JP6210350B2 - Washing machine and control method - Google Patents

Description

  The present invention relates to the field of washing machines, and in particular, to a washing machine and a control method.

  Many of the existing washing machines employ a hermetic balance ring, and the filling is made of a liquid or a material such as a steel ball or a steel ingot and sealed in the cavity of the balance ring. When dewatering at high speed in the washing machine, the filling that can move in the cavity of the balance ring based on the vibration point can move itself to a position symmetrical to the eccentric load of the washing machine, thereby Reduce eccentricity and reduce vibration and noise. There is a difference in the amount of eccentricity distributed in each operation of the washing machine, especially when performing dehydration for a load with a relatively large amount of water absorption such as cotton stuffing, the balance ring with a fixed filling completely eliminates the eccentricity of the mass. It cannot be balanced. In addition, when the load is relatively light or the garment has a relatively small amount of water absorption, the eccentricity is relatively small, and the amount of filling in the balance ring is the vibration or distribution during low-speed rotation and the calculation of the eccentricity. Negative impact. These greatly affect the effect of eccentricity.

  Currently, the washing machine uses the movement of the filling in the balance ring to balance the eccentricity, the inside filling is sealed inside the balance ring, the inside filling can be liquid or steel balls, steel ingots And so on. The requirements for the sealing of the balance ring are quite high, and the service life of the washing machine reaches several decades. The demands on the balance ring manufacturing process are relatively high, so the costs are relatively high and the production efficiency is relatively low. Furthermore, the combined weight of the balance ring and the internal filling is large, which causes certain difficulties in assembling the washing machine.

  Patent Document 1 Chinese Patent Application No. 200910158225.9 discloses a balancing device for a drum-type washing machine, and the balancing device comprises at least two annular chambers installed coaxially with the drum around the drum. Among these, at least one chamber is a spherical balance ring provided with a ball, and at least one chamber is a liquid balance ring provided with a flowing liquid. Utilizing two different counterweights of balls and liquid, at least two types of equilibrium forces having different reaction speeds are generated, and further, the equilibrium state of rotation during washing machine drum dehydration is improved. When the rotation speed is below the resonance point of the drum and the outer tub, the liquid balance ring absorbs vibration. When the rotational speed passes through the resonance point and stabilizes, the sphere balance ring exhibits a high level of vibration absorbing performance and absorbs the vibration of the outer tub. The liquid balance ring absorbs vibration for the eccentric amount exceeding the total amount of the sphere. The balance ring device can suppress the vibration amplitude of the outer tub during startup and stable rotation, and realizes low vibration, low noise, and low cost. However, in the above-mentioned patent, once the washing machine is assembled, the balance ring has already determined the mass of the internal counterweight and cannot be adjusted based on the eccentric load amount of the washing machine. Further, in the operation process of the washing machine, it is necessary for the counterweight inside the balance ring to rotate together, which wastes driving power consumption of the motor.

  Considering this point, the present invention will be described.

Chinese patent application number 200910158225.9

  The object of the present invention is to overcome the deficiencies of the existing technology and provide a washing machine. The washing machine includes an outer tub and an inner tub, and a balance ring is provided at a clothing input port portion of the inner tub, so that there is no fixed filling in the balance ring, and the weight of the balance ring is reduced. During the operation of the washing machine, it is not necessary to rotate the filling inside the balance ring together, which reduces power consumption. Based on the measured eccentric load, an adaptive amount of water can be injected to balance the load. It solves the problem that the amount of filling inside the balance ring cannot be changed in a normal washing machine, accurately controls the equilibrium, reduces the number of times of even distribution, and greatly reduces the dehydration time.

  Another object of the present invention is to provide a control method for the washing machine.

  In order to realize the object, the present invention adopts the following technical solution. As for the washing machine, the washing machine includes an outer tub and an inner tub, and a balance ring is provided at a clothing input port portion of the inner tub, and the balance ring has a tubular structure. On the inner circumference of the balance ring, there is provided a water injection port that balances the eccentric load by putting water into the balance ring, and at least one drainage port that can be opened and closed is provided on the outer circumference.

  The water injection port is a circular water injection port of one circumference installed on the inner circumference of the balance ring, and water injection parts are provided corresponding to the water injection port. The water injection part is a pipe fixed to the outer tub or the casing of the washing machine, and one end of the pipe is inserted into the water inlet of the balance ring, and does not contact the wall of the balance ring, and the other end is tap water and And / or communicate with wash water pipes.

  The water injection component is a pipe fixedly connected to the outer tub, and a drainage chamber capable of storing a partial wash water is installed at the bottom of the outer tub. One end of the pipe is inserted into the water inlet of the balance ring and does not contact the wall of the balance ring, and the other end communicates with the drain chamber via a drain pump that can pump the water flow.

  A filter is installed at a connection portion between the drain chamber and the water injection component, and a water outlet connected to a drain pipe of the washing machine is further installed at the bottom of the drain chamber.

  A drainage port for discharging 2 to 10 balance liquids is provided on the outer circumference of the balance ring, and a drainage valve capable of controlling the opening and closing of the drainage port is provided at the drainage port.

  The drain valve has an automatic opening / closing structure, and the drain valve includes a spring and a blocking plate. The spring is located in the drain, and one end of the spring is connected to the outer end of the drain and the other end is connected to the blocking plate. The blocking plate is located inside the balance ring, and the shape of the blocking plate matches the shape of the drain. When the spring is in a free state, the drain port is kept open smoothly.

  The drain valve has an automatic opening / closing structure. The cross section of the drain port is “V” -shaped, and a movable spherical valve core is installed inside the “V” -shaped drain port.

  The washing machine control method balances the eccentric load of the inner tub during dehydration by pouring water into the balance ring from the water inlet of the balance ring.

