JP4906807B2 - Motor stator, motor and air conditioner - Google Patents

Description

  The present invention relates to a stator for an electric motor. More specifically, the present invention relates to a lead-out component for wiring a lead wire connected to the outside of a motor of a stator of an electric motor to which a substrate on which a sensor circuit and a power supply circuit are mounted is assembled. The present invention also relates to a method for manufacturing the stator of the electric motor, and an electric motor and an air conditioner using the electric motor stator.

  Conventionally, in a stator of an electric motor in which a power supply lead wire is directly connected to a coil, in order to be able to easily mount a rotation detection sensor of the rotor at a low cost, a stator core and an insulating portion on the stator core are provided. A stator having a winding provided through the stator, a rotor embedded in the stator, a power supply lead wire for supplying power to the winding, and a stator provided to hold the power supply lead wire Power supply lead wire holding means, a substrate mounted with a rotation detection sensor to detect rotation of the rotor and connected to the sensor lead wire, a lead wire holding means for holding the sensor lead wire, and a partition part. The sensor lead wire is sandwiched between the lead wire pressing means and the partition part, and the power lead wire is sandwiched between the partition part and the power lead wire holding means and assembled in two stages in the axial direction. Stator motivation has been proposed (e.g., see Patent Document 1).

In addition, an electric motor to which a board on which electronic components are mounted is assembled in order to provide a stator for an electric motor that prevents moisture from reaching the board so that the board does not appear outside after molding of the stator. A stator insulating portion having a protrusion of the stator insulating portion that protrudes in the axial direction, and a protrusion that is assembled to the substrate and that extends in a direction perpendicular to the substrate in the state of being assembled to the substrate. And a board holding part that is fixed to the protrusion of the stator insulating portion together with the board, and when the stator of the electric motor is molded, the protrusion of the board holding part is pressed by a mold for molding. A stator for an electric motor is proposed (for example, see Patent Document 2).
JP 2001-178062 A JP 2007-228667 A

  When the lead wire wired to the board assembled to the insulation part of the stator is taken out to the core side by a predetermined distance from the board when the lead wire is taken away to the core side, if the lead wire passes the shortest distance, There is a problem that there is a possibility of contact with the edge of the.

  The present invention has been made in order to solve the above-described problems, and suppresses the contact of the power supply lead wire and the sensor lead wire with the edge of the stator iron core, thereby improving the quality of the stator and the electric motor. Another object of the present invention is to provide an air conditioner and a method for manufacturing a stator of an electric motor that can be efficiently manufactured.

The stator of the electric motor according to the present invention includes a stator core formed by laminating electromagnetic steel plates punched into a predetermined shape, an insulating portion applied to the stator core, and the insulating portion. A coil wound around the stator core, a first board-in type connector installed on the connection side of the insulation part, mounted on the connection side surface of the insulation part, and connected to a power supply lead; In the stator of the electric motor, including a board having a second board-in connector mounted on a surface opposite to the connection side of the insulating portion and connected to the sensor lead wire,
A lead wire lead-out component assembly for pulling out the power supply lead wire and the sensor lead wire to the outside;
The lead wire lead part assembly includes the following elements.
(1) In the vicinity of a U-shaped notch formed on the outer peripheral edge of the substrate, the substrate is sandwiched and assembled to the substrate, and comes into contact with the U-shaped notch, and is substantially at the center. A first rib formed with a U-shaped recess from which the power supply lead wire is drawn, and an outer side of the first rib and substantially parallel to the first rib, the lead wire wiring component A second rib that is disposed outside the outer peripheral side of the insulator when the assembly is assembled to the stator of the electric motor and from which the power supply lead drawn from the U-shaped recess is further drawn; A connecting portion extending in the axial direction in a state in which the lead wire wiring component assembly is assembled to the stator of the motor from both ends of the second rib, and an end of the connecting portion on the opposite side of the second rib Before extending outward in a direction substantially perpendicular to the connecting portion. A lead wiring component and a lead-out portion of the power leads,
(2) a lead wire partitioning part that is bent in the direction of the lead-out part at a right angle or more by the second rib and that is bent at a substantially right angle by the lead-out part between the lead wire wiring part and the lead wire partition part; ,
(3) The sensor lead wire that is superimposed on the power supply lead wire, bent in the direction of the lead-out portion at a substantially right angle by the second rib, and further bent at a substantially right angle by the lead wire partition component, Lead wire presser parts that are sandwiched between and.

