Motor, and compressor

The integration of a partition wall in the insulator between the coil and terminal housing addresses the issue of motor size enlargement by maintaining insulation without axial protrusion, resulting in a more compact motor design.

JP2025142867APending Publication Date: 2025-10-01FUJITSU GENERAL LTD
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Patent Information

Application Number
JP2024042461
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2025-10-01

AI Technical Summary

Technical Problem

Conventional motors with integrated terminal housings protrude significantly in the axial direction to ensure insulation distance, leading to an increased size of the insulator and motor in the axial direction.

Method used

The motor design integrates a partition wall in the insulator between the coil and the terminal housing, ensuring insulation without requiring the housing to protrude, thereby preventing the insulator from enlarging in both axial and radial directions.

Benefits of technology

This design maintains insulation distances while reducing the motor's size in both axial and radial directions, allowing for a more compact motor structure.

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Abstract

To provide a motor capable of suppressing enlargement of an insulator in an axial direction or a radial direction in the motor where a housing for terminals is integrally formed in the insulator, and a compressor.SOLUTION: A motor comprises: a stator core including a plurality of teeth; an insulator including a plurality of drums; a plurality of coils formed by winding lead wires around the teeth via the drums; and a terminal electrically connected to the lead wires extending from the coils. Regarding the motor, in the insulator, a storage part for storing the terminal is integrally formed. In the insulator, a partition wall is formed which is positioned between the coil and the storage part in a view in an axial direction of a rotary shaft of the motor.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a motor having an insulator integrated with a terminal housing. [Background technology]

[0002] Conventionally, there has been known a motor that includes a stator core having an annular yoke and a plurality of teeth extending from the inner periphery of the yoke, and an insulator attached to the axial end of the stator core. Some of these motors have a terminal housing formed integrally with the insulator, and conductors drawn into the housing are connected to terminals inserted into the housing (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-63564 [Patent Document 2] International Publication No. 2021 / 019751 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned prior art document, in order to ensure an insulation distance between the coil arranged on the inner periphery of the insulator and the conductor drawn into the housing, the housing had to protrude significantly in the axial direction of the insulator, which resulted in a problem of the entire motor including the insulator becoming larger in size in the axial direction.

[0005] In view of the above circumstances, an object of the present invention is to provide a motor and a compressor in which a terminal housing is integrally formed with an insulator, and which can prevent the insulator from becoming larger in the axial or radial directions. [Means for solving the problem]

[0006] A motor according to one aspect of the present invention includes a stator core having a plurality of teeth, an insulator having a plurality of winding drums, a plurality of coils formed by winding conductors around the teeth via the winding drums, and terminals electrically connected to the conductors extending from the coils, wherein the insulator is integrally formed with a housing portion for housing the terminals, The insulator has a partition wall formed therein that is located between the coil and the housing portion when viewed in the axial direction of the rotating shaft of the motor.

[0007] The motor has an insulator in which a partition wall is formed between the coil and the accommodating portion when viewed in the axial direction of the rotating shaft of the motor, which prevents the insulator from becoming large in the axial or radial direction in a motor in which a terminal housing is integrally formed with the insulator.

[0008] The conducting wire extending from the coil may have a connecting wire that is pulled out to the outer periphery of the insulator and connected to the terminal, and at least a portion of the partition wall may be located between the connecting wire and the coil when viewed from the axial direction.

[0009] The connecting wire may be drawn into the housing from an inner peripheral side of the motor as viewed from the housing.

[0010] The accommodating portion has an inner diameter sidewall facing radially inward of the motor and an outer diameter sidewall facing radially outward of the motor, and a connection line passage portion through which the connection line passes is formed in each of the inner diameter sidewall and the outer diameter sidewall, and the connection line may be cut at a position radially outward of the outer diameter sidewall.

[0011] The partition wall may be formed such that at least a portion of the terminal overlaps the partition wall in the radial direction when viewed from the axial direction.

[0012] The partition wall may be formed to overlap at least a portion of the terminal in a height direction.