  After the uniform distribution for dehydration, the wash water is discharged from the washing machine, and the eccentric load amount of the inner tub during dehydration is balanced by the wash water entering the balance ring from the water inlet of the balance ring. After dehydration is completed, the washing water in the balance ring is discharged from the drain.

  Wash water before even distribution for dehydration. When water is evenly distributed for dehydration, tap water adapted to the eccentric amount is injected into the balance ring from the water inlet of the balance ring based on the eccentric load amount of the inner tank. Balance the amount of eccentricity. After dehydration, tap water in the balance ring is drained from the drain.

  Before even distribution for dehydration, the wash water is drained and a partial wash water is stored in the drain chamber. When water is evenly distributed for dehydration, the drainage pump injects wash water that adapts to the eccentric load amount into the balance ring from the water inlet of the balance ring based on the eccentric load amount of the inner tank. Balance the eccentricity of the internal load. After dehydration, the washing water in the balance ring is discharged from the outlet.

  At the time of dehydration, the inner tub rotates at a high speed, and the centrifugal force generated by the rotation is greater than the resistance force of the spring. The blocking plate compresses the spring, and the blocking plate closely contacts the inner wall of the balance ring and seals the drain. At the end of dehydration, the inner tank gradually stops rotating, and the centrifugal force gradually decreases as the speed decreases. When the centrifugal force is smaller than the restoring force of the spring, the blocking plate returns to the original position by the restoring force of the spring, and the balance liquid inside the balance ring is discharged from the drain port. Alternatively, the centrifugal force generated by the high-speed rotation of the inner tank during dehydration is greater than the buoyancy of the spherical valve core, and the spherical valve core is in close contact with the inner wall of the “V” -shaped drain and seals the drain. At the end of dehydration, the inner tank gradually stops rotating, and the centrifugal force gradually decreases as the speed decreases. When the centrifugal force is smaller than the buoyancy of the spherical valve core, the spherical valve core is in a freely movable state, and the balance liquid inside the balance ring is discharged from the drain port.

  Regarding the washing machine, the washing machine includes an outer tub and an inner tub, and a balance ring is provided at an opening portion of the inner tub. The balance ring has an annular structure, and the balance ring has a hollow chamber. The washing machine is further provided with a water intake structure for injecting water into the hollow chamber to balance the eccentric load, and a drainage structure for discharging the water in the balance ring.

  The water intake structure extends from the balance ring of the opening portion at the front end of the inner tank to the inner tank shaft at the rear end of the inner tank along the outer surface of the inner tank side wall, and communicates with the water intake end of the washing machine through the inner tank shaft. . The drainage structure extends from the balance ring at the opening at the front end of the inner tank to the inner tank shaft at the rear end of the inner tank along the outer surface of the inner tank side wall, and communicates with the drain end of the washing machine through the inner tank shaft. .

  The intake structure is located at the rear of the washing machine, and includes an intake pump that transports a water flow, and an intake water channel that communicates with the intake pump and the balance ring and injects water into the balance ring. The drainage structure is located at the rear of the washing machine and includes a controllable stop valve that controls opening and closing of the drainage structure, and a drainage water channel that communicates with the controllable stop valve and the balance ring and drains water in the balance ring. .

  A drain outlet is installed on the outer circumference of the balance ring, one end of the drain channel is connected to the drain port, and the other end is connected to a controllable stop valve. A water intake is installed in a portion of the end face of the balance ring close to the inner circle of the balance ring, one end of the water intake channel is connected to the water intake, and the other end is connected to the water intake pump.

  The intake water channel is located on the outer surface of the inner tank side wall, and includes an intake pipe that rotates together with the inner tank, and a first rotary joint that is located inside the outer tank bush and is fixed and does not move. A first annular water tank is installed at the connecting portion between the inner tank shaft and the first rotary joint, the first annular water tank is connected to the intake pipe, and the other end of the first rotary joint is washed via the intake pump. Communicate with the intake end of the machine.

  The drainage channel is located on the outer surface of the inner tank side wall, and includes a drain pipe that rotates together with the inner tank, and a second rotary joint that is located inside the outer tank bush and is fixed and does not move. A second annular water tank is installed at the connecting portion between the inner tank shaft and the second rotary joint, the second annular water tank is connected to a drain pipe, and the other end of the second rotary joint is a controllable stop valve. To the drain end of the washing machine.

  At least one vent hole is provided on the inner circumference of the balance ring.

  The above washing machine control method is such that the water intake structure injects water into the balance ring to balance the eccentric load of the inner tub during dehydration, and the drainage structure discharges the water in the balance ring, Reduce the mass.

  At the time of uniform distribution for dehydration, the control panel of the washing machine calculates or measures the eccentric load inside the inner tub, and controls the water intake pump to send the water corresponding to the eccentric load into the balance ring. Balance the eccentricity of the load. After dehydration, the control panel of the washing machine is controlled to open a controllable stop valve, and the water in the balance ring is discharged from the drain end of the washing machine by the action of centrifugal force.

  The control panel of the washing machine controls the inner tub so that the rotational speed of the inner tub is increased to a higher rotational speed, and then injects water into the balance ring of the washing machine so as to balance the eccentric load. The higher rotational speed is a rotational speed higher than 75 rpm.

  Employing the above technical solution of the present invention brings about the following beneficial effects.

  1. There is no fixed packing inside the balance ring, and the weight of the balance ring is greatly reduced. There is no need to consider sealing, the balance ring manufacturing process is simplified, the manufacturing cost is reduced, and the production efficiency is improved.

  2. The drain valve of the balance ring of the present invention is automatically controlled by centrifugal force, does not require external control, and has a simple structure.

  3. During the operation of the washing machine of the present invention, it is not necessary to rotate the filling in the balance ring together, and power consumption is reduced.

