WO2006077709A1 - 電機子、モータ及び圧縮機並びにそれらの製造方法 - Google Patents
電機子、モータ及び圧縮機並びにそれらの製造方法 Download PDFInfo
- Publication number
- WO2006077709A1 WO2006077709A1 PCT/JP2005/023256 JP2005023256W WO2006077709A1 WO 2006077709 A1 WO2006077709 A1 WO 2006077709A1 JP 2005023256 W JP2005023256 W JP 2005023256W WO 2006077709 A1 WO2006077709 A1 WO 2006077709A1
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- WIPO (PCT)
- Prior art keywords
- magnetic
- plate
- magnetic body
- core
- bodies
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/06—Embedding prefabricated windings in machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
Definitions
- the present invention relates to an armature, a motor, a compressor, and methods for manufacturing the same, and more particularly to a technique for covering a magnetic core with a magnetic material.
- An axial gap type motor includes a stator that generates a magnetic flux along a rotation axis, and a rotor that can rotate around the rotation axis.
- the stator has a winding wound around a rotation axis, and a current is passed through the winding to generate a magnetic flux.
- the rotor is arranged to face the stator via a gap in the direction of the rotation axis.
- the rotor is provided with a magnet facing the stator. The rotor rotates by the magnetic flux generated in the stator acting on the rotor.
- Patent Document 1 Japanese Patent Laid-Open No. 10-164779
- Patent Document 2 Japanese Patent Laid-Open No. 10-210720
- Patent Document 1 the aspect in which the area of the end surface on the rotor side is larger than the cross-sectional area at the position where the winding is wound is, for example, Patent Document 1 and It is disclosed in Patent Document 2. According to this aspect, most of the magnetic flux generated in the rotor is guided to the magnetic core, and therefore, most of the magnetic flux is linked to the winding line, and the driving efficiency of the motor is increased.
- Patent Document 1 and Patent Document 2 described above even if there is a deviation, it is difficult to wind the winding with respect to the magnetic core. It is also difficult to fit a previously wound wire into the magnetic core.
- the present invention has been made in view of the above-described circumstances, and an object thereof is to easily arrange the winding wire around the magnetic core.
- a first aspect of the method of manufacturing an armature according to the present invention is as follows.
- the negative direction side cover also covers the magnetic core with the first magnetic body (7111 to 7122; 731 to 736).
- the area force of the surface (7111a to 7122a; 731a to 736a) opposite to the one magnetic core on which the first magnetic body is disposed is the one first magnetic body of the one magnetic core. It is larger than the area of the body side surface (11 la to l 14a, 121a to 124a, 131a to 134a; 31a to 36a).
- a second aspect of the armature manufacturing method is the first aspect of the armature manufacturing method, wherein the core (631; 641) includes a plurality of magnetic cores (111 to 114, 121-124, 131-134; 31-36) are disposed on the surface (61a; 61a), and in the step (b), the first magnetic body (7111-7212; 731- 736) and any one of the first magnetic bodies covered on one of the magnetic cores, the one first magnetic body has a gap ( 711 lb-7212b; 731b-736b).
- a third aspect of the armature manufacturing method according to the present invention is the second aspect of the armature manufacturing method, wherein the core (631; 641) has a plurality of the magnetic cores (111 to 114, 121-124, 131-134; 31-36) are annularly arranged on the surface (61a; 61a), and in the step (b), a plurality of the first magnetic bodies are arranged annularly on a magnetic plate ( 71; 73) is placed on the magnetic core so that the first magnetic body (7111 to 7122; 731 to 736) covers the V of the magnetic core and also shifts, and the gap between the adjacent first magnetic bodies Even in the deviation of (7111b to 7122b; 731b to 746b), the outer shell extends from the inner peripheral side to the outer peripheral side of the magnetic plate.
- a fourth aspect of the armature manufacturing method includes: (a) a magnetic plate (71; a plurality of first magnetic bodies (711 1 to 7122; 731 to 736) arranged annularly; 73) and a plurality of magnetic cores (111 to 114, 121 to 124, 131 to 134; 31 to 36), and in any one of the first magnetic bodies, the surface of the one first magnetic body Above, one direction (91) and the other side in front
- a step of disposing a winding (A11 to A13, B11 to B13; A31 to A36) in the magnetic core along the surface with respect to the core from which the magnetic recording core protrudes, and the one first magnetic body includes: The area of the surface opposite to the magnetic core (711 la to 7122a; 731a to 736a) is the cross-section (11 la to 14a, 121a to 121a to the first magnetic body side of the one magnetic core.
- any one of the other first magnetic bodies larger than the area of 31a to 36a has a gap (711 lb to 7122b; 731b to 736b) between them, and in the annular direction Therefore, in any of the gaps between the adjacent first magnetic bodies, the outline extends from the inner peripheral side to the outer peripheral side of the magnetic plate.
- a fifth aspect of the armature manufacturing method according to the present invention is the fourth aspect of the armature manufacturing method, wherein (b) after the step (a), the one-way (91 ) Is further provided with a step of placing the plate (61; 611) on the magnetic core from the opposite side.
- a sixth aspect of the method of manufacturing an armature according to the present invention is the fifth aspect of the method of manufacturing the armature, wherein the plate includes a plurality of second magnetic bodies (7411 to 7422).
- the second magnetic body is covered with the above-mentioned step (b), and the magnetic field (111 to 114, 121 to 124, 131 to 134)!
- the surface (741 la to 7422a) opposite to the one magnetic core covered by the second magnetic body is a surface (111b to 114b) on the one second magnetic body side of the one magnetic core.
- 121b-124b, 131b-134b) Ri is also large.
- a seventh aspect of the armature manufacturing method according to the present invention is the sixth aspect of the armature manufacturing method, wherein any of the outlines of the second magnetic plate (74) is provided. However, it is inclined with respect to the radial direction viewed from the central force of the second magnetic plate, and extends in the vertical direction.
- a first aspect of the motor manufacturing method according to the present invention includes the sixth or seventh aspect of the armature manufacturing method and the rotating shaft (92) along the one direction (91).
- a magnet (611 1 to 6114) that is rotatable as a center and has a plurality of magnetic poles facing the second magnetic body (7411 to 7422) is opposed to the second magnetic body from the side opposite to the magnetic core. Process to arrange With.
- a second aspect of the motor manufacturing method according to the present invention is the first aspect of the motor manufacturing method, wherein the second magnetic body (7411 to 7422) is used for any one of the magnetic poles.
- the third magnetic body has gaps (751b to 754b) between any of the other third magnetic bodies.
- An eighth aspect of the armature manufacturing method according to the present invention is the fourth aspect of the armature manufacturing method, wherein (b) the magnetic core (111 to 114, 121 to 124, 131 to 134; 31-36) further comprising a step of arranging the plate (611) on the opposite side to the one direction (91) so as to be rotatable about the rotation axis (92) along the one direction.
- a ninth aspect of the armature manufacturing method according to the present invention is any one of the first to third, fifth and eighth aspects of the armature manufacturing method, wherein the plate (61; 611) is made of a magnetic material.
- a tenth aspect of the armature manufacturing method according to the present invention is any one of the third to seventh, eighth, and ninth aspects of the armature manufacturing method,
- the deviation of the outline of the plate (71; 73) extends in a direction inclined with respect to the radial direction viewed from the center of the magnetic plate.
- a third aspect of the method for manufacturing a motor according to the present invention is the first or second aspect of the method for manufacturing a motor, and any of the outlines of the magnetic plate (71; 73). However, it is inclined with respect to the radial direction viewed from the central force of the magnetic body plate and extends in the opposite direction.
- a fourth aspect of the method for manufacturing a motor according to the present invention is any one of the second to seventh and eighth to tenth aspects of the armature manufacturing method, or the motor manufacturing method. Any one of the first to third aspects, wherein the first magnetic body (7111) is rotatable about a rotation axis (92; 92) along the one direction (91). ⁇ 7122; 731-736), and a step of disposing a magnet having a plurality of magnetic poles (621-624; 621-624) facing the first magnetic body from the side opposite to the magnetic core; Prepare.
