JP2016137094A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing and drying machine which has a drying function in which drying finish is good by suppressing occurrence of wrinkles and in which power consumption is reduced by improving drying efficiency.SOLUTION: A washing and drying machine includes: a washing tub; a rotary vane provided at a bottom part of the washing tub; an outer tub including the washing tub and storing washing water; a drive mechanism for rotationally driving the washing tub and the rotary vane; and a drying mechanism for blowing air into the washing tub. A blowout port for blowing out warm air is provided from the drying mechanism to the upper part of the washing tub. A tip of the blowout port protrudes from a fixing surface of the blowout port, and an air passage is formed around the blowout port. In the washing tub, a cover or an annular protrusion is provided, which has substantially the same height as a blowout port tip or which further protrudes more onto the inner side of the washing tub from the blowout port tip.SELECTED DRAWING: Figure 2

Description

  In the present invention, the rotating wings are rotated to wash and rinse the clothes, and the washing tub (inner tub) is rotated to dehydrate the clothes, and then the warm tub or dry air is blown into the washing tub. The present invention relates to a washing dryer having a function of drying.

  In general, a washing / drying machine is provided with a rotating blade at the bottom of a washing tub for storing clothes, and with the water stored in the washing tub and an outer tub that supports the rotating wing, the rotating blade is rotated forward and backward to wash. I do. Then, in the drying process after the laundry tub is rotated at a high speed and the dehydration is completed, warm air heated by the heater is blown onto the clothes by the blower fan. The moisture contained in the clothes is evaporated by the warm air, the moisture-containing air is guided to the circulation path, and the moisture is removed by the dehumidifying mechanism provided in the circulation path.

  For example, in order to dry clothes effectively, Patent Document 1 stirs the pulsator while blowing high-pressure hot air from the blowing nozzle protruding from the center of the top surface of the dehydration tank to the center of the pulsator. . Moreover, in patent document 2, warm air is sprayed from the warm air discharge port which protruded from the outer peripheral side of the top | upper surface of the washing and dehydration tank upper part.

Japanese Unexamined Patent Publication No. 09-774 JP 2010-69072 A

  In a washing and drying machine such as these, if the amount of clothing is large, the clothing swells as the drying progresses and comes into contact with the tip of the outlet that protrudes from the top of the washing tub, damaging the clothing or stirring the clothing. The movement is hindered and wrinkles increase and drying efficiency decreases.

  An object of the present invention is to provide a washing / drying machine having a drying function that reduces wrinkles without damaging clothes and has a drying function that improves drying efficiency and reduces power consumption.

  In order to achieve the above object, the present invention provides a washing tub, a rotating wing provided at the bottom of the washing tub, an outer tub containing the washing tub and storing washing water, the washing tub and the rotating wing. In a washing and drying machine provided with a drive mechanism that rotates and a drying mechanism that blows air into the washing tub, a blowing port that blows out the warm air from the drying mechanism is provided on the upper portion of the washing tub, and the blowing port is fixed The tip of the outlet is protruded from the surface, an air passage is formed around the outlet, and the laundry tub protrudes into the washing tub from the same height as the tip of the outlet or from the tip of the outlet. A cover or an annular protrusion is provided.

  According to the present invention, the clothing slips on the surface of the cover by the cover that protrudes into the washing tub from the tip of the blowout port, or the contact between the tip of the blowout port and the clothing is reduced. As a result, the agitation and movement of the clothing is promoted, so that the damage to the clothing is reduced, the wrinkles of the clothing are reduced, the drying finish is good, the drying efficiency is improved, and the power consumption is reduced. I can do it.