  The stator of the electric motor according to the present invention can avoid the contact of the lead wire with the stator core and the connecting wire of the winding due to the above configuration, and a high-quality electric motor stator can be obtained.

Embodiment 1 FIG.
In the present embodiment, in a stator of an electric motor to which a substrate on which a sensor circuit and a power supply circuit are mounted is assembled, a lead wire (power supply lead wire, sensor lead wire) connected to the outside of the motor is wired to the substrate. Characterized by assembly of wire lead parts. By using the lead wire lead-out component assembly of the present embodiment, it is possible to avoid contact of the lead wire with the connecting wire of the stator winding (connecting the coils of each phase) and the edge of the stator core. it can.

  FIGS. 1 to 8 are diagrams showing the first embodiment. FIG. 1 is a perspective view showing a state in which a stator (reverse bend) 100 of an electric motor is bent backward and FIG. 2 is a perspective view of the stator 200 of the electric motor. 3 is a perspective view of the board / lead wire assembly 70, FIG. 4 is a perspective view of the stator assembly 300 of the electric motor, FIG. 5 is an exploded perspective view of the stator assembly 300 of the electric motor, and FIG. FIG. 7 is a perspective view of the electric motor 400, and FIG. 8 is a flowchart showing the manufacturing process of the electric motor 400.

  First, the configuration of the stator assembly 300 (FIG. 4) of the electric motor will be described. An electric motor stator (reverse bending) 100 (FIG. 1), an electric motor stator 200 (FIG. 2), and an electric motor stator assembly 300 (FIG. 4) are formed in this order.

  In FIG. 1, a stator (reverse bend) 100 of an electric motor is a fixing in which an electromagnetic steel sheet having a thickness of about 0.1 to 0.7 mm is punched into a predetermined shape in a band shape and laminated by caulking, welding, adhesion, or the like. A child iron core 1 is provided.

  Here, the stator core 1 has twelve teeth 1a. An insulating part 3 is applied to each tooth 1a. The insulating portion 3 is formed integrally with the stator core 1 using, for example, a thermoplastic resin such as PBT (polybutylene terephthalate).

  However, you may assemble | attach the teeth 1a after shaping | molding the insulation part 3. FIG. In that case, the insulating part 3 is divided into a connection side and an anti-connection side, and each is inserted from both ends in the axial direction of the tooth 1a to constitute the insulating part 3. The insulating part 3 is provided for each tooth 1a. Accordingly, twelve insulating parts 3 are provided here.

  The winding is a three-phase single Y connection. Therefore, a terminal 4 (a terminal to which power is supplied) to which the coil 2 of each phase (U phase, V phase, W phase) is connected and a neutral point terminal 5 are provided on the connection side of the insulating portion 3. It is assembled. There are three terminals 4 and one neutral point terminal 5.

  As shown in FIG. 1, it is bent in the opposite direction to the stator 200 of the electric motor after completion so that the opening between the teeth 1a becomes wide. In the completed stator 200 of the electric motor, the teeth 1a are inside, but the teeth 1a are outside by bending in the opposite direction. This is for facilitating winding of the coil 2 around the teeth 1a. And the coil 2 is wound around each teeth 1a to which the insulation part 3 was given. That is, it is a concentrated winding method in which the coil 2 is wound directly around the teeth 1a. The winding is a three-phase single Y connection.

  The terminal 4 is formed by bending a flat wire. The flat wire is made of copper and, for example, a tin-copper alloy is hot-plated. In one example, the flat wire has a thickness of 0.5 mm and a width of 1.0 mm.

  The terminal 4 is bent by approximately 90 ° with respect to an insertion portion (not shown) for inserting the terminal 4 into a square hole 3 a provided with a rectangular wire in the insulating portion 3. It is formed by bending approximately 180 ° at a predetermined position to form the folded portion 4a, and further bending approximately 90 ° so as to extend almost opposite to the insertion portion inserted into the insulating portion 3.

