WO2016006594A1 - 電動機の固定子、電動機および空気調和機 - Google Patents
電動機の固定子、電動機および空気調和機 Download PDFInfo
- Publication number
- WO2016006594A1 WO2016006594A1 PCT/JP2015/069489 JP2015069489W WO2016006594A1 WO 2016006594 A1 WO2016006594 A1 WO 2016006594A1 JP 2015069489 W JP2015069489 W JP 2015069489W WO 2016006594 A1 WO2016006594 A1 WO 2016006594A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lead wire
- stator
- substrate
- wiring component
- housing
- Prior art date
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/02—Casings or enclosures characterised by the material thereof
-
- 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
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Definitions
- the present invention relates to an electric motor stator, an electric motor, and an air conditioner.
- stator described in Patent Document 1 As a stator of a conventional electric motor.
- the stator described in Patent Document 1 is assembled to a stator assembly, a substrate on which a sensor circuit for position detection is formed, a lead wire wiring component, and a lead portion of the lead wire wiring component.
- a power supply lead wire holding component to be held and a sensor lead wire holding component to be attached to the lead portion of the lead wire wiring component and holding the sensor lead wire, and the power supply lead wire and the sensor lead wire from the front and back of the lead portion It is characterized by being pulled out in two stages. According to the stator described in Patent Document 1, assembly is facilitated, and cost reduction and quality improvement can be realized.
- the present invention has been made in view of the above, and an object of the present invention is to obtain an electric motor stator, an electric motor, and an air conditioner that can further improve quality.
- the present invention provides a substrate on which a rotor position detection circuit is mounted and an axial end of a stator, and a sensor lead wire is connected to the position detection circuit.
- the lead wire wiring component is installed at a position on the second surface side of the lead wire wiring component facing the assembly position, and the lead wire wiring component is provided between the position where the substrate is assembled and the position where the housing is installed.
- a housing abutting portion.
- stator of the electric motor it is possible to reduce the distance between the substrate and the rotor, and it is possible to improve the detection accuracy of the rotor position and realize the downsizing of the electric motor.
- FIG. 1 is a perspective view of a stator assembly of an electric motor according to an embodiment of the present invention as viewed from the substrate side.
- FIG. 2 is a perspective view of the lead wire wiring component.
- FIG. 3 is a perspective view of the lead wiring component shown in FIG. 2 as viewed from the opposite side.
- FIG. 4 is a diagram illustrating an example of the substrate holding unit provided in the lead wire wiring component.
- FIG. 5 is a diagram illustrating an example of the substrate holding unit provided in the lead wire wiring component.
- FIG. 6 is a diagram illustrating an example of the substrate holding unit provided in the lead wire wiring component.
- FIG. 7 is a diagram illustrating an example of the substrate holding unit provided in the lead wire wiring component.
- FIG. 8 is an enlarged view of the substrate holding portion and its periphery.
- FIG. 9 is an enlarged view of the substrate holding portion and its periphery.
- FIG. 10 is a perspective view of the sensor substrate.
- FIG. 11 is a perspective view of the lead wire wiring component in a state where the power supply lead wire is routed.
- FIG. 12 is an enlarged view of the lead wire terminal holding portion.
- FIG. 13 is an enlarged view of the lead-out component and its periphery.
- FIG. 14 is a perspective view of a power supply lead wire holding component.
- FIG. 15 is a perspective view of a sensor lead wire holding component.
- FIG. 16 is a perspective view of the mold stator.
- FIG. 17 is a perspective view of a molded electric motor.
- FIG. 18 is a side view of the molded motor.
- FIG. 19 is a diagram illustrating a manufacturing process of the molded motor.
- FIG. 20 is a configuration diagram of an air conditioner incorporating a molded electric motor.
- FIG. 1 is a perspective view of a stator assembly of an electric motor according to an embodiment of the present invention as viewed from the substrate side.
- FIG. 2 is a perspective view of the lead wire wiring component.
- FIG. 3 is a perspective view of the lead wiring component shown in FIG. 2 as viewed from the opposite side.
- FIG. 4 is a diagram illustrating an example of a substrate holding unit provided in the lead wire wiring component.
- FIG. 5 is a diagram illustrating an example of a substrate holding portion provided in the lead wire wiring component.
- FIG. 6 is a diagram illustrating an example of a substrate holding portion provided in the lead wire wiring component.
- FIG. 7 is a view showing an example of a substrate holding part provided in the lead wire wiring component.
- FIG. 8 is an enlarged view of the substrate holding portion and its periphery.
