CN204179773U - Eight groove micromachines and eight groove stator cores - Google Patents
Eight groove micromachines and eight groove stator cores Download PDFInfo
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- CN204179773U CN204179773U CN201420699349.4U CN201420699349U CN204179773U CN 204179773 U CN204179773 U CN 204179773U CN 201420699349 U CN201420699349 U CN 201420699349U CN 204179773 U CN204179773 U CN 204179773U
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Abstract
The utility model relates to a kind of eight groove micromachines and eight groove stator cores, and this eight grooves micromachine comprises stator module; Stator module comprises the stator core being evenly provided with eight stator slots; Stator slot orthographic projection planar graph comprises notch first line segment, groove takes on the first line segment, groove side first line segment, bottom land first line segment, gullet section, bottom land second line segment, groove side second line segment, groove take on the second line segment and notch second line segment; The width of rebate of stator slot is 2.0 ± 0.3 millimeters, the notch height of stator slot is 0.9 ± 0.3 millimeter, the height of stator slot is 0.20 ~ 0.30 times of frame bore, and the teeth portion width between adjacent two stator slots is 0.11 ~ 0.20 times of described frame bore.Enamelled wire can be directly once wound in each stator slot of stator core by spooling equipment by the utility model eight groove micromachine, has that production efficiency is high, quality better, qualification rate are high and low cost and other advantages, is a kind of energy-saving efficient motor.
Description
[
technical field]
The utility model relates to micromachine, particularly relates to the stator core of micromachine.
[
background technology]
Micromachine, single-phase capacitance formula motor as miniature in one is a kind of motor of extensive use in modern household electrical equipment.As shown in Figure 13 and Figure 14; stator core 11 ' employing multi-disc the stator punching of prior art miniature single-phase capacitance formula motor is stacking to be formed; this stator core 11 ' comprises central through hole 112 and equally distributed multiple stator slot 111 '; each stator winding is embedded in each stator slot 111 '; due to by the stator slot 111 ' shape of stator core 11 ' and the impact of size, the shortcoming such as cause that power input to machine is large, efficiency is low and output torque is little; And by the stator slot 111 ' shape of stator core 11 ' and the impact of size, after generally will being wound by each stator winding on coil winding machine, then be embedded in each stator slot 111 ' by each stator winding by machine or craft, production efficiency is low, and defective products rate is also high.
[
utility model content]
The technical problems to be solved in the utility model is avoid above-mentioned the deficiencies in the prior art part and provide a kind of eight groove micromachines and eight groove stator cores, directly once enamelled wire can be wound in each stator slot of stator core by spooling equipment, have that production efficiency is high, quality better, qualification rate are high and low cost and other advantages, have compared with the micromachine of equivalent specifications that noise is little, efficiency is high, power output is large and the advantage such as output torque is large, and saving stator enamelled wire, is a kind of energy-saving efficient motor.
The technical scheme that the utility model solve the technical problem employing is:
A kind of eight groove micromachines are provided, comprise stator module and rotor assembly; Described stator module comprises again the stator core being evenly provided with multiple stator slot, and is embedded in each stator winding in each stator slot of this stator core; Described rotor assembly comprises again the rotor core being evenly provided with multiple rotor; After assembling, between the outer surface of described rotor assembly and the central through hole of described stator core, form radial air gap; Described stator slot has eight; Described stator slot orthographic projection planar graph comprises notch first line segment, groove takes on the first line segment, groove side first line segment, bottom land first line segment, gullet section, bottom land second line segment, groove side second line segment, groove take on the second line segment and notch second line segment; Notch first line segment and notch second line segment form breach, and this breach is exactly the notch of described stator slot; The width of rebate of described stator slot is 2.0 ± 0.3 millimeters, the notch height of described stator slot is 0.9 ± 0.3 millimeter, the height of described stator slot is 0.20 ~ 0.30 times of described frame bore, and the teeth portion width between adjacent two stator slots is 0.11 ~ 0.20 times of described frame bore.
In described stator slot orthographic projection planar graph, the center of circle of described gullet section is in the center of described notch 118, and the radius of this gullet section is 0.22 ~ 0.26 times of described frame bore.
