WO2019043766A1 - Motor and air conditioning device - Google Patents

Motor and air conditioning device Download PDF

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Publication number
WO2019043766A1
WO2019043766A1 PCT/JP2017/030821 JP2017030821W WO2019043766A1 WO 2019043766 A1 WO2019043766 A1 WO 2019043766A1 JP 2017030821 W JP2017030821 W JP 2017030821W WO 2019043766 A1 WO2019043766 A1 WO 2019043766A1
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WO
WIPO (PCT)
Prior art keywords
rotor
shaft
stator
motor
core
Prior art date
Application number
PCT/JP2017/030821
Other languages
French (fr)
Japanese (ja)
Inventor
知毅 林
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2019538771A priority Critical patent/JP6861830B2/en
Priority to PCT/JP2017/030821 priority patent/WO2019043766A1/en
Publication of WO2019043766A1 publication Critical patent/WO2019043766A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator

Definitions

  • the present invention relates to an inner rotor type motor and an air conditioner provided with the motor.
  • the inner rotor type motor is configured such that a rotor disposed inside a stator rotates (see, for example, Patent Document 1).
  • the rotor core and the stator core are each formed of laminated steel plates in which a plurality of electromagnetic steel plates are laminated.
  • a rotor has a permanent magnet in the perimeter side of a rotor core.
  • the motor is mounted on various devices such as an air conditioner and driven as a power source such as a fan.
  • the air conditioner has a plurality of motors for driving a fan or a compressor, and the output range required for each motor differs depending on the object to be driven. As the size of the device on which the motor is mounted is increased, the output of the motor is required to be increased. Therefore, conventionally, the output of the motor is increased by increasing the thickness of laminated steel plates in the rotor core and the stator core.
  • An object of the present invention is to provide a motor and an air conditioner.
  • a motor according to the present invention includes a plurality of core modules including a shaft, a rotor into which the shaft is inserted, a stator provided on the outer peripheral side of the rotor, and a plurality of core modules including frame portions covering the outer periphery of the stator The respective frame parts of are connected along the axial direction of the shaft.
  • An air conditioner according to the present invention includes the above-described motor and a fan that rotates using the motor as a power source.
  • the overall output can be set by combining two or more core modules. Therefore, even in the case of increasing the types of output to be exhibited, it is possible to suppress the new construction of the manufacturing equipment and the mold and to improve the productivity.
  • FIG. 3 is an exploded perspective view of the motor shown in FIGS. 1 and 2; It is a perspective view which shows the shaft of FIG. 3 partially.
  • FIG. 4 is a perspective view of the rotor of FIG. 3; It is the perspective view which illustrated the state which assembled the shaft of FIG. 4 and the rotor of FIG. It is the schematic which looked at the rotor of FIG. 3 from the axial direction side. It is explanatory drawing which shows schematic structure of the rotor core which comprises the rotor of FIG. FIG.
  • FIG. 9 is a schematic cross-sectional view along the line Y-Y of FIG. 8; It is a perspective view which shows the stator of FIG. It is the schematic which saw the stator of FIG. 3 from the axial direction side. It is a perspective view which shows the flame
  • FIG. 14 is a schematic cross-sectional view along the line AA of FIG. 13;
  • FIG. 14 is a schematic cross-sectional view along the line BB of FIG. 13; It is the enlarged view which extracted the periphery of the positioning groove and protrusion of FIG. 15 partially.
  • FIG. 5 is a schematic cross-sectional view illustrating another configuration of the motor according to the first embodiment of the present invention.
  • FIG. 1 is an external perspective view of an air conditioning apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a front view of the air conditioner of FIG. 1 as viewed from the front side. The overall configuration of the air conditioner according to the present embodiment will be described based on FIGS. 1 and 2.
  • the air conditioning apparatus 100 is connected to a heat source machine (not shown) installed outdoors or the like through a pipe that circulates a heat medium.
  • the air conditioning apparatus 100 performs air conditioning of a space to be air-conditioned by circulating a heat medium subjected to exhaust heat or heat absorption by a heat source machine and circulating air in the space to be air-conditioned.
  • the air conditioning apparatus 100 has a housing 101. At an upper portion of the housing 101, an air outlet 102 for blowing air is provided. A front suction port 103 for sucking air is provided on the front side of the housing 101. In addition, although not shown, the rear side of the housing 101 is provided with a rear suction port for drawing air.
  • the air conditioning apparatus 100 is installed, for example, on the floor surface of the air conditioning target space, and a blowout flange 102a formed around the blowout port 102 is connected to a blowout duct disposed on a ceiling of the air conditioning target space.
  • the air conditioning apparatus 100 includes a motor 10 and a fan 150 that rotates using the motor 10 as a power source.
  • the motor 10 and the fan 150 are provided inside the housing 101.
  • the air conditioning apparatus 100 has a heat exchanger that exchanges heat between a heat medium flowing from a heat source unit and air sucked from the front suction port 103 or the like.
  • the heat exchanger is, for example, a fin-and-tube heat exchanger, and is disposed obliquely in the housing 101.
  • the fan 150 is, for example, a centrifugal sirocco fan, and a plurality of blades are arranged in a cylindrical shape.
  • a dual suction type sirocco fan is illustrated as the fan 150.
  • the fan 150 sucks air from the front suction port 103 or the like and sends the air that has passed through the heat exchanger to the blowout port 102.
  • the air sent to the air outlet 102 by the fan 150 passes through the air outlet duct and is supplied again to the air conditioning target space.
  • FIG. 3 is an exploded perspective view of the motor shown in FIGS. 1 and 2.
  • the motor 10 includes a shaft 21, a rotor 22 into which the shaft 21 is inserted, a stator 31 provided on the outer peripheral side of the rotor 22, and a plurality of frame portions 35 surrounding the outer periphery of the stator 31. And a core module 80.
  • the frame portions 35 of the plurality of core modules 80 are connected along the axial direction Ax of the shaft 21.
  • the motor 10 includes the rotor assembly 20 and a plurality of stator assemblies 30.
  • the motor 10 also has a first cover 40 and a second cover 50.
  • the rotor assembly 20 includes a shaft 21, a plurality of rotors 22 into which the shaft 21 is inserted, a first bearing 24, and a second bearing 25.
  • the rotor assembly 20 has a structure in which the same number of rotors 22 as the stator assembly 30 are fixed to one shaft 21.
  • the shaft 21 is made of, for example, a steel material made of carbon steel for machine structure such as S45C.
  • a plurality of rotors 22 are fixed to the shaft 21.
  • Each of the plurality of rotors 22 is provided with a rotor side key groove 22c.
  • the first bearing 24 is press-fitted and fixed to the shaft 21 at one end side of the plurality of rotors 22.
  • the second bearing 25 is press-fit and fixed to the shaft 21 at the other end side of the plurality of rotors 22.
  • a fan 150 as a load is provided on the axial direction Ax side of the shaft 21. That is, the first bearing 24 supports the shaft 21 via the first cover 40 on the load side of the motor 10, and the second bearing 25 via the second cover 50 on the non-load side of the motor 10. Support the shaft 21.
  • the axial direction Ax is the direction on the load side of the shaft 21 and corresponds to each direction such as up, down, left, and right according to the direction in which the motor 10 is attached.
  • the stator assembly 30 includes a stator 31 provided on the outer peripheral side of the rotor 22 and a frame portion 35 covering the outer periphery of the stator 31.
  • the stator assembly 30 is one in which the stator 31 and the frame portion 35 are integrally assembled by welding or the like.
  • the frame portion 35 is an outer shell component that forms an outer shell of the stator assembly 30.
  • a male portion 35a is formed at one end in the axial direction Ax, and a female portion 35b is formed at the other end. Therefore, in the two frame parts 35, the male part 35a of one frame part 35 is fitted into the female part 35b of the other frame part 35 and connected.
  • the frame portion 35 has a protrusion 35 c on the inner side wall 351 facing the stator core.
  • a groove 35 d corresponding to the protrusion 35 c is formed on the outer peripheral side of the female portion 35 b of the frame 35. That is, in the two adjacent frame portions 35, the protrusions 35c of one frame portion 35 are fitted in the grooves 35d of the other frame portion 35.
  • the protrusion 35 c and the groove 35 d are for determining the positions of the plurality of frame portions 35 in the rotational direction R.
  • the protrusion 35 c and the groove 35 d are formed along the axial direction Ax.
  • the first lid 40 is attached to the frame 35 at one end of the plurality of stator assemblies 30. That is, the first lid portion 40 is attached to the frame portion 35 closest to the axial direction Ax among the plurality of frame portions 35 by screwing or the like.
  • a lid-side female portion 40b into which the male portion 35a of the frame portion 35 is fitted is formed on the first lid portion 40 on the side facing the frame portion 35.
  • a lid-side protrusion 40d to be fitted into the groove 35d of the frame portion 35 is formed on the inner peripheral side of the lid-side female portion 40b.
  • the lid side protrusion 40 d is used to position the first lid 40 in the rotational direction R.
  • the second lid 50 is attached to the frame 35 on the other end side of the plurality of stator assemblies 30. That is, the second lid 50 is attached to the frame portion 35 closest to the axial direction among the plurality of frame portions 35 by screwing or the like.
  • the anti-axial direction is the direction opposite to the axial direction Ax.
  • the lid side male portion 50a to be fitted into the female portion 35b of the frame portion 35 is formed in the second lid portion 50.
  • a lid-side groove 50c to which the projection 35c of the frame 35 is fitted is formed on the outer peripheral side of the lid-side male portion 50a.
  • the lid-side groove 50 c is used to position the second lid 50 in the rotational direction R.
  • a through hole 41 through which the shaft 21 passes is formed at the center of the first lid 40.
  • a bearing housing 44 in which the first bearing 24 is fitted is formed on the side of the first lid 40 opposite to the frame 35.
  • the first bearing 24 is press-fit into the bearing housing 44.
  • the second bearing 25 is press-fit into the bearing housing 55. That is, the rotor assembly 20 is fixed by the first bearing 24 and the second bearing 25.
  • the first lid 40 and the second lid 50 are formed of a resin such as steel or fiber reinforced plastic.
  • the 1st cover part 40 and the 2nd cover part 50 can be formed by the aluminum die-cast manufacturing method.
  • the first lid 40 and the second lid 50 may be castings formed by a method other than the aluminum die casting method.
  • FIG. 4 is a perspective view partially showing the shaft of FIG.
  • FIG. 5 is a perspective view showing the rotor of FIG. 6 is a perspective view illustrating the shaft of FIG. 4 and the rotor of FIG. 5 in an assembled state.
  • the structure for fixing the rotor 22 at a predetermined position of the shaft 21 will be described with reference to FIGS. 4 to 6.
  • the rotor assembly 20 has a bar-shaped key portion 23 for determining the position of the shaft 21 and the rotor 22 in the rotational direction R.
  • the shaft 21 has a shaft side key groove 21 c in which the key portion 23 is fitted.
  • the rotor 22 has an insertion hole 22 a into which the shaft 21 is inserted, and a rotor-side key groove 22 c into which the key portion 23 is fitted.
  • the rotor side key groove 22 c is for preventing the phases of the respective rotors 22 from shifting, and the key portion 23 described later is fitted.
  • the key portion 23 has the same number as that of the rotor 22, and the shaft 21 has the same number of shaft-side key grooves 21c as that of the rotor 22. Then, one key portion 23, one shaft side key groove 21c, and one rotor side key groove 22c are arranged in association with each other. With this structure, the motor 10 can also position the plurality of rotors 22 in the axial direction Ax.
  • FIG. 7 is a schematic view of the rotor of FIG. 3 viewed from the axial direction side.
  • the rotor 22 has a rotor core 220 made of laminated steel plates.
  • an IPM (Interior Permanent Magnet) motor is illustrated as the motor 10.
  • the IPM motor is a permanent magnet embedded type motor having a rotor in which permanent magnets are embedded in a rotor core, and has a sensor magnet for detecting each phase of a three-phase winding, and a Hall sensor for detecting magnetism. ing.
  • a plurality of magnet insertion holes 22d are formed in the rotor core 220, and permanent magnets 22e are respectively inserted into the magnet insertion holes 22d.
  • permanent magnet 22e for example, a sintered magnet such as a rare earth magnet, a ferrite magnet, or an alnico magnet is used.
  • FIG. 8 is an explanatory view showing a schematic configuration of a rotor core constituting the rotor of FIG.
  • FIG. 9 is a schematic cross-sectional view taken along the line YY of FIG.
  • the rotor core 220 is formed by laminating a plurality of plate-like electromagnetic steel plates in order to suppress eddy current.
  • the plurality of electromagnetic steel plates are fixed by caulking portions 220a. That is, projections and grooves for caulking are respectively formed on the plurality of electromagnetic steel plates, and the caulking portion 220a is a portion where the projections are fitted into the grooves of the laminated electromagnetic steel plates as shown in FIG. is there.
  • FIG. 9 exemplifies a case where V-crimping is applied to the crimped portion 220a
  • circular crimping or the like may be applied to the crimped portion 220a.
  • FIG. 10 is a perspective view showing the stator of FIG.
  • FIG. 11 is a schematic view of the stator of FIG. 3 viewed from the axial direction side.
