WO2015060409A1 - 固定子、電動機、及び空気調和機 - Google Patents
固定子、電動機、及び空気調和機 Download PDFInfo
- Publication number
- WO2015060409A1 WO2015060409A1 PCT/JP2014/078265 JP2014078265W WO2015060409A1 WO 2015060409 A1 WO2015060409 A1 WO 2015060409A1 JP 2014078265 W JP2014078265 W JP 2014078265W WO 2015060409 A1 WO2015060409 A1 WO 2015060409A1
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- WIPO (PCT)
- Prior art keywords
- lead wire
- sensor
- power supply
- lead
- board
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/08—Insulating casings
Definitions
- the present invention relates to a stator, an electric motor, and an air conditioner.
- a sensor lead wire board-in connector is assembled on one surface of the sensor board, and the sensor lead wire is wired via the sensor lead wire board-in connector, and on the other surface of the sensor board.
- a board lead-in connector for power supply lead wires is assembled, and a power lead wire is wired through the board lead-in connector for power supply lead wires (for example, Patent Document 1).
- the present invention has been made in view of the above, and is applied to a sensor substrate provided with a bearing through hole, and is a mold stator having a lead wire lead-out structure that is easy to assemble and reduced in cost. It aims at providing a mold electric motor and an air conditioner.
- the stator according to the present invention is assembled to one end of the stator core in the axial direction, and provided with a bearing through hole for passing the bearing of the rotor.
- a sensor substrate provided with a cutout for providing a lead wire on the outer periphery, and a lead wire holding component that is assembled to the sensor substrate and holds the lead wire, wherein the lead wire holding component is A pair of legs extending toward the bearing through-hole, a pair of first locking portions provided on the pair of legs and locked to an edge of the bearing through-hole, and the both sides of the notch A pair of second locking portions locked to the edge of the sensor substrate.
- FIG. 1 is a perspective view showing a configuration of a stator assembly of an electric motor according to Embodiment 1.
- FIG. FIG. 2 is a plan view showing the configuration of the sensor substrate.
- FIG. 3 is a view showing the assembly of the power lead board in-connector to the sensor substrate.
- FIG. 4 is a diagram showing the assembly of the substrate pressing component to the sensor substrate.
- FIG. 5 is a view showing the assembly of the sensor lead wire board-in connector to the sensor substrate.
- FIG. 6 is a diagram showing the configuration of the power supply lead wire holding component.
- FIG. 7 is a diagram showing the configuration of the lead wire lead-out component.
- FIG. 8 is a diagram showing assembly of the power supply lead wire holding component to the sensor substrate.
- FIG. 9 is a diagram showing the configuration of the sensor lead wire holding component.
- FIG. 10 is a diagram showing assembly of the lead wire lead-out component to the sensor substrate.
- FIG. 11 is a diagram showing a sensor substrate on which lead wires are wired.
- FIG. 12 is a perspective view showing the assembly of the sensor substrate on which the lead wire is wired to the stator.
- FIG. 13 is a perspective view showing a mold stator.
- FIG. 14 is a longitudinal sectional view showing the configuration of the mold motor.
- FIG. 15 is a diagram illustrating an example of a configuration of an air conditioner according to Embodiment 2.
- FIG. 1 is a perspective view showing a configuration of a stator assembly of an electric motor according to the present embodiment
- FIG. 2 is a plan view showing a configuration of a sensor board
- FIG. 3 is an assembly of a board lead-in connector for power leads to the sensor board.
- FIG. 4 is a diagram showing the assembly of the substrate pressing component to the sensor substrate
- FIG. 5 is a diagram illustrating the assembly of the sensor lead wire board-in connector to the sensor substrate
- FIG. 6 is the power supply lead wire holding component.
- 7 is a diagram showing the configuration of the lead wire lead-out component
- FIG. 8 is a diagram showing the assembly of the power supply lead wire holding component to the sensor board
- FIG. 9 is the configuration of the sensor lead wire holding component.
- FIG. 10 is a diagram showing assembly of lead wire lead-out parts to a sensor substrate
- FIG. 11 is a diagram showing a sensor substrate with lead wires wired
- FIG. 12 is a sensor substrate stator with lead wires wired
- FIG, 13 is a perspective view showing a mold stator
- FIG. 14 is a longitudinal sectional view showing the structure of a mold motor.
- the stator assembly 60 includes an annular stator 61, a sensor substrate 1 that is assembled to the stator 61 at one end in the axial direction of the stator 61, and an anti-stator of the sensor substrate 1 that is assembled to the sensor substrate 1.
