CN103229255B - Ac electromagnet structure - Google Patents
Ac electromagnet structure Download PDFInfo
- Publication number
- CN103229255B CN103229255B CN201180015918.8A CN201180015918A CN103229255B CN 103229255 B CN103229255 B CN 103229255B CN 201180015918 A CN201180015918 A CN 201180015918A CN 103229255 B CN103229255 B CN 103229255B
- Authority
- CN
- China
- Prior art keywords
- exciting coil
- magnet exciting
- coil
- magnetic flux
- shielded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
- H01F7/12—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements
- H01F7/1205—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements having short-circuited conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
Abstract
This AC electromagnet structure is provided with a disc-shaped movable member capable of moving in the axial direction, an iron core yoke adjacent to the movable member in the axial direction with a primary gap interposed therebetween, an annular first exciting coil embedded in the iron core yoke, an annular second exciting coil embedded in the iron core yoke to the outside of the first exciting coil, and an annular shading coil embedded in the iron core yoke to the outside of the second exciting coil; the shading coil being arranged at a position that is adjacent to the outer circumference of the second exciting coil and that faces the primary gap; and AC power being inputted into each of the first exciting coil and the second exciting coil.
Description
Technical field
The present invention relates to a kind of alternating electromagnet structure.
Background technology
Current, in the electromagnet structure of concentric shape, to magnet exciting coil input direct-current electric power, use.
In patent documentation 1, record following technology, that is, when not driving, rotor has been implemented in the motor of band brake of braking, by being fixed on coil in yoke portion, formed the electric current inside and outside 2 heavy coils that contrary direction flows towards each other.Thus, according to patent documentation 1, when motor rotarilys actuate, the magnetic flux that is delivered to interior of rotating shaft reduces, and can reduce significantly magnetic field to brake externalities.
Patent documentation 1: Japanese Patent Publication 6-74066 communique
Summary of the invention
In the motor of the band brake of recording, can expect that inside and outside 2 heavy coils work as the electromagnet of the concentric shape centered by rotating shaft in patent documentation 1.The electromagnet of such concentric shape, only corresponding to direct current power input, and can not correspondence widely used alternating electromotive force in industrial circle.Therefore, need in use to prepare in addition DC power supply, easily make the cost that utilizes of electromagnet increase.
Suppose, in the electromagnet of recording in patent documentation 1, if do not use direct current power, but alternating electromotive force is inputed in each excitation winding of inside and outside 2 heavy coils, electromagnetic force zero to change significantly between peak value, in electromagnetic force, become for zero moment, due to the pretightning force of spring, armature is pushed on fixed head.Thus, although motor drives, rotor has been implemented to braking, therefore, had the tendency that is unfavorable for actual use.That is,, for the electromagnet of recording in patent documentation 1, be difficult to reduce the use cost of electromagnet.
The present invention In view of the foregoing proposes, and its object is to obtain a kind of alternating electromagnet structure that can reduce the use cost of electromagnet.
In order to solve above-mentioned problem, realize object, the alternating electromagnet structure that a kind of technical scheme of the present invention is related, is characterized in that having: discoid movable member, it can move on direction of principal axis; Yoke unshakable in one's determination, it is adjacent on direction of principal axis across main gap with described movable member; The 1st magnet exciting coil of ring-type, it is embedded in described yoke unshakable in one's determination; The 2nd magnet exciting coil of ring-type, it is embedded in described yoke unshakable in one's determination in the outside of described the 1st magnet exciting coil; And the shielded coil of ring-type, it is in the outside of described the 2nd magnet exciting coil, be embedded in described yoke unshakable in one's determination, the periphery of described shielded coil and described the 2nd magnet exciting coil is adjacent, and be configured in the position towards described main gap, to described the 1st magnet exciting coil and described the 2nd magnet exciting coil difference input AC electric power.
The effect of invention
According to the present invention, the electromagnetic force that can effectively suppress to be caused by the 1st magnet exciting coil and the 2nd magnet exciting coil is pulsed, constantly Continuous Drive movable member.Therefore, do not need in use to prepare in addition DC power supply, therefore can reduce the use cost of electromagnet.
Accompanying drawing explanation
Fig. 1 means the cutaway view of the structure of the alternating electromagnet structure that execution mode 1 is related.