  • the outer side wall 311 of the stator 31 is provided with a positioning groove 31 c for determining the position in the rotational direction R.
  • the positioning groove 31c is formed along the axial direction Ax.
  • the stator 31 has a stator core 310 made of laminated steel plates, and a winding 320 made of three phases of U phase, V phase and W phase.
  • the stator core 310 is formed by laminating a plurality of electromagnetic steel plates in order to suppress eddy currents. Then, the plurality of electromagnetic steel plates constituting the stator core 310 are fixed by caulking or rivets, as with the rotor core 220.
  • the stator 31 has a terminal block provided with terminals, and lead wires extending from the windings 320 of the stator 31 are connected to the terminals. From the terminals of the stator 31, lead wires and the like for connecting the plurality of stators 31 in series extend to the outside.
  • a stator core 310 is formed by connecting 18 divided cores in an annular shape. Then, one of the dovetail grooves provided on the outer peripheral side of the 18 divided cores is a positioning groove 31c.
  • FIG. 12 is a perspective view showing the frame of FIG.
  • the frame portion 35 has a male portion 35 a which is a step formed along the outer periphery of one end portion.
  • the frame portion 35 has, at the other end thereof, a female portion 35b into which the male portion 35a is fitted.
  • the female portion 35b may not be processed at all as shown in FIG. 12, and may have, for example, one or a plurality of protrusions with which the tip of the male portion 35a abuts.
  • the frame portion 35 is formed using a steel material.
  • the frame portion 35 may be formed by rounding an iron pipe, or may be formed by processing a plate-like member into an annular shape.
  • FIG. 3 illustrates a configuration in which the protrusion 35 c and the groove 35 d are integrally formed. That is, the projection 35 c and the groove 35 d are formed in the entire area along the axial direction Ax by bending the frame 35 into a V-shaped cross section. In the case of such a configuration, when the protrusion 35 c and the groove 35 d of the frame 35 are attached to the stator 31, they may be formed in accordance with the positioning groove 31 c.
  • FIG. 13 is a side view showing a state in which the motor of FIG. 3 is assembled.
  • FIG. 14 is a schematic cross-sectional view taken along the line AA of FIG.
  • the core module 80 is configured of one rotor 22, one stator 31, and one frame portion 35.
  • the motor 10 has two core modules 80.
  • the rotors 22 of the plurality of core modules 80 are fixed to the shaft 21 at a predetermined interval.
  • the stator 31 is fixed to the frame portion 35.
  • the two frame portions 35 are fixed by welding or the like in a state in which the male portion 35a of the other frame portion 35 is fitted into the female portion 35b of one frame portion 35. That is, the frame portion 35 for fixing the stator 31 is a male portion 35a having a male shape, and a female having a female shape so that the motor 10 can combine any number of stators 31 according to a required output. And a portion 35b.
  • the distal end portion of the frame portion 35 in the other core modules 80 Length from the rear end portion of the stator 31 in one of the core module 80 and the length T 1 of the to the rear end of the frame portion 35, the distal end portion of the frame portion 35 in the other core modules 80 to the distal end to the stator 31 T 2 and is reserved for the connection work of the lead wire. That is, the gaps between the plurality of stators 31 are spaces for connecting the lead wires extending from the terminals of the respective stators 31 in order to connect the plurality of stators 31 in series. Therefore, the length T 1 and length T 2 are, suffices respectively about 1 cm. The shorter the length T 1 and long T 2, it is possible to shorten the length of the shaft 21 and the frame portion 35, it is possible to reduce the cost.
  • the electrical connection between the stators 31 is performed at the time of terminal line processing.
  • the first lid portion 40 is fixed by screwing or the like in a state in which the male portion 35a of the one frame portion 35 is fitted into the lid-side female portion 40b.
  • the second lid 50 is fixed by screwing or the like in a state in which the lid-side male portion 50 a is fitted into the female portion 35 b of the other frame 35.
  • FIG. 15 is a schematic cross-sectional view taken along the line BB of FIG.
  • FIG. 16 is an enlarged view of a part of the periphery of the positioning groove and the projection of FIG.
  • the projection 35 c of the frame 35 is fitted in the positioning groove 31 c of the stator 31 to position the frame 35 and the stator 31.
  • the positioning groove 31c is provided in the stator 31 so that the phases of the plurality of stators 31 do not shift when the stator assembly 30 is combined, and the stator 31 and the frame portion 35 can be positioned. It has become. Therefore, the assembly variation of the stator assembly 30 and the phase shift of the plurality of stators 31 can be suppressed.
  • the positioning of the shaft 21 and the rotor 22 is performed using the key portion 23. That is, by inserting the key portion 23 into the space formed by the shaft side key groove 21 c of the shaft 21 and the rotor side key groove 22 c of the rotor 22, positioning in the rotational direction R and the axial direction Ax is performed.
  • FIG. 16 exemplifies a state in which a gap is generated between the positioning groove 31c and the projection 35c, the invention is not limited thereto.
  • the entire surface of the projection 35c on the stator 31 side is the positioning groove 31c. You may contact it.
  • motor 10 may have three or more core modules 80. That is, with the configuration in the first embodiment, the motor 10 that exhibits various outputs can be manufactured by changing the number of core modules 80 to be combined. More specifically, the laminated thickness of the rotor core 220 and the stator core 310 is A [mm], and the number of core modules 80 that the motor 10 has is n (n is an arbitrary natural number). Then, the motor 10 can exhibit the same output as that in the case where the laminated thickness of the rotor core and the stator core, that is, the laminated thickness of the laminated steel plates is “nA”.
  • the motor 10 can be 40 [mm], 80 [mm], 120 [mm] ... by combining a plurality of core modules 80.
  • the output corresponding to the thickness of the stack can be exhibited.
  • FIG. 17 is a schematic cross-sectional view illustrating another configuration of the motor according to the first embodiment of the present invention.
  • the frame portion 35 of the motor 10 may have the female portion 35b disposed on the side in the axial direction Ax and the male portion 35a disposed on the opposite side in the axial direction.
  • the projection 35c of the frame 35 can be fitted into the positioning groove 31c of the stator 31, so that the stator 31 and the frame 35 can be positioned in the rotational direction R.
  • the male portion 35a of one frame portion 35 can be fitted into the female portion 35b of the other frame portion 35.
  • the motor 10 may have the second cover 50 provided on the side in the axial direction Ax and the first cover 40 provided on the opposite side in the axial direction. Then, the through hole 51 through which the shaft 21 passes may be provided in the second lid 50. In this case, the through hole 41 may not be provided in the first lid 40.
  • the second lid portion 50 may be fixed by screwing or the like in a state in which the lid-side male portion 50a is fitted in the female portion 35b of the one frame portion 35.
  • the first lid 40 may be fixed by screwing or the like in a state in which the male portion 35a of one frame portion 35 is fitted into the lid-side female portion 40b.
  • the frame portions 35 of the plurality of core modules 80 are connected along the axial direction Ax of the shaft 21, combining two or more core modules 80 Can change the overall output. Therefore, even in the case of increasing the types of output to be exhibited, it is possible to suppress the new construction of the manufacturing equipment and the mold and to improve the productivity. That is, since the motor 10 can exhibit various outputs by combining the core module 80 in which the rotor core 220 and the stator core 310 are modularized, costs such as equipment investment can be reduced.
  • a method of caulking is used at the time of pressing, a method of fixing using a rivet, or the like is used.
  • the limit is correlated with the height of the projections provided on the magnetic steel sheets. That is, when the laminated thickness of the laminated steel sheet exceeds a certain value, it becomes difficult to maintain the laminated strength. Therefore, conventionally, when the laminated thickness of the laminated steel sheet exceeds a certain value, additional processing using a rivet or the like is performed in order to suppress a fall during lamination.
  • the motor 10 is configured to connect in series a plurality of core modules 80 obtained by modularizing the rotor core 220 and the stator core 310 made of laminated steel plates.
  • an increase in the number of electromagnetic steel sheets constituting one rotor core 220 and one stator core 310 can be prevented, so that the laminated steel sheets can be stabilized.
  • the fixing operation using a rivet or the like can be reduced.
  • the motor 10 may be disposed such that the male portion 35 a of the frame portion 35 faces the axial direction Ax side. Then, in the motor 10, the first lid 40 is attached to the frame 35 of the core module 80 disposed closest to the axial direction Ax, and the second lid 50 is disposed core opposite to the axial direction. It may be attached to the frame portion 35 of the module 80. Further, as shown in FIG. 17, the motor 10 may be disposed so that the female portion 35b of the frame portion 35 faces the axial direction Ax side. Then, in the motor 10, the second lid 50 is attached to the frame 35 of the core module 80 disposed on the most axial direction Ax side, and the first lid 40 is disposed on the opposite axial direction side. It may be attached to the frame portion 35 of the module 80.
  • the motor 10 of the first embodiment can be changed in structure by changing the arrangement of the same parts.
  • FIG. 18 is a schematic cross-sectional view of a motor of the air conditioning apparatus according to Embodiment 2 of the present invention.
  • the overall configuration of the air conditioning apparatus of the second embodiment is the same as that of the first embodiment described above, so the same reference numerals will be used for the respective constituent members and the description will be omitted.
  • the motor 10 of the first embodiment is configured by combining a plurality of core modules 80 having the same laminated thickness of laminated steel plates.
  • the motor 110 of the second embodiment has at least two types of core modules having different laminated thicknesses of laminated steel plates.
  • the motor 110 has a core module 80A with a relatively small output and a core module 80B with a relatively large output.
  • the core module 80A has a rotor 22A and a stator 31A.
  • the length of the axial direction Ax of the frame portion 35 of the core module 80A is adjusted in accordance with the length of the axial direction Ax of the stator 31A.
  • the core module 80B has a rotor 22B and a stator 31B.
  • the length of the axial direction Ax of the frame portion 35 of the core module 80B is adjusted in accordance with the length of the axial direction Ax of the stator 31B. Therefore, by changing the respective numbers of core modules 80A and core modules 80B having different laminated thicknesses of the laminated steel plates, it is possible to configure the motor 110 that exerts a plurality of different outputs.
  • the laminated thickness of the rotor core 220A and the stator core 310A is A [mm]
  • the laminated thickness of the rotor core 220B and the stator core 310B is B [mm].
  • the number of core modules 80A included in the motor 110 is n (n is 0 or any natural number), and the number of core modules 80B included in the motor 110 is m (m is 0 or any natural number). Then, the motor 110 can exhibit the same output as in the case where the laminated thickness of the rotor core and the stator core, that is, the laminated thickness of the laminated steel plates is “nA + mB”.
  • a motor 110 having a stack thickness of five types of laminated steel plates of 40 [mm], 60 [mm], 80 [mm], 100 [mm], and 120 [mm].
  • FIG. 19 is a table exemplifying the configuration of a motor that can be realized by two types of core modules according to the second embodiment of the present invention.
  • a motor 110 having a laminated thickness of 40 [mm] can be manufactured. If one core module 80B is used, the motor 110 having a laminated thickness of 60 mm can be manufactured. If two core modules 80A are used, a motor 110 having a laminated thickness of 80 mm can be manufactured. By using one core module 80A and one core module 80B, it is possible to manufacture a motor 110 having a laminated thickness of 100 [mm].
  • the motor 110 having a laminated steel plate thickness of 120 mm can also be manufactured using two core modules 80B. By using two core modules 80A and one core module 80B, it is possible to manufacture the motor 110 having a laminated thickness of 140 [mm].
  • a motor 110 having a laminated thickness of 160 [mm] can also be manufactured using one core module 80A and two core modules 80B.
  • a motor 110 having a laminated thickness of 180 [mm] can be manufactured.
  • the motor 110 having a laminated thickness of 180 [mm] can also be manufactured using three core modules 80B.
  • the motor 110 according to the second embodiment can exhibit various outputs by combining two types of rotor cores and stator cores according to the output required for driving the load. That is, in the conventional motor structure, when the required output changes, it is necessary to newly manufacture the motor, so it is necessary to newly install a manufacturing facility and a mold.
  • the motor 110 is manufactured by combining two types of core modules modularized including a rotor core and a stator core.
  • the number of molds can be reduced compared to the conventional case, and the cost of equipment investment can be reduced. That is, if the structure of the motor 110 is adopted, the amount of investment can be greatly reduced.
  • FIGS. 18 and 19 show an example in which the motor 110 is configured by combining two core modules
  • the invention is not limited thereto, and the motor 110 may be configured by combining three or more core modules. Good.
  • the motor 110 in the plurality of core modules of the motor 110, all of the laminated thicknesses of the laminated steel plates may be different, or those having the same laminated thickness of the laminated steel plates may be included. In this way, although the number of molds is slightly increased, the output of the motor 110 can be changed more finely.
  • the motor 110 can adopt a configuration in which the arrangement of the frame portion 35, the first lid portion 40, and the second lid portion 50 is reversed.
  • the above-mentioned embodiment is a suitable example in a motor and an air harmony device, and the technical scope of the present invention is not limited to these modes.
  • the permanent magnet embedded motor having a rotor in which permanent magnets are embedded in the rotor core that is, an IPM motor
  • the invention is not limited thereto.
