JP4607911B2 - Motor stator, motor and air conditioner - Google Patents

Description

  The present invention relates to a stator of an electric motor and the like, and more particularly, to a structure of a lead wire lead-out component that sandwiches a lead wire in a stator of a molded motor that is assembled with a substrate and is connected to the outside via a lead wire. Is.

In order to obtain a stator of a resin-molded electric motor that can lessen the problem of cracking and soldering of a printed wiring board, a stator core composed of a stack of a plurality of ring-shaped cores having grooves on the outer periphery, and A winding wound around the stator core, and a printed wiring board disposed in the stacking direction of the stator core for electrically connecting the winding to the lead wire, and these A standard that is used as a reference when embedding a resin mold in a stator core before molding in a stator of a resin mold motor that molds with insulation resin leaving the soldered surface of the printed wiring board lead wire around the outside There has been proposed a stator core of a resin mold electric motor in which a reference surface abutting on the surface is constituted by an iron core on the side close to the printed wiring board (see, for example, Patent Document 1).
JP-A-11-225453

  However, in a resin mold motor stator that is assembled to the stator and connected to the outside via the lead wire, the lead wire is held at a predetermined position during the soldering process for joining the lead wire to the substrate. However, there is a problem that the cost is high.

  The present invention has been made in order to solve the above-described problems. An electric motor stator that can simplify processing, improve manufacturing quality, and reduce processing costs, an electric motor using the same, and an electric motor using the same It is an object of the present invention to provide a method for manufacturing an air conditioner and an electric motor.

  The stator of the electric motor according to the present invention is a stator of an electric motor in which a lead wire extends from a lead wire lead-out component assembled on a substrate, and the lead wire is connected to the outside, and is caulked to one end portion of the lead wire. An L-shaped terminal to be soldered to the substrate, a first lead-out component in which a housing for housing the L-shaped terminal is formed, and a second lead-out with the lead wire sandwiched and fixed together with the first lead-out component And a lead wire lead part is constructed by assembling the first lead part and the second lead part.

  The stator of the electric motor according to the present invention can simplify processing, improve manufacturing quality, and reduce processing costs.

Embodiment 1 FIG.
1A and 1B are diagrams showing the configuration of a lead wire lead part 50 of an electric motor according to Embodiment 1, wherein FIG. 1A is a plan view of the first lead part 1 and FIG. 1B is a plan view of a second lead part 2. (C) is a side view of the 2nd lead-out component 2, (d) is a figure which shows the assembly procedure of the lead wire lead-out component 50, (e) is the lead wire lead-out component 50 which completed the assembly by pinching the lead wire 3. FIG.

  In FIG. 1, the lead wire lead part 50 is composed of a first lead part 1 and a second lead part 2. The first lead part 1 constituting the lead wire lead part 50 is molded using a thermoplastic resin such as PBT (polybutylene terephthalate). The first lead-out component 1 has a housing 40 (a portion surrounded by a one-dot chain line in FIG. 1A, FIG. 1D) in which an L-shaped terminal 15 (board-in terminal) caulked to the core wire of the lead wire 3 terminal is housed. Are filled in).

  The L-shaped terminal 15 is caulked to the core wire of the lead wire 3 terminal and is housed in the housing 40 of the first lead-out component 1. At this time, the board joint portion 17 (see FIG. 1D) of the L-shaped terminal 15 is the housing. It is inserted into the 40 substrate joint insertion holes 14. In addition, the lead wire 3 is housed and assembled between lead wire misalignment prevention protrusions 11 formed on the lead wire pressing portion 1a.

  The lead wire misalignment prevention protrusion 11 is assembled with the first lead-out component 1 and the second lead-out component 2, and the lead wire pressing portion 1 a of the first lead-out component 1 and the lead of the second lead-out component 2. It becomes a fulcrum when the lead wire 3 is pulled by an external force after being pressed by the wire pressing portion 2a. The lead wire 3 is prevented from coming off from the pressing portion (the lead wire pressing portion 1a and the lead wire pressing portion 2a) as compared with the case where there is no lead wire misalignment prevention protrusion 11, and the manufacturing quality is improved.

  Since the L-shaped terminal 15 is moved and fixed to a predetermined position in the housing 40, the substrate bonding portion insertion hole 14 can move the substrate bonding portion 17 of the L-shaped terminal 15 by a predetermined amount (FIG. 1A). It moves from right to left).