  The neutral point terminal 5 uses the same rectangular wire as the terminal 4. A flat wire is bent by approximately 90 ° with respect to an insertion portion (not shown) for inserting the neutral point terminal 5 into a square hole 3 a provided in the insulating portion 3. The first folded portion 5a is formed by bending approximately 180 ° at a predetermined position. Further, the second folded portion 5b is formed by bending approximately 180 ° toward the insertion portion at a position that is substantially symmetric with respect to the insertion portion to the insulating portion 3. An opening 5 c is provided between the tip (not shown) of the second folded portion 5 b and the insertion portion to the insulating portion 3.

  In addition, although the example which uses a flat wire for the terminal 4 and the neutral point terminal 5 was demonstrated, it may not be a flat wire but should just be a square wire.

  A routing projection 7 for the neutral point terminal 5 is provided on the connection side of the insulating portion 3 to which the neutral point terminal 5 is assembled.

  Furthermore, the insulating part 3 is provided with a protrusion 8 that holds the connecting wire of each phase at a predetermined position on the connection side, with the height from the axial end surface of the stator core 1 in a predetermined position.

  The coil 2 is applied in a state bent in the opposite direction to the stator 200 of the electric motor after completion. The coil 2 forms a 12-slot three-phase single Y-connection winding. A description of the procedure for applying a 12-slot three-phase single Y-connection winding will be omitted.

  As shown in the figure, after the winding process is completed, the stator core 1 is bent in a predetermined direction into a substantially donut shape, and the stator core butt portion 63 of the stator core 1 is welded. Fix it.

  At this time, the connecting wire of each phase is held at a predetermined position by the protrusion 8 provided on the outer peripheral side of the insulating portion 3, and the connecting wire of each phase is not in contact with each other, so that the quality can be improved.

  Since the stator core 1 has twelve teeth 1a, each phase (U phase, V phase, W phase) includes four coils 2 in the case of a three-phase winding (single Y connection).

  The end of the magnet wire constituting the coil 2 is joined to the terminal 4 by fusing or soldering. Then, the terminals 4 are bonded to a substrate (described later) on which a power supply wiring pattern is applied. Furthermore, a board | substrate and a power supply lead wire (after-mentioned) are joined by a board-in-type connector (after-mentioned), it connects with an external power supply and electric power is supplied to the coil 2 of each phase.

  Next, the configuration of the substrate / lead wire assembly 70 will be described with reference to FIGS.

  3 is a perspective view of the board / lead wire assembly 70, FIG. 4 is a perspective view of the stator assembly 300 of the electric motor, and FIG. 5 is an exploded perspective view of the stator assembly 300 of the electric motor.

The substrate / lead wire assembly 70 includes the following elements.
(1) Substrate 11 that is a double-sided non-through substrate that does not need to connect patterns on both sides by being divided into two parts, power supply lead 51 and sensor lead 52;
(2) The protrusion 42 is connected by the thin connection part 40a, and the end surface (axial direction) of the protrusion 42 serves as a mold pressing part when molding the stator assembly 300 of the electric motor;
(3) a lead wire 53 that is divided into a power supply lead wire 51 and a sensor lead wire 52;
(4) Lead wire lead part assembly 10 which is a lead part for wiring the lead wire 53 (power supply lead wire 51, sensor lead wire 52);
(5) Protective tube 62 that covers the lead wire 53 (power supply lead wire 51, sensor lead wire 52) that goes out from the lead wire lead-out component assembly 10;
(6) Power supply lead wire connector 51a connected to the terminal of the power supply lead wire 51;
(7) A sensor lead wire connector 52 a connected to the terminal of the sensor lead wire 52.

  The substrate pressing component 40 shown in FIGS. 3 to 5 is formed by molding a thermoplastic resin such as PBT (polybutylene terephthalate), and has a configuration in which the protrusions 42 are connected by a thin connecting portion 40a. In the example of FIG. 4, the board pressing component 40 includes nine protrusions 42.