- the substrate holding part 6 for holding the side surface, the board lead-in connector 4 for the power supply lead wire assembled to the surface opposite to the stator side of the sensor board 1, and the sensor board 1 like the board lead-in connector 4 for the power supply lead wire Connected to the board lead-in connector 5 for the sensor lead wire, the power lead wire 2 connected to the board lead-in connector 4 for power lead wire, and the board lead-in connector 5 for the sensor lead wire.
- the sensor lead wire 3, the lead wire lead-out component 8 that leads out the power supply lead wire 2 and the sensor lead wire 3, and the sensor substrate 1 and the lead wire lead-out component 8 are assembled and A power lead holding part 7 that holds the power lead 2 together with the lead wire lead part 8 and a sensor lead holding part that holds the sensor lead 3 together with the lead lead part 8 that is assembled to the power lead holding part 7 9 (FIG. 1).
- Anti-stator side means the side opposite to the stator side. In the following, “radial direction” means the radial direction of the stator, and “axial direction” means the axial direction of the stator.
- the stator 61 includes a stator core 62 that is formed by punching electromagnetic steel sheets into a band shape and laminated by caulking, welding, adhesion, and the like, and a thermoplastic resin such as PBT (polybutylene terephthalate) and the stator core 62.
- the sensor substrate 1 is assembled to the stator core 62 at one end in the axial direction of the stator core 62.
- the insulating part 63 includes a plurality of pins 64 for assembling the sensor substrate 1, a hole into which the neutral point terminal 65 is inserted, and a plurality of holes into which the power supply terminal 66 is inserted.
- the neutral point terminal 65 is formed by punching and bending a sheet metal.
- the neutral point terminal 65 includes two hook portions to which one end of the magnet wire is hooked, and is inserted into a hole for a neutral point terminal provided in the insulating portion 63 and assembled.
- the power terminal 66 is created by bending a flat wire. The power terminal 66 is inserted into a power terminal hole provided in the insulating portion 63 and assembled.
- the other end of the magnet wire is hooked on the hook portion of the power supply terminal 66 and joined to the hook portion by fusing or soldering.
- the stator 61 is obtained by bending a belt-shaped core constituting the stator core 62 provided with the coil 68 into an annular shape and then welding a butt portion (not shown).
- the stator 61 is formed in an annular shape after the coil 68 is applied to the electromagnetic steel sheet punched in a strip shape, but the stator core 62 punched in an annular shape can also be used. .
- FIG. 2 shows the surface of the sensor substrate 1 on the side opposite to the stator.
- the sensor substrate 1 has a donut shape (annular shape).
- a board-in connector installation part 10 on which a board lead-in connector 4 for power supply leads is installed and a board-in connector installation part on which a board lead-in connector 5 for sensor leads is installed. 11 is provided on the surface of the sensor substrate 1 opposite to the stator side.
- a rotation detection circuit including a Hall IC 12 that detects the rotation of the rotor of the electric motor is formed on the surface of the sensor substrate 1 on the stator side.
- a power supply wiring pattern is formed across both surfaces of the sensor substrate 1.
- the sensor substrate 1 is provided with a lead wire lead-out notch 13 on the outer peripheral portion serving as a lead wire lead-out portion.
- the notch 13 has a square shape, for example.
- the sensor substrate 1 is provided with a notch 14 that further cuts out both corners on the inner diameter side (bearing through hole 15 side) of the notch 13.
- both ends on the inner diameter side of the notch 13 are further notched to provide the notch 14.
- both ends are both ends in a direction orthogonal to the radial direction.
- the notch 14 has, for example, a semicircular shape.
- the notch 14 is used to escape the power supply lead wire 2 for letting out the power supply lead wire 2 that protrudes outward in the circumferential direction from the sensor lead wire 3 when the sensor lead wire 3 is wired to the sensor substrate 1.
- the bearing hole 15 is provided in a round shape at the center position of the sensor substrate 1, for example.
- the bearing through hole 15 is a hole through which the bearing 103 (FIG. 14) of the rotor 101 is passed. Further, the bearing through-hole 15 is cut out, for example, in a square shape on the lead wire lead-out side. That is, the sensor substrate 1 is provided with a notch 16 connected to the bearing through hole 15 on the lead wire lead-out portion side (notch 13 side) of the bearing through hole 15.
- the notch 16 can also be regarded as a part of the bearing through hole 15.
- substrate 1 should just be the shape in which the bearing through-hole 15 was provided, and shapes other than a donut shape may be sufficient as it.
- the board-in connector installation portion 11 is disposed between the notch 16 and the notch 13 in the sensor substrate 1. Further, the board-in connector installation part 10 is installed to face the board-in connector installation part 11 with the bearing through hole 15 interposed therebetween.
- a plurality of pin through holes 18 and a plurality of terminal through holes 19 are provided on the outer periphery of the sensor substrate 1.
