JPH0658884U - Fully automatic washing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevents imbalance of clothes in the washing and dewatering tub 1 and prevents abnormal vibration of the machine at the start of dehydration regardless of the quality of the fabric. The operation time of the process is shortened and the power consumption is further reduced. [Structure] A motor for driving a washing / dehydrating tank 1 or a stirring blade 2.
Motor 5 and motor control means 1 for controlling energization of this motor 5.
6, rotation speed detection means for detecting the rotation speed of the stirring blade 2 or the drive system, cloth quality determination means 20a for determining the cloth quality based on the output of the rotation speed detection means, and output of the rotation speed detection means. A cloth amount judging means 20b for judging the cloth amount on the basis and a signal control means 13 composed of a micro computer are provided, and the motor corresponding to the output of the cloth quality judging means 20a during the start-up operation of the dehydration process. It is possible to set a plurality of times when the intermittent energization to 5 is on and when it is off.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fully automatic washing machine that automatically performs a series of washing, rinsing and dehydrating processes.

[0002]

[Prior art]

 Conventionally, a fully automatic washing machine has a structure as shown in FIG. The operation will be described below. First, when the operation is started after setting the stroke content by the setting means 22, the stroke control means 21 operates the water feed valve 18 by the water feed valve control means 19 to reach the set water level in the washing stroke. After water is supplied, the motor control means 16 drives the motor 5 for a predetermined time at a constant reversal cycle according to the set water level to wash the clothes by the reversing motion of the stirring blades 2, and control the process in the dehydration process. The means 21 operates the drain valve 6 by the drain valve control means 17 to perform intermittent dewatering after draining, that is, the motor control means 16 intermittently energizes the motor 5 at a constant cycle according to the set water level to wash and dewater the tub. 1, the motor 5 is continuously energized by the main dehydration, that is, the motor control means 16 to continuously energize the motor 5 at a constant time according to the set water level, so that the washing / dehydrating tub 1 is constantly rotated. Shi The clothes were designed to be centrifugally dehydrated.

[0003]

[Problems to be solved by the device]

 However, in such a conventional configuration, the intermittent dewatering, which does not depend on the cloth quality at the start of dewatering, performs the intermittent operation of only turning the motor 5 on and off in a single time of a single cycle. The clothes such as towels, which are easy to wash, weigh more than twice as much as before washing after draining, and when this dehydration starts, the lumps of cloth tend to become uneven in the washing / dewatering tub 1 and become unbalanced, and the outer tub 3 becomes the outer frame of the machine. 10) The machine body is moved a lot, or the safety switch (not shown) is turned off at the time of start-up, making it impossible to proceed the series of steps from washing to dehydration. It had a problem of increasing noise. Also, clothing made of chemical fiber is relatively hard to contain water even after draining and evenly distributed even in the washing / dehydrating tub 1 at the start of dehydration relatively quickly. However, since the intermittent operation is performed only by turning the motor 5 on and off at a single number of times in a single cycle, the motor 5 is intermittently activated more than necessary and the series of steps from washing to dehydration is performed. It had the problem of increasing the operating time of the vehicle and further increasing the power consumption.

In view of the above problems, the present invention aims to uniformly distribute the clothes in the washing and dehydrating tub 1 at the time of dehydration rising regardless of the cloth quality, prevent imbalance, and prevent abnormal vibration of the machine body. The purpose of 1. The second purpose is to shorten the operation time of a series of steps from washing to dehydration and to reduce power consumption.

[0005]

[Means for Solving the Problems]

 The first means of the present invention for achieving the above first object is a motor for driving a washing / dehydrating tub or a stirring blade, and a motor control means for controlling energization of this motor. A rotation speed detection means for detecting the rotation speed of the stirring blade or the drive system; a water supply control means for controlling the water supply in the washing / dehydrating tub; and a water level detecting unit for detecting the water level in the washing / dehydrating tub. A first detection step of operating the stirring blade for a predetermined time before supplying water into the washing / dehydrating tank, and a second detection step of operating the stirring blade for a predetermined time after supplying water to the washing / dehydrating tank to a predetermined level. A cloth quality judging means for judging the cloth quality based on the stroke and the output of the rotation speed detecting means, a cloth quantity judging means for judging the cloth quantity based on the output of the rotation speed detecting means, and a micro computer. Signal control means consisting of data, washing process, rinsing process, dehydration process A stroke control means for controlling the operation is provided, and at the time of the start-up operation of the dehydration stroke, a plurality of on and off times of intermittent energization to the motor can be set according to the output of the cloth quality judging means. It will be. The second means of the present invention for achieving the above-mentioned second object is, in addition to the above-mentioned first means, the output of the cloth quality judging means and the output of the cloth quantity judging means during the start-up operation of the dehydration process. Correspondingly, the number of times the intermittent energization of the motor is turned on and off is set to be plural.