  • the motors 10 and 110 may be surface magnet type motors having a rotor having permanent magnets attached to the outer peripheral surface of the rotor core, that is, SPM (Surface Permanent Magnet) motors.
  • SPM Surface Permanent Magnet
  • the IPM motor can obtain reluctance torque in addition to the magnet torque resulting from the attraction and repulsion between the coil and the permanent magnet. Therefore, if the motors 10 and 110 adopt the structure of the IPM motor, they have higher torque and higher efficiency than the structure of the SPM motor.
  • the motor 10 in which the load is connected in only one direction is illustrated in each of the above-described embodiments, the present invention is not limited to this.
  • the motor 10 may be connected in both directions.
  • the axial direction Ax in this case is the direction of one of the loads on the shaft 21.
  • the through hole 51 for allowing the shaft 21 to penetrate is provided at the center of the second lid 50.
  • the shaft 21 extends in the opposite axial direction side with respect to the second bearing 25 and, similarly to the axial direction Ax side, passes through the through hole 51 of the second lid 50 and protrudes to the outside.
  • FIG. 14 and FIG. 18 the through hole 51 for allowing the shaft 21 to penetrate is provided at the center of the second lid 50.
  • the through hole 41 for allowing the shaft 21 to penetrate is provided at the center of the first lid 40.
  • the shaft 21 extends in the opposite axial direction side with respect to the second bearing 25 and, similarly to the axial direction Ax side, passes through the through hole 41 of the first lid 40 and protrudes to the outside.
  • one core module includes one stator 31 and one rotor 22.
  • One core module includes one stator 31 and one stator 31.
  • a plurality of rotors 22 may be included.
  • the key part 23 is the same number as the rotor 22 and the shaft 21 has the shaft side key groove 21c of the same number as the rotor 22 was illustrated in each said embodiment, it does not restrict to this.
  • the number of 23 and the shaft side key groove 21 c may be smaller than the number of rotors 22.
  • one key portion 23 may be provided, and the shaft side key groove 21 c may be provided at one position.
  • the length in the axial direction Ax of the key portion 23 and the shaft side key groove 21 c may be determined according to the length in the axial direction Ax of the plurality of rotors 22.
  • the positions of the shaft 21 and the plurality of rotors 22 in the rotational direction R can be determined.
  • the shaft 21 may be provided with a predetermined number of shaft-side key grooves 21c. In this way, an arbitrary number of rotors 22 equal to or less than the set number can be fixed to the shaft 21 according to the required output.
  • the dual suction type sirocco fan is illustrated as the fan 150, but the present invention is not limited to this. That is, the fan 150 may be a single suction type sirocco fan or a propeller fan.
  • FIG. 11 illustrates the stator 31 of 18 slots, the number of slots of the stator 31 is not limited thereto, and may be less than 18 or more than 18.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A motor having a plurality of core modules that comprise a rotor into which a shaft is inserted, a stator provided on the outer peripheral side of the rotor, and a frame part covering the outer periphery of the stator. The respective frame parts of the plurality of core modules are linked along the axial direction of the shaft.

Description

モータ及び空気調和装置Motor and air conditioner
　本発明は、インナーロータ型のモータ及びそのモータを備えた空気調和装置に関する。 The present invention relates to an inner rotor type motor and an air conditioner provided with the motor.
　インナーロータ型のモータは、ステータの内側に配置されたロータが回転するようになっている（例えば、特許文献１参照）。特許文献１のモータにおいて、ロータコア及びステータコアは、それぞれ、複数枚の電磁鋼板が積層された積層鋼板により形成されている。そして、ロータは、ロータコアの外周側に永久磁石を有している。 The inner rotor type motor is configured such that a rotor disposed inside a stator rotates (see, for example, Patent Document 1). In the motor of Patent Document 1, the rotor core and the stator core are each formed of laminated steel plates in which a plurality of electromagnetic steel plates are laminated. And a rotor has a permanent magnet in the perimeter side of a rotor core.
　モータは、空気調和装置などの種々の機器に搭載され、ファンなどの動力源として駆動する。空気調和装置は、ファン又は圧縮機などを駆動するための複数のモータを有しており、各モータに要求される出力範囲は、駆動する対象により異なっている。モータを搭載する機器の大型化が進むと共に、モータの出力の増大が求められている。そこで、従来は、ロータコア及びステータコアにおける積層鋼板の積厚を大きくすることにより、モータの出力を増やしている。 The motor is mounted on various devices such as an air conditioner and driven as a power source such as a fan. The air conditioner has a plurality of motors for driving a fan or a compressor, and the output range required for each motor differs depending on the object to be driven. As the size of the device on which the motor is mounted is increased, the output of the motor is required to be increased. Therefore, conventionally, the output of the motor is increased by increasing the thickness of laminated steel plates in the rotor core and the stator core.
特開２００７－２２８７３６号公報JP 2007-228736 A
　しかしながら、特許文献１のようなモータにおいて、ロータコア及びステータコアにおける積層鋼板の積厚を大きくすると、製造設備及び金型の改造又は新設が必要となる。そして、異なる出力のモータごとに、ロータコア及びステータコアの大きさが異なるため、金型交換などの製造時における段取り替えに時間がかかり、生産性が低下するという課題がある。 However, in the motor as disclosed in Patent Document 1, when the laminated thickness of the laminated steel plates in the rotor core and the stator core is increased, it is necessary to remodel or install the manufacturing equipment and the mold. And since the size of a rotor core and a stator core differs for every motor of a different output, it takes time for setup change at the time of manufacture of mold exchange etc., and there is a subject that productivity falls.
　本発明は、上記のような課題を解決するためになされたものであり、出力の異なる種々のモータを製造する場合でも、製造設備及び金型の新設等を抑制し、生産性の向上を図るモータ及び空気調和装置を提供することを目的とする。 The present invention has been made to solve the above-described problems, and, even when manufacturing various motors having different outputs, it is possible to suppress the installation of manufacturing facilities and molds and to improve the productivity. An object of the present invention is to provide a motor and an air conditioner.
　本発明に係るモータは、シャフトと、シャフトが挿入されるロータ、ロータの外周側に設けられるステータ、及びステータの外周を覆うフレーム部からなる複数のコアモジュールと、を有し、複数のコアモジュールのそれぞれのフレーム部は、シャフトの軸方向に沿って連結されている。本発明に係る空気調和装置は、上記のモータと、モータを動力源として回転するファンと、を有している。 A motor according to the present invention includes a plurality of core modules including a shaft, a rotor into which the shaft is inserted, a stator provided on the outer peripheral side of the rotor, and a plurality of core modules including frame portions covering the outer periphery of the stator The respective frame parts of are connected along the axial direction of the shaft. An air conditioner according to the present invention includes the above-described motor and a fan that rotates using the motor as a power source.
　本発明によれば、複数のコアモジュールのそれぞれのフレーム部がシャフトの軸方向に沿って連結されることから、２以上のコアモジュールを組み合わせることにより、全体での出力を設定することができる。そのため、発揮する出力の種類を増やす場合でも、製造設備及び金型の新設等を抑制し、生産性の向上を図ることができる。 According to the present invention, since the respective frame parts of the plurality of core modules are connected along the axial direction of the shaft, the overall output can be set by combining two or more core modules. Therefore, even in the case of increasing the types of output to be exhibited, it is possible to suppress the new construction of the manufacturing equipment and the mold and to improve the productivity.
本発明の実施の形態１に係る空気調和装置の外観斜視図である。It is an external appearance perspective view of the air conditioning apparatus which concerns on Embodiment 1 of this invention. 図１の空気調和装置を前面側からみた正面図である。It is the front view which saw the air conditioning apparatus of FIG. 1 from the front side. 図１及び図２に示すモータの分解斜視図である。FIG. 3 is an exploded perspective view of the motor shown in FIGS. 1 and 2; 図３のシャフトを部分的に示す斜視図である。It is a perspective view which shows the shaft of FIG. 3 partially. 図３のロータを示す斜視図である。FIG. 4 is a perspective view of the rotor of FIG. 3; 図４のシャフトと図５のロータとを組み立てた状態を例示した斜視図である。It is the perspective view which illustrated the state which assembled the shaft of FIG. 4 and the rotor of FIG. 図３のロータを軸方向側からみた概略図である。It is the schematic which looked at the rotor of FIG. 3 from the axial direction side. 図３のロータを構成するロータコアの概略構成を示す説明図である。It is explanatory drawing which shows schematic structure of the rotor core which comprises the rotor of FIG. 図８のＹ－Ｙ線に沿った概略断面図である。FIG. 9 is a schematic cross-sectional view along the line Y-Y of FIG. 8; 図３のステータを示す斜視図である。It is a perspective view which shows the stator of FIG. 図３のステータを軸方向側からみた概略図である。It is the schematic which saw the stator of FIG. 3 from the axial direction side. 図３のフレームを示す斜視図である。It is a perspective view which shows the flame | frame of FIG. 図３のモータを組み立てた状態を示す側面図である。It is a side view which shows the state which assembled the motor of FIG. 図１３のＡ－Ａ線に沿った概略断面図である。FIG. 14 is a schematic cross-sectional view along the line AA of FIG. 13; 図１３のＢ－Ｂ線に沿った概略断面図である。FIG. 14 is a schematic cross-sectional view along the line BB of FIG. 13; 図１５の位置決め溝及び突起部の周辺を部分的に抜き出した拡大図である。It is the enlarged view which extracted the periphery of the positioning groove and protrusion of FIG. 15 partially. 本発明の実施の形態１のモータの他の構成を例示する概略断面図である。FIG. 5 is a schematic cross-sectional view illustrating another configuration of the motor according to the first embodiment of the present invention. 本発明の実施の形態２に係る空気調和装置が有するモータの概略断面図である。It is a schematic sectional drawing of the motor which the air conditioning apparatus which concerns on Embodiment 2 of this invention has. 本発明の実施の形態２につき、２種類のコアモジュールで実現できるモータの構成を例示した表である。It is the table | surface which illustrated the structure of the motor which can be implement | achieved by two types of core modules about Embodiment 2 of this invention.
実施の形態１．
　図１は、本発明の実施の形態１に係る空気調和装置の外観斜視図である。図２は、図１の空気調和装置を前面側からみた正面図である。図１及び図２に基づき、本実施の形態の空気調和装置の全体的な構成について説明する。 Embodiment 1
FIG. 1 is an external perspective view of an air conditioning apparatus according to Embodiment 1 of the present invention. FIG. 2 is a front view of the air conditioner of FIG. 1 as viewed from the front side. The overall configuration of the air conditioner according to the present embodiment will be described based on FIGS. 1 and 2.
　本実施の形態１における空気調和装置１００は、熱媒体を循環させる配管を介して、屋外などに設置された熱源機（図示せず）に接続されている。空気調和装置１００は、熱源機にて排熱又は吸熱された熱媒体を循環させ、空調対象空間の空気を循環させることにより、空調対象空間の空気調和を行うものである。 The air conditioning apparatus 100 according to the first embodiment is connected to a heat source machine (not shown) installed outdoors or the like through a pipe that circulates a heat medium. The air conditioning apparatus 100 performs air conditioning of a space to be air-conditioned by circulating a heat medium subjected to exhaust heat or heat absorption by a heat source machine and circulating air in the space to be air-conditioned.
　図１及び図２に示すように、空気調和装置１００は筐体１０１を有している。筐体１０１の上部には、空気を吹き出す吹出口１０２が設けられている。筐体１０１の前面側には、空気を吸い込む前面吸込口１０３が設けられている。加えて、図示はしていないが、筐体１０１の背面側には、空気を吸い込む背面吸込口が設けられている。空気調和装置１００は、例えば、空調対象空間の床面に設置され、吹出口１０２の周囲に形成された吹出フランジ１０２ａが、空調対象空間の天井などに配置された吹出ダクトに接続されている。 As shown in FIG. 1 and FIG. 2, the air conditioning apparatus 100 has a housing 101. At an upper portion of the housing 101, an air outlet 102 for blowing air is provided. A front suction port 103 for sucking air is provided on the front side of the housing 101. In addition, although not shown, the rear side of the housing 101 is provided with a rear suction port for drawing air. The air conditioning apparatus 100 is installed, for example, on the floor surface of the air conditioning target space, and a blowout flange 102a formed around the blowout port 102 is connected to a blowout duct disposed on a ceiling of the air conditioning target space.
　空気調和装置１００は、モータ１０と、モータ１０を動力源として回転するファン１５０と、を有している。モータ１０及びファン１５０は、筐体１０１の内部に設けられている。空気調和装置１００は、図示はしていないが、熱源機から流入する熱媒体と、前面吸込口１０３などから吸い込まれる空気との間で熱交換させる熱交換器を有している。熱交換器は、例えばフィンアンドチューブ型熱交換器からなり、筐体１０１内に斜めに配置されている。 The air conditioning apparatus 100 includes a motor 10 and a fan 150 that rotates using the motor 10 as a power source. The motor 10 and the fan 150 are provided inside the housing 101. Although not shown, the air conditioning apparatus 100 has a heat exchanger that exchanges heat between a heat medium flowing from a heat source unit and air sucked from the front suction port 103 or the like. The heat exchanger is, for example, a fin-and-tube heat exchanger, and is disposed obliquely in the housing 101.
