TWI284161B - Washing machine - Google Patents

Abstract

A washing machine in accordance with the present invention can maintain the outer peripheral wall under a clean state by washing off foreign matters and fouling adhering to the outer peripheral wall of a rotating drum with a strong water stream generated by rotating the rotating drum at a high speed in a washing machine which performs washing, rinsing and spin-drying in the rotating drum having the rotating shaft in an approximately horizontal direction or an approximately tilted direction. For this washing machine, the rotating drum having the rotation axis in the approximately horizontal direction or the approximately tilted direction is internally contained in a water receiving tub which is elastically supported by a washing machine main body. The washing machine is constituted in such a manner that electricity is fed to a motor which drives the rotating drum by an inverter having switching elements, and the driving of the motor is controlled by controlling the switching elements of the inverter by a controlling means. The controlling means performs a rotating drum washing process for which the rotational number of the rotating drum is controlled in such a manner that the rotational number may become a first rotational number from a rotational number by which laundry sticks to the rotating drum to a rotational number being at a dehydration regular rotational number or lower, under a state that water is accumulated in the water receiving tub.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing, rinsing, and dehydrating in a rotary drum in which a central axis of rotation is located in a substantially horizontal direction or a large oblique direction.

L·Jttr J BACKGROUND OF THE INVENTION 10 15 20 This machine is capable of accommodating laundry and rotating the money rotating drum (four) around the horizontal axis in the sink, and forming a switch on the front side of the sink to be opened and closed by the casing The entrance and exit of the clothes, the washings are thrown into the rotating drum from the entrance and exit of the clothes, and the water injection and drainage in the water tank are carried out by the Qiu system to perform the steps of washing, rinsing and dehydrating. =, because the air can be discharged from the water (4) and passed through the dehumidification unit and the heating unit to return to the trough-like circulation path, so that there is a washing and drying machine that can make the crops spin. At present, there are many washing machines of the genre type (for example, refer to the patent document 〇. [Specialized U-patent U-Japanese patent phase publication special Kaiping (four) Xian% Hu (dire 3 to 4 pages, 1st picture) [Explanation of inventions in the invention Problem to be solved: In the above-mentioned conventional structure, when the foreign matter such as the lotion or the outer peripheral wall of the rotary drum which is rotatably wrapped in the water tank is arbitrarily removed, it is easy to remove eight in the 4,416,161, especially due to the detergent residue. The oleophilic substance which is high in dryness' d adheres to the outer wall of the rotating drum, so the viscosity is high, so it often remains. $ The attached foreign matter or dirt _ dry will harden and become difficult In the case of loosening, if dirt adheres, it will easily lead to the continuous attachment of the heart. In addition, the detergent residue will breed microorganisms or bacteria, and the humidifier in the south humidity will promote the growth of bacteria, which is easy to produce. Therefore, it is necessary to adopt a method which can quickly remove foreign matter or dirt adhering to the outer peripheral wall of the rotating drum. In order to solve the above-mentioned conventional problems, the object of the present invention is to use a rotating drum to rotate at a high speed. The strong water flow generated during the rotation washes away the foreign matter or dirt adhering to the residue of the rotating drum, so as to maintain the outer peripheral wall in a clean state. ', means for solving the problem, in order to achieve the above object, the present invention The washing machine is provided with a rotating drum having a rotating central axis in a substantially horizontal direction or a substantially oblique direction in a water tank elastically supported by the washing machine body, and is supplied with electric power to drive the rotation by switching (10) having a switching element. a motor of the drum, wherein the switching element of the inverter is controlled by a control device to control the driving of the motor, and the washing process is performed by the secret washing machine, and the control device is in the rotating drum washing stroke In the state in which the water is accumulated in the water tank, the rotation of the rotating drum is numerically controlled to be the first predetermined number of revolutions in which the laundry is attached to the same number of revolutions as before, and is lower than the normal number of dehydration revolutions. 1284161 By using the strong water flow generated by rotating the rotating drum at a high speed, it is possible to wash away the residue of the lotion attached to the outer wall of the rotating drum. Or the dirt, and the outer peripheral wall can be maintained in a clean state, and can be a hygienic washing machine. 