[0013] The insulator may have a connection line arrangement space between the accommodating portion and the partition wall, through which the connection line passes.

[0014] The insulator may have a lead-out portion formed therein for passing the connection wire extending from the coil from the inner side to the outer side of the insulator, and the lead-out portion may be positioned so as not to overlap the accommodating portion in the circumferential direction.

[0015] The portion of the conductor passing through the lead-out portion and the portion of the conductor extending radially outward from the housing portion may be located at substantially the same height in the height direction.

[0016] The motor may be a three-phase motor, the accommodating portion may receive conductor wires of each of the three phases, and the terminal may electrically connect the conductor wires of the three phases to each other to form a neutral point.

[0017] A compressor according to one aspect of the present invention includes a motor, a compressor main body container, and a compression mechanism. The compressor main body container accommodates the motor therein. The compression mechanism is housed inside the compressor main body container and is driven by the motor. [Effects of the Invention]

[0018] According to the present invention, in a motor in which a terminal housing is integrally formed with an insulator, it is possible to prevent the insulator from becoming large in size in the axial direction or radial direction. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a vertical cross-sectional view showing a compressor provided with a motor according to the present invention. [Figure 2] FIG. 2 is a top view showing a stator core. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 2 is a top view showing the coil, a portion of the insulator, and the housing portion. [Figure 6] FIG. 4 is a perspective view showing the housing portion and a part of the insulator. [Figure 7] 4 is a cross-sectional view of the insulator and the housing portion cut along a radial direction. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0021] [Compressor configuration] FIG. 1 is a vertical cross-sectional view showing a compressor 1 provided with a motor 5 according to the present invention.

[0022] As shown in FIG. 1, the compressor 1 includes a housing 2, a shaft 3, a motor 5, and a compression unit 6.

[0023] A sealed, substantially cylindrical internal space 7 is formed inside the housing 2. The housing 2 is formed so that when placed upright on a horizontal surface, the central axis of the cylinder of the internal space 7 is parallel to the vertical direction of the horizontal surface.

[0024] The housing 2 has a U-phase power terminal 8U, a V-phase power terminal 8V, and a W-phase power terminal 8W. The U-phase power terminal 8U, the V-phase power terminal 8V, and the W-phase power terminal 8W are formed of conductors. The U-phase power terminal 8U penetrates the top of the housing 2 so that one end is located in the internal space 7 and the other end is located in the internal space 7. Similarly, the V-phase power terminal 8V penetrates the top of the housing 2 so that one end is located in the internal space 7 and the other end is located in the internal space 7. The W-phase power terminal 8W penetrates the top of the housing 2 so that one end is located in the internal space 7 and the other end is located in the internal space 7. The U-phase power terminal 8U, the V-phase power terminal 8V, and the W-phase power terminal 8W are attached to the housing 2 so that they are not electrically connected to each other and to the housing 2.

[0025] Furthermore, the housing 2 has a suction pipe 11 and a discharge pipe 12. A flow path 14 is formed inside the suction pipe 11. The suction pipe 11 is connected to the housing 2 so that the flow path 14 is connected to the lower part of the internal space 7. A flow path 15 is formed inside the discharge pipe 12. The discharge pipe 12 is connected to the housing 2 so that the flow path 15 is connected to the upper part of the internal space 7.

[0026] The shaft 3 is formed in a rod shape and is arranged in the internal space 7 along a rotation axis 16, which is the central axis of the cylinder formed by the internal space 7. The shaft 3 is supported by the housing 2 so as to be rotatable around the rotation axis 16.

[0027] Motor 5 has rotor 21 formed in a substantially cylindrical shape and stator 22 formed in a substantially cylindrical shape. Rotor 21 is fixed to shaft 3 and supported by housing 2 so as to be rotatable about rotation axis 16. Rotor 21 also has a plurality of permanent magnets (not shown) embedded and fixed inside rotor 21.

[0028] Compression unit 6 is, for example, a rotary compression mechanism, and compresses the refrigerant supplied via suction pipe 11 as shaft 3 rotates. Compression unit 6 also supplies the compressed refrigerant to the space between motor 5 and compression unit 6 in internal space 7.