In described stator slot orthographic projection planar graph, described notch first line segment, groove take on the first line segment, groove side first line segment and bottom land first line segment respectively with described notch second line segment, that groove takes on the second line segment, groove side second line segment and bottom land second line segment is symmetrical, their common symmetry axis is the line of the center of circle of described gullet section and the mid point of this gullet section, and described bottom land first line segment and bottom land second line segment are connected with described gullet section is tangent respectively; Described bottom land first line segment or bottom land second line segment from the distance at each self-corresponding described stator core edge between 3.0 ~ 6.0 millimeters.
In described stator slot orthographic projection planar graph, described notch first line segment and groove are takeed on the joining that the joining of the first line segment and described notch second line segment and groove take on the second line segment and are all dropped on the first broken circle, this first broken circle is concentric with the central through hole of described stator core, and described first dotted line diameter of a circle equals the notch height sum of stator slot described in the internal diameter of described stator core and twice; Described groove is takeed on the joining that the joining of the first line segment and groove side first line segment and described groove take on the second line segment and groove side second line segment and is all dropped on the second broken circle, this the second dotted line fenestra is concentric with the central through hole of described stator core, larger than the internal diameter of described stator core 3 millimeters of described second dotted line diameter of a circle.
The internal diameter of described stator core is 35.0 ~ 44.9 millimeters, and the width of rebate of described stator slot is 1.9 ~ 2.1 millimeters, and the notch height of described stator slot is 0.7 ~ 1.0 millimeter.
Particularly, the internal diameter of described stator core is 44.0 millimeters, and the width of rebate of described stator slot is 2.0 millimeters, and the notch height of described stator slot is 0.8 millimeter, the height of described stator slot is 10.9 millimeters, and the teeth portion width between adjacent two stator slots is 6.5 millimeters.
Described rotor core is evenly provided with 22 rotor.
Described stator module also comprises stator first insulating frame and stator second insulating frame; Described stator first insulating frame comprise internal diameter slightly larger than or equal the first central through hole of described frame bore, and with each stator slot adaptation of described stator core, quantity is equal first to insulate tongue, each first insulation tongue is equipped with the first notch be connected with described first central through hole; Described stator second insulating frame also comprise internal diameter slightly larger than or equal the second central through hole of described frame bore, and with each stator slot adaptation of described stator core, quantity is equal second to insulate tongue, each second insulation tongue is equipped with the second notch be connected with described second central through hole; Each first insulation tongue of described stator first insulating frame and each second insulation tongue of stator second insulating frame embed docking mutually from the two ends of each stator slot of the correspondence of described stator core respectively, and described stator first insulating frame and stator second insulating frame separately end face are adjacent in the both ends of the surface of described stator core; Each stator winding of stator module is wound on each first insulation tongue of each stator slot being positioned at described stator core and each second insulation tongue.
Described stator first insulating frame periphery be provided with tongue direction of insulating with first contrary one enclose the first protruding and many positioning convex strips, respectively leave gap between this positioning convex strip and the first projection; Described stator second insulating frame periphery be also provided with tongue direction of insulating with second contrary one enclose second protruding.
Also provide a kind of eight groove stator cores, this stator core comprises central through hole and equally distributed multiple stator slot, and described stator slot has eight; Described stator slot orthographic projection planar graph comprises notch first line segment, groove takes on the first line segment, groove side first line segment, bottom land first line segment, gullet section, bottom land second line segment, groove side second line segment, groove take on the second line segment and notch second line segment; Notch first line segment and notch second line segment form breach, and this breach is exactly the notch of described stator slot; The width of rebate of described stator slot is 2.0 ± 0.3 millimeters, the notch height of described stator slot is 0.9 ± 0.3 millimeter, the height of described stator slot is 0.20 ~ 0.30 times of described frame bore, and the teeth portion width between adjacent two stator slots is 0.11 ~ 0.20 times of described frame bore.