  4. The washing machine of the present invention injects an adaptive amount of balance liquid based on the amount of eccentric load obtained by measurement, or injects water well into the balance ring through the intake and drainage channels. To balance the eccentric load. The amount of filling in the balance ring can be changed, too little filling to achieve the equilibrium effect, too much filling to prevent over-equilibration, and inside the balancing ring in a normal washing machine Solved the problem that the amount of filling could not be changed.

  5. The washing machine of the present invention can accurately control the balance, eliminate eccentricity, reduce vibration and noise due to dehydration, reduce the number of times of even distribution, and greatly reduce the dehydration time.

  6. In the balance ring of the present invention, the rotary joint and the annular water tank change the intake and drainage channels that rotate together with the inner tank to the fixed and non-movable intake and drainage ends, so that water injection and drainage are convenient. It is.

  Hereinafter, a specific implementation method of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a mounting structure diagram of a water inlet balance ring and a washing machine according to the present invention. FIG. 2 is an enlarged view of a portion A in FIG. FIG. 3 is a mounting structure diagram of a water filling type balance ring and a washing machine in another embodiment of the present invention. FIG. 4 is an enlarged view of a portion B in FIG. FIG. 5 is a schematic diagram for balancing internal load and balance water in the washing machine of the present invention. FIG. 6 is a dewatering flowchart of the washing machine of the present invention. FIG. 7 is a schematic view of attachment of a balance ring and a washing machine for spontaneously watering according to the present invention. FIG. 8 is an enlarged view of a portion A in FIG. FIG. 9 is an enlarged view of a portion B in FIG. FIG. 10 is an enlarged view of a portion C in FIG. FIG. 11 is a dehydration flowchart of the washing machine of the present invention.

  As for the washing machine of the present invention, as shown in FIG. 1, the washing machine includes an outer tub 13 and an inner tub 1, and a balance ring is provided at a clothing input port portion of the inner tub 1, and the balance ring is annular. The structure has a water inlet. A water injection port 2 is provided on the inner circumference of the balance ring to make water into the balance ring to balance the eccentric load, and at least one openable / closable drain port 8 is provided on the outer circumference. . During the washing and rinsing process of the washing machine, there is no water in the balance ring, and when the water is evenly distributed for dewatering, water enters the balance ring from the water inlet 2 and balances the eccentric load (see FIG. 5). about).

  The water injection port 2 is a one-round annular water injection port installed on the inner circumference of the balance ring, and a water injection component is provided corresponding to the water injection port. The water injection part 5 is a pipe fixed to the outer tub 13 or the casing of the washing machine, and one end of the pipe is inserted into the water injection port of the balance ring, and does not contact the balance ring, and the relative movement at the time of contact Prevents the generation of noise and the other end is connected to tap water and / or wash water. The eccentric load can be balanced with tap water and / or wash water.

  The water injection port 2 is a one-round annular water injection port installed on the inner circumference of the balance ring, and a water injection component is provided corresponding to the water injection port. The water injection part 5 is a pipe fixedly connected to the outer tub 13 and / or the casing of the washing machine, and one end of the pipe is inserted into the water inlet of the balance ring, and does not contact the wall of the balance ring. The relative movement of time prevents noise from occurring, and the other end communicates with tap water. The eccentric load can be balanced with tap water.

  The water injection component 5 is a pipe that is fixedly connected to the outer tub 13, and a drainage chamber 3 that can store a partial wash water is installed at the bottom of the outer tub 13. One end of the pipe is inserted into the water inlet of the balance ring and is not in contact with the balance ring, and the other end communicates with the drain chamber 3 via a drain pump 4 that can pump the water flow. When the washing water in the washing tub 1 is discharged, the washing water is partially stored in the drainage chamber 3, and when the water is evenly distributed for dehydration, the washing machine discharges a corresponding amount of washing water based on the amount of eccentric load inside. Pump and place in balance ring to balance eccentric load.

  A connecting portion between the drainage chamber 3 and the water injection component has a slope, a filter 6 is installed at the connecting portion, and a water outlet 7 connected to a drainage pipe of a washing machine is further installed at the bottom of the drainage chamber 3. The filter acts to filter lint and prevents lint in the wash water from entering the balance ring pipe 5 and clogging the balance ring pipe 5. The outlet 7 at the bottom of the drainage chamber 3 can discharge excess washing water after the uniform distribution for dehydration is completed when washing water is no longer needed inside the balance ring.

  A drainage port 8 for discharging 2 to 10 balance liquids is provided on the outer circumference of the balance ring, and a drainage valve 9 capable of controlling the opening and closing of the drainage port 8 is provided at the drainage port. The number of the drain ports 8 is preferably three, and is evenly distributed on the outer circumference of the balance ring.

  The drain valve has an automatic opening / closing structure, and the drain valve 9 includes a spring 10 and a blocking plate 11. The spring 10 is located in the drain port 8, one end of the spring 10 is connected to the outer end of the drain port 8, and the other end is connected to the blocking plate 11. The blocking plate 11 is located inside the balance ring and has a certain distance between the blocking plate 11 and the inner wall of the balance ring.

  The shape of the blocking plate 11 matches the shape of the drain port 8, and the area of the blocking plate 11 is larger than the area of the drain port. The length of the spring 10 in the free state is longer than the thickness of the balance ring, and the length in the state compressed to the limit is shorter than the thickness of the balance ring. When the washing tub 1 does not rotate, the spring 10 is in a naturally extended state and has a certain distance between the blocking plate 11 and the inner wall of the balance ring, that is, the drain valve 9 is open. When the washing inner tub 1 rotates, the blocking plate 11 compresses the spring 10 until the blocking plate 11 comes into close contact with the inner wall of the balance ring, and the drain valve 9 is closed by the action of centrifugal force.

  The drain valve 9 may be an electromagnetic valve, and the electromagnetic valve is electrically connected to a control panel of the washing machine, and the opening and closing of the electromagnetic valve is controlled by an electromagnetic signal.