[0029] The stator 22 is disposed so as to surround the outer periphery of the rotor 21 and is fixed to the housing 2. The stator 22 also has a stator core 23, an upper insulator 24, a lower insulator 25, and a plurality of windings 26. The upper insulator 24 is fixed to the upper part of the stator core 23. The lower insulator 25 is fixed to the lower part of the stator core 23. The upper insulator 24 and the lower insulator 25 are formed from an insulating resin and insulate the stator core 23 from the windings 26 (conductors).

[0030] 2 is a top view showing the stator core 23. The stator core 23 is formed into a cylindrical shape by laminating a plurality of plates made of a soft magnetic material such as electromagnetic steel plates.

[0031] 2, stator core 23 has a yoke portion 31 and a plurality of teeth 32-1, 32-2, 32-3, 32-4, 32-5, 32-6, 32-7, 32-8, and 32-9. Yoke portion 31 is formed in a substantially cylindrical shape and is disposed so that the central axis of yoke portion 31 overlaps with rotational axis 16 of rotor 21. One ends of the plurality of teeth 32-1 to 32-9 are formed so as to protrude from inner circumferential surface 33 of yoke portion 31 toward rotational axis 16 (toward the inside in the radial direction). In this embodiment, nine of the plurality of teeth 32-1 to 32-9 are formed on inner circumferential surface 33 of yoke portion 31 and arranged at equal intervals in the circumferential direction.

[0032] The radial direction is the direction of the diameter of a circle that is centered on the rotation axis 16 and is perpendicular to the rotation axis 16. The circumferential direction is the direction of the circumference of an imaginary circle that is centered on the rotation axis 16.

[0033] Fig. 3 is a top view showing the upper insulator 24. Fig. 4 is a perspective view showing the upper insulator 24.

[0034] As shown in Figures 3 and 4, the upper insulator 24 has an outer peripheral wall portion 41, a plurality of winding drum portions 42-1, 42-2, 42-3, 42-4, 42-5, 42-6, 42-7, 42-8, and 42-9, and a plurality of flange portions 43-1, 43-2, 43-3, 43-4, 43-5, 43-6, 43-7, 43-8, and 43-9. The outer peripheral wall portion 41 is formed in a substantially cylindrical shape. The outer peripheral wall portion 41 has an inner peripheral surface 44 formed on the radially inner side (the side toward the rotating shaft 16) of the outer peripheral wall portion 41, and an outer peripheral surface 45 formed on the radially outer side (the side opposite the rotating shaft 16) of the outer peripheral wall portion 41. The outer peripheral wall portion 41 has a housing portion 46, which will be described later, on the outer peripheral surface 45 side.

[0035] The plurality of winding drum portions 42-1 to 42-9 are formed integrally with the outer peripheral wall portion 41 so as to protrude from the inner peripheral surface 44 of the outer peripheral wall portion 41 toward the rotary shaft 16, and are arranged on the inner peripheral surface 44 so as to be spaced at equal intervals in the circumferential direction. The plurality of flange portions 43-1 to 43-9 correspond to the plurality of winding drum portions 42-1 to 42-9, and are each formed in the shape of a substantially semicircular plate. The plurality of flange portions 43-1 to 43-9 are also formed continuously with the inner diameter side end portions of the plurality of winding portions 42-1 to 42-9 (the other end different from the one end connected to the inner peripheral surface 44 of the outer peripheral wall portion 41).

[0036] The plurality of winding drum portions 42-1 to 42-9 correspond to the plurality of teeth portions 32-1 to 32-9 of the stator core 23. The winding wire 26 (conductor) is wound around each of the teeth portions 32 via the winding drum portion 42 to form a coil 50 (see FIG. 5). In this embodiment, the motor 5 is a three-phase motor. The plurality of winding wires 26 include windings corresponding to the U-phase, V-phase, and W-phase, respectively.