5 Effect of the Invention The washing machine of the present invention can be used to wash and rotate the strong a water produced by rotating the rotating drum at a high speed. The washing agent on the outer wall of the drum is ruined by foreign matter or dirt, and the external position can be maintained in a clean state. L Embodiments 10 The best mode for carrying out the invention The washing machine of the invention includes: a rotating drum, the center axis of rotation is located a substantially horizontal direction or a substantially oblique direction; the water tank is elastically supported on the body of the washing machine and encloses the rotating drum; the motor 1 is used to drive the aforementioned roller; the commutator has a power supply 15 is a switching element of the motor; and a control device for controlling the switch 7L of the inverter to control the driving of the motor, and the washing machine can perform a rotating drum washing stroke, and the rotating drum washing stroke In the state where the control device stores water in the water tank, the rotation of the rotating drum is numerically controlled to make the strip The ith predetermined number of revolutions (for example, 400 r/min) in which the number of revolutions in the rotary drum is 2 〇 or more and lower than the normal number of spin cycles, so that the strong water flow generated when the rotary drum rotates at a high speed can be used to wash away the adhesion. In the outer wall of the rotating drum, the foreign matter such as the lotion or the scalp on the peripheral wall of the rotating drum can maintain the outer peripheral wall in a clean state, and at the same time, the foreign matter such as the washing residue or the dirt can be prevented from adhering to the laundry in the rotating drum again. According to a second aspect of the invention, the control device controls the respective strokes of washing, rinsing, and dehydrating, and performs the rotating drum washing stroke in the dehydrating stroke. Therefore, in the state where the water is accumulated in the water tank 3 after the laundry is sufficiently rinsed, the rotation of the rotary drum is numerically controlled to, for example, 5 4 〇〇r/min, thereby solving the lotion of the lotion and causing a lot of foam. And it becomes a state in which the bubble is stagnant and it is impossible to increase the number of revolutions of the rotating drum. According to a third aspect of the present invention, in the first or second aspect of the invention, the current detecting means for detecting the electric current of the motor is further provided, and the control means inputs a signal from the current detecting means for controlling the current The motor causes the current of the motor 1 to be below a predetermined value. Therefore, even when the amount of the laundry is large or the ratio of the laundry having a high water content is high, or when the load of the motor is increased when the amount of water accumulated in the water tank is large, since the current flowing into the motor can be restricted, the current flowing into the motor can be restricted. It can suppress abnormal heat generation of the motor and improve safety. The invention according to any one of the first to third aspects of the present invention, further comprising a drainage device for discharging water in the water tank to the outside of the machine, and wherein the control device is in a rotary drum washing stroke The above-mentioned drainage device is set to a closed state. Since the water discharged from the laundry during the washing process of the rotary drum can be accumulated, the water can be accumulated in the water tank 3 without a special structure, and a low-cost and sanitary washing machine can be realized. According to a fifth aspect of the invention, in the first aspect of the invention, the water supply device for supplying water to the water tank is further provided, and the control device is configured to perform the rotary drum cleaning stroke The water supply device operates to supply water into the front water tank. Thereby, even if the amount of laundry is small and the amount of water discharged from the laundry is small, water can be surely accumulated in the water tank, and 1284161 can realize a low-cost and sanitary washing machine. According to a sixth aspect of the invention, in the fifth aspect of the invention, the washing apparatus for detecting the amount of laundry in the rotating drum is further provided, wherein the control device sets the amount of laundry detected by the laundry amount detecting device. The operation time of the aforementioned water supply device. Therefore, it is not affected by the amount of laundry, and a substantially equal amount of water can be accumulated in the water tank, and a low-cost and sanitary washing machine can be realized. In the invention according to any one of the first to fifth aspects, the control device is configured to sequentially perform the second predetermined step of increasing the speed of the rotating drum from a substantially stationary state to 1 〇 lower than the first predetermined number of revolutions. The number of revolutions is such that the laundry is attached to the laundry balance stroke in the rotating drum, and the washing drum balance determining stroke is determined substantially at the second predetermined number of the laundry balance state. Therefore, the laundry balance state can be changed by gradually applying the laundry to the inner wall of the rotary drum during the laundry balance stroke, and the rotation is increased to the first predetermined number of revolutions only when the laundry balance is good. The drum is cleaned and the abnormal vibration of the rotating drum or the water tank is avoided