CN104767352A - Linear motor and manufacturing method thereof - Google Patents
Linear motor and manufacturing method thereof Download PDFInfo
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- CN104767352A CN104767352A CN201410709997.8A CN201410709997A CN104767352A CN 104767352 A CN104767352 A CN 104767352A CN 201410709997 A CN201410709997 A CN 201410709997A CN 104767352 A CN104767352 A CN 104767352A
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- armature portion
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Abstract
According to the invention, effects of magnetic attraction between an armature part or a magnet yoke and an exciting magnet of a linear motor can be reduced. A linear motor (20B) is provided with an excitation part (1) with multiple permanent magnets (2), a first armature part (6) and a third magnet yoke arranged on two sides of the excitation part (1), and a bearing part (16) used for supporting the first armature part (6) and the third magnet yoke (15). The magnetic attraction which is allowed to act between the excitation part (1) and the first armature part (6) is actually equal to the magnetic attraction acting between the excitation part (1) and the third magnet yoke (15).
Description
Technical field
The present invention relates to the manufacture method of a kind of linear electric motors and linear electric motors.
Background technology
In patent documentation 1, describe a kind of stator side have armature portion, moving member side has the linear electric motors of the movable magnet type of permanent magnet.In these linear electric motors, the armature portion with armature coil is fixed in pedestal, and pedestal is configured with the line slideway of this armature portion of clamping in parallel to each other.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2005-253194 publication (the first figure)
Summary of the invention
The technical problem to be solved in the present invention
In the linear electric motors of above-mentioned prior art, due to the impact of magnetic pull produced between the pedestal in fixed armature portion and the permanent magnet of moving member side, following problem can be caused, operability when reducing assembling linear electric motors or increase the size etc. of line slideway.
The present invention completes in view of the above problems, its objective is the linear electric motors of impact and the manufacture method of linear electric motors that provide one can reduce the magnetic pull between armature portion (or yoke) and excitation division.
For the method for technical solution problem
In order to solve the problem, according to a viewpoint of the present invention, be applicable to a kind of linear electric motors, multiple armature coils that it has the excitation division possessing multiple permanent magnet, the armature portion of the both sides being configured in described excitation division and yoke, described armature portion has, act on the magnetic pull between described armature portion and described excitation division, in fact equal with the magnetic pull acted between described yoke with described excitation division.
In addition, according to other viewpoint of the present invention, be applicable to a kind of linear electric motors, multiple multiple hollow type coils having core pattern coil and described two armature portion the opposing party to have that it has the excitation division possessing multiple permanent magnet, two armature portion of the both sides being configured in described excitation division, described two armature portion one sides have, act on the magnetic pull between described two armature portion one sides and described excitation division, described two armature portion the opposing party are in fact equal with the magnetic pull between described excitation division with acting on.
In addition, according to other viewpoint of the present invention, be applicable to a kind ofly to there is the excitation division that possesses multiple permanent magnet and be configured in two armature portion of both sides of described excitation division or the manufacture method of the linear electric motors of yoke, the manufacture method of these linear electric motors has following steps: from be configured with multiple reel at tooth the second armature portion having the first armature portion of core pattern armature coil, be configured with multiple hollow type armature coil, be not configured with in the 3rd yoke of described armature coil, select described two armature portion or yoke; And, to make to act on selected described two described armature portion or the magnetic pull between yoke one side and described excitation division, with act on selected described two described armature portion or the in fact equal mode of the magnetic pull between yoke the opposing party with described excitation division, configure described excitation division and described two armature portion or yoke.
Invention effect
According to the present invention, armature portion or the impact of magnetic pull between yoke and excitation division of linear electric motors can be reduced.
Accompanying drawing explanation
Fig. 1 is transverse sectional view and the longitudinal sectional view of the component parts forming the linear electric motors that execution mode relates to.
Fig. 2 is transverse sectional view and the longitudinal sectional view of the component parts forming the linear electric motors that execution mode relates to.
Fig. 3 is transverse sectional view and the longitudinal sectional view of the component parts forming the linear electric motors that execution mode relates to.