It is an external appearance perspective view which shows the washing-drying machine of the 1st Example of this invention. It is a longitudinal cross-sectional view which shows the cross section of the washing / drying machine shown in FIG. It is an external appearance perspective view which concerns on the 1st Example of this invention and shows the structure of a rotary blade. It is a block diagram which concerns on 1st Example of this invention and shows the structure of a control apparatus. It is a flowchart which shows a part of control processing which the microcomputer which concerns on 1st Example of this invention and is used for the control apparatus performs. It is a flowchart which shows a part of control processing which the microcomputer which concerns on 1st Example of this invention and is used for the control apparatus performs. It is a longitudinal cross-sectional view which shows the structure which blows off warm air from the upper part of a washing tub concerning the 1st Example of this invention. It is a flowchart which shows the detail of the drying process of the control processing which concerns on 1st Example of this invention and is performed by the microcomputer used for the control apparatus. It is a longitudinal cross-sectional view which shows the structure which blows off warm air from the tank cover rear surface of a washing tub concerning the 2nd Example of this invention. It is a longitudinal cross-sectional view which shows the structure which blows off warm air from the tank cover rear surface of a washing tub concerning the 3rd Example of this invention. It is a longitudinal cross-sectional view which shows the structure which blows off warm air from the tank cover rear surface of a washing tub in the 4th Example of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications and applications are possible within the technical concept of the present invention. Examples are also included in the scope.

  FIG. 1 is an external perspective view of the washing / drying machine 100, and FIG. 2 is a longitudinal sectional view of the washing / drying machine 100. FIG. 3 is an external perspective view showing the configuration of the rotor blade. The washing / drying machine 100 includes a casing 1 constituting an outer shell, a power switch 5 and a detergent / finishing agent container 28 on the front side of the top cover 2 at the top of the casing 1, and a water supply electromagnetic valve 4 and a heater 20 on the rear. In addition, components related to water supply and drying such as the blower fan 19 are incorporated. Further, the housing 1 is provided with an outer lid 3 so as to cover the clothes insertion port 2a. On the front side of the outer lid 3, there is provided a handle 3a and an operation panel 8 having an operation switch 6 and a display 7. When the handle 3a is pulled upward, as shown by a two-dot chain line in FIG. It is designed to be folded and opened. The operation panel 8 is electrically connected to a control device 14 provided at the bottom of the housing 1.

  The washing tub 9 for storing the clothing 56 has a large number of small through holes 9a for water flow and ventilation on the outer peripheral wall, and a plurality of through holes 9b for water flow and ventilation on the bottom wall thereof, A fluid balancer 9c is provided at the upper edge, and a rotary blade 11 for stirring the clothes 56 is rotatably installed inside the bottom. The rotating blade 11 is formed with a gentle inclined surface 11h and a raised portion 11a that repeatedly apply an upward component force to the clothes 56 put on the rotating blade 11 by rotating. And many small through-holes 11c for ventilation are provided. The washing tub 9 and the rotating blade 11 are driven to rotate independently or integrally by a drive mechanism including an electromagnetic operation clutch mechanism 12 and a washing / dehydrating drive motor 13.

  The outer tub 10 containing the washing tub 9 is provided with shock absorbers (not shown) on four support rods that are suspended by hanging from corner plates (not shown) provided at the four corners of the upper end of the outer frame 1. ), The four directions of the outer tub 10 are engaged with each other and supported uniformly to be suspended from the central portion of the outer frame 1. A drive mechanism is attached to the lower part of the outer tub 10. The drive mechanism has a built-in washing / dehydrating drive motor 13, an electromagnetically operated clutch mechanism 12, and a planetary gear speed reduction mechanism using an inverter-driven motor or a reversible rotation type capacitor phase-separated single-phase induction motor. By controlling the clutch mechanism 12, the washing tub 9 is released so that the washing tub 9 can be stationary or freely rotated. And a drive function for executing a dehydration drive mode for rotating in the same direction. A vibration sensor 27 for detecting the vibration of the outer tub 10 during washing or dehydration is provided outside the side surface of the outer tub 10. An air trap 21 a is provided on the bottom surface of the outer tub 10, and the pressure inside the air trap 21 a is transmitted to the water level sensor 21 via the tube 21 b, and the water level accumulated in the outer tub 10 is detected.

