CN103475126B - Rotor structure of motor and brushless DC motor with same - Google Patents
Rotor structure of motor and brushless DC motor with same Download PDFInfo
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- CN103475126B CN103475126B CN201310450722.2A CN201310450722A CN103475126B CN 103475126 B CN103475126 B CN 103475126B CN 201310450722 A CN201310450722 A CN 201310450722A CN 103475126 B CN103475126 B CN 103475126B
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- 230000004907 flux Effects 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims description 36
- 229920000297 Rayon Polymers 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract 3
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 230000004888 barrier function Effects 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 210000000576 arachnoid Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention provides a rotor structure of a motor and a brushless dc motor with the rotor structure. The rotor structure includes a rotating shaft, a rotor core and permanent magnet blocks; the rotating shaft penetrates through the center of the rotor core, clamping grooves are evenly formed in the periphery of the rotor core at intervals, convex cones are formed between the adjacent clamping grooves, the permanent magnet blocks are arranged in the clamping grooves, and gaps are formed in the positions, corresponding to the convex cones, between every two adjacent permanent magnet blocks; the rotor structure further comprises adhesive and a fixed mount, the fixed mount is provided with barrier strips, the gaps are filled with the adhesive, the rotor core is contained in the fixed mount, and the barrier strips press against the edges of outer ring surfaces of every two permanent magnet blocks on the two sides of each gap; a plurality of magnetic flux holes are formed in the surface of the rotor core, construction blocks and partition walls are formed between the adjacent magnetic flux holes, wherein the construction blocks and the partition walls are connected, and the bisectrix of the middle between each construction block and each partition wall coincides with the bisectrix of each convex cone. According to the rotor structure of the motor, the stationarity of the permanent magnet blocks of a rotor can be improved, and magnetic conductive performance is enhanced.
Description
Technical field
The present invention relates to technical field of motors, relate in particular to a kind of rotor structure of motor and there is the brshless DC motor of this rotor structure.
Background technology
Brshless DC motor is due to its speed-regulating range width, and low-speed performance is good, operates steadily, and noise is low, and efficiency advantages of higher has widely and quotes at each production field.
CN201220620741 discloses a kind of brshless DC motor, its rotor 1 has rotor core 11 and multiple arc-shaped permanent magnet piece, in rotor core 11, be provided with deep-slotted chip breaker, multiple arc-shaped permanent magnet pieces are around being fixed in the deep-slotted chip breaker of rotor core 11, so this kind is by utilizing the fixing of deep-slotted chip breaker and magnet and the attraction between iron core 11 to fix the mode of permanent magnet blocks, permanent magnet blocks stability is bad, the anxious stopping time in rotor High Rotation Speed, permanent magnet blocks is due to likely relative deep-slotted chip breaker displacement or the whipping of effect of inertia, especially, along with the use duration of motor, the skew slightly of each relative deep-slotted chip breaker of permanent magnet blocks, all can form hidden danger to follow-up safe operation, and because the displacement of permanent magnet blocks also can impact magnetic flux, affect rotating speed.If sheathed valve jacket is protected permanent magnet blocks in periphery, the gap of perimeter surface is very little in the outer surface of permanent magnet and stator structure, is not easy to arrange housing, and valve jacket can block the magnetic line of force of permanent magnet, and magnetic flux is impacted, and permeance property is poor.In addition, the magnetic flux pore structure that the surface of rotor core is offered is larger on the impact of magnetic flux, and in existing rotor structure, magnetic flux hole is undesirable to the availability of magnetic flux, and is unfavorable for saving rotor material.Therefore the shape to magnetic flux hole and Position Design are also this area designer's technical research directions.
Summary of the invention
In view of the above, be necessary to provide a kind of permanent magnet blocks stationarity good, and by can improve the rotor structure of the motor of permeance property to the design in magnetic flux hole.
