated in this collar.
10. inner rotor type motor according to claim 9 is characterized in that, this first ring body and this second ring body are not in contact with one another.
11. an inner rotor type motor is characterized in that comprising:
A shell;
A rotating shaft can be rotatably in conjunction with this shell, and this rotating shaft is in conjunction with a permanent magnet with sense magnetic surface, and this permanent magnet is positioned at the inside of this shell;
A pawl utmost point spare, be incorporated into this enclosure, this pawl utmost point spare comprises one first ring body and one second ring body, this first ring body and second ring body all have an inner ring surface, this inner ring surface is provided with several extensions, respectively this extension connects a pole piece respectively, the two opposite sides edge that extends axially direction of this pole piece is respectively one first lateral margin and one second lateral margin, one side of this pole piece is a spiral face towards this inner ring surface, opposite side is a magnetic pole strength, form winding space between the spiral face of this pole piece and this inner ring surface, the magnetic pole strength of this pole piece is towards the sense magnetic surface of this permanent magnet, form air gap between this magnetic pole strength and this sense magnetic surface, and an end of this first ring body is provided with one first joint portion, one end of this second ring body is provided with one second joint portion, first joint portion of this first ring body and second joint portion of this second ring body mutually combine, first ring body of this pawl utmost point spare and second ring body define respectively and extend axially in a datum line of this magnetic pole strength respectively, the interconnective side in the pole piece of this first ring body and this extension has an ora terminalis, the interconnective side in the pole piece of this second ring body and this extension has an ora terminalis, the pole piece of this datum line by this first ring body and the center of the ora terminalis of the pole piece of this second ring body, this datum line respectively this magnetic pole strength is all divided into one first magnetic pole strength and one second magnetic pole strength, this first magnetic pole strength is between this first lateral margin and this datum line, this second magnetic pole strength is between this second lateral margin and this datum line, and the area of this first magnetic pole strength is different with the area of this second magnetic pole strength; And
A coil groups is arranged at the winding space of this pawl utmost point spare, and this coil groups is wound in the spiral face of this pawl utmost point spare.
12. inner rotor type motor according to claim 11 is characterized in that, respectively side cut of second lateral margin of this pole piece formation or respectively this magnetic pole strength formation corner cut make the area of the area of this first magnetic pole strength greater than this second magnetic pole strength.
13. according to claim 11 or 12 described inner rotor type motors, it is characterized in that, first joint portion of this first ring body and second joint portion of this second ring body be respectively can mutual corresponding combination plane, cascaded surface and inclined-plane wherein a kind of.
14. according to claim 11 or 12 described inner rotor type motors, it is characterized in that, this shell is made up of a housing and a closure member, relative two ends of this housing form a perforation and an opening respectively, this closure member is incorporated into this opening, this enclosure interior is provided with at least one bearing in addition, and this rotating shaft stretches through this perforation pivot joint in conjunction with this at least one bearing.
15., it is characterized in that this pawl utmost point spare comprises a collar in addition according to claim 11 or 12 described inner rotor type motors, this first ring body and second ring body are incorporated in this collar.
16. the pawl utmost point spare of an inner rotor type motor, it is characterized in that, it comprises one first ring body and one second ring body, this first ring body and second ring body all have an inner ring surface, this inner ring surface is provided with several extensions, respectively this extension connects a pole piece respectively, the two opposite sides edge that extends axially direction of this pole piece is respectively one first lateral margin and one second lateral margin, one side of this pole piece is a spiral face towards this inner ring surface, opposite side is a magnetic pole strength, form winding space between this spiral face and this inner ring surface, this pole piece forms a wide diameter portion of contiguous this first lateral margin and a reducing diameter part of contiguous this second lateral margin respectively.
17. the pawl utmost point spare of inner rotor type motor according to claim 16 is characterized in that, the radial section area of this pole piece is reduced towards the direction of this second lateral margin gradually by this first lateral margin.
18. the pawl utmost point spare of inner rotor type motor according to claim 16 is characterized in that, the pole piece of this pawl utmost point spare forms a unfilled corner in this second lateral margin.
19. the pawl utmost point spare of inner rotor type motor according to claim 16 is characterized in that, the magnetic pole strength of this pawl utmost point spare forms a protuberance, contiguous this first lateral margin of this protuberance.
20. pawl utmost point spare according to claim 16,17,18 or 19 described inner rotor type motors, it is characterized in that, one end of this first ring body is provided with one first joint portion, one end of this second ring body is provided with one second joint portion, and first joint portion of this first ring body and second joint portion of this second ring body interfix.
21. the pawl utmost point spare according to claim 16,17,18 or 19 described inner rotor type motors is characterized in that this pawl utmost point spare comprises a collar in addition, this first ring body and second ring body are incorporated in this collar.