- the pin through hole 18 is a hole through which the pin 64 provided in the insulating portion 63 is inserted (FIG. 12).
- the terminal through hole 19 is a hole through which the power supply terminal 66 is inserted (FIG. 12).
- the sensor substrate 1 is provided with a plurality of pin through holes 17 through which the pins 26 (FIG. 4) provided on the substrate pressing component 6 are inserted when the substrate pressing component 6 is assembled.
- a notch 20 into which a foot 29 (FIG. 4) provided on the substrate pressing component 6 is fitted when the substrate pressing component 6 is assembled is provided on the outer periphery of the sensor substrate 1.
- the board lead-in connector 4 for the power supply lead wire is installed in the board-in connector installation unit 10, and solder is applied to the terminals (not shown) exposed from the surface of the sensor board 1 on the stator side.
- a power supply lead 2 is connected to the board board connector 4. Thereby, the sensor substrate 1 and the power supply lead wire 2 are connected via the power supply lead wire board-in connector 4.
- the power supply lead 2 includes power supply leads 2a to 2c.
- the power supply lead 2 is divided into one (power supply lead 2a) and two (power supply leads 2b, 2c). That is, one of the three power supply leads 2 (power supply lead 2a) is placed clockwise in the bearing through hole 15, and the remaining two (power supply lead 2b, 2c) are in the bearing through hole.
- the board pressing component 6 is assembled and wired to the sensor board 1 along the counterclockwise direction 15.
- the power supply lead wire 2 has one of the three (power supply lead wire 2a) along the bearing through hole 15 counterclockwise, and the remaining two (power supply lead wires 2b and 2c) pass through the bearing. You may make it follow the hole 15 clockwise.
- the substrate pressing component 6 includes a plurality of substrate pressing protrusions 25 installed on the sensor substrate 1, a plurality of pins 26 inserted into the pin through holes 17 of the sensor substrate 1, and a plurality of substrate pressing protrusions. 25 and a connecting portion 27 that connects the plurality of pins 26 together.
- the substrate pressing protrusion 25 extends toward the sensor substrate 1, and its end surface is in contact with the surface of the sensor substrate 1.
- six substrate pressing protrusions 25 are provided.
- three pins 26 are provided.
- the connecting portion 27 is thin.
- the substrate pressing protrusion 25 also has a protrusion extending toward the anti-stator side, and the end surface of the protrusion serves as a die contact surface during molding.
- the pin 26 has a protruding portion that extends toward the anti-stator side, and the end surface of the protruding portion serves as a mold contact surface during molding.
- the board holding component 6 has a plurality of pin through holes 28 and a leg that is hooked on the outer circumference of the sensor board 1 at a portion arranged on the outer circumference of the sensor board 1 when installed on the sensor board 1. 29 is provided.
- the pin through hole 28 communicates with the pin through hole 18 in a state where the substrate pressing component 6 is installed on the sensor substrate 1, and the pin 64 of the insulating portion 63 is inserted therethrough.
- Three pin through holes 28 are provided according to the number of pin through holes 18.
- a plurality (five in the illustrated example) of substrate pressing protrusions 25 are arranged on the outer periphery of the bearing through hole 15.
- the power supply lead wire 2 is guided by the board pressing projections 25 and is routed along the outer periphery of the bearing through hole 15. As a result, it is possible to prevent the power supply lead 2 from sagging into the bearing through hole 15.
- the board holding component 6 since the pin 26 of the board holding component 6 is inserted into the pin through hole 17 of the sensor board 1, the board holding component 6 can be prevented from being deformed by the restoring force of the power supply lead wire 2, and the power supply lead Since the wiring of the line 2 to a predetermined position becomes possible, the quality in manufacturing is improved.
- the tip portion of the pin 26 that is inserted through the pin through hole 17 and exposed from the Hall IC mounting surface of the sensor substrate 1 is thermally welded or bonded to the axial direction of the substrate pressing component 6 (stator 61). Further, the quality can be further improved by preventing the movement of the power supply lead wire 2 and preventing the movement of the power supply lead wire 2.
- the end surfaces of the substrate pressing projection 25 and the projections extending to the side opposite to the stator of the pin 26 are brought into contact with the mold, so that at the time of molding.
- the deformation of the sensor substrate 1 due to the molding resin pressure and the displacement of the power supply lead 2 in the axial direction due to the connecting portion 27 can be prevented, so that the quality can be improved.
- the sensor lead wire board-in connector 5 is installed in the board-in connector installation part 11 of the sensor substrate 1, and the terminal exposed from the surface on which the Hall IC 12 of the sensor substrate 1 is mounted. Is soldered. As a result, the rotation detection circuit of the sensor substrate 1 and the sensor lead wire 3 are connected via the sensor lead wire board-in connector 5.
