JPH0675627B2 - Washing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine, and more particularly to a washing machine in which a dehydration tub in an outer layer is attached to a shaft to directly drive the dehydration tub.

[0002]

2. Description of the Related Art Generally, in each home,
The washing machine used is constructed as shown in FIG. That is, as the washing / dewatering motor 6 rotates, through the shaft assembly 19 connected to the motor 6,
It has a structure to rotate the rotary blades 22 for washing,
There is a limit to the improvement of the cleaning power, and there is a problem that the attachment of the shaft assy causes the problematic elements to be scattered and the constraints to accompany the noise reduction. Furthermore, there is a problem that air bubbles are excessively generated and overflow in a washing machine by injecting air into the washing machine to cause the bubbles to overflow, and the braking time is lengthened by the mechanical braking method during dehydration. There was a problem. In order to solve the above-mentioned problems, if the dehydration tank is directly attached to the motor shaft and the door is opened during dehydration, the mechanical braking device that is interlocked with the door will forcibly brake, which causes noise and takes a long braking time. There was a problem.

[0003]

In order to solve the above-mentioned problems, in the washing machine according to the present invention, the dehydration tub is directly attached to the motor shaft to rotate the dehydration tub, and the water flow formed integrally with the dehydration tub. We provide a device that suppresses excessive foaming in the air injection method to strengthen the detergency due to foaming of the detergent by forming a water flow by the forming blades and washing, and provides a mechanical braking method during dehydration and an electronic braking method. (EN) A device that shortens the braking time by also performing braking.

[0004]

The present invention will be described in more detail below with reference to the drawings illustrating the present invention. The structure of the washing machine according to the present invention is shown in FIG. According to FIG. 3, the washing machine has an upper lid 11 attached to the upper part of the outer case 1, a water supply valve 15 attached to the upper lid 11, and a water supply hose 16 provided on the outlet side of the water supply valve. The water supply ring 10 is attached to the other side of the structure. Further, a top cover lid 14 is attached to one side of the upper lid 11, a control panel 12 is attached to the front surface of the upper lid 11, and a door 13 is attached to the central portion of the upper lid 11. On the other hand, indicator rods 8 are hooked on the upper four corners of the outer casing 1, and indicator rod springs 8-1 are inserted at the other ends of the indicator rods 8 to hook the indicator rods on the outer casing 2. A liquid balance 9 is attached to the upper stage of the dehydration tank 3, and a water flow forming lid 3 is integrally formed on the bottom of the dehydration tank 3.
1 is attached, and a pumping rib 3-2 is integrally provided on the outer bottom surface of the dehydration tank. Further, on the inner bottom surface of the dehydration tank, there are ventilation holes 3 through which water drainage and air are introduced.
3 is provided, and a hole connected to the motor 6 side is opened. A water supply ring 10 is attached to the upper stage of the outer tub 2, a washing and dehydrating motor 6 is attached to the center of the bottom of the outer tub 2, and a motor for drainage and air injection is installed on one side of the outer tub 2. 5 is mounted, and the drain hose 4 is attached to one side of the dual-purpose motor 5 and the like.

The other side of the drainage hose 4 is attached to the outer case 1, and rubber legs 7 are provided at three places on the bottom surface of the outer case 1.
Is installed. On the other hand, as shown in FIG. 1, a leg adjusting nut 20 and a leg adjusting rubber 2 are provided on one bottom surface of the outer case 1.
1 is attached to play a role of balancing when installing a washing machine. FIG. 4 shows a control circuit of a washing machine according to the present invention, the structure of which is as follows. The terminals 1-6 of the control unit IC1 for controlling the peripheral system operation according to the set program are connected to one side of the resistors R16-R21, and the other side of the resistors R16-R21 are connected to the light emitting elements LED1-LED6. Each is connected to the anode end. Further, the cathode ends of the light emitting elements LED1 to LED6 are all connected to the ground.