A clothing input port 31a is provided in a portion about 2/3 from the front side of the tank cover 31 provided on the upper surface of the outer tub 10, and a water supply inlet (not shown) and a circulating water inlet 33 are provided on the rear surface 31b. . Further, a detergent / softening agent inlet 28 a is provided in front of the tank cover 31. An inner lid 23 is provided so as to cover the clothing input port 31a. The inner lid 23 includes a warm air outlet 54 and is connected to the heater 20 via a bellows tube 29b. The inner lid 23 is attached so as to be freely opened and closed by a hinge 23b. When the handle 23a is lifted upward, the inner lid 23 is unlocked (not shown) and opened as indicated by a one-dot chain line in the figure. It is locked by pushing down. When opening the inner lid 23, the bellows tube 29 b is bent to absorb the deformation of the air path between the hot air outlet 54 and the heater 20. Around the hot air outlet 54, air inside the washing tub 9 is attracted from the outer periphery of the hot air outlet 54, and an air passage that flows along the tip of the hot air outlet 54 is built in the washing tub 9. An air outlet cover 54 a having a smooth outer shape and a height substantially the same as the tip of the hot air outlet 54 is attached.
The drying mechanism for drying the clothes 56 includes the blower fan 19, the heater 20, the drying duct 22, and the dehumidifying mechanism 22b. The drying duct 22 connects between the water flow vent 10 b and the hot air outlet 54. In the middle of the drying duct 22, a dehumidifying mechanism 22 b, a lint filter (not shown), a blower fan 19, a heater 20, and a temperature sensor 26 are provided. When the blower fan 19 is operated and the heater 20 is energized, warm air blows into the washing tub 9 from the warm air outlet 54 through the bellows tube 29b, warms the clothes 56 and evaporates moisture. The air that has become hot and humid passes through the through holes 9a and 9b, exits the outer tub 10, is sucked into the drying duct 22 through the water vent 10b, and is cooled and dehumidified with cooling water flowing down the dehumidifying mechanism 22b and dried. It becomes low temperature air, is heated again by the heater 20, and circulates so as to blow into the washing tub 9.

  The rubber bellows tubes 29a, 29b, 29c, 29d, and 29f are provided with a drying duct 22 and a water supply solenoid valve 4 provided on the outer tank 10 and the tank cover 31 that are displaced by vibration and on the fixed side (such as the outer frame 1 and the top cover 2). It is used for connection with the circulation pump 16 and the like.

In this embodiment, the water supply electromagnetic valve 4 uses a four-way valve so that water can be supplied in four directions. The first is a washing water supply solenoid valve, which is connected to the water supply inlet and supplies water into the washing tub 9. The second is a detergent water supply solenoid valve, which is connected to the detergent charging chamber of the detergent / finishing agent container 28. The third is a finishing water supply solenoid valve, which is connected to the finishing agent charging chamber of the detergent / finishing agent container 28. The detergent / finishing agent container 28 is connected to the detergent / finishing agent inlet 28 a, and the detergent and the finishing agent are supplied into the outer tub 10. The fourth is connected to a dehumidifying mechanism 22b described later.
The washing water circulation pipe 17 connects between the water flow vent 10 b provided at the bottom of the outer tub and the circulation water inlet 33. In the middle of the circulation pipe 17, there are a circulation pump 16 and a foreign matter trap 18 provided at the bottom of the machine body. A drainage hose 24 is connected to the foreign matter trap 18 via a drainage valve 15. When the circulation pump 16 is operated, the washing water in the outer tub 10 is conveyed from the water vent 10b provided at the bottom of the outer tub to the upper portion of the outer tub 10 through the circulation pipe 17, and circulates on the rear surface 31b of the tub cover 31. The water enters the circulating water cover 30 installed on the side of the washing tub 9 on the rear surface 31 b from the water inlet 33, and is sprayed into the washing tub 9 from the nozzle 34.

  FIG. 4 is a block diagram of a control unit of the washing / drying machine. The microcomputer 40 is connected to an operation button input circuit 41, a water level sensor 21, a temperature sensor 26, and a vibration sensor 27 connected to the switches 6 and 6a, and various information in the user's button operation, washing process, and drying process. Receive a signal. The output from the microcomputer 40 is connected to the drive circuit 42, and connected to the water supply electromagnetic valve 4, the clutch 12, the drain valve 15, the circulation pump 16, the electric motor 13, the blower fan 19, the heater 20, and the like. Control energization. Further, it is connected to a 7-segment light emitting diode display 25, a light emitting diode 7 and a buzzer 43 for notifying the user of the operating state of the washing machine.