  After the L-shaped terminal 15 is assembled to the first lead-out component 1, the second lead-out component 2 is assembled to the first lead-out component 1 and the L-shaped terminal 15 and the lead wire 3 are fixed. When the first lead-out component 1 is assembled to the second lead-out component 2, the insertion portion 10 formed in the second lead-out component 2 extends along the fitting portion 9 formed in the first lead-out component 1. It is pushed in. Thereby, fitting and vertical displacement are prevented.

  The hook retainer 12 included in the second lead-out component 2 pushes the L-shaped terminal 15 to a predetermined position in the housing 40 via the hook 16 of the L-shaped terminal 15. Further, the lead wire 3 is sandwiched between the lead wire pressing portion 1a of the first lead-out component 1 and the lead wire pressing portion 2a of the second lead-out component 2, and the lead wire 3 is fixed.

  Regarding the fixing of the first lead-out component 1 and the second lead-out component 2, first claws 4 formed on both side surfaces of the first lead-out component 1 are formed in the second lead-out component 2. The first claw 4 is locked and strung across the locking portion 8. In the insertion direction of the second lead-out component 2 to the first lead-out component 1, the first claw 4 and the locking portion 8 of the first claw 4 are fixed. Further, in the direction perpendicular to the insertion direction, the first claw 4 is fixed by the portion of the first claw 4 straddling the locking portion 8 of the first claw 4 and the locking portion 8 of the first claw 4. Yes.

  Further, the second claw 5 included in the second lead-out component 2 is connected to the retaining portion 7 of the second claw 5 formed in the gap between the housings 40 in which the L-shaped terminals 15 of the first lead-out component 1 are accommodated. Locked and fixed. The bulge caused by the warp or the like in the vertical direction with respect to the insertion direction of the second lead part 2 of the hook press part 12 included in the second lead part 2 is suppressed as much as possible by making a fulcrum by the second claw 5. Moreover, since it becomes possible to resist deformation due to an external force or the like in the direction opposite to the insertion direction of the second lead-out component 2 applied to the second lead-out component 2, the first lead-out component of the L-shaped terminal 15 1, the hook 16 of the L-shaped terminal 15 functions so as not to be disengaged from the hook pressing portion 12 of the second lead-out component 2.

  In this way, the first lead part 1 and the second lead part 2 are firmly assembled, and the L-shaped terminal 15 is accurate, and the first lead part 1 and the second lead part 2 are accurate. As a result, the product quality can be improved.

  In the first lead part 1, third claws 6 for attaching the first lead part 1 to a substrate 18 described later are formed on both side surfaces.

  FIG. 2 is a perspective view of stator 200 of the electric motor in the first embodiment. The lead wire lead-out component 50 in which the lead wire 3 is assembled and integrated is assembled to the substrate 18 on which the electronic component is mounted. As shown in FIG. 2, the notch portion 19 into which the integrated lead wire lead-out component 50 enters the substrate 18 and the insertion hole of the third claw 6 into which the third claw 6 included in the first lead-out component 1 enters. 30 and a board joint insertion hole 31 into which the board joint 17 of the L-shaped terminal 15 enters. The third claw 6 may be provided in the second lead part 2.

  When the integrated lead wire lead-out component 50 is assembled to the substrate 18, both side surfaces of the first claw 4 included in the second lead-out component 2 are fitted into the cutout portions 19 of the substrate 18. It is possible to assemble the substrate 18 with high accuracy and to prevent the position of the lead wire lead-out component 50 with respect to the substrate 18. The first claw 4 may be provided on the second lead part 2.

  Moreover, the board | substrate pressing part 13 formed in the lower part of the latching | locking part 8 of the 1st nail | claw 4 with which the 2nd extraction component 2 is provided is equipped with the 3rd nail | claw 6 with which the 1st extraction part 1 is provided with the board | substrate 18. FIG. By pressing from the direction opposite to the direction of insertion into the insertion hole 30 of the third claw 6, the third claw 6 of the first lead-out component 1 is engaged with the board 18, thereby leading the lead wire to the board 18. The component 50 is assembled. The substrate pressing portion 13 may be provided in the first lead component 1.