[0037] For example, the first U-phase winding is wound around tooth portion 32-1. The first V-phase winding is wound around tooth portion 32-2. The first W-phase winding is wound around tooth portion 32-3. Similarly, the second U-phase winding is wound around tooth portion 32-4. The second V-phase winding is wound around tooth portion 32-5. The second W-phase winding is wound around tooth portion 32-6. The third U-phase winding is wound around tooth portion 32-7. The third V-phase winding is wound around tooth portion 32-8. The third W-phase winding is wound around tooth portion 32-9.

[0038] Furthermore, the conductor wires extending from the coils wound around each tooth portion are electrically connected to terminals 60 housed in housings 46 formed on the outer circumferential surface 45. The conductor wires also have connection wires 70 that extend from the coils 50, are drawn out to the outer circumferential surface 45 of the insulator 24, and are connected to the terminals 60. In other words, the connection wires 70 can be considered to be a part of the conductor wires extending from the coils 50, that are drawn out to the outer circumferential surface 45 of the insulator 24, and are connected to the terminals 60. The connection wires 70 include a neutral wire and a power wire.

[0039] Fig. 5 is a top view showing the coil 50, a portion of the insulator 24, and the accommodating portion 46. Fig. 6 is a perspective view showing the accommodating portion 46 and a portion of the insulator 24. Fig. 7 is a cross-sectional view of the insulator 24 and the accommodating portion 46 cut along the radial direction.

[0040] 5 to 7, when describing one of the multiple winding drum portions 42-1 to 42-9 or the multiple flange portions 43-1 to 43-9, it may be described as a wound portion 42 or flange portion 43. For example, in FIG. 5, flange portion 43 is a flange portion with which housing portion 46 overlaps in the radial direction, and therefore corresponds to flange portion 43-3, flange portion 43-6, or flange portion 43-9 shown in FIG.

[0041] Three accommodating portions 46 are formed integrally with the insulator 24 and spaced equally apart in the circumferential direction of the outer circumferential surface 45. In this embodiment, connection wires 70 for the three phases are drawn into the accommodating portions 46. The terminals 60 accommodated in the accommodating portions 46 electrically connect the connection wires 70 for the three phases to each other, thereby forming a neutral point.

[0042] As shown in FIG. 5 , the housing 46 has an inner diameter sidewall 54 facing the radially inner side of the motor 5 and an outer diameter sidewall 55 facing the radially outer side of the motor 5. A slit 71 (connection wire passing portion) is formed in each of the inner diameter sidewall 54 and the outer diameter sidewall 55. The connection wire 70 passes through the slit 71 (connection wire passing portion) of the inner diameter sidewall 54, thereby being drawn into the housing 46 from the radially inner side of the housing 46. The connection wire 70 passes through the slit 71 (connection wire passing portion) of the outer diameter sidewall 55, thereby being drawn out from the housing 46 to a radially outer side beyond the housing 46. The housing 46 also has a protrusion 56 that protrudes radially outward from the outer diameter sidewall 55. The protrusion 56 supports the connection wire 46 drawn out radially outward from within the housing 46, facilitating the cutting of the connection wire 46, as described below.

[0043] 5, the insulator 24 is formed with partition walls 48 located between the coil 50 and the housing portion 46 when viewed from the direction of the rotation shaft 16 that is the rotation center of the motor 5 (when viewed from above). In this embodiment, the partition walls 48 are formed corresponding to each of the three housing portions 46 formed in the insulator 24, and therefore three partition walls 48 are also formed.

[0044] As shown in FIGS. 5 to 7 , at least a portion of the partition wall 48 is located between the connection wire 70 and the coil 50 when viewed from the direction of the rotation shaft 16. The partition wall 48 is formed so that at least a portion of the terminal 60 overlaps with the partition wall 48 in the radial direction when viewed from the direction of the rotation shaft 16. In this embodiment, the partition wall 48 overlaps with the entire terminal 60 in the radial direction. That is, the partition wall 48 extends widely in the circumferential direction so that the angle θ1 formed between each of the circumferential ends of the partition wall 48 and the rotation shaft 16 is larger than the angle θ2 formed between each of the circumferential ends of the terminal 60 and the rotation shaft 16, and so that the entire terminal 60 fits within the range of the angle θ1 in the circumferential direction. As shown in FIG. 7 , the partition wall 48 is formed so that it overlaps with at least a portion of the terminal 60 in the height direction.