　ファン１５０は、例えば遠心式のシロッコファンからなり、複数の羽根が円筒形状に配置されている。図１及び図２では、ファン１５０として、両吸込形のシロッコファンを例示している。ファン１５０は、前面吸込口１０３などから吸い込まれ、熱交換器を通過した空気を吹出口１０２へ送るものである。ファン１５０により吹出口１０２へ送られた空気は、吹出ダクトを通過し、再び空調対象空間へ供給される。 The fan 150 is, for example, a centrifugal sirocco fan, and a plurality of blades are arranged in a cylindrical shape. In FIGS. 1 and 2, a dual suction type sirocco fan is illustrated as the fan 150. The fan 150 sucks air from the front suction port 103 or the like and sends the air that has passed through the heat exchanger to the blowout port 102. The air sent to the air outlet 102 by the fan 150 passes through the air outlet duct and is supplied again to the air conditioning target space.
　図３は、図１及び図２に示すモータの分解斜視図である。図３に示すように、モータ１０は、シャフト２１と、シャフト２１が挿入されるロータ２２、ロータ２２の外周側に設けられるステータ３１、及びステータ３１の外周を囲うフレーム部３５を備えた複数のコアモジュール８０と、を有している。複数のコアモジュール８０のそれぞれのフレーム部３５は、シャフト２１の軸方向Ａｘに沿って連結されている。言い換えると、モータ１０は、ロータ組立体２０と、複数のステータ組立体３０と、を有している。また、モータ１０は、第１蓋部４０と、第２蓋部５０と、を有している。 FIG. 3 is an exploded perspective view of the motor shown in FIGS. 1 and 2. As shown in FIG. 3, the motor 10 includes a shaft 21, a rotor 22 into which the shaft 21 is inserted, a stator 31 provided on the outer peripheral side of the rotor 22, and a plurality of frame portions 35 surrounding the outer periphery of the stator 31. And a core module 80. The frame portions 35 of the plurality of core modules 80 are connected along the axial direction Ax of the shaft 21. In other words, the motor 10 includes the rotor assembly 20 and a plurality of stator assemblies 30. The motor 10 also has a first cover 40 and a second cover 50.
　ロータ組立体２０は、シャフト２１と、シャフト２１が挿入される複数のロータ２２と、第１ベアリング２４と、第２ベアリング２５と、により構成されている。ロータ組立体２０は、ステータ組立体３０と同数のロータ２２が一本のシャフト２１に固定された構造となっている。 The rotor assembly 20 includes a shaft 21, a plurality of rotors 22 into which the shaft 21 is inserted, a first bearing 24, and a second bearing 25. The rotor assembly 20 has a structure in which the same number of rotors 22 as the stator assembly 30 are fixed to one shaft 21.
　シャフト２１は、例えばＳ４５Ｃなどの機械構造用炭素鋼を材料とする鋼材で形成されている。シャフト２１には、複数のロータ２２が固定されている。複数のロータ２２には、それぞれ、ロータ側キー溝２２ｃが設けられている。 The shaft 21 is made of, for example, a steel material made of carbon steel for machine structure such as S45C. A plurality of rotors 22 are fixed to the shaft 21. Each of the plurality of rotors 22 is provided with a rotor side key groove 22c.
　第１ベアリング２４は、複数のロータ２２の一端側において、シャフト２１に圧入されて固定されている。第２ベアリング２５は、複数のロータ２２の他端側において、シャフト２１に圧入されて固定されている。本実施の形態１では、シャフト２１の軸方向Ａｘ側に、負荷としてのファン１５０が設けられる。つまり、第１ベアリング２４は、モータ１０の負荷側において、第１蓋部４０を介してシャフト２１を支え、第２ベアリング２５は、モータ１０の反負荷側において、第２蓋部５０を介してシャフト２１を支える。ここで、本実施の形態１において、軸方向Ａｘは、シャフト２１における負荷側の方向であり、モータ１０を取り付ける方向に応じて上下左右などの各方向となる。 The first bearing 24 is press-fitted and fixed to the shaft 21 at one end side of the plurality of rotors 22. The second bearing 25 is press-fit and fixed to the shaft 21 at the other end side of the plurality of rotors 22. In the first embodiment, a fan 150 as a load is provided on the axial direction Ax side of the shaft 21. That is, the first bearing 24 supports the shaft 21 via the first cover 40 on the load side of the motor 10, and the second bearing 25 via the second cover 50 on the non-load side of the motor 10. Support the shaft 21. Here, in the first embodiment, the axial direction Ax is the direction on the load side of the shaft 21 and corresponds to each direction such as up, down, left, and right according to the direction in which the motor 10 is attached.
　ステータ組立体３０は、ロータ２２の外周側に設けられるステータ３１と、ステータ３１の外周を覆うフレーム部３５と、により構成される。ステータ組立体３０は、ステータ３１とフレーム部３５とが溶接などにより一体的に組立てられたものである。 The stator assembly 30 includes a stator 31 provided on the outer peripheral side of the rotor 22 and a frame portion 35 covering the outer periphery of the stator 31. The stator assembly 30 is one in which the stator 31 and the frame portion 35 are integrally assembled by welding or the like.
　フレーム部３５は、ステータ組立体３０の外郭を形成する外郭部品である。フレーム部３５は、軸方向Ａｘにおける一方の端部にオス部３５ａが形成され、他方の端部にメス部３５ｂが形成されている。よって、２つのフレーム部３５は、一方のフレーム部３５のオス部３５ａが、他方のフレーム部３５のメス部３５ｂに嵌め込まれて連結されている。 The frame portion 35 is an outer shell component that forms an outer shell of the stator assembly 30. In the frame portion 35, a male portion 35a is formed at one end in the axial direction Ax, and a female portion 35b is formed at the other end. Therefore, in the two frame parts 35, the male part 35a of one frame part 35 is fitted into the female part 35b of the other frame part 35 and connected.
　フレーム部３５は、ステータコアに対向する内側壁３５１に突起部３５ｃを有している。フレーム部３５のメス部３５ｂの外周側には、突起部３５ｃに対応する溝部３５ｄが形成されている。すなわち、隣接する２つのフレーム部３５では、一方のフレーム部３５の突起部３５ｃが、他方のフレーム部３５の溝部３５ｄに嵌められている。突起部３５ｃ及び溝部３５ｄは、複数のフレーム部３５同士の回転方向Ｒにおける位置を決めるためのものである。本実施の形態１において、突起部３５ｃ及び溝部３５ｄは、軸方向Ａｘに沿って形成されている。 The frame portion 35 has a protrusion 35 c on the inner side wall 351 facing the stator core. A groove 35 d corresponding to the protrusion 35 c is formed on the outer peripheral side of the female portion 35 b of the frame 35. That is, in the two adjacent frame portions 35, the protrusions 35c of one frame portion 35 are fitted in the grooves 35d of the other frame portion 35. The protrusion 35 c and the groove 35 d are for determining the positions of the plurality of frame portions 35 in the rotational direction R. In the first embodiment, the protrusion 35 c and the groove 35 d are formed along the axial direction Ax.
　第１蓋部４０は、複数のステータ組立体３０の一端側のフレーム部３５に取り付けられる。すなわち、第１蓋部４０は、複数のフレーム部３５のうちで最も軸方向Ａｘ側のフレーム部３５に、ネジ止めなどによって取り付けられる。本実施の形態１において、第１蓋部４０には、フレーム部３５と対向する側に、フレーム部３５のオス部３５ａが嵌め込まれる蓋側メス部４０ｂが形成されている。蓋側メス部４０ｂの内周側には、フレーム部３５の溝部３５ｄに嵌められる蓋側突起４０ｄが形成されている。蓋側突起４０ｄは、第１蓋部４０の回転方向Ｒの位置決めに用いられる。 The first lid 40 is attached to the frame 35 at one end of the plurality of stator assemblies 30. That is, the first lid portion 40 is attached to the frame portion 35 closest to the axial direction Ax among the plurality of frame portions 35 by screwing or the like. In the first embodiment, a lid-side female portion 40b into which the male portion 35a of the frame portion 35 is fitted is formed on the first lid portion 40 on the side facing the frame portion 35. On the inner peripheral side of the lid-side female portion 40b, a lid-side protrusion 40d to be fitted into the groove 35d of the frame portion 35 is formed. The lid side protrusion 40 d is used to position the first lid 40 in the rotational direction R.
　第２蓋部５０は、複数のステータ組立体３０の他端側のフレーム部３５に取り付けられる。すなわち、第２蓋部５０は、複数のフレーム部３５のうちで最も反軸方向側のフレーム部３５に、ネジ止めなどによって取り付けられる。ここで、反軸方向とは、軸方向Ａｘとは反対側の方向である。本実施の形態１において、第２蓋部５０には、フレーム部３５と対向する側に、フレーム部３５のメス部３５ｂに嵌め込まれる蓋側オス部５０ａが形成されている。蓋側オス部５０ａの外周側には、フレーム部３５の突起部３５ｃが嵌められる蓋側溝部５０ｃが形成されている。蓋側溝部５０ｃは、第２蓋部５０の回転方向Ｒの位置決めに用いられる。 The second lid 50 is attached to the frame 35 on the other end side of the plurality of stator assemblies 30. That is, the second lid 50 is attached to the frame portion 35 closest to the axial direction among the plurality of frame portions 35 by screwing or the like. Here, the anti-axial direction is the direction opposite to the axial direction Ax. In the first embodiment, on the side facing the frame portion 35, the lid side male portion 50a to be fitted into the female portion 35b of the frame portion 35 is formed in the second lid portion 50. A lid-side groove 50c to which the projection 35c of the frame 35 is fitted is formed on the outer peripheral side of the lid-side male portion 50a. The lid-side groove 50 c is used to position the second lid 50 in the rotational direction R.
　第１蓋部４０の中心部には、シャフト２１が貫通する貫通穴４１が形成されている。第１蓋部４０のフレーム部３５に対向する側には、第１ベアリング２４が嵌め込まれるベアリングハウジング４４が形成されている。第１ベアリング２４は、ベアリングハウジング４４に圧入される。第２蓋部５０のフレーム部３５に対向する側には、第２ベアリング２５が嵌め込まれるベアリングハウジング５５が形成されている。第２ベアリング２５は、ベアリングハウジング５５に圧入される。すなわち、ロータ組立体２０は、第１ベアリング２４と第２ベアリング２５とにより固定されている。 A through hole 41 through which the shaft 21 passes is formed at the center of the first lid 40. A bearing housing 44 in which the first bearing 24 is fitted is formed on the side of the first lid 40 opposite to the frame 35. The first bearing 24 is press-fit into the bearing housing 44. On the side of the second lid 50 opposite to the frame portion 35, a bearing housing 55 in which the second bearing 25 is fitted is formed. The second bearing 25 is press-fit into the bearing housing 55. That is, the rotor assembly 20 is fixed by the first bearing 24 and the second bearing 25.
　第１蓋部４０及び第２蓋部５０は、鋼材又は繊維強化プラスチックなどの樹脂により形成される。第１蓋部４０及び第２蓋部５０は、材料として鋼材を用いる場合、アルミダイカスト製法により形成することができる。もっとも、第１蓋部４０及び第２蓋部５０は、アルミダイカスト製法以外の製法により形成された鋳物であってもよい。 The first lid 40 and the second lid 50 are formed of a resin such as steel or fiber reinforced plastic. When using a steel material as a material, the 1st cover part 40 and the 2nd cover part 50 can be formed by the aluminum die-cast manufacturing method. However, the first lid 40 and the second lid 50 may be castings formed by a method other than the aluminum die casting method.
　図４は、図３のシャフトを部分的に示す斜視図である。図５は、図３のロータを示す斜視図である。図６は、図４のシャフトと図５のロータとを組み立てた状態を例示した斜視図である。図４～図６に基づき、ロータ２２をシャフト２１の所定の位置に固定するための構造について説明する。 FIG. 4 is a perspective view partially showing the shaft of FIG. FIG. 5 is a perspective view showing the rotor of FIG. 6 is a perspective view illustrating the shaft of FIG. 4 and the rotor of FIG. 5 in an assembled state. The structure for fixing the rotor 22 at a predetermined position of the shaft 21 will be described with reference to FIGS. 4 to 6.
　図６に示すように、ロータ組立体２０は、シャフト２１とロータ２２との回転方向Ｒにおける位置を決めるための棒状のキー部２３を有している。図４に示すように、シャフト２１は、キー部２３が嵌められる軸側キー溝２１ｃを有している。図５に示すように、ロータ２２は、シャフト２１が挿入される挿入孔２２ａと、キー部２３が嵌められるロータ側キー溝２２ｃと、を有している。ロータ側キー溝２２ｃは、各ロータ２２同士の位相がズレないようにするためのものであり、後述するキー部２３が嵌められる。 As shown in FIG. 6, the rotor assembly 20 has a bar-shaped key portion 23 for determining the position of the shaft 21 and the rotor 22 in the rotational direction R. As shown in FIG. 4, the shaft 21 has a shaft side key groove 21 c in which the key portion 23 is fitted. As shown in FIG. 5, the rotor 22 has an insertion hole 22 a into which the shaft 21 is inserted, and a rotor-side key groove 22 c into which the key portion 23 is fitted. The rotor side key groove 22 c is for preventing the phases of the respective rotors 22 from shifting, and the key portion 23 described later is fitted.
