JP2004201775A - Drum type washing machine - Google Patents

Abstract

Kind Code: A1 In a drum type washing machine that sequentially controls processes such as washing, rinsing, and dehydration in a rotating drum, when washing with cold water in winter or the like, the temperature of clothes is efficiently raised to a predetermined temperature. In addition, it eliminates undissolved detergent, improves dirt removal of clothes, and reduces initial costs and running costs.
A rotating drum having a rotation axis in a substantially horizontal direction or a substantially inclined direction is included in a water tank, a door is provided at an opening of the water tank, and water is supplied into the water tank by a water supply valve for washing. At the same time, the water in the water tank 21 is drained by the drain pump 13, the heater 17 is connected to the blower 15 for blowing the water into the water tank 21, and the controller 20 controls the blower 15, the heater 17, and the like to perform a series of washing, rinsing, and dehydration. Is controlled sequentially. The control device 20 is configured to drive the blower 15 and the heater 17 to blow warm air into the water tub 21 during the washing process.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a drum-type washing machine that sequentially controls each process such as washing, rinsing, and dehydration in a rotating drum that is rotatably arranged in a substantially horizontal direction or a substantially inclined direction.
[0002]
[Prior art]
Conventionally, this type of drum type washing machine has been configured as shown in FIG. Hereinafter, the configuration will be described. FIG. 4 also has a drying function.
[0003]
As shown in FIG. 4, the housing 1 has a plurality of suspensions 2 and a damper 3 internally supporting a water tank 4 so as to be swingable, and an opening of the water tank 4 is opened and closed by a door 5. 6 is rotatably arranged. A number of water holes 7 and baffles 8 are provided in the rotating drum 6, and the rotating drum 6 is driven by a motor 9. A water supply valve for washing 10 and a water supply valve for drying 11 are provided in the housing 1, and a drain port 12 provided in the water tub 4 and a drain pump 13 are communicated by a drain path 14.
[0004]
The blower 15 blows air into the water tank 4 through the outlet 16, and is provided with a heater 17 communicating with the blower 16. The heat exchanger 18 connects the inside of the water tank 4 and the blower 16, and forms a series of drying circulation paths. Water is supplied from the drying water supply valve 10 into the heat exchanger 18 through a water supply hose.
[0005]
The control device 19 is configured by a microcomputer or the like, and controls the motor 9, the water supply valve for washing 10, the water supply valve for drying 11, the drain pump 13, the blower 15, the heater 17, and the like, and performs a series of steps of washing, rinsing, and dehydration. Are sequentially controlled (for example, see Patent Document 1).
[0006]
The operation of the above configuration will be described. When clothes (laundry) are put into the rotating drum 6 and the washing process is started, the water supply valve 10 for washing is opened and water is supplied to the water tub 4 to a predetermined water level. Next, the rotating drum 6 is driven at about 50 r / min, and the loaded clothes are repeatedly lifted and dropped by the baffle 8, and washed by the detergent water and the impact force when dropped on the water surface.
[0007]
When the washing process is completed, the drain pump 13 is driven to drain the washing water through the drain passage 14. After draining, the rotating drum 6 is rotated at a high speed of about 1000 r / min to perform dewatering. When the dehydration process is completed, the process shifts to the drying process.
[0008]
In the drying process, the rotating drum 6 is driven in the same manner as in the washing process, and while the clothes in the rotating drum 6 are stirred, the warm air heated by the blower 15 and the heater 17 is blown out to the clothes in the rotating drum 6 from the outlet 16. It sprays and heats and evaporates the moisture contained in the clothes. Further, the high-temperature air containing steam is sent into the heat exchanger 18 and mixed with the cooling water supplied from the drying water supply valve 11 into the heat exchanger 18 to perform heat exchange to be cooled and dehumidified. The dehumidified air is heated again by the heater 17 and sent into the rotary drum 6 to dry the clothes.
[0009]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 9-215893
[Problems to be solved by the invention]
In such a conventional configuration, when washing must be performed with cold tap water, for example, when washing is performed in winter, the detergent is hardly melted, and dirt on clothes is hardly removed. To solve this problem, some washing machines are provided with a hot water heater for washing.However, the initial cost increases accordingly, and not only the temperature of the clothes but also the temperature of the housing rises at the same time, and the temperature of the water reaches a predetermined temperature. It took time to reach and running costs were high.
[0011]
As a solution to this, when warm air heated by the blower 15 and the heater 17 is blown into the rotary drum 6 to heat the inside of the rotary drum 6, the suction port of the blower 15 is provided at the lower part of the water tank 4. As a result, it was not possible to blow air in the washing process because it was submerged in the washing process.