- a fifth aspect of the motor manufacturing method according to the present invention is the fourth aspect of the motor manufacturing method.
- the fourth magnetic body may be opposed to the first magnetic body from the first magnetic body (7111 to 7122; 731 to 736) side to the one magnetic pole. (721 to 724; 721 to 724) is further provided, and for any one of the fourth magnetic bodies, the one fourth magnetic body is any of the other fourth magnetic bodies, There are gaps (721b to 724b; 721b to 724b) between them.
- a compressor manufacturing method according to the present invention is characterized in that the motor manufactured by any one of the first to sixth aspects of the motor manufacturing method is mounted.
- a first aspect of the armature according to the present invention includes a magnetic plate (71; 73) having a plurality of first magnetic bodies (7 111 to 7122; 731 to 736) arranged in an annular shape, and a magnetic core.
- the one magnetic core protrudes in the opposite direction to the one direction (91) on the surface of the one first magnetic body, and the one magnetic core covered by the one first magnetic body.
- the area of the opposite surface (7111a to 7122a; 731a to 736a) has a cross section (11la to 14a, 121a to 124a, 131a to 134a;
- the one first magnetic body larger than the area of 31a to 36a) has an air gap (711 lb to 7122b; 73 lb to 736b) between each of the other first magnetic bodies, and is annular.
- the ⁇ deviation of the air gap also extends to the outer peripheral side thereof outer from the inner peripheral side of the magnetic plate, the ⁇ is disposed along connexion the core to the surface.
- a second aspect of the armature according to the present invention is the first aspect of the armature, wherein the magnetic core is placed with a force on the opposite side to the one direction (91) (61; 611).
- a third aspect of the armature that is useful in the present invention is the second aspect of the armature, wherein the plate is a second one in which a plurality of second magnetic bodies (7411 to 7422) are annularly arranged.
- any one of the second magnetic bodies has a gap (7411b to 7422b) between each of the other second magnetic bodies.
- the gap between the second magnetic bodies adjacent to each other in the annular direction extends from the inner peripheral side to the outer peripheral side of the second magnetic plate, and the magnetic core (111 To 114, 121 to 124, 131 to 134), the second magnetic body plate is disposed so that the second magnetic body is covered with the second magnetic body.
- the area of the surface opposite to the one magnetic core (741 la to 7422a) covered by the second magnetic body of the first magnetic core is the surface on the side of the second magnetic body of the one magnetic core (11 lb to l Greater than the area of 14b, 121b-124b, 131b-134b).
- a fourth aspect of the armature that is useful for the present invention is the third aspect of the armature, wherein the outer shell! And the deviation are from the center of the second magnetic plate (74). Inclined with respect to the seen radial direction!
- a first aspect of the motor according to the present invention includes a third or fourth aspect of the armature and a magnet (6111) that is rotatable about the rotation axis (92) along the one direction (91). 6114), and the magnet has a force opposite to the magnetic core and is disposed to face the second magnetic body, and has a plurality of magnetic poles facing the second magnetic body.
- a second aspect of the motor that is useful for the present invention is the first aspect of the motor, further comprising a plurality of third magnetic bodies (751 to 754), and for any one of the magnetic poles,
- the third magnetic body (751 to 754) is put on the one magnetic pole from the second magnetic body (7411 to 7422) side so as to face the second magnetic body.
- the one third magnetic body has a gap (75 lb to 754b) between each of the other third magnetic bodies.
- a fifth aspect of the armature according to the present invention is the first aspect of the armature, wherein the magnetic core
- a plate disposed so as to be rotatable about the rotation axis (92) along the one direction (611) is further provided.
- a sixth aspect of the armature according to the present invention is the second or fifth aspect of the armature, wherein the plate (611) is a magnetic material.
- a seventh aspect of the armature according to the present invention includes a plurality of magnetic cores (111 to 61) projecting in one direction on the surface (61a; 61a) of the plate (61; 61) and mounted in an annular shape. 114, 121-124, 131-134; 31-36), a magnetic plate (71; 73) having a plurality of first magnetic bodies (7111-7212; 731-736) arranged in a ring, and a winding (A11 to A13, 11 to: 613; 831 to 836), the winding is disposed on the magnetic core along the surface, and the magnetic plate is the first in any of the magnetic cores.
- the magnetic core from the one direction side so as to cover the magnetic body.
- the area force of the surface (7111a to 7122a; 731a to 736a) opposite to the one magnetic core covered by the first magnetic body is the one of the one magnetic core.
- the one first magnetic body larger than the area of the surface (11 la to l 14a, 121a to 124a, 131a to 134a; 31a to 36a) on the first magnetic body side is the other first magnetic body.
- the gaps (7111b to 7122b; 731b to 736b) are provided between them, and any of the gaps between the adjacent first magnetic bodies has an outer periphery on the inner peripheral side of the magnetic plate. To the outer periphery.
- An eighth aspect of the armature that is useful in the present invention is the seventh aspect of the armature, wherein the outer shell! The deviation also extends in a direction inclined with respect to the radial direction viewed from the center of the magnetic plate (71; 73).
- a third aspect of the motor according to the present invention is the same as one of the first to eighth aspects of the armature, or the first or second aspect of the motor, and the one direction (91 ), And magnets (621 to 624; 621 to 624) that can rotate about a rotation axis (92; 92) along the axis).
- the magnet has a force opposite to the magnetic core and the first magnetic body ( 7111-7212; 731-736) and a plurality of magnetic poles opposed to the first magnetic body.
- a fourth aspect of the motor that is useful in the present invention is the third aspect of the motor, further comprising a plurality of fourth magnetic bodies (721 to 724; 721-724), Even if it is connected to the magnetic pole, the first magnetic body (7111 to 7122; 731 to 736) has one fourth magnetic body facing the first magnetic body from the side of the first magnetic body (7111 to 7122; 731 to 736). In any one of the four magnetic bodies, the one fourth magnetic body has a gap (721b to 724b; 721b) between the other four magnetic bodies. -724b).
- a fifth aspect of the motor that is useful for the present invention is that a plurality of magnetic cores (111 to 114, 121) projecting in one direction on the surface (61a; 61a) of the plate (61; 61) are mounted. -124, 131-134; 31-36), a winding (A11-A13, B11-: B13; A31-A36), and a plurality of first magnetic bodies (711 1-7122; 731-736) A stator (63; 64), a magnet (621 to 624) rotatable about a rotation axis (92) along a direction (91) in which the magnetic core protrudes, and a plurality of second magnetic bodies (721 ⁇ 724), the winding is disposed on the magnetic core along the surface, and the first magnetic body is covered from the one direction side on any of the magnetic cores.
- the area force of the surface (7111a to 7122a; 731a to 736a) on the opposite side to the one magnetic core that it covers covers the one first of the one magnetic core.
- the one first magnetic body larger than the area of the surface on the magnetic body side (11 la to l 14a, 121a to 124a, 131a to 134a; 31a to 36a) is the same as the other first magnetic body.
- the one second magnetic body covers the one magnetic pole on the side of the first magnetic body facing the first magnetic body. Any of the other second magnetic bodies has gaps (721b to 724b) therebetween.
- a sixth aspect of the motor according to the present invention is the fifth aspect of the motor, wherein the stator (63; 64) includes the plurality (7111 to 7122; 731) of the first magnetic bodies. ⁇ 736) have a first magnetic plate (71; 73) arranged in an annular shape, and between the adjacent first magnetic bodies (711 lb to 7122b; 731b to 736b)! Even in this case, the outer shell extends from the inner peripheral side to the outer peripheral side of the first magnetic plate.
- a seventh aspect of the motor according to the present invention is the sixth aspect of the motor, wherein any force of the outer shell of the stator (63; 64) is a force of the first magnetic plate (71 ; 73) Central force Inclined with respect to the radial direction seen and extended in the opposite direction.
- An eighth aspect of the motor that is conducive to this invention is the sixth or seventh aspect of the motor, wherein the rotor is formed by annularly arranging the plurality of the second magnetic bodies (721 to 724).
- the second magnetic body has a second magnetic body plate (72) arranged and included in any of the gaps (721b to 724b) between the adjacent second magnetic bodies. It extends from the inner periphery of the plate to the outer periphery.
