CN1038289C - Linear motor - Google Patents
Linear motor Download PDFInfo
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- CN1038289C CN1038289C CN94115381A CN94115381A CN1038289C CN 1038289 C CN1038289 C CN 1038289C CN 94115381 A CN94115381 A CN 94115381A CN 94115381 A CN94115381 A CN 94115381A CN 1038289 C CN1038289 C CN 1038289C
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- mover
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- 238000004804 winding Methods 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 230000002093 peripheral effect Effects 0.000 claims description 35
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 230000027311 M phase Effects 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 19
- 238000005755 formation reaction Methods 0.000 description 17
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The present invention relates to a linear motor used as an m-value linear pulse motor with high thrust output or a direct-current linear motor without electric brushes. The linear motor is composed of a stator 1 and a mover 3 which freely moves in the axial direction, wherein the stator 1 is provided with even N convex poles 11, 12,... arranged in identical inclination angles. A plurality of permanent magnetic poles provided with different polarity are alternately arranged on the inner circumferential surfaces of the convex poles in the axial direction. The convex poles are composed of m groups of N/m convex pole teams by which a plurality of pairs of adjacent convex poles are arranged in a degree of 720 m/N; windings W1, W2,... with (N/m-1) or (N/m-2) convex poles in a plurality of convex pole teams are connected among paired convex poles in opposite polarity, and the convex poles clamping the convex pole arrangement of other unpaired phases are connected in identical polarity to form an m-phase winding. The rest convex poles in the convex pole teams are used as sensing poles SA and SB used for detecting the position and the moving direction of the mover 3.
Description
The present invention relates to linear motor, particularly as the linear motor of two-phase and polyphase linear impulse motor or the linear motor operations of brushless direct current.
Figure 11 illustrates the longitudinal section of the cylindric linear motor of permanent-magnet type related to the present invention.
In Figure 11, the stator core 101 of the cylindric linear motor stator 100 of above-mentioned permanent-magnet type is to form the little internal diameter ring-type yoke of ring-type stator tooth end 102a, alternately laminated vertically with the ring-type yoke of the large diameter that forms ring-type stator tooth bottom 102b, thus on the inner peripheral surface of said stator iron core 101 vertically to wait tooth pitch to form a plurality of little teeth 102 of stator that constitute by ring tooth end 102a and ring tooth bottom (slot part) 102b.
Each ring-shaped winding 103,104 ... 110 are provided in above-mentioned ring tooth bottom (slot part) 102b.These ring-shaped winding 103,104 ... 110 as shown in figure 12, ring-shaped winding 103,105,107,109 alternately reversed polarity is connected to form a phase (A phase), ring-shaped winding 104,106,108,110 equally alternately reversed polarity is connected to form another phase (B phase), whole formation two-phase.Said stator 100 is because such structure, the pole span of stator 100 are arranged is four times of tooth pitch of the little tooth 102 of stator.
The mover core 301 of mover 300 has drum, become the permanent-magnet pole 302 of opposed polarity along radial direction, spacing with two times of the tooth pitches of the little tooth 102 of stator, alternately be provided on its outer peripheral face vertically, the result, the pole span of mover 300 becomes four times of tooth pitch of the little tooth of stator, and is consistent with the pole span of said stator 100.
Since be configured in the stator core 101 above-mentioned two-phase winding each other, the little tooth tooth pitch of the stator that staggers vertically is 1/4 of a stator poles distance, and the basic amount of movement that above-mentioned linear motor becomes each stepping is the cylindric straight pulse motor of two-phase permanent magnet type of the little tooth tooth pitch of stator for 1/4 of this pole span.
Yet, the cylindric straight pulse motor of the permanent-magnet type of said structure, for connecting each Circular Winding 103,104 ... 110, peripheral part at above-mentioned magnetic end 102a and tooth bottom each ring-type yoke of 102b will be provided with notch, from here with above-mentioned each winding 103,104 ... draw 110 end, also they will be linked and exist the lead that is positioned at above-mentioned notch draw slot part.This just produces the bad problem of operation of this motor assembling.