  When the lead wire lead-out component 50 is assembled to the substrate 18, the L-shaped terminal 15 is also assembled to the substrate 18 at the same time. Therefore, the manufacturing process is simplified and the processing cost required for positioning the lead wire 3 on the substrate 18 is reduced. Reduction can be achieved.

  And the board | substrate 18 and the lead wire 3 are electrically joined by soldering the board | substrate junction part 17 of the L-shaped terminal 15 which protrudes from the board | substrate 18. FIG. At this time, not only the spring force to the board joint insertion hole 31 of the board joint 17 of the L-shaped terminal 15 but also the lead wire lead-out component 50 is assembled to the board 18 so that the positioning is strong. Therefore, it is effective in improving the quality in manufacturing.

  As described above, the function as the lead wire lead-out component 50 is divided into the first lead-out component 1 and the second lead-out component 2, but the effect is the same even if the method of dividing the function is changed. Needless to say, this is applicable.

  Furthermore, the board 18 on which the lead wire lead-out component 50 is assembled is assembled to the stator 100 to form a stator 200 for the electric motor. As shown in FIG. 2, the chamfered rectangular column 32 of the insulating portion 21 formed in the stator core 20 is inserted into the rectangular column insertion hole 33 provided in the substrate 18, thereby positioning in the rotational direction and insulating. The position in the axial direction is determined by installing the substrate 18 on the installation surface of the substrate 18 of the portion 21.

  Also, the prisms 32 protruding from the substrate 18 are thermally welded to fix the substrate 18 and the stator 100, and the portions protruding from the substrate 18 of the terminals included in the stator 100 are also soldered electrically. Be joined.

  FIG. 3 is a side view in which a part of an electric motor 300 on which the stator 200 of the electric motor shown in FIG. 2 is mounted is broken. As shown in FIG. 3, the stator 200 of the motor of FIG. 2 is molded using resin to form a molded stator 35, and a rotor 34 having a permanent magnet, a bearing, a shaft, etc., a bracket 36, and the like are assembled. 300.

  By using the above-described high-quality motor stator 200 (FIG. 2) for the electric motor 300, the high-quality electric motor 300 can be obtained. Moreover, since the stator 200 of the electric motor with simplified processing steps is used, the low-cost electric motor 300 can be obtained.

FIG. 4 shows a manufacturing process of electric motor 300 in the first embodiment.
(Step 1) The first lead part 1 is molded. In parallel, the harness processing of the lead wire 3 is performed.
(Step 2) The lead wire 3 is assembled to the first lead part 1. In parallel, the second lead-out component 2 is molded.
(Step 3) The second lead part 2 is assembled to the first lead part 1 to which the lead wire 3 is assembled, and the assembly of the lead line lead part 50 is completed. In parallel, the substrate 18 is manufactured by mounting electronic components and the like.
(Step 4) The lead wire lead-out component 50 is assembled to the substrate 18, and the substrate joint 17 of the lead wire 3 is soldered. In parallel, the stator 100 is manufactured.
(Step 5) The board 18 with the lead wires 3 is assembled to the stator 100 and soldered to the terminals of the stator 100, thereby completing the stator 200 of the electric motor.
(Step 6) The stator 200 of the electric motor is molded using resin to form a mold stator 35. In parallel, the rotor 34 and other parts are manufactured.
(Step 7) The electric motor 300 is completed by combining the mold stator 35, the rotor 34, the bracket 36, and the like.

  The motor 300 can be efficiently manufactured by manufacturing the motor 300 in the manufacturing process shown in FIG.

  As described above, in the first embodiment, the lead wire lead-out component 50 is provided on the substrate 18 by caulking the L-shaped terminal 15 to the lead wire 3 terminal and providing the lead wire lead-out component 50 with the housing 40 of the L-shaped terminal 15. When assembled, the L-shaped terminal 15 is held at a predetermined position, so that the machining quality can be improved. In addition, the cost of parts can be reduced by not using a predetermined housing, and the processing cost can be reduced because all the lead wires 3 are positioned by assembling the lead wire lead-out parts 50.