- a ninth aspect of the motor that can be applied to the present invention is the eighth aspect of the motor, wherein the outer periphery of the rotor is displaced by the second magnetic plate (72 ) Tilted with respect to the radial direction as viewed from the center of the
- a tenth aspect of the motor that is useful in the present invention is the eighth or ninth aspect of the motor, wherein the outer diameter (Rso; Rso) of the first magnetic plate (71; 73) and The absolute value (
- An eleventh aspect of the motor that is useful in the present invention is the eighth or ninth aspect of the motor, wherein the outer diameter (Rso; Rso) of the first magnetic plate (71; 73)
- ) of the difference from the outer diameter (Rro; Rro) of the second magnetic plate (72; 72) is the same as that of the second magnetic plate. Less than the distance (t2; t2) from the surface on the first magnetic body side to the surface on the opposite side of the magnet from the second magnetic body.
- a twelfth aspect of the motor according to the present invention is any one of the eighth to eleventh aspects of the motor, wherein the inner diameter (1) of the first magnetic plate (71; 73) is ⁇ ; 1 ⁇ ) and the absolute value (
- a thirteenth aspect of the motor according to the present invention is any one of the eighth to eleventh aspects of the motor, wherein the inner diameter (1) of the first magnetic plate (71; 73) is ⁇ ; 1 ⁇ ) and the absolute value (
- a fourteenth aspect of the motor according to the present invention is any one of the fifth to thirteenth aspects of the motor, wherein the adjacent first magnetic bodies (7111 to 7122; 731 to 736)
- the width (tssl; tssl) of the gap (711 lb to 7122b; 731b to 736b) between the first magnetic body and the second magnetic body is the distance between the surfaces closer to each other ( ⁇ ; ⁇ ) It is larger than 2 times.
- a fifteenth aspect of the motor according to the present invention is any one of the fifth to fourteenth aspects of the motor, and is between the adjacent second magnetic bodies (721 to 724).
- the width (trsl) of the gaps (721b to 724b) is larger than twice the distance ( ⁇ ) between the surfaces of the first magnetic body and the second magnetic body that are close to each other.
- a sixteenth aspect of the motor according to the present invention is any one of the fifth to fifteenth aspects of the motor, in which the magnets (621 to 624; 621 to 624) are moved in the direction. Thickness (tm; tm) F Distance between the first magnetic bodies (7111 to 7122; 731 to 736) and the second magnetic bodies (721 to 724; 721 to 724) closer to each other ( ⁇ ; ⁇ ) Larger than twice.
- a compressor according to the present invention includes any one of first to sixteenth aspects of a motor.
- the winding is arranged on the magnetic core before the first magnetic body is put on the magnetic core, the winding is easy to arrange. Also, since the area of the surface of the first magnetic body opposite to the magnetic core is larger than the area of the surface of the magnetic core on the first magnetic body side, much of the magnetic flux can be led to the magnetic core.
- the magnetic resistance increases in the air gap, the magnetic flux is short-circuited from one first magnetic body to another first magnetic body. Flow is reduced.
- an integrally molded magnetic plate can be adopted. Just cover the magnetic core! Therefore, the manufacturing process and the structure of the armature are simplified.
- the wire is disposed before the plate is disposed. Because it is placed on the magnetic core, it is easy to place the shoreline. Since the area of the surface opposite to the magnetic core of the first magnetic body is larger than the area of the cross section of the magnetic core on the first magnetic body side, much of the magnetic flux can be guided to the magnetic core. In addition, since the magnetic resistance increases in the air gap, it is possible to reduce the flow of magnetic flux short-circuited from one first magnetic body to another first magnetic body.
- the area of the surface opposite to the magnetic core of the second magnetic body is the second area of the magnetic core. Since it is larger than the area of the surface on the magnetic body side, much of the magnetic flux can be guided to the magnetic core. In addition, since the magnetic resistance increases in the air gap, it is possible to reduce the flow of magnetic flux short-circuited from one second magnetic body to another second magnetic body.
- the cogging torque is reduced.
- most of the magnetic flux flowing through the rotor force is guided to the magnetic core via the second magnetic body. Therefore, the magnetic flux can be efficiently linked to the winding.
- the third magnetic body force having one magnetic flux is used. A short circuit to the magnetic material is reduced.
- much of the magnetic flux flowing from the magnet casing is guided to the magnetic core via the second magnetic body, and conversely, much of the magnetic flux flowing through the armature force is guided to the magnet via the third magnetic body. Therefore, the driving efficiency of the motor is improved.
- the driven part can be easily driven by connecting the driven part to the plate.
- the plate functions as a yoke. Therefore, when the armature manufactured by the manufacturing method is applied to a motor, the driving efficiency or driving output of the motor is increased.
- the cogging torque is reduced.
- the magnetic resistance increases in the air gap, so that the fourth magnetic body force with one magnetic flux is the other fourth. A short circuit to the magnetic material is reduced.
- most of the magnetic flux that flows from the magnet case is guided to the magnetic core through the first magnetic body, and conversely, much of the magnetic flux that flows through the armature force is guided to the magnet through the fourth magnetic body. Therefore, the driving efficiency of the motor is improved.
- the compressor manufacturing method or the compressor according to the present invention the refrigerant or the like can be efficiently compressed.
- the area of the surface opposite to the magnetic core of the first magnetic body is larger than the area of the cross section of the magnetic core on the first magnetic body side.
- the magnetic plate can be integrally molded, for example. This simplifies the armature manufacturing process and its structure.
- the first magnetic body is covered with the magnetic core, and the area of the first magnetic body opposite to the magnetic core is the first core of the magnetic core. Since it is larger than the area on the magnetic material side, at least the side force covered with the first magnetic material does not protrude or fall off. Since the magnetic resistance also increases in the air gap in the gap, the magnetic flux in one of the stator and the rotor can be reduced from being short-circuited to the other magnetic body.
- the first magnetic body can guide most of the magnetic flux that flows through the magnet force to the magnetic core, while the second magnetic body can guide much of the magnetic flux that flows through the stator force to the magnet. Therefore, the driving efficiency of the motor is improved.
- the first magnetic plate can be formed, for example, as a single piece, so that the structure of the armature is simplified.
- the cogging torque is reduced.
- the second magnetic plate can be formed, for example, as a single piece, so that the structure of the rotor is simplified.
- the magnetic flux generated from the magnetic core is prevented from flowing in a short circuit in the stator via the outer peripheral side of the first magnetic plate.
- the magnetic flux generated from the magnet is prevented from flowing in a short circuit in the rotor via the outer peripheral side of the second magnetic plate.
- the magnetic flux generated from the magnetic core is prevented from flowing in a short circuit in the stator via the inner peripheral side of the first magnetic plate.
- the magnetic flux generated from the magnet is prevented from flowing in a short circuit in the rotor via the inner peripheral side of the second magnetic plate.
- the magnetic flux is prevented from being short-circuited from one of the first magnetic bodies to the other through the gap between the adjacent first magnetic bodies.
- the magnetic flux is prevented from being short-circuited from one of the second magnetic bodies to the other via the gap between the adjacent second magnetic bodies.
- the magnetic flux generated from the magnet This prevents a short circuit between the magnetic poles of the same magnet via the surface.
- FIG. 1 is a perspective view conceptually showing a stator 63 described in the first embodiment.
- FIG. 2 is a perspective view conceptually showing a motor described in the second embodiment.
- FIG. 3 is a side view conceptually showing the motor.
- FIG. 4 is a perspective view conceptually showing a stator 63 described in a third embodiment.
- FIG. 5 is a side view conceptually showing the motor.
- FIG. 6 is a plan view conceptually showing a magnetic plate 73.
- FIG. 7 is a plan view conceptually showing a magnetic plate 72.
- FIG. 8 is a plan view conceptually showing a magnetic plate 72.
- FIG. 9 is a perspective view conceptually showing a stator 65 described in the fourth embodiment.
- FIG. 10 is a perspective view conceptually showing a motor.
- FIG. 11 is a perspective view conceptually showing a motor described in a fifth embodiment.