[0012]
The present invention solves the above-mentioned conventional problems, and when washing with cold water such as in winter, the temperature of clothes is efficiently raised to a predetermined temperature to eliminate the undissolved detergent and to remove stains of clothes. The purpose is to improve the initial cost and the running cost.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a rotating drum having a rotating shaft in a substantially horizontal direction or a substantially inclined direction in a water tank, a door provided in an opening of the water tank, and water supply in the water tank by water supply means. The water in the water tank is drained by the drainage means, the heating means is connected to the blowing means for blowing into the water tank, and the control means controls the blowing means, heating means, etc., and sequentially controls a series of steps of washing, rinsing, and dehydrating. The control means drives the blowing means and the heating means in the washing process to blow warm air into the water tank.
[0014]
This makes it possible to efficiently raise the temperature of the clothes to a predetermined temperature by blowing hot air into the water tank when washing with cold water such as in winter, eliminating the undissolved detergent and removing the clothes. It can improve dirt removal. Also, there is no need to separately provide a hot water heater for washing, which can reduce the initial cost. Further, by blowing hot air directly on the clothes, the heat quantity is not unnecessarily taken off by the housing or the water supply. In addition, running costs can be reduced.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention provides a rotating drum having a rotating shaft in a substantially horizontal direction or a substantially inclined direction, a water tank including the rotating drum, a door provided at an opening of the water tank, and the water tank. A water supply means for supplying water into the water tank, a drainage means for draining water in the water tank, a blowing means for blowing air into the water tank, a heating means communicating with the blowing means, the blowing means, a heating means, etc. Control means for sequentially controlling a series of steps of washing, rinsing and dehydration, wherein the control means drives the blowing means and the heating means in the washing step to blow warm air into the water tank. When washing with cold water such as in winter, by blowing warm air into the water tank, the temperature of the clothes can be efficiently raised to a predetermined temperature, eliminating the undissolved detergent, It can improve the dirt removal of clothes Kill. Also, there is no need to separately provide a hot water heater for washing, which can reduce the initial cost. Further, by blowing hot air directly on the clothes, the heat quantity is not unnecessarily taken off by the housing or the water supply. In addition, running costs can be reduced.
[0016]
According to a second aspect of the present invention, in the first aspect of the present invention, the blowing means has a suction port provided above a water level of the water tank, and the suction port of the blowing means is submerged in the washing water. Can be blown at the same time as washing, and can blow warm air directly onto the clothes containing washing water, raise the temperature of the clothes, improve the melting and dirt removal of the detergent, and trust A highly efficient drum type washing machine can be provided.
[0017]
According to a third aspect of the present invention, in the first aspect of the present invention, the blowing means has a suction port opened to the atmosphere, and the suction port of the blowing means is not submerged in the washing water and is circulated. Pipe resistance can be reduced as compared with blowing, and a large amount of air can be blown at the same time as washing. This makes it possible to provide a highly reliable drum-type washing machine that can raise the temperature of the clothes in a short time, has no detergent left undissolved, and has good stain removal.
[0018]
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the temperature of the hot air blown into the water tank can be arbitrarily set. By setting the appropriate clothing temperature, it is possible to perform fine-grained washing in accordance with the quality and quantity of the fiber of the clothing. Thereby, it is possible to provide a highly reliable drum-type washing machine that effectively raises the temperature without damaging the clothes with heat, and has good dirt removal.
[0019]
According to a fifth aspect of the present invention, in the invention of the first to third aspects, when the temperature of water supplied into the water tank is equal to or lower than a predetermined temperature, hot air is blown into the water tank. However, it is possible to provide an economical and easy-to-use drum-type washing machine with good dirt removal, and since the hot air is not blown when the water temperature is equal to or higher than a predetermined temperature, the running cost can be reduced.
[0020]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components having the same configuration as the conventional example are denoted by the same reference numerals, and description thereof is omitted.
[0021]
(Example 1)
As shown in FIG. 1, the control device (control means) 20 is constituted by a microcomputer or the like, and includes a motor 9, a water supply valve for washing (water supply means) 10, a water supply valve for drying 11, a drainage pump (drainage means) 13, A blower (blowing means) 15, a heater (heating means) 17, and the like are controlled to sequentially control a series of steps of washing, rinsing, and dehydrating. In the washing step, the blower 15 and the heater 17 are driven, and a water tank is formed. 4 is configured to blow hot air.
[0022]
The water tub 21 has a suction port 22 of the blower 15 opened on the wall surface, and the suction port 22 is provided above the washing water level P of the water tub 21.
[0023]
The operation of the above configuration will be described. When clothes (laundry) are put into the rotating drum 6 and the washing process is started, the water supply valve 10 for washing is opened, and water supply into the water tub 21 is started. The water supply amount is detected by a water level detection means (not shown), and when the water level reaches a predetermined water level P, the water supply is stopped. Next, the rotating drum 6 is driven at a speed of about 30 to 50 r / min to stir the clothes and to make the clothes absorb the washing water evenly.