  The end surface (axial direction) of the protrusion 42 serves as a mold pressing portion when the stator assembly 30 of the electric motor is molded.

  The substrate pressing component 40 includes three attachment holes 41 for the stator insulating portion into which the protrusion 3b of the insulating portion 3 is inserted.

  The board pressing component 40 includes two claws 45 that are engaged with the board 11 (FIG. 3). The claw 45 is locked to the outer peripheral edge of the substrate 11.

  In the example of FIG. 3, three power supply lead wire misalignment prevention protrusions 43 that pass through the substrate 11 and prevent the power lead lead 51 from being misaligned are provided.

  In the example of FIG. 3, three positioning protrusions 47 for assembling to the substrate 11 with high accuracy are provided. The positioning protrusion 47 engages with a notch portion (hidden by the claw 45) formed on the outer peripheral edge portion opposite to the outer peripheral edge portion of the substrate 11 to which the claw 45 is locked.

  By connecting the nine protrusions 42 with the thin-walled connecting portion 40a, the material cost can be minimized and the cost can be reduced.

  As shown in FIGS. 3 to 5, the substrate 11 has a substantially crescent shape, and a power supply wiring pattern is formed on the surface visible in FIGS. 4 and 5 (surface on the substrate pressing component 40 side). . Further, three terminal holes 61 into which the terminals of the first board-in type connector 66a (for the power supply lead wire 51) assembled on the opposite surface are inserted are provided. A portion where the first board-in type connector 66 a (for the power supply lead wire 51) and the terminal hole 61 are connected is referred to as a power supply lead wire joint portion 48.

  Further, three position detection sensors 67 (Hall ICs) for detecting the position of a rotor (not shown) are mounted on the back surface (the surface visible in FIG. 3), and a rotor magnet position detection circuit is mounted. Is formed. Further, sensor lead wire joint portions 49 (five places) to be joined with the second board-in type connector 66b (for the sensor lead wire 52) assembled on the opposite surface are provided.

  The lead wire 53 is divided into a power lead wire 51 and a sensor lead wire 52, and is assembled to a lead wire lead-out component assembly 10 that is exposed from the outer shell when the stator assembly 300 of the motor is molded. The power supply lead wire joint portion 48 (see FIG. 5) is disposed through the first board-in type connector 66a (for the power supply lead wire 51) and the second board-in type connector 66b (for the sensor lead wire 52). 5) and the sensor lead wire joint portion 49 (FIG. 3), and are soldered and joined to the substrate 11. Here, an example in which the first board-in type connector 66 a and the second board-in type connector 66 b are used is shown, but the lead wire 53 may be directly joined to the substrate 11.

  Since the lead wire 53 is divided into the power supply lead wire 51 and the sensor lead wire 52 and wired, it is not necessary to connect the patterns on both sides, so that a double-sided non-through substrate can be applied and the cost is reduced.

The lead wire lead part assembly 10 that is a lead part for wiring the lead wires 53 (the power supply lead wire 51 and the sensor lead wire 52) is composed of the following three parts (see FIG. 4).
(1) Lead wire wiring component 10a;
(2) Lead wire partitioning part 10b;
(3) Lead wire holding part 10c.

  The configuration of the lead wire wiring component 10a will be described with reference to FIG. The lead wire wiring component 10a for wiring the lead wire 53 is formed in a protrusion 71 (two pieces) that is locked to the surface on which the position detection sensor 67 of the substrate 11 is mounted, and a locking hole 54 (FIG. 4) provided in the substrate 11. The board 11 is sandwiched and assembled to the board 11 by the legs 72 (two pieces) inserted and locked.

  At this time, the surface on which the position detection sensor 67 of the substrate 11 is mounted is placed on the clamping surface 71 a of the protrusion 71.

  In the lead wire wiring component 10a for wiring the lead wire 53, when the lead wire wiring component 10a for wiring the lead wire 53 is assembled to the substrate 11, a U-shape formed on the outer peripheral edge of the substrate 11. The first rib 73 is provided so as to contact the notch 84 (FIG. 4) and connect (connect) the legs 72 (two).