  The microcomputer 40 is activated when the power switch 5 is pressed and the power is turned on, and executes a basic control processing program for washing and drying as shown in FIGS. The following control flow will be described.

<< Step S101 >>
Check the condition of the washer / dryer and make initial settings.

<< Step S102 >>
The indicator 7 of the operation panel 8 is turned on and a washing course is set according to an instruction input from the operation button switch 6. When no instruction is input, the standard washing course or the previous washing course is automatically set.

<< Step S103 >>
The instruction is input from the start switch 6a in the operation button switch 6 of the operation panel 8 and the process is branched.

<< Step S104 >>
The detergent amount detection process is executed. This detergent amount detection is based on the amount of rotational load acting on the rotating blade 11 when the rotating blade 11 is rotated in one direction with the washing tub 9 being stationary in the dry cloth state before supplying the washing water. The laundry dehydration drive motor 13 and the electromagnetic operation clutch mechanism 12 in the drive mechanism are controlled so as to detect the cloth amount of the clothes 56, and an appropriate amount of detergent (detergent amount) is obtained based on the detected cloth amount.

  The detergent amount is determined by referring to a preset table of cloth amount and detergent amount. Specifically, the detection of the amount of cloth is performed by detecting the ultimate rotational speed when power is supplied for a predetermined time so as to rotate the laundry dewatering drive motor 13 in the configuration using the inverter drive motor as the laundry dewatering drive motor 13. Do. In the configuration using a capacitor phase-separated single-phase induction motor as the washing / dehydrating drive motor 13, detecting inertial rotation deceleration characteristics after the power is cut off in a state where the washing / dehydrating drive motor 13 is supplied with power so as to increase to the saturation rotation speed. To do. And a preferable detergent amount is calculated | required by referring the contrast table of the cloth amount and detergent amount which were preset.

  The amount of washing water is set so that the water level does not exceed the rotary blade 11 and accumulates at the bottom of the outer tub 10 when the amount of cloth is within a predetermined range (appropriate amount) of cloth. Further, the washing time is obtained and set based on the detection result (cloth amount). When the amount of cloth is not detected, a standard washing time is set.

<< Step S105 >>
The determined amount of detergent is displayed on the display 25 of the operation panel 8.

<< Step S106 >>
The detergent water supply solenoid valve is opened, and the detergent water supply is performed in the detergent charging chamber of the detergent / softening agent container 28. The user operates to close the outer lid 3 after putting the indicated amount of the powder detergent into the detergent / softening agent container 28 detergent loading chamber. The powder detergent put into the detergent charging chamber in which the detergent feed water flows flows together with the detergent feed water through the detergent / softening agent inlet 28a and falls to the bottom of the outer tub 10.

<< Step S107 >>
Stop water supply when the detergent is dissolved and water is supplied. The detergent-dissolved water level is the amount of water sufficient to agitate the water supplied at the bottom of the washing tub 9 and the detergent when the washing tub 9 is rotated in the subsequent detergent-dissolving step (step S108). Is set to be lower than the height of the lower surface of the rotor blade 11 (the clothes 56 do not get wet before the detergent melts).

<< Step S108 >>
By washing the washing tub 9 and the rotating blade 11 slowly and integrally in one direction, the detergent-dissolved water and the powder detergent put into the bottom of the outer tub 10 are stirred at the bottom of the washing tub 9 to obtain a high detergent Perform detergent melt to produce a concentration of wash water.

<< Step S109 >>
Perform pre-washing. This pre-washing is performed by intermittently stirring the rotating blades 11 in the forward and reverse directions while the washing tub 9 is stationary, and operating the circulation pump 16 during the forward and reverse rotations of the rotating blades 11. The washing water at the bottom is poured onto the clothing 56 from the nozzle 34. At this time, since high-concentration washing water is sprayed on the clothing 56, it penetrates the clothing 56 evenly by the penetration action of the detergent. The high-concentration washing water that has permeated into the clothing 56 has a high oil-dissolving ability, dissolves oil-and-soil stains such as sebum stains, and has a great effect of raising the stains from the clothing 56, thereby obtaining a high detergency. Next, while the rotary blades 11 and the circulation pump 16 are stopped, the detergent water supply solenoid valve and the washing water supply solenoid valve are opened while referring to the detection signal of the water level sensor 21 to supply water so that the water level does not exceed the set water level. . By repeating this operation a plurality of times, the garment 56 is adapted to the washing water and dispersed on the rotary blades 11.