Compared with the existing technology comparatively, the beneficial effect of the utility model eight groove micromachine and eight groove stator cores is:
One, stator core is designed to equally distributed eight stator slots; and particular design is done to each stator slot; directly once enamelled wire can be wound in each stator slot of stator core by spooling equipment; the utility model eight groove micromachine is had, and production efficiency is high, quality better, qualification rate are high and low cost and other advantages; having compared with the micromachine of equivalent specifications that noise is little, efficiency is high, power output is large and the advantage such as output torque is large, is a kind of energy-saving efficient motor;
Two, due to the insulation tank paper cracky in each stator slot of prior art stator core, and the fixing of each stator winding neither be fine; The utility model specially designs and is embedded into stator first insulating frame in each stator slot of stator core and stator second insulating frame; for replacing the insulation tank paper in each stator slot of prior art stator core; when such the utility model eight groove micromachine is in each stator slot once enamelled wire being wound on stator core with spooling equipment, stator first insulating frame and stator second insulating frame can not be damaged; And a circle first of stator first insulating frame periphery is protruding and many positioning convex strips, and circle second projection of stator second insulating frame periphery all to the spacing of each stator winding and can fixedly play good effect;
Three, the replaceable motor with cup rotor of the utility model eight groove micromachine, this eight grooves micromachine is larger than the power output of the motor with cup rotor of same specification and output torque is large, and cost is also lower than the motor with cup rotor of same specification.
In sum, enamelled wire can be directly once wound in each stator slot of stator core by spooling equipment by the utility model eight groove micromachine, have that production efficiency is high, quality better, qualification rate are high and low cost and other advantages, have compared with the micromachine of equivalent specifications that noise is little, efficiency is high, power output is large and the advantage such as output torque is large, and saving the enamelled wire that stator core is used, is a kind of energy-saving efficient motor.
[
accompanying drawing explanation]
Fig. 1 is the orthographic projection cross-sectional schematic of the preferred embodiment of the utility model eight groove micromachine;
Fig. 2 is the axonometric projection schematic diagram of the stator core preferred embodiment one of described eight groove micromachines;
Fig. 3 is the orthographic projection schematic front view of stator core shown in Fig. 2;
Fig. 4 is the axonometric projection schematic diagram of the stator core preferred embodiment two of described eight groove micromachines, and shown in this stator core with Fig. 2, the shape of the stator slot of stator core is identical with size, and only the face shaping structure of stator core is slightly different;
Fig. 5 is the orthographic projection schematic front view of stator core shown in Fig. 4;
Fig. 6 is the close-up schematic view of a upper right side part in stator core shown in Fig. 3;
Fig. 7 is the axonometric projection schematic diagram of the rotor assembly of described eight groove micromachines;
Fig. 8 is the orthographic projection schematic front view of the rotor core of described rotor assembly;
Fig. 9 is the axonometric projection schematic diagram of stator first insulating frame of described eight groove micromachines;
Figure 10 is the axonometric projection schematic diagram of described stator first insulating frame other direction;
Figure 11 is the axonometric projection schematic diagram of stator second insulating frame of described eight groove micromachines;
Figure 12 is the axonometric projection schematic diagram of described stator second insulating frame other direction;
Figure 13 is the axonometric projection schematic diagram of the stator core of prior art micromachine;
Figure 14 is the axonometric projection schematic diagram of the stator core of the micromachine of another specification of prior art.
[embodiment]
Below in conjunction with each accompanying drawing, the utility model is described in further detail.
See Fig. 1 to Figure 15, a kind of eight groove micromachines, comprise stator module 10 and rotor assembly 20; Described stator module 10 comprises again the stator core 11 being evenly provided with multiple stator slot 111, and is embedded in each stator winding (not shown) in each stator slot 111 of this stator core 11; Described rotor assembly 20 comprises again the rotor core 21 being evenly provided with multiple rotor 211; After assembling, between the outer surface of described rotor assembly 20 and the central through hole 112 of described stator core 11, form radial air gap; Described stator slot 111 has eight; Described stator slot 111 orthographic projection planar graph comprises notch first line segment AB, groove takes on the first line segment BC, groove side first line segment CD, bottom land first line segment DE, gullet section EF, bottom land second line segment FG, groove side second line segment GH, groove take on the second line segment HI and notch second line segment IJ; Notch first line segment AB and notch second line segment IJ forms breach, and this breach is exactly the notch 118 of described stator slot 111; The width of rebate b of described stator slot 111
0be 2.0 ± 0.3 millimeters, the particularly width of rebate b of described stator slot 111
0be 2.0 ± 0.1 millimeters, as described in the width of rebate b of stator slot 111
0it is 2.0 millimeters; The notch height h of described stator slot 111
0be 0.9 ± 0.3 millimeter, the particularly notch height h of described stator slot 111
0be 0.9 ± 0.2 millimeter, as described in the notch height h of stator slot 111
0it is 0.8 millimeter; The height h of described stator slot 111
s1described stator core 11 internal diameter D
10.20 ~ 0.30 times, the particularly height h of described stator slot 111
s1described stator core 11 internal diameter D
10.22 ~ 0.28 times, as described in the height h of stator slot 111
s1described stator core 11 internal diameter D
10.25 times; Teeth portion width b between adjacent two stator slots 111
tdescribed stator core 11 internal diameter D
10.11 ~ 0.20 times, the teeth portion width b particularly between adjacent two stator slots 111
tdescribed stator core 11 internal diameter D
10.12 ~ 0.17 times, as the teeth portion width b between adjacent two stator slots 111
tdescribed stator core 11 internal diameter D
10.15 times.