by the unbalance of the laundry, and the safety of the product can be improved. According to a seventh aspect of the invention, in the seventh aspect of the invention, the control device restarts from the washing balance stroke when the laundry balance state is determined to be poor in the laundry balance determination stroke. Therefore, after the rotating drum is temporarily stopped to peel off the laundry, the laundry is gradually attached to the inner wall of the crucible in the laundry balance stroke, thereby changing the balance of the laundry, and only When the balance of the laundry is good, the speed is increased to the second predetermined number of revolutions to perform the rotary drum washing stroke, and the unbalance of the laundry is prevented to cause abnormal vibration of the rotating drum or the water tank 9 1284161, and the safety of the product can be improved. Sex. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Further, the present invention is not limited to the embodiment. As shown in Fig. 2, the rotary drum 1 is formed in a cylindrical shape with a bottom, and a plurality of water-passing holes 2 are provided in the outer periphery of the whole portion 5, and are rotatably disposed in the water tank 3 -. A rotation axis (rotation center axis) 4 of a substantially oblique direction is provided at the center of rotation of the rotary drum 1, and the axial direction of the rotary drum 1 is disposed to be inclined downward from the front side toward the back side. The rotary shaft 4 is coupled to a motor 5 attached to the back surface of the water tank 3, whereby the rotary drum 1 can be driven to rotate in the forward and reverse directions. φ 10 A plurality of projecting plates 6 are provided on the inner wall surface of the rotary drum 1. The opening portion of the upward inclined surface provided on the front side of the water tank 3 can be freely opened and closed by the cover body 7, and by opening the cover body 7, the laundry can be put into the rotary drum 1 through the clothes inlet and outlet 8 or Take it out of it. Since the lid body 7 is provided on the upwardly inclined surface, it is not necessary to bend over 15 when the laundry is put in or taken out. The water tank 3 is slidably suspended from the washing machine body 9 by a spring body (not shown), and one end of the drain passage 10 is connected to the lower portion of the water tank 3, and the other end of the drain passage 10 is connected to the drain valve ( The draining device 11 is for discharging the shampoo water in the water tank 3. The water supply valve (water supply device) 12 supplies water to the water tank 3 through the -20 water supply passage 13. A drain groove 14 is formed at a lowermost portion of the water tank 3 and in a direction perpendicular to the rotation direction of the rotary drum 1, and as shown in Fig. 3, the side wall 14a of the water drain groove 14 is formed perpendicularly to the water flow direction. In the direction. Further, in the present embodiment, the center of rotation of the rotary drum 1 is inclined toward 10 1284161 H = (four) axis 4', and the axial direction of the rotary drum 1 is disposed so as to be inclined downward from the front side toward the moon surface side, but The rotary shaft 4 can be arranged in a substantially horizontal direction in the rotation of the rotary turret, and the drum can be rotated! The axis direction is set in a substantially horizontal direction. 10 15 20 The medium/system 15 is configured as shown in Fig. 1 and has a microcomputer-controlled device 16 that can control the operation of the motor 5, the drain valve 2, the water supply _, etc. , rinsing and dehydration - even serial range. When the control device 16 inputs (4) from the input device 17 such as the operation mode, and the information from the display device is used to make the user know, and the setting device is set by the input device. The temple receives the water level from the water level for detecting the water level in the water tank 3, and the bedding material of 19, and the like, and controls the operation of the drain valve, the water supply valve 12, and the like through the load driving device 2G to perform the washing operation. The 匕f control unit 16 controls the commutation through the drive circuit η to rotationally control the motor 5 based on information from the sorrow position detecting means 21 for detecting the rotor of the motor 5. The motor 5 is a brushless DC horse*, and the motor/motor 5 is composed of a stator having a 3-phase coil and a rotor having 2 poles on a 1 turn. The stator is the first one to constitute a 3-phase coil. The coil +, the coil 5b, and the third coil 5c are formed around a core having a slit. The commutator 23 is composed of a power transistor (IGBT) and a reverse-conducting diode. Further, the series circuit of the (4)th element 仏 and the 2/off element 23b, the third opening element 23c, and the fourth switching element are formed, and the series circuit of each switching element is connected in parallel to the state of 11 1284161. The electric correction (4) is the input terminal, and i| = !:, and the two open (four) / knife-finished wheel terminals of the series circuit constituting the switching element. The wheel terminal is connected to the u-terminal V terminal and the W terminal of the 3-phase coil, and the 8 terminal, the v terminal, and the w terminal are respectively set to a positive voltage by the opening/closing combination of the two switching elements constituting the switching element circuit. , zero voltage and release of three states. 10