  The side surface (flat end surface) of the substrate 11 with which the first rib 73 of the lead wire wiring component 10a abuts is a U-shaped notch 84 (FIG. 4) in which the first rib 73 is substantially contained in a plan view. Is formed.

  The first rib 73 of the lead wire wiring component 10a is formed with a U-shaped recess 73a at a substantially central portion. The distance between the bottom surface 73 a-1 of the U-shaped recess 73 a and the surface on which the position detection sensor 67 of the substrate 11 is mounted is made substantially equal to the wire diameter of the power supply lead 51. As a result, the power supply lead wire 51 drawn from the substrate 11 is wired to the position of the surface on which the position detection sensor 67 of the substrate 11 is mounted.

  Further, the three power supply lead wires 51 are guided from the first board-in type connector 66a by the power supply lead wire misalignment prevention protrusion 43 that prevents the power lead lead wire 51 from being misaligned. The first rib 73 is pulled out to the recess 73a, and the recess 73a is bent in a direction substantially perpendicular to the notch 84 of the substrate 11 (FIG. 3).

  At this time, one of the three power supply leads 51 arranged in parallel to the surface on which the position detection sensor 67 of the substrate 11 is mounted (the bending radius is the smallest among the three power supply leads 51) is a recess. Since the side wall (left) 73a-2 of 73a is bent as a fulcrum, wiring of the power supply lead wire 51 becomes easy and productivity is improved.

  Further, the lead wire wiring component 10 a includes a second rib 74 substantially parallel to the first rib 73 on the outside of the first rib 73 of the lead wire wiring component 10 a. The second rib 74 is disposed outside the outer peripheral side of the insulating portion 3 when the lead wire lead-out component assembly 10 is assembled to the stator 200 of the electric motor. And since the power supply lead wire 51 is pulled out from the surface which mounts the position detection sensor 67 of the board | substrate 11 to the 2nd rib 74, the connecting wire (not shown) of the stator 200 of an electric motor, and the edge of the stator core 1 In addition, it is possible to avoid contact with the power supply lead 51 and prevent breakage of the crossover wire and breakage of the coating of the power supply lead 51, so that the quality of the stator assembly 300 of the motor can be improved.

  In the second rib 74, two partition pins 74a are formed at a substantially central portion in accordance with a pitch at which the three power supply lead wires 51 are drawn. A groove 74b for accommodating one power supply lead 51 is formed between the two partition pins 74a and outside each partition pin 74a.

  Further, the lead wire wiring component 10a has two connecting portions 76 extending downward from both ends of the second rib 74 (in the axial direction in a state where the lead wire lead-out component assembly 10 is assembled to the stator 200 of the motor). Prepare.

  The ends of the two connecting portions 76 opposite to the second ribs 74 are substantially perpendicular to the two connecting portions 76 (the lead wire lead-out component assembly 10 is assembled to the stator 200 of the motor. The lead-out part 75 of the power supply lead wire 51 extending radially outward in the state is provided.

  In the lead portion 75, three grooves 75a for accommodating the three power supply lead wires 51 are formed.

  The three power lead wires 51 drawn out from the second rib 74 are bent by the second rib 74 toward the lead-out portion 75 at a right angle or more.

  Further, the three power supply lead wires 51 are further bent at a substantially right angle at the lead-out portion 75 (radially outward when the lead wire lead-out component assembly 10 is assembled to the stator 200 of the electric motor) and placed in the groove 75a. It is done.

  The three power supply lead wires 51 housed in the groove 75a are fixed by the lead wire partitioning part 10b. In the lead wire partitioning component 10 b, the claw 10 b-1 is engaged with the engagement hole 75 c of the lead portion 75, and the three power supply lead wires 51 are sandwiched between the lead portion 75.

  The sensor lead wire 52 pulled out from the second board-in connector 66b attached to the surface of the substrate 11 on which the substrate pressing component 40 is assembled is the first rib 73 and the second rib 74 of the lead wire wiring component 10a. It is pulled out so as to overlap the power supply lead 51.