[0045] 6, the insulator 24 is formed with an extraction portion 49 for passing the connection wire 70 extending from the coil 50 from the inner periphery to the outer periphery of the insulator 24. In this embodiment, the extraction portion 49 is provided at a position that does not overlap with the accommodation portion 46 in the circumferential direction.

[0046] In this embodiment, the portion of the connection wire 70 passing through the lead-out portion 49 (see H1 in FIG. 6) and the portion of the connection wire 70 extending radially outward from the housing portion 46 (see H2 in FIG. 6) are located at approximately the same height. As a result, when the direction perpendicular to the direction of the rotation shaft 16 is defined as the horizontal direction, the connection wire 70 drawn out to the outer periphery of the insulator 24 can be drawn into the housing portion 46 while remaining approximately parallel to the horizontal direction, thereby making it possible to reduce the amount of conducting wire used. This is because, in the past, in order to ensure an insulation distance between the coil 50 and the connection wire 70, which are of different phases, the accommodating section 46 had to be positioned so that it protrudes farther in the axial direction than the outer wall section 41, and as a result, the connection wire 70 had to be routed diagonally to the horizontal direction along the outer surface of the outer wall section 41. However, in this embodiment, the insulation distance between the coil 50 and the connection wire 70 can be ensured by the partition 48 of the insulator 24, which is an insulating material, so there is no need to have the accommodating section 46 protrude farther in the axial direction from the outer wall section 41, and the connection wire 70 can be routed over the shortest distance while remaining approximately parallel to the horizontal direction along the outer surface of the outer wall section 41.

[0047] In this embodiment, in order to draw connection wires 70 (70U, 70V, 70W) of three phases, namely U-phase, V-phase, and W-phase, into terminals 60 of accommodating portion 46, three lead-out portions 49 are formed in the vicinity of accommodating portion 46. For example, as shown in FIGS. 4 and 5 , connection wire 70U extending from coil 50 (U-phase coil wound around tooth portion 32-4) that radially overlaps accommodating portion 46, and connection wires 70V and 70W extending from adjacent coils on either side thereof (W-phase coil wound around tooth portion 32-3 and V-phase coil wound around tooth portion 32-5) pass through each lead-out portion 49 and are drawn into connection wire arrangement space 72, which will be described later.

[0048] Furthermore, the insulator 24 has a connection wire arrangement space 72 between the accommodating portion 46 and the partition wall 48, through which the connection wires 70 pass. In this embodiment, as shown in FIGS. 5 and 6 , the U-phase connection wire 70U and the V-phase connection wire 70V pass through the connection wire arrangement space 72 while overlapping at approximately the same height in the height direction, and are drawn into the accommodating portion 46 from the inner circumferential side of the motor 5. The W-phase connection wire 70W passes through the connection wire arrangement space 72 from the lead-out portion 49 and is drawn into the accommodating portion 46 from the radially inner side (the inner circumferential side of the motor 5). Each of the connection wires 70 (70U, 70V, 70W) drawn into the accommodating portion 46 passes through the connection wire passing portion 71 and is cut while being supported by the protrusion 56 at a position radially outward of the outer diameter sidewall 55.

[0049] 3 and 5, or may be formed in an arc shape to match the circumference of the outer wall portion 41 of the insulator 24. The thickness of the partition wall 48 is also not limited, and may be formed to any thickness that can ensure an insulation distance between the coil 50 and the connection wire 70 or the terminal 60 and that provides a connection wire arrangement space 72 having a width that allows the connection wire 70 to pass through.

[0050] The terminal 60 is not limited to a neutral point formed by electrically connecting the three-phase connection lines 70 (70U, 70V, 70W) together, but may also be used as a power supply relay terminal.