As shown in Figure 1, eight groove micromachines also comprise front end housing 30 and rear end cap 40; Stator module 10 is installed between this forward and backward end cap 30,40; Rotor assembly 20 is arranged on described forward and backward end cap 30,40 rotationally.Other each parts and assembly relation thereof of micromachine, be prior art, do not repeat them here.
See Fig. 2 to Fig. 6, in described stator slot 111 orthographic projection planar graph, the center of circle O of described gullet section EF in the center of described notch 118, the radius R of this gullet section EF
1described stator core 11 internal diameter D
10.22 ~ 0.26 times., the particularly radius R of described gullet section EF
1described stator core 11 internal diameter D
10.23 ~ 0.25 times, as described in the groover rot diameter D of stator slot 111
2described stator core 11 internal diameter D
10.24 times.Now, the height h of described stator slot 111
s1equal the radius R of gullet section EF
1add the notch height h of the stator slot 111 of 1/2nd
0, i.e. h
s1=R
1+ h
0÷ 2.
See Fig. 2 to Fig. 6, in described stator slot 111 orthographic projection planar graph, described notch first line segment AB, groove take on the first line segment BC, groove side first line segment CD and bottom land first line segment DE respectively with described notch second line segment IJ, that groove takes on the second line segment HI, groove side second line segment GH and bottom land second line segment FG is symmetrical, their common symmetry axis is the line O O ' of the center of circle O of described gullet section EF and the mid point O ' of this gullet section EF, and described bottom land first line segment DE and bottom land second line segment FG is connected with described gullet section EF is tangent respectively; Described bottom land first line segment DE or bottom land second line segment FG is from the distance T at each self-corresponding described stator core 11 edge
1between 3.0 ~ 6.0 millimeters, particularly described bottom land first line segment DE or bottom land second line segment FG is from the distance T at each self-corresponding described stator core 11 edge
1between 3.5 ~ 5.5 millimeters, as described in bottom land first line segment DE or bottom land second line segment FG from each self-corresponding as described in the distance T at stator core 11 edge
1it is 4.3 millimeters.
See Fig. 2 to Fig. 6, in described stator slot 111 orthographic projection planar graph, described notch first line segment AB and groove are takeed on the joining that the joining of the first line segment BC and described notch second line segment IJ and groove take on the second line segment HI and are all dropped on the first broken circle 116, this first broken circle 116 is concentric with the central through hole 112 of described stator core 11, the diameter D of described first broken circle 116
2equal the internal diameter D of described stator core 11
1with the notch height h of stator slot described in twice 111
0sum, i.e. D
2=D
1+ 2*h
0; Described groove is takeed on the joining that the joining of the first line segment BC and groove side first line segment CD and described groove take on the second line segment HI and groove side second line segment GH and is all dropped on the second broken circle 117, this second broken circle 117 is also concentric with the central through hole 112 of described stator core 11, the diameter D of described second broken circle 117
3than the internal diameter D of described stator core 11
1large 3 millimeters, i.e. D
3=D
1+ 3 millimeters.
During in order to punching press, stamping die is extracted out smoothly, and stator slot 111 is attractive in appearance, see Fig. 2 to Fig. 6, in described stator slot 111 orthographic projection planar graph, notch first line segment AB and groove are takeed on the most handy one section of small arc-shaped between the first line segment BC and are connected, groove is takeed on the first line segment BC and is connected with the most handy one section of small arc-shaped of groove side first line segment CD, groove side first line segment CD is connected with the most handy one section of small arc-shaped of bottom land first line segment DE, bottom land second line segment FG is connected with the most handy one section of small arc-shaped of groove side second line segment GH, groove side second line segment GH and groove are takeed on the most handy one section of small arc-shaped between the second line segment HI and are connected, groove is takeed between the second line segment HI with notch second line segment IJ and is preferably also connected with one section of small arc-shaped, each small arc-shaped radius can be 0.3 millimeter.