  The control method of the washing machine having the water inlet balance ring balances the eccentric load of the inner tub 1 during dehydration by pouring water into the balance ring from the water inlet 2 of the balance ring.

  After the uniform distribution for dehydration, the wash water is discharged from the washing machine, and the eccentric load amount of the inner tub 1 during dehydration is balanced by the wash water entering the balance ring from the water inlet 2 of the balance ring. After dehydration, the washing water in the balance ring is discharged from the drain port 8.

  Wash water before even distribution for dehydration. At the time of uniform distribution for dehydration, the washing machine calculates the eccentric load amount of the inner tub 1 and injects tap water corresponding to the eccentric amount into the balance ring from the water inlet 2 of the balance ring. The amount of eccentricity of the load inside the tank 1 is balanced. After dehydration is completed, tap water in the balance ring is discharged from the drain port 8.

  Before even distribution for dehydration, the wash water is drained and a partial wash water is stored in the drain chamber. At the time of uniform distribution for dehydration, the washing machine calculates the eccentric load amount of the inner tub 1, and the drainage pump 4 injects wash water corresponding to the eccentric load amount into the balance ring from the water inlet 2 of the balance ring. The amount of eccentricity of the load inside the inner tank 1 during dehydration is balanced. After dehydration, the washing water in the balance ring is discharged from the drain port 8.

  At the time of dehydration, the inner tub 1 rotates at a high speed, and the centrifugal force generated by the rotation is greater than the resistance force of the spring 10, the blocking plate 11 compresses the spring 10, and the blocking plate 11 adheres closely to the inner wall of the balance ring. Seal. When the dehydration is finished, the inner tank 1 gradually stops rotating, and the centrifugal force gradually decreases as the speed decreases. When the centrifugal force is smaller than the recovery force of the spring 10, the blocking plate 11 returns to the original position by the recovery force of the spring 10, and the balance liquid inside the balance ring is discharged from the drain port 8.

  As for the washing machine of the present invention, as shown in FIG. 7, the washing machine includes an outer tub 13 and an inner tub 1, and a balance ring is provided at an opening portion of the inner tub 1. The balance ring has an annular structure and is a balance ring that spontaneously injects water, and the inside of the balance ring is a hollow chamber. The washing machine is further provided with a water intake structure for injecting water into the hollow chamber to balance the eccentric load, and a drainage structure for discharging the water in the balance ring. At the time of uniform distribution for dehydration of the washing machine, the control panel injects water into the balance ring by the water intake structure based on the magnitude of the eccentric load, and balances the eccentric load (see FIG. 5). After dehydration, the drainage structure drains the water in the balance ring, so there is no need to rotate the filling in the balance ring when washing and rinsing the washing machine, reducing the mass of the inner tub and driving consumption. Reduce power.

  The water intake structure extends from the balance ring of the opening at the front end of the inner tub 1 to the inner tub shaft at the rear end of the inner tub 1 along the outer surface of the inner tub 1 side, and takes in the water of the washing machine through the inner tub shaft. Communicate with the edge. The drainage structure extends from the balance ring at the opening at the front end of the inner tub 1 to the inner tub shaft at the rear end of the inner tub 1 along the outer surface of the inner tub 1, and drains the washing machine through the inner tub shaft. Communicate with the edge.

  The water intake structure includes a water intake pump 23 that is located at the rear of the washing machine and transports a water flow, and a water intake channel that communicates with the water intake pump 23 and the balance ring and injects water into the balance ring. The drainage structure is located at the rear of the washing machine, and has a controllable stop valve 21 that controls the opening and closing of the drainage structure, a drainage water channel that discharges water in the balance ring through the controllable stop valve 21 and the balance ring. including. A water intake pump 23 can provide power to send water into the balance ring, and a controllable stop valve 21 controls the drainage structure so that no filling is required in the balance ring. Drain the water. The balance ring rotates the filling and prevents wasting energy. The controllable stop valve 21 may be an electromagnetic valve, which is electrically connected to a washing machine control panel.

  As shown in FIGS. 9 and 10, a drain port 8 is installed on the outer circumference of the balance ring, one end of the drain channel is connected to the drain port 8, and the other end is connected to a controllable stop valve 21. A water intake 24 is installed near the balance ring inner circle on the end face of the balance ring, one end of the water intake channel is connected to the water intake 24, and the other end is connected to the water intake pump 23. The drain 8 is installed on the outer circumference of the balance ring (see FIG. 10), and when the controllable stop valve 21 is opened, the water in the balance ring acts as a centrifugal force as it rotates with the balance ring. The drainage pump is not necessary. The water intake 24 is installed on the end face of the balance ring, preferably the front end face of the balance ring (see FIG. 9), which is convenient for water flow. Since it is installed near the inner circle of the balance ring (see FIG. 9), a relatively large amount of water can be put inside the balance ring, and a relatively large eccentric load is balanced.

  The intake water channel includes an intake pipe 22 that is located outside the inner tank 1 and rotates together with the inner tank 1, and a first rotary joint 28 that is located inside the outer tank bush 30 and is fixed and does not move. . A first annular water tank 29 is installed at a connection portion between the inner tank shaft 31 and the first rotary joint 28, and the first annular water tank 29 is connected to the intake pipe 22. The other end of the first rotary joint 28 communicates with the intake end of the washing machine via the intake pump 23.

  The drainage channel is located outside the inner tub 1 and includes a drain pipe 20 that rotates together with the inner tub 1 and a second rotary joint 26 that is located inside the outer tub bush 30 and is fixed and does not move. . A second annular water tank 27 is installed at a connection portion between the inner tank shaft 31 and the second rotary joint 26, and the second annular water tank 27 is connected to the drain pipe 20. The other end of the second rotary joint 26 communicates with the drain end of the washing machine via a controllable stop valve 21.