Fig. 4 is transverse sectional view and the longitudinal sectional view of the component parts forming the linear electric motors that execution mode relates to.
Fig. 5 is transverse sectional view and the longitudinal sectional view of the component parts forming the linear electric motors that execution mode relates to.
Fig. 6 is transverse sectional view and the longitudinal sectional view of the first case representing the linear electric motors that execution mode relates to.
Fig. 7 is transverse sectional view and the longitudinal sectional view of the second case representing the linear electric motors that execution mode relates to.
Fig. 8 is transverse sectional view and the longitudinal sectional view of the 3rd example representing the linear electric motors that execution mode relates to.
Fig. 9 is transverse sectional view and the longitudinal sectional view of the 4th example representing the linear electric motors that execution mode relates to.
Figure 10 is transverse sectional view and the longitudinal sectional view of the 5th example representing the linear electric motors that execution mode relates to.
Description of reference numerals
1: excitation division
2: permanent magnet
6: the first armature portion
7: the first yokes
8: armature coil (having core pattern coil)
9: tooth
10: the second armature portion
11: the second yokes
12: armature coil (hollow type coil)
13: hollow portion
15: the three yokes
16: support unit
20A ~ 20E: linear electric motors
Embodiment
Below, with reference to accompanying drawing, an execution mode is described.In addition, the structure of electric rotating machine etc. for convenience of explanation, suitably uses the direction such as up and down below, but and is not used in the position relationship limiting each structures such as electric rotating machine.
The component parts > of < linear electric motors
Use Fig. 1 ~ Fig. 5 that the component parts that formation linear electric motors of the present embodiment use is described.In addition, in each figure of Fig. 1 ~ Fig. 5, the horizontal section of the component parts in the cross section that (a) expression is orthogonal with the stroke directions of linear electric motors, (b) represent the longitudinal profile of the component parts in the cross section of the stroke directions of linearly motor.
Component parts shown in Fig. 1 is excitation division 1.Excitation division 1 has multiple (be four in this example) permanent magnet 2.Each permanent magnet 2 is formed rectangular plate-like in this example.Multiple permanent magnet 2 is configured in the stroke directions (in Fig. 1 (b) left and right directions) of linear electric motors, and being spaced from each other predetermined distance is row.Excitation division 1 is configured to fixing in one to multiple permanent magnet 2 and nonmagnetic material 3.In this example, nonmagnetic material 3 is resin, is molded in one with permanent magnet 2.In other examples, nonmagnetic material 3 also can be aluminium and be adhesively fixed with permanent magnet 2.
Component parts shown in Fig. 2 is the first armature portion 6.First armature portion 6 has the first yoke 7 and has core pattern armature coil 8 with multiple (be six in this example).Such as the first yoke 7 is rectangular plate-like, and has multiple (be six in this example) tooth 9.Multiple tooth 9 is set as the part in the Width side (in Fig. 2 (a) right side) near the first yoke 7 one side surface (in Fig. 2 downside), and being spaced from each other predetermined distance is row.Each armature coil 8 is configured to winding line astragal on tooth 9, in the part of Width (in Fig. 2 (a) left and right directions) side (in Fig. 2 (a) right side) near the first yoke 7 one side surface (in Fig. 2 downside), in a row configuration.Though the diagram of eliminating, but by resin, multiple armature coil 8 is carried out mold pressing with tooth 9 simultaneously.
Component parts shown in Fig. 3 is the second armature portion 10.Second armature portion 10 has the second yoke 11 and multiple (be six in this example) hollow type armature coil 12.Such as the second yoke 11 is rectangular plate-like, different from above-mentioned first armature portion, does not have tooth.Multiple armature coil 12 is configured to the part in the Width side (in Fig. 3 (a) right side) near the second yoke 11 1 side surface (in Fig. 3 downside), in row.Each armature coil 12 has hollow portion 13, carries out mold pressing by resin.This second armature portion 10 has the size roughly the same with the first armature portion 6.That is, the second yoke 11 of the second armature portion 10 and the first yoke 7 of armature coil 12 and the first armature portion 6 and armature coil 8 roughly form same size respectively in stroke directions, Width, gap direction (in Fig. 3 above-below direction).