Label L in Fig. 3 and Fig. 5
1for the length of stator core 11, label W
1for the width of stator core 11; Label D
4for the diameter of the circular arc of four arc chord angles of stator core 11.
See Fig. 3, Fig. 5 and Fig. 6, the internal diameter D of described stator core 11
1be 35.0 ~ 44.9 millimeters, the width of rebate b of described stator slot 111
0be 1.9 ~ 2.1 millimeters, the notch height h of described stator slot 111
0it is 0.7 ~ 1.0 millimeter.
Particularly, see Fig. 3, Fig. 5 and Fig. 6, the internal diameter D of described stator core 11
1be 44.0 millimeters, the width of rebate b of described stator slot 111
0be 2.0 millimeters, the notch height h of described stator slot 111
0be 0.8 millimeter, the height h of described stator slot 111
s1be 10.9 millimeters, the teeth portion width b between adjacent two stator slots 111
tit is 6.5 millimeters.Accordingly, can by the length L of the stator core 11 in Fig. 3, Fig. 5 and Fig. 6
1be designed to 71.0 ± 0.5 millimeters, the width W of stator core 11
1also 71.0 ± 0.5 millimeters are designed to, the radius R of the gullet section EF of each stator slot 111 of stator core 11
1be designed to φ 10.5 millimeters, bottom land first line segment DE or bottom land second line segment FG is from the distance T at each self-corresponding described stator core 11 edge
1be 4.25 millimeters, the diameter D of the first broken circle 116
2be designed to φ 45.6 millimeters, the diameter D of the second broken circle 117
3be designed to φ 47.0 millimeters, D
4be designed to φ 80.0 ± 0.5 millimeters.
See Fig. 8, described rotor core 21 is evenly provided with 22 rotor 211.See Fig. 7, described rotor assembly 20 adopts die casting aluminium technique to make, and in Fig. 7, label 22 is armature spindle.
See Fig. 1 and Fig. 9 to Figure 12, described stator module 10 also comprises stator first insulating frame 13 and stator second insulating frame 14; Described stator first insulating frame 13 comprise internal diameter slightly larger than or equal the first central through hole 131 of described stator core 11 internal diameter, and with each stator slot 111 adaptation of described stator core 11, quantity is equal first to insulate tongue 132, each first insulation tongue 132 is equipped with the first notch 1321 be connected with described first central through hole 131; Described stator second insulating frame 14 also comprise internal diameter slightly larger than or equal the second central through hole 141 of described stator core 11 internal diameter, and with each stator slot 111 adaptation of described stator core 11, quantity is equal second to insulate tongue 142, each second insulation tongue 142 is equipped with the second notch 1421 be connected with described second central through hole 141; Each first insulation tongue 132 of described stator first insulating frame 13 and each second insulation tongue 142 of stator second insulating frame 14 embed docking mutually from the two ends of each stator slot 111 of the correspondence of described stator core 11 respectively, and described stator first insulating frame 13 and the respective end face of stator second insulating frame 14 are adjacent in the both ends of the surface of described stator core 11; Each stator winding (not shown) of stator module 10 is wound on each first insulation tongue 132 of each stator slot 111 being positioned at described stator core 11 and each second insulation tongue 142.
See Fig. 1 and Fig. 9 to Figure 12, described stator first insulating frame 13 periphery be provided with tongue 132 direction of insulating with first contrary one enclose first protruding 133 and Duo Gen positioning convex strip 134, respectively leave gap 135 between this positioning convex strip 134 and first projection 133; Described stator second insulating frame 14 periphery be also provided with tongue 142 direction of insulating with second contrary one enclose the second projection 143.The outside of each like this stator winding just can be limited by a circle second protruding 143 of a circle first protruding 133 of described stator first insulating frame 13 and stator second insulating frame 14; And the intercoil connection of each coil of stator winding may be stuck in gap 135 place between first protruding 133 of stator first insulating frame 13 and each positioning convex strip 134.