　すなわち、図６のように、軸側キー溝２１ｃとロータ側キー溝２２ｃとの間にキー部２３を嵌め込むことにより、複数のロータ２２同士の回転方向Ｒにおける位置を揃えることができる。よって、ロータ組立体２０の組立ばらつきと、複数のロータ２２同士の位相のズレとを抑制することができる。すなわち、シャフト２１と複数のロータ２２とは、キー部２３によって固定される。 That is, as shown in FIG. 6, by fitting the key portion 23 between the shaft side key groove 21c and the rotor side key groove 22c, the positions of the plurality of rotors 22 in the rotational direction R can be aligned. Therefore, assembly variation of the rotor assembly 20 and a phase shift between the plurality of rotors 22 can be suppressed. That is, the shaft 21 and the plurality of rotors 22 are fixed by the key portion 23.
　また、モータ１０において、キー部２３は、ロータ２２と同数であり、シャフト２１は、ロータ２２と同数の軸側キー溝２１ｃを有している。そして、１つのキー部２３と、１つの軸側キー溝２１ｃと、１つのロータ側キー溝２２ｃとが対応づけて配置される。かかる構造により、モータ１０は、複数のロータ２２の軸方向Ａｘにおける位置決めも行うことができる。 In the motor 10, the key portion 23 has the same number as that of the rotor 22, and the shaft 21 has the same number of shaft-side key grooves 21c as that of the rotor 22. Then, one key portion 23, one shaft side key groove 21c, and one rotor side key groove 22c are arranged in association with each other. With this structure, the motor 10 can also position the plurality of rotors 22 in the axial direction Ax.
　図７は、図３のロータを軸方向側からみた概略図である。図７に示すように、ロータ２２は、積層鋼板からなるロータコア２２０を有している。本実施の形態１では、モータ１０として、ＩＰＭ（Ｉｎｔｅｒｉｏｒ　Ｐｅｒｍａｎｅｎｔ　Ｍａｇｎｅｔ）モータを例示している。ＩＰＭモータは、ロータコアに永久磁石が埋め込まれたロータを有する永久磁石埋め込み型モータであり、三相巻線の各相を検知するセンサーマグネットと、磁気を検知するためのホールセンサと、を有している。 7 is a schematic view of the rotor of FIG. 3 viewed from the axial direction side. As shown in FIG. 7, the rotor 22 has a rotor core 220 made of laminated steel plates. In the first embodiment, an IPM (Interior Permanent Magnet) motor is illustrated as the motor 10. The IPM motor is a permanent magnet embedded type motor having a rotor in which permanent magnets are embedded in a rotor core, and has a sensor magnet for detecting each phase of a three-phase winding, and a Hall sensor for detecting magnetism. ing.
　すなわち、ロータコア２２０には、複数の磁石挿入穴２２ｄが形成されており、各磁石挿入穴２２ｄには、それぞれ、永久磁石２２ｅが挿入されている。永久磁石２２ｅとしては、例えば、希土類磁石、フェライト磁石、又はアルニコ磁石などの焼結磁石が用いられる。 That is, a plurality of magnet insertion holes 22d are formed in the rotor core 220, and permanent magnets 22e are respectively inserted into the magnet insertion holes 22d. As permanent magnet 22e, for example, a sintered magnet such as a rare earth magnet, a ferrite magnet, or an alnico magnet is used.
　図８は、図３のロータを構成するロータコアの概略構成を示す説明図である。図９は、図８のＹ－Ｙ線に沿った概略断面図である。ロータコア２２０は、渦電流の抑制を図るため、複数枚の板状の電磁鋼板が積層されて形成されている。ロータコア２２０において、複数の電磁鋼板は、カシメ部２２０ａにより固定されている。すなわち、複数の電磁鋼板には、それぞれ、カシメ用の突起及び溝が形成されており、カシメ部２２０ａは、図９に示すように、積層された電磁鋼板の溝に突起が嵌め込まれた部分である。 FIG. 8 is an explanatory view showing a schematic configuration of a rotor core constituting the rotor of FIG. FIG. 9 is a schematic cross-sectional view taken along the line YY of FIG. The rotor core 220 is formed by laminating a plurality of plate-like electromagnetic steel plates in order to suppress eddy current. In the rotor core 220, the plurality of electromagnetic steel plates are fixed by caulking portions 220a. That is, projections and grooves for caulking are respectively formed on the plurality of electromagnetic steel plates, and the caulking portion 220a is a portion where the projections are fitted into the grooves of the laminated electromagnetic steel plates as shown in FIG. is there.
　図９では、カシメ部２２０ａにＶカシメを適用した場合を例示しているが、カシメ部２２０ａには丸カシメなどを適用してもよい。ところで、カシメによって固定できる電磁鋼板の枚数には限界がある。そのため、電磁鋼板の枚数が一定枚数を超える場合は、複数の電磁鋼板を、リベットなどを用いて固定してもよい。 Although FIG. 9 exemplifies a case where V-crimping is applied to the crimped portion 220a, circular crimping or the like may be applied to the crimped portion 220a. By the way, there is a limit to the number of electromagnetic steel plates that can be fixed by caulking. Therefore, when the number of electromagnetic steel sheets exceeds a certain number, a plurality of electromagnetic steel sheets may be fixed using rivets or the like.
　図１０は、図３のステータを示す斜視図である。図１１は、図３のステータを軸方向側からみた概略図である。図１０及び図１１に示すように、ステータ３１の外側壁３１１には、回転方向Ｒの位置を決めるための位置決め溝３１ｃが設けられている。本実施の形態１において、位置決め溝３１ｃは、軸方向Ａｘに沿って形成されている。図１１に示すように、ステータ３１は、積層鋼板からなるステータコア３１０と、Ｕ相、Ｖ相、及びＷ相の三相からなる巻線３２０と、を有している。 FIG. 10 is a perspective view showing the stator of FIG. FIG. 11 is a schematic view of the stator of FIG. 3 viewed from the axial direction side. As shown in FIGS. 10 and 11, the outer side wall 311 of the stator 31 is provided with a positioning groove 31 c for determining the position in the rotational direction R. In the first embodiment, the positioning groove 31c is formed along the axial direction Ax. As shown in FIG. 11, the stator 31 has a stator core 310 made of laminated steel plates, and a winding 320 made of three phases of U phase, V phase and W phase.
　つまり、ステータコア３１０は、ロータコア２２０と同様、渦電流の抑制を図るため、複数の電磁鋼板が積層されて形成されている。そして、ステータコア３１０を構成する複数の電磁鋼板は、ロータコア２２０と同様、カシメ又はリベットなどによって固定されている。また、図示はしていないが、ステータ３１は、端子が設けられた端子台を有しており、ステータ３１の巻線３２０から延びるリード線は端子に接続されている。ステータ３１の端子からは、複数のステータ３１を直列に接続するためのリード線などが外部に延びている。 That is, as in the case of the rotor core 220, the stator core 310 is formed by laminating a plurality of electromagnetic steel plates in order to suppress eddy currents. Then, the plurality of electromagnetic steel plates constituting the stator core 310 are fixed by caulking or rivets, as with the rotor core 220. Although not shown, the stator 31 has a terminal block provided with terminals, and lead wires extending from the windings 320 of the stator 31 are connected to the terminals. From the terminals of the stator 31, lead wires and the like for connecting the plurality of stators 31 in series extend to the outside.
　図１１に例示する１８スロットのステータ３１において、ステータコア３１０は、１８個の分割コアが円環状に接続されたものである。そして、１８個の分割コアの外周側に設けられたアリ溝のうちの１つが位置決め溝３１ｃとなっている。 In an 18-slot stator 31 illustrated in FIG. 11, a stator core 310 is formed by connecting 18 divided cores in an annular shape. Then, one of the dovetail grooves provided on the outer peripheral side of the 18 divided cores is a positioning groove 31c.
　図１２は、図３のフレームを示す斜視図である。フレーム部３５は、一方の端部の外周に沿って形成された段差であるオス部３５ａを有している。また、フレーム部３５は、他方の端部に、オス部３５ａが嵌められるメス部３５ｂを有している。メス部３５ｂは、図１２のように、何ら加工が施されていなくてもよく、例えばオス部３５ａの先端部が当接する１又は複数の突起を有していてもよい。 FIG. 12 is a perspective view showing the frame of FIG. The frame portion 35 has a male portion 35 a which is a step formed along the outer periphery of one end portion. In addition, the frame portion 35 has, at the other end thereof, a female portion 35b into which the male portion 35a is fitted. The female portion 35b may not be processed at all as shown in FIG. 12, and may have, for example, one or a plurality of protrusions with which the tip of the male portion 35a abuts.
　フレーム部３５は、鋼材を使用して形成されている。フレーム部３５は、鉄管を輪切りにすることで形成してもよく、板状の部材を環状に加工することにより形成してもよい。ところで、図３では、突起部３５ｃと溝部３５ｄとが一体的に形成された構成を例示している。すなわち、突起部３５ｃ及び溝部３５ｄは、フレーム部３５が断面Ｖ字状に曲げられることにより、軸方向Ａｘに沿った全域に形成されている。かかる構成の場合、フレーム部３５の突起部３５ｃ及び溝部３５ｄは、ステータ３１に取り付ける際に、位置決め溝３１ｃに合わせて形成するようにしてもよい。 The frame portion 35 is formed using a steel material. The frame portion 35 may be formed by rounding an iron pipe, or may be formed by processing a plate-like member into an annular shape. By the way, FIG. 3 illustrates a configuration in which the protrusion 35 c and the groove 35 d are integrally formed. That is, the projection 35 c and the groove 35 d are formed in the entire area along the axial direction Ax by bending the frame 35 into a V-shaped cross section. In the case of such a configuration, when the protrusion 35 c and the groove 35 d of the frame 35 are attached to the stator 31, they may be formed in accordance with the positioning groove 31 c.
　図１３は、図３のモータを組み立てた状態を示す側面図である。図１４は、図１３のＡ－Ａ線に沿った概略断面図である。図１３及び図１４に示すように、コアモジュール８０は、１つのロータ２２と、１つのステータ３１と、１つのフレーム部３５とにより構成されている。図１３及び図１４の例において、モータ１０は、２つのコアモジュール８０を有している。 FIG. 13 is a side view showing a state in which the motor of FIG. 3 is assembled. FIG. 14 is a schematic cross-sectional view taken along the line AA of FIG. As shown in FIGS. 13 and 14, the core module 80 is configured of one rotor 22, one stator 31, and one frame portion 35. In the example of FIG. 13 and FIG. 14, the motor 10 has two core modules 80.
　複数のコアモジュール８０のそれぞれのロータ２２は、シャフト２１に一定の間隔を隔てて固定されている。各コアモジュール８０において、ステータ３１は、フレーム部３５に固定されている。２つのフレーム部３５は、一方のフレーム部３５のメス部３５ｂに、他方のフレーム部３５のオス部３５ａが嵌め込まれた状態で、溶接などにより固定されている。すなわち、モータ１０は、要求される出力に応じて任意の数のステータ３１を組み合わせることができるよう、ステータ３１を固定するフレーム部３５が、オス形状であるオス部３５ａと、メス形状であるメス部３５ｂと、を有している。 The rotors 22 of the plurality of core modules 80 are fixed to the shaft 21 at a predetermined interval. In each core module 80, the stator 31 is fixed to the frame portion 35. The two frame portions 35 are fixed by welding or the like in a state in which the male portion 35a of the other frame portion 35 is fitted into the female portion 35b of one frame portion 35. That is, the frame portion 35 for fixing the stator 31 is a male portion 35a having a male shape, and a female having a female shape so that the motor 10 can combine any number of stators 31 according to a required output. And a portion 35b.
　一方のコアモジュール８０におけるステータ３１の後端部からフレーム部３５の後端部までの長さＴ１と、他方のコアモジュール８０におけるフレーム部３５の先端部からステータ３１に先端部までの長さＴ２とは、リード線の接続作業用に確保されている。すなわち、複数のステータ３１の間の隙間は、複数のステータ３１を直列接続するために、各ステータ３１の端子から延びるリード線を接続するための空間である。したがって、長さＴ１と長さＴ２とは、それぞれ１ｃｍ程度あればよい。長さＴ１及び長さＴ２を短くすれば、シャフト２１及びフレーム部３５の長さを短くすることができるため、コストの削減を図ることができる。なお、各ステータ３１間の電気的接続は、端末線処理時に実施される。 Length from the rear end portion of the stator 31 in one of the core module 80 and the length T 1 of the to the rear end of the frame portion 35, the distal end portion of the frame portion 35 in the other core modules 80 to the distal end to the stator 31 T 2 and is reserved for the connection work of the lead wire. That is, the gaps between the plurality of stators 31 are spaces for connecting the lead wires extending from the terminals of the respective stators 31 in order to connect the plurality of stators 31 in series. Therefore, the length T 1 and length T 2 are, suffices respectively about 1 cm. The shorter the length T 1 and long T 2, it is possible to shorten the length of the shaft 21 and the frame portion 35, it is possible to reduce the cost. The electrical connection between the stators 31 is performed at the time of terminal line processing.