Receive and keep above-mentioned winding 103,104 ... the size with tooth bottom 102b of the little tooth 102 of 110 stator depends on the tooth pitch of the little tooth of stator, and when this little tooth tooth pitch hour, above-mentioned tooth bottom 120b can not be big, because the ampere-conductors of every phase can not be got greatly, thereby the low problem of thrust is arranged.
Said motor is because permanent-magnet pole is configured in the mover side, and the length of this motor just need be more than (mover core axial length+length of stroke), so have this length of stroke that will extend, the problem that the length of motor will be elongated.
Said motor is a permanent-magnet type, in principle can be as brushless DC motor work, thereby the sensor device that detects rotor position just need be set in addition, so also there is the elongated problem of motor length that makes.
In view of the above problems, the purpose of this invention is to provide a kind of can addressing the above problem, the operation of the operation of winding and motor assembling is all good, and can irrespectively increase with the little tooth tooth pitch of stator and deposit the winding part, just can realize high thrust with small-sized, permanent-magnet pole is configured in the permanent-magnet type linear motor of stator side.
Another purpose of the present invention provides a kind of sensing device of additional detected rotor position in addition, can cheap form lienar servomechanism and can be as the permanent-magnet type linear motor of brushless DC motor work.
Linear motor is equipped with stator and mover, said stator have with etc. the inclination angle be radial configuration to the inside and the stator core of even number salient pole arranged and be wrapped in winding on above-mentioned many salient poles respectively, said mover is removable vertically to be bearing in this stator freely, the mover core of the little teeth of a plurality of movers has been arranged simultaneously in its outer peripheral face upper edge axial arrangement, for achieving the above object, structure of the present invention has following described feature.
1. by so that alternately opposed polarity is on the inner peripheral surface of a plurality of permanent-magnet poles by the above-mentioned salient pole that equidistantly is configured in the said stator iron core that radial direction magnetizes vertically, simultaneously the little tooth of above-mentioned mover is with the distance configuration of the disposition interval that doubles above-mentioned permanent-magnet pole; Above-mentioned mover core is that stacked of power iron plate with the above-mentioned mover core of regulation number is used as the mover core unit, only to decide angle by the little tooth row row that are configured in above-mentioned mover iron plate peripheral part, rotates this unit in turn and carries out stacked formation; The said stator salient pole when its salient pole number is N, when the number of phases of said motor is m, is made of m group salient pole group, and said salient pole group is pressed N/m salient pole of the angle configurations of impartial 720m/N degree and formed by paired per two salient poles of mutual vicinity; Be wrapped in (N/m-1) that belong to above-mentioned many salient poles group individual or (N/m-2) winding on the individual salient pole respectively, polarity connects on the contrary between above-mentioned right salient pole constituting, clip do not constitute the above-mentioned right salient pole that belongs to other salient pole group to and relative salient pole between, polarity connects in the same manner, constitutes the phase winding of m phase; The irrelevant remaining salient pole of mutually formation detects the axial location and the moving direction of mover as sensing electrode among heterogeneous and the above-mentioned salient pole group, can make it to perform the linear motor operations of m phase straight pulse motor or brushless direct current.
2. said stator iron core, as number of phases m is 2, k is during greater than 1 integer, 8k salient pole arranged, the little tooth group who has the k group to form simultaneously by two little teeth that become (135/k) degree angle to be configured in above-mentioned mover iron plate peripheral part, above-mentioned how little tooth faciation is mutually the angle configurations of (360/k) degree, above-mentioned power iron core is above-mentioned mover core sequence of unit to be rotated (135/K) end one by one carry out stacked formation, when the axial width of above-mentioned mover core unit was t, the disposition interval that is configured in the permanent-magnet pole on the said stator iron core was 4t.