[0006]

[Action]

 According to the above-mentioned first means, during the start-up operation of the dehydration process, a plurality of ON and OFF times of intermittent energization to the motor are set according to the output of the cloth quality judging means. Even if the clothes are made of chemical fiber, cotton that is relatively hydrated, or clothes that are made of towel, it can be smoothly distributed in the washing and dehydration tank to smoothly start the dehydration.

According to the above-mentioned second means, the start-up operation of the dehydration process is set to correspond to the output of the cloth quality determining means, and a plurality of ON and OFF times of intermittent energization to the motor are set. In addition to the above, the number of times that the motor is intermittently turned on and off is set to correspond to the output of the cloth quality judgment means and the output of the cloth quantity judgment means. By controlling the energization of the motor according to the amount, the operating time required for a series of steps from washing to dehydration can be shortened and the power consumption can be reduced.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. First, the structure of the fully automatic washing machine according to the first embodiment of the present invention will be described with reference to FIG. Reference numeral 1 denotes a washing / dehydrating tank having a large number of holes 1a and a stirring blade 2 rotatably arranged at the center bottom. 3 is an outer tub containing the washing / dehydrating tub 1, a substrate 4 is fixed to the outer bottom of the outer tub 3, and a drive motor 5, a drain valve 6, a drive mechanism 7, etc. are arranged. The outer edge of the outer tub 3 is suspended from the upper corners of the outer frame 10 via a vibration isolator 8 and a suspension rod 9. The rotation speed of the drive mechanism unit 7 is detected by the rotation speed detector 11, and the output of the rotation speed detector 11 is input to the signal control means 13 via the rotation speed detection control unit 12. The output of the water level detector 14 that detects the water level in the outer tub 3 is input to the signal control means 13 via the water level detection control unit 15. The signal control means 13 is composed of a microcomputer, and has a motor control means 16 for controlling the energization of the motor 5, a drain valve control means 17 for controlling the opening / closing of the drain valve 6, and a washing / dehydrating tank 1. A command signal is output to the water supply valve control means 19 of the water supply valve 18 that supplies water to the water. Further, the signal control means 13 functions as the cloth quality detecting means 20a and the cloth quantity detecting means 20b for judging the cloth quality and the cloth quantity based on the output data of the rotation number detecting control section 12, and the function of the stroke control means 21. Have the means. These functional means are realized by the program of the microcomputer. Here, the stroke control means 21 performs the washing, rinsing, and dewatering strokes based on the operation contents automatically set by the cloth quality detecting means 20a and the cloth amount detecting means 20b or the setting contents from the setting means 22. It is executed under the control of various control means.