<< Step S110 >>
Perform the main wash. In the main washing, first, the cloth amount is detected by the same method as described above, and the set washing time is corrected and set. Thereafter, while the washing tub 9 is stationary, the circulation pump 16 is operated while rotating the rotating blade 11 forward and backward, and the washing water accumulated in the bottom of the outer tub 10 is dropped from the nozzle 34 onto the clothing 56 to circulate the washing water. And the cloth loosening and agitation for rotating the rotor blade 11 forward and backward in a state where the circulation pump 16 is stopped and the circulation of the washing water is stopped. By the forward / reverse rotation of the rotary blade 11, the clothes 56 are interchanged in the circumferential direction and the radial direction in the washing tub 9 and are uniformly washed. Finally, in the state where the operation of the circulation pump 16 is stopped and the circulation of the washing water is stopped, the homogenization stirring for rotating the rotor blade 11 forward and backward is executed to complete the main washing time.

<< Step S111 >>
The first rinsing rinse is performed. In this rinsing, first, the drain valve 15 is opened to drain the washing water accumulated at the bottom of the outer tub 10, and then the washing tub 9 and the rotary blade 11 are integrally rotated in one direction to form the clothing 56. Centrifugal dehydration of the contained wash water. The rotational speeds of the washing tub 9 and the rotary blades 11 at the time of the dehydration of the washing water are set in the same manner as the rotational speed (about 1000 r / min) in the final dehydration described later, and the dehydration operation is performed to achieve a high dehydration rate.

  Thereafter, the drainage electromagnetic valve 15 is closed and the washing tub 9 and the rotating blade 11 are slowly rotated integrally in one direction, while the washing water electromagnetic valve is opened and tap water is fed from the sprinkler to the clothing 56 on the rotating blade 11. Supply water so that it falls on the water.

  Next, in a state where the rotation of the washing tub 9 and the rotary blade 11 is stopped, rinsing water is supplied so that the water level at the bottom of the outer tub 10 does not exceed the set water level.

  Next, in the same manner as the push-washing stirring in the main washing, the circulating pump 16 is operated while rotating the rotating blades 11 with the washing tub 9 being stationary, and the rinse water collected at the bottom of the outer tub 10 is removed. Rinsing water circulation agitation rinsing that circulates from the nozzle 34 to the clothes 56 on the rotary blade 11 is executed.

  Next, in a state where the rotation of the rotary blade 11 and the operation of the circulation pump 16 are stopped, water is supplied so that the water level does not exceed the set water level while detecting the water level of the rinse water accumulated at the bottom of the outer tub 10.

  Next, while the washing tub 9 is in a stationary state, the circulating pump 16 is operated while rotating the rotating blade 11 forward and backward, and the rinse water accumulated in the bottom of the outer tub 10 is discharged from the nozzle 34 to the clothing 56 on the rotating blade 11. Rinsing water circulation agitation rinsing is performed to circulate so as to fall on. As in the case of washing, since the clothes 56 in the washing tub 9 are switched in the circumferential direction and the radial direction, the rinsing water is uniformly applied to the clothes 56, and the detergent is diluted.

  After that, with the circulation pump 16 stopped and the circulation of the rinse water stopped, uniform stirring for continuing forward and reverse rotation of the rotary blade 11 is performed.

<< Step S112 >>
Perform a second rinsing rinse. In this second rinsing, the soft finish agent water supply solenoid valve is opened and water is supplied to the soft finish agent input chamber in the detergent / softener input container 28, whereby the soft finish agent in the soft finish agent input chamber is removed from the outer tub. Add control to the bottom of the ten. The other operations are performed in the same manner as the first rinsing.