A kind of rotor structure of motor, comprise rotating shaft, rotor core, permanent magnet blocks, described rotor core offers centre bore, described rotating shaft is through the centre bore of rotor core affixed with rotor core, the even compartment of terrain of rotor core periphery offers draw-in groove, between adjacent draw-in groove, be formed with convex cone, described convex cone cross section is triangular in shape, described permanent magnet blocks is arranged in the draw-in groove of rotor core, between adjacent two permanent magnet blocks, the position of corresponding convex cone is formed with gap, described rotor structure also comprises viscose glue and fixed mount, described viscose glue is filled in described gap, described fixed mount comprises accommodates frame and connection cover, the described frame of accommodating comprises chassis and is vertically arranged on chassis periphery and the uniform some blend stops in interval, described in being arranged on, described rotor core accommodates in frame, described blend stop compresses the edge of the outer surface of the permanent magnet blocks of both sides, described gap, described in described connection cover is connected to, accommodate the one end on the relative chassis of frame and fix with described blend stop, described rotating shaft two ends pass from described chassis and connection cover center respectively, on the surface of described rotor core, offer some magnetic fluxs hole, the spaced walls that is formed with building block between phase vicinal magnetic flux hole and is connected with building block, building block, the middle bisector of spaced walls overlaps with the bisector of described convex cone,
At the bottom of described magnetic flux hole comprises hole, Duan Yukong pushes up section, at the bottom of hole, section is positioned at a side of contiguous centre bore, the side that at the bottom of hole, section has end arc wall and is connected to arc wall two ends, the end is stretched wall, the contiguous centre bore of end arc wall, the arc direction of end arc wall and the arc direction of centre bore are opposing, the side that is connected to arc wall two ends, the end is stretched wall respectively along the radially outward Zhou Yanshen of rotor core, top, described hole section is " ∧ " shape, two contoured wall that top, described hole section comprises corner point and drawn by corner point, form accordingly a drift angle, described drift angle span is 135 degree to 150 degree; The middle part of described corner point neighbouring card trench bottom, two contoured wall connect respectively described side stretches the extending end of wall, and stretches wall formation joint angle with side, and described joint angle span is 120 degree to 135 degree;
Described blend stop is semi-cylindrical, has arcuate flanks, is pressed against the junction of adjacent permanent magnet piece, and the centre of arcuate flanks is extended with divider vertically, and described divider stretches in described gap;
Described blend stop has flat sides set, described flat sides set is formed with card holding structure on surface, card holding structure comprises guide pad and grip block, described guide pad is sphenoid, be arranged on the top side of blend stop, for guiding blend stop Snap joint lid, described grip block is rectangle block, be arranged on guide pad below, between grip block and guide pad, form holding tank; .
The center on described chassis offers the first sheathed hole, on described connection cover, offer the second axle sleeve hole and some hole clippings, described some hole clippings are opened in the periphery of contiguous connection cover, some hole clippings are corresponding with the position of described blend stop, accommodating after frame in order to cover at connection cover, described hole clipping coordinates with the card holding structure on described blend stop top, and connection cover supports one end of rotor core, with described chassis of accommodating frame, rotor core two ends is clamped.。
In addition, be necessary to provide a kind of brshless DC motor with above-mentioned rotor structure.
A kind of brshless DC motor, comprise casing, stator structure, rotor structure, holder and sleeve part, described stator structure is set in casing, stator structure has center mounting hole, described rotor structure) be set in center mounting hole, described holder is fixedly mounted in casing, and it coordinates sleeve part that described rotor structure is installed, and described rotor structure has the rotor structure of said structure feature.