  Similarly to the power supply lead wire 51, the sensor lead wire 52 is bent in the direction of the lead portion 75 at a substantially right angle by the second rib 74. Then, the sensor lead wire 52 is further bent at a substantially right angle (the lead wire lead-out component assembly 10 is radially outside when the lead wire lead-out component assembly 10 is assembled to the stator 200 of the motor) at the lead wire partition component 10b, and the lead wire partition component 10b. In the groove 10b-2 (FIG. 4).

  The sensor lead wire 52 housed in the groove 10b-2 of the lead wire partitioning part 10b is pressed by the lead wire holding part 10c. The protrusion 10c-1 (FIG. 4) of the lead wire holding component 10c engages with the engaging portion 75b of the lead-out portion 75 of the lead wire wiring component 10a, and the sensor lead wire 52 is connected to the lead wire partitioning component 10b and the lead wire holding component. 10c.

  As described above, the power supply lead wire 51 and the sensor lead wire 52 can be pulled out from the lead wire lead-out component assembly 10.

  The assembly of the board / lead wire assembly 70 with the stator 200 of the electric motor will be described. The substrate 11 is installed on the substrate installation surface 80a (FIG. 4) which is the axial end surface of the protrusion 80 formed on the outer diameter side of the insulation part 3 of the stator 200 of the electric motor (the side on which the terminal 4 is attached). Is done.

  The protrusion 3b that fits into the mounting hole 11a (FIG. 3) of the substrate 11 provided on the outer diameter side of the connecting portion of the insulating portion 3 of the stator 200 of the electric motor together with the mounting hole 11a provided in the substrate 11 of the substrate pressing component 40. Insert into the mounting hole 41. And the protrusion 3b which protrudes from the attachment hole 41 of the board | substrate holding | suppressing component 40 is heat-welded, and the stator 200 and the board | substrate 11 of an electric motor are assembled | attached. By soldering the terminals 4 protruding from the terminal holes 61 of the substrate 11, the coil 2 of the stator 200 of the motor and the substrate 11 are electrically joined.

  When the board / lead wire assembly 70 is assembled to the stator 200 of the electric motor, the core contact portion 78 of the lead wire wiring component 10 a contacts the outer peripheral surface of the stator core 1.

  Further, when the stator assembly 300 of the motor is molded by the mold resin, the projection 79 formed on the opposite side of the foot 72 of the lead wire wiring component 10a is the end surface of the projection 79, like the projection 42 of the board holding component 40. (Axial direction) is a mold pressing portion at the time of molding of the stator assembly 300 of the electric motor. Thereby, the floating at the time of molding of the substrate 11 in the vicinity of the lead wire lead-out component assembly 10 is suppressed.

  When the board / lead wire assembly 70 is assembled to the stator 200 of the electric motor, the power supply lead 51 is positioned on the surface on which the position detection sensor 67 of the board 11 is mounted. In other words, the first rib 73 of the lead wire wiring component 10a is formed with a U-shaped recess 73a substantially at the center. The distance between the bottom surface 73 a-1 of the U-shaped recess 73 a and the surface on which the position detection sensor 67 of the substrate 11 is mounted is made substantially equal to the wire diameter of the power supply lead 51. Thereby, the power supply lead wire 51 drawn out from the substrate 11 is positioned at the position of the surface on which the position detection sensor 67 of the substrate 11 is mounted. Further, by providing the second rib at the bending position of the power supply lead wire 51, it is possible to avoid contact of the power supply lead wire 51 with the connecting wire (not shown) of the stator 200 of the motor and the edge of the stator core 1. This makes it possible to prevent breakage of the jumper wires and breakage of the covering of the power supply lead wire 51, so that the quality of the stator assembly 300 of the motor can be improved.

  FIG. 7 shows the electric motor 400. The electric motor 400 includes a rotor 138, a bracket 139, a mold stator 140 obtained by molding the electric motor stator assembly 300, a connection component 141 (substrate 11), and the like.

  As shown in FIG. 7, a wiring component 141 connected to the outside is assembled to the stator assembly 300 of the electric motor according to the present embodiment, and after being mechanically and electrically joined, molding is performed. Thereafter, parts such as the rotor 138 and the bracket 139 are assembled to form the electric motor 400.