On the other hand, the input port IN3- of the control unit IC1
IN8 is one side of the switches SW1-SW6 and the resistor R8-
The other side of each of the resistors R8 to R13 is connected to one side of R13, and the other side of each of the resistors R8 to R13 is connected to the anode of the diode D3. The other terminals of the switches SW1 to SW6, one terminal of the triacs TR1 to TR5, the cathode terminal of the diode D2, one terminal of the resistor R1, the output terminal of the IC8, one terminal of the capacitor C4, one terminal of the primary side of the transformer T1 and One terminal or the like of the AC power source Vin is connected to Vcc. The terminal In2 of the control unit IC1 is the anode of the diode D2 and the cathode of the diode D3, and the other side of the resistor R15 is the secondary side one terminal of the transformer T1 and the diode D.
It is connected to one anode. The cathode of the diode D1 is connected to the + terminal of the capacitor C3 and the input side of the IC8, and the other secondary side terminal of the transformer T1 is
Grounding and-terminal of capacitor C3, capacitor C4
-Is connected to a terminal or the like. The other terminal of the primary side of the transformer T1 is the other terminal of the AC power supply Vin, and the water supply valve L.
2 terminal, motor mT2 terminal, switch L1 L
The 1-1 terminal is connected to the C terminal of the current circuit BR1, and the other terminal of the coil L2 is connected to the T2 terminal of the triac TR5.

On the other hand, the T2 terminal of the triac TR1 is
The cathode of the port sensor IC9 and the anode of the diode D4 are further connected to the capacitor, one terminal of C1 and one terminal of the motor mT1, and the T2 terminal of the triac TR2 is the a terminal of the rectifier circuit BR1 and the L1-6 terminals of the switch L1. Is connected to another terminal of the switch L1,
It is connected to one terminal of the motor mT1. The other terminal of the resistor R14 is connected to the anode of the port sensor IC9 and the cathode of the diode D4, and the other terminal of the resistor R1 is connected to the RPM sensing terminal IN1 of the control unit IC1 and the emitter terminal of the port sensor IC9. . The b terminal of the rectifier circuit BR1 is connected to L1-5 of the switch L1 and the L1-2 of the switch I1 is connected to the d terminal of the rectifier circuit BR1. The T2 terminal of the triac TR3 is connected to the other terminal of the capacitor C2 and the terminal of the motor mT2. The Vdd terminals of the control unit IC1 are connected, the OUT1-OUT6 terminals of the control unit IC1 are connected to the input terminals of the inverter IC2-IC7, and the input terminals of the inverter IC2-IC7 are connected to each other,
The output terminal of the inverter IC2-IC7 is a resistor R
2-R7 is connected to one terminal respectively, and the other terminals of the resistors R2-R3 are the gate terminals of the triacs TR1-TR2,
The other terminal of the resistor R4 is one terminal of the switch L1 and the other terminal of the resistors R5-R7 is a triac TR3-TR5.
Are connected to the respective gate terminals.

The washing process A of the washing machine according to the embodiment will be described below. In FIG.
By pressing the switch corresponding to the desired skill in the switches SW1-SW4, the corresponding terminals in the inverters IN3-IN6 can receive the "HIGH" signal and sense that the desired skill is selected. Is the control unit IC
When it is started after being recognized by 1, the operations are performed in the order of strokes as shown in FIG. As can be seen in FIG.
The water supply skill A-1 is performed according to the sequence of FIG. 2, but a malfunction (instantaneous initial "HIG
H "output generation)
1 OUT1-OUT6 terminals, that is, the output terminals
Send out OW "output.

Next, at the water level level detecting terminal IN7 of the control section IC1, when the set water level is reached, the switch SW5 is positioned at J and K, the "HIGH" input is sensed, and the switch SW5 becomes J. "LOW" if located at L
Although the input is sensed, the input value (voltage) of the water level level sensing terminal IN7 of the control unit IC1 is confirmed, and if it is "LOW", the water supply valve drive terminal OUT6 of the control unit IC1 of FIG.
Sends out the output of "HIGH". Accordingly, "LOW" is applied to the output of the inverter IC7, the triac TR5 is turned on, and AC is supplied to the water supply valve L2.
The water supply valve operates as the power is applied.
As described above, when the water supply valve is operated, the water supply starts, and the water drops into the dehydration tub 3 through the water supply hose 16 and the water supply ring 10 shown in FIG.