Next, a specific operation example will be described centering on FIG. 2 and with reference to FIGS. 1 and 3. First, when clothes are put into the washing / dehydrating tub 1 (step 31) and the start switch for starting operation is pushed (step 32), the motor control means 16 is instructed by the signal control means 13. Supplies the electric power to the motor 5 with the commercial power supply waveform 2/3 cut. With this electric power, the motor 5 rotates at a speed of about 40% of the normal speed (step 33), and the stirring blade 2 is rotationally driven through the drive mechanism section 7. The rotation of the stirring blade 2 is detected by the rotation detector 11 via the drive mechanism unit 7 (step 34), the signal is sent to the rotation number detection control unit 12, and the motor 5 is turned on. It is added separately for the time and when it is off. On the other hand, the rotation of the motor 5 is repeated 3 times in total by a command from the signal control means: 0.3 seconds for right rotation, 0.3 seconds for rest, 0.3 seconds for right rotation, and 0.3 seconds for rest. . 6 seconds. As a result, when the amount of cloth is small, the number of revolutions of the motor 5 when it is on is almost constant, and inertial rotation is observed when it is off, and the correlation with the amount of cloth is large. When the amount of cloth is large, the rising time when the motor 5 is turned on is slow and almost no inertial rotation is observed. This delay in rising has a large correlation with the amount of cloth. Therefore, when the amount of cloth is small, the number of revolutions at the time of off is detected, and when the amount of fabric is large, the number of revolutions at the time of on is detected. Based on this characteristic, the rotation speed detection control unit 12 separately integrates the motor 5 when the motor 5 is on and when it is off, and the data is sent to the signal control means 13 for the first time. It is used for the second level judgment (steps 35 to 37). Here, the set value used when determining the level is experimentally determined based on the above characteristics. If the integrated value X at the time of off is X> N1 (step 35), the data X is sent to the signal control means 13 and stored (step 39) as being less than the medium amount of cloth. If X <N1 (step 35), the amount of cloth is judged to be more than a large amount, and the process proceeds to the next judgment (step 36). If the integrated value Y when the motor 5 is on is Y <N2, Since the amount is too large, the overload is informed (step 37), and the user is informed to take out the clothes (step 38). Next, when the above-mentioned data X or Y is taken into the signal control means 13, a water supply instruction is issued from the signal control means 13 to the water supply control means 19 and the water supply valve 18 is opened to start water supply (step 40). When the water level reaches a predetermined level, the water supply valve 18 is closed to stop the water supply, and the motor 5 is driven by normal rotation (step 41) to rotate the stirring blade 2 intermittently for a predetermined time. This rotation speed is detected by the rotation detector 12 via the drive mechanism section 7 (step 42), and the integrated value of the detected rotation speed of the motor 5 during the off period is set to Z for the next calculation. To use. The data Z is data relating to the weight of the supplied water. Next, the data X or Y of the amount of cloth when the cloth is dry and the data Z of water supplied are calculated using an empirical formula (step 43) to judge the weight and quality of the cloth ( Step 44). Based on the result of this judgment, the stroke control means 21 sets the optimum water level, the washing water flow, the washing time, the rinse water flow, the rinsing time, and the motor 5 is turned on and off at the start of dehydration. After setting the time and the dewatering steady operation time (step 45), the water supply command is issued from the signal control means 13 to the water supply control means 19 and the water supply valve 18 is opened to supply water (step 45). 46) and when the water level reaches a predetermined level, the water supply valve 18 is closed to stop the water supply, and the motor 5 is driven by normal rotation (step 47) to invert the stirring blade 2 for a predetermined time with a predetermined water flow. The laundry operation begins. After the washing operation is completed, a drainage command is issued from the signal control means 13 to the drainage control means 17, the drainage valve 6 is opened and drainage is started (step 48), and at the same time, the clutch (not shown) of the drive mechanism section 7 is switched and washed. The dewatering tank 1 is ready to be driven. After the drainage is completed, the signal from the signal control means 13 controls the turning on and off of the motor 5 according to the cloth quality judged by the motor control means 16 so that the washing / dehydrating tub 1 is rotationally driven. So-called intermittent dehydration (step 49), which is intermittently performed for a predetermined time, is executed to evenly distribute the water-containing clothes in the washing / dehydrating tub 1, and the motor control means 16 further controls the continuous energization of the motor 5. Then, the washing and dewatering tank 1 is continuously driven to rotate (step 50), and the hydrated clothes are centrifugally dehydrated. Then, at the same time as the dehydration is completed, the clutch (not shown) of the drive mechanism section 7 is switched, and the stirring blade 2 is in a state in which it can be driven to rotate, and water supply is started (step 51). Then, a rinsing step is performed for the stirring time (step 52), and thereafter, similarly, the operation is executed according to the step control means 21 until the final dehydration (steps 53 to 60). Here, the intermittent operation during intermittent dehydration is controlled by energization by the on / off time of the motor 5 as shown in Fig. 3, and the on-time is relatively long for chemical fibers containing little water. The off time is short and the rotation is well started up. On the other hand, the weight of the cotton, towel cloth, etc., which is more than doubled after drainage because it easily contains water, has a relatively short on-time and a long off-time, so the cloth is gradually washed without unevenness. In addition, the ring is uniformly distributed along the inner peripheral surface of the dehydration tank 1 to prevent an unbalanced state, prevent the outer tank 3 from hitting the outer frame 10, and smoothly start dehydration to allow steady rotation. Also reduces vibration and noise.