  By using the above-described high-quality and low-cost motor stator assembly 300, a high-quality and low-cost motor 400 can be obtained.

FIG. 8 shows a manufacturing process of the electric motor 400.
(1) Step 1: A stator core 1 in which electromagnetic steel sheets having a thickness of about 0.1 to 0.7 mm are punched into a strip shape and laminated by caulking, welding, bonding, or the like is manufactured. In parallel, the substrate 11 and the lead wires 53 (the power supply lead wire 51 and the sensor lead wire 52) are manufactured.
(2) Step 2: The stator 200 of the motor is manufactured by applying the coil 2 or the like to the stator core 1. At the same time, the lead wire 53 is soldered to the substrate 11. Further, the board holding component 40 is manufactured.
(3) Step 3: Assemble the board holding component 40 to the board 11. At the same time, the lead wire wiring component 10a is manufactured.
(4) Step 4: The lead wire wiring component 10a is assembled to the substrate 11, and the lead wire partitioning component 10b and the lead wire pressing component 10c are manufactured in parallel.
(5) Step 5: Assemble the lead wire partitioning part 10b and the lead wire holding part 10c to the lead wire wiring part 10a. At this time, the power supply lead wire 51 is sandwiched between the lead wire wiring component 10a and the lead wire partitioning component 10b. Further, the sensor lead wire 52 is sandwiched between the lead wire partitioning part 10b and the lead wire pressing part 10c.
(6) Step 6: The board 11 is assembled to the stator 200 of the electric motor, and the terminals 4 and the board 11 are soldered.
(7) Step 7: The stator assembly 300 of the electric motor is molded, and the rotor 138, the bracket 139, etc. are manufactured in parallel.
(8) Step 8: Assemble the electric motor 400.

  The electric motor 400 can be efficiently manufactured by assembling the electric motor 400 in the manufacturing process of FIG.

  Although the example using the stator core 1 obtained by punching and laminating electromagnetic steel sheets in a strip shape has been described, the present embodiment can be applied even to a stator in which electromagnetic steel sheets are punched in a round shape that does not need to be bent. is there.

Embodiment 2. FIG.
FIG. 9 is a diagram illustrating the second embodiment, and is a configuration diagram of the air conditioner 500.

  As shown in FIG. 9, the air conditioner 500 includes an indoor unit 242 and an outdoor unit 243 connected to the indoor unit 242. The outdoor unit 243 includes a blower 244. The indoor unit 242 also includes a blower (not shown).

  The quality of the air conditioner 500 can be improved by using the high-quality electric motor 400 of Embodiment 1 as the blower motor that is the main component of the air conditioner 500 for the indoor unit 242 and the outdoor unit 243.

