Molded motor

A motor and molding technology, applied in the direction of casing/housing/support, electrical components, electromechanical devices, etc., can solve problems such as thermal degradation of molding resins

Pending Publication Date: 2021-01-01
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the molding resin covering the coil is thermally degraded.

Method used

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  • Molded motor
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0048] First, use Figure 1 ~ Figure 4 The overall structure of the molded motor 1 according to Embodiment 1 will be described. figure 1 It is a perspective view of the molded motor 1 of Embodiment 1. figure 2 is an exploded perspective view of the molded motor 1 . image 3 is a sectional view of the molded motor 1 . Figure 4 is the molded motor 1 in image 3 Sectional view at line IV-IV. In addition, in Figure 2 ~ Figure 4 Here, the direction in which the rotating shaft 21 of the rotor 20 extends is defined as an axial direction X, and on a plane perpendicular to the axial direction X, the direction extending from the axis C around the axis C of the rotating shaft 21 is defined as The radial direction is defined as Y, and the direction surrounding the axis C around the axis C is defined as a circumferential direction Z. In addition, in Figure 4 In FIG. 2 , hatching is omitted for the sake of convenience for the core portion of the stator core 11 and the core porti...

Embodiment approach 2

[0100] Next, use Figure 12 and Figure 13 The molded motor 2 of the second embodiment will be described. Figure 12 It is a figure showing the structure of the lead wire bushing 40B used for the molded motor 2 of Embodiment 2, Figure 12 (a) is the main view, Figure 12 (b) is a side view, Figure 12 (c) is a plan view. In addition, in Figure 12 In , hatching is also given to the metal member 41 for the sake of convenience. In addition, in Figure 12 In (b), the figure shows Figure 12 The cross-section of the metal member 41 at the B-B line of (a), in Figure 12 In (c), the figure shows Figure 12 The section of the metal member 41 at line C-C of (b). in addition, Figure 13 It is an enlarged cross-sectional view of a main part of the molded motor 2 according to the second embodiment.

[0101] In the above-mentioned molded motor 1 of Embodiment 1, the metal member 41 included in the lead wire bushing 40 is composed of a single metal plate, but as Figure 12 and...

Embodiment approach 3

[0110] Next, use Figure 15 ~ Figure 17 The molded motor 3 of the third embodiment will be described. Figure 15 It is a sectional view showing the peripheral structures of the molded resin 30 and the lead bushing 40C of the molded motor 3 according to the third embodiment. Figure 16 is a perspective view of a metal member 41C included in a lead bushing 40C used in the molded motor 3, Figure 17 It is a plan view of this metal member 41C.

[0111] like Figure 15 As shown, in the molded motor 3 of the present embodiment, the lead wire bushing 40C is a connector type, and has a protruding portion 41c protruding outward from the side wall portion of the molded resin 30 . The through hole 40 a formed in the lead bush 40C of this embodiment is a fine hole for immobilizing the electric wire 90 . In the present embodiment, three electric wires 90 are inserted through the lead bush 40C, so three through-holes 40 a are provided. The electric wires 90 are inserted into the respec...

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PUM

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Abstract

A molded motor (1) comprising: a stator (10) having a stator core (11), and a coil (12) wound on the stator core (11) with an insulator (13) interposed therebetween; a rotor (20) disposed facing the stator (10), the rotor (20) having a rotor core (22) and a rotating shaft (21); a molded resin (30) that has a first opening (30a) and covers the stator (10); and a lead bush (40) attached to the firstopening (30a), the lead bush (40) having formed therein an insertion hole (40a) for drawing out an electrical wire (90) to the exterior; the lead bush (40) having a metal member (41) in which there is formed a second opening (41a) for drawing out the electrical wire (90) to the exterior, the second opening (41a) being smaller than the first opening (30a) and larger than the insertion opening (40a).

Description

technical field [0001] The present disclosure relates to a molded motor. Background technique [0002] Conventionally, there is known a molded motor in which a stator is covered with molded resin (Patent Document 1). For example, a molded motor includes a stator, a rotor disposed inside the stator, a molding resin covering the stator, and a printed circuit board connected to coils included in the stator. In the molded motor, a plurality of lead wires connected to the printed circuit board are led out to the outside of the motor through a lead wire bushing attached to an opening of a side wall portion formed of molded resin. [0003] In recent years, with the increase in output of molded motors, the heat generated by the coils wound around the stator cores has increased. Therefore, there is a problem that the molding resin covering the coil is thermally degraded. [0004] Therefore, in order to suppress thermal deterioration of the molding resin, it has been proposed to us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/22H02K5/08
CPCH02K5/08H02K5/15H02K5/1732H02K5/225
Inventor 天谷崇德南部靖生
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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