- the power supply lead 2 is bypassed by the board holding component 6 to bypass the bearing through hole 15 and is divided into the power supply lead 2a and the power supply leads 2b and 2c, and the power supply lead 2a and the power supply lead 2b, Since a space is ensured between 2c and the sensor lead wire 3, the sensor lead wire 3 can be wired between the power supply lead wire 2a and the power supply lead wires 2b and 2c. Thereby, the assembly process of the sensor lead wire 3 to the sensor lead wire board-in connector 5 is facilitated, the manufacturing cost is reduced, and the manufacturing quality can be improved.
- the wiring of the power supply lead wire 2 and the sensor lead wire 3 to the sensor board 1 is facilitated by using a board-in connector.
- the bearing through hole 15 and the outer periphery are arranged. If the wiring space between the two power leads 2 is limited, it may be difficult to wire all three power supply leads 2 together.
- the power supply lead wire 2 can be wired by dividing the power supply lead wire 2 into two hands as in the present embodiment. If the wiring space is not limited, the power supply lead wire 2 is not divided into two hands, and all three power supply lead wires 2 are collectively routed around the bearing through hole 15 and routed clockwise or counterclockwise. May be.
- the board lead-in connector 4 for the power supply lead wire is installed on the surface of the sensor board 1 on the stator side and the power supply lead wire 2 is wired. May be difficult.
- the present embodiment is effective. That is, both the power supply lead-in board-in connector 4 and the sensor lead-in board in-connector 5 are installed on the surface of the sensor substrate 1 where the Hall IC is not mounted (the surface on the side opposite to the stator), and the lead wire leads out.
- the sensor lead wire board-in connector 5 is arranged between the portion (notch 13) and the bearing through hole 15, and the wiring of the sensor lead wire 3 is minimized so that the sensor lead wire 3 is aligned with the bearing through hole 15. By not having such a configuration, the power supply lead 2 and the sensor lead 3 can be wired.
- the power supply lead wire board-in connector 4 is disposed between the bearing through hole 15 and the outer periphery on the side opposite to the lead wire lead-out portion of the sensor substrate 1, thereby Since the distribution of the power supply leads 2 to the board-in connector 5 is equalized (except for the difference in number), the sensor leads are compared to the case where the power-supply lead-in board-in connectors 4 are arranged at other locations. Assembling of the board-in connector 5 for wires is facilitated, manufacturing costs can be reduced, and quality can be improved.
- FIG. 6A is a plan view of the power supply lead wire holding component 7 as viewed from the stator side
- FIG. 6B is a side view of the power supply lead wire holding component 7
- FIG. It is the top view seen from. 8A is a plan view of the sensor substrate 1 on which the power supply lead wire holding component 7 is assembled as viewed from the stator side
- FIG. 8B is a plan view of the lead wire lead-out component 8 to the power supply lead wire holding component 7. It is a side view which shows an assembly
- the power supply lead wire holding component 7 is attached to the lead wire lead-out portion of the sensor substrate 1 as shown in FIG.
- the power supply lead wire holding component 7 includes a base portion 7a as a power supply lead wire holding portion, a pair of locking portions 7b locked to the edges of the sensor substrate 1 on both sides of the notch 13, and a sensor lead wire holding component 9.
- a pair of cored bar end surface abutting portions 7h where the end surfaces are installed and a pair of mounting portions 7g for mounting the lead wire lead-out component 8 are provided.
- the base portion 7a has a flat plate shape and has three grooves 7f for holding the power supply lead wire 2 on the surface on the side opposite to the stator.
- the pair of locking portions 7b are respectively provided at both ends on the inner diameter side (bearing through hole 15 side) of the base portion 7a. Specifically, the pair of locking portions 7b are provided so as to project outward from the both ends.
- both ends of the base portion 7a are both ends in a direction orthogonal to the radial direction.
- the locking portion 7 b comes into contact with the edge portion of the sensor substrate 1 on both sides of the notch 13.
- both sides of the notch 13 are both sides in a direction orthogonal to the radial direction.
- the locking portion 7 b abuts both the outer peripheral portion of the surface on the side opposite to the stator of the sensor substrate 1 and the side portion of the sensor substrate 1 on both sides of the notch 13, and both sides of the notch 13. Is locked to the edge of the sensor substrate 1 (FIG. 8B).
- locking part 7b is shown by 7l, 7m.
- the contact surfaces 7l and 7m are L-shaped in cross section.
- the locking portion 7 b is configured such that its end surface on the stator side forms the same surface as the surface on the stator side of the sensor substrate 1.
