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Drum type washing machine

A drum-type washing machine, drum technology, applied to other washing machines, washing machines with containers, washing machine control devices, etc., can solve the problems of insufficient cooling, increased dehydration and rinsing operations, and low rinsing effect, etc., to achieve Reduce temperature, improve rinsing effect and cooling effect, and improve rinsing effect

Active Publication Date: 2010-04-21
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, if the above-mentioned existing device structure is adopted, in order to improve the rinsing effect of the clothes, the number of times of dehydration and rinsing operations must be increased, and the operation time will become longer.
In addition, when adding water and draining water at the same time, although the foam that occurs during the washing process and remains between the outer tub and the rotating drum can be washed away, because the rinse water is drained before it penetrates into the clothes , there is a problem that the rinsing effect is small
[0015] In addition, in the case of washing after heating the washing water to a high temperature (for example, 80° C.), since there is no function of cooling the heated clothes, and even if the water is added to a certain water level for cooling, sufficient washing cannot be performed sometimes. Cooling, so there is still the possibility that the user may touch the hot clothes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 1 A longitudinal sectional view of the front-loading washing machine in the first embodiment of the present invention, figure 2 It is a schematic cross-sectional view of the washing powder box and the water inlet device in the drum type washing machine, image 3 Partial block diagram of the control circuit diagram for the front-loading washing machine, Figure 4 It is an enlarged front view of the input setting device and display device in the drum type washing machine.

[0048] Such as figure 1 As shown in , the rotary drum 24 forms a cylindrical shape with a bottom, and the entire outer wall surface is provided with many water holes 25, which are arranged in the water tub 26 in a rotatable manner. The rotation center of the rotary drum 24 is provided with a rotary shaft (rotation center shaft 27) substantially in an inclined direction, and the axial direction of the rotary drum 24 is set to be inclined downward from the front side to the rear side. The tu...

Embodiment 2

[0073] Figure 5 It is a schematic operation flowchart of the above-mentioned front-loading washing machine in the second embodiment of the present invention, Figure 6 It is a schematic diagram of the rinsing operation steps of the drum type washing machine.

[0074] In the rinsing step, the control device 44 alternately executes the following two operation steps within the specified time T1: the adding and rinsing step of adding rinsing water between the first specified water level R1 and the second specified water level into the tub 26, and A drain rinse step of the drain is performed.

[0075] The other configurations are the same as those in the first embodiment, so only the same symbols are assigned here, and repeated description thereof will be omitted.

[0076] Refer below Figure 5 The flowchart in and Figure 6 The step chart in the above describes the operation and function of the above configuration.

[0077] When performing laundry operation, first open the c...

Embodiment 3

[0081] Figure 7 It is a schematic operation flow chart of the front-loading washing machine in the third embodiment of the present invention. Among them, the control device 44 operates the motor 28 during at least a part (time) of the water-adding rinsing step and the draining rinsing step in the second aspect, thereby driving the rotary drum 24 to rotate.

[0082] The other structures are the same as those of Embodiments 1 and 2 above, so only the same symbols are attached, and their repeated descriptions are omitted.

[0083] The operation in the above constitution will be described below. Figure 7 Steps 200-208 in the above are the same as steps 100-108 in Embodiment 1, so they will not be described here again.

[0084] In the rinsing step, after the drainage reaches the specified water level R3, in step 209, the control device 44 operates the water adding valve 37, and in step 210, the motor 28 starts to work, and the rotating drum 24 is stirred and rotated (such as st...

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Abstract

The invention provides a drum type washing machine for making the watering passage be a shunt for watering the water drum and the rotary drum synchronously in the rinsing step, thereby improving the wettability of clothings in short time and executing the watering step and the drainage step alternately at a defined water level in the defined time, improving rinsing performance further. The washingmachine is provided with a first watering hose (38a) whose one end is communicated with a watering valve (37), the other end is connected with a washing powder box (35); a second watering hose (38b)whose one end is communicated with the washing powder box, the other end is communicated with the water drum (26); a third watering hose (38c) whose one end is communicated with the washing powder box, the other end is connected with a watering hose head (48) with an opening on a watering position from a front opening part (24a) of the rotary drum (24) to the interior thereof.

Description

technical field [0001] The invention relates to a drum-type washing machine in which operation steps such as washing, rinsing, and dehydration are performed in a rotating drum whose rotating central axis is in a horizontal or inclined direction. Background technique [0002] In the existing drum-type washing machine, in order to improve the rinsing effect of the clothes, the steps of dehydration and rinsing are generally repeated, or water addition and drainage are performed simultaneously. Simultaneously, in the existing drum-type washing machine, the function of cooling the overheated clothing after high-temperature washing is generally not provided, or only the function of adding water to a certain water level is provided (for an example, refer to Japanese Patent Laid-Open Publication No. Kaiping 10-263285). [0003] Figure 11 A schematic diagram of the existing drum-type washing machine in the above-mentioned reference is shown, and its device configuration will be des...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F23/00D06F37/04D06F39/00D06F39/08D06F39/02D06F33/00
Inventor 皆吉裕子前田智史
Owner PANASONIC CORP
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