JP2013085788A - Drum type washing and drying machine, and program for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum type washing and drying machine that achieves a drying operation with suppressed power consumption for drying and high energy-saving properties without the occurrence of insufficient drying and uneven drying.SOLUTION: The drum type washing and drying machine includes: a cloth quality detection means 11b for detecting a cloth quality of laundry according to a speed at which water accumulated in a water tub 3 enters an inner surface side of a washing tub 4 and is absorbed into laundry; a blower 9c for feeding circulating air to the washing tub; heating means for heating the circulating air; and control means 11a to which an output of the cloth quality detection means 11b is input, for successively controlling the respective processes of washing, rinsing, dewatering, and drying. The control means 11a changes an output by the heating means according to the cloth quality detected by the cloth quality detection means. Thereby the drum type washing and drying machine is capable of setting a necessary minimum output by the heating means corresponding to the cloth quality, and achieves a drying operation with suppressed power consumption for drying and excellent energy-saving properties without the occurrence of insufficient drying and uneven drying.

Description

  The present invention includes a washing tub that accommodates laundry in an elastically supported water tub and is rotatable, and performs washing, rinsing, dehydration, and drying of the laundry in the washing tub. It is about.

  In the drying process of the conventional drum type washing and drying machine, heated drying air is blown into the washing tub through the air passage, and the clothes put in the washing tub are brought into contact with the drying air to remove moisture from the clothing. Dry. At the same time, the drying air containing moisture and having become high humidity is discharged to the air passage outside the washing tub. In particular, since clothes are dried in a limited, narrow laundry tub space, clothes are entangled during drying, and the drying air does not contact the entangled parts of the clothes and is partially undried (dry unevenness) It may become. In order to prevent drying unevenness, it is necessary for the drying air to be in uniform contact with all clothing, and a slightly longer drying time is required while maintaining the temperature of the drying air at a predetermined level or higher. Thus, in order to prevent partial undried (drying unevenness), there is a problem that heating energy and required time more than necessary are required, and the required time increases, and various methods are available for solving the problem. It is considered (for example, refer to Patent Document 1).

  The conventional clothes dryer described in Patent Document 1 includes a washing tub, an air circulation device, and a heat pump. A clothes dryer that dries laundry by operating an air circulation device and a heat pump, and the rotation speed of the compressor is varied by controlling the frequency. By changing the driving frequency of the compressor, it is possible to select and execute either a quick-drying course for drying laundry in a relatively short time or a saving course for drying laundry in a longer time than the quick-drying course. is there. The quick-drying course is executed by increasing the drive frequency of the compressor of the heat pump. Thereby, the rotational speed of a compressor becomes high and the circulation of the refrigerant | coolant in a heat pump becomes thriving. Therefore, the laundry is dried in a short time. On the other hand, during the saving course, the driving frequency of the compressor of the heat pump is lowered. Thereby, the rotational speed of a compressor becomes low and the circulation of the refrigerant | coolant in a heat pump is suppressed. Therefore, the laundry is dried with less power consumption. Therefore, it is possible to achieve both reduction of the time required for drying and reduction of power consumption for each course to be selected. Further, in the saving course, by driving the compressor in a frequency band with a high coefficient of performance, efficient operation is possible, and power consumption can be further saved.

International Publication No. 10/010679

  However, in the conventional configuration, in order to drive the compressor in a frequency band having a high coefficient of performance, it is necessary for the user to select a saving course every time. Since the frequency band having a high coefficient of performance differs depending on the combination of the clothes that have been applied, there is a problem that the degree of saving is limited.

The present invention has been made in order to solve the above-described problems. While accurately detecting the cloth composition ratio of the clothes to be dried in the drying process, the output of the heating unit is output according to the detected cloth composition ratio. An object of the present invention is to provide a drum-type washing / drying machine that can realize a highly energy-saving drying operation that suppresses power consumption for drying without causing insufficient drying or unevenness of drying.