Component parts shown in Fig. 4 is the 3rd yoke 15.3rd yoke 15 does not have tooth and armature coil, such as, be only made up of the magnetic sheet of rectangular plate-like.3rd yoke 15 has the size roughly the same with the first yoke 7 and the second yoke 11.
Component parts shown in Fig. 5 is support unit 16.Support unit 16 is such as made up of the magnetic sheet of rectangular plate-like, supports it for selecting two yokes from above-mentioned first yoke 7, second yoke 11, the 3rd yoke 15.Support unit 16 is roughly the same with the size of the stroke directions of yoke 7,11,15.In addition, although the diagram of eliminating, in the present embodiment, the multiple support unit 16 that gap direction (in Fig. 5 above-below direction) size is different has been prepared.
The structure > of < linear electric motors
Use Fig. 6 to Figure 10 that the example of linear electric motors of the present embodiment is described.In addition, in each figure of Fig. 6 ~ Figure 10, (a) represents the horizontal section of the linear electric motors in the cross section orthogonal with stroke directions, and (b) represents the longitudinal profile along the linear electric motors of stroke directions.In the present embodiment, each linear electric motors are configured to use two armature portion selecting from excitation division 1, support unit 16, first armature portion 6, second armature portion 10 and the 3rd yoke 15 or yoke, to make to act on two armature portion or the magnetic pull between yoke one side and excitation division 1, with act on two armature portion or the magnetic pull between yoke the opposing party with excitation division 1 equal.In addition, this so-called " equal ", not proper equal.That is, so-called magnetic pull " equal ", allow in design, manufacture on there is tolerance or error, i.e. the meaning of " in fact equal ".
(first cases of linear electric motors)
Use Fig. 6 that the first case of linear electric motors of the present embodiment is described.As shown in Figure 6, linear electric motors 20A have possess multiple (be four in this example) excitation division 1 of permanent magnet 2, the armature portion being configured in gap direction (in Fig. 6 above-below direction) both sides of excitation division 1 and yoke, with support unit 16 (omit in Fig. 6 (b) and illustrate).As armature portion and yoke, use there is multiple (be six in this example) hollow type armature coil 12 the second armature portion 10, with the 3rd yoke 15 without armature coil.
Second armature portion 10 is configured in the gap direction side (in Fig. 6 upside) of excitation division 1, and to make armature coil 12 with faced by excitation division 1, the 3rd yoke 15 is configured in the gap direction opposite side (in Fig. 6 downside) of excitation division 1.In Width opposite side (in Fig. 6 (a) left side), the second armature portion 10 and the 3rd yoke 15 are supported by the support unit 16 inserted therebetween.By guides such as the not shown line slideways set by the Width side (in Fig. 6 (a) right side) such as in the second armature portion 10 and the 3rd yoke 15, excitation division 1 is supported to and slides freely in stroke directions.Thus, form using excitation division 1 as movable member, using the second armature portion 10 and the 3rd yoke 15 linear electric motors 20A as stator.
In linear electric motors 20A, the interval G1 between the second yoke 11 of the second armature portion 10 and excitation division 1, interval G2 between the 3rd yoke 15 and excitation division 1 are set as same distance.In addition, in this so-called " same distance ", not proper identical.That is, allow in design, manufacture on there is tolerance or error, i.e. the meaning of " practically identical distance ".In addition, compare the interval G2 between the 3rd yoke 15 and excitation division 1, the interval g1 between the second armature portion 10 and excitation division 1 is less.Its result, act on the magnetic pull between the second armature portion 10 and excitation division 1, in fact equal with the magnetic pull acted between the 3rd yoke 15 and excitation division 1, therefore can realize offseting the linear electric motors 20A of the magnetic pull acted on respectively between excitation division 1 and armature portion 10, yoke 15.