3. said stator iron core, as number of phases m is 3, k is during greater than 1 integer, 12k salient pole arranged, the little tooth group who has the k group to form simultaneously by two little teeth that become (150/k) degree to be arranged on the peripheral part of above-mentioned mover iron plate, above-mentioned how little tooth faciation is mutually the configuration of (360/k) degree, above-mentioned mover core is above-mentioned mover core sequence of unit to be rotated (150/k) degree one by one carry out stacked formation, when the axial metal of above-mentioned mover core unit was t, the disposition interval that is configured in the permanent magnetic plate on the said stator iron core was 6t.
About effect of the present invention, the permanent magnet linear of above-mentioned this spline structure, because stator winding is arranged on the stator circumference direction with the form that is wrapped on many salient poles, so good work of winding, and the little tooth tooth pitch of the increasing of winding storage portion and stator is irrelevant, ampere-conductors can be increased, the linear motor of high thrust can be realized.
Because permanent-magnet pole is arranged on stator side, so the length of the said motor that can need not extend realizes long strokeization.
And owing to a part of stator salient poles can be used the sensing salient pole of detection rotor position, moving direction, so encoder in the past must be set in addition, position detection meanss such as analytical equipment just can be as the linear motor operations of brushless direct current.
Fig. 1 is the longitudinal section of an embodiment of expression linear motor of the present invention.
Fig. 2 is the partial enlarged drawing of the stator core of Fig. 1.
Fig. 3 is the sectional elevation that the III-III line along Fig. 1 dissects.
Fig. 4 is the plane graph that constitutes the mover iron plate of mover core.
Fig. 5 is from stator side, and the mover iron plate of Fig. 4 is rotated the expanded view that predetermined angular carries out the little tooth of the mover portion that forms when stacked.
Fig. 6 is the winding diagram of stator winding.
Fig. 7 is the sectional elevation of another embodiment of expression curve motor of the present invention.
Fig. 8 is the plane graph that constitutes the mover iron plate of mover core.
Fig. 9 is from stator side, and the mover iron plate of Fig. 8 is rotated the spread figure that predetermined angular carries out the little tooth of the mover portion of stacked formation.
Figure 10 is the winding diagram of stator winding.
Figure 11 is the longitudinal section of the cylindric linear motor of permanent-magnet type of prior art.
Figure 12 is the winding diagram of the stator core of Figure 11.
To be elaborated to the most preferred embodiment of the present invention that is exemplified with reference to the accompanying drawings below.
Fig. 1 is the longitudinal section of an embodiment of expression linear motor of the present invention, and Fig. 2 is the partial enlarged drawing of the stator core of Fig. 1, and Fig. 3 is the sectional elevation that the III-III line from Fig. 1 dissects.
Present embodiment is represented number of phases m=2, the situation of integer k=1, thereby salient stator number of poles N=8k=8.
In Fig. 1-Fig. 3, stator 1 is by stator core 10 and stator winding W
1, W
2, W
3W
8Form.Along a plurality of permanent-magnet poles 19 of inner circumferential surface vertically with equidistantly be configured in to stator core 10 inboards with etc. the inclination angle be on the even number salient pole of radial setting, at present embodiment is to be configured in 8 salient poles 11,12,12 ... on 18, the polarity of the inner peripheral surface of this permanent-magnet pole 19 is alternately to magnetize into the N utmost point and the S utmost point along radial direction.
Be arranged on each salient pole 11,12,12 ... above-mentioned permanent-magnet pole 19 on 18 the inner peripheral surface is configured to identical polar in axial same position, and these 8 permanent-magnet poles 19 that are arranged on the above-mentioned axial same position form the toroidal of disconnection because of peristome between salient pole is arranged.
Its stator winding W
1, W
2, W
3W
8Be wrapped in above-mentioned these 8 salient poles 11,12,13 respectively ... said stator on 18 unshakable in one's determination 10 is by harvesting such as the bolt do not drawn among framework 21,22 and the figure and be bearing in the shell 20.