- the pair of mounting feet 7c extend from the pair of locking portions 7b to the outer diameter side. As will be described later, after the lead wire lead-out component 8 is assembled to the power supply lead wire holding component 7, the foot 9c of the sensor lead wire holding component 9 is fitted into the gap between the mounting foot 7c and the base portion 7a. The sensor lead wire holding component 9 is attached to the power supply lead wire holding component 7.
- the pair of legs 7d extend from both ends on the inner diameter side (bearing through hole 15 side) of the base portion 7a toward the bearing through hole 15, respectively. Further, for example, a distal end portion of the foot 7d is integrally provided with a locking portion 7e that extends in the axial direction and is hooked and locked by a notch 16 provided in the bearing through hole 15.
- the power supply lead wire holding component 7 is assembled to the sensor substrate 1 by assembling the locking portions 7b and 7e to the sensor substrate 1.
- the board retainer 7i which is a portion of the foot 7d on the side of the locking part 7e, is disposed on both sides of the board-in connector installation part 11 in a state where the power supply lead wire holding component 7 is assembled to the sensor board 1, and the sensor board
- the sensor substrate 1 is pressed against the surface of the stator 1 (FIGS. 6A and 8).
- the latching portions 7b and 7e are assembled to the sensor substrate 1, and the substrate pressing portion 7i of the foot 7d presses the sensor substrate 1 from the stator side, so that the sensor substrate 1 has the locking portion 7b and the substrate pressing portion 7i. Since it is sandwiched, it is possible to prevent the positional deviation of the power supply lead wire holding component 7 in the axial direction, and the quality of the product can be improved along with the improvement in manufacturing quality.
- the fitting portion 7j which is a portion of the foot 7d on the base portion 7a side is fitted into the notch 13 in a state where the power supply lead wire holding component 7 is assembled to the sensor substrate 1 (FIG. 6A, FIG. 8).
- the fitting portion 7j of the foot 7d is fitted into the notch 13 of the sensor substrate 1, it is possible to prevent the displacement of the power supply lead wire holding component 7 in the direction orthogonal to the lead wire lead-out direction (radial direction).
- the quality of the product can be improved along with the improvement of the quality in manufacturing.
- the locking portion 7e is disposed in a notch 16 connected to the bearing through hole 15. By doing so, the locking portion 7e is located at a position where it does not interfere with the wiring pattern on the sensor substrate 1 as much as possible, which is effective in routing the wiring pattern on the sensor substrate 1.
- the metal core end face abutting portion 7h is provided at the tip of the foot 7d. As will be described later, the core metal end surface abutting portion 7 h is a portion that abuts on the core metal end surface of the molding die of the stator 61.
- the pair of attachment portions 7g engage the pair of legs 8d of the lead wire lead-out component 8. As a result, the lead wire lead-out component 8 is attached to the power supply lead wire holding component 7.
- FIG. 7A is a plan view of the lead wire lead-out component 8 viewed from the stator side
- FIG. 7B is a side view of the lead wire lead-out component 8
- FIG. 7C is a view of the lead wire lead-out component 8 viewed from the anti-stator side. It is a top view.
- the lead wire lead-out component 8 is provided at both ends of the flat base portion 8a and the inner diameter side (bearing through hole 15 side) of the base portion 8a, and extends in the axial direction toward the stator side. And a pair of legs 8d.
- the base portion 8a is flat and has a plurality of grooves 8c for holding the sensor lead wires 3 on the surface on the side opposite to the stator, and three grooves 8b for holding the power supply leads 2 on the surface on the stator side.
- a plurality of sensor lead wires 3 are drawn out in the same number as the number of grooves 8c.
- the lead wire lead-out component 8 is moved in the direction of the arrow, and the foot 8d is fitted into the mounting portion 7g of the power lead wire holding component 7 to be locked. It is attached to the holding part 7.
- FIG. 9A is a plan view of the sensor lead wire holding component 9 as viewed from the stator side
- FIG. 9B is a side view of the sensor lead wire holding component 9
- FIG. 9C is a side view of the sensor lead wire holding component 9 on the anti-stator side. It is the top view seen from.
- the sensor lead wire holding component 9 includes a base portion 9a as a sensor lead wire holding portion and a pair of legs 9c.
- the base portion 9a is flat and has a plurality of grooves 9b for holding the sensor lead wires 3 on the surface on the stator side.
- the pair of legs 9c are provided at both ends on the inner diameter side (bearing through hole 15 side) of the base portion 9a, and have an L-shape that extends to the inner diameter side (bearing through hole 15 side) after extending to the stator side. .