(second cases of linear electric motors)
Use Fig. 7 that the second case of linear electric motors of the present embodiment is described.As shown in Figure 7, linear electric motors 20B has and possesses multiple (be four in this example) excitation division 1 of permanent magnet 2, the armature portion being configured in gap direction (in Fig. 7 above-below direction) both sides of excitation division 1 and yoke, with support unit 16 (omit in Fig. 7 (b) and illustrate).As armature portion and yoke, use have multiple (be six in this example) tooth 9 winding line astragal have the first armature portion 6 of core pattern armature coil 8, with the 3rd yoke 15 without armature coil.
First armature portion 6 is configured in the gap direction side (in Fig. 7 upside) of excitation division 1, and to make armature coil 8 with faced by excitation division 1, the 3rd yoke 15 is configured in the gap direction opposite side (in Fig. 7 downside) of excitation division 1.In Width opposite side (in Fig. 7 (a) left side), the first armature portion 6 and the 3rd yoke 15 are supported by the support unit 16 inserted therebetween.By the not shown guide set by the Width side (in Fig. 7 (a) right side) such as in the first armature portion 6 and the 3rd yoke 15, excitation division 1 is supported to and slides freely in stroke directions.Thus, form using excitation division 1 as movable member, using the first armature portion 6 and the 3rd yoke 15 linear electric motors 20B as stator.
In linear electric motors 20B, suppose that the interval G3 between the first yoke 7 of the first armature portion 6 and the excitation division 1 and interval G4 between the 3rd yoke 15 and excitation division 1 is apart from time identical, armature portion or the magnetic pull between yoke and excitation division 1 are, compare the magnetic pull of the 3rd yoke 15 not being configured with tooth, larger in the magnetic pull of the first armature portion 6 being configured with tooth 9.To this, interval G4 is set to and is less than interval G3, to increase the magnetic pull between the 3rd yoke 15 and excitation division 1.That is, to make to act on the first armature portion 6 mode in fact equal with the magnetic pull acted between the 3rd yoke 15 and excitation division 1 with the magnetic pull between excitation division 1 to set interval G3 and interval G4.In addition, identical with above-mentioned linear electric motors 20A, compare the interval G4 between the 3rd yoke 15 and excitation division 1, the interval g3 between the first armature portion 6 and excitation division 1 is less.Thus, can realize offseting the linear electric motors 20B of the magnetic pull acted on respectively between excitation division 1 and armature portion 6, yoke 15.
(the 3rd examples of linear electric motors)
Use Fig. 8 that the 3rd example of linear electric motors of the present embodiment is described.As shown in Figure 8, linear electric motors 20C have the excitation division 1 possessing multiple (be four in this example) permanent magnet 2, two armature portion being configured in gap direction (in Fig. 8 above-below direction) both sides of excitation division 1, with support unit 16 (omit in Fig. 8 (b) and illustrate).As two armature portion, use two the second armature portion 10 being configured with multiple (be six in this example) hollow type armature coil 12.
Two the second armature portion 10 are arranged, respectively gap direction (in Fig. 8 above-below direction) both sides of excitation division 1, to make armature coil 12 with faced by excitation division 1.In Width opposite side (in Fig. 8 (a) left side), two armature portion 10 are supported by the support unit 16 inserted therebetween.By the not shown guide set by the Width side (in Fig. 8 (a) right side) such as two armature portion 10, excitation division 1 is supported to and slides freely in stroke directions.Thus, form using excitation division 1 as movable member, using the linear electric motors 20C of two the second armature portion 10,10 as stator.
In linear electric motors 20C, be set to that the interval G6 between the second yoke 11 of interval G5 between the second yoke 11 of side second armature portion 10 and excitation division 1 and the opposing party second armature portion 10 and excitation division 1 is same distance.That is, the interval g5 between side second armature portion 10 and the excitation division 1 and interval g6 between the opposing party second armature portion 10 and excitation division 1 is also same distance.Its result, act on side second armature portion 10 and the magnetic pull between excitation division 1 and to act on the opposing party second armature portion 10 in fact equal with the magnetic pull between excitation division 1, therefore can realize offseting the linear electric motors 20C of the magnetic pull acted on respectively between excitation division 1 and two the second armature portion 10,10.