- FIG. 9 is an enlarged view of the substrate holding portion and its periphery.
- FIG. 10 is a perspective view of the sensor substrate.
- FIG. 11 is a perspective view of the lead wire wiring component in a state where the power supply lead wire is drawn.
- FIG. 12 is an enlarged view of the lead wire terminal holding portion.
- FIG. 13 is an enlarged view of the lead-out component and its periphery.
- FIG. 14 is a perspective view of the power supply lead wire holding component.
- FIG. 15 is a perspective view of the sensor lead wire holding component.
- FIG. 16 is a perspective view of the mold stator.
- FIG. 17 is a perspective view of a molded electric motor.
- FIG. 18 is a side view of the mold motor.
- FIG. 19 is a diagram illustrating a manufacturing process of a molded motor.
- FIG. 20 is a configuration diagram of an air conditioner incorporating a
- the stator assembly 30 shown in FIG. 1 includes an annular stator 10, a lead wire wiring component 1 assembled to the stator 10 at one axial end of the stator 10, and a lead wire wiring component 1.
- a substrate 11 to be attached and a lead wire assembly 40 are provided.
- the stator 10 includes a stator core 82 in which electromagnetic steel plates are punched in a strip shape and laminated in the axial direction of a shaft 72 (see FIG. 17) of a rotor (not shown) by caulking, welding, adhesion, and the like.
- the insulating portion 83 and a winding 84 formed by winding a magnet wire around the insulating portion 83 are configured.
- the insulating part 83 is formed integrally with the stator core 82 by a thermoplastic resin such as PBT (polybutylene terephthalate), or is formed by assembling to the stator 10 after molding.
- the insulating portion 83 is provided with a plurality of pins 81 protruding to the substrate 11 side and a plurality of terminals 12 to which power from the outside is supplied.
- One end of the magnet wire is drawn around the hook portion 85 of the terminal 12 and joined by fusing or soldering.
- the terminals of all phases are put together to form a neutral point.
- connection side the outer side of the end face of the stator core 82 in the axial direction, that is, the side including the terminal 12 is referred to as a connection side, and the opposite side is referred to as an anti-connection side.
- the insulating outer wall 83a constituting the insulating portion 83 prevents the winding 84 from falling to the outer peripheral side of the stator core 82, and the lead wire wiring component 1 is fixed to the axial end portion on the connection side of the insulating outer wall 83a.
- a plurality of pins 81 for attachment to the child 10 are provided.
- the insulating inner wall 83b that constitutes the insulating portion 83 prevents the winding 84 from falling to the inner peripheral side of the stator core 82, and the stator assembly 30 is provided at the axial end of the insulating inner wall 83b on the opposite side of the connection.
- a protrusion (not shown) is provided that is held against the die core part in the axial direction.
- the axial end of the insulating outer wall 83a is formed so that its height is slightly higher than the maximum height in the axial direction of the winding 84.
- the winding 84 is formed such that its height in the axial direction decreases as it goes from the insulating outer wall 83a toward the insulating inner wall 83b.
- the height of the protrusion (not shown) on the anti-connection side of the insulating inner wall 83b is the same as the height of the axial end portion of the insulating outer wall 83a, a sufficient distance to the winding 84 is ensured. be able to.
- stator 10 when the stator 10 is installed on the die core part with the anti-connection side of the stator 10 facing down, the stator 10 is stably placed without the winding 84 hitting the mold core part. be able to. As a result, productivity is improved and quality is improved.
- the lead wire assembly 40 includes a power lead 8 that supplies power to the winding 84, a sensor lead 7, and a housing 80 connected to the end of the sensor lead 7.
- the housing 80 is connected to the terminal of the sensor lead wire 7 on the side that is inside the mold when the stator 10 is molded.
- the housing 80 includes a contact for electrically joining the sensor lead wire 7 and the position detection circuit formed on the substrate 11. This contact is exposed from one surface (stator side surface) of the substrate 11 in a state where the substrate 11 is assembled to a substrate holding portion 15 described later and the housing 80 is installed on the side opposite to the stator of the substrate 11. To do. By soldering the contacts exposed from one side of the substrate 11, the sensor lead wire 7 and the position detection circuit are electrically joined.
- sensor lead wire 7 and power supply lead wire 8 are wired using the lead wire wiring component 1. Further, the sensor lead wire 7 and the power supply lead wire 8 are a lead wire lead consisting of a power supply lead wire holding component 4 (see FIG. 14), a sensor lead wire holding component 5 (see FIG. 15) and a lead-out component 6 (see FIG. 13). The positional relationship with the lead wire wiring component 1 is maintained by the part 2 (see FIG. 1).