Next, a second embodiment of the present invention will be described by focusing on FIG. 4 and referring to FIGS. First, after putting the clothes into the washing / dehydrating tub 1 (step 31) and then pressing the start switch for starting the operation (step 32), the first detection process (steps 33 to 39), the second detection After the steps (steps 40 to 42), the data X or Y of the amount of cloth when the cloth is dry and the supplied data Z are calculated using an empirical formula (step 43), and the cloth weight is calculated. And the cloth quality is determined (step 44). Based on this determination result, the stroke control means 21 sets the optimum water level setting, washing water flow setting, washing time setting, rinsing water flow setting, rinsing time setting, turning on the motor 5 at the start of dehydration, The off time is set, the motor 5 is turned on and off at the start of spin-drying, the number of off-cycles is set, and the steady-state spin-drying operation time is set (step 45). According to these settings, the washing process (steps 46 to 47) After the drainage (step 48) is completed, the signal control means 13 issues a command to control the on / off of the motor 5 in accordance with the cloth quality determined by the motor control means 16 for washing. The motor control means 16 is provided while performing the so-called intermittent dehydration (step 49) in which the rotation drive of the combined dehydration tub 1 is intermittently performed for a predetermined period of time to uniformly distribute the water-containing clothes in the combined cleaning and dehydration tub 1. Is a continuous communication of motor 5 The control was carried out the washing and dewatering tank 1 was continuously rotationally driven (steps 50) water clothing allowed to centrifugal dehydration. After that, the operation is performed from the rinse step to the final dehydration step (steps 51 to 60). In the intermittent operation during intermittent dehydration, the number of times motor 5 is turned on and off is set for the cloth quality and amount as shown in Fig. 5, and when the amount of cloth is small, it is turned on and off. The number of repetitions of is small, and chemical fibers with a low water content are easy to contain water. For cotton, towels, etc., the number of repetitions of ON and OFF is set to be small so that the motor 5 is not activated more than necessary. Therefore, the operating time can be shortened, and the number of times of starting the motor 5, which consumes a large amount of power, is minimized, so that the amount of power consumption can be reduced.

[0011]

[Effect of device]

 As described above, according to the present invention, since a plurality of on / off times of intermittent energization to the motor are set according to the output of the cloth quality determining means at the time of dehydration start-up, the chemical fiber From uniform clothes to cotton and towel cloth are uniformly distributed in the washing and dehydration tubs to prevent unstable unbalanced conditions, to prevent the outer tub from hitting the outer frame of the machine, and to smoothly dehydrate. Vibration and noise can be reduced even when dehydration is started and the main dehydration is started. In addition, the start-up operation of the dehydration process corresponds to the output of the cloth quality determination means, and in addition to setting multiple times for the on and off times of intermittent energization to the motor, Depending on the output and the output of the cloth quantity judging means, the number of times the motor is intermittently turned on and off is set multiple times, so fine-tuned operation control is performed according to the cloth quality and quantity. The operation time required for a series of steps from washing to dehydration can be shortened, and power consumption can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram of a fully automatic washing machine according to a first embodiment of the present invention.

FIG. 2 is a main part flow chart showing the operation of the fully automatic washing machine.
To

FIG. 3 is a diagram of motor on / off time during intermittent dehydration for the cloth quality of the same automatic washing machine.

FIG. 4 is a main part flowchart showing the operation of the fully automatic washing machine according to the second embodiment of the present invention.

FIG. 5 is a diagram showing the number of motor on / off cycles during intermittent dehydration for the cloth quality of the fully automatic washing machine.

FIG. 6 is a block diagram of a conventional fully automatic washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Washing / dehydrating tank 2 Stirring blade 5 Motor 11 Rotation speed detector 12 Rotation speed detection control section 13 Signal control means 14 Water level detector 15 Water level detection control section 16 Motor control means 20a Cloth quality detection means 20b Cloth amount Detection means

Claims (2)

[Scope of utility model registration request] 1. A motor for driving a washing / dehydrating tub or a stirring blade, a motor control means for controlling energization of the motor, and a rotation speed for detecting the rotation speed of the stirring blade or the drive system. Detecting means, water supply control means for controlling water supply in the washing / dehydrating tub, water level detecting unit for detecting water level in the washing / dehydrating tub, and the stirring blade before water supply in the washing / dehydrating tub Based on the output of the rotation speed detection means, a first detection step of operating for a predetermined time, a second detection step of operating the stirring blade for a predetermined time after supplying water into the washing / dehydrating tank to a predetermined level A cloth quality judging means for judging, a cloth quantity judging means for judging the cloth quantity on the basis of the output of the rotation speed detecting means, a signal control means composed of a microcomputer, a washing step, a rinsing step, and a dehydrating step. Equipped with a stroke control means for controlling the operation, the start of the dehydration stroke In operation, a fully automatic washing machine in which a plurality of on / off times of intermittent energization to the motor are set according to the output of the cloth quality determining means. 2. The mode according to the output of the cloth quality judging means and the output of the cloth quantity judging means at the start-up operation of the dehydration process.
The fully automatic washing machine according to claim 1, wherein a plurality of times of turning on / off the intermittent energization of the machine is set in plural ways.