  In order to solve the above-mentioned problems, the drum type washing and drying machine of the present invention accommodates laundry and is rotatable about a horizontal axis or a rotation axis inclined downward from the front side toward the back side. A water tub that houses the washing tub, a driving means that drives the washing tub, and a water supply means that supplies water to a space formed between the outer surface of the washing tub and the inner surface of the water tub. Water level detecting means for detecting the water level in the water tub, and cloth quality detection for detecting the cloth quality of the laundry by the speed at which water accumulated in the water tub enters the inner surface of the laundry tub and is absorbed by the laundry. Input means, a blowing means for sending the circulating air to the washing tub, a heating means for heating the circulating air, and the output of the cloth quality detecting means, and sequentially controlling each step of washing, rinsing, dehydration and drying Control means, wherein the control means is the fabric quality Depending on the fabric quality by known means, in which so as to change the output of the heating means.

  According to the above configuration, drying with excellent energy-saving performance that suppresses the power consumption of drying without causing insufficient drying and uneven drying by setting the output of the minimum heating means according to the fabric quality Driving can be realized.

  The washing machine of the present invention sets the output of the minimum heating means necessary for drying according to the cloth quality, and does not cause insufficient drying or uneven drying, and saves energy consumption for drying. It is possible to realize an excellent drying operation.

Sectional drawing which shows schematic structure of the drum type washing machine in Embodiment 1 of this invention The block diagram which shows the structure of the control unit 11 of the drum type washing machine Flow chart showing water supply control of the drum type washing machine Water level transition diagram according to the type of cloth of the laundry at the initial stage of water supply of the drum type washing machine The flowchart which shows the water supply control of the drum type washing machine in Embodiment 2 of this invention.

  According to the first aspect of the present invention, the laundry tub has a plurality of through holes that are rotatable around a horizontal axis or a rotation axis that is inclined downward from the front side toward the back side. A water tank for storing the water, drive means for driving the washing tub, water supply means for supplying water to a space formed between the outer surface of the washing tub and the inner surface of the water tub, and a water level for detecting the water level in the water tub Detection means, cloth quality detection means for detecting the cloth quality of the laundry by the speed at which water accumulated in the water tub enters the inner surface of the washing tub and is absorbed by the laundry, and circulating air is supplied to the washing tub A control means for sequentially controlling the steps of washing, rinsing, dewatering and drying, by inputting the output of the cloth quality detecting means, Depending on the fabric quality by the fabric quality detection means, It is obtained so as to change the output means.

  With such a configuration, by setting the minimum required output of the heating means according to the cloth quality detected by the cloth quality detection means, it is possible to reduce the power consumption of drying without causing insufficient drying or uneven drying. It is possible to achieve a dry operation with high energy-saving performance.

  According to a second aspect of the invention, the cloth quality detecting means of the drum type laundry dryer according to the first aspect of the invention determines a ratio of fibers having high water absorption and fibers having low water absorption as a material constituting the laundry. It is.

  With such a configuration, the laundry that has been put in by the cloth quality detecting means has a high ratio of being composed of a material with high water absorption, or "a large percentage of being composed of a material with low water absorption". Such a determination can be made appropriately, and the minimum required output of the heating means can be set according to the fabric properties. For this reason, the drying operation with high energy saving which maximized the drying efficiency can be realized.

  In a third aspect of the invention, the control means of the drum-type washing / drying machine of the first or second aspect of the invention detects that the laundry is composed of fibers having low water absorption by the cloth quality detection means. In this case, the larger the ratio, the smaller the output of the heating means.

  With such a configuration, the laundry that has been put in by the cloth quality detecting means has a high ratio of being composed of a material with high water absorption, or "a large percentage of being composed of a material with low water absorption". After the determination is made, the output of the heating means can be greatly reduced because at least the amount of heat required at the time of drying is at least when there are many synthetic fibers. For this reason, the drying operation excellent in energy saving property is realizable.

  4th invention is a heat pump cycle in which the said heating means of the drum type washing-drying machine of any one of 1st-3rd invention has a compressor and a heat exchanger.

  With such a configuration, the heating method using the heat pump cycle has better thermal efficiency, and thus it is possible to improve the drying performance under the condition of excellent energy saving.

