JP6145713B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing and drying machine that suppresses foreign matter, lint, and the like from adhering and accumulating on a drainage path and a drainage port.

  Conventionally, this type of washing and drying machine uses a water-cooling dehumidification feed water to cool a heat exchanger in a circulation path for drying clothes, and discharges foreign matter, lint, and the like that have adhered and accumulated in the drainage path and drainage port. Those are known (for example, see Patent Document 1).

  FIG. 6 is a longitudinal side view showing the overall configuration of the washing / drying machine according to the first embodiment of the present invention, and FIG. 7 is a block diagram of the washing / drying machine according to the first embodiment of the present invention.

  1 and 2, the casing 1 elastically supports the outer tub 3 with a plurality of suspensions 2 inside, so that vibrations of the outer tub 3 during dehydration can be absorbed by the suspension. An inner tank 4 is disposed in the outer tank 3, and a rotary blade 7 is disposed on the inner bottom of the inner tank 4. A washing / dehydrating shaft 8 is connected to the rotary wing 7 and the inner tub 4, and the rotation of the motor 10 fixed to the bottom of the outer tub 3 by the fixing portion 23 is switched by the clutch 9, whereby the inner tub 4 and the rotary wing 4 are switched. 7 are individually driven to rotate. A balancer 6 for suppressing vibration when the inner tub 4 is rotated is disposed at the upper part of the inner tub 4, and a large number of small holes 5 are formed on the side surface.

  The lid 16 and the inner lid 12 provided on the upper surface of the housing 1 are opened, the laundry and detergent are put into the inner tub 4, and the operation is started. When the operation is started, water is supplied into the inner tub 4 from the water supply valve 15, the rotary blade 7 is rotationally driven by the motor 10, and the washing process is performed by stirring the water flow and the laundry to be washed by the rotation of the rotary blade 7. After the washing process for a predetermined time, the drain valve 13 operates, and the dirty water after washing in the outer tub 3 is drained through the drain hose 22.

  After the drainage is completed, a rinsing process is performed. In the rinsing step, the water newly supplied from the water supply valve 15 and the laundry are agitated by the inner tub 4 and the rotary blade 7. When the rinsing process is completed, a dehydrating process is performed. In the dehydration process, the rotation of the motor 10 is switched to the inner tank 4 by the clutch 9, and the inner tank 4 is rotationally driven. The water contained in the laundry 25 by the rotational drive of the inner tub 4 is discharged into the outer tub 3 from the small holes 5 formed in the peripheral surface of the inner tub 4 by centrifugal force.

  After the dehydration process is completed, a drying process is performed. When entering the drying process, the motor 10 is driven and transmitted to the rotary blade 7, and the rotary blade 7 is slowly rotated, whereby the clothes stuck to the inner wall of the inner tub 4 are peeled off by the centrifugal force during dehydration. While the inner tub 4 is rotated at a low speed for the period of time, a rotatory drying process for drying the clothes is performed. Further, after that, the rotating blade 7 is instantaneously and strongly rotated in the forward and reverse directions, and a stirring / drying process is performed in which the clothes are dried while being stirred so as to be lifted upward in the inner tub 4.

  At the same time, by driving the blower fan 30, the air is sucked from the inside of the housing 1, and the sucked drying air becomes warm air heated through the heater 32 and is sent from the warm air outlet 33. It is fed into the inner tank 4. The warm air blown into the inner tub 4 from the warm air outlet 33 evaporates moisture from the clothing and then circulates from the drain port provided at the lower portion of the outer tub 3 to the heat exchanger 35. The hot and humid air from which moisture is evaporated from the clothing is naturally cooled and dehumidified when passing through the outer tub 3 and the heat exchanger 35, and returns to the blower fan 30 and the heater 32 again. Thereby, drying advances. The temperature of the circulating hot air is detected by the temperature sensor 31, and the temperature of the heater 32 is controlled.

  In the drying process, the water-cooled water supply valve 36 supplies water from the water supply port 37 to the heat exchanger 35 to cool the heat exchanger 35, thereby improving the dehumidification efficiency from the high-temperature and high-humidity air passing through the heat exchanger 35. Yes. In this state, the drain valve 13 is opened, and the water supplied from the water-cooled water supply valve 36 and the dehumidified water are drained.

  In the drying process, lint generated from the clothing is captured by a filter (not shown) that is detachably disposed on the upstream side of the heater 32 in the circulation path of the dry air. Moreover, the lint adhering to the inside of the heat exchanger 35 is washed away by the water supplied from the water-cooled water supply valve 36.