- the sensor lead wire holding component 9 is a sensor lead wire holding component between the mounting foot 7c and the base portion 7a of the power lead wire holding component 7 with respect to the power lead wire holding component 7 to which the lead wire lead-out component 8 is assembled. 9 is fitted to the power supply lead wire holding component 7 by fitting the foot 9c.
- the portion extending to the inner diameter side (bearing through hole 15 side) of the foot 9c presses the surface of the sensor substrate 1 on the stator side, thereby preventing the positional displacement of the sensor substrate 1 in the axial direction. , Manufacturing quality can be improved, and product quality can be improved.
- the power supply lead wire 2 is routed from the power supply lead board board-in connector 4 to the notch 14 for power supply lead wire escape, bypassing the bearing through hole 15, and then the power supply lead wire escapement. Is passed between the legs 7 d of the power supply lead wire holding component 7 on the stator side of the sensor substrate 1, and further, the base portion 8 a of the lead wire lead-out component 8 and the base portion 7 a of the power supply lead wire holding component 7. And is pulled out from the lead wire lead-out portion.
- the sensor lead wire 3 is linearly drawn in the radial direction from the board lead-in connector 5 for the sensor lead wire toward the lead wire lead-out portion.
- the notch 14 for power supply lead wire escape is arranged outside the occupation range of the group 3 of sensor lead wires. That is, the length between the pair of cutouts 14 is larger than the occupied width of the sensor lead wire 3 group, and is arranged outside the occupied range of the sensor lead wire 3 group in a state where the sensor lead wire 3 group is wired. . Accordingly, the power supply lead wire 2 can be passed through the notch 14 without being obstructed by the sensor lead wire 3 group. By doing so, the power supply lead 2 can be easily routed, and the manufacturing cost can be reduced.
- the notch 13 in the lead wire lead-out portion is larger than the occupied width of the group of sensor lead wires 3.
- the sensor substrate 1 is small and the notch 13 cannot be made large, or when it is desired to make the lead wire lead-out component 8 as small as possible, it is effective to provide the notch 14 for power lead escape. is there.
- the power supply lead wire notch 14 is provided on both sides of the notch 13 of the lead wire lead-out portion.
- the power supply lead escape notches 14 need only be provided on one side of the notches 13.
- the sensor lead wire 3 is routed to the stator side of the sensor substrate 1 through the notch 14 for escaping the power lead wire. Wired on line 2. By doing so, the movement of the power supply lead wire 2 in the lead wire lead-out portion is restricted by the sensor lead wire 3 in the axial direction. Therefore, it is possible to prevent the power lead lead 2 from being exposed to the outer shape at the time of molding. Improvement can be achieved.
- the sensor lead wire holding component 9 is moved in the direction of the arrow in FIG. 10 so that the foot 9c of the sensor lead wire holding component 9 is fitted between the mounting foot 7c of the power supply lead wire holding component 7 and the base portion 7a. Then, the sensor lead wire holding component 9 is assembled to the power supply lead wire holding component 7. As a result, the sensor lead wire 3 is sandwiched and held between the lead wire lead-out component 8 and the sensor lead wire holding component 9 and is pulled out from the lead wire lead-out portion.
- the sensor substrate 1 to which the power supply lead wire 2 and the sensor lead wire 3 are attached is assembled to the stator 61.
- a plurality of pins 64 provided in the insulating portion 63 are inserted into the pin through holes 18 (FIG. 2) of the sensor substrate 1 and the pin through holes 28 (FIG. 4) of the substrate holding component 6 to be positioned. Is done.
- the power supply terminal 66 assembled to the insulating portion 63 is passed through the terminal through hole 19 (FIG. 2) of the sensor substrate 1.
- the pins 64 exposed from the substrate holding component 6 are thermally welded (welding portion 71 in FIG. 1), and solder is applied to the power supply terminal 66 exposed from the sensor substrate 1 (solder portion 70 in FIG. 1). ),
- the stator assembly 60 assembled with the sensor substrate 1 shown in FIG. 1 is completed.
- FIG. 13 shows the outer shape of the mold stator 100.
- the mold stator 100 is obtained by placing the stator assembly 60 (FIG. 1) in a mold and molding with a mold resin such as BMC (Bulk Molding Compound). That is, the mold stator 100 includes a mold resin portion 90 that covers the stator 61.
- BMC Bulk Molding Compound
- the core metal end surface abutting portion 7h provided on the foot 7d of the power supply lead wire holding component 7 is in contact with the end surface of the core metal of the mold.
- the end surfaces of the substrate pressing projections 25 provided on the pressing component 6 and the projections extending to the anti-stator side of the pins 26 are in contact with the end surface opposite to the opening of the mold.
- FIG. 14 shows a cross-sectional configuration of the molded electric motor 200.