- FIG. 12 is a side view conceptually showing the motor.
- FIG. 13 is a perspective view conceptually showing a stator 66 described in the sixth embodiment.
- FIG. 14 is a side view conceptually showing the motor.
- FIG. 15 is a perspective view conceptually showing a pig iron core.
- FIG. 16 is a perspective view conceptually showing a laminated iron core.
- FIG. 17 is a sectional view conceptually showing a compressor.
- FIG. 18 is a sectional view conceptually showing a compressor.
- FIG. 19 is a sectional view conceptually showing the compressor.
- FIG. 1 conceptually shows a stator 63 according to the present embodiment. However, it is disassembled along a predetermined direction 91.
- the stator 63 includes a core 631, windings A11 to A13, B11 to B13, and a magnetic plate 71.
- the core 631 includes a plate 61 and a plurality of magnetic poles, lll to 114, 121 to 124, 131 to 134.
- the plate 61 has a surface 61a and is perpendicular to the predetermined direction 91.
- the plurality of magnetic cores 111 to 114, 121 to 124, and 131 to 134 are arranged in an annular shape on the surface 61a in this order, and all of them protrude along a predetermined direction 91.
- the core 631 force S and further steps 115, 116, 125, 126, 135, 136 are shown as the force ⁇ .
- the step 115 is placed between the magnetic core 111 and the magnetic core 112, and the step 116 is placed between the magnetic core 112 and the magnetic core 113;
- the step portion 125 is placed between the magnetic core 121 and the magnetic core 122, and the step portion 126 is placed between the magnetic core 122 and the magnetic core 123;
- the step portion 135 is located between the magnetic core 131 and the magnetic core 1 32, and the step portion 136 is located between the magnetic core 132 and the magnetic core 133.
- Steps 116, 125, 126, 135, and 136 Even if they are out of contact with surface 61a, the top surfaces 115a, 116a, 125a, 126a, 135a, and 136a of J are magnetic cores. 111-114, 121-124, 131-134 opposite to the surface 61a ⁇ J top surface ll la-114a, 121a-124a, 131a-l 34a than the plate 61 [close!
- ⁇ wires ⁇ 11 to ⁇ 13 and ⁇ 11 to ⁇ 13 are arranged in the following manner.
- the winding wire Al l is arranged so as to surround the magnetic cores 111 to 113, and the winding wire A12 is arranged to surround the magnetic cores 121 to 12.
- the winding A13 is arranged surrounding the magnetic cores 131 to 133.
- the shorelines A11 to A13 are all arranged along the surface 61a.
- the winding wire B11 is arranged so as to surround the magnetic cores 123, 124, 131, and the winding wire B12 is arranged around the magnetic core 133,
- the winding B13 is arranged by surrounding the magnetic cores 113, 114, and 121 together.
- each of the winding wires A11 to A13 may be wound around the magnetic core in the manner described above, or each of the winding wires A11 to A13 wound in advance may be wound in the manner described above. It may be inserted into the magnetic core.
- Figure 1 shows the latter case.
- Minato Line B11 ⁇ B13 Is the same.
- the winding lines A11 to A13 and B11 to B13 may be individually surrounded by an insulator. According to this, deformation and breakage of the shorelines A11 to A13 and B11 to B13 due to the stress applied to the shorelines A11 to A13 and B11 to B13 are avoided. Insulation force A11-A13, B11-: Insulation between B13 and the magnetic cores 111-114, 121-124, 131-134, and each other is ensured.
- a round wire or a rectangular wire can be used for the saddle wires A11 to A13 and B11 to B13.
- the space factor of the wire is improved compared to the round wire, which is particularly desirable in that the stator can be downsized. Furthermore, it is desirable in that the influence of the skin effect is reduced.
- the windings A11 to A13, B11 to B13 are arranged on the core 631, the opposite side of the plate 61 of the magnetic cores 111 to 114, 121 to 124, 131 to 134 having the same shape in the axial direction is opened. Therefore, the winding lines A11 to A13 and B11 to B13 can be easily arranged.
- the wires A11 to A13, B11 to which have been wound in a predetermined shape can be easily inserted into the magnetic cores 111 to 114, 121 to 124, 131 to 134, and flat wires can be used. become.
- the magnetic plate 71 is arranged in the following manner with respect to the core 631 on which the windings A11 to A13 and B11 to B13 are arranged.
- the magnetic plate 71 is fixed to the core 631, for example, but since the core 631 has a larger mass than the magnetic plate 71, the stability is good.
- the magnetic plate 71 has a plurality of first magnetic bodies 7111 to 7122 arranged in an annular shape in this order.
- the one first magnetic body is Any of the other first magnetic bodies has gaps 7111b to 7122b therebetween.
- the first magnetic body 7111 has a gap 7111b between the first magnetic body 7111 and the adjacent first magnetic body 7112.
- gaps 7112b to 7122b are provided between the first magnetic bodies 7112 to 7122.
- FIG. 1 shows the case where the outer force of each of the gaps 7111b to 7122b extends along the radial direction viewed from the center of the magnetic plate 71.
- the magnetic plate 71 is placed on the magnetic cores 111 to 114, 121 to 124, 131 to 134 from the side opposite to the surface 61a. At this time, the first magnetic material 7111-7114, 7115-7118, 7119-7212 force ⁇ Cover the magnetic cores 111-114, 121-124, 131-134, respectively.
- One of the first magnetic bodies 7111 to 7114, 7115 to 7118, 7119 to 7122 is the power of the magnetic core 111-114, 121-124, 131- Area force of surface 7111a to 7114a, 7115a to 7118a, 7119a to 7122a on opposite side of J is larger than the area of the top surface 11 la to 114a, 121a to 124a, 131a to 134a of the one magnetic core.
- FIG. 2 and FIG. 3 also show the rotor force. This will be described in the second embodiment.
- the first magnetic bodies 7111 to 7114, 7115-71 18, 7119 to 7122 are magnetized 111 to 114, 121 to 124, 131 to 134 Wires A11-A13, B11-: Since B13 is arranged in the magnetic cores 111-114, 121-124, 131-134, the wires A11-A13, B11-B13 can be easily arranged.
- the magnetic plate 71 that is, the first magnetic bodies 7111 to 7114, 7115 to 7118, 7119 to 7122, and the magnetic cores 111 to 114, 121 to 124, 131 to 134, the first surface of the first magnet '14 body 7111a to 7114a, 7115a to 7118a, 7119a to 7122a area top surface of magnetic core ll la to 114a, 121a to 124a, 1 Since the areas are larger than the areas 31a to 134a, the shorelines B11 to B13 do not protrude or fall off at least from the side covered with the magnetic material plate 71.
- FIGS. 2 and 3 conceptually show a perspective view and a side view of the motor that works in this embodiment.
- the motor includes the stator 63 and the rotor 31 described in the first embodiment. Prepare.
- the rotor 31 includes a base 62, magnets 621 to 624, and a magnetic plate 72.
- the base body 62 is rotatable around a rotation shaft 92 along a predetermined direction 91 and is disposed to face the magnetic plate 71 from the side opposite to the plate 61.
- the magnets 621 to 624 are arranged on the surface of the base 62 on the magnetic plate 71 side so as to face the magnetic plate 71. Specifically, each of the magnets 621 to 624 has a magnetic pole on the magnetic plate 71 side, and the polarity of the magnetic pole differs between adjacent magnets.
- the rotor rotates by the magnetic flux generated by the stator 63 acting on the magnets 621 to 624.
- the magnetic plate 72 has a plurality of fourth magnetic bodies 721 to 724 arranged in an annular shape in this order, and the fourth magnetic body 721 to 724 of one of the deviations is also the fourth magnetic body of the one.
- the body has gaps 721b-724b between any of the other fourth magnetic bodies.
- the fourth magnetic body 721 has a gap 721b between the fourth magnetic body 722 and the adjacent fourth magnetic body 722.
- gaps 722b to 724b are provided between the fourth magnetic bodies 722 to 724.
- the magnetic plate 72 is also covered with the magnets 621 to 624 on the side opposite to the base 62 and faces the magnetic plate 71 through a gap. Specifically, the magnets 621 to 624 are respectively covered with the fourth magnetic bodies 721 to 724.