  5th invention WHEREIN: When the said control means of the drum type washing-drying machine of 4th invention detects that the ratio from which the said laundry is comprised from a fiber with low water absorption is large by the said cloth quality detection means, The higher the ratio, the lower the frequency for driving the compressor.

  With such a configuration, the laundry that has been put in by the cloth quality detecting means has a high ratio of being composed of a material with high water absorption, or "a large percentage of being composed of a material with low water absorption". After the determination is made, the output of the heating means can be greatly reduced because at least the amount of heat required at the time of drying is at least when there are many synthetic fibers. For this reason, it becomes possible to improve a drying performance on the conditions excellent in energy saving property.

  A sixth aspect of the invention is a drum-type washing / drying machine according to any one of the first to fifth aspects of the present invention, comprising a program for causing a computer to execute at least one.

  With such a configuration, since it is a program, a part or all of the washing machine of the present invention can be easily realized using a microcomputer or the like. Further, the program can be easily distributed by recording it on a recording medium or distributing the program using a communication line.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view showing a schematic structure of a drum type washing machine in Embodiment 1 of the present invention, and the configuration will be described below with reference to FIG.

A water tub 3 is housed in the washing machine body 1 so as to be swingable. A rotating drum 4 serving as a washing tub is disposed in the water tub 3 so as to be rotatable around a rotation shaft 4a. A rotating shaft 4 a of the rotating drum 4 is directly connected to a motor 6 attached to the outside of the back surface of the water tank 3, and the rotating drum 4 is rotationally driven by the motor 6.

  The rotating drum 4 is provided with a plurality of through holes 4e over the entire peripheral wall 4c so that water can be passed and vented through the water tank 3 and the rotating drum 4. A plurality of rear openings 4f are formed along the circumferential direction on the rear wall 4d of the rotating drum 4, and these rear openings 4f are arranged so as to face the air guide opening 9e formed at the upper part on the rear side of the water tank 3. Has been. A plurality of agitation protrusions 4 b are provided on the inner surface of the peripheral wall 4 c of the rotating drum 4, and the laundry in the rotating drum 4 is lifted by the rotation of the rotating drum 4. Although the through-hole 4e is provided over the entire peripheral wall of the rotary drum 4, it may be partially formed on the peripheral wall of the rotary drum 4. In short, the air permeability between the water tank 3 and the rotary drum 4 and the passage of air are sufficient. What is necessary is just to set so that wateriness can be ensured and it does not interfere with drying from washing.

  Further, the rotating shaft 4a of the rotating drum 4 is inclined so as to face downward from the front side toward the back side. Specifically, the rotating shaft 4a is arranged to be inclined downward from the horizontal direction X by, for example, an angle θ = 20 ± 10 degrees. Has been. By inclining the rotation shaft 4a in this way, the opening 13 on the front side of the water tank 3 can be arranged on the upper side, and the inside of the rotating drum 4 can be passed through the opening 13 of the water tank 3 without taking a posture of bending greatly. The laundry can be taken out. Compared with the case where the rotating shaft 4a is in the horizontal direction, the water supplied into the water tank 3 is accumulated on the back side, and a deep water storage state can be obtained even with a small amount of water. Water enters through the through holes 4e of the rotating drum 4, wets the laundry, and can detect the water absorption speed.

  In order to efficiently supply water to the laundry in the rotating drum 4, the water tank 3 has the same inclination as the rotating drum 4 and is provided along the vicinity thereof. By inclining the rotating drum 4 and the water tub 3, water starts to contact the outer peripheral side of the laundry earlier than the horizontal arrangement, so that the cloth quality can be detected quickly. If the amount of water supply is not taken into consideration, the rotating drum 4 may be horizontal or the inclination angle θ may be less than 10 degrees.

  Moreover, the opening part which opens in the rotating drum 4 through the opening 13 of the water tank 3 is provided in the front side of the washing machine main body 1, and the opening-and-closing door 5 is provided in the opening part so that opening and closing is possible. The opening 13 of the aquarium 3 is provided with an annular sealing material 14 at the edge thereof, and the front side of the sealing material 14 comes into contact with the rear side of the open / close door 5 to be sealed, and the opening of the aquarium 3 swings up and down, right and left, and back and forth. Even if the seal moves, the sealing material 14 is deformed and is pressed against the back side of the open / close door 5 to maintain the sealing performance.