<< Step S113 >>
Perform final dehydration. Final dehydration is performed by operating the drive mechanism so that the washing tub 9 and the rotary blade 11 are integrally rotated at a high speed of about 1000 r / min in a state where the drain electromagnetic valve 15 is left open. The clothes 56 in the washing tub 9 are subjected to centrifugal dehydration. The operation time for the final dehydration is set to a time for obtaining a desired dehydration rate.

<< Step S114 >>
Check whether the washing / drying course is set and branch the process.

<< Step S115 >>
When the washing / drying course is set, the drying is executed. The air heated by the heater 20 and heated by the heater 20 is blown into the washing tub 9 from the hot air outlet 54, warms the clothes 56, evaporates the water, and becomes high temperature and high humidity. Drying is performed by being sucked into the duct 22 and cooled and dehumidified with cooling water flowing down the dehumidifying mechanism 22 b to become dry low-temperature air, heated again by the heater 20, and circulated so as to blow into the washing tub 9. The air defrosted and dehumidified in the drying duct 22 collects lint through a lint filter (not shown). During the drying, the drain electromagnetic valve 15 is opened, and the cooling water flowing down the dehumidifying mechanism 22 b and the dehumidified water are discharged to the outside through the drain hose 24. Drying is performed while monitoring the temperature of the hot air by the temperature sensor 26, and is completed when the rate of temperature change reaches a predetermined value.

  Next, the characteristic operation of the present invention in the washing and drying machine having such a configuration will be described. FIG. 7 is a longitudinal sectional view showing a configuration for blowing the hot air 51 from the upper part of the washing tub 9, and FIG. 8 is a flowchart showing a control flow showing an example of a control process executed by the microcomputer in the embodiment shown in FIG. It is.

  Hereinafter, a detailed control flow of the drying process will be described. Note that steps S101 to S114 in FIG. 8 are the same as the control flow shown in FIGS.

  In FIG. 8, when the washing / drying course is not selected in step S114, this control flow is finished when the washing is completed. On the other hand, when the washing / drying course is selected, the following steps are executed.

<< Step S200 >>
In the drying process, the washing tub 9 is rotated at a high speed in order to further dehydrate the clothes 56. It should be noted that this step can be omitted when sufficient dehydration has been performed in the previous washing step.

<< Step S201 >>
This is a process for performing step S200 for a predetermined time, and the dehydration process is executed until a predetermined time has elapsed. This step can also be omitted if sufficient dehydration is performed in the previous washing process.

<< Step S202 >>
Hot air 51 blown from the blower fan 19 and heated by the heater 20 is blown from the hot air outlet 54 toward the clothing 56.

When high-speed air is blown out from the hot air outlet 54, the air in the washing tub 9 is attracted by the outlet cover 54a installed around the hot air outlet 54 to become an accompanying flow 52 and the hot air outlet 54. Therefore, the air volume of the warm air 51 blown to the clothing 56 is amplified. As a result, evaporation of moisture from the garment 56 is promoted and drying efficiency is improved, and the garment 56 is spread and wrinkles generated during drying are reduced. When the amount of clothing 56 is large, even if the clothing 56 swells with the progress of drying and comes into contact with the hot air outlet 54 at the top of the washing tub 9, the outlet cover 54a having a smooth outer shape facing the inside of the washing tub 9 is used. As a result, the clothing 56 slides on the surface of the outlet cover 54a, and the tip of the outlet cover 54a and the warm air outlet 54 are almost the same height, so that the contact between the tip of the hot air outlet 54 and the clothing 56 is reduced. The stirring and movement of the clothes 56 are promoted. Thereby, while the damage of the clothing 56 reduces, a wrinkle reduces and drying efficiency improves.
<< Step S203 >>
By rotating the washing tub 9 and the rotating blade 11 slowly and integrally, or by rotating the rotating blade 11 forward and backward while the washing tub 9 is stationary, the clothes 56 are heated and dried while stirring. . When the rotor blade 11 is rotated, the garment 56 is lifted by the gentle inclined surface 11 h of the rotor blade 11. When the high-speed warm air 51 is blown to the lifted clothes 56, the clothes 56 are spread and wrinkles generated during drying are reduced.