Compared to prior art, the rotor structure of motor of the present invention is by arranging viscose glue in the gap between permanent magnet, and by the accommodating rotor core of fixed mount and permanent magnet are set, the blend stop of fixed mount compresses the edge of the outer ring surface of two permanent magnets of both sides, gap, thereby reinforce the positional stability of permanent magnet in rotor core outside, by given shape and position are arranged to in the magnetic flux hole of rotor core, the spaced walls that is formed with building block between phase vicinal magnetic flux hole and is connected with building block, building block, the middle bisector of spaced walls overlaps with the bisector of described convex cone, can improve permeance property.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation at the present invention first preferred embodiment brshless DC motor the first visual angle;
Fig. 2 is the decomposing schematic representation at the present invention first preferred embodiment brshless DC motor the second visual angle;
Fig. 3 is the decomposing schematic representation of the rotor structure of the brshless DC motor shown in Fig. 1;
Fig. 4 is the vertical view of the rotor core of the rotor structure of the brshless DC motor shown in Fig. 1;
Fig. 5 is the local enlarged diagram of the rotor structure of the brshless DC motor shown in Fig. 1;
Fig. 6 is the structural representation of the blend stop of the rotor structure of the brshless DC motor shown in Fig. 1;
Fig. 7 is the overall schematic after brshless DC motor assembling of the present invention;
Fig. 8 is the decomposing schematic representation of the rotor structure of the present invention's the second preferred embodiment brshless DC motor;
Fig. 9 is the vertical view of the rotor core of the rotor structure of the present invention's the 3rd preferred embodiment brshless DC motor.
Embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, Fig. 2, the invention provides a kind of brshless DC motor, comprise casing 10, stator structure 20, rotor structure 30, holder 40 and sleeve part 50.Described stator structure 20 is set in casing 10, stator structure 20 has center mounting hole, described rotor structure 30 is set in the center mounting hole of stator structure 20, described holder 40 is fixedly mounted in casing 10, it coordinates sleeve part 50 that described rotor structure 30 is installed, and rotor structure 30 can entirety be rotated relative to holder 40.
Described casing 10 comprises bottom 11, main body cylinder 12 and front end housing 13.Described bottom 11 has diapire 111 and is vertically connected to the periphery 112 at diapire 111 edges, on described periphery 112, offers structure grooves or hole, is connected with main body cylinder 12 for bottom 11.In described bottom 11, can be provided with circuit board (not shown).The hollow cylinder that described main body cylinder 12 connects for two ends, its one end is connected with the periphery 112 of described bottom 11, and the other end connects described front end housing 13.On main body cylinder 12, offer louvre 121.Described front end housing 13 centers offer perforation 131, pass for the rotating shaft of rotor structure 30, and the outer surface of front end housing 13 is formed with rinforcement bar 132, and rinforcement bar 132 is " ten " word and distributes.Described front end housing 13 surrounds a containing cavity with main body cylinder 12, bottom 11, accommodating described stator structure 20, rotor structure 30 and holder 40.
Described stator structure 20 comprises cylindrical shell 21 and coiling (not shown), on described cylindrical shell 21 inwalls, offers winding slot 22.Described winding slot 22 extends vertically and even interval is offered, and described coiling is through winding slot 22 around being rolled into required loop construction, and this technology is techniques well known, is not described herein at this.
Refer to Fig. 3, Fig. 4, described rotor structure 30 comprises rotating shaft 31, rotor core 32 and permanent magnet blocks 33.Described rotor core 32 is the stacked formation of some round iron plates, and iron plate center offers centre bore 321, in order to sheathed described rotating shaft 31.The even compartment of terrain of iron plate periphery offers draw-in groove 322, and forms convex cone 323 322 of adjacent draw-in grooves.Described convex cone 323 cross sections are triangular in shape.On iron plate, also offer some magnetic fluxs hole 324, its quantity is suitable with described convex cone 323 quantity.On iron plate surface, on 322 sections of corresponding surfaces of each draw-in groove, offer a magnetic flux hole 324.