- the mold electric motor 200 includes a rotor 101 having a shaft 102, a bearing 103 assembled to the shaft 102, a mold stator 100, and a bracket 104 that is press-fitted into the mold stator 100.
- a stator 61 and a sensor substrate 1 are shown as a component of the mold stator 100.
- the mold stator 100 and the molded electric motor 200 have been described. However, the present embodiment can also be applied to an unmolded stator 61 and an electric motor including the stator 61.
- the power supply lead wire holding component 7 is provided on the pair of legs 7 d extending toward the bearing through hole 15 and the pair of legs 7 d, and on the edge of the bearing through hole 15.
- a pair of locking portions 7e to be locked and a pair of locking portions 7b to be locked to the edge portions of the sensor substrate 1 on both sides of the notch 13 are provided.
- the power supply lead wire holding component 7 is provided with a pair of legs 7d, a pair of locking portions 7e, and a pair of locking portions 7b. It can also be provided. Moreover, in this Embodiment, although the leg 7d, the latching
- the structure of the power supply lead wire holding component 7 is applied to the sensor substrate 1 having the bearing through hole 15 and the notches 13 and 16, and this structure is the power supply lead wire board-in connector 4 and the sensor lead.
- the present invention can be applied regardless of the installation location of the line board-in connector 5. For example, even when the power supply lead-in board-in connector 4 is installed on the surface of the sensor board 1 on the stator side and the sensor lead-wire board-in connector 5 is installed on the surface of the sensor board 1 on the side opposite to the stator. As long as the power supply lead 2 and the sensor lead 3 can be wired, the above structure can be applied.
- the sensor substrate 1 provided with the bearing through holes 15 is assembled to one end of the stator 61, and the bearing through holes 15 and the notches 13 on the surface of the sensor substrate 1 on the side opposite to the stator are provided.
- the sensor lead wire board-in connector 5 is installed between the power supply lead wire and the sensor lead wire board in connector 5 on the surface opposite to the stator of the sensor board 1 with the bearing through hole 15 therebetween. Board-in connector 4 is installed.
- the outer diameter of the stator 61 is small and the size of the sensor substrate 1 is limited.
- the board lead-in connector 4 for the power supply lead wire is installed on the surface of the sensor substrate 1 on the stator side. Even if it becomes difficult, the power supply lead 2 and the sensor lead 3 can be wired.
- the sensor lead 3 is routed linearly to the lead wire lead-out portion, so that the power lead 2 and the sensor lead 3 Wiring is easy.
- the wiring is easy and the cost is reduced, and further, the lead wire wiring that can be applied regardless of the outer diameter of the stator is realized.
- the lead wire wiring including the structure of the lead wire lead-out portion described in the present embodiment can be applied to a configuration in which the stator is not molded. That is, this embodiment can also be applied to a stator that is not molded and an electric motor that includes the stator. Furthermore, an electric device equipped with such an electric motor can be provided.
- FIG. FIG. 15 is a diagram illustrating an example of the configuration of the air conditioner according to the present embodiment.
- the air conditioner 210 according to the present embodiment includes an indoor unit 201 and an outdoor unit 202 connected to the indoor unit 201.
- the outdoor unit 202 includes a blower equipped with a molded electric motor 200a.
- the indoor unit 201 also includes a blower on which the molded electric motor 200b is mounted.
- the mold motors 200a and 200b are both the mold motors described in the first embodiment.
- the cost of the air conditioner 210 is reduced by mounting the electric motor of the first embodiment in which the lead wire wiring with low cost, high quality and easy wiring is realized on the air conditioner 210. And improve quality.
- the electric motor of Embodiment 1 can also be mounted on electrical equipment other than the air conditioner, and in this case as well, the same effects as in this embodiment can be obtained.
- the present invention is useful as a stator, an electric motor, and an air conditioner.
