JP2012200114A - Mold electric motor and blower equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size of a ventilation device and improve the installation workability in a mold electric motor used in the ventilation device or the like.SOLUTION: A mold electric motor has a structure where a flange part 15 is provided at an entire outer peripheral surface of a mold body 14 which integrally solidifies an insulator 9 electrically insulating a stator core 8, a protruding part 10 in which a terminal pin 13 is erected, and a winding wire 11. An external connector connection side 13b of the terminal pin 13 is exposed from the flange part 15 in the opposite direction of a rotor shaft 16a, and the flange part 15 is formed in a position spaced away from an opening side end surface 14a of the mold body 14. This structure reduces the size of a ventilation device and improves the installation workability.

Description

  The present invention relates to a mold motor used for, for example, a ventilation fan or an air conditioner, and a blower equipped with the mold motor.

  As shown in FIG. 5, the conventional ventilator has a main body case 110 having an air inlet 113 and an air outlet 114, a centrifugal fan 112 provided in the main body case 110, and the centrifugal fan 112. The rotor shaft 109a extending from the molded electric motor 101 fixed to the ceiling surface 111 is connected. The mold motor 101 mounted on such a ventilator has a configuration as shown in FIG. 6, for example.

  That is, the stator core 102 is provided with an insulator 103 that forms an insulating layer on the surface thereof, and a protruding portion 104 that protrudes in the outer peripheral direction on a part of the insulator 103 substantially on the same surface as the end surface of the stator core 102. Is provided. A terminal pin 107 is erected on the projecting portion 104, and a winding terminal 106 of a winding 105 wound via the insulator 103 is connected by tangling. Then, a bottomed substantially cylindrical mold body 108 is formed so as to integrally solidify the stator core 102, the insulator 103, the winding 105, and the winding terminal connection side 107 a of the terminal pin 107, and rotates into the inner space. A child 109 is inserted. At this time, the external connector connection side 107b of the terminal pin 107 is the same as the extending direction of the rotor shaft 109a. (For example, the following patent document 1).

  A power connection component (not shown) is mounted in advance on the external connector connection side 107b of the molded motor 101 having such a configuration, and then the shaft-side end surface 108a of the mold body 108 is fixed in contact with the ceiling surface 111.

JP-A-4-185253

  In recent years, a space for installing a ventilator is becoming narrower in the midst of the spread of highly airtight and highly insulated houses. Therefore, downsizing of such a ventilator is an issue.

  Further, in the above-described molded electric motor, it is necessary to first attach the power supply connection component when fixing to the ventilation device, and improvement in workability has been a problem.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a molded electric motor that can reduce the size of a ventilator and can simplify installation workability.

  In order to achieve this object, a molded motor according to the present invention includes a stator core stacked in a plurality of layers, an insulating layer formed on the surface of the stator core, and one end face in the stacking direction of the stator core. And an insulator extending on the outer peripheral side of the stator core on substantially the same plane, a winding wound through the insulator, and a winding extending vertically through the protrusion A stator having a plurality of terminal pins for binding the terminal portion, and a bottomed substantially cylindrical mold body in which the stator iron core, the insulator, the protruding portion, the winding, and the terminal pin are integrally solidified to provide an opening. And a rotatable rotor that is inserted into the inner space of the stator and held by a bracket, and has a flange portion that forms a surface perpendicular to the rotation axis on substantially the entire periphery of the outer peripheral surface. Install the terminal pin on the flange. The projecting portion on the side where the terminal portion of the winding of the winding is integrally solidified, and the opposite side of the terminal pin is exposed in the opposite direction to the rotor shaft extending from the bracket, and The position of the flange portion in the rotor axial direction does not coincide with the end surface on the opening side of the mold body, thereby achieving the intended purpose.