- the lead wire wiring component 1 is formed into a substantially donut shape using a thermoplastic resin such as PBT (see FIG. 2). As shown in FIG. 2, a plurality of mounting legs 13 to the stator 10 are provided on the outer periphery of the lead wire wiring component 1. Each attachment foot 13 has a hole 13a for inserting a pin 81 for attaching a lead wire wiring component provided in the insulating portion 83 of the stator 10. When assembling the lead wire wiring component 1 to the stator 10, the mounting foot 13 comes into contact with the wiring component installation surface of the insulating portion 83 of the stator 10 to perform axial positioning.
- a thermoplastic resin such as PBT
- the pin 81 of the insulating portion 83 is inserted into the hole 13a of the mounting foot 13 so that the lead wire wiring component 1 is positioned in the rotational direction.
- the lead wire wiring component 1 and the stator 10 are fixed by ultrasonically welding the pin 81, for example.
- the lead wire wiring component 1 includes a substrate holding portion 15 including a claw portion 31 and a groove portion 32 for assembling the substrate 11 on the inner peripheral side of the stator.
- a substrate 11 on which a rotor position detection circuit is mounted is assembled to the substrate holder 15.
- the substrate holding part 15 also includes a housing contact part 16a against which the housing 80 is pressed with a predetermined plate thickness.
- the plate thickness dimension of the housing contact portion 16a is adjusted in accordance with the length dimension of the above-described contact (contact for electrically joining the sensor lead wire 7 and the position detection circuit of the substrate 11).
- the mold thickness can be designed without depending on the contact length.
- housing abutting portion 16a is configured as a part of the lead wire wiring component 1, it is not necessary to use another component to secure the distance between the housing 80 and the substrate 11, and the cost can be reduced. .
- the housing contact portion 16a of the substrate holding portion 15 includes a contact insertion portion 17 at a position corresponding to the contact.
- a contact insertion portion 17 By providing the contact insertion portion 17, it is possible to avoid interference between the housing contact portion 16a and the contact and to increase the contact area between the housing 80 and the housing contact portion 16a.
- the axial displacement of the stator when the lead wire wiring component 1 and the substrate 11 are assembled can be suppressed.
- the contact insertion portion 17 may have any shape as long as it is provided at a position corresponding to the contact.
- a round hole, a polygonal shape, a long hole, or a rectangular through groove may be used. Any shape can be used as long as the condition of avoiding interference with the contact is satisfied.
- the substrate holding portion 15 includes a substrate contact portion 16b which is a surface opposite to the housing contact portion 16a which is a contact surface with the housing 80.
- the substrate holding portion 15 includes the substrate contact portion 16b, and the contact between the substrate contact portion 16b and the substrate 11 reduces the gap between the substrate 11 and the substrate contact portion 16b. 11 and the axial displacement of the stator when assembling the lead wire assembly 40 can be suppressed. Further, when the stator assembly 30 is molded, since the gap between the substrate 11 and the substrate contact portion 16b is reduced, generation of voids and the like during molding can be suppressed, and quality can be improved.
- the board holding part 15 of the lead wire wiring component 1 includes a space part (not shown) on the opposite surface of the housing contact part 16a that comes into contact with the housing 80, that is, on the side of the board contact part 16b.
- This space portion is provided to prevent contact between the housing 80 and the substrate 11.
- the shape of the housing abutting portion 16a that abuts on the housing 80 and the contact insertion portion 17 can be any shape and any combination as shown in FIGS.
- the housing 80 and the housing abutting portion 16a are assembled so as to contact each other.
- 80 and the housing contact portion 16a may enter a gap, and a layer may be formed between the two. Further, a gap may be formed between the housing 80 and the housing abutting portion 16a when the housing 80 and the substrate 11 are solder-welded. Therefore, the housing 80 and the housing contact portion 16a are not necessarily in contact with each other when they are configured as products due to manufacturing variations, and both may be in a non-contact state.
- the housing abutting portion 16a provided in the lead wire wiring component 1 is located between the substrate 11 and the housing 80, and the housing abutting portion 16a exits the housing 80 due to the thickness of the housing abutting portion 16a. It is possible to reduce the protruding amount of the contact with respect to the substrate 11, that is, the protruding amount of the contact from the rotor side surface of the substrate 11. Therefore, “reducing the protrusion amount of the contact makes it possible to reduce the distance between the substrate 11 and the rotor, thereby improving the detection accuracy of the rotor position and reducing the size of the electric motor. This does not impair the effect that the mold thickness can be designed without depending on ".