- the magnets 621 to 624 have a plurality of magnetic poles facing the first magnetic bodies 7111 to 7122, any one of the magnetic poles from the first magnetic bodies 7111 to 7122 to the one magnetic pole It can be grasped that one fourth magnetic body 721 to 724 is placed facing the first magnetic body 7111 to 7122.
- the magnetic plate 72 described above is put on the magnet, so that the magnetic flux in the rotor is reduced from being short-circuited from one fourth magnetic body 721 to 724 to the other fourth magnetic body. The This is because the magnetic resistance increases in the gaps 721b to 724b.
- most of the magnetic flux flowing from the magnets 621 to 624 is guided to the stator 63, and Most of the magnetic flux flowing from the stator 63 is guided to the magnets 621 to 624 through the magnetic plate 72, that is, the fourth magnetic bodies 721 to 724. Therefore, the driving efficiency of the motor is improved.
- each of the fourth magnetic materials 721 to 724 may be individually covered with the magnets 621 to 624, or the fourth magnetic material 721 to For example, a part of 724 formed integrally may be covered with magnets 621-624.
- the magnetic body plate 72 Adopting the magnetic body plate 72 when the fourth magnetic bodies 721 to 724 are respectively put on the magnets 621 to 624 while exerting a force, the magnetic body plate 72 can be integrally formed, for example. This is desirable because the manufacturing process and its structure are simplified.
- the plate 61 and the base body 62 also have a magnetic material force because these function as a yoke and the driving efficiency or driving output of the motor increases.
- the rotor may not include the base body 62, or may include the base body 62 and the magnetic material plate 72.
- the magnets 621 to 624 for example, a disk-shaped magnet having a plurality of magnetic poles can be employed.
- the magnetic pole is formed so that the magnetic flux flows only by the surface force on the stator 63 side of the magnet.
- the rotor may not include the magnets 621 to 624.
- a surface provided with irregularities on the stator side so as to generate reluctance torque by magnetic flux flowing through the stator force can be adopted.
- FIG. 4 conceptually shows the stator 64 according to the present embodiment. However, it is disassembled along a predetermined direction 91.
- the stator 64 includes a core 641, windings A31 to A36, and a magnetic plate 73.
- the core 641 includes a plate 61 and a plurality of magnetic cores 31 to 36.
- the plate 61 has a surface 61a and is perpendicular to the predetermined direction 91.
- the plurality of magnetic cores 31 to 36 are arranged in a ring shape on the surface 61a in this order, and all of them protrude along a predetermined direction 91.
- the winding A31 is arranged around the magnetic core 31 along the surface 6 la.
- the windings A32 to A36 are also arranged in the magnetic cores 32 to 36 in the same manner.
- each of the winding wires A31 to A36 may be wound around the magnetic core in the above-described manner, or each of the winding wires A11 to A13 wound in advance may be wound in the above-described manner. It can be inserted into the magnetic core.
- Figure 4 shows the latter case.
- each of the windings A31 to A36 may be individually surrounded by an insulator. Moreover, you may employ
- first magnetic bodies 731 to 736 are annularly arranged in this order, and in any one of the first magnetic bodies 731 to 736, the one first magnetic body is Any of the other first magnetic bodies has gaps 731b to 736b therebetween.
- the first magnetic body 731 has a gap 731b adjacent to the first magnetic body 732 adjacent thereto. [Similar to here] of the first magnetic bodies 732 to 736 and have gaps 732b to 736b.
- the outer force of each of the gaps 731b to 736b extends along the radial direction viewed from the center of the magnetic plate 73.
- the magnetic plate 73 is placed on the magnetic cores 31 to 36 on the opposite side of the surface 61a. At this time, the first magnetic bodies 731 to 736 cover the magnetic cores 31 to 36, respectively.
- any one of the first magnetic bodies 731 to 736 the area of the surface 731a to 736a opposite to the one magnetic core 31 to 36 covered by the first magnetic body 731 to 736 is the same as that of the one magnetic core 31 to 36. 1 Magnetic material 73
- FIG. Figure 5 shows rotation The power shown by the child is described later.
- a motor can be configured for stator 64 in the same manner as in the second embodiment (Fig. 2). Specifically, as shown in FIG. 5, the rotor force plate 61 is disposed opposite the magnetic plate 73 from the opposite side to the stator.
- the gaps 731b to 736b of the magnetic plate 73 are preferably inclined in the radial direction viewed from the center of the magnetic plate 73 in terms of reducing cogging torque.
- a specific embodiment is shown in FIG. 6, for example.
- FIG. 6 conceptually shows the magnetic plate 73 as viewed from the side opposite to the magnetic cores 31 to 36.
- the direction 7321a of the air gap 732b facing toward the one end 7321 on the inner peripheral side of the magnetic body plate 73 as viewed from the center 7321a and the direction of the air force toward the other end 7322 of the air gap 732b 7322a And force S are shown respectively.
- Direction 7322a forms an angle of 15 ° counterclockwise with respect to direction 7321a when viewed from the opposite side of magnetic cores 31-36. The same applies to the gaps 731b and 733b to 736b.
- the cogging torque is reduced by inclining the outline of the gaps 71 l lb to 7122b.
- the gaps 721b to 724b of the magnetic plate 72 of the rotor are inclined with respect to the radial direction in which the central force of the magnetic plate 72 is also viewed. Desirable in terms of reducing cogging torque.
- the specific mode is shown in FIG. 7 and FIG.
- FIG. 7 and 8 conceptually show the magnetic plate 72 as seen from the side opposite to the magnets 621 to 624.
- FIG. 7 the direction 7211a is directed to one end 7211 on the inner peripheral side of the magnetic plate 72 having a gap 72 lb and the other direction 7212 is directed to the other end 7212 of the gap 721b as viewed from the center of the magnetic plate 72 7212a and power are shown respectively.
- the direction 7212a forms an angle of 15 ° counterclockwise with respect to the direction 721 la when viewed from the opposite side to the magnets 621 to 624.
- gaps 722b to 724b It is like.
- one side 7213 of the outer wall of the gap 721b is seen from the center of the magnetic plate 72, toward the one end 7215 on the inner peripheral side of the magnetic plate 72, in the direction 7215a and toward the other end 7216.
- the heading direction 7216a is shown.
- the other 7214 of the outer wall of the gap 721b is attached to a direction 7217a directed toward one end 7217 on the inner peripheral side of the magnetic plate 72 as viewed from the center of the magnetic plate 72, and directed toward the other end 7218.
- Direction 7218a is shown.
- direction 7215a forms an angle of 15 ° counterclockwise with respect to direction 7216a and direction 7217a forms an angle of 15 ° clockwise with respect to direction 7218a.
- any of the gaps 721b to 724b shown in FIGS. 7 and 8 it is desirable that the width is wide in that the magnetic flux tends to concentrate on the centers of the magnetic bodies 721 to 724.
- the widths of the gaps 721b to 724b can be grasped as, for example, an angle formed by the center line 7219a in the directions 7215a and 7216a and the center line 7220a in the directions 7217a and 721 8a. That is, as the angle increases, the widths of the gaps 721b to 724b increase.
- Figure 8 shows the case where the angle is 30 °.
- the magnetic plate 73 shown in FIG. 6 is used for the stator 64, and the magnetic plate 72 shown in FIG. 7 or FIG. 8 is used for the rotor, so that the gaps 731b to 736b are obtained.
- the inclination force of the outer space of the gaps 721b to 724b with respect to the outer wall of the magnetic material plate 72, 73 is larger than the case where the outer wall of one of the magnetic plates 72 and 73 is along the radial direction.
- the direction 7212a and the direction 7322a are obtained when the direction 721 la and the direction 7321a are aligned with each other when viewed from the direction of the axis 92. And makes an angle of 30 ° when viewed from the direction of axis 92.
- the direction 7218a and the direction 7322a are equal to the direction force of the axis 92 when the direction 7217a and the direction 7321a are aligned with each other when viewed from the direction of the axis 92. Look at an angle of 30 °.