  The water supply means 7 disposed in the upper part of the water tank 3 includes a water supply valve 7b, a detergent storage portion 7a supplied with water by opening and closing the water supply valve 7b, water supplied with the detergent in the detergent storage portion 7a and the inner surface of the water tank 3 and the rotating drum 4 It has the water supply path 7c supplied to the space Y formed between the outer surfaces. By supplying water to the space Y formed between the inner surface of the water tub 3 and the outer surface of the rotating drum 4 in this way, the water stored in the bottom of the water tub 3 is gradually not directly applied to the laundry in the rotating drum 4. Since the water is brought into contact with the laundry via the through hole 4e of the rotating drum 4 and the water absorption of the laundry is started, it is possible to detect the water absorption speed which varies depending on the cloth quality. Note that the water supply means 7 does not necessarily have to be disposed at the top, and may be on the back side, the side surface, and the bottom side of the water tank 3 as long as water can be supplied so that the laundry is not directly exposed to water.

  The drainage means 8 has a drain pipe 8a having one end connected to the bottom of the aquarium 3, and a drain valve 8b. When the drainage valve 8b is opened and closed, the water tank 3 is used when necessary, for example, at the end of the washing process or at the end of the rinsing process. The water inside is drained through the drain pipe 8a. Further, a drainage filter 15 that can be removed from the outside of the washing machine main body 1 is disposed on the downstream side of the drainage pipe 8a to collect lint contained in drainage.

The drying means 9 captures the discharge port 9f for discharging air from the water tank 3 and the rotating drum 4, the blower 9c as a blowing means for sucking air from the discharge port 9f, and the lint contained in the air from the discharge port 9f. A filter (not shown) that collects and removes dust is connected to an air inlet 9e that is provided on the back side of the water tank 3 and that introduces air blown from the blower 9c into the rotating drum 4, and an air blower 9c and the air inlet 9e. It has a ventilation path 9d and heating means. The heating means is a heat pump cycle in the present embodiment, and has a heat exchanger including a dehumidifying part 9g and a heating part 9h, a compressor 9i, and a throttle means (not shown). The dehumidifying part 9g is arranged in the air blowing path 9d and dehumidifies the high-humidity air from the outlet 9f. The heating unit 9h is arranged on the downstream side of the dehumidifying unit 9g in the air blowing path 9d, and heats the air after dehumidification into high-temperature air.

  An operation panel 21 having a plurality of input keys and a display device for displaying setting contents is arranged at the upper front of the washing machine main body 1. The operation panel 21 is connected to the control unit 11 and controls signals from the input keys. The data is input to the unit 11, and the control unit 11 controls the display state of the display device. The control unit 11 controls the operation of the motor 6, the drain valve 8b and the water supply valve 7b constituting the drum type washing machine, and carries out the washing, rinsing, dehydrating and drying operations set by the input keys on the operation panel 21. Further, the control unit 11 controls the water supply amount (water level) into the water tank 3 by inputting a signal from the water level detection means 10 for detecting the water level in the water tank 3 and controlling the water supply valve 7b.

  Next, details of the control unit 11 will be described with reference to FIG. FIG. 2 is a block diagram showing the configuration of the control unit 11 of the drum type washing machine in Embodiment 1 of the present invention. The control unit 11 includes a control means 11a constituted by a microcomputer, a cloth quality detection means 11b for detecting the cloth quality of the laundry, and a cloth amount detection means 11c for detecting the amount of the laundry.

  Hereinafter, an example of the cloth amount detection unit 11c will be described.