- the substrate 11 has a substantially rectangular shape with chamfered diagonal corners, and includes a groove portion 35 for locking the lead wire wiring component 1 on one long side, and the other length.
- the side is provided with a notch portion 36 that is partially cut out so as to be positioned when assembled to the lead wire wiring component 1.
- the board holding part 15 of the lead wire wiring component 1 includes a claw part 31 to be engaged with the groove part 35 of the board 11 and a groove part into which a long side part of the board 11 is cut out when the board 11 is assembled. 32.
- the notch portion 36 of the substrate 11 and the groove portion 32 of the substrate holding portion 15 it is possible to suppress the lead wire wiring component 1 and the substrate 11 from being moved or deformed by the molding pressure during molding. The quality of the electric motor can be improved.
- the substrate 11 is assembled to the lead wire wiring component 1 by inserting the long side of the substrate 11 that is notched into the groove 32 provided in the substrate holding portion 15 of the lead wire wiring component 1, whereby the substrate 11 is attached to the lead wire wiring component 1.
- the wiring component 1 can be easily assembled. Since it is not necessary to carelessly position the substrate 11 with the above structure, the area of the substrate 11 can be reduced, the number of substrates 11 can be increased, and the cost of the motor can be reduced.
- substrate 11 is soldered.
- the sensor lead wire 7 and the position detection circuit of the substrate 11 are electrically joined.
- the sensor lead wire 7 is routed toward the lead-out component 6 on the surface opposite to the surface on which the power supply lead of the lead-out component 6 is wired.
- the claw portion 31 for assembling the substrate 11 is connected to the donut-shaped main body 1 a of the lead wire wiring component 1 by a plurality of thin connecting portions 28. Therefore, the molding pressure that the substrate 11 receives during molding can be dispersed.
- the thin-walled connecting portion 28 includes a protrusion 29 that protrudes toward the anti-stator side, and the protrusion 29 comes into contact with the mold during molding, so that the substrate 11 can be positioned in the axial direction and prevented from being displaced (see FIG. 2, see FIG.
- the wiring of the power supply lead wire 8 will be described.
- the power supply lead wire 8 is routed to the terminal 12 of the stator 10 along the lead wire wiring component 1 via the lead wire lead-out portion 2. That is, the three-phase power lead wires constituting the power lead wire 8 are respectively routed to the terminals 12 of the stator 10 arranged at approximately 120 °.
- the three-phase power supply lead wire is positioned by contacting the terminal with the sheath peeled off against the wall of the lead wire terminal holding portion 14 and when the lead wire wiring component 1 is assembled to the stator 10. It is routed along the surface (lead wire wiring surface 21) of the component 1 on the stator 10 side and the wall (wall 22) provided on the inner periphery (see FIG. 3).
- the wall 22 is provided with a plurality of protrusions 22a for preventing the positional deviation of the power supply lead 8. Further, the power supply lead wire 8 is bent in the direction of the lead-out component 6 by a lead wire folding pin 27 provided in the vicinity of the lead-out component 6 and drawn, and a power supply lead wire holding projection (in the vicinity of the lead-out component 6 ( (Not shown). Note that the lead wire folding pin 27 is a protrusion having a role of preventing the positional deviation of the lead wire.
- the two lead wire folding pins 27 at both ends are formed higher than the middle pin by a predetermined height. Thereby, it is possible to prevent the power supply lead wire from being displaced in the axial direction in the vicinity of the lead wire lead-out portion, and to improve the quality.
- the three power supply lead wires 8 are routed to different lead wire terminal holding portions 14 via power supply lead wire holding portions formed by the lead-out component 6 and the power supply lead wire holding component 4 provided in the lower part thereof.
- the power supply lead wire 8 routed to the lead wire terminal holding portion 14 (first lead wire terminal holding portion) farthest from the lead component 6 is routed to the central groove (see FIG. 3) provided in the lead component 6. Further, it is routed to the first lead wire terminal holding portion.
- the power supply lead wires 8 wired to the lead wire terminal holding portions 14 (second lead wire terminal holding portions) on both sides of the lead-out component 6 are respectively drawn into the outer grooves (see FIG. 3) provided in the lead-out component 6. And is further routed to the second lead terminal holding portion.