- the manufacturing method of the stators 63, 64 can be grasped as follows. That is, the manufacturing method includes an arrangement step and a covering step. In the arranging step, at least one protruding in one direction on the surface 61a of the plate 61 is provided. For the cores 631 and 641 on which the magnetic cores 111 to 114, 121 to 124, 131 to 134, and 31 to 36 are arranged, the surface 61a is applied to the cores 1111 to 114, 121 to 124, 131 to 134, 31 to 36. [This line A11-A13, B11-: B13, ⁇ 31- ⁇ 36 are arranged. In the coating process, after the placing process, the first magnetic body 7111-7212, 731-736 is put on the magnets 'll', lll-114, 121-124, 131-134, 31-36 opposite to the surface 61a. .
- stator 63 instead of covering the magnetic material plate 71 on the magnetic cores 111 to 114, 121 to 124, and 131 to 134, the first magnetic material 7111 to 7114, 7115 to 7118 is arranged in the f row. , 7119 to 7122 by chance [This magnet 111 to 114, 121 to 124, 131 to 134 may be covered! Part of the first magnetic body 7111 to 7122 is integrally molded, for example. May be placed on the magnetic cores 111-114, 1 21-124, 131-134. The same is true for stator 64.
- the adoption of 71 is desirable in that the magnetic plate 71 can be integrally formed, for example, and the manufacturing process and structure of the stator 63 can be simplified. The same can be said for the magnetic plate 73.
- FIG. 9 conceptually shows the stator 65 according to the present embodiment. However, it is disassembled along a predetermined direction 91.
- the stator 65 includes a core 651 and windings A11 to A13 and B11 to B13.
- the core 651 includes a magnetic material plate 71 and a plurality of magnets, lll-114, 121-124, 131-134.
- the magnetic plate 71 has the same structure as that of the first embodiment, and is positioned perpendicular to the predetermined direction 91.
- the magnetic core 111 protrudes to the side opposite to the predetermined direction 91.
- the area of the surface 7111a of the first magnetic body 7111 opposite to the magnetic core 111 is the cross section 11 la of the magnetic core 111 on the first magnetic body 7111 side (in FIG. 9, the first magnetic body 7111 along the predetermined direction 91). And the magnetic core 111 are disassembled, and a cross section of 11 la appears).
- the windings B11 to B13 are arranged from the side opposite to the predetermined direction 91 with respect to the core 651, that is, the side opposite to the magnetic plate 71 with respect to the magnetic core, and then the windings A11 to A13 are arranged. To do.
- the winding wire B11 is placed so as to surround the magnetic cores 123, 124, 131, and the winding wire B12 is surrounded by the magnetic cores 133, 134, 111, and is placed on the winding wire B13.
- the winding wire B11 is placed so as to surround the magnetic cores 123, 124, 131, and the winding wire B12 is surrounded by the magnetic cores 133, 134, 111, and is placed on the winding wire B13.
- the winding wire Al l is arranged to surround the magnetic cores 111 to 113, the winding wire A12 is arranged to surround the magnetic cores 121 to 123, and the winding wire A13 is arranged to surround the magnetic cores 131 to 133. Be placed. Winding lines A11 to A13, B11 to: All of B13 are arranged along the surfaces of the first magnetic bodies 7111 to 7114, 7115 to 7118, and 7119 to 7122.
- the windings A11 to A13 and B11 to B13 can be wound or fitted with a previously wound winding.
- Figure 9 shows the latter case.
- winding wires A11 to A13 and B11 to B13 may be individually surrounded by an insulator as in the first embodiment, and even if a round wire or a rectangular wire is adopted for each of them. Good.
- FIG. 10 shows a case where a plate 611 is arranged on the stator 65 on the side opposite to the magnetic plate 71, and a rotor 31 is arranged as in the second embodiment.
- the plate 611 may be put on the stator 65 from the side opposite to the magnetic plate 71 (first mode), or the plate 611 is set at a position on the side opposite to the magnetic plate 71 of the stator 65. Axis of rotation 9 along the direction 91
- It may be arranged to be rotatable around 2 (second mode).
- the same effect as in the first and second embodiments can be obtained.
- the following effects can be obtained.
- the structure obtained in the first embodiment is the same as that of the stator 63.
- the plate 611 is made of a magnetic material, it is sufficient that the plate 611 is laminated with electromagnetic steel plates without using a dust core, which simplifies the production. This is because the magnetic flux flows in the plate 611 mainly in a direction perpendicular to the predetermined direction 91, that is, in a direction perpendicular to the laminating direction of the electromagnetic steel plates. This is because iron loss does not increase significantly.
- the driven part it is easy to drive the driven part by connecting the driven part to the plate 611.
- the driven part for example, a fan can be adopted as will be described later.
- the stator 65 since the stator 65 has the air gears on both sides in the predetermined direction 91, the thrust force acting on the rotor 31 is cancelled. Also, since the plate 611 rotates at the same rotational speed as the rotating magnetic field, the magnetic flux does not alternate. Therefore, the plate 611 has no hysteresis loss, only eddy current loss due to higher-order components of magnetic flux rotation, and iron loss is significantly reduced.
- FIG. 11 shows a case where the magnetic plate 74 is further covered on the stator 65 in the second mode described in the fourth embodiment. This aspect may be grasped in the first aspect described in the fourth embodiment in that the magnetic plate 74 is put on the stator 65 instead of the plate 611.
- a plurality of second magnetic bodies 7411 to 7422 are annularly arranged in this order.
- the one second magnetic body is Any of the other second magnetic bodies has gaps 7411b to 7422b therebetween.
- the second magnetic body 7411 has a gap 7411b between the second magnetic body 7411 and the adjacent second magnetic body 7412.
- gaps 7412b to 7422b are provided between the second magnetic bodies 7412 to 7422.
- FIG. 11 shows a case in which the outer force of each of the gaps 7411b to 7422b extends along the radial direction viewed from the center of the magnetic plate 74.
- the magnetic plate 74 includes the second magnetic bodies 7411 to 7414, 7415 to 7418, and 7419 to 7422 as magnetic cores 1. 11 to 114, 121 to 124, 131 to 134 are placed on the stator 65, respectively.
- the area of the surface 741 la of the second magnetic body 7411 opposite to the magnetic core 111 is larger than the area of the surface 11 lb of the magnetic core 111 on the second magnetic body 7411 side.
- the surfaces 7411a and 111b are not shown, and the surfaces 7412a to 7422a, 112b to 114b, 121b to 124b, and 131b to 134b described below are also not shown.
- Second magnetic material 7412 to 7414, 7415 to 7418, 7419 to 7422 [Tip! Even though it is opposite to the magnet, 112 to 114, 121 to 124, 131 to 134, respectively, the surface of J 7474a to 7414a, 7415a to 7418a, 7419a to 7422a force The surface of the magnetic core on the second magnetic body side is larger than the areas 112b to 114b, 121b to 124b, and 131b to 134b.
- the area of the second magnetic material surfaces 7411a to 7422a is larger than the area of the magnetic core surfaces 111b to 114b, 121b to 124b, 131b to 134b. Magnetism can lead to 111-114, 121-124, 131-134 ⁇ .
- the second magnetic body force with one magnetic flux is reduced from being short-circuited to the other second magnetic body.
- FIG. 11 the rotors 31 and 32 are also shown.
- the rotor 31 has the same structure as that of the second embodiment, and is arranged to face the magnetic plate 74 from the side opposite to the magnetic plate 72.
- FIG. 12 shows a side surface of the motor in which the rotors 31 and 32 are arranged on the stator 65.
- the rotor 32 includes a base 611, magnets 6111 to 6114, and a magnetic plate 75.
- the base body 611 is rotatable around a rotation shaft 92 along a predetermined direction 91 and is disposed opposite to the magnetic plate 71 on the side opposite to the magnetic plate 71.
- the above-described plate 611 is used as the base of the rotor 32.
- the magnets 6111 to 6114 are arranged on the surface of the base 611 on the magnetic plate 74 side so as to face the magnetic plate 74. Specifically, each of the magnets 6111 to 6114 has a magnetic pole on the magnetic plate 74 side, and the polarity of the magnetic pole differs between adjacent magnets.