[0051] As described above, according to this embodiment, the motor 5 has an insulator 24 in which the partition wall 48 is formed, which is located between the coil 50 and the accommodating portion 46 when viewed in the axial direction of the rotating shaft 16. In other words, the insulator 24 is formed with the accommodating portion 46 that accommodates the terminal 60, and the partition wall 48 that is located between the coil 50 and the accommodating portion 46. This allows the insulating partition wall 48 to be located between the conductor (connection wire 70) drawn into the accommodating portion 46 (housing) and the terminal 60. Therefore, it is possible to ensure the insulation distance (clear distance, creepage distance) between the coil 50 and the connection wire 70 or the terminal 60 while preventing the motor 5 from becoming larger in the axial direction (rotating shaft 16).

[0052] Furthermore, if one were to try to reduce the axial height of the insulator 24 without the partition wall 48, it would be necessary to increase the insulation distance by protruding the accommodating portion 46 (housing) in the insulator 24 radially outward, which would result in the insulator 24 becoming larger in the radial direction.

[0053] In contrast, in the present invention, an insulating partition 48 can be positioned between the coil 50 and the housing 46 when viewed from the axial direction, thereby preventing the accommodating portion 46 from protruding radially outward from the insulator 24, and allowing the insulator 24 to be made smaller radially.

[0054] Furthermore, according to this embodiment, the conductor extending from the coil 50 has a connection wire 70 that is drawn to the outer periphery of the insulator 24 and connected to the terminal 60, and at least a portion of the partition wall 48 is located between the connection wire 70 and the coil 50 when viewed from the direction of the rotating shaft 16. As a result, the insulating partition wall 48 is formed between the connection wire 70 and the coil 50, making it possible to ensure an appropriate insulation distance.

[0055] Furthermore, according to this embodiment, the connection wire 70 is drawn into the housing portion 46 from the inner peripheral side of the motor 5 as viewed from the housing portion 46. As a result, the connection wire 70 passing through the housing portion 46 is drawn out from the radially outer side and cut at a position outside the insulator 24. This cutting operation can be performed because the connection wire 70 is drawn into the housing portion 46 from the inner diameter side as viewed from the housing portion 46.

[0056] Furthermore, according to this embodiment, the accommodation portion 46 has an inner diameter sidewall 54 facing the radially inside of the motor 5 and an outer diameter sidewall 55 facing the radially outside of the motor 5, and slits 71 through which the connection wire 70 passes are formed in each of the inner diameter sidewall 54 and the outer diameter sidewall 55, and the connection wire 70 is cut at a position radially outside the outer diameter sidewall 55. As a result, the connection wire 70 is cut with a blade while it is in a receiving portion on the radial outside of the coil 50 to prevent crimping failure, which improves reliability in manufacturing.

[0057] Furthermore, according to the present embodiment, the partition wall 48 is formed so that at least a portion of the terminal 60 overlaps with the partition wall 48 in the radial direction when viewed from the direction of the rotating shaft 16. As a result, the insulating partition wall 48 is formed so as to overlap with the terminal 60 in the radial direction, and therefore, an appropriate insulation distance between the terminal 60 and the coil 50 can be ensured.

[0058] Furthermore, according to the present embodiment, the partition wall 48 is formed so as to overlap in the height direction with at least a portion of the terminal 60. As a result, the insulating partition wall 48 is formed so as to overlap in the height direction with the terminal 60, and therefore, an appropriate insulation distance between the terminal 60 and the coil 50 can be ensured.

[0059] Furthermore, according to this embodiment, the insulator 24 has a connection wire arrangement space 72, through which the connection wire 70 passes, between the accommodating portion 46 and the partition wall 48. This prevents the insulator 24 from becoming large in height, and allows the connection wire, which is conducted by the terminal 60, to be drawn out in the radially outer direction.

[0060] Furthermore, according to this embodiment, the insulator 24 is formed with a lead-out portion 49 for passing the connection wire 70 extending from the coil 50 from the inner periphery to the outer periphery of the insulator 24, and the lead-out portion 49 is provided at a position that does not overlap the accommodating portion 46 in the circumferential direction. This makes it possible to prevent the insulation distance between the terminal 60 and the coil 50 from being shortened via the lead-out portion 49 formed in the insulator 24.