FIG. 3 is a diagram showing the first embodiment, and is a perspective view showing a state in which a stator (reverse bending) 100 of the motor is reversely bent and wound. FIG. 5 shows the first embodiment, and is a perspective view of a stator 200 of the electric motor. FIG. 5 is a diagram showing the first embodiment, and is a perspective view of a substrate / lead wire assembly 70; FIG. 3 shows the first embodiment, and is a perspective view of a stator assembly 300 of the electric motor. FIG. 3 shows the first embodiment and is an exploded perspective view of the stator assembly 300 of the electric motor. FIG. 3 is a diagram showing the first embodiment, and is a perspective view of a lead wire wiring component 10a. FIG. 5 shows the first embodiment and is a perspective view of the electric motor 400. FIG. 5 shows the first embodiment and is a flowchart showing the manufacturing process of the electric motor 400. FIG. 5 shows the second embodiment and is a configuration diagram of an air conditioner 500. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Stator iron core, 1a teeth, 2 coils, 3 insulation part, 3a square hole, 3b protrusion, 4 terminal, 4a folding | returning part, 5 neutral point terminal, 5a 1st folding | returning part, 5b 2nd folding | turning part, 5c Opening, 7 Protruding protrusion, 8 protrusion, 10 Lead wire lead part assembly, 10a Lead wire wiring part, 10b Lead wire partitioning part, 10b-1 claw, 10b-2 groove, 10c Lead wire holding part, 10c-1 Projection , 11 Substrate, 11a Mounting hole, 40 Substrate holding part, 40a Thin connection part, 41 Mounting hole, 42 Protrusion, 43 Power supply lead wire misalignment prevention protrusion, 45 Claw, 47 Positioning protrusion, 48 Power supply lead wire joint part, 51 Power supply lead wire, 51a Power supply lead wire connector, 52 Sensor lead wire, 52a Sensor lead wire connector, 53 lead Wire, 61 terminal hole, 62 protective tube, 63 stator core butting portion, 64 welded portion, 66a first board-in type connector, 66b second board-in type connector, 67 position detection sensor, 70 substrate / lead wire assembly , 72 feet, 73 first rib, 73a recess, 73a-1 bottom surface, 73a-2 side wall (left), 74 second rib, 74a partition pin, 74b groove, 75 lead-out portion, 75a groove, 75b engagement portion , 75c engagement hole, 76 connecting portion, 78 core contact portion, 79 protrusion, 80 protrusion, 80a substrate mounting surface, 84 notch, 100 motor stator (reverse bending), 138 rotor, 139 bracket, 140 mold Stator, 141 connection parts, 200 Motor stator, 242 Indoor unit, 243 Outdoor unit, 244 Blower, 300 Fixed motor Child assembly, 400 motor, 500 air conditioner.

Claims (5)

A stator core formed by laminating electromagnetic steel sheets punched into a predetermined shape, an insulating portion applied to the stator core, and a coil wound around the stator core provided with the insulating portion And a first board-in type connector that is installed on the connection side of the insulation part, is mounted on the connection side surface of the insulation part, and is connected to a power supply lead wire, and on the opposite side of the connection side of the insulation part In a stator of an electric motor comprising a substrate mounted on a surface and having a second board-in connector to which a sensor lead wire is connected,
A lead wire lead-out component assembly for pulling out the power supply lead wire and the sensor lead wire to the outside;
The lead wire lead-out component assembly is composed of the following three components : (1) lead wire wiring component, (2) lead wire partitioning component, and (3) lead wire pressing component. Electric motor stator.
(1) In the vicinity of a U-shaped notch formed on the outer peripheral edge of the substrate, the substrate is sandwiched and assembled to the substrate, and comes into contact with the U-shaped notch, and is substantially at the center. A first rib formed with a U-shaped recess from which the power supply lead wire is drawn, and an outer side of the first rib and substantially parallel to the first rib, the lead wire wiring component A second rib that is disposed outside the outer peripheral side of the insulator when the assembly is assembled to the stator of the electric motor and from which the power supply lead drawn from the U-shaped recess is further drawn; A connecting portion extending in the axial direction in a state in which the lead wire wiring component assembly is assembled to the stator of the motor from both ends of the second rib, and an end of the connecting portion on the opposite side of the second rib Before extending outward in a direction substantially perpendicular to the connecting portion. Possess a lead-out portion of the power leads, piece configured lead wire section parts as (2) the said bent lead-out portion direction second than a right angle with the rib, a substantially right angle further by the lead-out portion It said bent power lead overlies the lead divider section parts for clamping between the lead wire part (3) the power leads, bent substantially perpendicular to the lead section direction by the second rib Further, a lead wire holding part for holding the sensor lead wire bent at a substantially right angle by the lead wire partition part with the partition part. One of the plurality of power supply lead wires arranged substantially parallel to the surface on which the first board-in type connector to which the power supply lead wire of the board is connected is mounted on the side wall (left) of the recess. motor stator of claim 1 Symbol mounting, characterized in that bent as a fulcrum. Said second rib, in accordance with the pitch of the plurality of power supply leads are drawn out, the electric motor according to claim 1 or 2 partition pin 7, characterized in that it is formed in a substantially central portion Stator. The mold stator that molding the stator of the electric motor according to any one of claims 1 to 3, a rotor, a motor, characterized by being configured by assembling components such as brackets. An air conditioner using the electric motor according to claim 4 as a blower.

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