- the rotor rotates by the magnetic flux generated by the stator 65 acting on the magnets 6111 to 6114.
- a plurality of third magnetic bodies 751 to 754 are annularly arranged in this order.
- the one third magnetic body is Any of the other third magnetic bodies has gaps 751b to 754b therebetween.
- the third magnetic body 7 51 has a gap 751b between it and the adjacent third magnetic body 752.
- the third magnetic bodies 752 to 754 have the same voids 752b to 754b.
- the magnetic plate 75 is placed on the magnets 6111 to 6114 on the side opposite to the base 611. Specifically, the magnetic plates 75 are arranged on the base 611 by covering the magnets 6111 to 6114 with the third magnetic bodies 721 to 724, respectively. The magnetic plate 75 is opposed to the magnetic plate 74 through a gap.
- the magnets 6111 to 6114 have a plurality of magnetic poles facing the second magnetic bodies 7411 to 7422, any one of the magnetic poles from the second magnetic bodies 7411 to 7422 to the one magnetic pole It can be grasped that one third magnetic body 751 to 754 is placed opposite to the second magnetic body 7411 to 7422.
- the magnetic flux can be efficiently linked to the windings A11 to A13 and B11 to B13.
- the magnetic plates 72 and 75 have gaps 721b to 724b and 751b to 754b, respectively.
- the magnetic force with one magnetic flux is reduced from flowing to the other magnet via the magnetic plates 72 and 75.
- the rotor 32 is also disposed on the opposite side of the rotor 31 with respect to the stator 65, the driving efficiency and the driving output of the motor are compared with the motor of the second embodiment. Is expensive.
- FIG. 13 conceptually shows the stator 66 according to the present embodiment. However, it is shown disassembled along a predetermined direction 91.
- the stator 66 includes a core 661 and feeders A31 to A36.
- the core 661 includes a magnetic plate 73 and a plurality of magnetic cores 31 to 36.
- the magnetic plate 73 has the same structure as that of the third embodiment and is positioned perpendicular to the predetermined direction 91.
- the magnetic cores 31 to 36 protrude to the side opposite to the predetermined direction 91, respectively.
- the surfaces 731a to 736a opposite to the magnetic cores 31 to 36 of the one first magnetic body 731 to 736 are the same as the first first magnetic body 731 to 731. It is larger than the area of the cross-sections 31a to 36a on the first magnetic body 731 to 736 side of the magnetic cores 31 to 36 that the 736 covers.
- the windings A31 to A36 are respectively directed to the cores 31 to 36 from the side opposite to the predetermined direction 91 with respect to the core 661, that is, from the side opposite to the magnetic plate 73 with respect to the magnetic cores 31 to 36. Be placed.
- winding of the windings A31 to A36 can be implemented by winding or fitting of windings that have been wound in advance.
- FIG. 13 shows the latter case.
- winding wires A31 to A36 may be individually surrounded by an insulator as in the first embodiment, and a round wire or a rectangular wire may be adopted for each of them.
- FIG. 10 shows a case where a plate 611 is arranged on the stator 66 from the side opposite to the magnetic plate 71, and further, the rotor 31 is arranged in the same manner as in the third embodiment. .
- the plate 611 may be placed on the stator 66 from the side opposite to the magnetic plate 73 (first mode), or the magnetic plate of the stator 66. It may be arranged at a position opposite to 73 so as to be rotatable about a rotation axis 92 along a predetermined direction 91 (second mode). According to the first and second aspects, the same effects as in the fourth embodiment can be obtained.
- FIG. 14 shows a side view of the motor obtained in the second embodiment.
- the magnetic plate having the same structure as the magnetic plate 73 is also referred to as the magnetic plate 73. It may be put on the stator 66 from the opposite side. In addition, a force opposite to that of the magnetic plate 73 is turned against the magnetic plate. A trochanter may be arranged.
- the outer walls of the gaps 731b to 736b of the magnetic plate 73 are tilted in the same manner as the magnetic plate 73 described in the third embodiment (Fig. 6). Desirable because it can reduce the luke.
- the magnetic plate 72 is the same as the magnetic plate 72 described in the third embodiment.
- Inclining the outline of the air gaps 721b to 724b is desirable because it can reduce the cogging torque.
- iron cores can be used for the magnetic cores 111 to 114, 121 to 124, 131 to 134, 31 to 36 and the magnetic plates 71 to 75.
- a dust core can be adopted as the iron core.
- the iron loss of the dust core is small no matter which direction the magnetic flux flows. Therefore, compared with the case where magnetic steel sheets or the like are laminated in the direction of the rotating shaft 92, the generation of eddy current is suppressed, and iron loss is significantly reduced.
- the density is uniformly reduced when the iron core is formed or immediately after the iron core is formed again. Furthermore, since the dust core has insulation properties, for example, it is easy to ensure insulation from the wire.
- the iron core may be a pig iron core wound with a magnetic steel sheet around a center line along a predetermined direction 91, or a lamination in which magnetic steel sheets are stacked in a direction perpendicular to the predetermined direction 91.
- An iron core may be used. According to the iron core and the laminated iron core, the magnetic flux easily flows in the predetermined direction 91.
- the pig iron core is shown in FIG. 15, and the laminated iron core is shown in FIG.
- the electromagnetic steel sheet it is desirable to adopt a directional electromagnetic steel sheet in which a direction having good force magnetic characteristics that can employ the non-oriented electrical steel sheet follows a predetermined direction 91.
- the permeability and saturation flux density can be improved, and copper loss can be reduced compared to using non-oriented electrical steel sheets. This is because iron loss can be reduced.
- accuracy in manufacturing the stators 63 to 66 can be obtained by using, for example, a jig.
- using the jig in the mode in which the plates 61 and 611 are covered after the shoreline is placed improves the accuracy more quickly. As described above, it is easier to improve the accuracy by integrally molding the magnetic plate 71 and the magnetic core.
- the stators 65 and 66 described in the fourth embodiment to the present embodiment are fixed to the inside of a case having a magnetic force, for example, the outer periphery of the magnetic plates 71 and 73 is set to the inner periphery of the case. It is not desirable to hold the stators 65 and 66 by fixing the magnetic flux to the case because the magnetic flux leaks from the magnetic plate 71 to the case and the interlinkage magnetic flux decreases. Note that the magnetic flux does not leak if it is fixed to the inner periphery of the case made of a non-magnetic material.
- the entire stator 65, 66 or the outside of the coil is molded with grease, leakage of magnetic flux can be prevented.
- the outer peripheries of the magnetic plates 71 and 73 may be fixed to the inner perimeter of the case via a ring having a non-magnetic physical force such as aluminum. Further, a magnetic core in which the same phase windings are wound in the same direction may be extended and fixed to the inner periphery of the case.
- force The surface force of the magnetic material plate 72 on the magnetic material plates 71 and 73 side is also the magnet 6
- the distance t2 (Figs. 3, 5, 12, 12 and 14) to the surface opposite to the magnetic plate 72 of 21 to 624 is smaller than the magnetic plate 72, the magnetic flux generated from the magnets 621 to 624 is It is desirable in that the short circuit in the rotor via the outer peripheral side of 72 is prevented from flowing.
- the width tssl (Figs. 2 and 10) of the gaps 7111b to 7122b of the magnetic plate 71 is 2 of the distance ⁇ (Figs. 3 and 12) between the magnetic plate 71 and the magnetic plate 72. It is desirable to be larger than twice. This is because magnetic flux is prevented from short-circuiting one force of the first magnetic body to the other through the air gap 71 l lb to 7122b between the adjacent first magnetic bodies 7111 to 7122 in the magnetic plate 71. . This is because the magnetic flux is transmitted through the magnetic plate 72 rather than flowing through the first magnetic material 7111 to 7122 of one magnetic plate 71 to the other first magnetic material adjacent thereto through the gaps 7111b to 7122b. This is because the magnetic resistance is smaller when flowing. The same can be said for the width tssl (Figs. 4 and 13) of the gap 73 lb to 736b of the magnetic plate 73 (Figs. 5 and 14).