22. the pawl utmost point spare of inner rotor type motor according to claim 21 is characterized in that, this first ring body and this second ring body be not for being in contact with one another.
23. the pawl utmost point spare of an inner rotor type motor, it is characterized in that, it comprises one first ring body and one second ring body, this first ring body and second ring body all have an inner ring surface, this inner ring surface is provided with several extensions, respectively this extension connects a pole piece respectively, the two opposite sides edge that extends axially direction of this pole piece is respectively one first lateral margin and one second lateral margin, one side of this pole piece is a spiral face towards this inner ring surface, opposite side is a magnetic pole strength, form a winding space between this spiral face and this inner ring surface, and an end of this first ring body is provided with one first joint portion, one end of this second ring body is provided with one second joint portion, first joint portion of this first ring body and second joint portion of this second ring body mutually combine, first ring body of this pawl utmost point spare and second ring body define respectively and extend axially in a datum line of this magnetic pole strength respectively, the interconnective side in the pole piece of this first ring body and this extension has an ora terminalis, the interconnective side in the pole piece of this second ring body and this extension has an ora terminalis, the pole piece of this datum line by this first ring body and the center of the ora terminalis of the pole piece of this second ring body, this datum line respectively this magnetic pole strength is all divided into one first magnetic pole strength and one second magnetic pole strength, this first magnetic pole strength is between this first lateral margin and this datum line, this second magnetic pole strength is between this second lateral margin and this datum line, and the area of this first magnetic pole strength is different with the area of this second magnetic pole strength.
24. the pawl utmost point spare of inner rotor type motor according to claim 23 is characterized in that, respectively side cut of second lateral margin of this pole piece formation or respectively this magnetic pole strength formation corner cut make the area of the area of this first magnetic pole strength greater than this second magnetic pole strength.
25. the pawl utmost point spare according to claim 23 or 24 described inner rotor type motors is characterized in that, this pawl utmost point spare comprises a collar in addition, and this first ring body and second ring body are incorporated in this collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010107421.6A CN102148554B (en) | 2010-02-09 | 2010-02-09 | Inner rotor type motor and claw pole piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010107421.6A CN102148554B (en) | 2010-02-09 | 2010-02-09 | Inner rotor type motor and claw pole piece thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102148554A true CN102148554A (en) | 2011-08-10 |
| CN102148554B CN102148554B (en) | 2021-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010107421.6A Active CN102148554B (en) | 2010-02-09 | 2010-02-09 | Inner rotor type motor and claw pole piece thereof |
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| Country | Link |
|---|---|
| CN (1) | CN102148554B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411006A (en) * | 2016-11-15 | 2017-02-15 | 华中科技大学 | Claw-pole-structure rotor of axial flux permanent magnet |
| WO2023056047A1 (en) * | 2021-10-01 | 2023-04-06 | Baker Hughes Oilfield Operations Llc | Permanent magnet motor for electrical submersible pump and method of assembly rotor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087841U (en) * | 1991-04-19 | 1991-10-30 | 南京电扇厂 | High-efficiency non-symmetrical stator jaw pole permanent-magnet synchronous electric machine |
| CN101159390A (en) * | 2006-07-21 | 2008-04-09 | 株式会社日立产机系统 | Claw-pole type singel-phase motor, and claw-pole type single-phase motor system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2086016U (en) * | 1991-04-19 | 1991-10-02 | 南京电扇厂 | Permasyn motor with non-symmetrical stator claw-poles |
| JP2004248363A (en) * | 2003-02-12 | 2004-09-02 | Fuji Electric Fa Components & Systems Co Ltd | Claw pole motor |
| CN100529428C (en) * | 2005-08-05 | 2009-08-19 | 富准精密工业(深圳)有限公司 | Radiation fan |
| JP4483919B2 (en) * | 2007-09-20 | 2010-06-16 | パナソニック電工株式会社 | Claw pole type motor and pump |
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2010
- 2010-02-09 CN CN201010107421.6A patent/CN102148554B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087841U (en) * | 1991-04-19 | 1991-10-30 | 南京电扇厂 | High-efficiency non-symmetrical stator jaw pole permanent-magnet synchronous electric machine |
| CN101159390A (en) * | 2006-07-21 | 2008-04-09 | 株式会社日立产机系统 | Claw-pole type singel-phase motor, and claw-pole type single-phase motor system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411006A (en) * | 2016-11-15 | 2017-02-15 | 华中科技大学 | Claw-pole-structure rotor of axial flux permanent magnet |
| CN106411006B (en) * | 2016-11-15 | 2018-07-24 | 华中科技大学 | A kind of claw-pole structure rotor of axial flux permanent magnet body |
| WO2023056047A1 (en) * | 2021-10-01 | 2023-04-06 | Baker Hughes Oilfield Operations Llc | Permanent magnet motor for electrical submersible pump and method of assembly rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102148554B (en) | 2021-03-16 |
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