　第１蓋部４０は、蓋側メス部４０ｂに、一方のフレーム部３５のオス部３５ａが嵌め込まれた状態で、ネジ止めなどにより固定されている。第２蓋部５０は、他方のフレーム部３５のメス部３５ｂに蓋側オス部５０ａが嵌め込まれた状態で、ネジ止めなどにより固定されている。 The first lid portion 40 is fixed by screwing or the like in a state in which the male portion 35a of the one frame portion 35 is fitted into the lid-side female portion 40b. The second lid 50 is fixed by screwing or the like in a state in which the lid-side male portion 50 a is fitted into the female portion 35 b of the other frame 35.
　図１５は、図１３のＢ－Ｂ線に沿った概略断面図である。図１６は、図１５の位置決め溝及び突起部の周辺を部分的に抜き出した拡大図である。図１５及び図１６に示すように、ステータ組立体３０においては、フレーム部３５の突起部３５ｃが、ステータ３１の位置決め溝３１ｃに嵌められることにより、フレーム部３５とステータ３１との位置決めが行われる。すなわち、モータ１０は、ステータ組立体３０を組み合わせたとき、複数のステータ３１のそれぞれの位相がズレないよう、ステータ３１に位置決め溝３１ｃを設け、ステータ３１とフレーム部３５との位置決めを行えるようになっている。そのため、ステータ組立体３０の組立ばらつきと、複数のステータ３１同士の位相のズレとを抑制することができる。 FIG. 15 is a schematic cross-sectional view taken along the line BB of FIG. FIG. 16 is an enlarged view of a part of the periphery of the positioning groove and the projection of FIG. As shown in FIG. 15 and FIG. 16, in the stator assembly 30, the projection 35 c of the frame 35 is fitted in the positioning groove 31 c of the stator 31 to position the frame 35 and the stator 31. . That is, in the motor 10, the positioning groove 31c is provided in the stator 31 so that the phases of the plurality of stators 31 do not shift when the stator assembly 30 is combined, and the stator 31 and the frame portion 35 can be positioned. It has become. Therefore, the assembly variation of the stator assembly 30 and the phase shift of the plurality of stators 31 can be suppressed.
　また、シャフト２１とロータ２２との位置決めは、キー部２３を用いて行われる。すなわち、シャフト２１の軸側キー溝２１ｃと、ロータ２２のロータ側キー溝２２ｃとにより形成される空間にキー部２３を嵌め込むことで、回転方向Ｒ及び軸方向Ａｘの位置決めが行われる。なお、図１６では、位置決め溝３１ｃと突起部３５ｃとの間に間隙が生じている状態を例示しているが、これに限らず、突起部３５ｃのステータ３１側の面全体が、位置決め溝３１ｃに接触するようにしてもよい。 Further, the positioning of the shaft 21 and the rotor 22 is performed using the key portion 23. That is, by inserting the key portion 23 into the space formed by the shaft side key groove 21 c of the shaft 21 and the rotor side key groove 22 c of the rotor 22, positioning in the rotational direction R and the axial direction Ax is performed. Although FIG. 16 exemplifies a state in which a gap is generated between the positioning groove 31c and the projection 35c, the invention is not limited thereto. The entire surface of the projection 35c on the stator 31 side is the positioning groove 31c. You may contact it.
　ここで、上記の各図では、モータ１０が２つのコアモジュール８０を有する場合を例示したが、これに限らず、モータ１０は、３つ以上のコアモジュール８０を有してもよい。すなわち、本実施の形態１における構成を採れば、組み合わせるコアモジュール８０の数量を変更することにより、様々な出力を発揮するモータ１０を製作することができる。より具体的に、ロータコア２２０及びステータコア３１０の積厚をＡ［ｍｍ］とし、モータ１０が有するコアモジュール８０の数量をｎ（ｎは任意の自然数）とする。すると、モータ１０は、ロータコア及びステータコアの積厚、すなわち積層鋼板の積厚が「ｎＡ」の場合と同等の出力を発揮することができる。例えば、ロータコア２２０及びステータコア３１０の積厚を４０［ｍｍ］とした場合、モータ１０は、複数のコアモジュール８０を組み合わせることにより、４０［ｍｍ］、８０［ｍｍ］、１２０［ｍｍ］・・・といった積厚に応じた出力を発揮することができる。 Here, although the case where motor 10 has two core modules 80 was illustrated in each above-mentioned figure, not only this but motor 10 may have three or more core modules 80. That is, with the configuration in the first embodiment, the motor 10 that exhibits various outputs can be manufactured by changing the number of core modules 80 to be combined. More specifically, the laminated thickness of the rotor core 220 and the stator core 310 is A [mm], and the number of core modules 80 that the motor 10 has is n (n is an arbitrary natural number). Then, the motor 10 can exhibit the same output as that in the case where the laminated thickness of the rotor core and the stator core, that is, the laminated thickness of the laminated steel plates is “nA”. For example, when the laminated thickness of the rotor core 220 and the stator core 310 is 40 [mm], the motor 10 can be 40 [mm], 80 [mm], 120 [mm] ... by combining a plurality of core modules 80. The output corresponding to the thickness of the stack can be exhibited.
　図１７は、本発明の実施の形態１のモータの他の構成を例示する概略断面図である。図１７に示すように、モータ１０は、フレーム部３５は、軸方向Ａｘ側にメス部３５ｂが配置され、反軸方向側にオス部３５ａが配置されるようにしてもよい。このようにしても、ステータ３１の位置決め溝３１ｃに、フレーム部３５の突起部３５ｃを嵌めることができるため、ステータ３１とフレーム部３５との回転方向Ｒにおける位置決めを行うことができる。そして、隣接する２つのフレーム部３５において、一方のフレーム部３５のオス部３５ａを、他方のフレーム部３５のメス部３５ｂに嵌め込むことができる。 FIG. 17 is a schematic cross-sectional view illustrating another configuration of the motor according to the first embodiment of the present invention. As shown in FIG. 17, the frame portion 35 of the motor 10 may have the female portion 35b disposed on the side in the axial direction Ax and the male portion 35a disposed on the opposite side in the axial direction. Also in this configuration, the projection 35c of the frame 35 can be fitted into the positioning groove 31c of the stator 31, so that the stator 31 and the frame 35 can be positioned in the rotational direction R. Then, in the two adjacent frame portions 35, the male portion 35a of one frame portion 35 can be fitted into the female portion 35b of the other frame portion 35.
　また、フレーム部３５を図１７のように配置する場合、モータ１０は、第２蓋部５０を軸方向Ａｘ側に設け、第１蓋部４０を反軸方向側に設けるとよい。そして、シャフト２１が貫通する貫通穴５１を第２蓋部５０に設けるとよい。この場合、第１蓋部４０には、貫通穴４１を設けなくてもよい。第２蓋部５０は、一方のフレーム部３５のメス部３５ｂに蓋側オス部５０ａを嵌め込んだ状態で、ネジ止めなどにより固定するとよい。第１蓋部４０は、蓋側メス部４０ｂに、一方のフレーム部３５のオス部３５ａを嵌め込んだ状態で、ネジ止めなどにより固定するとよい。 When the frame portion 35 is arranged as shown in FIG. 17, the motor 10 may have the second cover 50 provided on the side in the axial direction Ax and the first cover 40 provided on the opposite side in the axial direction. Then, the through hole 51 through which the shaft 21 passes may be provided in the second lid 50. In this case, the through hole 41 may not be provided in the first lid 40. The second lid portion 50 may be fixed by screwing or the like in a state in which the lid-side male portion 50a is fitted in the female portion 35b of the one frame portion 35. The first lid 40 may be fixed by screwing or the like in a state in which the male portion 35a of one frame portion 35 is fitted into the lid-side female portion 40b.
　以上のように、本実施の形態１のモータ１０は、複数のコアモジュール８０のそれぞれのフレーム部３５がシャフト２１の軸方向Ａｘに沿って連結されるため、２以上のコアモジュール８０を組み合わせることにより、全体での出力を変化させることができる。よって、発揮する出力の種類を増やす場合でも、製造設備及び金型の新設等を抑制し、生産性の向上を図ることができる。すなわち、モータ１０は、ロータコア２２０とステータコア３１０とをモジュール化したコアモジュール８０を組み合わせることにより、様々な出力を発揮することができるため、設備投資などのコストを削減することができる。 As described above, in the motor 10 of the first embodiment, since the frame portions 35 of the plurality of core modules 80 are connected along the axial direction Ax of the shaft 21, combining two or more core modules 80 Can change the overall output. Therefore, even in the case of increasing the types of output to be exhibited, it is possible to suppress the new construction of the manufacturing equipment and the mold and to improve the productivity. That is, since the motor 10 can exhibit various outputs by combining the core module 80 in which the rotor core 220 and the stator core 310 are modularized, costs such as equipment investment can be reduced.
　ところで、積層鋼板の固定には、一般に、プレス実施時にカシメを用いて行う方法、又はリベットを用いて固定する方法などが用いられる。カシメによって固定できる電磁鋼板の枚数には限界があり、その限界は、電磁鋼板に設けられた突起の高さとの間に相関がある。すなわち、積層鋼板の積厚が一定値を超えると、積層強度を保つことが難しくなる。そのため、従来は、積層鋼板の積厚が一定値を超える場合、積層時の倒れを抑制するために、リベットなどを用いた追加加工を行っている。また、電磁鋼板には厚み偏差があるため、要求される出力の実現に必要な高さまで電磁鋼板を積み上げた場合、電磁鋼板の厚み偏差により、ロータコアの平行度及び真円度を保つことが難しくなる。したがって、積層鋼板の積厚の増大は、ギャップ不均一によるコギングトルクの発生にも繋がり得る。 By the way, for fixing of laminated steel plates, generally, a method of caulking is used at the time of pressing, a method of fixing using a rivet, or the like is used. There is a limit to the number of electromagnetic steel sheets that can be fixed by caulking, and the limit is correlated with the height of the projections provided on the magnetic steel sheets. That is, when the laminated thickness of the laminated steel sheet exceeds a certain value, it becomes difficult to maintain the laminated strength. Therefore, conventionally, when the laminated thickness of the laminated steel sheet exceeds a certain value, additional processing using a rivet or the like is performed in order to suppress a fall during lamination. In addition, since electromagnetic steel sheets have thickness deviations, it is difficult to maintain the parallelism and roundness of the rotor core due to the thickness deviations of the electromagnetic steel sheets when the electromagnetic steel sheets are stacked to the height necessary to realize the required output. Become. Therefore, the increase in the laminated thickness of the laminated steel sheet can also lead to the generation of cogging torque due to gap non-uniformity.
　この点、本実施の形態１のモータ１０は、積層鋼板からなるロータコア２２０及びステータコア３１０をモジュール化した複数のコアモジュール８０を直列に接続するようになっている。よって、１つのロータコア２２０及び１つのステータコア３１０を構成する電磁鋼板の枚数の増加を防ぐことができるため、積層鋼板の安定化を図ることができる。加えて、ロータコア２２０及びステータコア３１０をカシメ加工のみで製作できるケースが増えるため、リベットなどを用いた固定作業を低減することができる。 In this respect, the motor 10 according to the first embodiment is configured to connect in series a plurality of core modules 80 obtained by modularizing the rotor core 220 and the stator core 310 made of laminated steel plates. Thus, an increase in the number of electromagnetic steel sheets constituting one rotor core 220 and one stator core 310 can be prevented, so that the laminated steel sheets can be stabilized. In addition, since the number of cases where the rotor core 220 and the stator core 310 can be manufactured only by caulking increases, the fixing operation using a rivet or the like can be reduced.
　ここで、モータ１０は、図１４のように、フレーム部３５のオス部３５ａが軸方向Ａｘ側を向くように配置してもよい。そして、モータ１０では、第１蓋部４０が、最も軸方向Ａｘ側に配置されたコアモジュール８０のフレーム部３５に取り付けられ、第２蓋部５０が、最も反軸方向側に配置されたコアモジュール８０のフレーム部３５に取り付けられてもよい。また、モータ１０は、図１７のように、フレーム部３５のメス部３５ｂが軸方向Ａｘ側を向くように配置してもよい。そして、モータ１０では、第２蓋部５０が、最も軸方向Ａｘ側に配置されたコアモジュール８０のフレーム部３５に取り付けられ、第１蓋部４０が、最も反軸方向側に配置されたコアモジュール８０のフレーム部３５に取り付けられてもよい。このように、本実施の形態１のモータ１０は、同一の部品の配置を変えることにより、構造を変更することができる。 Here, as shown in FIG. 14, the motor 10 may be disposed such that the male portion 35 a of the frame portion 35 faces the axial direction Ax side. Then, in the motor 10, the first lid 40 is attached to the frame 35 of the core module 80 disposed closest to the axial direction Ax, and the second lid 50 is disposed core opposite to the axial direction. It may be attached to the frame portion 35 of the module 80. Further, as shown in FIG. 17, the motor 10 may be disposed so that the female portion 35b of the frame portion 35 faces the axial direction Ax side. Then, in the motor 10, the second lid 50 is attached to the frame 35 of the core module 80 disposed on the most axial direction Ax side, and the first lid 40 is disposed on the opposite axial direction side. It may be attached to the frame portion 35 of the module 80. Thus, the motor 10 of the first embodiment can be changed in structure by changing the arrangement of the same parts.