  Since the intake port 24 and the drain port 8 are installed at a fixed position on the balance ring, when the balance ring rotates, the intake port 24, the intake pipe 22, the drain port 8, and the drain pipe 20 rotate together with the balance ring. The connection between the intake end and the drain end fixed to the washing machine is inconvenient. The present invention employs a rotary joint and an annular water tank and cleverly converts the rotary end to a fixed end.

  As shown in FIG. 8, the first rotary joint 28 in the intake pipe is a pipe joint, and is installed in the outer tank bush 30. One end is exposed outside the outer tank bush 30, and the other end is the outer tank bush 30. It connects with the inner tank axis | shaft 31. A first annular water tank 29 is installed at a connection portion between the inner tank shaft 31 and the first rotary joint 28, and the first annular water tank 29 and the inner tank are connected via a pipe installed inside the inner tank shaft 31. A point portion on the outer surface of the shaft 31 is connected. Since the inner tank shaft 31 rotates the inner tank 1 and the inner tank 1 is fixedly connected to the balance ring, a point on the outer surface of the inner tank shaft 31 and the intake port 24 of the balance ring are relatively stationary. A point on the outer surface of the inner tank shaft 31 and a water intake 24 of the balance ring are connected via the water intake pipe 22. The water entering from the first rotary joint 28 exists in the first annular water tank 29 for a while, and the water existing in the first annular water tank 29 for a while can enter the balance ring.

  As shown in FIG. 8, the structure of the drain pipe is the same as the structure of the intake pipe. The second rotary joint 26 is a pipe joint and is installed in the outer tank bush 30, one end is exposed to the outside of the outer tank bush 30, and the other end is connected to the inner tank shaft 31 through the outer tank bush 30. A second annular water tank 27 is installed at a connection portion between the inner tank shaft 31 and the second rotary joint 26, and the second annular water tank 27 and the inner tank are connected via a pipe installed inside the inner tank shaft 31. A point portion on the outer surface of the shaft 31 is connected. Since the inner tank shaft 31 rotates the inner tank 1 and the inner tank 1 is fixedly connected to the balance ring, a point on the outer surface of the inner tank shaft 31 and the drain port 8 of the balance ring are relatively stationary. A point on the outer surface of the inner tank shaft 31 and the drain port 8 of the balance ring are connected via the drain pipe 20. The water discharged from the drain port 8 passes through the drain pipe 20 and the pipe installed inside the inner tank shaft 31 and is present in the second annular water tank 27 for a while, and in the second annular water tank 27 for a while. The water present can pass through the second rotary joint 26 and further drain through the controllable stop valve 21.

  At least one vent hole 25 is provided on the inner circumference of the balance ring. It is convenient to adjust the atmospheric pressure and allow the intake pump 23 to send water into the balance ring.

  As shown in FIGS. 1 and 2, the washing machine having the water inlet type balance ring of the present embodiment is a drum type washing machine, and the water inlet type balance ring is fitted into the clothing inlet of the inner tub 1, Connected to the tank 1. The diameter of the inner circumference of the water inlet type balance ring is larger than the diameter of the water inlet of the inner tub 1 to ensure that washing water can enter the balance ring.

  In this embodiment, the water injection component 5 and the drain pump 4 are not provided. The wash water partially enters the balance ring, the partial wash water is located inside the balance ring, and the partial wash water moves together when the balance ring rotates. When the speed is relatively high, the wash water that moves together when the balance ring rotates rotates closely with the balance ring in close contact with the outer circumference inside the balance ring, thereby balancing the eccentric load (FIG. 5). See).

  The washing machine of this embodiment discharges washing water from the washing machine after the uniform distribution for dehydration. The amount of eccentric load of the inner tub 1 during dehydration is balanced by the wash water that has entered the balance ring from the water inlet 2 of the balance ring. After dehydration, the washing water in the balance ring is discharged from the drain port 8.

  As shown in FIGS. 3 and 4, the washing machine having the water inlet type balance ring of the present embodiment is a drum type washing machine. The balance ring is installed in a clothing input port portion of the washing machine inner tub 1, and the balance ring has an annular structure. Inside the balance ring, along the inner circumference, washing water is put into the balance ring, and a water injection port 2 for balancing the eccentric load inside the inner tub 1 is provided in one circuit, and the water injection port is an annular balance ring. It is a water injection port of one circumference distributed in the inner circumference of. The water injection component 5 is fixed and does not move, and can be installed at the bottom of the washing machine. When the inner tub 1 rotates, the water injection component 5 and the balance ring rotate relative to each other, but the water injection component 5 can be inserted into the balance ring throughout. In the washing and rinsing process of the washing machine, there is no water in the balance ring, and when the water is evenly distributed for dehydration, the wash water enters the balance ring from the water inlet 2 to balance the eccentric load (FIG. 5). See).

  A water injection component 5 is installed in the drainage chamber 3. In the water injection component 5, the water injection port 2 of the balance ring is interposed between the balance ring and the drain chamber 3 and the balance ring are connected, and the water discharge pump 4 is installed in the water injection component 5. When draining the wash water in the inner tub 1, the water is partially stored in the drain chamber 3. At the time of uniform distribution for dewatering, the washing machine pumps a corresponding amount of washing water into the balance ring based on the amount of eccentric load inside, and balances the eccentric load. A connecting portion between the drainage chamber 3 and the water injection component has a slope, a filter 6 is installed at the connecting portion, and a water outlet 7 connected to a drainage pipe of a washing machine is further installed at the bottom of the drainage chamber 3. The outlet 7 at the bottom of the drainage chamber 3 can discharge the excess washing water when the washing water is not required inside the balance ring after the uniform distribution for dehydration is completed.