  First, the motor 6 is rotationally driven. At this time, the rotational speed of the rotating drum 4 is temporarily raised to a rotational speed at which the laundry sticks to the inner peripheral wall of the rotating drum 4, for example, about 100 to 140 r / min. After maintaining the rotation for a predetermined time, the motor 6 is turned off. Thereby, the inertial rotation of the rotating drum 4 is in a state where the motor 6 is rotated. At this time, the inertial rotational force of the rotating drum 4 gradually decreases due to the friction torque, and the rotating drum 4 stops eventually. The time from the stop of energization to the stop of the rotating drum 4 is long when the amount of laundry is large, and short when the amount of laundry is small. The amount of laundry is detected using the fact that the difference in time required for this stop is proportional to the amount of laundry.

  Further, the drum type washing machine according to the present embodiment is provided with a water level detection means 10 for detecting the amount of water supplied into the rotary drum 4. This is a hose connection between an air trap part and a pressure detection part (not shown) arranged at a predetermined position near the lowest part of the rotating drum 4. The pressure detector is composed of a ferrite integrated with the bellows part that moves by pressure and a fixed coil that surrounds the outer periphery of the ferrite, and converts the moving stroke distance into the trap internal pressure using the change in inductance. . The water level detection means 10 is in an open state when the washing liquid does not come into the air trap part, and the output is constant. In the case of a water level below this detection lower limit water level, the amount of water and the presence or absence of water cannot be detected. As described above, the water level detection means 10 is generally sensing by air internal pressure measurement by an air trap mechanism, and measuring the time until the air internal pressure changes from the stable atmospheric open pressure affects the variation of the water level sensor. It is an appropriate calculation method that is not subject to The output of the water level detection means 10 changes depending on the rotation speed of the rotary drum 4 because the output changes depending on the rotation of the rotary drum 4 during the washing operation, such as whether or not the rotary drum 4 is rotating. Have multiple tables. That is, the water level can be recognized while the rotating drum 4 is stationary or rotating.

The drum-type washing machine control unit 11a according to the first embodiment of the present invention automatically controls the motor 6, the water supply valve 7b, the drain valve 8b, the blower 9c, and the compressor 9i according to mode setting or a control program, and at least a cleaning process. It has a function of performing a rinsing step, a dehydrating step, and a drying step.

  The operation of the drum type washing machine configured as described above will be described including the process of detecting the cloth quality. FIG. 3 is a flowchart showing water supply control of the drum type washing machine in the first embodiment of the present invention. FIG. 4 shows a water level transition diagram at the initial stage of water supply by the laundry of the washing machine according to Embodiment 1 of the present invention.

  In FIG. 3, when the laundry is put in and the operation is started, water supply is started in the water supply process. Here, the rotating drum is rotated in one direction at a predetermined number of revolutions before the start of water supply (S1). The rotation number is a rotation number such as 60 r / min so that the laundry sticks to the inner peripheral wall of the rotation drum 4. By supplying water while rotating the rotating drum 4 at such a speed, it is possible to prevent the laundry from rolling and uniquely match the condition of how to wet the laundry. Further, even when the amount of laundry changes, the laundry can be wetted under similar conditions, so that the dependence on the amount of fabric can be suppressed, and the cloth quality can be detected with high accuracy. Further, the rotation start of the rotary drum 4 is not limited to before the start of water supply, and may be simultaneous.

  Next, the water supply valve 7b is opened (S2), and counting of the water supply time t is started, and water is supplied to the water tank 3 until the predetermined water level A is reached (S3). The predetermined water level A is a water level that can contact the outer peripheral side of the laundry in the rotating drum 4.

  The cloth quality detection according to the first embodiment of the present invention performs the cloth quality detection based on the time until a predetermined water level is reached. That is, when it is determined that the laundry fabric has high water absorption based on the water supply time t at the predetermined water level A, the setting content of the drying process is changed to increase according to the high water absorption. .

  As shown in FIG. 4, the initial water absorption speed of chemical fibers such as polyester penetrates a wider area earlier, so that the water absorption is faster than cotton, that is, the water supply time is longer. If the laundry is all cotton, the water absorption speed is slow, so the time for reaching the predetermined water level A is fast. On the other hand, for example, in the case of chemical fibers such as polyester, the water absorption speed is fast, so the time for reaching the predetermined water level A is slow. The fabric quality can be detected by confirming the water supply time t at which the water level A reaches the predetermined water level A by utilizing the difference in water absorption speed due to the fabric quality. Specifically, it is determined whether the water supply time t is shorter than the predetermined time T1 when the predetermined water level A is reached (S4). If the water supply time t is shorter (YES in S4), the frequency of the compressor 9i is set higher. Ensuring sufficient drying performance (S5).