Described magnetic flux hole 324 is like prismatic structure.At the bottom of described magnetic flux hole 324 comprises hole, section 41 is pushed up section 42 with hole.At the bottom of hole, section 41 is positioned at a side of contiguous centre bore 321, and the side that at the bottom of hole, section 41 has end arc wall 411 and is connected to arc wall 411 two ends, the end is stretched wall 412.End arc wall 411 is near centre bore 321, and the arc direction of end arc wall 411 and the arc direction of centre bore 321 are opposing.Side is stretched the radially outward Zhou Yanshen of wall 412 along iron plate.Top, described hole section 42 is " ∧ " shape, comprises a corner point 421 and two contoured wall 422 of being drawn by corner point 421, forms accordingly an apex angle α, and the value of α is between 120 degree to 160 degree, and preferably value is 135 degree to 150 degree.The middle part of described corner point 421 contiguous draw-in groove 322 bottoms, two contoured wall 422 connect respectively described side stretches the extending end of wall 412, and stretches wall 412 with side and form a joint angle β.The value of β is between 100 degree to 150 degree, and preferably value is 120 degree to 135 degree.So, form building blocks 423 422 of the adjacent contoured wall in phase vicinal magnetic flux hole 324, stretch and between wall 412, form the uniform spaced walls 424 of spacer thickness in sides adjacent.The position of described building block 423, spaced walls 424 is corresponding with convex cone 323 positions, can be considered on a line, and particularly, the middle bisector L of building block 423, spaced walls 424 overlaps through the bisector L ' of described convex cone 323.So, material can be saved, magnetic property can be improved again.Its principle is as follows: two permanent magnet blocks 33 are arranged on after adjacent draw-in groove 322, can form a magnetic line of force loop, the magnetic line of force can be through the gap of 33 of two permanent magnet blocks, because the magnetic conductivity of iron is stronger than air, the magnetic line of force conducts through building block 423 and spaced walls 424 after by gap, can improve the conductive performance of the magnetic line of force.If the magnetic line of force enters in air after by gap, the conductibility of the magnetic line of force is poor.And, by inspection, be 135 degree to 150 degree in apex angle α value, joint angle β value is 120 degree to 135 degree, maximizing ground is saved material and is improved magnetic line of force conductive performance.
Incorporated by reference to consulting Fig. 5, the curved body of described permanent magnet blocks 33, has interior ring surface and outer ring surface, the length of the length respective rotor iron core 32 of permanent magnet blocks 33.Described permanent magnet blocks 33 is arranged in the draw-in groove 322 of rotor core 32, ring surface and described draw-in groove 322 bottom surface close neighbours in it, and 33 of adjacent two permanent magnet blocks are formed with gap, and gap is corresponding with the position of convex cone 323.
Described rotor structure 30 also comprises viscose glue (not shown) and fixed mount 60.Described viscose glue is filled in gap.Please again consult Fig. 3, described fixed mount 60 comprise accommodate frame 61 and with the connection cover 62 of accommodating frame 61 and coordinating.The described frame 61 of accommodating comprises chassis 63 and is vertically arranged on chassis 63 peripheries and the uniform some blend stops 64 in interval.63 center, described chassis offers the first sheathed hole 631, passes for rotating shaft 31.The bottom surface on described chassis 63 is formed with and is arachnoid the first fin 632 (consulting Fig. 2), in order to reinforce chassis 63.
Refer to Fig. 6, described blend stop 64 is semi-cylindrical, has arcuate flanks 641 and flat sides set 642.The top of described blend stop 64 is formed with card holding structure 643 on described flat sides set 642 surfaces, card holding structure 643 comprises guide pad 644 and grip block 645, described guide pad 644 is sphenoid, is arranged on the top of blend stop 64, for guiding blend stop 64 Snap joint lids 62.Described grip block 645 is rectangle block, is arranged on guide pad 644 belows, and forms holding tank 646 between guide pad 644.
On described connection cover 62, offer the second axle sleeve hole 621 and some hole clippings 622, described the second axle sleeve hole 621 is opened in connection cover 62 center, passes for described rotating shaft 31.Described some hole clippings 622 are opened in the periphery of contiguous connection cover 62, and some hole clippings 622 are corresponding with the position of described blend stop 64, and in order to cover and to accommodate after frame 61 at connection cover 62, described hole clipping 622 coordinates with the card holding structure 643 on described blend stop 64 tops.The outer surface of described connection cover 62 is formed with and is arachnoid the second fin 623, covers 62 in order to reinforce the connection.
Described holder 40 comprises retainer plate 41 and is arranged on the support 42 in retainer plate 41, and described support 42 centers are formed with sleeve 421, to coordinate described sleeve part 50 that described rotor structure 30 is installed.