Mover 3 in stator 1 by framework 21,22, supports and can move freely vertically by bearing 23,24.Along this direction of 39 little tooth 40 (the tooth ends 40a of a plurality of movers are arranged, tooth bottom 40b) is formed on mover core 30 and above-mentioned 8 salient poles 11 of above-mentioned mover 3 with the spacing of the configuration distance that doubles above-mentioned permanent- magnet pole 19,12,13 ... 18 each relative peripheral part 31,32,33 ... on 38, nonmagnetic substance 41 is filled in this tooth bottom 40b, and the outer peripheral face of above-mentioned mover core 30 is processed into simple barrel surface.
Fig. 4 illustrates an example of the mover iron plate 42 that constitutes above-mentioned mover core 30.43,44 two little teeth that are arranged on the peripheral part of mover iron plate 42 in Fig. 4 form and are in the 135/k degree, be i.e. one group little tooth groups of the angle configurations of 135 degree (k=1).Present embodiment is k=1, it promptly is the situation of one group little tooth 43,44, and when k=2 for example, then by two groups by becoming the i.e. little tooth group that forms of two little teeth of the angle configurations of 67.5 degree of 135/k degree, these two groups little tooth faciations are mutually the 360/k degree and promptly 180 spend and be arranged on peripheral direction.
Fig. 5 is a peripheral part 31 of seeing mover core 30 from stator side, 32,33 ... the situation of the little tooth of mover on 38, the little tooth 40 of these movers is that above-mentioned mover iron plate 42 formations of stacked regulation plate number are folded thick in behind the mover core unit 45 of t, with mover core unit 45 each 135/k degree that rotate, during k=1 be 135 ° and carry out stacked formation again.Have dashed area to represent tooth ends 40a, the shadow-free line is partly represented tooth bottom 40b.By rotating stacked above-mentioned mover core unit 45 in turn, at each peripheral part 31,32,33 ... forming tooth pitch on 38 is the little tooth 40 of 8t (transverse tooth thickness 2t, the thickness 6t at the bottom of the tooth).Thereby make permanent-magnet pole 19 spacings that are arranged on the said stator iron core 10 become 4t (the little tooth tooth pitch of mover 1/2).
And, as can be seen from Figure 5, when being benchmark with peripheral part 31, the skew of the little tooth 40 of each peripheral part is respectively tooth pitch: at peripheral part 32 is 3/8, peripheral part 33 is 6/8, peripheral part 34 is 9/8 (promptly 1/8), periphery 35 is 4/8, and peripheral part 36 is 7/8, and peripheral part 37 is 10/8 (promptly 2/8), peripheral part 38 is 5/8, and the little tooth of adjacent peripheral part is mutually with 3/8 offset configuration of tooth pitch.
In Fig. 3, each paired two salient pole 11 that are close to mutually, 12 and 15,16 formations are m=2 with 730 m/N degree, the N/m 4 that during N=8k=8 is the even configurations of 180 degree is one group salient pole group, while salient pole 13,14 and 17,18 other four of constituting identical configuration relation are one group salient pole group, and m=2 group salient pole group is arranged on the whole.
As shown in Figure 6, be wrapped on individual i.e. 3 salient poles of (N/m-1) in per 4 the above-mentioned salient poles that constitute above-mentioned each salient pole group, just be wrapped in salient pole 11,12,16 and salient pole 13,14,17 on each winding W
1W
2。W
6And W
3, W
4, W
7, image pattern show be connected to form like that A mutually and B mutually, thereby formation two-phase motor.
Each A, the formation of B phase winding as shown in Figure 6, with the winding W that is wrapped on the adjacent paired salient pole 11,12
1, W
2Mutually polarity connects on the contrary, will be wrapped in the winding W that accompanies on the salient pole 11,16 that another phase salient pole 17,18 disposes like that therebetween
1, W
6Connect to same polarity as A phase, same, with the winding W that is wrapped on the adjacent paired salient pole 13,14
3, W
4Mutually polarity connects on the contrary, with the winding W that is wrapped on the salient pole 14,17 that the salient pole 15,16 that accompanies another phase therebetween disposes like that
4, W
7Connect to same polarity as B phase.