  Outside the balance ring, at least one drainage port 8 for discharging the balance liquid is installed in the radial direction along the outer diameter of the ring. A drain valve 9 is installed at the drain port, and the drain valve 9 has an automatic opening / closing structure. The drain valve 9 closes the drain valve by the action of centrifugal force when the washing machine inner tub 1 rotates at high speed. After completion of the dehydration, the rotation speed of the inner tub 1 gradually decreases, the centrifugal force gradually decreases, the drain valve 9 opens, and the washing water inside the balance ring is discharged.

  Before even distribution for dehydration, the wash water is drained and a partial wash water is stored in the drain chamber. At the time of uniform distribution for dehydration, the washing machine calculates the eccentric load amount of the inner tub 1, and the drainage pump 4 injects wash water corresponding to the eccentric load amount into the balance ring from the water inlet 2 of the balance ring. Thus, the eccentric load inside the inner tank 1 during dehydration is balanced. After dehydration, the washing water in the balance ring is discharged from the drain port 8.

  The water inlet type balance ring of this embodiment can also be used in a pulsator type washing machine, and when used in a pulsator type washing machine, the water inlet type balance ring is installed at the top of the inner tank. A drainage chamber is installed at the bottom of the washing machine, connected to the inside of the balance ring via a water injection part and a drain pump, and a drain valve is installed at the drain port portion of the balance ring.

  As shown in FIG. 2, the drain valve of the present embodiment includes a spring 10, a blocking plate 11 and a second blocking plate 12 positioned at both ends of the spring. A connecting component 15 is installed between the blocking plate 11 and the second blocking plate 12, the spring 10 covers the connecting component 15, and the spring 10 and the connecting component 15 are located in the drain port 8. One end of the spring 10 is connected to the outer end of the drain port 8, and the other end is connected to the blocking plate 11. The blocking plate 11 is positioned inside the balance ring, and the second blocking plate 15 is positioned outside the balance ring. There is a projection 14 that has a certain distance between the blocking plate 11 and the inner wall of the balance ring, and is positioned near the outside of the drain port 8 of the balance ring. The spring 10 is positioned and fixed, and the spring 10 is connected to the projection 14. Is done.

  The shape of the blocking plate 11 matches the shape of the drain port 8, and the area of the blocking plate 11 is larger than the area of the drain port. The length of the spring 10 in the free state is longer than the thickness of the balance ring, and the length in the state compressed to the limit is shorter than the thickness of the balance ring. When the inner tub 1 does not rotate, the spring 10 is in a naturally extended state and has a certain distance between the blocking plate 11 and the inner wall of the balance ring, that is, the drain valve 9 is open. When the inner tank 1 rotates, due to the action of centrifugal force, the blocking plate 11 compresses the spring 10 until the blocking plate 11 comes into close contact with the inner wall of the balance ring, and the drain valve 9 is closed.

  The number of the drainage ports 8 is preferably three and is evenly distributed on the outer circumference of the balance ring.

  As shown in FIG. 4, the drain valve of the present embodiment has an automatic opening / closing structure. The drain port 8 has a “V” cross section, and a movable spherical valve core 18 is installed inside the “V” drain port. The density of the spherical valve core 18 is smaller than the density of water and can float in water. At the time of dehydration, the inner tub 1 rotates at a high speed, and the centrifugal force generated by the rotation is larger than the buoyancy of the spherical valve core 18, and the spherical valve core 18 is in close contact with the inner wall of the “V” shaped drainage port to seal the drainage port. When the dehydration is finished, the inner tank 1 gradually stops rotating, and the centrifugal force gradually decreases as the speed decreases. When the centrifugal force is smaller than the buoyancy of the spherical valve core 18, the spherical valve core 18 is in a freely movable state, and the balance liquid inside the balance ring is discharged from the drain port 8.

  The number of the drain ports 8 is preferably four, and is evenly distributed on the outer circumference of the balance ring.

  The water intake system of the balance ring and the drain system of the drain can be arbitrarily combined.

  In the washing machine (not shown) having the water inlet type balance ring of the present embodiment, the water inlet 2 of the balance ring is a circular water inlet of one circumference installed on the inner circumference of the balance ring. Water injection parts are provided correspondingly. The water injection component is a pipe fixedly connected to the outer tub 13 and / or the casing of the washing machine, and one end of the pipe is inserted into the water injection port of the balance ring and is not in contact with the balance ring. It prevents the noise from being generated due to dynamic exercise, and the other end communicates with tap water. The eccentric load can be balanced with tap water.

  Drain the wash water before even distribution for dehydration. When evenly distributed for dehydration, the washing machine calculates the eccentric load amount of the inner tub 1 and injects tap water corresponding to the eccentric amount into the balance ring from the water inlet 2 of the balance ring. The amount of eccentricity of the load inside the tank 1 is balanced. After dehydration is completed, tap water in the balance ring is discharged from the drain port 8.

  In the said Example 2 and Example 4, based on the amount of eccentricity, it can pour into a balance ring and can balance the amount of eccentricity. In the first embodiment, a corresponding amount of water cannot be added based on the amount of eccentricity, but the amount of eccentricity can be balanced by adding partial water.

  As shown in FIG. 6, the washing machine having the water inlet type balance ring calculates the eccentric load amount in the inner tub 1 at the time of uniform distribution for dehydration, and reaches the preset equilibrium with the load. The drainage pump 4 sends the washing water into the balance ring.

  At the time of dehydration, the inner tank rotates at a high speed, and the blocking plate 11 compresses the spring 10 by the centrifugal force generated by the rotation, and the blocking plate 11 comes into close contact with the inner wall of the balance ring to seal the drain port 8. Until the dehydration is completed, the wash water inside the balance ring balances the eccentricity of the load.