  As described above, the molded motor of the present invention includes a plurality of laminated stator cores, an insulating layer formed on the surface of the stator core, and substantially flush with one end face of the stator core in the lamination direction. In this configuration, an insulator that extends a projecting portion on the outer peripheral side of the stator core, a winding wound through the insulator, and a terminal portion of the winding that stands up through the projecting portion are entangled. A plurality of terminal pins, a stator having a bottomed substantially cylindrical mold body in which the stator iron core, the insulator, the protruding portion, the winding, and the terminal pins are integrally solidified to provide an opening, and the stator The mold body is provided with a flange portion that forms a surface orthogonal to the rotation axis on substantially the entire circumference of the outer peripheral surface. The terminal pin winding end The protruding portion on the bent side is solidified integrally, and the opposite side of the terminal pin is exposed in a direction opposite to the rotor shaft extending from the bracket, and the flange axial direction of the flange portion Therefore, the ventilation device can be downsized and the mounting workability can be simplified.

  That is, in the present invention, since the flange portion is located away from the end face on the opening side of the mold body, a part of the stator enters the inside of the ventilator, and the entire ventilator is downsized in the height direction. Is possible. Moreover, since the exposed terminal pin is located toward the outside of the ventilator, the degree of freedom of attachment of the power supply connection parts is increased, and workability is improved.

The schematic perspective view of the air blower using the mold motor by this invention Schematic sectional view of a blower using a molded motor according to the present invention Sectional drawing of one embodiment of the present invention The top view after winding winding of one embodiment of the present invention Schematic sectional view of a blower using a conventional mold motor Sectional view of a conventional mold motor

  An embodiment in which an embodiment of the present invention is applied to a ceiling-embedded ventilation fan will be described below with reference to the accompanying drawings.

  In FIG. 1, reference numeral 1 denotes a substantially rectangular parallelepiped main body case. As shown in FIG. 2, an air suction port 6 is integrally formed on the lower surface, and an air discharge port 3 is integrally formed on the outer peripheral surface by a synthetic resin.

  The ceiling surface 2 of the main body case 1 is formed of a metal plate, and a through hole is formed at the center thereof. It arrange | positions so that the flange part 15 of the mold motor 4 may contact | abut on this ceiling surface 2, and it is fixed using the attachment hole 15a. A centrifugal fan 5 is provided in the main body case 1, and a lower end of the rotor shaft 16a of the molded electric motor 4 is passed through the central shaft portion thereof. The centrifugal fan 5 is attached to the portion in a substantially fixed state (including detachable as necessary).

  Here, the mold motor 4 will be described in detail. As shown in FIGS. 3 and 4, in the molded motor 4, an insulator 9 is mounted on a stator core 8 that is stacked in plural so as to insulate the surface thereof. The insulator 9 has a protruding portion 10 formed on substantially the same plane as the laminated end surface of the stator core 8. The projecting portion 10 has a certain thickness in the stacking direction of the stator core 8, and is a terminal for connecting the winding terminal portion 12 that is the start and end of the winding 11 wound through the insulator 9. A pin 13 is provided so as to penetrate therethrough. A molded body 14 is formed so as to integrally solidify the stator core 8, the insulator 9, the protruding portion 10, the winding 11, and the terminal pin 13, thereby constituting the stator 7. The mold body 14 has a cylindrical shape with a bottom provided with an opening 14 b on one side, and a rotor 16 that is rotatable through a bearing 18 is inserted from the opening 14 b and held by a bracket 17. It is fixed.

  Next, the flange part 15 provided in the mold body 14 will be described. The flange portion 15 is provided with a certain thickness on the entire circumference of the outer peripheral portion of the cylindrical mold body 14, and the one side surface of the protruding portion 10 extending to the insulator 9 is integrated. This one-side surface is a surface on which the winding terminal portion connection side 13 a entangled and connected to the winding terminal portion 12 among the terminal pins 13 erected on the protruding portion 10 is located. At this time, the other external connector connection side 13b of the terminal pin 13 is exposed to the outside, and the direction thereof is configured to be opposite to the rotor shaft 16a extending from the bracket 17.

  By attaching the molded electric motor 4 having such a configuration so that the flange portion 15 contacts the ceiling surface 2 of the ceiling-embedded ventilation fan, the external connector connection side 13b of the terminal pin 13 faces upward from the ceiling surface 2. Thus, it becomes easy to attach a power connection component (not shown), and the assembly workability is improved.