- FIG. 11 is a diagram showing the lead wire wiring component 1 (stator side) in a state where the power supply lead wire 8 is routed.
- the core wires of the power supply lead wires 8 that have been stripped are fixed to the core wire holding portions 24 that are separated from the respective lead wire terminal holding portions 14 when the lead wire wiring components 1 are assembled to the stator 10.
- the terminal 12 of the child 10 and the core wire are held so as to be close to each other (see FIG. 12).
- an electrode escape recess 23 is provided in the lead wire wiring component 1 (see FIG. 12).
- the space of the electrode that sandwiches the terminal 12 and the core wire is necessary for the work of spot welding the core wire and the terminal 12 performed after the lead wire wiring component 1 is assembled to the stator 10. Since the recess 23 is provided, the power supply lead 8 is routed further to the stator 10 side than the lead wire wiring surface 21 (see FIG. 3) of the lead wire wiring component 1. Further, a misalignment prevention protrusion 25 is provided near the electrode escape recess 23. The misalignment prevention projection 25 positions the power supply lead 8 in the axial direction.
- the lead wire wiring component 1 includes a plurality of substantially trapezoidal pedestals 19 on the surface opposite to the stator.
- the stator assembly 30 can be positioned in the axial direction.
- the base 19 by making the base 19 into a substantially trapezoidal shape, the area where the base 19 is exposed to the outside of the mold stator can be reduced, and the buckling strength of the base 19 can be increased.
- the lead wire wiring component 1 includes a positioning portion 18 used for positioning at the time of molding performed after being attached to the stator 10 (see FIGS. 2 and 3).
- the positioning portion 18 is located inside the inner diameter of the stator 10 in a state where the lead wire wiring component 1 is attached to the stator 10 and is the stator assembly 30, and performs positioning in the radial direction of the mold die. It is provided at a predetermined position corresponding to a pin or a protrusion protruding from the shaft.
- the positioning portion 18 has an insertion hole 18a, and the stator assembly 30 can be positioned in the rotational direction by inserting a pin or a protrusion protruding from the center shaft for positioning the mold in the radial direction into the insertion hole 18a. Made.
- the lead part 6 fixed to the mold and the lead wires (sensor lead wire 7 and power supply lead wire 8) of the stator assembly 30 are positioned on substantially the same straight line. Positioning on substantially the same straight line prevents the stator 10 from being set in the mold so as to be displaced in the rotational direction, thereby preventing the angle with the lead part 6 from being shifted, and the sensor lead wire 7 is pulled to form the substrate. It can suppress that a load is applied to 11 solder parts.
- the positioning portion 18 further serves as a rotation stopper when a force in the rotation direction is applied to the stator 10 by resin pressure during molding.
- the positioning portion 18 may be provided on the donut-shaped main body 1a of the lead wire wiring component 1, or may be provided by being connected to the main body 1a as shown in FIGS. In the case of being connected from the main body 1a, the positioning portion 18 is deformed by the resin pressure during the molding from the main body 1a to the positioning portion 18 of the lead wire wiring component 1, and the mold inner diameter side Can be prevented from being exposed, and the quality of the mold stator can be improved.
- the positioning portion 18 of the lead wire wiring component 1 is provided with a protrusion 18b having a predetermined height that is in contact with the end surface in the axial direction of the center shaft for positioning in the radial direction of the mold on the anti-connection side (stator side). (See FIG. 3).
- the protrusion 18b comes into contact with the axial end surface of the center shaft during molding, and positioning in the axial direction is performed.
- the positioning portion 18 can be prevented from being deformed by the resin pressure during molding and being exposed to the inner diameter portion of the mold, and quality can be improved.
- the positioning part 18 of the lead wire wiring component 1 is provided at a position facing the substrate holding part 15 by 180 °.
- the mold motor configured to include the stator assembly 30 according to the present embodiment is installed axially with respect to the outdoor unit of the air conditioner, the lower side is used to prevent flooding of the mold motor. Attach so that the lead-out part 6 comes.
- the positioning unit 18 is disposed on the upper side of the outdoor unit, when the water enters the mold motor, water from the surface that is in contact with the center shaft of the mold during molding is prevented. Can improve quality.
- the lead-out component 6 includes a protrusion extending from the circumferential end toward the lead wire wiring component 1 by a predetermined length in the circumferential direction.
- the projected area in the radial direction of the stator of the lead part 6 increases, and the radial molding pressure applied to the lead part 6 during molding is also increased.
- the wiring component is pressed in the radial direction with a force stronger than before, and as a result, the radial positioning can be performed by contacting the mold die.