The structure of the water supply ring is a cylindrical ring, and several tens of holes are evenly distributed so that water drops toward the center of the bottom of the dehydration tank, and the water supply ring is opened in a circular shape. Has been. When the set water level is reached, the switch SW5 of FIG. 4 has its contacts connected to J and K, and accordingly, the water level level detection terminal IN7 of the control unit IC1 becomes "HIGH."
Detecting the input value at H ", the control unit IC1 sends out a" LOW "signal at the water supply valve drive terminal OUT6 of FIG. 4 as seen in FIGS. 5 to 7. Therefore, the inverter IC7 The output becomes "HIGH", and as the "HIGH" signal is applied to the gate terminal of the triac TR5, the triac TR5 is turned off, and eventually the power applied to the water supply valve L2 is cut off. The operation is stopped and the water supply is cut off.

When the water supply skill A-1 is completed, the next skill, the washing skill A-2, is executed. As shown in FIGS. 5 to 7, the washing is performed by first performing “HIG” at the air injection motor drive terminal OUT5 of the control unit of FIG.
As the "H" signal is sent to make the output terminal of the inverter IC6 "LOW", the "LOW" signal is applied to the gate terminal of the triac TR4, and accordingly, the triac TR4 is turned on and the motor MT2 is supplied with power. The motor M operates according to the following.
As T2 is activated, air is injected toward the bottom of the outer tub 2 through the motor 5 through the drain hose 4 of FIG. When the air is injected into the outer shell tank 2, the air is injected into the water that has already been injected, so that water drops, that is, bubbles are generated. The generated air bubbles impact the laundry already contained through the innumerable vent holes 3 and 3. As a result, the bubbles help the already introduced detergent penetrate into the laundry,
By promoting the foaming of the detergent, it promotes the separation of dirt due to foaming and increases the interlocking energy of the interface. As a result, some of the activated detergent is permeated, and some of the detergent becomes bubbles and swells toward the upper stage of the dehydration tank 3.

As described above, the bubbles can contribute to the improvement of detergency by continuously assisting the activation of the interface. As described above, the motor mT2 for injecting air is continuously operated, and as shown in FIGS. 5 to 7, the mechanical shock doubling and the water flow for stirring the laundry are formed for about 10 seconds in FIG. A "HIGH" signal is sent from the washing motor drive terminal OUT1 of the controller. According to this, power is applied to the motor mT1 and the washing and dehydrating motor mT1 rotates in the forward direction. When the washing / dewatering motor mT1 rotates, as shown in FIG. 3, the dewatering tank 3 mounted on the shaft of the washing / dewatering motor 6 is seen.
Is rotated, a water flow is formed by the water flow forming blades 3-1 provided integrally with the dehydration tank 3 on the bottom surface of the dehydration tank 3, friction is generated between the laundry items, and the laundry items are stirred.

On the other hand, as the washing progresses, the pumping rib 3-2 integrally provided on the outer bottom surface of the dehydration tub 3 serves to reduce bubbles generated, The operation will be described below.
Water is pumped by the pumping ribs 3-2 as the dehydration tank 3 rotates, reaches the water supply ring 10 through the water flow guide passage 2-1, and is eventually pumped toward the center of the inner bottom surface of the dehydration tank 3. The bubbles generated are suppressed because they fall. As described above, the washing motor is operated for 10 seconds, and after 10 seconds, as shown in FIGS. 5 to 7, the washing motor drive terminal OUT1 of the control unit IC1 sends a "LOW" signal to the inverter IC2. The output is reduced to "HIGH", the "HIGH" signal is applied to the gate terminal of the triac TR1, and the triac TR1 is turned off, so that the power applied to the washing and dehydrating motor mT1 is cut off. The motor stops working. Even if the motor rotating in the forward direction is stopped, the air injecting motor 5 that has started to operate continuously continues to operate, and 50 seconds after the motor rotating in the forward direction is stopped, the reverse operation is performed. In order to rotate the dehydration tank 3 in the direction, as shown in FIGS. 5 to 7, the dehydration motor drive terminal OU of the control unit IC1 of FIG.
Sending a "HIGH" signal to T2, triac TR
2 is turned on, power is applied to the motor mT1,
The motor rotates in the opposite direction. Reverse rotation is also shown in FIG.
As can be seen in FIG. 7 to FIG.
0 seconds later Fig. 4 Dehydration motor drive terminal OUT of the control unit IC1
At 2, the triac TR2 that sends out the "LOW" signal is turned off, and the reverse rotation is stopped. as mentioned above,
The motor mT1 continuously and repeatedly executes in the order of forward direction ON--stop--reverse direction ON--stop, and when a set time has elapsed, the output terminals OUT1-OUT6 of the control unit IC1 shown in FIG. As the LOW "signal is sent to stop all the operations, the operation of the air injection motor, which has been continuously operating during the washing skill, is also stopped.