  When the dehydration is finished, the inner tank 1 gradually stops rotating, and the centrifugal force gradually decreases as the speed decreases. When the centrifugal force is smaller than the restoring force of the spring 10, the blocking plate 11 returns to the original position by the restoring force of the spring 10, and the washing water inside the balance ring is discharged from the drain port 8.

  The control method of a washing machine having a balance ring that spontaneously injects water is such that the water intake structure injects water into the balance ring, thereby balancing the eccentric load of the inner tub 1 during dehydration, and the drainage structure to the water in the balance ring. The mass of the balance ring is reduced by discharging the.

  A balance ring for spontaneously pouring water is installed at the opening of the inner tub 1 of the washing machine, and the balance ring is connected to the inner tub 1. The intake end of the washing machine communicates with the balance ring via the intake pump 23 and the intake water channel, and the balance ring communicates with the drain end of the washing machine via the drain water channel and the controllable stop valve 21. At the time of uniform distribution for dehydration, the control panel of the washing machine calculates or measures the eccentric load inside the inner tub, and controls the water intake pump to send the water corresponding to the eccentric load into the balance ring. Balance the eccentricity of the load. After dehydration is completed, the control panel of the washing machine is controlled to open the controllable stop valve 21, and the water in the balance ring is discharged from the drain end of the washing machine by the action of centrifugal force.

  The control panel of the washing machine controls the inner tub so that the rotational speed of the inner tub is increased to a higher rotational speed, and then injects water into the balance ring of the washing machine so as to balance the eccentric load. The higher rotational speed is a rotational speed higher than 75 rpm.

  As shown in FIG. 11, when the water is evenly distributed for dehydration, the washing machine control panel calculates or measures the amount of eccentric load inside the inner tub and controls the water intake pump to balance the water until a preset equilibrium is reached. Send to the inside of the ring. When dehydration is completed, the control panel controls to open a controllable stop valve and drains the water in the balance ring.

  The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make various modifications and improvements without departing from the principle of the present invention, which should be regarded as the protection scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Inner tank 2 Water inlet 3 Drain chamber 4 Drain pump 5 Water injection parts 6 Filter 7 Water outlet 8 Drain outlet 9 Drain valve 10 Spring 11 Shut-off plate 12 Second shut-off plate 13 Outer tank 14 Protrusion 15 Connection part 16 Load 17 Balance water 18 spherical valve core 20 drain pipe 21 controllable stop valve 22 water intake pipe 23 water intake pump 24 water intake 25 air vent 26 second rotary joint 27 second annular water tank 28 first rotary joint 29 first annular water tank 30 Outer tank bush 31 Inner tank shaft

Claims (20)