  A series of steps from washing to drying is controlled by the control means 11 and executed fully automatically.

Japanese Patent Laid-Open No. 2004-236800

  However, in the conventional configuration, the lint adhering to the inner surface of the heat exchanger 35 is washed away by the water supplied from the water-cooled water supply valve 36, but the amount of water is small. There is a problem that lint and the like cannot be washed away sufficiently.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a washing / drying machine that improves the ability to remove foreign matters, lint, and the like that have adhered to and accumulated in a drainage channel or drainage port.

Wherein in order to solve the conventional problem, washing and drying machine of the present invention, a washing tub and a water supply means for supplying water to the washing tub, a pre-Symbol washing tub bottom communicates with the washing tub top the washing a circulation path of the air in the tank is circulated, is disposed in the circulation path, a heater for heating the air supplied to the washing tub from the circulation path, a blower fan for generating a circulating air to the circulation path, a water cooling water supply means for supplying cooling water to the circulation path, provided to communicate with the lower the circulation path, a drainage path for draining the water in the washing tub bottom and in the circulation path, provided in the drainage path comprising a closable drainage means is, the water supply means, said draining means, said heater, the blower fan, the control water cooling water supply means, the washing process, rinsing process, dewatering process, and a control means for performing a drying step, a , wherein, prior to In the drying step, in a state where said operating the water cooling water supply means, said water discharge means by closing a predetermined time, the upstream side the drainage path than said drainage means water supplied from said water cooling water supply means, the circulating It accumulates in the lower part of the path and in the bottom of the washing tub, and after the predetermined time has elapsed, the drainage means is opened, and the blower fan is stopped while the drainage means is closed .

As a result, the water supplied by the water-cooled water supply means accumulates in the lower part of the fuselage while the drainage means is blocked, and when the drainage means is opened thereafter, foreign matter, lint, etc. attached to the drainage passage or drainage port by the water accumulated in the lower part of the fuselage. Discharged. Moreover, generation | occurrence | production of the noise by operating a ventilation fan in the state which obstruct | occluded the drainage means can be suppressed.

The washing / drying machine of the present invention can discharge foreign matter, lint, and the like that have adhered to and accumulated in the drainage path and drainage port by draining the water stored in the lower part of the machine body using the water-cooled water supply means for water-cooling and dehumidification. Moreover, generation | occurrence | production of abnormal noise can be suppressed by stopping a ventilation fan in the state which obstruct | occluded the drainage means.

Block diagram of a washing and drying machine in Embodiment 1 of the present invention Block diagram of a washing and drying machine in Embodiment 2 of the present invention Diagram showing the relationship between the drying operation time and lint deposit A diagram showing the relationship between the lint deposit and the amount of wastewater Diagram showing the relationship between the drying operation time and the amount of accumulated lint Sectional drawing which shows a structure of the conventional washing dryer Block diagram of the washer / dryer

The first invention includes a washing tub, a water supply means for supplying water to the washing tub, a circulation path air in the washing tub before and Symbol washing tub bottom communicates with the washing tub upper circulates, the A heater that heats air supplied to the washing tub from the circulation path, a blower fan that generates circulation air in the circulation path , and water-cooled water supply that supplies cooling water to the circulation path Means, a drainage path provided in communication with the lower part of the circulation path, for draining the water in the washing tub and the circulation path, a drainage means provided in the drainage path and openable and closable, the water supply means, A control means for controlling the drainage means, the heater, the blower fan, and the water-cooled water supply means, and performing a washing process, a rinsing process, a dehydration process, and a drying process. Activate water-cooled water supply In a state of being, the water discharge means by closing a predetermined time, the water supplied from said water cooling water supply means said drainage path upstream of the drainage means, said circulation path lower, and the washing tub bottom After the predetermined time has elapsed, the drainage means is opened, and the blower fan is stopped in a state where the drainage means is closed, so that foreign matter, lint, and the like deposited on the drainage path and drainage port can be discharged. Since it is not necessary to provide water supply means for lint drainage, the cost can be reduced. In addition, the size of the washing / drying machine can be reduced. Moreover, generation | occurrence | production of abnormal noise can be suppressed by stopping a ventilation fan in the state which obstruct | occluded the drainage means.