実施の形態２．
　図１８は、本発明の実施の形態２に係る空気調和装置が有するモータの概略断面図である。本実施の形態２の空気調和装置の全体的な構成は、前述した実施の形態１と同様であるため、各構成部材については同一の符号を用いて説明は省略する。 Second Embodiment
FIG. 18 is a schematic cross-sectional view of a motor of the air conditioning apparatus according to Embodiment 2 of the present invention. The overall configuration of the air conditioning apparatus of the second embodiment is the same as that of the first embodiment described above, so the same reference numerals will be used for the respective constituent members and the description will be omitted.
　実施の形態１のモータ１０は、積層鋼板の積厚が等しい複数のコアモジュール８０を組み合わせて構成されている。これに対し、本実施の形態２のモータ１１０は、積層鋼板の積厚が異なる少なくとも２種類のコアモジュールを有している。 The motor 10 of the first embodiment is configured by combining a plurality of core modules 80 having the same laminated thickness of laminated steel plates. On the other hand, the motor 110 of the second embodiment has at least two types of core modules having different laminated thicknesses of laminated steel plates.
　図１８の例において、モータ１１０は、出力が相対的に小さなコアモジュール８０Ａと、出力が相対的に大きなコアモジュール８０Ｂと、を有している。コアモジュール８０Ａは、ロータ２２Ａと、ステータ３１Ａと、を有している。コアモジュール８０Ａのフレーム部３５は、軸方向Ａｘの長さが、ステータ３１Ａの軸方向Ａｘの長さに応じて調整されている。コアモジュール８０Ｂは、ロータ２２Ｂと、ステータ３１Ｂと、を有している。コアモジュール８０Ｂのフレーム部３５は、軸方向Ａｘの長さが、ステータ３１Ｂの軸方向Ａｘの長さに応じて調整されている。したがって、積層鋼板の積厚が異なるコアモジュール８０Ａ及びコアモジュール８０Ｂのそれぞれの数量を変更することにより、異なる複数の出力を発揮するモータ１１０を構成することができる。 In the example of FIG. 18, the motor 110 has a core module 80A with a relatively small output and a core module 80B with a relatively large output. The core module 80A has a rotor 22A and a stator 31A. The length of the axial direction Ax of the frame portion 35 of the core module 80A is adjusted in accordance with the length of the axial direction Ax of the stator 31A. The core module 80B has a rotor 22B and a stator 31B. The length of the axial direction Ax of the frame portion 35 of the core module 80B is adjusted in accordance with the length of the axial direction Ax of the stator 31B. Therefore, by changing the respective numbers of core modules 80A and core modules 80B having different laminated thicknesses of the laminated steel plates, it is possible to configure the motor 110 that exerts a plurality of different outputs.
　ここで、ロータコア２２０Ａ及びステータコア３１０Ａの積厚をＡ［ｍｍ］とし、ロータコア２２０Ｂ及びステータコア３１０Ｂの積厚をＢ［ｍｍ］とする。また、モータ１１０が有するコアモジュール８０Ａの数量をｎ（ｎは０又は任意の自然数）とし、モータ１１０が有するコアモジュール８０Ｂの数量をｍ（ｍは０又は任意の自然数）とする。すると、モータ１１０は、ロータコア及びステータコアの積厚、すなわち積層鋼板の積厚が「ｎＡ＋ｍＢ」である場合と同等の出力を発揮することができる。 Here, the laminated thickness of the rotor core 220A and the stator core 310A is A [mm], and the laminated thickness of the rotor core 220B and the stator core 310B is B [mm]. The number of core modules 80A included in the motor 110 is n (n is 0 or any natural number), and the number of core modules 80B included in the motor 110 is m (m is 0 or any natural number). Then, the motor 110 can exhibit the same output as in the case where the laminated thickness of the rotor core and the stator core, that is, the laminated thickness of the laminated steel plates is “nA + mB”.
　例えば、４０［ｍｍ］、６０［ｍｍ］、８０［ｍｍ］、１００［ｍｍ］、１２０［ｍｍ］の５種類の積層鋼板の積厚を有するモータ１１０を製作したい状況を想定する。この場合、例えば、Ａ＝４０［ｍｍ］のロータコア２２０Ａ及びステータコア３１０Ａと、Ｂ＝６０［ｍｍ］のロータコア２２０Ｂ及びステータコア３１０Ｂとを製作しておけばよい。 For example, it is assumed that it is desired to manufacture a motor 110 having a stack thickness of five types of laminated steel plates of 40 [mm], 60 [mm], 80 [mm], 100 [mm], and 120 [mm]. In this case, for example, a rotor core 220A and a stator core 310A of A = 40 [mm] and a rotor core 220B and a stator core 310B of B = 60 [mm] may be manufactured.
　図１９は、本発明の実施の形態２につき、２種類のコアモジュールで実現できるモータの構成を例示した表である。図１８及び図１９を参照して、Ａ＝４０［ｍｍ］とし、Ｂ＝６０［ｍｍ］とした場合に実現可能なモータ１１０の構成について具体的に説明する。 FIG. 19 is a table exemplifying the configuration of a motor that can be realized by two types of core modules according to the second embodiment of the present invention. The configuration of the motor 110 that can be realized when A = 40 [mm] and B = 60 [mm] will be specifically described with reference to FIGS. 18 and 19.
　図１９に示すように、１つのコアモジュール８０Ａを用いれば、積層鋼板の積厚が４０［ｍｍ］のモータ１１０を製作することができる。１つのコアモジュール８０Ｂを用いれば、積層鋼板の積厚が６０［ｍｍ］のモータ１１０を製作することができる。２つのコアモジュール８０Ａを用いれば、積層鋼板の積厚が８０［ｍｍ］のモータ１１０を製作することができる。１つのコアモジュール８０Ａと１つのコアモジュール８０Ｂとを用いれば、積層鋼板の積厚が１００［ｍｍ］のモータ１１０を製作することができる。 As shown in FIG. 19, if one core module 80A is used, a motor 110 having a laminated thickness of 40 [mm] can be manufactured. If one core module 80B is used, the motor 110 having a laminated thickness of 60 mm can be manufactured. If two core modules 80A are used, a motor 110 having a laminated thickness of 80 mm can be manufactured. By using one core module 80A and one core module 80B, it is possible to manufacture a motor 110 having a laminated thickness of 100 [mm].
　３つのコアモジュール８０Ａを用いれば、積層鋼板の積厚が１２０［ｍｍ］のモータ１１０を製作することができる。積層鋼板の積厚が１２０［ｍｍ］のモータ１１０は、２つのコアモジュール８０Ｂを用いて製作することもできる。２つのコアモジュール８０Ａと１つのコアモジュール８０Ｂとを用いれば、積層鋼板の積厚が１４０［ｍｍ］のモータ１１０を製作することができる。 If three core modules 80A are used, it is possible to manufacture a motor 110 having a laminated thickness of 120 [mm]. The motor 110 having a laminated steel plate thickness of 120 mm can also be manufactured using two core modules 80B. By using two core modules 80A and one core module 80B, it is possible to manufacture the motor 110 having a laminated thickness of 140 [mm].
　４つのコアモジュール８０Ａを用いれば、積層鋼板の積厚が１６０［ｍｍ］のモータ１１０を製作することができる。積層鋼板の積厚が１６０［ｍｍ］のモータ１１０は、１つのコアモジュール８０Ａと２つのコアモジュール８０Ｂを用いて製作することもできる。３つのコアモジュール８０Ａと１つのコアモジュール８０Ｂを用いれば、積層鋼板の積厚が１８０［ｍｍ］のモータ１１０を製作することができる。積層鋼板の積厚が１８０［ｍｍ］のモータ１１０は、３つのコアモジュール８０Ｂを用いて製作することもできる。 If four core modules 80A are used, it is possible to manufacture a motor 110 having a laminated thickness of 160 [mm]. The motor 110 having a laminated thickness of 160 [mm] can also be manufactured using one core module 80A and two core modules 80B. By using three core modules 80A and one core module 80B, a motor 110 having a laminated thickness of 180 [mm] can be manufactured. The motor 110 having a laminated thickness of 180 [mm] can also be manufactured using three core modules 80B.
　上記のとおり、図１９に示す例の場合は、積層鋼板の積厚が２０［ｍｍ］違いである複数のモータ１１０を製作することができる。そして、Ａ［ｍｍ］とＢ［ｍｍ］とは任意に変更することができるため、Ａ［ｍｍ］及びｎと、Ｂ［ｍｍ］及びｍとの組み合わせを変更することにより、様々な出力を発揮するモータ１１０を製作することができる。 As described above, in the case of the example shown in FIG. 19, it is possible to manufacture a plurality of motors 110 in which the laminated thickness of laminated steel plates is different by 20 [mm]. And, since A [mm] and B [mm] can be arbitrarily changed, various outputs are exhibited by changing the combination of A [mm] and n with B [mm] and m. The motor 110 can be manufactured.
　以上のように、本実施の形態２のモータ１１０によっても、実施の形態１のモータ１０と同様に、発揮する出力の種類を増やす場合でも、製造設備及び金型の新設等を抑制し、生産性の向上を図ることができる。また、本実施の形態２のモータ１１０は、負荷の駆動に求められる出力に応じて、２種類のロータコア及びステータコアを組み合わせることにより、様々な出力を発揮することができる。すなわち、従来のモータの構造では、要求される出力が変化した場合、モータを新たに製作する必要が生じるため、製造設備及び金型の新設などを要する。これに対し、モータ１１０は、ロータコア及びステータコアを含んでモジュール化された２種類のコアモジュールを組み合わせて製作される。よって、２種類のコアモジュールを製作するための製造設備及び金型があればよいため、従来よりも、金型の数量を減らすことができ、設備投資の費用を削減することができる。つまり、モータ１１０の構造を採れば、投資額を大きく削減することができる。 As described above, even with the motor 110 according to the second embodiment, as in the motor 10 according to the first embodiment, even when the types of output to be exhibited are increased, the production facility and the new mold of the mold are suppressed, It is possible to improve the quality. In addition, the motor 110 according to the second embodiment can exhibit various outputs by combining two types of rotor cores and stator cores according to the output required for driving the load. That is, in the conventional motor structure, when the required output changes, it is necessary to newly manufacture the motor, so it is necessary to newly install a manufacturing facility and a mold. On the other hand, the motor 110 is manufactured by combining two types of core modules modularized including a rotor core and a stator core. Therefore, since it is only necessary to have manufacturing equipment and a mold for manufacturing two types of core modules, the number of molds can be reduced compared to the conventional case, and the cost of equipment investment can be reduced. That is, if the structure of the motor 110 is adopted, the amount of investment can be greatly reduced.
　ところで、図１８及び図１９では、モータ１１０が２つのコアモジュールを組み合わせて構成される例を示したが、これに限らず、モータ１１０は、３つ以上のコアモジュールを組み合わせて構成してもよい。この場合、モータ１１０が有する複数のコアモジュールは、積層鋼板の積厚が全て異なっていてもよいし、積層鋼板の積厚が同じものが含まれていてもよい。このようにすれば、金型の数量は多少増えることになるが、さらに細かくモータ１１０の出力を変更することができる。また、モータ１１０は、図１７の例と同様、フレーム部３５、第１蓋部４０、及び第２蓋部５０の配置を反転させる構成を採ることができる。 Although FIGS. 18 and 19 show an example in which the motor 110 is configured by combining two core modules, the invention is not limited thereto, and the motor 110 may be configured by combining three or more core modules. Good. In this case, in the plurality of core modules of the motor 110, all of the laminated thicknesses of the laminated steel plates may be different, or those having the same laminated thickness of the laminated steel plates may be included. In this way, although the number of molds is slightly increased, the output of the motor 110 can be changed more finely. Further, as in the example of FIG. 17, the motor 110 can adopt a configuration in which the arrangement of the frame portion 35, the first lid portion 40, and the second lid portion 50 is reversed.
　上記実施の形態は、モータ及び空気調和装置における好適な具体例であり、本発明の技術的範囲は、これらの態様に限定されるものではない。例えば、上記の各実施の形態では、モータ１０及び１１０として、ロータコアに永久磁石が埋め込まれたロータを有する永久磁石埋め込み型モータ、すなわちＩＰＭモータを例示したが、これに限定されない。例えば、モータ１０及び１１０は、ロータコアの外周面に永久磁石が貼着されたロータを有する表面磁石型モータ、すなわちＳＰＭ（Ｓｕｒｆａｃｅ　Ｐｅｒｍａｎｅｎｔ　Ｍａｇｎｅｔ）モータであってもよい。ただし、ＩＰＭモータは、コイルと永久磁石との吸引力及び反発力に起因するマグネットトルクに加えてリラクタンストルクを得ることができる。そのため、モータ１０及び１１０は、ＩＰＭモータの構造を採った方が、ＳＰＭモータの構成を採るよりも、高トルクかつ高効率となる。 The above-mentioned embodiment is a suitable example in a motor and an air harmony device, and the technical scope of the present invention is not limited to these modes. For example, although the permanent magnet embedded motor having a rotor in which permanent magnets are embedded in the rotor core, that is, an IPM motor is exemplified as the motors 10 and 110 in the above embodiments, the invention is not limited thereto. For example, the motors 10 and 110 may be surface magnet type motors having a rotor having permanent magnets attached to the outer peripheral surface of the rotor core, that is, SPM (Surface Permanent Magnet) motors. However, the IPM motor can obtain reluctance torque in addition to the magnet torque resulting from the attraction and repulsion between the coil and the permanent magnet. Therefore, if the motors 10 and 110 adopt the structure of the IPM motor, they have higher torque and higher efficiency than the structure of the SPM motor.