<< Step S204 >>
It is executed while monitoring the temperature of the hot air by the temperature sensor 26, and it is determined that the drying is finished when the temperature change rate reaches a predetermined value. If the clothes 56 are not dry, the washing tub 9 or the rotary blade 11 in step S203 is rotated and the determination in step S204 is performed again.

<< Step S205 >>
After the heater 20 is turned off, the fan 19 is further turned off, the rotation of the washing tub 9 and the rotary blade 11 is stopped, and the drying process is completed.
As described above, the air in the washing tub 9 is attracted by the air outlet cover 54 a installed around the hot air outlet 54, flows into the accompanying flow 52, flows out from the outer periphery of the tip of the hot air outlet 54, and blows to the clothing 56. Since the air volume of the warm air 51 to be applied is amplified, the evaporation of moisture from the clothing 56 is promoted to improve the drying efficiency, and the clothing 56 is spread and wrinkles generated during drying are reduced. Further, even when the clothes 56 come into contact with the hot air outlet 54 at the top of the washing tub 9, the outlet cover 54 a having a smooth outer shape facing the inside of the washing tub 9 is installed around the hot air outlet 54. The clothing 56 slides on the surface of the outlet cover 54a, the contact between the tip of the hot air outlet 54 and the clothing is reduced, damage to the clothing 56 is reduced, and stirring and movement of the clothing 56 are promoted. Wrinkles are reduced and drying efficiency is improved. By improving the drying efficiency, the power consumption during drying can be reduced. In the present embodiment, the heater 20 is used as the heat source. However, even if the heat source is a heat pump, the same effect can be obtained.

Next, a second embodiment will be described with reference to FIG. FIG. 9 is a longitudinal sectional view showing a configuration in which warm air is blown from the rear surface of the tub cover of the washing tub. A duplicate description of the configuration common to the first embodiment is omitted.

  The difference from the first embodiment is that a hot air outlet 54 is provided on the rear surface 31 b of the tank cover 31 and the hot air 51 is blown directly from the upper part on the outer peripheral side from the center of the washing tub 9. When the amount of the clothing 56 is small, the clothing 56 moves to the outer peripheral side of the washing tub 9 when the rotary blade 11 is rotated. Therefore, the warm air outlet 54 is provided on the outer peripheral side of the washing tub 9, and the hot air 51 is provided directly below. By spraying, the distance between the outlet 54 and the clothing 56 is shortened. As a result, the wind speed of the warm air 51 blown to the clothing 56 is increased, so that evaporation of moisture from the clothing 56 is promoted and drying efficiency is improved, and the clothing 56 is further spread and generated during drying. My reduction. Moreover, since the outlet 54 is installed in the tank cover 31 fixed from the movable inner lid 23, the structure from the heater 20 to the hot air outlet 54 is simplified, and the cost can be reduced.

  Next, a third embodiment will be described with reference to FIG. FIG. 10 is a longitudinal sectional view showing a configuration in which warm air is blown out from the rear surface of the tub cover of the washing tub. A duplicate description of the configuration common to the second embodiment is omitted.

  The difference from the second embodiment is that when high-speed air is blown out from the hot air outlet 54 around the tip of the hot air outlet 54, air in the washing tub 9 is attracted and becomes an accompanying flow 52. This is that a recess that flows out from the outer periphery of the front end of the hot air outlet 54 is provided, and an outlet cover 54 b having a smooth outer shape facing the inside of the washing tub 9 and almost the same height as the front end of the hot air outlet 54 is installed. As a result, the same effect as in the second embodiment can be obtained, and the air path of the accompanying flow 52 is provided at the lower center of the outlet cover 54b, so that the height of the outlet cover 54b can be reduced. Since the contact with the clothing 56 is reduced and the stirring and movement of the clothing 56 are promoted, damage to the clothing 56 is reduced, wrinkles are reduced, and drying efficiency is improved.

  Next, a fourth embodiment will be described with reference to FIG. FIG. 11 is a longitudinal sectional view showing a configuration in which warm air is blown out from the rear surface of the tub cover of the washing tub. The description which overlaps about the structure which is common in 2nd Embodiment is abbreviate | omitted.