Fig. 2 means the stravismus cutaway view of the structure of the alternating electromagnet structure that execution mode 1 is related.
Fig. 3 means the magnetic induction line chart of the action of the alternating electromagnet structure that execution mode 1 is related.
Fig. 4 means the electromagnetic force waveform figure of the effect of execution mode 1.
Fig. 5 means the cutaway view of the structure of the alternating electromagnet structure that execution mode 2 is related.
Fig. 6 means the figure of comparative example.
Embodiment
Below, based on accompanying drawing, describe the execution mode of alternating electromagnet structure involved in the present invention in detail.In addition, the present invention is not limited by this execution mode.
Execution mode 1
Use Fig. 1 and Fig. 2, the alternating electromagnet structure 100 related to execution mode 1 describes.Fig. 1 means the cutaway view of the structure of alternating electromagnet structure 100.Fig. 2 means the stravismus cutaway view of the structure of alternating electromagnet structure 100.
Alternating electromagnet structure 100 is accepted alternating electromotive force, produces the electromagnetic force that acts on movable member 102, and movable member 102 is moved in the direction along axle AX.For example, alternating electromagnet structure 100 acts on magnetic attraction on movable member 102, makes movable member 102 approach yoke portion 150 sides along axle AX.Specifically, alternating electromagnet structure 100 has movable member 102 and yoke portion 150.
Movable member 102 is configured in the direction along axle AX and can moves.Movable member 102 is discoid parts.Movable member 102 is such as using the formation such as dust core.Thus, can reduce the heating of the movable member 102 being caused by vortex flow loss.
Yoke portion 150 accepts alternating electromotive force, produces the electromagnetic force that acts on movable member 102.Yoke portion 150 has: yoke the 140, the 1st magnet exciting coil the 110, the 2nd magnet exciting coil 120 and shielded coil 130 unshakable in one's determination.
Yoke 140 unshakable in one's determination is adjacent in the direction along axle AX across main gap 3 with movable member 102.That is, yoke 140 unshakable in one's determination and movable member 102 are across main gap 3 in opposite directions.Yoke 140 unshakable in one's determination for example has the substantial cylindrical shape corresponding with movable member 102.Yoke 140 unshakable in one's determination is such as using the formation such as dust core.Thus, can reduce the heating of the yoke unshakable in one's determination 140 being caused by vortex flow loss.
Yoke 140 unshakable in one's determination has and prevents that residual magnetic is with gap 104 between the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120.That is, the 1st magnet exciting coil 110 in yoke 140 unshakable in one's determination and the opposite face 140b between the 2nd magnet exciting coil 120, compare with the opposite face 140a in its outside, further from movable member 102, compares, also further from movable member 102 with the opposite face 140c of its inner side.Thus, in yoke 140 unshakable in one's determination, between the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, form and prevent residual magnetic use gap 104.
The 1st magnet exciting coil 110, being positioned at the inner side of the 2nd magnet exciting coil 120 and being positioned at the position of the inner side of shielded coil 130, is embedded in yoke 140 unshakable in one's determination.The 1st magnet exciting coil 110 is to extend with ring-type around the mode of axle AX.The 1st magnet exciting coil 110 for example has the general cylindrical shape shape using axle AX as center.The 1st magnet exciting coil 110 for example for example, is formed by the winding of conductor (, metal or the intermetallic compound using aluminium or copper as main component).The part of movable member 102 sides of the 1st magnet exciting coil 110 is towards main gap 3.
The 2nd magnet exciting coil 120, being positioned at the outside of the 1st magnet exciting coil 110 and being positioned at the position of the inner side of shielded coil 130, is embedded in yoke 140 unshakable in one's determination.The 2nd magnet exciting coil 120 is to extend with ring-type around the mode of axle AX.The 2nd magnet exciting coil 120 for example has the general cylindrical shape shape using axle AX as center.The 2nd magnet exciting coil 120 for example for example, is formed by the winding of conductor (, using aluminium or copper metal or the intermetallic compound as main component).The part of movable member 102 sides of the 2nd magnet exciting coil 120 is towards main gap 3.