Described sleeve part 50 comprises packing ring 51 and some pads 52, is arranged in rotating shaft 31 in order to stacked, make rotor structure 30 relatively holder 40 and front end housing 13 without frictional rotation.
While assembling described brshless DC motor, first assemble described rotor structure 30, by stacked some iron plates acquisition rotor core 32, the length of rotor core 32 can be determined according to required motor power, and rotor core 32 is thicker, and the permanent magnet of placement is long, and magnetism intensity is also large.Rotating shaft 31 is passed the centre bore 321 of rotor core 32 and fixes with rotor core 32.Permanent magnet blocks 33 is arranged in draw-in groove 322, in the gap of 33 of adjacent permanent magnet pieces, fills viscose glue; Then the rotor core 32 that is equipped with permanent magnet blocks 33 is mounted in fixed mount 60, rotor core 32 is placed to accommodates in frame 61, and the arcuate flanks 641 of blend stop 64 compresses the edge of the outer ring surface of two permanent magnet blocks 33 that form described gap; Described connection cover 62 is assembled to and is accommodated on frame 61, card holding structure 643 buckles on hole clipping 622 and the described blend stop 64 of connection cover 62, connection cover 62 supports one end of rotor core 32, with described chassis 63 of accommodating frame 61, rotor core 32 two ends is clamped.Described rotating shaft 31 two ends pass from second axle sleeve hole 621 of accommodating the first sheathed hole 631 and the described connection cover 62 on chassis 63 of frame 61 respectively.So, the installation of rotor structure 30.After installation, the surface of permanent magnet blocks 33 is exposed to the gap between described blend stop 64, blend stop 64 can not exert an influence to the magnetic line of force, and blend stop 64 is positioned at the recessed position of two permanent magnet blocks 33 adjoiners, permanent magnet blocks 33 outer surfaces are not outstanding relatively for the flat sides set 642 of blend stop 64, in the time that rotor structure 30 rotates, can the not rub interior perimeter surface of described stator structure 20 of described blend stop 64.And described building block 423 and spaced walls 424 are corresponding with the interstitial site between adjacent permanent magnet piece 33.
Then by rotating shaft 31 in the one end of accommodating frame 61 sheathed sleeve part 50 and described holder 40, and be mounted in the bottom 11 of casing 10; By in rotating shaft 31 in the sheathed sleeve part 50 in one end of connection cover 62; Main body cylinder 12 is connected with bottom 11, then front end housing 13 is connected on main body cylinder 12, rotating shaft 31 passes from the perforation 131 of front end housing 13.So, the assembling of brshless DC motor completes (referring to Fig. 7).
Refer to Fig. 8, shown in another preferred embodiment of brushless DC motor rotor structure of the present invention, in order further to reinforce permanent magnet blocks 33 stationarity that are attached in draw-in groove 322, in the middle of the arcuate flanks 641 of described blend stop 64, be extended with vertically divider 647, when blend stop 64 is installed, described divider 647 stretches in the gap that is filled with viscose glue, can further limit the position of permanent magnet blocks 33, reinforces permanent magnet blocks 33 stationarity.
Refer to Fig. 9, the 3rd preferred embodiment of brushless DC motor rotor structure of the present invention, the magnetic flux hole 324 of described rotor core 32 can be offered as V-shape hole, the building block 72 that is formed with spaced walls 71 between adjacent V-shape hole and is connected with spaced walls 71, and form accordingly and promisingly offer V-shape hole and be formed on the entity portion 53 between two intersection dead slots, the middle bisector of the building block 72 that spaced walls 71 between adjacent V-shape hole and its one connect is overlapped with the bisector of described convex cone 323, and the middle bisector of entity portion 73 overlaps with the bisector of described convex cone 323, and described bisector is all passed through the center of circle of rotor core 32.So, the magnetic line of force is propagated will, through spaced walls 71 and building block 72, be conducive to the conduction of the magnetic line of force, only economize the structural design that is inferior to the rotor core 32 of the first preferred embodiment on material.