A second invention is, abnormal noise particularly, the control means of the first invention, by stopping the heater and the blowing fan with occlusion of the draining means, the water accumulated in the lower machine body by operating a blower fan Therefore, it is possible to discharge foreign matters, lint, and the like that have adhered to and accumulated in the drainage passages and drainage ports, and it is not necessary to provide water supply means for lint drainage, so that the cost can be reduced.

A third invention is, in particular, the control means of the first or second invention, by the stop the heater with closure of the drainage means, stopping the blower fan after stopping of the heater, the peripheral heater Therefore, it is possible to discharge foreign matter, lint, and the like deposited on the drainage passage and the drainage port without increasing the temperature of the drainage, and it is not necessary to provide a water supply means for lint drainage, so that the cost can be reduced.

A fourth invention is, in particular, the control means of any one invention of the first to 3, wherein said control means, said draining means to close a predetermined time to stop the blowing fan and the heater, the drainage means open with the, by re-operating the blowing fan and the heater, without erroneously determined the completion of the drying process by stopping the heater and the blowing fan, foreign matter or lint or the like attached deposited drainage path and discharge port Since it is not necessary to provide water supply means for lint drainage, the cost can be reduced.

A fifth invention, in any one invention of the first 1-4, comprising a laundry amount detecting means for detecting an amount of laundry in the washing tub, said control means detects the laundry amount detecting means discharge by shortening the inter closed 塞時 of the drainage means when the amount of laundry is small, without wasteful water by water-cooling water supply means, attached deposited drainage path or drain opening foreign matter or lint, etc. Since it is not necessary to provide a water supply means for lint drainage, the cost can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Based on FIG. 1, the block diagram of the washing-drying machine in embodiment of this invention is demonstrated. In addition, the structure of a washing machine is the same as the past, and about the same component, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The control means 11 controls the motor 10, the water supply means 15, the heater 31, the blower fan 30, the water-cooled water supply means 36, the drainage means 13, the clutch 9 and the like based on operations of various operation switches and start switches on an operation panel (not shown). To do. In addition, although the water supply means 15, the water-cooled water supply means 36, and the drainage means 13 are comprised with the solenoid valve in this Embodiment, they are not restricted to a solenoid valve, You may use another structure.

  Hereinafter, the operation and action of the washing and drying machine of the present embodiment will be described with reference to FIG. 6 together with FIG.

  First, after the laundry is put into the inner tub 4 which is a washing tub, when the start switch is operated, the control means 11 controls the water supply means 15 to supply the wash water into the outer tub 3. When a predetermined amount of washing water accumulates in the outer tub 3, the control means 11 operates the motor 10 to selectively rotate the inner tub 4 and the rotary blade 7 to wash the laundry in the washing tub with the washing water. Stir. The control means 11 rotates the inner tub 4 and the rotor blade 7 by the motor 10 for a predetermined time, and then operates the drainage means 13 to drain the washing water in the outer tub 3. In the present embodiment, the outer tub 3 and the inner tub 4 are referred to as a washing tub.

  The above operation is repeated a predetermined number of times to perform the washing process. After the washing process, the water supply means 15 is controlled to supply water into the outer tub 3, and the inner tub 4 or the rotary blade 7 is rotated to perform rinsing. Rinsing is repeated a predetermined number of times to complete the rinsing process. After the rinsing step, a dehydration step of rotating the inner tub 4 to dehydrate the laundry in the inner tub 4 is performed. Furthermore, a drying process is performed after a dehydration process.

  In the drying process, the control means 11 operates the heater 31 and the blower fan 30 while rotating the inner tub 4 or the rotary blade 7 to perform the stirring operation of the laundry. Circulation air is generated in the circulation path by the operation of the heater 31 and the fan 30, the hot air heated by the heater 31 is supplied into the inner tub 4, and the hot and humid air that dries the laundry is dehumidified by the heat exchanger 35. Is done.

  When the laundry is dried to a predetermined state by the circulating air generated by the operation of the heater 31 and the blower fan 30, the cooling water is supplied into the heat exchanger 35 by the water-cooled water supply means 36.

  In the drying process, lint is generated from the laundry, and foreign matters, lint, and the like circulate through the circulation path and adhere to the heat exchanger 35 and the like. The lint or the like adhering to the inner surface of the heat exchanger 35 is flowed by the cooling water supplied from the water-cooled water supply means 36 and is drained through the drainage port through the drainage port. There is a risk that the drainage path and drainage port may become clogged and drainage will not be possible.