- the lead-out component 6 includes a locking portion for holding two types of lead wire holding components, that is, two locking portions 26 a for holding the power supply lead wire holding component 4, and the sensor lead wire holding component 5. And two anchoring portions 26b for holding the motor.
- the two locking portions 26 a are provided near both ends in the radial direction of the lead part 6, and form openings that open toward the center of the lead part 6.
- the power supply lead wire holding component 4 is inserted and assembled from the center side of the lead-out component 6 toward the outside.
- the two retaining portions 26 b are provided near both ends in the radial direction of the lead part 6, and form an opening that opens toward the opposite side of the center of the lead part 6.
- the sensor lead wire holding component 5 is inserted and assembled toward the center of the lead component 6.
- the 14 includes a foot 41 and a rib 42 that are hung on the retaining portion 26a of the lead-out component 6, and a protrusion 41a is provided at the tip of the foot 41. As shown in FIG. The protrusion 41a contacts the retaining portion 26a, whereby the power supply lead wire holding component 4 is positioned in the axial direction. After the power supply lead wire 8 is wired to the lead-out component 6, the power supply lead wire holding component 4 is assembled with the foot 41 being latched to the latching portion 26 a of the lead-out component 6. When the power supply lead wire holding component 4 is locked to the lead-out component 6, the rib 42 contacts the lead-out component 6, whereby the power lead 8 is fixed to the lead-out component 6. By fixing the power supply lead 8, it is possible to prevent the power supply lead 8 from being displaced due to the pressure of the mold resin during molding.
- the sensor lead wire holding component 5 shown in FIG. 15 includes an L-shaped foot 51 that is hung on the locking portion 26b of the lead-out component 6. After the sensor lead wire 7 is wired to the lead part 6, the sensor lead wire holding part 5 is locked and assembled to the lock part 26 b of the lead part 6.
- the sensor lead wire 7 and the power supply lead wire 8 are routed on the respective surfaces of the lead wire wiring component 1. That is, the sensor lead wire 7 is routed on the surface on the side opposite to the stator of the lead wire wiring component 1 (the side shown in FIG. 2), and the power supply lead 8 is connected to the stator side of the lead wire wiring component 1 (FIG. 3). Route on the side indicated on the side. As a result, the assembly is facilitated, the cost for the assembly can be reduced, and the quality can be improved as the assembly is facilitated. In addition, since the power supply lead 8 is held by the protrusion 22a provided on the surface on the stator side to prevent axial displacement, the quality can be improved.
- the lead wire wiring component 1 has two types of locking portions 26 a and 26 b, the locking portion 26 a holds the power supply lead 8, and the locking portion 26 b holds the sensor lead wire 7. Therefore, it is possible to firmly assemble each lead wire to the lead wire wiring component 1, and the quality can be improved along with the improvement in reliability. Further, by using the foot 41 of the power supply lead wire holding component 4 for holding the sensor lead wire 7, the assembly can be facilitated and the cost can be reduced. In addition, the quality can be improved as the assembly becomes easier.
- the lead wire wiring component 1 in which the sensor lead wire 7 and the power supply lead wire 8 are wired in the above configuration is assembled to the stator 10 of the motor, and the stator protrudes from the mounting foot 13 of the lead wire wiring component 1.
- the stator assembly 30 in which the sensor lead wire 7 and the power supply lead wire 8 are assembled is obtained (FIG. 1). .
- the stator assembly 30 shown in FIG. 1 is molded with a thermosetting resin mold resin such as BMC (bulk molding compound)
- the mold stator 60 shown in FIG. 16 is obtained.
- the mold motor 70 shown in FIGS. 17 and 18 is obtained.
- a rotor shaft 72, a waterproof cap 71, and an E ring 73 are assembled to the mold stator 60 using a bracket 74.
- the waterproof cap 71 is for preventing water from entering between the shaft 72 and the bracket 74.
- Step 1 The stator core 82 is manufactured.
- the lead wire wiring assembly 40 and the lead wire wiring component 1 are manufactured.
- Step 2 Winding 84 is applied to the stator core 82.
- the power supply lead wire 8 of the lead wire wiring assembly 40 is wired to the lead wire wiring component 1.
- the core wire of the power supply lead wire 8 is routed to the core wire holding portion 24.
- the power supply lead wire holding component 4 is manufactured.
- Step 3 Assemble the power supply lead wire holding component 4 to the lead wire wiring component 1.
- the substrate 11 is manufactured.