(the 4th examples of linear electric motors)
Use Fig. 9 that the 4th example of linear electric motors of the present embodiment is described.As shown in Figure 9, linear electric motors 20D have the excitation division 1 possessing multiple (be four in this example) permanent magnet 2, two armature portion being configured in gap direction (in Fig. 9 above-below direction) both sides of excitation division 1, with support unit 16 (omit in Fig. 9 (b) and illustrate).As two armature portion, use two to be configured with the first armature portion 6 that multiple (be six in this example) has core pattern armature coil 8.
Two the first armature portion 6 are arranged, respectively gap direction (in Fig. 9 above-below direction) both sides of excitation division 1, to make armature coil 8 with faced by excitation division 1.In Width opposite side (in Fig. 9 (a) left side), two armature portion 6 are supported by the support unit 16 inserted therebetween.By the not shown guide set by the Width side (in Fig. 9 (a) right side) such as two armature portion 6, excitation division 1 is supported to and slides freely in stroke directions.Thus, form using excitation division 1 as movable member, using the linear electric motors 20D of two the first armature portion 6,6 as stator.
In linear electric motors 20D, be set to that the interval G8 between the first yoke 7 of interval G7 between the first yoke 7 of side first armature portion 6 and excitation division 1 and the opposing party first armature portion 6 and excitation division 1 is same distance.That is, the interval g7 between side first armature portion 6 and the excitation division 1 and interval g8 between the opposing party first armature portion 6 and excitation division 1 is also same distance.Its result, act on side first armature portion 6 and the magnetic pull between excitation division 1 and to act on the opposing party first armature portion 6 in fact equal with the magnetic pull between excitation division 1, therefore can realize offseting the linear electric motors 20D of the magnetic pull acted on respectively between excitation division 1 and two the first armature portion 6,6.
(the 5th examples of linear electric motors)
Use Figure 10 that the 5th example of linear electric motors of the present embodiment is described.As shown in Figure 10, linear electric motors 20E have the excitation division 1 possessing multiple (be four in this example) permanent magnet 2, two armature portion being configured in gap direction (in Figure 10 above-below direction) both sides of excitation division 1, with support unit 16 (omit in Figure 10 (b) and illustrate).As two armature portion, use be configured with multiple (be six in this example) have the first armature portion 6 of core pattern armature coil 8, with the second armature portion 10 being configured with multiple (be six in this example) hollow type armature coil 12.
First armature portion 6 is configured in the gap direction opposite side (in Figure 10 downside) of excitation division 1, to have made core pattern armature coil 8 with faced by excitation division 1, second armature portion 10 is configured in the gap direction side (in Figure 10 upside) of excitation division 1, to make hollow type armature coil 12 with faced by excitation division 1.In Width opposite side (in Figure 10 (a) left side), the first armature portion 6 and the second armature portion 10 are supported by the support unit 16 inserted therebetween.By the not shown guide set by the Width side (in Figure 10 (a) right side) such as in the first armature portion 6 and the second armature portion 10, excitation division 1 is supported to and slides freely in stroke directions.Thus, form using excitation division 1 as movable member, using the first armature portion 6 and the second armature portion 10 linear electric motors 20E as stator.
In linear electric motors 20E, suppose that interval G10 between the first yoke 7 of interval G9 between the second yoke 11 of the second armature portion 10 and excitation division 1 and the first armature portion 6 and excitation division 1 is apart from time identical, compare the magnetic pull be not configured with between the second armature portion 10 of tooth and excitation division 1, the magnetic pull be configured with between the first armature portion 6 of tooth 13 and excitation division 1 is larger.To this, be set to that interval G9 is less than interval G10, to increase the magnetic pull between the second armature portion 10 and excitation division 1.That is, to make to act on the first armature portion 6 mode in fact equal with the magnetic pull acted between the second armature portion 10 and excitation division 1 with the magnetic pull between excitation division 1 to set interval G9 and interval G10.Its result, compares the interval g10 between the first armature portion 6 and excitation division 1, and the interval g9 between the second armature portion 10 and excitation division 1 is less.Thus, can realize offseting the linear electric motors 20E of the magnetic pull acted on respectively between excitation division 1 and two armature portion 6,10.