[0024]
The control device 20 drives the blower 15 and the heater 17 to blow warm air into the water tank 21 while stirring the clothes in the rotating drum 6. The heated warm air is blown directly from the outlet 16 onto the clothes in the rotary drum 6 to heat the clothes and the moisture contained in the clothes. The washing water that has been heated and contained in the clothes becomes a washing water having a higher concentration, dissolves dirt such as sebum dirt, and can be easily washed off.
[0025]
Here, the suction port 22 of the blower 15 is provided above the washing water level P of the water tub 21, so that the suction port 20 can be blown at the same time as washing without being submerged in the washing water.
[0026]
As described above, according to the present embodiment, the blower 15 and the heater 17 are driven in the washing process to blow warm air into the water tank 21. Therefore, when washing with cold water such as in winter, the water tank is used. By blowing the warm air into the inside 21, the temperature of the clothes can be efficiently raised to a predetermined temperature, and the undissolved residue of the detergent can be eliminated, and the clothes can be easily removed. Also, there is no need to separately provide a hot water heater for washing, which can reduce the initial cost. Further, by blowing hot air directly on the clothes, the heat quantity is not unnecessarily taken off by the housing or the water supply. In addition, running costs can be reduced.
[0027]
Further, since the suction port 22 of the blower 15 is provided above the washing water level P, the suction port 22 of the blower 15 is not submerged in the washing water, and can be blown at the same time as the washing, thereby providing warm air. Can be sprayed directly on the clothes containing the washing water, and the temperature of the clothes can be effectively raised, so that the detergent can be easily melted and stains can be removed.
[0028]
(Example 2)
As shown in FIG. 2, the suction port 23 of the blower 15 is open to the atmosphere without opening to the wall surface of the water tank 24. The other configuration is the same as that of the first embodiment, and the same reference numerals are given and the description is omitted.
[0029]
The operation of the above configuration will be described. When clothes (laundry) are put into the rotating drum 6 and the washing process is started, the water supply valve 10 for washing is opened, and water supply into the water tub 24 is started. The water supply amount is detected by a water level detection means (not shown), and when the water level reaches a predetermined water level P, the water supply is stopped. Next, the rotating drum 6 is driven at a speed of about 30 to 50 r / min to stir the clothes and to make the clothes absorb the washing water evenly.
[0030]
While stirring the clothes in the rotating drum 6, the control device 20 drives the blower 15 and the heater 17 to blow hot air into the water tank 24. At this time, the suction port 23 of the blower 15 is open to the atmosphere, does not submerge in the washing water, has less pipeline resistance than the circulating blower shown in the first embodiment, and has a large air volume at the same time as washing. The wind can be blown.
[0031]
As a result, warm air is directly blown onto the clothes in the rotating drum 6 from the outlet 16 to the clothes in the rotating drum 6, so that the temperature of the clothes can be raised in a short time, and the melting and dirt removal of the detergent is improved. be able to.
[0032]
As described above, according to the present embodiment, since the suction port 23 of the blower 15 is opened to the atmosphere, the suction port 23 of the blower 15 does not submerge in the washing water, and the pipeline resistance is smaller than that of the circulating blower. It is possible to blow large air volume at the same time as washing.
[0033]
(Example 3)
The control device (control means) 20 shown in FIG. 1 can arbitrarily set the temperature of the hot air blown into the water tank 21. Other configurations are the same as those in the first embodiment.
[0034]
The operation of the above configuration will be described. When clothes (laundry) are put into the rotating drum 6 and the washing process is started, the water supply valve 10 for washing is opened and water is supplied to the water tub 21 to a predetermined water level. Next, the rotating drum 6 is driven at a speed of about 30 to 50 r / min to stir the clothes and to make the clothes absorb the washing water evenly.
[0035]
While stirring the clothes in the rotating drum 6, the control device 20 drives the blower 15 and the heater 17 to heat the blow. The heated warm air is blown from the outlet 16 onto the clothes in the rotating drum 6 to directly heat the clothes and the moisture contained in the clothes. By heating the washing water contained in the clothes, the washing water becomes higher in concentration, dissolves dirt such as sebum dirt, and can be easily washed off. Here, the control device 20 sets an optimum warm air temperature according to the washing course or the amount of clothes, and performs fine washing in accordance with the quality of the fiber of the clothes.
[0036]
As a result, the temperature of the clothes can be effectively increased without damaging the fibers of the clothes with heat, and the stains can be easily removed.
[0037]
As described above, according to the present embodiment, the temperature of the hot air blown into the water tank 21 can be arbitrarily set, so that the clothing temperature can be set according to the type of the fiber of the clothing and the degree of dirt.