Embodiment 2. FIG.
FIG. 5 is a configuration diagram of the air conditioner 400 according to the second embodiment. In FIG. 5, the air conditioner 400 includes an indoor unit 46 and an outdoor unit 47. The indoor unit 46 is connected to the outdoor unit 47, and the outdoor unit 47 includes a blower 48 that is driven by the electric motor 300 shown in the first embodiment. Although not shown, the indoor unit 46 also has a blower driven by the electric motor 300 shown in the first embodiment. The quality of the air conditioner 400 can be improved by using the high-quality motor 300 as a blower motor that is a main part of the air conditioner 400.

It is a figure which shows the structure of the lead wire extraction component 50 of the electric motor in Embodiment 1, (a) is a top view of the 1st extraction component 1, (b) is a top view of the 2nd extraction component 2, (c) ) Is a side view of the second lead-out component 2, (d) is a diagram showing an assembly procedure of the lead-wire lead-out component 50, and (e) is a side view of the lead-wire lead-out component 50 that has been assembled with the lead wire 3 being sandwiched. It is. 1 is a perspective view of a stator 200 for an electric motor in Embodiment 1. FIG. It is the side view which fractured | ruptured a part of the electric motor 300 carrying the stator 200 of the electric motor shown in FIG. It is a figure which shows the manufacturing process of the electric motor 300 in Embodiment 1. FIG. It is a block diagram of the air conditioner 400 in Embodiment 2. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 1st lead part, 1a Lead wire holding part, 2nd lead part, 2a Lead wire holding part, 3 lead wire, 4 1st nail, 5 2nd nail, 6 3rd nail, 7 1st Locking portion of 2 claw 5, 8 Locking portion of first claw 4, 9 fitting portion, 10 insertion portion, 11 lead wire misalignment prevention protrusion, 12 hook holding portion, 13 substrate holding portion, 14 substrate bonding Part insertion hole, 15 L-shaped terminal, 16 hook, 17 board joint part, 18 board, 19 notch part, 20 stator core, 21 insulation part, 30 third claw 6 insertion hole, 31 board joint part insertion hole , 40 Housing, 46 Indoor unit, 47 Outdoor unit, 48 Blower, 50 Lead wire lead part, 100 Stator, 200 Motor stator, 300 Motor, 400 Air conditioner.

Claims (9)

In the stator of the electric motor where the lead wire extends from the lead wire lead-out component assembled on the board and the lead wire is connected to the outside,
An L-shaped terminal that is caulked to one end of the lead wire and soldered to the substrate, and has a substrate joint ;
A first lead part formed with a housing for accommodating the L-shaped terminal;
A board joint insertion hole having a square hole shape that is provided in the housing and into which the board joint of the L-shaped terminal is inserted, and the board joint of the L-shaped terminal allows a predetermined amount of movement;
A second lead part that sandwiches and fixes the lead wire together with the first lead part, and the lead lead part is configured by assembling the first lead part and the second lead part. A stator for an electric motor.   The stator of an electric motor according to claim 1, wherein the second lead-out component presses the lead wire against the first lead-out component from the side opposite to the board.   The L-shaped terminal has a hook, and the second lead-out part has a hook holding part. When the first lead-out part and the second lead-out part are assembled, the second lead-out part 2. The stator of an electric motor according to claim 1, wherein the hook pressing portion pushes the L-shaped terminal to a predetermined position in the housing through the hook of the L-shaped terminal.   The said 1st extraction part is equipped with the 1st nail | claw latched when both sides | surfaces are assembled | attached to this 1st extraction part. Electric motor stator.   The second lead-out component has a second claw, and the first lead-out component has a locking portion formed in a gap between the housings, and the second claw is related to the locking portion. The stator of the electric motor according to claim 1, wherein the second lead-out part is fixed to the first lead-out part by being stopped.   When the lead wire lead-out component holding the L-shaped terminal with the lead wire crimped is assembled to the substrate, the lead wire lead-out component is locked to the insertion hole of the substrate. The stator of the electric motor according to claim 1, further comprising a substrate pressing portion that presses a surface of the substrate opposite to the side on which the third claw is inserted.   When the lead wire having the L-shaped terminal is held by the lead wire lead-out component and assembled to the substrate, notches are provided to prevent both side surfaces of the lead wire lead-out component from entering the substrate and misalignment. The stator of the electric motor according to claim 1, wherein the stator is provided.   An electric motor using the stator of the electric motor according to any one of claims 1 to 7.   An air conditioner comprising the electric motor according to claim 8 mounted on a blower.

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