  The drainage path here is a path from the drain of the outer tub 3 to the drainage hose 22 via the drainage means 13, and a path from the heat exchanger 35 to the drainage hose 22 via the drainage means 13. Is included. The drain outlet includes a drain outlet from the outer tub 3 and a drain outlet through which the drain from the outer tub 3 and the drain from the heat exchanger 35 merge and drain.

  In the present embodiment, the control unit 11 stores water in the inner bottom portion of the outer tub 3 and the drainage path by closing the drainage unit 13 for a predetermined time while the water-cooled water supply unit 36 is operated. The water level stored in the inner bottom portion of the outer tub 3 can be adjusted to a water level at which the stored water does not touch the laundry.

  When a predetermined amount of water accumulates in the inner bottom of the outer tub 3 and the drainage path, the control means 11 opens the drainage means 13 and drains the internal water. Since the water accumulated in a predetermined amount is drained at once, foreign matter, lint, and the like deposited on the drainage path and drainage port can be discharged.

  The control means 11 stops the operation of the heater 31 and the blower fan 30 while the drainage means 13 is closed, and stops the circulation of hot air in the circulation path.

  In a state where the drainage means 13 is closed and the hot air is circulated before the circulation path is blocked by the accumulated water, when the blower 30 is operated to circulate the hot air, the portion where the water has accumulated In this case, abnormal noise may occur due to the passage of the circulating wind, which may be irritating to the user and may be misunderstood as a product failure. Further, when the water level accumulated by the blockage of the drainage means 13 rises and the circulation path is blocked, the hot air cannot be circulated, and the temperature of the peripheral portion where the heater 31 is disposed may increase. is there.

  In the present embodiment, these problems can be solved by stopping the operation of the heater 31 and the blower fan 30 in a state where the drainage means 13 is closed.

  When the heater 31 and the blower fan 30 are stopped simultaneously, when the heater 31 having a large heat capacity is used, there is a risk that the temperature of the peripheral portion of the heater 31 will rise.

  The control means 11 closes the drainage means 13, stops the heater 31, and stops the operation of the blower fan 30 after continuing the operation of the blower fan 30 for a certain time. The certain time is a time until the temperature of the heater 31 is lowered to a predetermined temperature at which no danger occurs. The blower fan 30 may be stopped when the temperature of the heater 31 is lowered to a predetermined temperature that does not cause danger, not for a fixed time.

  The control means 11 operates the heater 31 and the blower fan 30 after opening the drainage means 13. While the circulation of the hot air to the circulation path is stopped, the temperature in the washing tub is lowered, and immediately after the energization of the heater 31 and the fan 30 is resumed, the laundry in the inner tub 4 is removed. There is a possibility that the drying state cannot be accurately detected, and the drying process is terminated even though the laundry is dried.

  In the present embodiment, the control means 11 opens the drainage means 13, energizes the heater 31 and the blower fan 30 to restart the drying process, and detects the dry state of the laundry after continuing the drying process for a certain time. . Thereby, the dry state of the laundry after re-energization of the heater 31 and the fan 30 can be detected accurately, and the end of the drying process is not erroneously determined.

(Embodiment 2)
FIG. 2 is a block diagram of a washing machine according to the second embodiment of the present invention.

  As shown in FIG. 2, in the present embodiment, a laundry amount detection means 38 that detects the amount of laundry in the inner tub 4 is provided.

In the washing machine of the present embodiment, after the laundry is put into the inner tub 4 and the washing / drying operation is started, the amount of laundry in the inner tub 4 is detected by the washing amount detecting means 38. The control means 11 determines the amount of water, the washing time, the number of times of rinsing, the dehydration time, the drying time, etc. according to the amount of laundry detected by the washing amount detection means 38. The control means 11 performs the washing process, the rinsing process, the dehydration process, and the drying process based on the amount of water, the washing time, the number of times of rinsing, the dehydration time, the drying time, etc. determined according to the amount of laundry.

  FIG. 3 is a diagram showing the relationship between the drying operation time and the lint accumulation amount, where the solid line indicates the case where the amount of laundry is large, and the broken line indicates the case where the amount of laundry is small.

  As shown in FIG. 3, with the progress of the drying operation, the amount of foreign matter, lint, and the like deposited and deposited on the drainage path and drainage port increases. When the drying operation time T1 elapses, the amount of foreign matter and lint accumulated when the amount of laundry is small (lint accumulation amount B), and the amount of foreign matter and lint accumulated when the amount of laundry is large increases. (Lint deposition amount A).