  Here, the predetermined time T1 is between the time from the start of water supply to the predetermined water level A when all are cotton towels, and the time until the predetermined water level A is reached when cotton and chemical fibers are mixed. It is time to set. For example, let T1 be the time required to supply water to a predetermined water level A when 70% of cotton is included in the total amount of laundry.

  On the other hand, when the control means 11a determines that the laundry fabric has low water absorption based on the water supply time t at the predetermined water level A, the setting content of the drying process is changed according to the low water absorption fabric. To do. Specifically, when the water supply time t is longer than the predetermined time T1 when the predetermined water level A is reached (NO in S4), it is determined whether the water supply time t is shorter than the predetermined time T2 (S6). (YES in S6), the setting content of the compressor 9i is left as it is (S7). Here, the predetermined time T2 is the time from the start of water supply to the predetermined water level A when all are chemical fibers such as polyester, and the time until the predetermined water level A is reached when cotton and chemical fibers are mixed. It is time to set between. For example, let T2 be the time taken to supply water up to a predetermined water level A when 70% of polyester is included in the total amount of laundry.

  When the water supply time t is longer than the predetermined time T2 when the predetermined water level A is reached (NO in S6), the frequency of the compressor 9i is set low so as not to be undried (S8).

  When the washing process is completed (S9), the rinsing process (S10), the dehydration process (S11), and the drying process (S12) are entered, the drying operation is performed for the drying time changed as described above. When the set drying time has elapsed (YES in S13), the drying process is finished and all the operations are finished.

  The water level transition diagram at the initial stage of water supply by the laundry used to determine the predetermined times T1 and T2 is not limited to polyester or cotton as long as it shows similar water absorption characteristics. Further, in the first embodiment, the rank of the set water level is determined by three types of water absorption characteristics of cotton, chemical fiber, and a mixture of cotton and chemical fiber. However, the present invention is not limited to this. Other fibers such as nylon may also be used as the fiber to refine the ranking. Moreover, in mixing cotton and chemical fibers, the mixing ratio may be changed to 1: 2, 1: 1, 2: 1, or the like.

  Here, it supplements about the setting of the drying time according to a cloth quality. As described above, the laundry is roughly divided into cotton fibers and chemical fibers. However, the cotton fibers are more dense than the chemical fibers because the fibers themselves form when they contain water and expand. Accordingly, when drying is performed by applying heat to clothing, the time required for the moisture from the clothing to evaporate is longer for cotton fibers than for chemical fibers. This is because the chemical fibers are less sparse and the heat is more likely to reach the back of the fibers and does not absorb much water. That is, the amount of heat required for drying away moisture during drying is large for cotton fibers. On the other hand, when the fabric quality is large, the water absorption is low, so that the heating amount necessary for drying is relatively small. For this reason, as in the past, in the drying method when the fabric quality is unknown, if there is no undried for all the clothes and an attempt is made to satisfy the drying finish, the cotton fibers will be timed to dry, and the chemical fibers Becomes overdried. Therefore, there is a concern about thermal stress on chemical fibers. On the other hand, in the case of the drying method this time, by setting the condition that the mixing ratio of cotton and chemical fiber is about 1: 1 as a standard drying setting, a time of about ± 10 minutes is set according to the ratio. If changed, it is also possible to avoid excessive heat stress on the clothing while satisfying the drying performance.

  As described above, according to the present embodiment, there is provided a cloth quality detection means for detecting the composition ratio of cotton and synthetic fiber in the garment accommodated in the washing tub, and whether the ratio composed of fibers with high water absorption is large. It can be determined whether the proportion of the fibers having low water absorption is large. Further, by setting the minimum frequency of the compressor 9i according to the result of the cloth quality detection means 11b, energy saving performance that suppresses the power consumption of drying without causing insufficient drying or uneven drying is achieved. Excellent drying operation can be realized.