That is, the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 form the concentric shape using axle AX as common center.For example, the 2nd magnet exciting coil 120 is with respect to the 1st magnet exciting coil 110, while to keep the interval of constant to extend around the mode of the 1st magnet exciting coil 110.Now, the number of ampere turns of the winding of the 2nd magnet exciting coil 120 is greater than the number of ampere turns of the winding of the 1st magnet exciting coil 110.By the winding of the winding of the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, for example, carry out in series or in parallel wiring.
Shielded coil 130, being positioned at the outside of the 1st magnet exciting coil 110 and being positioned at the position in the outside of the 2nd magnet exciting coil 120, is embedded in yoke 140 unshakable in one's determination.Shielded coil 130 is to extend with ring-type around the mode of axle AX.Shielded coil 130 for example has the roughly toroidal using axle AX as center.The 2nd magnet exciting coil 120 for example for example, is formed by the parts of conductor (, using aluminium or copper metal or the intermetallic compound as main component).Shielded coil 130 is adjacent across the periphery of layer portion 160 and the 2nd magnet exciting coil 120.In addition, shielded coil 130 is configured in towards the position of main gap 3.The part of movable member 102 sides of shielded coil 130 is towards main gap 3.
Layer portion 160 is clipped between the 2nd magnet exciting coil 120 and shielded coil 130, and the 2nd magnet exciting coil 120 and shielded coil 130 are electrically insulated from each other and magnetic insulation.Layer portion 160 for example comprises at least one party in air layer and layer of non-magnetic material.
Then, use Fig. 3, the action of alternating electromagnet structure 100 is described.Fig. 3 means the magnetic induction line chart of the action of alternating electromagnet structure 100.
In alternating electromagnet structure 100, to the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 difference input AC electric power.Specifically, to the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, so that the reciprocal mode of flow direction of the electric current in the flow direction of the electric current in the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, respectively input AC electric power.For example,, after controlling the phase place of the current phasor for flowing into the 1st magnet exciting coil 110 and the difference of the phase place of the current phasor flowing into the 2nd magnet exciting coil 120 and being 180 degree, to the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 input AC electric power respectively.
Like this, as shown in Figure 3, mobile 6 of the magnetic flux that the winding generation of 5, the 2 magnet exciting coils 120 that flow of the magnetic flux that the generation of the winding of the 1st magnet exciting coil 110 is illustrated by the broken lines is illustrated by the broken lines.Owing to supplying with respectively alternating electromotive force to the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, therefore, magnetic flux flow 5 and flow 6 size and the direction of magnetic flux dynamically change.Now, because the number of ampere turns of the winding of the 2nd magnet exciting coil 120 is greater than the number of ampere turns of the winding of the 1st magnet exciting coil 110, therefore, can easily make the magnetic flux after the magnetic flux being produced by the 1st magnet exciting coil 110 and the magnetic flux being produced by the 2nd magnet exciting coil 120 are synthesized, with shielded coil 130 interlinkages.
Thus, can in shielded coil 130, respond to produce magnetic flux flowed to 5 and the change of flow 6 size and the direction of the magnetic flux electromotive force of offsetting, can make induced current flow in shielded coil 130, what shielded coil 130 can generate the magnetic flux that represented by double dot dash line flows 7.That is, the magnetic flux being produced by shielded coil 130 can be by not preventing that residual magnetic from, with gap 104, therefore, can reduce by the loss that prevents the magnetomotive force that residual magnetic causes with gap 104, thereby can effectively utilize the magnetic flux being produced by shielded coil 130.In other words, as shown in the solid line of Fig. 4, utilize the magnetic flux being produced by shielded coil 130, can effectively suppress the pulsation by the electromagnetic force of the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 generations.In addition, Fig. 4 represents respectively having the situation (situation about representing with solid line) of shielded coil and not having the result that the situation (situation about dotting) of shielded coil is carried out electromagnetic force simulation.Thus, can confirm the validity that shielded coil reduces the pulsation of electromagnetic force.