The opening/relationship of the switch member is controlled by the control device i 6 based on information from the three position detecting devices 21a, 21b, 21A constituted by the Hall ic. The position detecting devices 21a, 2bb, 21c are placed on the stator at intervals of a phase angle of 12 , and are opposed to the permanent magnets of the rotor. The three position detecting devices 21a, 21b, and 21c output pulse signals at intervals of a phase angle of 120 degrees, respectively, between one rotation of the rotor. When the control device 16 detects that the signal state 15 of any of the three position detecting devices 21a, 21b, 21c has changed, according to the signals of the position detecting devices 21a, 21b, 21c,

Changing the on/off state of the switching elements 23a to 23f, whereby the U terminal, V

The terminal and the W terminal are set to have three states of positive voltage, zero voltage, and release, and are energized to the first coil 5a, the second coil 5b, and the third coil 5c in the stator to form a magnetic field to rotate the rotor. In addition, the switching elements 23a, 23c, and 23e are respectively controlled by pulse width modulation (PWM), for example, controlling the high and low energization ratios at a repetition frequency of 10 kHz to control the number of revolutions of the rotor, and each time three positions are detected. When the signal state of any of the devices 21a, 21b, 21c changes, the control device 16 detects the cycle, calculates the number of revolutions of the rotor from the cycle', and performs pulse width modulation on the switching elements 23a, 23c, 12 1284161 23e. Control to achieve the set number of revolutions. The current detecting device 24 is composed of a resistor 25 connected to the input terminal of the inverter 23 and a current detecting circuit 26 connected to the resistor 25, and is used for detecting the input current of the inverter 23. That is, the current of the motor 5 is converted into a voltage signal, and the voltage signal is rotated into the control device 16. Further, the control unit 16 performs A/D conversion on the input voltage signal, and performs arithmetic processing as digital data to control the motor 5 so that the current of the motor 5 is equal to or lower than a predetermined value. When the motor 5 is a brushless DC motor, since the torque is approximately 10 proportional to the input current, the input current value of the inverter 23 can be detected by the current detecting circuit % connected to the resistor 25 to detect the motor. 5 torque. The strip amount detecting means 27 can detect the amount of the laundry in the rotary drum 1 and detect the rotary drum 1 based on the signal 'from the current detecting means 24 when the rotary drum 1 is rotated to a predetermined number of revolutions (for example, 200 r/min) The amount of laundry 15 inside. The commercial power source 28 is connected to the commutation cryo 23 through a DC power conversion device including a diode bridge circuit 29, a choke coil 3, and a smoothing capacitor 31. However, this is only one example, and the configuration of the brushless DC motor 5, the configuration of the inverter 23, and the like are not limited thereto. 20, as shown in FIG. 4, the input setting means 17 includes a washing time setting switch 17a for setting the washing time, a rinsing frequency setting switch 17b for setting the number of rinsing times, and a dehydrating time setting switch 17 for setting the dehydration time. . Operation mode setting switch 17d, start/stop switch 1 & power-on gate closing 17f and power-off switch 17g, etc. Further, the display device μ includes a washing unit 13 1284161 display portion 18a and a rinsing number display portion igb The dehydration time display unit i§c, the mode setting display unit 18d, the washing dose display unit 18e, the operation remaining time display unit 18f, the digital display unit 18g, and the like. Here, in the rotating drum washing stroke, the control device 16 controls the rotation of the rotating drum 1 to be higher than the number of revolutions of the washing object attached to the rotating drum 1 in a state where water is accumulated in the water tank 35. The predetermined number of revolutions (for example, 400 r/min) lower than the normal dehydration rotation number, and the rotary drum washing stroke is performed in the dehydration stroke. Further, the control device 16 opens the drain valve 10 in the rotary drum washing stroke, and operates the water supply valve 12 in the rotary drum washing stroke to supply water into the water tank 1. At this time, according to the amount of laundry detected by the laundry amount detecting device π, as shown in (Table 1), the operation time of the water supply valve 12 is set to 0 [Table 1] The amount of the washing material is supplied at a water supply time of 0 to 2 kg 1 5 seconds 2 ~4Kg 10 seconds 4 to 6 Kg 5 seconds 6 to 8Kg 0 seconds 15 Further, the control device 16 sequentially increases the speed of the rotary drum 1 from a substantially stationary state to a first predetermined number of revolutions (40 〇r/min). a second predetermined number of revolutions (for example, 90 r/min) to make the laundry adhere to the laundry balance stroke in the rotary drum 1, and a laundry balance determination stroke for determining the laundry balance state at substantially the second predetermined number of revolutions Thereafter, the rotary drum washing stroke is performed, and when it is determined that the laundry balance state is poor during the laundry 20 balance determination stroke, the laundry balance stroke is restarted. 14 1284161 In the above configuration, the operation will be described with reference to FIGS. 5 to 7. If the washing 10 is put into the rotary drum 1, and the power-on switch 17f is activated, and the mode setting switch I7d selects the input operation mode according to the type of the laundry, then the start/stop switch 17e is activated to start the operation. First, the control device 16 rotates the rotary drum 1, and detects the amount of laundry in the rotary drum 1 by the laundry amount detecting device 27. Then, the washing amount is displayed on the washing amount display portion 18e according to the detected amount of laundry and The digital display unit 18g. Then, after the displayed washing amount is put into the lotion inlet (not shown) provided in the water supply passage 13, the remaining time until the end is displayed on the remaining time display portion 18f and the digital display portion igg.