To sum up, the rotor structure 20 of brshless DC motor of the present invention, by fixed mount 60 is set, can guarantee that rotor structure 20 is in the time rotating, described permanent magnet blocks 33 can not produce skew, and fixed mount 60 can not stop the magnetic line of force, and the magnetic line of force is exerted an influence, thereby can not affect the performance of rotor.And by the magnetic flux hole of given shape is set, can improve magnetic line of force conduction, improve the electromagnetic performance of rotor structure.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. the rotor structure of a motor (30), comprise rotating shaft (31), rotor core (32), permanent magnet blocks (33), described rotor core (32) offers centre bore (321), described rotating shaft (31) is through the centre bore (321) of rotor core (32) affixed with rotor core (32), the even compartment of terrain of rotor core (32) periphery offers draw-in groove (322), between adjacent draw-in groove (322), be formed with convex cone (323), described convex cone (323) cross section is triangular in shape, described permanent magnet blocks (33) is arranged in the draw-in groove (322) of rotor core (32), between adjacent two permanent magnet blocks (33), the position of corresponding convex cone (323) is formed with gap, it is characterized in that: described rotor structure (30) also comprises viscose glue and fixed mount (60), described viscose glue is filled in described gap, described fixed mount (60) comprises accommodates frame (61) and connection cover (62), the described frame (61) of accommodating comprises chassis (63) and is vertically arranged on chassis (63) periphery and the uniform some blend stops in interval (64), described in being arranged on, described rotor core (32) accommodates in frame (61), described blend stop (64) compresses the edge of the outer surface of the permanent magnet blocks (33) of both sides, described gap, described in described connection cover (62) is connected to, accommodate the one end on the relative chassis (63) of frame (61) and fix with described blend stop (64), described rotating shaft (31) two ends pass from described chassis (63) and connection cover (62) center respectively, on the surface of described rotor core (32), offer some magnetic fluxs hole (324), between phase vicinal magnetic flux hole (324), be formed with building block (423, 72) and with building block (423, 72) spaced walls (424 connecting, 71), building block (423, 72), spaced walls (424, 71) middle bisector overlaps with the bisector of described convex cone (323),
At the bottom of described magnetic flux hole (324) comprises hole, section (41) is pushed up section (42) with hole, section at the bottom of hole (41) is positioned at a side of contiguous centre bore (321), the side that section at the bottom of hole (41) has end arc wall (411) and is connected to end arc wall (411) two ends is stretched wall (412), the contiguous centre bore of end arc wall (411) (321), the arc direction of the arc direction of end arc wall (411) and centre bore (321) is opposing, the side that is connected to end arc wall (411) two ends is stretched wall (412) respectively along the radially outward Zhou Yanshen of rotor core (32), described hole top section (42) is " ∧ " shape, two contoured wall (422) that top, described hole section comprises corner point (421) and drawn by corner point (421), form accordingly a drift angle (α), described drift angle (α) span is 135 degree to 150 degree, the middle part of the contiguous draw-in groove of described corner point (421) (322) bottom, two contoured wall (422) connect respectively described side and stretch the extending end of wall (412), and stretch wall (412) with side and form joint angle (β), described joint angle (β) span is 120 degree to 135 degree, described blend stop (64) is semi-cylindrical, there is arcuate flanks (641), be pressed against the junction of adjacent permanent magnet piece (33), the centre of arcuate flanks (641) is extended with divider (647) vertically, and described divider (647) stretches in described gap,
Described blend stop (64) has flat sides set (642), described flat sides set (642) is formed with card holding structure (643) on surface, card holding structure (643) comprises guide pad (644) and grip block (645), described guide pad (644) is sphenoid, be arranged on the top side of blend stop (64), be used for guiding blend stop (64) Snap joint lid (62), described grip block (645) is rectangle block, be arranged on guide pad (644) below, between grip block (645) and guide pad (644), form holding tank (646),
The center on described chassis (63) offers the first sheathed hole (631), on described connection cover (62), offer the second axle sleeve hole (621) and some hole clippings (622), described some hole clippings (622) are opened in the periphery of contiguous connection cover (62), some hole clippings (622) are corresponding with the position of described blend stop (64), in order to cover and to accommodate after frame (61) at connection cover (62), described hole clipping (622) coordinates with the card holding structure (643) on described blend stop (64) top, connection cover (62) supports one end of rotor core (32), with described chassis (63) of accommodating frame (61), rotor core (32) two ends are clamped.