With irrelevant salient pole 15,18 and the winding W thereof of formation mutually among the above-mentioned salient pole group
5, W
8Constitute sensing utmost point S respectively
A, S
B
Owing to be to constitute like this, so each salient pole of above-mentioned salient pole group is to 11,12; 15,16; 13,14; 17,18 have this spline structure, promptly form closed magnetic circuit when being energized respectively, and many closed magnetic circuits do not have public magnetic circuit part.
This sensing utmost point S
A, S
BHigh-frequency generator excitation with not providing among the figure can detect according to little tooth of mover and sensing utmost point S
A, S
BThe position relation of permanent-magnet pole 19 and the inductance that changes.That is to say, at sensing utmost point S
A, S
BPermanent-magnet pole 19 inductance maximum when relative with the tooth ends 40a of the little tooth 40 of mover, at sensing utmost point S
A, S
BPermanent-magnet pole 19 and the tooth of the little tooth 40 of mover bottom 40b be in relative inductance minimum when position, a space is arranged.The little tooth 40 of above-mentioned mover is owing to phase deviation vertically as described above, and the result can produce the rotor position signal of 90 degree electrical degree phase deviations.
Therefore, utilize structure as described above, so the two-phase permanent magnet type straight pulse motor cylindraceous of holding position transducer in constituting.1/4 of the tooth pitch of the little tooth 40 of mover of the basic amount of movement of at this moment each stepping, i.e. 2t (and t is the folded thick of mover core unit 45).Because interior dress can detect the position of mover 3 and the sensing utmost point S of moving direction
A, S
BSo, also can work as the brushless dc servomotor.
Fig. 7-Figure 11 illustrates other embodiment of linear motor of the present invention, and Fig. 7 is the sectional elevation the same with Fig. 3 in the foregoing description.
Present embodiment illustrates number of phases m=3, integer k=1 o'clock, thereby salient stator number of poles N becomes N=12k=12.Except that following explanation, all the other are all same as the previously described embodiments in the present embodiment.
In Fig. 7, within it on the side face vertically a plurality of permanent-magnet poles 63 be set in qually spaced in etc. the inclination angle be 12 salient poles 51 of radial configuration to the inboard of stator core 50,52,53 ... on 62, make the polarity of these permanent-magnet pole 63 inner peripheral surfaces alternately magnetize into the N utmost point and the S utmost point along radial direction.Stator winding W
51, W
52, W
53W
62Be wrapped in this 12 salient poles 51,52,53 respectively ... on each of 62.
Fig. 8 illustrates an example of the mover iron plate 71 that constitutes mover core 70.In Fig. 8,72,73 two of being arranged on mover iron plate 71 peripheral parts go up tooth, constitute to be in the i.e. one group little tooth group of 150 degree (k=1) angle configurations of 150/k degree.Present embodiment is that k=1 is that above-mentioned little tooth 72,73 is one group a situation, and when k=2 for example, exist two groups by become the 150/k degree promptly two little tooth faciations of 75 degree configurations be mutually the 360/k degree promptly 180 degree be formed on peripheral direction.
Fig. 9 sees the peripheral part 81 that is positioned at mover core 70 from stator 1 side, 82,83 ... the situation of the little tooth 80 of the mover on 92, said mover core 70 is the above-mentioned mover iron plate 71 stacked stacked thick mover core unit 74 of t that are with regulation iron plate number, is that 150 degree carry out stacked formation with these mover core unit 74 each rotations when the 150/k degree is k=1 again.Have dashed area to represent tooth ends 80a, the shadow-free line is partly represented tooth bottom 80b.By rotating stacked above-mentioned mover core unit 74 in turn, at each peripheral part 81,82,83 ... forming tooth pitch on 92 is the little tooth of 12t (transverse tooth thickness 2t, tooth base thickness degree is 10t).Thereby the pole span that is configured in the permanent-magnet pole 63 on the said stator iron core 50 is 6t (the little tooth tooth pitch of mover 1/2).