The manufacture method > of < linear electric motors
Linear electric motors 20A ~ the 20E of this spline structure manufactures roughly by the following method above.That is, from there is multiple the second armature portion 10 having the first armature portion 6 of core pattern armature coil 8, have multiple hollow type armature coil 12 at tooth 9 winding line astragal, not having the 3rd yoke 15 of armature coil, two armature portion or yoke is selected.And, to make to act on two selected armature portion or yoke one side and the magnetic pull between excitation division 1 and to act on two selected armature portion or the in fact equal mode of the magnetic pull between yoke the opposing party with excitation division 1, configure excitation division 1 and two armature portion or yoke.
Specifically, configuration excitation division 1 and two armature portion or yoke, with the interval making side's armature portion or the interval between yoke and excitation division 1 and the opposing party's armature portion or the interval between yoke and excitation division 1 become set in advance, thus make the magnetic pull of two sides in fact equal.Now, select the support unit 16 of appropriate size, this selected support unit 16 is inserted between two yokes.In addition, by the guide of the excitation division 1 corresponding to above-mentioned interval, excitation division 1 is installed.Thus, linear electric motors 20A ~ 20E is produced.
The effect > of < execution mode
The effect of present embodiment is then described.In addition, below, when not special difference linear electric motors 20A, 20B, 20C, 20D, 20E, be only called " linear electric motors 20 ".
As described above, the linear electric motors 20 of present embodiment have the excitation division 1 possessing multiple permanent magnet 2, two armature portion of the both sides being configured in excitation division 1 or yoke (two that select from the first armature portion 6, second armature portion 10, the 3rd yoke 15).Further, be configured to act on the magnetic pull between excitation division 1 and side's armature portion or yoke, with to act on excitation division 1 in fact equal with the magnetic pull between the opposing party's armature portion or yoke.Thus, can the magnetic pull of eutralizing operation between excitation division 1 and armature portion or yoke, thus reduce the impact of magnetic pull.Its result, can improve operability during assembling linear electric motors 20, and can realize the miniaturization of linear electric motors 20 due to the miniaturization of the guide of the excitation divisions such as line slideway 1.
In addition, especially in the linear electric motors 20A (or linear electric motors 20B of second case) of first case, only the multiple armature coil 12 (or armature coil 8) of the upper configuration of folk prescription armature portion 10 (or armature portion 6) in two armature portion 10, yoke 15 (or armature portion 6, yoke 15).That is, be configured in the opposing party's yoke 15, not configure armature coil.Thus, and configure two yoke both sides compared with armature coil 12 (or armature coil 8), can number of components be reduced, and can reduce costs.In addition, when two yoke both sides configure armature coil 12 (or armature coil 8), there is the situation becoming superfluous specification according to service condition etc., but in linear electric motors 20A, 20B, specification can be prevented superfluous, thus realize the linear electric motors taking into account Cost And Performance.In addition, when armature coil is set to the hollow type coil 12 as linear electric motors 20A, also effectively cogging torque can be reduced.
In addition, especially in the linear electric motors 20B of second case, what multiple armature coil was configured on tooth 9 winding line astragal has core pattern coil 8.Thus, compare the linear electric motors 20A of first case, the magnetic flux with coil interlinkage can be increased, and can constant of the machine be improved.
In addition, especially in the linear electric motors 20B of second case, compared with the interval G4 do not had between the 3rd yoke 15 of armature coil and excitation division 1, to make to have the mode having the interval g3 between the first armature portion 6 of core pattern armature coil 8 and excitation division 1 less, configure excitation division 1 and armature portion 6, yoke 15.Thus, compared with the interval G4 between the 3rd yoke 15 and excitation division 1, the interval G3 between the first yoke 7 of the first armature portion 6 and excitation division 1 can be made larger.Its result, can make to act on respectively excitation division 1 in fact equal with the magnetic pull between armature portion 6, yoke 15 and offset.In addition, compared with the linear electric motors 20A of first case etc., because the interval G4 between the 3rd yoke 15 and excitation division 1 is less, linear electric motors 20B therefore can be made miniaturized, and narrow due to magnetic gap, also effectively can improve constant of the machine.