[0038]
In the above embodiment, the suction port 22 of the blower 15 is opened on the wall surface of the water tank 21, but as shown in the second embodiment, the suction port 23 of the blower 15 is not opened on the wall surface of the water tank 24, It may be open to the atmosphere, and a similar effect can be obtained.
[0039]
(Example 4)
As shown in FIG. 3, the water temperature detection sensor 25 is attached to the water tank 21 and detects the temperature of water supplied to the water tank 21. The control device (control means) 26 is constituted by a microcomputer or the like, and includes a motor 9, a water supply valve for washing (water supply means) 10, a water supply valve for drying 11, a drainage pump (drainage means) 13, a blower (blower means) 15, The heater (heating means) 17 and the like are controlled to sequentially control a series of steps of washing, rinsing, and dehydrating, and the water temperature in the water tank 21 detected by the water temperature detection sensor 25 is a predetermined temperature (for example, 10 ° C.). In the following cases, warm air is blown into the water tank 21. The other configuration is the same as that of the first embodiment, and the same reference numerals are given and the description is omitted.
[0040]
The operation of the above configuration will be described. When clothes (laundry) are put into the rotating drum 6 and the washing process is started, the water supply valve 10 for washing is opened, and water supply into the water tub 21 is started. The water supply amount is detected by a water level detecting means (not shown), and when the water level reaches a predetermined water level P, the water supply is stopped, the rotating drum 6 is driven at about 30 to 50 r / min, the clothes are stirred, and the washing water is evenly distributed to the clothes. Water.
[0041]
At this time, when the water temperature detected by the water temperature detection sensor 25 is equal to or lower than a predetermined temperature, the control device 26 drives the blower 15 and the heater 17 to heat the air. The heated warm air is blown from the outlet 16 onto the clothes in the rotating drum 6 to directly heat the clothes and the moisture contained in the clothes.
[0042]
When the washing water contained in the clothes is heated, the washing water becomes a higher concentration washing liquid, dissolves dirt such as sebum dirt, and makes it easier to wash off.
[0043]
As described above, according to the present embodiment, when the temperature of the water supplied into the water tank 21 is equal to or lower than the predetermined temperature, the hot air is blown into the water tank 21. A good drum-type washing machine can be provided, and when the water temperature is equal to or higher than a predetermined temperature, hot air is not blown, so that running costs can be reduced.
[0044]
In the above embodiment, the suction port 22 of the blower 15 is opened on the wall surface of the water tank 21, but as shown in the second embodiment, the suction port 23 of the blower 15 is not opened on the wall surface of the water tank 24, It may be open to the atmosphere, and a similar effect can be obtained.
[0045]
【The invention's effect】
As described above, according to the first aspect of the present invention, in the washing step, the blowing means and the heating means are driven to blow hot air into the water tank, so that washing is performed with cold water such as in winter. In this case, the temperature of the clothes can be efficiently raised to a predetermined temperature by blowing warm air into the water tank, so that the detergent remains undissolved and the clothes can be removed more easily. Also, there is no need to separately provide a hot water heater for washing, which can reduce the initial cost. Further, by blowing the warm air directly onto the clothes, the heat quantity is not unnecessarily taken away by the housing and the water supply. In addition, running costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view of a drum type washing machine according to a first embodiment of the present invention. FIG. 2 is a vertical sectional view of a drum type washing machine according to a second embodiment of the present invention. FIG. 4 is a vertical sectional view of a drum type washing machine according to a fourth embodiment. FIG. 4 is a vertical sectional view of a conventional drum type washing machine.
5 Door 6 Rotary drum 10 Water valve for washing (water supply means)
13 Drainage pump (drainage means)
15 Blower (blower means)
17 heater (heating means)
20 control device (control means)
21 Aquarium

Claims (5)

A rotating drum having a rotation axis in a substantially horizontal direction or a substantially inclined direction, a water tank including the rotating drum, a door provided at an opening of the water tank, water supply means for supplying water to the water tank, Drainage means for draining water, blowing means for blowing air into the water tank, heating means communicating with the blowing means, controlling the blowing means, heating means and the like to sequentially control a series of steps of washing, rinsing and dehydration. A drum-type washing machine configured to drive the air blowing unit and the heating unit to blow hot air into the water tub during a washing process. 2. The drum type washing machine according to claim 1, wherein the blowing means has a suction port provided above a water level of the water tank. 2. The drum type washing machine according to claim 1, wherein the blowing means has a suction port opened to the atmosphere. The drum type washing machine according to any one of claims 1 to 3, wherein the temperature of the hot air sent into the water tank can be arbitrarily set. The drum type washing machine according to any one of claims 1 to 3, wherein when the temperature of water supplied into the water tank is lower than a predetermined temperature, hot air is blown into the water tank.

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