Adjacent each paired two salient pole 51 in Fig. 7,52 and 57,58 is m=3 with the 720m/N degree, is the evenly configurations of 180 degree during N=12k=12, constitute with N/m promptly 4 be one group salient pole group, while salient pole 53,54 utmost points 60 and salient pole 55,56 and 61,62 dispose too, each four that constitute other is one group salient pole group, total m=3 group salient pole group.
As shown in figure 10, be wrapped in each winding W on (N/m-1) individual i.e. each three salient pole 51,52,57 and 55,56,61 and 59,60,53 in each 4 the above-mentioned salient pole that constitutes above-mentioned each salient pole group
51, W
52, W
57, and W
55, W
56, W
61And W
59, W
60, W
53Image pattern shows like that and connects, and forms A phase, B phase and C mutually, constitutes three-phase motor.
Each A, B, the C phase winding is the same with the foregoing description, and image pattern 10 connects like that.With irrelevant salient pole 54,58,62 and the winding W thereof of formation mutually among the above-mentioned salient pole group
54, W
58, W
62Constitute sensing utmost point S respectively
C, S
A, S
B
Therefore utilize structure as described above, the cylindric straight pulse motor of three-phase permanent type of holding position transducer in constituting.The basic amount of movement of at this moment each stepping be the little tooth 80 of mover tooth pitch 1/4 be 3t (t is the folded thick of mover core unit 74).Because interior dress can detect the position of mover 3 and the sensing utmost point S of moving direction
A, S
B, S
CSo, also can work as the brushless dc servomotor.
The invention is not restricted to the technology in the foregoing description, also available energy obtains other means of effect same, and technology of the present invention also can be carried out all changes in the scope of above-mentioned formation.
As shown in the above description, constitute two-phase or three-phase permanent type straight pulse motor or brushless DC permanent magnet molded lines motor according to linear motor of the present invention, simultaneously owing to each winding along the circumferential direction is configured in this stator core to be wrapped in each formation of extremely going up, can irrespectively increase harvesting winding part with tooth pitch, get big ampere-conductors, so also can constitute the linear motor of small-sized high thrust.
Because permanent-magnet pole is arranged on stator side, so can not make the length of said motor elongated and realize long strokeization, simultaneously since mover core can be by stacked regulation number mover iron plate as the mover core unit, again its clockwise moving predetermined angular is carried out stacked formation, so highly productive.
And, need not encoder be set in addition because interior dress can detect the sensing utmost point of rotor position and moving direction, resolver just can form the linear servo system as brushless direct current linear motor at an easy rate.
Claims (3)
1. linear motor, stator and mover be equipped with, described stator have with etc. the inclination angle be the stator core of radial configuration even number salient pole to the inside and be wrapped in winding on above-mentioned each salient pole respectively, described mover is removable vertically to be bearing in this stator freely, this mover also includes mover core, its outer peripheral face upper edge axial arrangement has the little tooth of a plurality of movers, it is characterized in that: on the inner peripheral surface of the above-mentioned salient pole of said stator iron core, by equidistantly disposing a plurality of permanent-magnet poles that magnetize along radial direction, its polarity is alternately different vertically, and the little tooth of above-mentioned mover is to double the equidistant configuration of the disposition interval that disposes above-mentioned permanent-magnet pole simultaneously; Above-mentioned mover core is that stacked of mover iron plate with the above-mentioned mover core of regulation sheet number is used as the mover core unit, and with the angle that the little tooth row row of above-mentioned mover iron plate peripheral part are determined, order is rotated each unit and stacked formation; The said stator salient pole when its salient pole number is N, when the number of phases of said motor is m, is made of m group salient pole group, and described salient pole group is made up of by N/m salient pole of the angle configurations of impartial 720m/N degree paired per two salient poles of mutual vicinity; Be wrapped in (N/m-1) that belong to above-mentioned many salient poles group individual or (N/m-2) winding on the individual salient pole respectively, polarity connects on the contrary between above-mentioned right salient pole constituting, clip enough become the above-mentioned right salient pole that belongs to other salient pole group to and between relative salient pole, connect to same polarity, constitute the phase winding of m phase; The irrelevant remaining salient pole of mutually formation, can make it as polyphase linear impulse motor or the linear motor operations of brushless direct current in order to axial location and the moving direction that detects mover as the sensing utmost point among heterogeneous and the above-mentioned salient pole group.