- Step 4 The substrate 11 is assembled to the lead wire wiring component 1.
- Step 5 Assemble the sensor lead wire holding component 5 to the lead wire wiring component 1.
- Step 6 Assemble the lead wire wiring component 1 to the stator 10, heat-weld the pin 81 coming out from the mounting foot 13 of the lead wire wiring component 1, and the core wire of the terminal 12 of the stator 10 and the power supply lead wire 8 Spot welding.
- Step 7 The stator assembly 30 is molded to manufacture the mold stator 60. In addition, parts such as a rotor and a bracket 74 are manufactured.
- Step 8 A mold motor 70 is manufactured by assembling a rotor or the like to the mold stator 60.
- FIG. 20 shows an air conditioner 100 incorporating a molded electric motor 70 according to an embodiment of the present invention.
- the air conditioner 100 includes an indoor unit 200 and an outdoor unit 300 connected to the indoor unit 200.
- the indoor unit 200 and the outdoor unit 300 are provided with a molded electric motor 70 as a drive source for the blower.
- a plurality of mounting legs 61 (see FIG. 16) extending from the outer peripheral side of the mold stator 60 to the radially outer side are used.
- the mold motor 70 as a motor for a blower that is a main part of the air conditioner 100, the ingress of water into the stator of the motor for the blower is suppressed, and the air conditioner 100 with good quality at low cost. Can be obtained.
- the stator of the electric motor supplies electric power to the substrate 11 on which electronic components constituting the rotor position detection circuit are mounted and the winding 84 of the stator 10.
- a lead wire wiring component 1 on which the power supply lead wire 8 and the sensor lead wire 7 connected to the substrate 11 are wired, and a substrate holding portion 15 provided on the lead wire wiring component 1 to which the substrate 11 is assembled are provided.
- the substrate holding part 15 includes a housing contact part 16a against which the housing 80 is pressed when the stator assembly 30 is assembled. Thereby, the protrusion amount of the contact from the board
- the mold thickness can be designed without depending on the contact length.
- the stator of the electric motor according to the embodiment of the present invention shows an example of the contents of the present invention, and can be combined with another known technique, and departs from the gist of the present invention. Of course, it is possible to change and configure such as omitting a part within the range.
- the present invention is useful as an electric motor stator, electric motor, and air conditioner.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
図1は本発明の実施の形態に係る電動機の固定子組立を基板側から見た斜視図である。図2はリード線配線部品の斜視図である。図3は、図2に示されるリード線配線部品を反対面から見た斜視図である。図4はリード線配線部品が備えている基板保持部の一例を示す図である。図5はリード線配線部品が備えている基板保持部の一例を示す図である。図6はリード線配線部品が備えている基板保持部の一例を示す図である。図7はリード線配線部品が備えている基板保持部の一例を示す図である。図8は基板保持部およびその周辺の拡大図である。図9は基板保持部およびその周辺の拡大図である。図10はセンサ基板の斜視図である。図11は電源リード線が引回された状態のリード線配線部品の斜視図である。図12はリード線端末保持部の拡大図である。図13は口出し部品およびその周辺の拡大図である。図14は電源リード線保持部品の斜視図である。図15はセンサリード線保持部品の斜視図である。図16はモールド固定子の斜視図である。図17はモールド電動機の斜視図である。図18はモールド電動機の側面図である。図19はモールド電動機の製造工程を示す図である。図20はモールド電動機を内蔵した空気調和機の構成図である。