- the above-mentioned distance ⁇ is the surface closer to the first magnetic material 7111 to 7122, 731 to 736 of the magnetic material plates 71 and 73 and the second magnetic material 721 to 724 of the magnetic material plate 72. Can be grasped. The same applies to the following.
- the width trsl (Figs. 2 and 10) of the gaps 721b to 724b of the magnetic plate 72 is preferably larger than twice the distance ⁇ . This is because the magnetic flux is prevented from short-circuiting from one of the fourth magnetic bodies to the other through the gaps 721b to 724b between the adjacent fourth magnetic bodies 721 to 724 in the magnetic body plate 72. This is because the magnetic flux is one of the fourth magnetic bodies 721- This is because the magnetic resistance is smaller when flowing through the magnetic plate 71 than when flowing through the gaps 721b to 724b from 724 to another fourth magnetic body adjacent thereto.
- the thickness tm (FIGS. 3, 5, 12, and 14) of the rotor magnets 621 to 624 in the direction of the rotation axis 92 is preferably larger than twice the distance ⁇ . This is because the magnetic flux generated from the magnets 621 to 624 is prevented from being short-circuited between the magnetic poles of the same magnet via the side surfaces. This is because one end force of one magnet 621 to 624 on one side of the magnetic plate 72 side is also magnetic flux to one end of one magnet 621 to 624 to the other magnet, rather than a magnetic flux flows to the other end via the side surface. This is because the magnetic resistance is smaller when flowing through the plate 71.
- FIG. 17 shows a cross section of a compressor equipped with a motor that can be used in the third embodiment.
- FIGS. 18 and 19 show cross sections of compressors equipped with motors that are powerful in the fifth and sixth embodiments, respectively. In the following, the compressor shown in Fig. 17 will be described in particular.
- the compressor includes a cylindrical casing 80, a suction pipe 81, and a discharge pipe 82.
- the suction pipe 81 is connected to the side surface of the housing 80, for example.
- the discharge pipe 82 is located on the side opposite to the suction pipe 81 with respect to the motor.
- the casing 80 includes a compression unit 84, a motor, and a balance weight 83.
- the rotation shaft 92 of the motor extends along the direction in which the housing 80 extends.
- the non-weight weight 83 is placed, for example, in the vicinity of the outer diameter on the surface of the rotor opposite to the stator 64, and this case is shown in FIG. Instead of placing the lance weight 83, a hole (which can be grasped as a negative balance weight) may be provided on the stator 64 side of the rotor base 62. In addition to providing a tolerance weight, it is desirable to increase the outer diameter of the portion of the magnetic plate 72 opposite to the balance weight 83 with respect to the rotating shaft 92.
- the refrigerant sucked from the suction pipe 81 is compressed by the drive of the motor in the compression section 84.
- the compressed refrigerant is discharged from the discharge pipe 82.
- the refrigerant and the like can be efficiently compressed. Also, since the gap between the stator 64 and the rotor is perpendicular to the rotating shaft 92, oil such as lubricating oil existing in the compressor is discharged from the discharge pipe 82, and the oil is stirred. Be reduced It is.
- the tolerance weight 83 is mounted in the vicinity of the outer diameter of the rotor surface, the thickness of the tolerance weight 83 in the direction of the rotation axis 92 can be reduced, thereby reducing the size of the compressor. It becomes.
- any of the motors described above may be mounted on an air conditioner and used to rotate a fan.
- the fan is provided on the plate 611 in the rotor 31 and 32 or the second mode described in the fourth and sixth embodiments.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/795,381 US7777391B2 (en) | 2005-01-18 | 2005-12-19 | Armature, motor and compressor and methods of manufacturing the same |
AU2005325361A AU2005325361B2 (en) | 2005-01-18 | 2005-12-19 | Armature, motor, compressor and method for manufacturing them |
EP05816415A EP1841047A1 (en) | 2005-01-18 | 2005-12-19 | Armature, motor, compressor and method for manufacturing them |
CN2005800468627A CN101107768B (zh) | 2005-01-18 | 2005-12-19 | 电枢、电动机和压缩机及它们的制造方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-010397 | 2005-01-18 | ||
JP2005010397 | 2005-01-18 | ||
JP2005-320655 | 2005-11-04 | ||
JP2005320655A JP2006230184A (ja) | 2005-01-18 | 2005-11-04 | 電機子、モータ及び圧縮機並びにそれらの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006077709A1 true WO2006077709A1 (ja) | 2006-07-27 |
Family
ID=36692103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/023256 WO2006077709A1 (ja) | 2005-01-18 | 2005-12-19 | 電機子、モータ及び圧縮機並びにそれらの製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7777391B2 (ja) |
EP (1) | EP1841047A1 (ja) |
JP (1) | JP2006230184A (ja) |
KR (1) | KR100903265B1 (ja) |
CN (1) | CN101107768B (ja) |
AU (1) | AU2005325361B2 (ja) |
WO (1) | WO2006077709A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008106694A (ja) * | 2006-10-26 | 2008-05-08 | Daikin Ind Ltd | 圧縮機 |
EP2139091A4 (en) * | 2007-04-18 | 2017-02-22 | Daikin Industries, Ltd. | Field piece |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4858061B2 (ja) * | 2006-10-03 | 2012-01-18 | ダイキン工業株式会社 | アキシャルギャップ型モータ、圧縮機、及びアキシャルギャップ型モータの製造方法 |
JP5309609B2 (ja) * | 2008-02-29 | 2013-10-09 | ダイキン工業株式会社 | アキシャルギャップ型回転電機及び界磁子用コア |
JP2011010375A (ja) * | 2009-06-23 | 2011-01-13 | Hokkaido Univ | アキシャル型モータ |
NO331113B1 (no) * | 2010-03-23 | 2011-10-10 | Norwegian Ocean Power As | Variabel elektrisk generator |
US9685847B2 (en) * | 2014-01-31 | 2017-06-20 | Haier Us Appliance Solutions, Inc. | Linear motor with electromagnetically actuated spring mover |
US10797573B2 (en) * | 2014-04-16 | 2020-10-06 | Power It Perfect, Inc. | Axial motor/generator having multiple inline stators and rotors with stacked/layered permanent magnets, coils, and a controller |
US10298104B2 (en) * | 2014-04-16 | 2019-05-21 | Power It Perfect, Inc. | Electrical motor and electrical generator device |
US10164510B1 (en) | 2017-09-27 | 2018-12-25 | Daniel Farley | Low resistance generator |
US10270323B2 (en) | 2017-09-27 | 2019-04-23 | Daniel Farley | Low resistance generator |
LU100555B1 (en) * | 2017-12-13 | 2019-06-28 | Luxembourg Inst Science & Tech List | Compact halbach electrical generator with coils arranged circumferentially |
GB2583974B (en) * | 2019-05-17 | 2023-12-06 | Time To Act Ltd | Improvements to the construction of axial flux rotary generators |
GB2624859A (en) * | 2022-11-25 | 2024-06-05 | Yasa Ltd | A rotor |
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- 2005-12-19 CN CN2005800468627A patent/CN101107768B/zh not_active Expired - Fee Related
- 2005-12-19 US US11/795,381 patent/US7777391B2/en not_active Expired - Fee Related
- 2005-12-19 KR KR1020077018820A patent/KR100903265B1/ko not_active IP Right Cessation
- 2005-12-19 WO PCT/JP2005/023256 patent/WO2006077709A1/ja active Application Filing
- 2005-12-19 AU AU2005325361A patent/AU2005325361B2/en not_active Ceased
- 2005-12-19 EP EP05816415A patent/EP1841047A1/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
AU2005325361A1 (en) | 2006-07-27 |
JP2006230184A (ja) | 2006-08-31 |
AU2005325361B2 (en) | 2009-05-28 |
KR20070099022A (ko) | 2007-10-08 |
CN101107768B (zh) | 2010-05-12 |
US7777391B2 (en) | 2010-08-17 |
EP1841047A1 (en) | 2007-10-03 |
CN101107768A (zh) | 2008-01-16 |
US20090015110A1 (en) | 2009-01-15 |
KR100903265B1 (ko) | 2009-06-17 |
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