2. according to the described linear motor of claim 1, it is characterized in that described stator core such as number of phases m are 2, k is during greater than 1 integer, 8 salient poles are arranged, organize by the little tooth group who becomes 135/k degree angle configurations to form by k simultaneously at two little teeth of above-mentioned mover iron plate peripheral part, above-mentioned each little tooth faciation is mutually the angle configurations of 360/k degree, above-mentioned mover core be with above-mentioned mover core sequence of unit one by one ROT13 5/k degree carry out stacked formation, when the axial width of above-mentioned mover core unit was t, the disposition interval that is configured in the permanent-magnet pole on the said stator iron core was 4t.
3. according to the described linear motor of claim 1, it is characterized in that it is 3 that number of phases m is worked as in described stator core, k is the integer number greater than 1,12k salient pole arranged, organize the little tooth group who forms by two little teeth that become the 150/k degree to be arranged on above-mentioned mover iron plate peripheral part by k simultaneously, above-mentioned each little tooth faciation is mutually the configuration of 360/k degree, above-mentioned mover core is above-mentioned mover core sequence of unit to be rotated the 150/k degree one by one carry out stacked formation, when the axial width of above-mentioned mover core unit was t, the disposition interval that is configured in the permanent-magnet pole on the said stator iron core was 6t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115381A CN1038289C (en) | 1994-09-29 | 1994-09-29 | Linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115381A CN1038289C (en) | 1994-09-29 | 1994-09-29 | Linear motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1111415A CN1111415A (en) | 1995-11-08 |
| CN1038289C true CN1038289C (en) | 1998-05-06 |
Family
ID=5037470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115381A Expired - Fee Related CN1038289C (en) | 1994-09-29 | 1994-09-29 | Linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038289C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100566094C (en) * | 2002-04-23 | 2009-12-02 | 三菱电机株式会社 | Linear motor |
| JP5870973B2 (en) * | 2013-07-29 | 2016-03-01 | 株式会社安川電機 | Linear motor |
| CN104167898B (en) * | 2014-08-29 | 2016-08-17 | 东南大学 | A kind of screw propulsion travelling-magnetic-field motor |
| CN108328249B (en) * | 2017-07-06 | 2019-10-25 | 上海果栗自动化科技有限公司 | A kind of linear transmission system |
| CN109951045A (en) * | 2017-12-20 | 2019-06-28 | 大银微系统股份有限公司 | Linear motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3441819A (en) * | 1966-04-18 | 1969-04-29 | Superior Electric Co | Reciprocating linear motor |
| EP0319096A2 (en) * | 1987-12-02 | 1989-06-07 | Koninklijke Philips Electronics N.V. | Linear motor with angularly indexed magnetic poles |
-
1994
- 1994-09-29 CN CN94115381A patent/CN1038289C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3441819A (en) * | 1966-04-18 | 1969-04-29 | Superior Electric Co | Reciprocating linear motor |
| EP0319096A2 (en) * | 1987-12-02 | 1989-06-07 | Koninklijke Philips Electronics N.V. | Linear motor with angularly indexed magnetic poles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1111415A (en) | 1995-11-08 |
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