(1)ステップ1:固定子鉄心82を製造する。併せて、リード線配線組立40とリード線配線部品1とを製造する。
(2)ステップ2:固定子鉄心82に巻線84が施される。併せて、リード線配線部品1にリード線配線組立40の電源リード線8が配線される。このとき電源リード線8の芯線が芯線保持部24まで引回される。併せて、電源リード線保持部品4が製造される。
(3)ステップ3:リード線配線部品1に電源リード線保持部品4を組付ける。併せて、基板11を製造する。
(4)ステップ4:リード線配線部品1に基板11を組付ける。基板保持部15に組付けられた基板11とハウジング80のコンタクトが半田付けされる。併せて、センサリード線保持部品5を製造する。
(5)ステップ5:リード線配線部品1にセンサリード線保持部品5を組付ける。
(6)ステップ6:固定子10にリード線配線部品1を組付け、リード線配線部品1の取付け足13から出るピン81を熱溶着し、固定子10の端子12と電源リード線8の芯線をスポット溶接する。
(7)ステップ7:固定子組立30をモールド成形してモールド固定子60を製造する。併せて、回転子、ブラケット74等の部品を製造する。
(8)ステップ8:モールド固定子60に回転子などを組付けてモールド電動機70を製造する。
Claims (7)
- 回転子の位置検出回路が実装された基板と、
固定子の軸方向の一端に取付けられ、センサリード線を前記位置検出回路まで配線するリード線配線部品と、
前記センサリード線の端末に接続されたハウジングと、
を備え、
前記基板は前記リード線配線部品の第1面側に組付けられ、前記ハウジングは、前記基板が組付けられる位置と対向する、前記リード線配線部品の第2面側の位置に設置され、
前記リード線配線部品は、前記基板が組付けられる位置と前記ハウジングが設置される位置の間に設けられたハウジング当接部、を備える、
電動機の固定子。 - 前記ハウジング当接部は、前記基板が備えているコンタクトを挿入するためのコンタクト挿入部、を備える請求項1に記載の電動機の固定子。
- 前記基板を前記リード線配線部品に組付けるために設けられた基板保持部は、前記基板を組付ける際に前記基板が押し当てられる基板当接部、を備える請求項1または2に記載の電動機の固定子。
- 前記基板を前記リード線配線部品に組付けるために設けられた基板保持部は、前記基板を組付ける側の面に、前記基板と前記ハウジングの接触を防止するための空間部、を備える請求項1、2または3に記載の電動機の固定子。
- モールド樹脂に外郭が形成されている、請求項1から4のいずれか一つに記載の電動機の固定子。
- 請求項1から5のいずれか一つに記載の電動機の固定子を用いた電動機。
- 請求項6に記載の電動機を送風機用電動機として搭載した空気調和機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/301,171 US10008902B2 (en) | 2014-07-10 | 2015-07-07 | Stator for electric motor, electric motor, and air conditioner |
CN201580027340.6A CN106416010B (zh) | 2014-07-10 | 2015-07-07 | 电动机的定子、电动机以及空调机 |
JP2016532939A JP6184600B2 (ja) | 2014-07-10 | 2015-07-07 | 電動機の固定子、電動機および空気調和機 |
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PCT/JP2014/068426 WO2016006077A1 (ja) | 2014-07-10 | 2014-07-10 | 電動機の固定子、電動機および空気調和機 |
JPPCT/JP2014/068426 | 2014-07-10 |
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PCT/JP2014/068426 WO2016006077A1 (ja) | 2014-07-10 | 2014-07-10 | 電動機の固定子、電動機および空気調和機 |
PCT/JP2015/069489 WO2016006594A1 (ja) | 2014-07-10 | 2015-07-07 | 電動機の固定子、電動機および空気調和機 |
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US (1) | US10008902B2 (ja) |
JP (1) | JP6184600B2 (ja) |
CN (1) | CN106416010B (ja) |
WO (2) | WO2016006077A1 (ja) |
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WO2018051773A1 (ja) * | 2016-09-16 | 2018-03-22 | 日本電産株式会社 | モータ |
JPWO2019193631A1 (ja) * | 2018-04-02 | 2020-10-22 | 三菱電機株式会社 | エンコーダ、モータ及びエンコーダの組立方法 |
JP2021035194A (ja) * | 2019-08-26 | 2021-03-01 | 日本電産サンキョー株式会社 | 駆動装置及びヘッドアップディスプレイ装置 |
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JP6319848B2 (ja) * | 2015-02-25 | 2018-05-09 | マブチモーター株式会社 | モータ装置 |
CN105762970B (zh) * | 2016-03-31 | 2018-09-21 | 新誉轨道交通科技有限公司 | 引线防护装置 |
DE102019107520A1 (de) * | 2018-04-26 | 2019-10-31 | Hanon Systems | Vorrichtung zum Antreiben eines Verdichters und Verfahren zum Montieren der Vorrichtung |
JP7262253B2 (ja) * | 2019-03-13 | 2023-04-21 | 日本精機株式会社 | 電子部品モジュール、電子部品モジュールと筐体との取付構造及びこれを備えた制御装置 |
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CN106416010A (zh) | 2017-02-15 |
WO2016006077A1 (ja) | 2016-01-14 |
US20170025919A1 (en) | 2017-01-26 |
US10008902B2 (en) | 2018-06-26 |
CN106416010B (zh) | 2019-02-26 |
JPWO2016006594A1 (ja) | 2017-04-27 |
JP6184600B2 (ja) | 2017-08-23 |
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