front load washing machine

A drum-type washing machine and drum technology, which is applied to other washing machines, washing machines with containers, washing devices, etc., can solve the problem of increased noise, and achieve the effects of large circulation flow, low noise, and quietness.

Active Publication Date: 2017-03-01
HITACHI APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the rotation speed of the circulation pump is simply set quickly, a new problem of increased noise will arise.

Method used

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  • front load washing machine
  • front load washing machine
  • front load washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] In this embodiment, the next impeller 46 is assembled in Figure 5 The illustrated circulating pump 24 measures the noise when the circulating pump motor 47 is rotated forward.

[0163] Figure 15 (a) is a top view of the impeller used in the first embodiment, Figure 15 (b) Yes Figure 15 (a) Side view of the impeller.

[0164] Such as Figure 15 As shown in (a) and (b), the impeller 46 is formed by arranging six curved plates on the base plate 46b (outer diameter 53mm). The large blade 46a1, the small blade 46a2, the small blade 46a2 and the large blade 46a1 are arranged around the blade hub 46c. The order of the small blades 46a2 and the small blades 46a2 are arranged at equal intervals.

[0165] Incidentally, the outer diameter D of the large blade 46a1 and the small blade 46a2 in this embodiment is 44 mm.

[0166] The degree of curvature of the large blade 46a1 and the small blade 46a2 (the aforementioned "curve B") is 8 mm.

[0167] Such as Figure 15 As shown in (b), the ...

Embodiment 2

[0178]

[0179] Blade plate: Six tapered curved plates (two large blades and four small blades) B: 8mm

[0180] Blade height a: 21mm

[0181] Blade height b: 13.5mm

Embodiment 3

[0183]

[0184] Blade plate: six curved plates (two large blades and four small blades) B: 16mm

[0185] Blade height a: 21mm

[0186] Blade height b: 13.5mm

[0187] (Example 2)

[0188] Figure 16 (a) is a top view of the impeller explained in the second embodiment, Figure 16 (b) is viewed from the XVI direction Figure 16 (a) Side view of the impeller. In addition, in Figure 16 In (a) and (b), right and Figure 14 The same components in (a) and (b) are marked with the same symbols.

[0189] Such as Figure 16 As shown in (a) and (b), the impeller 46 is formed by arranging six curved plates (curved B=8mm) on a base plate 46b (outer diameter 53mm). Around the blade hub 46c, large blades 46a1, small blades 46a2, The small blade 46a2, the large blade 46a1, the small blade 46a2, and the small blade 46a2 are arranged at equal intervals in this order.

[0190] The impeller 46 of this embodiment is such as Figure 16 As shown in (b), except that a taper T is formed at the outer ends of th...

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PUM

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Abstract

The invention provides a drum type washing machine capable of ensuring relatively large circular flow and realizing lower noise. A circulating pump of the drum type washing machine provided by the invention has an impeller (46) which rotates in a way of sending out water from an outer groove into a drum when watering towards the inside of the drum, the impeller (46) has blades (46a) formed by a plurality of plate bodies arranged around a rotating shaft and radially configured, each blade (46a) bends from the rotating shaft side towards a radiation direction, and bending surfaces protrudes towards a rotation direction (r) of the impeller (46).

Description

Technical field [0001] The invention relates to a drum washing machine. Background technique [0002] The rotating shaft of the drum of the drum-type washing machine is approximately horizontal, or the rotating shaft is inclined so that the opening of the drum faces diagonally upward, and after the laundry is put in the drum, the washing process, the rinsing process, and the dehydrating process are performed. In the washing process and the rinsing process, the drum is rotated at a low speed to lift up the laundry stored under the drum, and thereafter, the tumble action that drops from above the drum is performed. Through this turning action, mechanical force is applied to the clothes for washing and rinsing. In the spin-drying process, the drum is rotated at a high speed, and by this rotation, moisture is squeezed out of the laundry to perform centrifugal spin-drying. [0003] In addition, in the washing process, the washing water in the washing tank (outer tank) is sucked by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F21/00D06F39/08
CPCD06F21/00D06F39/083
Inventor 山口龙之介佐野壮一上野真司
Owner HITACHI APPLIANCES INC
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