  Further, as shown in FIG. 3, the flange portion 15 is formed on the outer peripheral surface of the mold body 14 at a position away from the opening side end surface 14 a.

  The mold motor 4 having such a configuration is attached so that the flange portion 15 is in contact with the ceiling surface 2 of the ceiling-embedded ventilation fan. As a result, the overall height of the ceiling-embedded ventilation fan is kept low, and downsizing can be realized.

  As described above, the molded motor of the present invention includes a plurality of laminated stator cores, an insulating layer formed on the surface of the stator core, and substantially flush with one end face of the stator core in the lamination direction. In this configuration, an insulator that extends a projecting portion on the outer peripheral side of the stator core, a winding wound through the insulator, and a terminal portion of the winding that stands up through the projecting portion are entangled. A plurality of terminal pins, a stator having a bottomed substantially cylindrical mold body in which the stator iron core, the insulator, the protruding portion, the winding, and the terminal pins are integrally solidified to provide an opening, and the stator The mold body is provided with a flange portion that forms a surface orthogonal to the rotation axis on substantially the entire circumference of the outer peripheral surface. The terminal pin winding end The protruding portion on the bent side is solidified integrally, and the opposite side of the terminal pin is exposed in a direction opposite to the rotor shaft extending from the bracket, and the flange axial direction of the flange portion Therefore, the ventilation device can be downsized and the mounting workability can be simplified.

  That is, in the present invention, since the flange portion is at a position away from the end surface on the opening side of the mold body, a part of the stator becomes a shape that enters the inside of the ventilator, and the overall size of the ventilator is reduced in size. It becomes possible. Moreover, since the exposed terminal pin is located outside the ventilator, the degree of freedom of attachment of the power supply connection parts is expanded, and workability is improved.

  Therefore, it will be widely used for various electric devices such as a blower using an electric motor, or a generator.

DESCRIPTION OF SYMBOLS 1 ... Main body case 2 ... Ceiling surface 3 ... Air exhaust port 4 ... Mold electric motor 5 ... Centrifugal fan 6 ... Air inlet 7 ... Stator 8 ... Fixed Core child 9 ... Insulator 10 ... Protruding part 11 ... Winding 12 ... Winding terminal part 13 ... Terminal pin 13a ... Winding terminal part connection side 13b ... External connector connection Side 14 ... Mold body 14a ... Opening side end face 14b ... Opening 15 ... Flange 15a ... Mounting hole 16 ... Rotor 16a ... Rotor shaft 17 ... Bracket 18 ... Bearing

Claims (4)

A plurality of laminated stator cores,
An insulator that forms an insulating layer on the surface of the stator core and extends a protrusion on the outer peripheral side of the stator core on substantially the same plane as one end face in the stacking direction of the stator core;
A winding wound through this insulator;
A plurality of terminal pins that entangle the terminal portions of the windings standing through the projecting portions;
A stator having a bottomed substantially cylindrical mold body in which the stator core, the insulator, the protrusion, the winding, and the terminal pin are integrally solidified to provide an opening;
It consists of a rotor that is inserted into the inner space of this stator, held by a bracket, and is rotatable.
The mold body is provided with a flange portion that forms a surface orthogonal to the rotation axis on substantially the entire circumference of the outer peripheral surface,
Solidify the protruding part on the side where the terminal part of the winding of the terminal pin is entangled with the flange part,
And the mold electric motor of the structure which the other side of the said terminal pin exposes toward the opposite direction to the rotor axis | shaft extended from a bracket. 2. The mold motor according to claim 1, wherein a surface of the flange portion in a rotor axial direction is provided on the stator side with respect to an end surface on the opening side of the mold body. A blower equipped with the molded electric motor according to claim 1. The blower contains an impeller in a rectangular parallelepiped main body case,
Fitting the opening side of the mold body to the opening provided in the main body case,
The blower according to claim 3, wherein the flange portion is in contact with the main body case.

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