At this, suppose as shown in Figure 6, alternating electromagnet structure 1 is not had to shielded coil 130(with reference to Fig. 1) situation consider.In this case, in yoke portion 50, by the pulsation that is embedded in the electromagnetic force that the 1st magnet exciting coil 10 in yoke 40 unshakable in one's determination and the 2nd magnet exciting coil 20 produce, occurred significantly.In alternating electromagnet structure 1, if alternating electromotive force is inputed in the 1st magnet exciting coil 10 and the 2nd magnet exciting coil 20 winding separately, as shown in the dotted line of Fig. 4, the electromagnetic force being produced by the 1st magnet exciting coil 10 and the 2nd magnet exciting coil 20 zero to significantly change between peak value, in electromagnetic force, become for zero moment, cannot make magnetic attraction act on movable member 2, therefore, temporarily can not drive movable member 2, so there is the tendency that is unfavorable for actual use.Therefore, need in use to prepare in addition DC power supply, direct current power is inputed in the 1st magnet exciting coil 10 and the 2nd magnet exciting coil 20 winding separately, easily make the use cost of electromagnet increase.
Corresponding thereto, in execution mode 1, alternating electromagnet structure 100 has shielded coil 130.The periphery of shielded coil 130 and the 2nd magnet exciting coil 120 is adjacent, and is configured in towards the position of main gap 3.Thus, when to the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 difference input AC electric power, shielded coil 130 can produce the magnetic flux of the magnetic flux being produced by the 1st magnet exciting coil 110 and the size of magnetic flux being produced by the 2nd magnet exciting coil 120 and the change of direction counteracting.Its result, as shown in the solid line of Fig. 4, utilizes the magnetic flux being produced by shielded coil 130, can effectively suppress the pulsation by the electromagnetic force of the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 generations, and Continuous Drive movable member 2 constantly.Therefore, do not need in use to prepare in addition DC power supply, so can reduce the use cost of electromagnet.Thus, can provide all excellent alternating electromagnets of a kind of for example low price, small-sized, performance, quality.
Or, suppose that alternating electromagnet structure 1 is had to shielded coil 130(with reference to Fig. 1), the situation (with reference to Fig. 6) that the number of ampere turns of the winding of the number of ampere turns of the winding of the 1st magnet exciting coil 10 and the 2nd magnet exciting coil 20 is equal to each other is considered.In this case, the size of the magnetic flux being produced by the 2nd magnet exciting coil 20, is greater than the size by the magnetic flux of the 1st magnet exciting coil 10 generations, therefore, magnetic flux after the magnetic flux being produced by the 1st magnet exciting coil 10 and the magnetic flux being produced by the 2nd magnet exciting coil 20 synthesize, is difficult to and shielded coil 130 interlinkages.
Or, suppose that alternating electromagnet structure 1 is had to shielded coil 130(with reference to Fig. 1), the number of ampere turns of the winding of the 1st magnet exciting coil 10 is greater than the situation of number of ampere turns of the winding of the 2nd magnet exciting coil 20 and considers.In this case, the size of the magnetic flux being produced by the 2nd magnet exciting coil 20, compare with the size of the magnetic flux being produced by the 1st magnet exciting coil 10, relatively larger, therefore, magnetic flux after the magnetic flux being produced by the 1st magnet exciting coil 10 and the magnetic flux being produced by the 2nd magnet exciting coil 20 synthesize, is difficult to and shielded coil 130 interlinkages more.
Corresponding thereto, in execution mode 1, the number of ampere turns of the winding of the 2nd magnet exciting coil 120 is greater than the number of ampere turns of the winding of the 1st magnet exciting coil 110.In addition, to the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, so that the reciprocal mode of flow direction of the electric current in the flow direction of the electric current in the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120, respectively input AC electric power.Thus, can make the magnetic flux after the magnetic flux being produced by the 1st magnet exciting coil 110 and the magnetic flux being produced by the 2nd magnet exciting coil 120 are synthesized, easily with shielded coil 130 interlinkages.Its result, can in shielded coil 130, respond to produce magnetic flux flowed to 5 and the change of flow 6 size and the direction of the magnetic flux electromotive force of offsetting, can make induced current flow in shielded coil 130, shielded coil 130 can generate by magnetic flux flow 5 and the change of flow 6 size and the direction of the magnetic flux magnetic flux of offsetting flow 7.That is, can effectively suppress the pulsation by the electromagnetic force of the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 generations.