In addition, especially, in the linear electric motors 20C (or linear electric motors 20E of the linear electric motors 20D of the 4th example or the 5th example) of the 3rd example, multiple armature coil 12 (or armature coil 8) is configured two armature portion 10,10 (or armature portion 6,6 or armature portion 10,6) both sides.Thus, with linear electric motors 20A, 20B such only configure compared with armature coil 12 (or armature coil 8) at the folk prescription of two yokes, thrust and constant of the machine can be increased, thus the linear electric motors of high standard can be realized.Especially, in linear electric motors 2D, owing to being provided with core pattern armature coil 8 on the both sides of two armature portion 6,6, therefore thrust and constant of the machine can have been improved further.In addition, when armature coil is set to the such hollow type coil 12 of linear electric motors 20C, cogging torque can be reduced.
In addition, especially in the linear electric motors 20E of the 5th example, be configured with in side first armature portion 6 and multiplely have core pattern armature coil 8, be configured with multiple hollow type armature coil 12 in the opposing party second armature portion 10.Owing to being configured with armature coil two armature portion 6,10 both sides, therefore the linear electric motors of thrust and the higher high standard of constant of the machine can be become, and, because side armature coil 12 is set as hollow type, therefore, compared with both sides armature coil being set to the linear electric motors 20D of core pattern, cogging torque can be reduced.That is, high standardization can be taken into account and reduce cogging torque.
In addition, especially in the present embodiment, from the first armature portion 6, second armature portion 10, the 3rd yoke 15, select two armature portion or yoke, to make to act on two selected armature portion or the magnetic pull between yoke one side and excitation division 1, with act on two selected armature portion or the equal mode of the magnetic pull between yoke the opposing party with excitation division 1, configure excitation division 1 and two armature portion or yoke, manufacture linear electric motors 20 thus.By such manufacture method, while the impact of reduction magnetic pull can be realized, according to thrust or the size of constant of the machine, the needs such as size, the size of installation space, the height of cost of cogging torque, linear electric motors 20 can be formed.
< variation >
In addition, embodiments of the present invention are not limited to above-mentioned content, in the scope not departing from its aim and technical thought, can carry out various change.
Such as, with upper, using the excitation division 1 of linear electric motors 20 as movable member, using armature (two that select from the first armature portion 6, second armature portion 10, the 3rd yoke 15) as stator, but also can on the contrary using excitation division 1 as stator, using armature as movable member.
In addition, with upper, groove for each linear electric motors 20 combines, be illustrated for the situation being configured with four pole six grooves of four permanent magnets 2 relative to the armature coil (groove number is six) being configured with six positions in stroke directions, but being not limited thereto, also can be other groove combination.
In addition, except the content illustrated above, also can be appropriately combined and utilize the method for above-mentioned execution mode.
In addition, do not illustrate one by one, but above-mentioned execution mode is not departing from the scope of its aim, can implement the mode adding various change.
Claims (5)
1. linear electric motors, is characterized in that, have:
Excitation division, it possesses multiple permanent magnet;
Armature portion and yoke, it is configured in the both sides of described excitation division; And
Multiple armature coils that described armature portion has,
Act on the magnetic pull between described armature portion and described excitation division, in fact equal with the magnetic pull acted between described yoke with described excitation division.
2. linear electric motors according to claim 1, is characterized in that,
Described multiple armature coil be on tooth winding line astragal have core pattern coil.
3. linear electric motors according to claim 2, is characterized in that,
Described excitation division is configured to described armature portion and yoke: compared with the interval between described yoke and described excitation division, makes the interval that has between the described armature portion of described multiple armature coil and described excitation division little.