  FIG. 4 is a diagram showing the relationship between the lint accumulation amount and the drainage amount.

  As shown in FIG. 4, when the amount of foreign matter, lint, etc. deposited on the drainage channel or drain outlet is small (lint accumulation amount C), the amount of wastewater required to discharge the accumulated foreign matter, lint, etc. is small (drainage amount) L1) When there is a large amount of deposits of foreign matter, lint, etc. in the drainage channel or drain outlet (Lint deposition amount D), the amount of drainage required to discharge the accumulated foreign matter, lint, etc. increases (drainage amount L2). .

  The control means 11 changes the time for closing the drainage means 13 in accordance with the amount of laundry detected by the laundry quantity detection means 38, so that the drainage path and drainage can be performed without wasteful water supply from the water-cooled water supply means 36. Foreign matter, lint, etc. deposited on the mouth can be discharged.

  Further, when the amount of laundry detected by the washing amount detection means 38 is small, the closing time of the drainage means 13 is shortened and the energization restart of the heater 31 and the fan 30 is accelerated, so that A decrease in temperature can be reduced, and a decrease in the drying efficiency of the laundry can be suppressed.

  FIG. 5 is a diagram showing the relationship between the drying operation time and the lint accumulation amount.

  It takes a long time for the drying operation (T4) when the amount of laundry is small so that the amount of foreign matter, lint, etc. deposited on the drainage channel and drain outlet becomes a certain amount of accumulation (lint accumulation amount E). When it is large, the drying operation time is shortened (T3).

  The control means 11 changes the interval at which the drainage means 13 is closed according to the amount of laundry detected by the laundry quantity detection means 38, so that the drainage path and drainage port can be provided without wasteful water supply from the water-cooled water supply means 36. It is possible to discharge foreign matter, lint, and the like adhering to and depositing on the surface.

  In addition, although this Embodiment demonstrated using the vertical washing machine, it can also be used for a drum-type washing machine and is not limited to a vertical washing machine.

  As described above, the washing / drying machine according to the present invention uses the water-cooled water supply means for water-cooled dehumidification to collect water in the lower part of the machine body and drain the accumulated water, thereby depositing and depositing foreign matter on the drainage passage and the drain port. And lint can be discharged. It can also be applied to uses such as drum-type washing machines.

DESCRIPTION OF SYMBOLS 1 Housing | casing 3 Outer tank 4 Inner tank 10 Motor 11 Control means 13 Drainage means 15 Water supply means 30 Blower fan 31 Heater 33 Hot air outlet 35 Heat exchanger 36 Water-cooled water supply means 37 Water supply port 38 Washing amount detection means

Claims (5)

And washing tub, a water supply means for supplying water to the washing tub, a circulation path air in the washing tub before and Symbol washing tub bottom communicates with the washing tub upper circulates, disposed in the circulation path A heater for heating air supplied from the circulation path to the washing tub, a blower fan for generating circulation air in the circulation path , water-cooled water supply means for supplying cooling water into the circulation path , and the circulation path A drainage path provided in communication with the lower part and draining water in the bottom of the washing tub and the circulation path, a drainage means provided in the drainage path and openable and closable, the water supply means, the drainage means, and the heater , the blowing fan, the control water cooling water supply means, the washing process, rinsing process, dewatering process, and a control unit to perform the drying step,
In the drying step, the control means closes the drainage means for a predetermined time in a state where the water-cooled water supply means is operated, so that the water supplied from the water-cooled water supply means is more upstream than the drainage means. Washing, which is stored in the drainage path, the lower part of the circulation path, and the bottom of the washing tub, opens the drainage means after the predetermined time has elapsed, and stops the blower fan with the drainage means closed. Dryer. Wherein, washing and drying machine according to claim 1 together with blockage of the drainage means is characterized by stopping the heater and the blowing fan. It said control means, said stop the heater with closure of the drainage means, washing and drying machine according to claim 1 or claim 2 characterized in that stopping the blower fan after stopping of the heater. Said control means, said drainage means to close a predetermined time to stop the blowing fan and the heater, with the opening of the water discharge means, according to claim 1 which is characterized in that to re-operate the blower fan and the heater washing and drying machine according to any one of the three. Comprising a laundry amount detecting means for detecting an amount of laundry in the washing tub, said control means, between a closed 塞時 of the drainage means when the amount of the detected laundry of the washing amount detecting means The washing / drying machine according to any one of claims 1 to 4 , wherein the washing / drying machine is shortened .

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