As described above, when the washing process is completed, the drainage skill B-1 is performed as shown in FIG. Although the input voltage of the water level level sensing terminal IN7 of the control unit IC1 is confirmed in the initial stage of the drainage skill B-1, the switch SW5 is connected to J and K when the water is supplied up to the set water level. In order to drain the water, the "HIGH" output is sent out from the drain motor drive terminal OUT4. According to this, the triac TR3 turns on the turn-on motor mT.
In the direction 2 opposite to that at the time of injecting air, 2 spouts the water contained in the outer shell tank 2 and the dehydration tank 3 to the outside through the drain hose 4 as the motor rotates. Thus, drainage skill B
If the water level of the outer tank falls below a certain level by continuously performing -1, the contact of the water level switch of the switch SW5 in FIG. 4 is changed to the positions of J and L, thereby the control unit IC1.
As the "LOW" voltage is applied to the water level sensing terminal IN7 of FIG. 4 to recognize the starting point of the drainage skill, as shown in FIGS. 5 to 7, the drain motor drive terminal of the control unit IC1 of FIG. A "LOW" signal is sent out at OUT4 to turn off the tiger TR3, and the motor operation is stopped as the power applied to the motor mT2 is cut off.

When the drainage skill B-1 is completed, as shown in FIG. 2, the dehydration skill B-2 is performed. At the initial stage of dehydration, as shown in FIGS. 5 to 7, the door detection terminal IN8 of the control unit IC1 shown in FIG. 4 detects whether the door is closed or opened. When the normal door is closed, the switch SW6 is located at the contact point of N and P, and the door detection terminal IN of the control unit IC1.
The "HIGH" voltage is applied to the switch 8, and when the door is opened, the contact of the switch SW6 is N and O.
In this position, the "LOW" voltage is applied to the door sensing terminal IN8. When the door 13 of FIG. 3 is closed, the control unit IC1
When a "HIGH" voltage is applied to the door sensing terminal IN8 of the vehicle, the dehydration motor driving terminal OU of the control unit shown in FIGS.
"HIGH" at T2 and drain motor drive terminal OUT4
The output is sent to drive the washing / dewatering motor mT1 and the drainage / air injection motor mT2. As the washing and dewatering motor mT1 rotates, the dewatering tub 3 also rotates, and the detergent and water that have penetrated into the laundry due to the centrifugal force also escape by an amount proportional to the RPM of the dewatering tub 3 and reach the bottom of the outer tub 2. The accumulated water is discharged to the outside through the drain hose by the operation of the drain motor. After performing the dehydration skill for the set time, as shown in FIGS. 5 to 7,
The operation of the drain motor drive terminal OUT4, the dehydration motor mT1, and the air injection and drain motor mT2 of the control unit in FIG. 4 is stopped.