[0061] Furthermore, according to this embodiment, the portion of the connection line 70 passing through the draw-out portion 49 and the portion of the connection line 70 extending radially outward from the housing portion 46 are positioned at approximately the same height in the height direction. This allows the length of the connection line 70 to be shortened.

[0062] Furthermore, according to this embodiment, the motor 5 is a three-phase motor, the connection wires 70 of each of the three phases are drawn into the housing 46, and the terminals 60 form a neutral point by electrically connecting the connection wires 70 of the three phases together. This makes it possible to ensure appropriate insulation even when the motor is limited to a three-phase motor and the terminals are used to form a neutral point or the like.

[0063] Furthermore, according to this embodiment, the compressor 1 includes a motor 5, a housing 2 that houses the motor 5, and a compression unit 6 that is housed inside the housing 2 and driven by the motor 5. This allows the axial height of the motor 5 to be reduced, thereby making it possible to reduce the size of the compressor 1 in the height direction. In addition, the internal space of the compressor 1 can be increased. [Explanation of symbols]

[0064] 1...Compressor 5...Motor 16...Rotation axis 23... Stator core 24...Upper insulator 26...Multiple windings 32...Teeth part 42...winding body 46...Storage section 48...Bulkhead 49…Drawer part 50...Coil 54...Inner diameter side wall 55...External side wall 60...Terminal 70...connecting wire 71...Connecting line passage 72...Connection line arrangement space

Claims

1. A motor comprising: a stator core having a plurality of teeth; an insulator having a plurality of winding drums; a plurality of coils formed by winding conductors around the teeth via the winding drums; and terminals electrically connected to the conductors extending from the coils, wherein the insulator is integrally formed with a housing portion for housing the terminals, The insulator has a partition wall formed therein, which is located between the coil and the housing portion when viewed in the axial direction of the rotating shaft of the motor. Motor.

2. 2. The motor according to claim 1, the conducting wire extending from the coil has a connecting wire drawn to the outer periphery of the insulator and connected to the terminal, At least a portion of the partition wall is located between the connection wire and the coil when viewed in the axial direction. Motor.

3. 3. The motor according to claim 2, The connecting wire is drawn into the housing from the inner peripheral side of the motor as viewed from the housing. Motor.

4. 4. The motor according to claim 3, the accommodating portion has an inner diameter sidewall facing the radially inward direction of the motor and an outer diameter sidewall facing the radially outward direction of the motor, and connection wire passing portions through which the connection wires are passed are formed in each of the inner diameter sidewall and the outer diameter sidewall; The connecting wire is cut at a position radially outward of the outer diameter sidewall. Motor.

5. 2. The motor according to claim 1, The partition wall is formed so that at least a portion of the terminal overlaps the partition wall in the radial direction when viewed from the axial direction. Motor.

6. 2. The motor according to claim 1, The partition wall is formed so as to overlap at least a portion of the terminal in the height direction. Motor.

7. 3. The motor according to claim 2, The insulator has a connection line arrangement space between the accommodating portion and the partition wall, through which the connection line is passed. Motor.

8. 3. The motor according to claim 2, the insulator is formed with a lead-out portion for passing the connection wire extending from the coil from the inner periphery side to the outer periphery side of the insulator, The pull-out portion is provided at a position where it does not overlap with the housing portion in the circumferential direction. Motor.

9. 9. The motor according to claim 8, The portion of the connection line passing through the lead-out portion and the portion of the connection line extending radially outward from the accommodation portion are positioned at substantially the same height in the height direction. Motor.

10. 3. The motor according to claim 2, the motor is a three-phase motor; The connection wires of the three phases are drawn into the housing portion, The terminal forms a neutral point by electrically connecting the three phase conductors together. Motor.

11. A motor according to any one of claims 1 to 10; a compressor main body container that houses the motor therein; a compression mechanism section housed inside the compressor main body container and driven by the motor; A compressor comprising:

Citation Information

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