See Fig. 1 and Fig. 9 to Figure 12, the first central through hole 131 edge of described stator first insulating frame 13 is outwards provided with protruding 133 equidirectional many places the 3rd projections 136 with described first; First central through hole 141 edge of described stator second insulating frame 14 is outwards provided with protruding 143 equidirectional many places the 4th projections 146 with described second.The inner ring of each like this stator winding just can be limited by the 4th protruding 146 of the 3rd of described stator first insulating frame 13 protruding 136 and stator second insulating frame 14.
The above embodiment only have expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model; Therefore, all equivalents of doing with the utility model right and modification, all should belong to the covering scope of the utility model claim.
Claims (10)
1. eight groove micromachines, comprise stator module (10) and rotor assembly (20); Described stator module (10) comprises again the stator core (11) being evenly provided with multiple stator slot (111), and is embedded in each stator winding in each stator slot (111) of this stator core (11); Described rotor assembly (20) comprises again the rotor core (21) being evenly provided with multiple rotor (211); After assembling, between the outer surface of described rotor assembly (20) and the central through hole (112) of described stator core (11), form radial air gap; It is characterized in that:
Described stator slot (111) has eight; Described stator slot (111) orthographic projection planar graph comprises notch first line segment (AB), groove takes on the first line segment (BC), groove side first line segment (CD), bottom land first line segment (DE), gullet section (EF), bottom land second line segment (FG), groove side second line segment (GH), groove take on the second line segment (HI) and notch second line segment (IJ); Notch first line segment (AB) and notch second line segment (IJ) form breach, and this breach is exactly the notch (118) of described stator slot (111); Width of rebate (the b of described stator slot (111)
0) be 2.0 ± 0.3 millimeters, the notch height (h of described stator slot (111)
0) be 0.9 ± 0.3 millimeter, the height (h of described stator slot (111)
s1) be described stator core (11) internal diameter (D
1) 0.20 ~ 0.30 times, the teeth portion width (b between adjacent two stator slots (111)
t) be described stator core (11) internal diameter (D
1) 0.11 ~ 0.20 times.
2. eight groove micromachines according to claim 1, is characterized in that:
In described stator slot (111) orthographic projection planar graph, the center of circle (O) of described gullet section (EF) in the center of described notch (118), the radius (R of this gullet section (EF)
1) be described stator core (11) internal diameter (D
1) 0.22 ~ 0.26 times.
3. eight groove micromachines according to claim 2, is characterized in that:
In described stator slot (111) orthographic projection planar graph, described notch first line segment (AB), groove takes on the first line segment (BC), groove side first line segment (CD) and bottom land first line segment (DE) respectively with described notch second line segment (IJ), groove takes on the second line segment (HI), groove side second line segment (GH) and bottom land second line segment (FG) symmetrical, their common symmetry axis is the line (O O ') of the center of circle (O) of described gullet section (EF) and the mid point (O ') of this gullet section (EF), and described bottom land first line segment (DE) and bottom land second line segment (FG) are connected with described gullet section (EF) is tangent respectively, described bottom land first line segment (DE) or bottom land second line segment (FG) are from the distance (T at each self-corresponding described stator core (11) edge
1) between 3.0 ~ 6.0 millimeters.
4. eight groove micromachines according to claim 3, is characterized in that:
In described stator slot (111) orthographic projection planar graph, described notch first line segment (AB) and groove are takeed on the joining that the joining of the first line segment (BC) and described notch second line segment (IJ) and groove take on the second line segment (HI) and are all dropped on the first broken circle (116), this first broken circle (116) is concentric with the central through hole (112) of described stator core (11), the diameter (D of described first broken circle (116)
2) equal the internal diameter (D of described stator core (11)
1) with the notch height (h of stator slot (111) described in twice
0) sum; Described groove is takeed on the joining that the joining of the first line segment (BC) and groove side first line segment (CD) and described groove take on the second line segment (HI) and groove side second line segment (GH) and is all dropped on the second broken circle (117), this second broken circle (117) is also concentric with the central through hole (112) of described stator core (11), the diameter (D of described second broken circle (117)
3) than the internal diameter (D of described stator core (11)
1) large 3 millimeters.