15 20 Next, the washing stroke is started. First, the water supply valve 12 is activated, and the washing agent from the lotion donor is dissolved through the water supply passage 13 side, and the water is supplied to the water tank 3, and the water is supplied to the predetermined temperature. The water level, then, drives the motor 5 to rotate the rotary drum i to perform the wash cycle. By rotating the "rotation of the cylinder 1", the agitation operation can be repeated, whereby the projection plate 6 provided on the inner wall surface of the rotary drum is put into the rotary turret in the direction of rotation (1) the workpiece is lifted up and the washing is performed from Raised (four) #height position drop, ^ This can be used to wash and wash the washing, and wash it. When the woman is washing the sputum, the drain _ is opened, and the drain __ is drained, and the washing liquid contained in the laundry is dehydrated by the rotation of the rotary drum i at a high speed. Then, the feed water is turned on to supply water to perform a rinse stroke. _ The rinsing stroke towel is also repeated by the _ of the (4) cylinder 1; the rotating drum 1 (10) is purely protruding and her 6 is lifted up and down (four) mixing action. ―

15 1284161 After rinsing =, the dehydration stroke of the rotating drum is idling. Right, start the dehydration process by step 1 of Fig. 5, and initialize the data in 101 (Ν = ), 乂 ride u, J. Then, in step 102, the gland 5 drain valve 11 is set to the state of the phase, and the good lion 3 Washing_Ping 1 Drive motor 5, taking the surface to rotate _ the balance of the laundry is wide - the rotating drum 1 is increased in speed to 90r/min in the forward direction. 10 reaches the current. Here, the kite is illustrated in detail in Figure 6. In addition, in Fig. 6, the curve a c indicates the number of rotations of the drum when the load of the motor 5 is light, and the motor power: & and the curve _ respectively indicate that the load of the motor 5 is heavy.

It thunder broadcast. The double-length horse, as shown in Fig. 6, drives the motor 5 so that the number of revolutions of the rotary roller m increases at the time gate u to the input/min, and the number of revolutions of the rotary roller is controlled at 4 〇r between the time coffees 2 /min, and fixed the number of revolutions of the rotating drum, and then, when the speed is up to t3, the number of revolutions of the rotating drum is increased to the second predetermined number of revolutions 15 (90r/min), so that the laundry is attached to the rotation. Inside the drum 1. That is, by rotating

