Brushless motor for washing machine and drum-type washing machine provided with same

A drum-type washing machine and washing machine technology, which is applied to other washing machines, household appliances, applications, etc., can solve the problems that water cannot reach the motor 60, cannot sufficiently suppress rusting, and have poor electrical leakage and tracking, and achieve the effect of high reliability.

Inactive Publication Date: 2013-05-15
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the conventional drum-type washing machine, since the motor 60 is fixed below the water tank 52, it is difficult to prevent the water from reaching the motor 60 at all, and there is a problem that rust cannot be sufficiently suppressed in the conventional technology.
In addition, since water cannot be completely suppressed from reaching the winding, problems such as poor tracking and the like may occur

Method used

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  • Brushless motor for washing machine and drum-type washing machine provided with same
  • Brushless motor for washing machine and drum-type washing machine provided with same
  • Brushless motor for washing machine and drum-type washing machine provided with same

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0030] figure 1 It is a diagram showing a schematic configuration of a front-loading washing machine equipped with a brushless motor for a washing machine according to Embodiment 1 of the present invention. Such as figure 1 As shown, the drum type washing machine 10 wraps the rotating drum 11, and the drum type washing machine 10 supports the rotating drum 11 so that the rotating drum 11 can rotate freely. The water tank 12 elastically supported in the main body of the washing machine. In addition, a pulley 14 that transmits power to the rotary drum 11 via a drum rotating shaft 13 and a motor 20 that transmits power to the pulley 14 via a belt 15 are provided on the back surface of the water tank 12 . In the present embodiment, a brushless motor is employed as the motor 20 in order to achieve high efficiency and the like. Additionally, if figure 1 As shown, in this embodiment, the motor 20 is fixed below the water tank 12 by means of the mounting portion 27 .

[0031] ...

Embodiment approach 2

[0040] Figure 5 It is a figure which shows the structure of the brushless motor for washing machines concerning Embodiment 2 of this invention. Figure 5 The illustrated brushless motor for a washing machine is the same as the brushless motor for a washing machine in Embodiment 1 described above, and also resembles a brushless motor for a washing machine. figure 1 That is used in a front-loading washing machine. In addition, in Figure 5 In , the same reference numerals as in Embodiment 1 are assigned to the same constituent elements as in Embodiment 1. FIG.

[0041] Such as Figure 5 As shown, motor 120 as a brushless motor for washing machine according to this embodiment includes stator 130 fixed to water tank 12 of front-loading washing machine 10 , and rotor 140 held by stator 130 and rotatable relative to stator 130 .

[0042] The stator 130 includes a stator core 31 , a winding 33 , a stator frame 38 and a mounting part 27 . The structures of the stator core 31, t...

Embodiment approach 3

[0057] Figure 10 It is a figure which shows the structure of the brushless motor for washing machines concerning Embodiment 3 of this invention. Figure 10 The shown brushless motor for washing machine is the same as the brushless motor for washing machine in Embodiment 1 and Embodiment 2 described above, and also resembles figure 1 That is used in a front-loading washing machine. In addition, in Figure 10 Herein, the same reference numerals as those in Embodiment 1 and Embodiment 2 are attached to the same constituent elements as in Embodiment 1 and Embodiment 2. FIG.

[0058] Such as Figure 10As shown, a motor 220 as a brushless motor for a washing machine according to this embodiment includes a stator 30 fixed to the water tank 12 of the front-loading type washing machine 10, and a rotor 140 held by the stator 30 to freely rotate.

[0059] The stator 30 is the same as that of Embodiment 1, and includes a stator core 31 , a winding 33 , a stator molded portion 34 , a...

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Abstract

A brushless motor for a washing machine of the present invention is a motor that is preferably applicable to a drum-type washing machine. The brushless motor for a washing machine (20, 60, 120, or 220) is provided with a stator (30, 61, or 130) and a rotor (40 or 140). The stator contains a fitting (27) for fixing to a wash tub basket (12 or 52), a stator core (31), a winding (33), and a winding insulating material (32). The rotor contains a motor pulley (25) for connecting to a belt (15 or 55), a motor axis (23 or 62) held so as to be freely rotatable, a rotor core, and a magnet (42). In addition, mold portions (34 and / or 45) formed by resin material are provided upon the stator and / or the roller.

Description

technical field [0001] The present invention relates to a brushless motor for washing machines used in drum-type washing machines and the like, and a drum-type washing machine having the brushless motor. Background technique [0002] As a structure of a washing machine, there is a drum type washing machine having a rotating drum having a rotating axis in a horizontal direction or an oblique direction, and the power of a motor is transmitted to the rotating drum via a belt and a pulley. [0003] Conventionally, brushed motors (for example, see Patent Document 1) and induction motors (for example, see Patent Document 2) applied as motors have been used in such drum-type washing machines. For these motors, a steel plate motor having a frame of aluminum or the like has been used. [0004] Figure 11 It is a figure which shows the outline structure of the said conventional front-loading washing machine. Such as Figure 11 As shown, a conventional front-loading washing machine 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F37/40
CPCD06F37/304
Inventor 田代裕一郎松尾英明桧胁英治森崎昌彦
Owner PANASONIC CORP
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