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Abstract
Description
図1は本実施の形態に係る電動機の固定子組立の構成を示す斜視図、図2はセンサー基板の構成を示す平面図、図3は電源リード線用ボードインコネクタのセンサー基板への組付けを示す図、図4は基板押え部品のセンサー基板への組付けを示す図、図5はセンサーリード線用ボードインコネクタのセンサー基板への組付けを示す図、図6は電源リード線保持部品の構成を示す図、図7はリード線口出し部品の構成を示す図、図8は電源リード線保持部品のセンサー基板への組付けを示す図、図9はセンサーリード線保持部品の構成を示す図、図10はリード線口出し部品のセンサー基板への組付けを示す図、図11はリード線の配線がされたセンサー基板を示す図、図12はリード線が配線されたセンサー基板の固定子への組付けを示す斜視図、図13はモールド固定子を示す斜視図、図14はモールド電動機の構成を示す縦断面図である。以下、図1~図14を参照して、本実施の形態に係るモールド固定子及びモールド電動機について説明する。
図15は、本実施の形態に係る空気調和機の構成の一例を示す図である。本実施の形態に係る空気調和機210は、室内機201と、室内機201に接続される室外機202とを備える。室外機202は、モールド電動機200aを搭載した送風機を備えている。また、室内機201もモールド電動機200bを搭載した送風機を備えている。モールド電動機200a,200bは、いずれも実施の形態1で説明したモールド電動機である。
Claims (11)
- 固定子鉄心の軸方向の一端に組付けられ、回転子の軸受けを通すための軸受け通し穴が設けられるとともに、外周にリード線を口出しするための切欠きが設けられたセンサー基板と、
前記センサー基板に組付けられ、前記リード線を保持するリード線保持部品と、
を備え、
前記リード線保持部品は、前記軸受け通し穴に向かって伸びる一対の足と、前記一対の足に設けられ、前記軸受け通し穴の縁部に係止される一対の第1の係止部と、前記切欠きの両側における前記センサー基板の縁部に係止される一対の第2の係止部とを備える固定子。 - 前記一対の足は、それぞれ前記センサー基板の固定子鉄心側の面に当接して当該面を押える基板押え部を備える請求項1に記載の固定子。
- 前記一対の足は、それぞれ前記切欠きに嵌め込まれる嵌込部を備える請求項2に記載の固定子。
- 前記リード線は、電源リード線であり、
前記リード線保持部品は、電源リード線保持部品であり、
前記切欠きは、センサーリード線の口出しにも用いられ、
前記センサー基板には、前記センサーリード線が接続されるセンサーリード線用ボードインコネクタと前記電源リード線が接続される電源リード線用ボードインコネクタが設けられ、
前記センサーリード線用ボードインコネクタは、前記センサー基板の固定子鉄心側と反対側の面上における前記軸受け通し穴と前記切欠きとの間に設置され、
前記電源リード線用ボードインコネクタは、前記センサー基板の固定子鉄心側と反対側の面上において前記軸受け通し穴を挟んで前記センサーリード線用ボードインコネクタと対向して設置されている請求項3に記載の固定子。 - 前記電源リード線は、前記軸受け通し穴の外周を二手に分けられて前記切欠きまで引き回されている請求項4に記載の固定子。
- 前記センサー基板の固定子鉄心側と反対側の面上に組付けられ、前記センサー基板に当接して前記センサー基板を押える複数個の基板押え突起部が設けられた基板押え部品を備え、
前記電源リード線は、前記軸受け通し穴の外周に配置された複数個の前記基板押え突起部に案内されて引き回されている請求項5に記載の固定子。 - 前記基板押え部品は、前記センサー基板に設けられた複数個のピン通し穴に挿通される複数個のピンを有する請求項6に記載の固定子。
- 前記切欠きの前記軸受通し穴側でかつ前記固定子鉄心の径方向と直交する方向の両端に、一対の電源リード線逃し用の切欠きが設けられており、
前記電源リード線は、前記電源リード線用ボードインコネクタから前記軸受け通し穴を迂回して前記電源リード線逃し用の切欠きまで引き回された後、当該電源リード線逃し用の切欠きを通して前記センサー基板の固定子鉄心側で前記電源リード線保持部品の一対の足間に引き回され、
前記センサーリード線は、固定子鉄心側と反対側から平面視したときに、前記電源リード線逃し用の切欠きを介して前記センサー基板の固定子鉄心側に引き回された前記電源リード線の上に配線される請求項5に記載の固定子。 - 前記センサーリード線用ボードインコネクタには、複数本のセンサーリード線が接続されており、
前記一対の電源リード線逃し用の切欠き間の長さは、前記複数本のセンサーリード線の占有幅よりも大きく、
前記一対の電源リード線逃し用の切欠きは、前記複数本のセンサーリード線の占有範囲外に配置される請求項8に記載の固定子。 - 請求項1から9のいずれか1項に記載の固定子を備える電動機。
- 請求項10に記載の電動機が搭載されている空気調和機。
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CN201480058180.7A CN105659476B (zh) | 2013-10-24 | 2014-10-23 | 电动机、空调机及电器设备 |
US15/027,722 US9954413B2 (en) | 2013-10-24 | 2014-10-23 | Electric motor, air conditioner, and electric apparatus |
JP2015543917A JP6026004B2 (ja) | 2013-10-24 | 2014-10-23 | 電動機、空気調和機及び電気機器 |
EP14855326.6A EP3062423B1 (en) | 2013-10-24 | 2014-10-23 | Electric motor, air conditioner, and electric apparatus |
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