  The difference from the second embodiment is that air in the washing tub 9 is attracted when high-speed air is blown from the hot air outlet 54 instead of the outlet cover 54a installed around the hot air outlet 54. In other words, the air passage 55 that flows as an accompanying flow 52 from the outer periphery of the tip of the hot air outlet 54 is installed in the tank cover 31. As a result, the same effect as in the second embodiment can be obtained, and the air path of the accompanying flow 52 is provided at the upper part of the tank cover 31, so that the height of the hot air outlet 54 is as low as the circulating water cover 30. Since the contact with the garment 56 is further reduced and the agitation and movement of the garment 56 are promoted, damage to the garment 56 is reduced, wrinkles are reduced, and drying efficiency is improved.

  DESCRIPTION OF SYMBOLS 1 ... Outer frame, 2 ... Top cover, 2a ... Clothes opening, 3 ... Outer lid, 3a ... Handle, 4 ... Water supply solenoid valve, 5 ... Power switch, 6 ... Each switch, 7, 25 ... Indicator, 8 ... Operation panel, 9 ... Washing tub, 9a, 9b ... Through hole, 9c ... Fluid balancer, 10 ... Outer tub, 10b ... Water vent, 11 ... Rotor blade, 11a ... Raised portion, 11c ... Through hole, 11h ... Inclined Surface: 12 ... Electromagnetic operation clutch mechanism, 13: Washing and dewatering drive motor, 14 ... Control device, 15 ... Drain valve, 16 ... Circulation pump, 17 ... Circulation pipe, 18 ... Foreign matter trap, 19 ... Blower fan, 20 ... Heater, DESCRIPTION OF SYMBOLS 21 ... Water level sensor, 21a ... Air trap, 21b ... Tube, 22 ... Drying duct, 23 ... Inner lid, 23a ... Handle, 24 ... Drain hose, 26 ... Temperature sensor, 27 ... Vibration sensor, 28 ... Detergent / finishing agent container , 28a ... Washing Softener finishing agent inlet, 29a, 29b, 29c, 29d, 29f ... bellows tube, 30 ... circulating water cover, 31 ... tank cover, 31a ... clothes inlet, 31b ... rear surface, 33 ... circulating water inlet, 34 ... nozzle, DESCRIPTION OF SYMBOLS 40 ... Microcomputer, 41 ... Operation button input circuit, 42 ... Drive circuit, 43 ... Buzzer, 51 ... Warm air, 52 ... Adjoining flow, 54 ... Warm air outlet, 54a, 54b ... Air outlet cover, 55 ... Air path 56 ... Clothing.

Claims (4)

A washing tub, a rotating blade provided at the bottom of the washing tub, an outer tub containing the washing tub and storing washing water, a drive mechanism for rotationally driving the washing tub and the rotating wing, and the inside of the washing tub In a washing and drying machine equipped with a drying mechanism that blows air
A blowing port for blowing out the warm air from the drying mechanism to the upper portion of the washing tub; a tip of the blowing port is protruded from a fixed surface of the blowing port; an air passage is formed around the blowing port; A washing / drying machine comprising: a cover provided with a cover that protrudes into the washing tub from the tip of the outlet, or a ring-shaped protrusion, in the tub.   The washing / drying machine according to claim 1, wherein a blowing port for blowing out the warm air from the drying mechanism is provided in an upper portion on the outer peripheral side from the center of the washing tub, and the warm air is fed into the washing tub from the blowing port. A washing and drying machine characterized by spraying clothes. In the washing and drying machine according to claim 1 or claim 2,
A washing / drying machine characterized in that an air outlet for blowing out the warm air provided in an upper part of the washing tub is directed substantially vertically downward to blow the warm air on clothes in the washing tub. A washing tub having a plurality of through holes, a rotating blade provided at the bottom of the washing tub, an outer tub containing the washing tub and storing washing water, and a drive mechanism for rotationally driving the washing tub and the rotating wing And in the washing and drying machine provided with a drying mechanism that blows warm air into the washing tub,
An air passage for guiding the air in the washing tub is provided on an outer periphery of the outlet provided in the upper part of the washing tub, and the warm air is blown from the outlet to clothes in the washing tub. Washing and drying machine.