Outer tub (13) includes an inner tank (1), a washing machine balance ring is provided on the garment inlet portion of the inner tub (1), said balance ring is a circular ring structure, said balance ring inside circumference of the water put into the balance ring and balanced solution, water inlet to the amount of eccentric load equilibrium (2) is provided, at least one closable discharge port on the outer circumference (8) A drainage valve (9) capable of controlling the opening and closing of the drainage port (8) is provided at the drainage port (8),
The drain valve (9) includes a spring (10) and a blocking plate (11), the spring (10) is located in the drain port (8), and one end of the spring (10) is a drain port (8). The other end is connected to the blocking plate (11), the blocking plate (11) is located inside the balance ring, and the shape of the blocking plate (11) is the shape of the drain port (8). Conforming to the shape, the length of the spring (10) in the free state is longer than the thickness of the side wall of the balance ring,
A second blocking plate (12) is provided outside the outlet of the drain port (8), and a connecting member (15) is disposed between the blocking plate (11) and the second blocking plate (12). The washing machine is characterized in that the spring (10) covers the connecting member (15) in a sleeve shape . Said water inlet (2) is 1 lap annular water inlet to be installed inside the circumference of the balance ring, the water injection part (5) is provided in correspondence with said water inlet (2), said water injection part ( 5) a a pipe which is fixed to the housing of the outer tub (13) or a washing machine, one end of the pipe is inserted the into water inlet (2) of the balance ring, yet contact with the walls of said balance ring The washing machine according to claim 1, wherein the other end communicates with a pipe for tap water and / or washing water. Wherein a pipe injection part (5) is fixed connected to the outer tub (13), the bottom of the outer tub (13), the drainage chamber can be placed accumulate partial washing water (3) is installed is, one end of the pipe is inserted into the water inlet of said balance ring (2), moreover not in contact with the walls of said balance ring, the other end via a drainage pump which can send water pump (4) wherein the communicating with the drainage chamber (3) Te, washing machine according to claim 2. The drainage chamber (3) and the connection portion of the injection part (5) filter (6) is installed, the drainage chamber (3) bottom washing machine drain pipe lead water outlet (7) is further installed The washing machine according to claim 3, wherein: Wherein the outer circumference of balancing rings, characterized in that the water outlet for discharging 2-10 balance liquid (8) is provided, the washing machine according to claim 1. At least one of the drain ports (8) has a "V" shape, and a movable spherical valve core (18) is installed inside the "V" drain port. Item 6. A washing machine according to Item 5. By water injection into the balance ring from said water inlet of said balance ring (2), characterized by the eccentric load of the inner tub during dehydration (1) equilibrium of claim 1-6 The method for controlling a washing machine according to any one of the preceding claims. After even distribution for dehydration, the washing water is discharged from the washing machine, the wash water entering into the balance ring from said water inlet of said balance ring (2), the eccentric load of the inner tub during dehydration (1) the amount equilibrium, after completion of the dehydration, characterized by discharging the washing water in said balance ring from the drain opening (8), the method according to claim 7. Before even distribution for dehydration, washing water was discharged, when uniform distribution for dehydration, based on the eccentric load of the inner tub (1), the tap water to accommodate eccentricity said balance ring water inlet ( by injecting into said balance ring 2), the inner tub at the time dehydrated (1) to balance the amount of eccentricity of the internal load, after completion of the dehydration, the water outlet tap water in said balance ring (8) The control method according to claim 7 , wherein the control method is discharged from the waste water. Before even distribution for dehydration, washing water was discharged, a portion of the washing water placed accumulated in the drainage chamber, when uniform distribution for dehydration, based on the eccentric load of the inner tub (1), the drainage pump (4) by injecting from the water injection port of said balance ring wash water to adapt to the amount of eccentric load (2) in said balance ring, the inner tub (1) the amount of eccentricity of the internal load during dewatering the equilibrated, after completion of the dehydration, characterized by discharging the washing water in said balance ring from the drain opening (8), the method according to claim 7. Dehydration, the inner tub (1) rotates at high speed, the centrifugal force generated by rotation is greater than the resistance force of the spring (10), the blocking plate (11) compresses the spring (10), the blocking plate (11) the sealed the water outlet in close contact with the balance ring inner wall (8), dehydration ends, the inner tub (1) gradually stop rotating, gradually lowering the centrifugal force with a decrease in the rate of and, when the centrifugal force is less than the resilience of the spring (10), said spring (10) of return to the blocking plate (11) is original position by resilience, balance liquid in the said balance ring the drain outlet The control method according to claim 8 , wherein the control method is discharged from (8). At the time of dehydration, the centrifugal force generated by the high-speed rotation of the inner tank (1) is larger than the buoyancy of the spherical valve core (18), and the spherical valve core (18) is in close contact with the inner wall of the “V” shaped drainage port. 8) When the dehydration is completed, the inner tub (1) gradually stops rotating, the centrifugal force gradually decreases as the speed decreases, and the centrifugal force is smaller than the buoyancy of the spherical valve core (18). The control method according to claim 6, characterized in that the spherical valve core (18) is in a freely movable state, and the balance liquid inside the balance ring is discharged from the drain (8). Outer tub (13) includes an inner tank (1), a washing machine balance ring is provided in an opening portion of the inner tub (1), wherein a balance ring is annular structure, said balance ring interior a hollow chamber, the washing machine, and water injection into the hollow chamber, and intake structure for the eccentricity load balancing, and a drainage structure for discharging the water in the balance rings are further installed,
The drainage structure includes a drainage channel, the drainage channel is located on the outer surface of the side wall of the inner tank (1), and a drain pipe (20) that rotates together with the inner tank (1), and an outer tank bush ( 30) a second rotary joint (26) which is located inside and is fixed and does not move; and a second annular water tank at a connecting portion of the inner tank shaft (31) and the second rotary joint (26). (27) is installed, the second annular water tank (27) is connected to the drain pipe (20), and one end of the second rotary joint (26) communicates with the second annular water tank (27). The other end of the second rotary joint (26) communicates with the drain end of the washing machine via a controllable stop valve (21),
The washing machine according to claim 1, wherein at least one ventilation hole is provided on the inner circumference of the balance ring. The intake structure, along the outer surface of the inner tub (1) sidewall from the balance ring opening of the inner tub (1) the front end, extends to the inner tub (1) rear inner tank axis, through the intake end of the washing machine through the inside of the inner tub shaft, the drainage structure, the inner tub (1) the inner tub from the balance ring opening of the front end (1) along the outer surface of the sidewall, the extends to the inner tub (1) the inner tub shaft of the rear end, and wherein the communicating with the drainage end of the washing machine through the inside of the inner tub shaft, the washing machine according to claim 13. The intake structure, located in the washing machine the rear, the intake pump (23) for transporting water, through said intake pump (23) and said balance ring, and a water intake canals that water injection into the balance in the ring, wherein drainage structure is positioned in the washing machine the rear, the a controllable said stop valve for controlling the opening and closing of the drainage structure (21), through a controllable the stop valve (21) and the balance ring, in the compensation rings The washing machine according to claim 14, further comprising a drainage water channel for discharging water. Said outer circumferential drainage port of the balance ring (8) is installed, the connection to one end of the drainage canals the drain opening (8), the other end connect with controllable the stop valve (21), said balance ring is an end face intake in a portion close to the compensation rings within a circle (24) is placed, one end of the intake water passage leads to the intake (24), the other end and wherein the leading and the water intake pump (23) The washing machine according to claim 15. The intake water channel is positioned on the outer surface of the inner tub (1) side walls, intake pipe which rotates together with the inner tub (1) and (22), the outer tub bush (30) located inside, is fixed and a motionless first rotary joint (28), a first annular water tank (29) is installed in the connection portion of the inner tub shaft (31) and the first rotary joint (28), said first The annular water tank (29) is connected to the intake pipe (22), and one end of the first rotary joint communicates with the first annular water tank (29), and the other end of the first rotary joint (28). 17. The washing machine according to claim 16, characterized in that communicates with the water intake end of the washing machine via a water intake pump (23). When the intake structure pours water into the balance ring, the eccentric load of the inner tank (1) during dehydration is balanced, and the drainage structure discharges water from the balance ring, thereby reducing the mass of the balance ring. The method for controlling a washing machine according to claim 13 , wherein: At the time of uniform distribution for dehydration, the control panel of the washing machine calculates or measures the eccentric load inside the inner tub, and controls the water intake pump to send the water corresponding to the eccentric load into the balance ring. After the dehydration is completed, the control panel of the washing machine is controlled to open the controllable stop valve (21), and the water in the balance ring is drained by the action of centrifugal force. The control method according to claim 18 , wherein discharge is performed from an end. The control panel of the washing machine controls the inner tub so that the rotational speed of the inner tub is increased to a higher rotational speed, and then controls the water so as to balance the eccentric load by pouring water into the balance ring of the washing machine. 20. A control method according to claim 19 , characterized in that the higher rotational speed is a rotational speed higher than 75 rpm.