Even if the power applied to the washing and dehydrating motor mT1 is cut off, the motor does not stop immediately but rotates together with the dehydrating tub 3 until it stops by inertia.
Since the next skill is performed when the dehydration tank 3 is stopped, the present invention has the skill to detect whether or not the motor can be stopped, which will be described below. A potential difference is generated between the point Y and the point W in FIG. 4 as the washing and dehydrating motor mT1 is operated, and the potential difference is alternated. That is, when the potential at the W point is higher than the potential at the Y point, the BYP voltage is applied through the diode D4.
Since the ASS is activated, the port sensor IC9 does not operate, and when the potential at the point Y is higher than the potential at the point W, the light emitting diode in the port sensor IC9 comes into operation, and photoelectrons generated in accordance with the operation are generated. A "LOW" voltage is applied to the RPM sensing terminal IN1 of the controller IC1 as it is applied to the base end of the transistor and drives the transistor. In other words, normal "HIG
The "H" voltage is applied, but the "LOW" voltage is applied, so the control unit IC1 recognizes that the dehydration motor is rotating.

As described above, the W point potential and the Y point potential in FIG. 4 are continuously alternated, and the RPM sensing terminal I of the control unit IC1 is changed.
The voltage input to N1 is LOW-HIGH for about 0.2 seconds.
If the above is repeated, the control unit IC1 recognizes that the dehydration motor is rotating, and if the voltage input to the RPM sensing terminal IN1 is continuously “HIGH” voltage, the W point potential And the Y point potential are recognized with the same value, that is,
Judge that the motor has stopped. On the other hand, when performing the dehydration skill, when the door 13 of FIG. 3 is opened and the contacts of the switch SW6 of FIG. 4 are positioned at N and O, the voltage applied to the door sensing terminal IN8 of the control unit IC1 becomes “LOW”. "become. As a result, the control unit IC1 senses that the door 13 is opened, and as shown in FIGS. 5 to 7, the drain motor drive terminal OUT4 of the control unit IC1 is "LOW". Sends the output and stops the operation of the drain drive motor. If the washing / dewatering motor mT1 operates or does not operate when the door 13 is opened, and if the motor mT1 does not operate, it is in a stopped state, so it is not necessary to perform other operations, but the dehydration motor operates. When it gets inside, sudden braking must be applied to suddenly stop the dehydration tank and the dehydration motor.

If you do not stop suddenly, if you put your hand in a spinning tank that is artificially rotating, you will be in a very dangerous situation, so you must apply sudden braking, but explain the operation. It is as follows. This is the same as the method of detecting whether or not the washing / dehydrating motor mT1 can rotate. As shown in FIGS. 5 to 7, if the control unit IC1 senses that the spinning tub and the motor are rotating, the output terminal OUT3 for water supply is used. The "HIGH" output is sent out and the output of the inverter IC4 is converted to "LOW". According to this, DC power is applied to both ends of the DC relay to drive the relay L1. As the relay L1 is driven,
The contacts of the switch L1 are L1-4, L1-5 and L1-3.
And motors L1 and L1-2 respectively for washing and dehydrating
The power source Vin applied to the relay 1 passes through the triac TR2, the rectifier circuit BR1, and the contact L1- of the relay L1.
5, L1-4, is applied to the washing and dehydrating motor mT1, is connected to another terminal of the power supply Vin through the rectifier circuit BR1 through the contacts L1-3 and L1-2 of the relay L1, and is connected to the lube 100P. Is done. Therefore, eventually, a pulsating current is applied to the dehydrating motor, whereby the N and S poles are not alternated, and the motor stops rotating as it is maintained at a constant pole.

When the dehydration tub 3 rotates at a low speed, the pulsating flow is applied to the dehydrating motor for 0.5 seconds to stop the rotation, but during the high speed rotation, the pulsating flow is repeatedly applied. By this, sudden braking is applied. Until the dehydration motor stops, the sudden braking drive terminal OUT3 of the control unit IC1 in FIG.
As shown in the flow charts of FIGS. 5 to 7, “HIGH”-
Standby for 0.5 seconds --- Send "LOW" output, and if motor stops, "LOW" to dehydration motor drive terminal out2
The output is sent, the triac TR2 is turned off, and the power supply of the washing and dehydrating motor mT1 is cut off. After performing the dehydration skill FIG. 2B-2 as described above, the water supply skill is entered, and the water supply operation is similar to the water supply skill during washing.