5. eight groove micromachines according to claim 4, is characterized in that:
Internal diameter (the D of described stator core (11)
1) be 35.0 ~ 44.9 millimeters, the width of rebate (b of described stator slot (111)
0) be 1.9 ~ 2.1 millimeters, the notch height (h of described stator slot (111)
0) be 0.7 ~ 1.0 millimeter.
6. eight groove micromachines according to claim 5, is characterized in that:
Internal diameter (the D of described stator core (11)
1) be 44.0 millimeters, the width of rebate (b of described stator slot (111)
0) be 2.0 millimeters, the notch height (h of described stator slot (111)
0) be 0.8 millimeter, the height (h of described stator slot (111)
s1) be 10.9 millimeters, the teeth portion width (b between adjacent two stator slots (111)
t) be 6.5 millimeters.
7. eight groove micromachines according to claim 1, is characterized in that:
Described rotor core (21) is evenly provided with 22 rotor (211).
8. eight groove micromachines according to any one of claim 1 to 7, is characterized in that:
Described stator module (10) also comprises stator first insulating frame (13) and stator second insulating frame (14); Described stator first insulating frame (13) comprise internal diameter slightly larger than or equal first central through hole (131) of described stator core (11) internal diameter, and with each stator slot (111) of described stator core (11) adaptive, quantity is equal first insulate tongue (132), each first tongue (132) that insulate is equipped with the first notch (1321) be connected with described first central through hole (131); Described stator second insulating frame (14) also comprise internal diameter slightly larger than or equal second central through hole (141) of described stator core (11) internal diameter, and with each stator slot (111) of described stator core (11) adaptive, quantity is equal second insulate tongue (142), each second tongue (142) that insulate is equipped with the second notch (1421) be connected with described second central through hole (141); Each first insulation tongue (132) of described stator first insulating frame (13) and each second insulation tongue (142) of stator second insulating frame (14) embed docking mutually from the two ends of each stator slot (111) of the correspondence of described stator core (11) respectively, and described stator first insulating frame (13) and stator second insulating frame (14) separately end face are adjacent in the both ends of the surface of described stator core (11); Each stator winding of stator module (10) is wound on each first insulation tongue (132) of each stator slot (111) being positioned at described stator core (11) and each second insulation tongue (142).
9. eight groove micromachines according to claim 8, is characterized in that:
Described stator first insulating frame (13) periphery be provided with tongue (132) direction of insulating with first contrary one enclose the first projection (133) and many positioning convex strips (134), respectively leave gap (135) between this positioning convex strip (134) and the first projection (133); Described stator second insulating frame (14) periphery be also provided with tongue (142) direction of insulating with second contrary one enclose the second projection (143).
10. a groove stator core (11), this stator core (11) comprises central through hole (112) and equally distributed multiple stator slot (111), it is characterized in that:
Described stator slot (111) has eight; Described stator slot (111) orthographic projection planar graph comprises notch first line segment (AB), groove takes on the first line segment (BC), groove side first line segment (CD), bottom land first line segment (DE), gullet section (EF), bottom land second line segment (FG), groove side second line segment (GH), groove take on the second line segment (HI) and notch second line segment (IJ); Notch first line segment (AB) and notch second line segment (IJ) form breach, and this breach is exactly the notch (118) of described stator slot (111); Width of rebate (the b of described stator slot (111)
0) be 2.0 ± 0.3 millimeters, the notch height (h of described stator slot (111)
0) be 0.9 ± 0.3 millimeter, the height (h of described stator slot (111)
s1) be described stator core (11) internal diameter (D
1) 0.20 ~ 0.30 times, the teeth portion width (b between adjacent two stator slots (111)
t) be described stator core (11) internal diameter (D
1) 0.11 ~ 0.20 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699349.4U CN204179773U (en) | 2014-11-20 | 2014-11-20 | Eight groove micromachines and eight groove stator cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699349.4U CN204179773U (en) | 2014-11-20 | 2014-11-20 | Eight groove micromachines and eight groove stator cores |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245339A (en) * | 2017-07-11 | 2019-01-18 | 上海鸣志电器股份有限公司 | A kind of step motor stator and the motor with the stator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245339A (en) * | 2017-07-11 | 2019-01-18 | 上海鸣志电器股份有限公司 | A kind of step motor stator and the motor with the stator |
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