  In this embodiment, the drum type washing machine is described as an example. However, in the case where water is supplied between the water tub 3 and the washing tub, the same applies to a vertical washing machine such as a pulsator stirring type or an agitator type. The effect is obtained. In the vertical washing machine, in order to uniformly permeate the water, a configuration may be adopted in which the laundry is uniformly wetted from the outer peripheral side of the laundry using a shower or the like provided outside the washing tub. Moreover, when rotating a washing tub during water supply, a laundry can be made hard to be damaged by making a pulsator and a washing tub move integrally.

Note that the means described in this embodiment causes hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like to cooperate. You may implement with the form of a program. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media, or distributing them using a communication line such as the Internet.

(Embodiment 2)
In the second embodiment of the present invention, the schematic configuration of the drum type washing machine is the same as that of the drum washing machine described in the first embodiment. The detailed description of the configuration uses the first embodiment. In the second embodiment, the heating means is configured by a heater 19 as a heating unit and a water cooling system as a dehumidifying unit. In addition, the dehumidifying part 9g is good also as an air cooling system. Hereinafter, the process will be described with reference to FIG.

  FIG. 5 is a flowchart showing water supply control of the drum type washing machine in the second embodiment of the present invention.

  First, when the laundry is put in and operation is started, water supply is started in the water supply process. Here, the rotating drum is rotated in one direction at a predetermined number of revolutions before the start of water supply (S1). The rotation number is a rotation number such as 60 r / min so that the laundry sticks to the inner peripheral wall of the rotation drum 4. By supplying water while rotating the rotating drum 4 at such a speed, it is possible to prevent the laundry from rolling and uniquely match the condition of how to wet the laundry. Further, even when the amount of laundry changes, the laundry can be wetted under similar conditions, so that the dependence on the amount of fabric can be suppressed, and the cloth quality can be detected with high accuracy. Further, the rotation start of the rotary drum 4 is not limited to before the start of water supply, and may be simultaneous.

  Next, the water supply valve 7b is opened (S2), and counting of the water supply time t is started, and water is supplied to the water tank 3 until the predetermined water level A is reached (S3). The predetermined water level A is a water level that can contact the outer peripheral side of the laundry in the rotating drum 4.

  The cloth quality detection is performed based on the time until the predetermined water level is reached. That is, when it is determined that the laundry fabric has high water absorption based on the water supply time t at the predetermined water level A, the setting content of the drying process is changed to increase according to the high water absorption. . Specifically, it is determined whether the water supply time t is shorter than the predetermined time T1 at the time when the predetermined water level A is reached (S4). If the water supply time t is shorter (YES in S4), the output of the heater 19 is set to be large and high. Ensuring sufficient drying performance (S5).

  Here, the predetermined time T1 is between the time from the start of water supply to the predetermined water level A when all are cotton towels, and the time until the predetermined water level A is reached when cotton and chemical fibers are mixed. It is time to set. For example, let T1 be the time required to supply water to a predetermined water level A when 70% of cotton is included in the total amount of laundry.

  On the other hand, when the control means 11a determines that the laundry fabric has low water absorption based on the water supply time t at the predetermined water level A, the setting content of the drying process is changed according to the low water absorption fabric. To do. Specifically, when the water supply time t is longer than the predetermined time T1 when the predetermined water level A is reached (NO in S4), it is determined whether the water supply time t is shorter than the predetermined time T2 (S6). (YES in S6), the heater output setting is left as it is (S7). Here, the predetermined time T2 is the time from the start of water supply to the predetermined water level A when all are chemical fibers such as polyester, and the time until the predetermined water level A is reached when cotton and chemical fibers are mixed. It is time to set between. For example, let T2 be the time taken to supply water up to a predetermined water level A when 70% of polyester is included in the total amount of laundry.

  If the water supply time t is longer than the predetermined time T2 at the time when the water level A reaches the predetermined water level A (NO in S6), the output of the heater 19 is set small so that the water does not become dry (S8).