2. a brshless DC motor, comprise casing (10), stator structure (20), rotor structure (30), holder (40) and sleeve part (50), described stator structure (20) is set in casing (10), stator structure (20) has center mounting hole (21), described rotor structure (30) is set in center mounting hole (21), described holder (40) is fixedly mounted in casing (10), it coordinates sleeve part (50) that described rotor structure (30) is installed, it is characterized in that: the rotor structure (30) that described rotor structure (30) is motor claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450722.2A CN103475126B (en) | 2013-09-29 | 2013-09-29 | Rotor structure of motor and brushless DC motor with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310450722.2A CN103475126B (en) | 2013-09-29 | 2013-09-29 | Rotor structure of motor and brushless DC motor with same |
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| Publication Number | Publication Date |
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| CN103475126A CN103475126A (en) | 2013-12-25 |
| CN103475126B true CN103475126B (en) | 2014-12-10 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099027B (en) * | 2014-05-22 | 2018-02-09 | 台达电子工业股份有限公司 | Motor rotor and its locating ring |
| KR102589673B1 (en) * | 2016-06-13 | 2023-10-16 | 엘지이노텍 주식회사 | Rotor and motor having the same |
| KR102589672B1 (en) * | 2016-06-13 | 2023-10-16 | 엘지이노텍 주식회사 | Rotor and motor having the same |
| CN109691909A (en) * | 2017-10-23 | 2019-04-30 | 佛山市顺德区美的电热电器制造有限公司 | Disk, stirring toolbox and food cooking machine |
| CN109691906B (en) * | 2017-10-23 | 2022-05-10 | 佛山市顺德区美的电热电器制造有限公司 | Magnetic disc, stirring cutter assembly and food processor |
| CN109691908B (en) * | 2017-10-23 | 2022-04-22 | 佛山市顺德区美的电热电器制造有限公司 | Magnetic disc, stirring cutter assembly and food processor |
| CN109728664B (en) * | 2017-10-31 | 2020-07-03 | 大银微系统股份有限公司 | Motor rotor with protection mechanism |
| CN110115523A (en) * | 2018-02-06 | 2019-08-13 | 佛山市顺德区美的电热电器制造有限公司 | Interior DPU disk pack unit, stirring toolbox and food cooking machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000333394A (en) * | 1999-05-21 | 2000-11-30 | Matsushita Electric Ind Co Ltd | Permanent magnet rotor and apparatus employing it |
| WO2006008964A1 (en) * | 2004-07-16 | 2006-01-26 | Mitsuba Corporation | Magnet fixing structure for electric rotating machine |
| GB2468718A (en) * | 2009-03-20 | 2010-09-22 | Control Tech Dynamics Ltd | Securing permanent magnets to a laminated rotor |
| CN202535176U (en) * | 2012-05-23 | 2012-11-14 | 佛山市顺德区金泰德胜电机有限公司 | Permanent magnet rotor |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: The rotor structure of the motor and the brushless DC motor with this rotor structure Effective date of registration: 20231115 Granted publication date: 20141210 Pledgee: Jiangmen Rural Commercial Bank Co.,Ltd. Tangxia Branch Pledgor: JIANGMEN LT MOTOR Co.,Ltd. Registration number: Y2023980065772 |
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Address after: 529000 No. 79 Kaiyuan Road, Tangxia Town, Pengjiang District, Jiangmen City, Guangdong Province (multiple photos of one site) Patentee after: JIANGMEN LT MOTOR Co.,Ltd. Address before: No. 63 Xianghe Road, Chaolian Industrial Park, Jiangmen City, Guangdong Province, 529000 Patentee before: JIANGMEN LT MOTOR Co.,Ltd. |
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