4. linear electric motors, is characterized in that, have:
Excitation division, it possesses multiple permanent magnet;
Two armature portion, it is configured in the both sides of described excitation division;
What described two armature portion one sides had multiplely has core pattern coil; And
Multiple hollow type coils that described two armature portion the opposing party have,
Act on the magnetic pull between described two armature portion one sides and described excitation division, described two armature portion the opposing party are in fact equal with the magnetic pull between described excitation division with acting on.
5. a manufacture method for linear electric motors, is characterized in that,
Described linear electric motors have two armature portion or yokes of the excitation division possessing multiple permanent magnet, the both sides being configured in described excitation division,
The manufacture method of described linear electric motors has following steps:
From have multiple winding line astragal on tooth the second armature portion having the first armature portion of core pattern armature coil, there is multiple hollow type armature coil, do not have in the 3rd yoke of described armature coil, select described two armature portion or yoke; And
Described excitation division and described two armature portion or yoke are configured to: make to act on selected described two armature portion or the magnetic pull between yoke one side and described excitation division, with act on selected described two described armature portion or the magnetic pull between yoke the opposing party with described excitation division in fact equal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014001515A JP6115729B2 (en) | 2014-01-08 | 2014-01-08 | Linear motor and method for manufacturing linear motor |
| JP2014-001515 | 2014-01-08 |
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| CN104767352A true CN104767352A (en) | 2015-07-08 |
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| CN201410709997.8A Pending CN104767352A (en) | 2014-01-08 | 2014-11-28 | Linear motor and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20190112153A (en) * | 2017-03-24 | 2019-10-02 | 히타치 긴조쿠 가부시키가이샤 | Linear motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018180945A1 (en) * | 2017-03-30 | 2018-10-04 | 日本電産サンキョー株式会社 | Actuator |
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| TW200537786A (en) * | 2003-12-19 | 2005-11-16 | Yaskawa Denki Seisakusho Kk | Moving magnet type linear actuator |
| WO2010053444A1 (en) * | 2008-11-07 | 2010-05-14 | Howe Yuen Lim | Dual coil linear motor with compensated cogging and attraction force |
| CN102792571A (en) * | 2010-03-23 | 2012-11-21 | 日立金属株式会社 | Linear motor |
| CN103427585A (en) * | 2012-03-29 | 2013-12-04 | 山洋电气株式会社 | Tubular linear motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3796608B2 (en) * | 1997-04-11 | 2006-07-12 | 株式会社安川電機 | Moving magnet type linear motor |
| JP4537745B2 (en) * | 2004-03-30 | 2010-09-08 | 株式会社日立製作所 | Linear motor |
| JP5476495B2 (en) * | 2013-03-07 | 2014-04-23 | 株式会社日立製作所 | Linear motor |
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- 2014-01-08 JP JP2014001515A patent/JP6115729B2/en active Active
- 2014-11-28 CN CN201410709997.8A patent/CN104767352A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200537786A (en) * | 2003-12-19 | 2005-11-16 | Yaskawa Denki Seisakusho Kk | Moving magnet type linear actuator |
| WO2010053444A1 (en) * | 2008-11-07 | 2010-05-14 | Howe Yuen Lim | Dual coil linear motor with compensated cogging and attraction force |
| CN102792571A (en) * | 2010-03-23 | 2012-11-21 | 日立金属株式会社 | Linear motor |
| CN103427585A (en) * | 2012-03-29 | 2013-12-04 | 山洋电气株式会社 | Tubular linear motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190112153A (en) * | 2017-03-24 | 2019-10-02 | 히타치 긴조쿠 가부시키가이샤 | Linear motor |
| CN110476340A (en) * | 2017-03-24 | 2019-11-19 | 日立金属株式会社 | Linear motor |
| CN110476340B (en) * | 2017-03-24 | 2021-07-06 | 日立金属株式会社 | Linear motor |
| KR102339956B1 (en) | 2017-03-24 | 2021-12-16 | 히타치 긴조쿠 가부시키가이샤 | linear motor |
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| JP2015130754A (en) | 2015-07-16 |
| JP6115729B2 (en) | 2017-04-19 |
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