  When the washing process is completed (S9), the rinsing process (S10), the dehydration process (S11), and the drying process (S12) are entered, the drying operation is performed for the drying time changed as described above. When the set drying time has elapsed (YES in S13), the drying process is finished and all the operations are finished.

  As described above, according to the present embodiment, the cloth quality detecting means for detecting the composition ratio of the cotton and the synthetic fiber in the clothes accommodated in the washing tub is provided, and the cloth quality detected by the cloth quality detecting means is the ratio of cotton. Is large, the water absorption is high, so that a large amount of heating is required to take away moisture during drying. On the other hand, when the fabric quality is large, the water absorption is low, that is, the necessary heating amount for drying is relatively small. Therefore, by setting the minimum output of the heater 19 according to the cloth quality, it is possible to realize an energy saving operation that suppresses the power consumption of drying without causing insufficient drying or uneven drying.

  In this embodiment, the drum type washing machine is described as an example. However, in the case where water is supplied between the water tub 3 and the washing tub, the same applies to a vertical washing machine such as a pulsator stirring type or an agitator type. The effect is obtained. In the vertical washing machine, in order to uniformly permeate the water, a configuration may be adopted in which the laundry is uniformly wetted from the outer peripheral side of the laundry using a shower or the like provided outside the washing tub. Moreover, when rotating a washing tub during water supply, a laundry can be made hard to be damaged by making a pulsator and a washing tub move integrally.

  As described above, the washing machine according to the present invention is provided with the cloth quality detecting means for detecting the composition ratio of the cotton and the synthetic fiber of the clothes accommodated in the washing tub, and the cloth quality detected by the cloth quality detecting means is the ratio of the cotton. If the fabric is large, the water absorption is high, so a large amount of heat is required to dry the water during drying. On the other hand, if the fabric quality is too large, the water absorption is low. Since the required amount of heating is relatively small, energy saving is achieved by setting the minimum required heating means output according to the fabric quality and reducing the power consumption of drying without causing insufficient drying or uneven drying. Driving can be realized.

1 Washing machine body 3 Water tank 4 Rotating drum (washing tank)
6 Motor (drive means)
7 Water supply means 7b Water supply valve 8 Drainage means 8b Drain valve 9c Blower (blower means)
9d Air supply path 9h Heating part 9i Compressor 10 Water level detection means 11 Control unit 11a Control means 11b Cloth quality detection means 19 Heater

Claims (6)

A washing tub having a plurality of through holes that are rotatable around a horizontal axis or a rotation axis inclined downward from the front side toward the back side, containing the laundry;
A water tank containing the washing tub;
Driving means for driving the washing tub;
Water supply means for supplying water to a space formed between the outer surface of the washing tub and the inner surface of the water tub;
Water level detection means for detecting the water level in the water tank;
Cloth quality detecting means for detecting the quality of the laundry by the speed at which the water accumulated in the water tub enters the inner surface side of the washing tub and is absorbed by the laundry,
A blowing means for sending circulating air to the washing tub;
Heating means for heating the circulating air;
Inputting the output of the cloth quality detection means, comprising a control means for sequentially controlling each step of washing, rinsing, dehydration, and drying,
The drum-type washing and drying machine in which the control means changes the output of the heating means in accordance with the cloth quality of the cloth quality detection means. The drum-type laundry dryer according to claim 1, wherein the cloth quality detecting means determines a ratio of fibers having high water absorption and fibers having low water absorption as a material constituting the laundry. The control means is configured such that, when the cloth quality detection means detects that the laundry is composed of fibers having low water absorption, the output of the heating means decreases as the ratio increases. Item 3. The drum type laundry dryer according to Item 1 or 2. The drum type washing and drying machine according to any one of claims 1 to 3, wherein the heating means is a heat pump cycle having a compressor and a heat exchanger. The said control means makes the frequency which drives the said compressor low, so that the said ratio becomes large, when the said fabric quality detection means detects that the ratio from which the said laundry is comprised from a fiber with low water absorption is large. 4. A drum-type washing and drying machine according to 4. A program for causing a computer to execute at least one means in the drum-type washing and drying machine according to any one of claims 1 to 5.