Next, the rinsing skill will be performed. The rinsing skill is the same as the washing skill A-2 in the washing process, and is repeatedly performed up to the rinsing skill B-4. After the rinsing process FIG. 2B is completed, the dehydration process FIG. 2C is performed. The drainage skill C-1 in the initial stage of the dehydration process is the same as the drainage skill b-1 in the rinsing process FIG.
2. Further, it is performed in the same flow as the dehydration skill of the rinse step B.

[0021]

The present invention operated as described above is shown in FIG.
However, instead of deleting the shaft assembly 19 and the rotor blades 22, the problem of the shaft assembly 19 that has been generated when the conventional washing machine of FIG. The water tub 3 was directly attached, and the water flow forming blade 3-1 was integrally provided on the inner bottom surface of the dehydration tub 3 together with the dehydration tub 3 to solve the problem. When performing washing and rinsing, the motor 5 for both drainage and air injection was operated. , As the air is injected, air bubbles are generated to improve the detergency, and as described above, the device is equipped with a device that suppresses the generation of excessive air bubbles associated with the air injection, replacing the existing mechanical braking system. In addition, an electronic braking system is created to bring about an effect of reducing braking time and noise.

[Brief description of drawings]

FIG. 1 is an assembled sectional view of a conventional washing machine.

FIG. 2 is a flowchart of a washing, rinsing and dehydrating process of a conventional washing machine.

FIG. 3 is an assembled sectional view of the washing machine according to the present invention.

FIG. 4 is a control circuit diagram of the washing machine shown in FIG.

FIG. 5 is a flowchart of water supply skill in the washing process of the washing machine according to the present invention.

FIG. 6 is a flow chart of dehydration skill in the washing process of the washing machine according to the present invention.

FIG. 7 is a flow chart of drainage skill in the washing process of the washing machine according to the present invention.

[Explanation of symbols]

 1 Case 2 Outer Vessel 3 Dehydration Tank 3-1 Water Flow Forming Blade 3-2 Pumping Rib 3-3 Vent 4 Drain Hose 5 Drainage and Air Injection Motor 6 Washing and Dehydration Motor 7 Rubber Leg 8 Pointer 8-1 Pointer Spring 9 Liquid balance 10 Water supply ring 11 Upper lid 12 Control panel 13 Door 14 Top cover lid 15 Water supply valve 16 Water supply hose 17 Legs 18 Drain valve 19 Shaft assembly 20 Leg adjustment nut 21 Leg adjustment rubber 22 Rotor blade

Claims (2)

[Claims] 1. A washing machine case, an air injecting / draining motor mounted on the outer bottom of the outer tub with one side inclined, a washing / dewatering motor installed at the outer bottom of the outer tub, and an upper surface opened. An outer tub, a dehydration tub contained in the outer layer, a water supply valve connected to the washing machine case and the outer layer, a door installed on the upper surface of the washing machine case to open and close, and a washing machine case In an automatic washing machine equipped with a control device installed on the front surface of the upper surface, a dehydration tub is attached to a washing and dehydration motor, and a radial water flow forming blade is formed integrally with the dehydration tub on the inner bottom of the dehydration tub. A washing machine, wherein radial pumping ribs are formed on the outer bottom of the dehydration tub, and a washing water guide passage is formed on a cylindrical surface of an outer layer containing the dehydration tub. 2. The controller is turned on and off according to the voltage difference between two power supply terminals of the washing and dehydrating motors, and turned on and off according to the output of the controller, and is connected to an AC power source. Triac, rectified by receiving alternating current power in the triac, bridge circuit for supplying to the washing and spinning motor, according to the negative output, the triac is directly connected to the power terminal of the washing and spinning motor, The triac through the bridge circuit, a relay equipped with two switches for connecting to the power supply terminal of the washing and spinning motor, and the ON and OFF states of the port sensor, to determine the rotation speed of the washing and spinning motor, The washing machine according to claim 1, further comprising a control unit that outputs a signal from the relay during sudden braking.