　また、上記の各実施の形態では、一方向だけに負荷が接続されるモータ１０を例示したが、これに限らず、モータ１０は、両方向に負荷が接続されるものであってよい。なお、この場合の軸方向Ａｘは、シャフト２１における何れか一方の負荷側の方向となる。例えば、図１４及び図１８に例示する構造であれば、第２蓋部５０の中心部に、シャフト２１を貫通させる貫通穴５１を設ける。これにより、シャフト２１は、第２ベアリング２５よりも反軸方向側に延び、軸方向Ａｘ側と同様、第２蓋部５０の貫通穴５１を通過して外部へ突出する。また、図１７に例示する構造であれば、第１蓋部４０の中心部に、シャフト２１を貫通させる貫通穴４１を設ける。これにより、シャフト２１は、第２ベアリング２５よりも反軸方向側に延び、軸方向Ａｘ側と同様、第１蓋部４０の貫通穴４１を通過して外部へ突出する。さらに、上記の各実施の形態では、１つのコアモジュールが、１つのステータ３１と１つのロータ２２とを含む例を示したが、これに限らず、１つのコアモジュールは、１つのステータ３１と複数のロータ２２とを含んでいてもよい。 Further, although the motor 10 in which the load is connected in only one direction is illustrated in each of the above-described embodiments, the present invention is not limited to this. The motor 10 may be connected in both directions. The axial direction Ax in this case is the direction of one of the loads on the shaft 21. For example, in the structure illustrated in FIG. 14 and FIG. 18, the through hole 51 for allowing the shaft 21 to penetrate is provided at the center of the second lid 50. Thereby, the shaft 21 extends in the opposite axial direction side with respect to the second bearing 25 and, similarly to the axial direction Ax side, passes through the through hole 51 of the second lid 50 and protrudes to the outside. Further, in the case of the structure illustrated in FIG. 17, the through hole 41 for allowing the shaft 21 to penetrate is provided at the center of the first lid 40. Thereby, the shaft 21 extends in the opposite axial direction side with respect to the second bearing 25 and, similarly to the axial direction Ax side, passes through the through hole 41 of the first lid 40 and protrudes to the outside. Furthermore, in each of the above-described embodiments, an example is shown in which one core module includes one stator 31 and one rotor 22. However, the present invention is not limited to this. One core module includes one stator 31 and one stator 31. A plurality of rotors 22 may be included.
　加えて、上記の各実施の形態では、キー部２３がロータ２２と同数であり、シャフト２１がロータ２２と同数の軸側キー溝２１ｃを有する場合を例示したが、これに限らず、キー部２３及び軸側キー溝２１ｃの数は、ロータ２２の数よりも少なくてよい。例えば、キー部２３は１つであってもよく、軸側キー溝２１ｃは１箇所に設けられもよい。この場合、キー部２３及び軸側キー溝２１ｃの軸方向Ａｘの長さは、複数のロータ２２の軸方向Ａｘの長さに応じて決めるとよい。このようにしても、シャフト２１と複数のロータ２２との回転方向Ｒにおける位置を決めることができる。また、シャフト２１には、予め決められた設定数の軸側キー溝２１ｃが設けられていてもよい。このようにすれば、要求される出力に応じて、設定数以下の任意の数のロータ２２をシャフト２１に固定することができる。 In addition, although the case where the key part 23 is the same number as the rotor 22 and the shaft 21 has the shaft side key groove 21c of the same number as the rotor 22 was illustrated in each said embodiment, it does not restrict to this. The number of 23 and the shaft side key groove 21 c may be smaller than the number of rotors 22. For example, one key portion 23 may be provided, and the shaft side key groove 21 c may be provided at one position. In this case, the length in the axial direction Ax of the key portion 23 and the shaft side key groove 21 c may be determined according to the length in the axial direction Ax of the plurality of rotors 22. Also in this case, the positions of the shaft 21 and the plurality of rotors 22 in the rotational direction R can be determined. Further, the shaft 21 may be provided with a predetermined number of shaft-side key grooves 21c. In this way, an arbitrary number of rotors 22 equal to or less than the set number can be fixed to the shaft 21 according to the required output.
　上記の各実施の形態では、ファン１５０として、両吸込形のシロッコファンを例示したが、これに限定されない。すなわち、ファン１５０は、片吸込形のシロッコファンであってもよいし、プロペラファンであってもよい。さらに、図１１では、１８スロットのステータ３１を例示したが、これに限らず、ステータ３１のスロット数は、１８より少なくてもよく、１８より多くてもよい。 In each of the above-described embodiments, the dual suction type sirocco fan is illustrated as the fan 150, but the present invention is not limited to this. That is, the fan 150 may be a single suction type sirocco fan or a propeller fan. Furthermore, although FIG. 11 illustrates the stator 31 of 18 slots, the number of slots of the stator 31 is not limited thereto, and may be less than 18 or more than 18.
　１０、１１０　モータ、２０　ロータ組立体、２１　シャフト、２１ｃ　軸側キー溝、２２、２２Ａ、２２Ｂ　ロータ、２２ａ　挿入孔、２２ｃ　ロータ側キー溝、２２ｄ　磁石挿入穴、２２ｅ　永久磁石、２３　キー部、２４　第１ベアリング、２５　第２ベアリング、３０　ステータ組立体、３１、３１Ａ、３１Ｂ　ステータ、３１ｃ　位置決め溝、３５　フレーム部、３５ａ　オス部、３５ｂ　メス部、３５ｃ　突起部、３５ｄ　溝部、４０　第１蓋部、４０ｂ　蓋側メス部、４０ｄ　蓋側突起、４１　貫通穴、４４、５５　ベアリングハウジング、５０　第２蓋部、５０ａ　蓋側オス部、５０ｃ　蓋側溝部、５１　貫通穴、８０、８０Ａ、８０Ｂ　コアモジュール、１００　空気調和装置、１０１　筐体、１０２　吹出口、１０２ａ　吹出フランジ、１０３　前面吸込口、１５０　ファン、２２０、２２０Ａ、２２０Ｂ　ロータコア、２２０ａ　カシメ部、３１０、３１０Ａ、３１０Ｂ　ステータコア、３１１　外側壁、３２０　巻線、３５１　内側壁。 10, 110 motor, 20 rotor assembly, 21 shaft, 21c shaft side key groove, 22, 22A, 22B rotor, 22a insertion hole, 22c rotor side key groove, 22d magnet insertion hole, 22e permanent magnet, 23 key portion, 24 First bearing, 25 second bearing, 30 stator assembly, 31, 31A, 31B stator, 31c positioning groove, 35 frame portion, 35a male portion, 35b female portion, 35c protrusion portion, 35d groove portion, 40 first lid portion, 40b Lid-side female part, 40d Lid-side projection, 41 through hole, 44, 55 bearing housing, 50 second lid part, 50a Lid side male part, 50c Lid side groove part, 51 through hole, 80, 80A, 80B core module, 100 air conditioner, 101 case, 102 outlet, 102 Outlet flange 103 front inlet, 150 fan, 220,220A, 220B rotor core, 220a caulking portion, 310, 310a, 310B stator core, 311 outer walls, 320 windings, 351 inner wall.

Claims (10)

  1. 　シャフトと、
    　前記シャフトが挿入されるロータ、前記ロータの外周側に設けられるステータ、及び前記ステータの外周を囲うフレーム部を備えた複数のコアモジュールと、を有し、
    　複数の前記コアモジュールのそれぞれのフレーム部は、前記シャフトの軸方向に沿って連結されている、モータ。     With the shaft,
    It has a rotor into which the shaft is inserted, a stator provided on the outer peripheral side of the rotor, and a plurality of core modules provided with a frame portion surrounding the outer periphery of the stator,
    The frame part of each of the plurality of core modules is connected along the axial direction of the shaft.
  2. 　前記フレーム部は、
    　前記軸方向における一方の端部にオス部を有すると共に、他方の端部にメス部を有し、
    　隣接する２つの前記フレーム部は、一方の前記フレーム部のオス部が、他方の前記フレーム部のメス部に嵌め込まれている、請求項１に記載のモータ。     The frame unit is
    While having a male portion at one end in the axial direction and a female portion at the other end,
    2. The motor according to claim 1, wherein two adjacent ones of the frame parts have male parts of one of the frame parts fitted in female parts of the other frame part.
  3. 　連結された複数の前記コアモジュールの一方の端部に配置された前記フレーム部に取り付けられる第１蓋部と、
    　連結された複数の前記コアモジュールの他方の端部に配置された前記フレーム部に取り付けられる第２蓋部と、を有し、
    　前記第１蓋部は、
    　前記フレーム部の前記オス部が嵌め込まれる蓋側メス部を有し、
    　前記第２蓋部は、
    　前記フレーム部の前記メス部に嵌め込まれる蓋側オス部を有する、請求項２に記載のモータ。     A first lid attached to the frame disposed at one end of the plurality of coupled core modules;
    And a second lid attached to the frame disposed at the other end of the plurality of coupled core modules.
    The first lid is
    It has a lid-side female part into which the male part of the frame part is fitted,
    The second lid is
    The motor according to claim 2, further comprising a lid side male portion fitted to the female portion of the frame portion.
  4. 　前記フレーム部は、
    　前記ステータに対向する内側壁に突起部を有し、
    　前記ステータは、
    　前記フレーム部の前記突起部が嵌まる位置決め溝を有する、請求項２又は３に記載のモータ。     The frame unit is
    It has a projection on the inner wall facing the stator,
    The stator is
    The motor according to claim 2 or 3, further comprising a positioning groove in which the projection of the frame portion is fitted.
  5. 　前記フレーム部は、
    　前記メス部の外周側に溝部を有し、
    　前記突起部は、
    　前記溝部に嵌められている、請求項４に記載のモータ。     The frame unit is
    It has a groove on the outer peripheral side of the female part,
    The protrusion is
    The motor according to claim 4, which is fitted in the groove.
  6. 　複数の前記コアモジュールのそれぞれの前記ロータは、前記シャフトに一定の間隔を隔てて固定されている、請求項１～５の何れか一項に記載のモータ。 The motor according to any one of claims 1 to 5, wherein the rotor of each of the plurality of core modules is fixed to the shaft at a predetermined interval.
  7. 　前記ロータは、
    　棒状のキー部が嵌められるロータ側キー溝を有し、
    　前記シャフトは、
    　前記キー部が嵌められる軸側キー溝を有し、
    　前記シャフトと複数の前記シャフトとは、前記キー部によって固定される、請求項１～６の何れか一項に記載のモータ。     The rotor is
    It has a rotor side key groove in which a rod-like key portion is fitted,
    The shaft is
    It has a shaft side key groove in which the key part is fitted,
    The motor according to any one of claims 1 to 6, wherein the shaft and the plurality of shafts are fixed by the key portion.
  8. 　前記キー部は、前記ロータと同数であり、
    　前記シャフトは、前記ロータと同数の前記軸側キー溝を有し、
    　前記各キー部は、それぞれ、前記各ロータのそれぞれの前記ロータ側キー溝と、前記各軸側キー溝とに嵌められている、請求項７に記載のモータ。     The number of key parts is the same as that of the rotor,
    The shaft has the same number of shaft side key grooves as the rotor, and
    The motor according to claim 7, wherein each of the key portions is fitted in the respective rotor side key groove of each of the rotors and each of the shaft side key grooves.
  9. 　前記ステータは、積層鋼板からなるステータコアを有し、
    　前記ロータは、積層鋼板からなるロータコアを有し、
    　複数の前記コアモジュールは、
    　前記ステータコア及び前記ロータコアの積厚が異なる少なくとも２種類の前記コアモジュールを含む、請求項１～８の何れか一項に記載のモータ。     The stator has a stator core made of laminated steel plates,
    The rotor has a rotor core made of laminated steel plates,
    The plurality of core modules are
    The motor according to any one of claims 1 to 8, comprising at least two types of core modules having different stack thicknesses of the stator core and the rotor core.
  10. 　請求項１～９の何れか一項に記載のモータと、
    　前記モータを動力源として回転するファンと、を有する空気調和装置。     A motor according to any one of claims 1 to 9;
    An air conditioner comprising: a fan that rotates using the motor as a power source.
PCT/JP2017/030821 2017-08-29 2017-08-29 Motor and air conditioning device WO2019043766A1 (en)

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