The rotary drum 1 is gradually accelerated from a substantially stationary state to a second pre-determined rotation = (90 r/min). The centrifugal force is greater than the gravity acting on the faucet to cause the laundry to adhere to the rotary drum 1. For example, the number of revolutions of the rotary drum 1 is stably controlled at 4 〇r/min between the first 5 seconds, then, the acceleration is 3 r/min per second, 20 and the number of revolutions of the rotary drum 1 is controlled at 9 〇r/ Min. Next, in the step of the step of determining the washing balance balance (between times t3 and t4 in Fig. 6), the balance of the laundry in the rotary drum 1 at the second predetermined number of revolutions (9 〇r/min) is determined. status. When the number of revolutions of the rotary drum i is stably maintained at the operation/min, the fluctuation of the number of revolutions is measured in a state where the voltage applied to the motor 5 is fixed at a voltage of 16 1284161, and when the number of revolutions is large, the determination is made. The laundry is in a poorly attached state and the balance state is not good. When it is determined in the step that the balance state is bad, then the step ι 〇 5 is performed and the rotating drum is stopped by the step 106, and i is added to n 5 in the step 〇7, then the process returns to the step 103, and the cleaning is performed. The balance stroke is restarted, and the action of the lion 7 is repeated from step 1G3. Here, when it is determined that the number of times the detergent balance state is defective in the washout balance determination stroke reaches the predetermined number of times (four times), that is, in step 105, _=4, the process proceeds to step ι8, and an abnormality notification is performed. . 1. When it is determined in step 104 that the equilibrium state is good, the number of revolutions of the rotating drum 加速 is accelerated from the second predetermined number of revolutions (90 r/min) between the times t4 and t5 of the sixth drawing in the step 1〇9. Up to 150 r/min, and the number of revolutions of the rotary drum 1 was stably controlled at 15 〇r/min between time and ratio (between 1 minute). Thereby, the laundry can be dehydrated to a certain extent to reduce the load caused by the horse I5 up to 5 after the number of revolutions is increased. Then, the process proceeds to step 110, and the number of revolutions of the rotary drum 1 is accelerated from 15 〇r/min to the first time between times t6 and t72 of Fig. 6! The number of revolutions (40 〇r/min) is entered, and the rotary drum washing stroke is entered, and the drain valve 11 is set to the closed state in step ηι, whereby the washing can be performed from the washing in the washing drum 20 steps. The water that has escaped, therefore, does not require a special configuration, g(7 can accumulate water in the water tank 3. Next, the timer 1 is reset to zero in step 112, and at step 113 (time t7 of Fig. 6) In the middle, the set number of revolutions R of the rotary drum 1 is set to the first predetermined number of revolutions (400 r/min) as an initial value, and in the time t7 of the sixth figure, 17 1284161 when the number of revolutions of the rotary drum 1 becomes the first When entering the cow W 114 〇, 疋 rotation number (400r/min), then proceed to step (1), money roll (four) turn control - face reference to Figure 7 ~ (10) control and motor current control action surface to explain the above drum rotation 5 10 15 20 Step 12^: = The drum rotation number control is started in step 120, and the timer 2 is reset to zero in step: and the feedback control is performed in step 122. The number of revolutions of the drum 1 becomes the setting _ (initial value) (4). When in the = chan lion, enter step 124, and enter _ to detect the motor current measured by the singer! In step 125, it is determined whether the motor current is above a predetermined value Ic. When the load of the motor 5 is light, and the motor current I is not above the predetermined level as shown in Fig. 6, the process proceeds to step 127, and returns to the original step ' When the load of the motor 5 is heavy, and the motor current 1 is above the predetermined value Ie as shown by the curve d of the fourth (4), the step m is entered, and the set number of revolutions is called 5 r/min, and the process proceeds to step 127, and returns. The original step. Thereby, when the load of the motor 5 is light, the number of revolutions of the rotating drum is as shown by the curve a of Fig. 6, and the first predetermined number of revolutions is controlled between the time ratios and the initial value. (400r/min), and when the load of the motor 5 is heavy, as shown by the curve b of FIG. 6, the third predetermined rotation number (400r/min) of the initial value is controlled between times t7 and t8. And at time t8 after 5 seconds, the set number of revolutions r is lowered by 5r/min, and controlled at 395r/min, and then, after 5 seconds, the set number of revolutions R is lowered by 5r/min, at time t10. Previously controlled at 390r/rniri. As a result, since the motor 5 is controlled, when the load of the motor 5 is light, it can be as shown in Fig. 6. As shown by the curve c, the control is below the predetermined 18 1284161 value Ic between times t6 and t9, and when the load of the motor 5 is heavy, the rotating drum 1 can be lowered after the time t9 as shown by the curve d of FIG. The number of revolutions is controlled to be below the predetermined value Ic. Next, the routine proceeds to step 115, and the water supply valve 12 is activated to supply water into the 5 sinks 3. Thus, even if the amount of laundry is small, and the laundry is Less water is removed, and water can be surely accumulated in the water tank 3. Further, at this time, according to the amount of laundry detected by the laundry amount detecting device 27, as shown in (Table), water is supplied according to the set operation time, and the water is not affected by the amount of the washing material, and the water tank can be used. 3 accumulates approximately the same amount of water. When the timer} in step 116 of FIG. 5 has exceeded 3 , seconds and becomes t10 of FIG. 6, the process proceeds to step 117, and the drain valve 丨丨 is opened, and proceeds to step 118 to enter dehydration. The stroke is accelerated, and the number of revolutions of the rotary drum is accelerated to dehydrate the laundry in the rotary drum 1. 15 20

Here, the rotary drum washing stroke is performed, that is, in the state where the water is accumulated in the water tank 3, the rotation of the rotary roller m is numerically controlled so that the silk object is attached to the rotation of the cat rotating drum m, and the normal dehydration is recorded. The lower number of the third is scheduled to be converted (for example, 4 operations/min), whereby, as shown in Fig. 3, the water from the water hole 2 of the rotation m of the rotation of the old rotation is in the drain In the case of M, the reflection on the 'Ma' and the outer peripheral wall of the rotating drum R are encountered. Therefore, it is possible to use the water of the radiant spray to clean the surface of the rotating roller m and the like. Then the phase is held in the state 'and can prevent the dirt of the rotating drum 1 from producing bacteria or mildew, to clean the washing. In addition, since the water supply is called in the shovel, and the water is supplied to the water tank 1 in 19 1284161, as shown in Fig. 8, the water supplied through the water supply passage 13 is passed through the water tank 3. The inner surface reaches the drainage channel 14 and is reflected on the side wall 14a of the drainage channel 14. At the same time, the wind pressure caused by the rotation of the rotating drum 使 causes the water to cause turbulence, and the straw is reflected and turbulent. The outer peripheral wall of the rotary drum 1 is washed with clean water. Thereby, the outer peripheral wall of the rotary drum 12 can be further maintained in a clean state. As described above, in the present embodiment, the control device 16 performs the rotary drum washing stroke while the water is stored in the water tank 3, and controls the number of revolutions of the rotary drum 1 so that the laundry is stuck in the rotary drum. More than the number of revolutions

10 is the first predetermined number of revolutions which is lower than the normal number of dehydration revolutions. Therefore, the strong water flow generated when the rotary drum 1 is rotated at a high speed can wash away foreign matter or dirt adhering to the detergent residue on the outer peripheral wall of the rotary drum, and can The outer peripheral wall is maintained in a clean state, and the same day temple can prevent foreign matter such as lotion residue or dirt from re-attaching to the washing drum in the rotating drum. 15 and 'due to control the difficulty of setting π control > 総, rinsing and dehydration, etc.