In addition, in execution mode 1, the 2nd magnet exciting coil 120 and at least one party of shielded coil 130 in air layer and layer of non-magnetic material are adjacent one another are, and are electrically insulated from each other and magnetic insulation.Thus, can make the magnetic flux after the magnetic flux being produced by the 1st magnet exciting coil 110 and the magnetic flux being produced by the 2nd magnet exciting coil 120 are synthesized, be difficult to by between the 2nd magnet exciting coil 120 and shielded coil 130, thereby can make the magnetic flux after the magnetic flux being produced by the 1st magnet exciting coil 110 and the magnetic flux being produced by the 2nd magnet exciting coil 120 are synthesized, (for example, without leaking) and shielded coil 130 interlinkages effectively.
In addition, in execution mode 1, yoke 140 unshakable in one's determination has and prevents that residual magnetic is with gap 104 between the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120.The open failure that can suppress thus, the electromagnet that the residual magnetic by yoke 140 unshakable in one's determination causes.On the other hand, the magnetic flux being produced by shielded coil 130 is difficult to by preventing that residual magnetic use gap 104(is with reference to Fig. 3), therefore, can effectively utilize the magnetic flux being produced by shielded coil 130.That is, the open failure of the electromagnet that the residual magnetic by yoke 140 unshakable in one's determination causes can be suppressed, and the pulsation of the electromagnetic force that produced by the 1st magnet exciting coil 110 and the 2nd magnet exciting coil 120 can be effectively suppressed.
In addition, the part towards main gap 3 in the part towards main gap 3 in the 1st magnet exciting coil 110, the 2nd magnet exciting coil 120 and the part towards main gap 3 in shielded coil 130, can utilize respectively the nonmagnetic substances such as epoxy material to encapsulate its surface.Thus, can protect respectively the part towards main gap 3 in the part towards main gap 3 in the 1st magnet exciting coil 110, the 2nd magnet exciting coil 120 and the part towards main gap 3 in shielded coil 130, in order to avoid oxidation etc.
Execution mode 2
Then, the related alternating electromagnet structure 200 of execution mode 2 is described.Below, centered by the part different from execution mode 1, describe.
In alternating electromagnet structure 200, movable member 202 and yoke portion 250 form respectively hollow structure.Specifically, movable member 202 has the opening 202d using axle AX as center.The yoke unshakable in one's determination 240 of yoke portion 250 has the through hole 240d using axle AX as center.The opening 202d of movable member 202 is corresponding with the through hole 240d of yoke 240 unshakable in one's determination.Thus, can be configured to the rotating shaft of slewing is passed to opening 202d and through hole 240d, and movable member 202 and rotating shaft are together rotated, alternating electromagnet can be constructed to 200 as electromagnetic brake, for the braking purposes of slewing.
Industrial applicibility
As mentioned above, alternating electromagnet structure involved in the present invention is applicable to electromagnetic brake.
The explanation of label
1,100,200 alternating electromagnet structures
2,102,202 movable members
3 main gaps
10,110 the 1st magnet exciting coils
20,120 the 2nd magnet exciting coils
40,140,240 yokes unshakable in one's determination
50,150,250 yoke portions
104 prevent that residual magnetic from using gap
130 shielded coils
160 layers of portion
Claims (3)
1. an alternating electromagnet is constructed, and it is characterized in that having:
Discoid movable member, it can move on direction of principal axis;
Yoke unshakable in one's determination, it is adjacent on direction of principal axis across main gap with described movable member;
The 1st magnet exciting coil of ring-type, it is embedded in described yoke unshakable in one's determination;
The 2nd magnet exciting coil of ring-type, it is embedded in described yoke unshakable in one's determination in the outside of described the 1st magnet exciting coil; And
The shielded coil of ring-type, it is embedded in described yoke unshakable in one's determination in the outside of described the 2nd magnet exciting coil,
The periphery of described shielded coil and described the 2nd magnet exciting coil is adjacent, and is configured in the position towards described main gap,
To described the 1st magnet exciting coil and described the 2nd magnet exciting coil difference input AC electric power,
Described yoke unshakable in one's determination has and prevents that residual magnetic is with gap between described the 1st magnet exciting coil and described the 2nd magnet exciting coil,
Described shielded coil produces the magnetic flux that meets following condition: not by the described residual magnetic use gap that prevents, and, by the magnetic flux being produced by described the 1st magnet exciting coil and by the size of magnetic flux and the change of direction of described the 2nd magnet exciting coil generation, offset.