Further, the rotary drum washing stroke is executed during the dehydration stroke, so that the number of revolutions of the rotary drum 1 is controlled to, for example, 4__ in a state where water is accumulated in the water tank 3 after sufficient rinsing and washing, whereby the solution can be solved. The lotion component remains (very late bubble; the end of the sub-H is stagnant state and can not increase the number of revolutions of the spin 20, etc. ^,; more has a current detecting device 3 for detecting the current of the motor 5 and the control device 16 round The person comes from the signal of the current detecting device 24, and refers to =5' so that the current of the stirrup 5 is below a predetermined value, so even if the ratio of the strip to the strip is high, or the water accumulated in the water tank 3 of 20 1284161 When the load on the motor 5 is increased, the current flowing into the motor 5 can be restricted, so that abnormal heat generation of the motor 5 can be suppressed and safety can be improved. Further, since the control device 16 is in the rotary drum washing stroke Since the drain valve 5 Η is set to the closed state, the water discharged from the laundry during the washing process of the rotary drum can be accumulated, so that water can be accumulated in the water tank 3 without requiring a special structure, and can be realized. Cost and sanitary wash Further, since the control device 16 operates the water supply valve 12 in the rotary drum washing stroke and supplies water into the water tank 3, even if the amount of laundry is less than 10 and the amount of water discharged from the laundry is small, It is also possible to surely accumulate water in the water tank 3, and at the same time, clean the outer peripheral wall of the rotary drum 1 with clean water, and further maintain the outer peripheral wall of the rotary drum 1 in a clean state. The operation time of the water supply valve 12 is set based on the amount of laundry detected by the laundry amount detecting device 27, so that it is not affected by the amount of laundry, and substantially equal amount of water can be accumulated in the water tank 3, and In addition, the control device 16 sequentially causes the rotating drum 1 to increase from a substantially stationary state to a second predetermined number of revolutions lower than the first predetermined number of revolutions, thereby causing the laundry to stick to the rotating drum. The laundry balance stroke in 1 and the determination of the laundry balance determination stroke in the laundry balance state at the second predetermined number of 20 rotations, the rotary drum washing stroke is performed, so that the washing can be performed by washing During the balance stroke, the laundry is gradually attached to the inner wall of the rotating drum to change the balance state of the laundry, and the speed is increased to the first predetermined number of revolutions only when the balance of the laundry is good, and the rotary drum washing stroke is performed, and The unbalance of the laundry can be avoided to cause abnormal vibration of the rotating roller 21 1284161 of the drum 1 or the water tank 3 to improve the safety of the product. Further, since the control device 16 determines that the balance of the washing material is poor in the washing balance determination stroke At the same time, the laundry balance stroke is restarted. Therefore, after the rotary drum i is temporarily stopped and the laundry is peeled off, the laundry is gradually applied to the inner wall of the rotary drum 1 by washing the balance of the laundry. Therefore, the balance state of the laundry can be changed, and the speed is increased to the first predetermined number of revolutions only when the laundry is well balanced, and the rotary drum washing stroke is performed, and the washing can be avoided.

The imbalance of the articles causes abnormal vibration of the rotating drum 1 or the water tank 3 to improve the safety of the product. In the present embodiment, although the rotary drum washing stroke is performed during the dehydration stroke after the washing stroke and the rinsing stroke, the crucible stroke may be in the dehydration stroke or the rinsing stroke of the washing stroke and the rinsing stroke. The rotary drum washing stroke is performed in the intermediate dehydration stroke, and the same action and effect can be obtained. Further, in the present embodiment, the drying of the rotating drum (7) may be dried, but the warm air may be blown into the water tank 3.

The function of drying it is such that the same action and effect can be obtained. Industrial Applicability According to the present invention, 20 τ π ...... ...... 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转 旋转The outer peripheral wall can be maintained in a material state, because I is a washing machine that washes, rinses, and dehydrates in a rotating drum that is reduced in a substantially horizontal direction or substantially inclined. BRIEF DESCRIPTION OF THE DRAWINGS 3 22 1284161 Fig. 1 is a partial block circuit diagram of a washing machine in accordance with an embodiment of the present invention. Figure 2 is a longitudinal sectional view of the washing machine. Figure 3 is a cross-sectional view of the main part of the washing machine. 5 Fig. 4 is an enlarged front elevational view of the input setting device and display device of the washing machine. Figure 5 is a flow chart showing the main part of the washing machine. Fig. 6 is a timing chart showing the number of revolutions of the rotating drum of the washing machine and the change of the motor current. 10 Fig. 7 is a flow chart showing the subroutine of the drum rotation number control and the motor current control of the washing machine. Fig. 8 is a cross-sectional view showing the main part of a state in which water is supplied to the water tank of the washing machine. [Main component representative symbol table of the drawing] 1... Rotating drum 7... Cover body 1, 2.·· Timer 8... Clothes inlet and outlet 2... Water passage hole 9... Washing machine body 3. ..Water tank 10...Drainage passage 4...Rotary shaft 11...Drain valve 5...Motor 12·..Water supply valve 5a...First coil 13...Water supply passage 5b··· Second coil 14...drain 5c...third coil 14a...sidewall 6...protrusion plate 15...control mechanism 1804161 16...control device 22...drive circuit 17... Input setting device 23: Inverter 17a... Washing time setting switch 23a... First switching element 17b... Rinse number setting switch 23b... Second switching element 17c... Dehydration time setting switch 23c· ·3rd switching element 17d...Operation mode setting switch 23d···4th switching element 17e...Start/pause switch 23e···5th switching element 17f...Power-on switch 23f... The sixth switching element 17g...the power supply disconnecting switch 24...the current detecting device 18...the display device 25...the resistor 18a...the washing time display unit 26...the current detecting circuit 18b...the number of rinsing times Part 27...washing amount detecting device 18c...dehydration time display Part 28: commercial power supply 18d... mode setting display unit 29... diode bridge circuit 18e... wash dose display unit 30... choke coil 18f... operation remaining time display unit 31. .. smoothing capacitor 18g...digital display unit I...motor current 19...water level detecting device Ic...predetermined value 20...load driving device 21,21a,21b,21c···position detecting device R ...set the number of revolutions 24

Claims (1)

1284161 X. Patent application scope: _ No. 9331323 Application for patent scope modification ^ (3) 沭 1 · A washing machine comprising: I-- to or substantially 5 rotating drums, wherein the central axis of rotation is in a substantially horizontally inclined direction; 10 15 20 The water tank is elastically supported on the body of the washing machine, including the rotating drum; the drainage device is used to smear the water in the water tank; a motor for driving the rotary drum; an inverter having a power supply to the motor; and a component control device for controlling the operation of the drain and forcing the inverter a switching element for controlling the driving of the motor to be used for each of the steps of washing, rinsing, and dehydrating, and the control device is capable of accumulating the draining device at the beginning of the surface water stroke when the surface of the water surface is rinsing The water in the tank is discharged to the outside of the machine, and then, before reaching the rotation of the rotating drum at the normal dehydration number, the rotating drum washing stroke is performed for a predetermined time, and the rotating drum washing stroke can control the number of revolutions of the rotating drum 'There can be the above-mentioned washings accumulated in the above-mentioned water tank by making the overturned material more than the number of revolutions in the rotating drum and lower than the normal number of revolutions by n. The state of the water that has escaped. 25 1284161 2. The washing machine of claim i, further comprising a current detecting device for detecting a current of the motor, wherein the control device inputs a signal from the current detecting device to control the motor to make the motor The current is below a predetermined value. 5) The washing machine of claim 1 or 2, further comprising a water supply device for supplying water into the water tank, wherein the control device operates the water supply device during the washing drum cleaning stroke to move water Supply to the aforementioned water tank. 4. The washing machine of claim 3, further comprising a washing amount detecting device for detecting the amount of laundry in the rotating drum, and the foregoing 栌=device is based on the second secret detected by the washing amount detecting device. The amount is set to set the operation time of the water supply device. 5. The washing machine according to the first or second aspect, wherein the control device sequentially increases the number of revolutions of the rotating drum from a substantially stationary state to a second fiscal number lower than the first financial turnover. The washing balance stroke of the washing drum is washed, and the washing drum balance stroke of the yarn balance H of the second predetermined number of revolutions is determined. 6. The washing machine of claim 3, wherein the control device 2 依 依 sequentially causes the rotating drum to increase from a substantially stationary state to a second predetermined number of revolutions that is lower than a first predetermined number of revolutions. The washing material is attached to the laundry balance stroke in the front core feed, and the washing drum balance stroke is performed after the second predetermined = number of washing_balanced state of the washing plume balance. The washing machine of claim 5, wherein the control device restarts from the laundry balance stroke when it is determined that the laundry balance state is poor during the laundry balance determination stroke. 8. The washing machine of claim 6, wherein the control device restarts from the laundry balance stroke when it is determined that the laundry balance state is poor during the laundry balance determination stroke. 27