2. alternating electromagnet structure according to claim 1, is characterized in that,
The number of ampere turns of the winding of described the 2nd magnet exciting coil is greater than the number of ampere turns of the winding of described the 1st magnet exciting coil,
To described the 1st magnet exciting coil and described the 2nd magnet exciting coil, so that the reciprocal mode of flow direction of the electric current in the flow direction of the electric current in described the 1st magnet exciting coil and described the 2nd magnet exciting coil, respectively input AC electric power.
3. alternating electromagnet structure according to claim 1, is characterized in that,
Described the 2nd magnet exciting coil and at least one party of described shielded coil in air layer and layer of non-magnetic material are adjacent one another are, and are electrically insulated from each other and magnetic insulation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/077370 WO2013080274A1 (en) | 2011-11-28 | 2011-11-28 | Ac electromagnet structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103229255A CN103229255A (en) | 2013-07-31 |
| CN103229255B true CN103229255B (en) | 2014-11-19 |
Family
ID=47277862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180015918.8A Expired - Fee Related CN103229255B (en) | 2011-11-28 | 2011-11-28 | Ac electromagnet structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5073122B1 (en) |
| CN (1) | CN103229255B (en) |
| WO (1) | WO2013080274A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4324026Y1 (en) * | 1967-02-07 | 1968-10-09 | ||
| JPS5347553Y2 (en) * | 1971-08-25 | 1978-11-14 | ||
| JPS60170167A (en) * | 1984-02-13 | 1985-09-03 | Japan Storage Battery Co Ltd | Manufacturing method for alkaline cell electrode |
| JP2588824Y2 (en) * | 1993-03-17 | 1999-01-20 | 株式会社三協精機製作所 | Motor with brake |
-
2011
- 2011-11-28 WO PCT/JP2011/077370 patent/WO2013080274A1/en active Application Filing
- 2011-11-28 JP JP2012517599A patent/JP5073122B1/en not_active Expired - Fee Related
- 2011-11-28 CN CN201180015918.8A patent/CN103229255B/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| JP实开平6-74066U 1994.10.18 * |
| JP实开昭48-32860U 1973.04.20 * |
| JP昭43-24026B1 1968.10.17 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103229255A (en) | 2013-07-31 |
| JP5073122B1 (en) | 2012-11-14 |
| JPWO2013080274A1 (en) | 2015-04-27 |
| WO2013080274A1 (en) | 2013-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5889340B2 (en) | Rotor of embedded permanent magnet electric motor, electric motor provided with the rotor, compressor provided with the electric motor, and air conditioner provided with the compressor | |
| JP5433963B2 (en) | Linear actuator | |
| JP2019140894A (en) | Magnet unit and dynamo-electric machine drive system | |
| JP6139007B2 (en) | Rotating electrical machine | |
| US11201529B2 (en) | Rotary electric machine | |
| JP5365074B2 (en) | Axial gap type rotating electrical machine | |
| EP3490120B1 (en) | Rotary electric machine equipped with magnetic flux variable mechanism | |
| JP2017169280A (en) | Rotary electric machine | |
| JP2011078202A (en) | Axial gap motor | |
| JP6260994B2 (en) | Axial gap type motor | |
| WO2020218441A1 (en) | Rotating electric machine | |
| CN103229255B (en) | Ac electromagnet structure | |
| JP6177865B2 (en) | Separately-excited electric machine having at least one primary magnetic circuit and at least two secondary magnetic circuits | |
| JP2006246622A (en) | Stator, rotating electric machine and core therefor | |
| JP5151183B2 (en) | Axial gap type rotating electric machine and compressor | |
| CN108861982A (en) | Magnetic elevator drive member and manufacturing method | |
| JP2016059099A (en) | Rotary electric machine | |
| TW200711264A (en) | Axial type motor | |
| JP4323941B2 (en) | Exciter, field machine, and synchronous machine using the same | |
| JP2018516532A (en) | Single pole composite type asynchronous motor | |
| JP2016201978A (en) | Power storage device | |
| JP2011211825A (en) | Dc motor and valve opening/closing device | |
| US20230396126A1 (en) | Rotator | |
| JP2017051023A (en) | Rotary electric machine | |
| JP6476920B2 (en) | Rotating electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20181128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |