JP2763265B2 - Washing machine equipped with hot air / hot water supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine provided with a hot air / hot water supply device. More specifically, the present invention relates to a hot air that has passed through a laundry during a drying process, with water removed. By recirculating to the air inlet to increase heat efficiency and drying efficiency, the heating means for heating the air is used to heat the washing water supplied during the water supply process to warm the washing water, thereby increasing the washing power. And a washing machine provided with a hot air / hot water supply device with increased detergent dissolving power.

[0002]

2. Description of the Related Art FIG. 1 is a sectional view showing a structure of a general drying washing machine having a drying function. As shown in the drawing, the conventional washing machine includes a housing 100 provided with a cover on an upper portion thereof, and a water tank 600 disposed inside the housing 100 with a space defined by the housing 100. Inside the water tank 600, the water tank 600
The washing tub 400 is arranged with a constant space.

A driving unit 200 installed at a lower portion of the housing 100 and providing a driving force required for the washing machine includes a motor 203 for generating the driving force, and , A pulley 202 transmitting to the washing tub 400, a gear box 201, and a clutch 204 for intermittently driving the motor 203.

A water supply port 750 for supplying washing water to the water tub 600 is provided at an upper stage of the housing 100, and a drain valve 700 for discharging the washing water to the outside is provided with a water tub 6
It is installed at the bottom of 00.

In order to supply hot air to the washing machine during the drying process, external air is sucked into the washing tub 400 through a suction port 570 in the upper part of the space formed between the housing 100 and the water tub 600. A blower 530 to be heated, a heater 510 for applying heat to the sucked air to generate a high temperature, and a guide member 550 that accommodates the blower 530 and the heater 510 and guides external air to the washing tub 400 are installed. .

A heater 5 is provided on the outer surface of the guide member 550.
A thermostat 520 is installed to prevent overheating of the ten.

[0007] Further, a duct 800 through which the hot air supplied during the drying process comes into contact with the laundry and discharges the hot air changed into humid air extends from one side of the drain valve 700. Opening 810 located at the top of housing 100
Linked to

The operation of a conventional washing machine configured to perform not only the washing and dehydrating functions but also the drying function will be briefly described. When the machine is operated, washing water is supplied through the water supply port 750. When the washing water is sufficiently supplied, the agitator 300 is rotated left and right by the driving unit 200 to perform the washing function.

When the washing process is completed, a dewatering process is performed through a draining process and a rinsing process. During the dehydration process, the drain valve 700 is opened, and the clutch 204 transmits the driving force of the motor 203 to the washing tub 400,
0 is rotated at high speed.

When the dewatering process is completed, the stirrer 300 is intermittently rotated to rotate the laundry, the blower 530 and the heater 510 are operated, and the washing tub 400, the washing tub 400 and the water tub The drying function of drying the laundry by supplying warm air to a space formed between the washing machine and the washing machine is performed.

That is, the hot air forcedly blown is directly supplied to the washing tub 400 or the washing tub 40 is provided through a plurality of through holes (not shown) formed in the body of the washing tub 400.
After the laundry is heated, the laundry is heated and dried, the laundry is changed to humid air and discharged outside through the drain valve 700 and the duct 800.

[0012]

However, the washing machine provided with the drying function described above has many drawbacks as follows.

That is, in the conventional drying washing machine, the hot air exchanged with the laundry is discharged to the outside as it is, so that heat loss occurs.

In order to remedy the above drawbacks, if the heat-exchanged hot air is recirculated, the air containing a large amount of water is supplied to the washing tub, and the drying efficiency of the washing machine is reduced. And drying time is prolonged.

Further, the hot air containing a large amount of water cannot be discharged to the outside through the duct, but flows back to the upper portion of the water tub again through the through hole formed in the body of the washing tub, thereby improving the drying efficiency. It will further decrease.

In addition, the washing machine described above can increase the washing power by using the low-temperature water supplied from the faucet as it is in the washing water even though the heater is installed. Opportunities that can be used cannot be used effectively.

In particular, in the winter season, it is urgently required to take advantage of the above-mentioned opportunity when the temperature of the supply water is further lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first object of the present invention is to increase the heat efficiency by recirculating hot air exchanged with laundry. Is provided.

A second object of the present invention is to provide a washing machine in which the efficiency of drying is increased by removing and circulating water from hot air containing a large amount of recirculated water. is there.

A third object of the present invention is to provide a washing machine in which the heat exchange with the laundry and the warm air containing a large amount of water are prevented from flowing back to the upper portion of the water tub, thereby further increasing the drying efficiency. Is provided.

A fourth object of the present invention is to provide a washing machine in which the washing power and the detergent dissolving power are increased by using a heating means for heating the supplied air to supply the washing water while changing the washing water into warm water. Is what you do.

[0022]

SUMMARY OF THE INVENTION A washing machine to which the present invention is applied supplies hot air to the washing tub during a drying process and supplies hot washing water to the water tub during a water supply process. Means for contacting the laundry in the washing tub during the drying process to recirculate hot air containing a large amount of water by the hot air / hot water supply means; Warm air / hot water constituted by a water removing means for removing water from hot air recirculated by the guiding means and a hot air backflow blocking means formed by encircling an upper inner peripheral edge of a water tank with a ring. A supply device is provided.

The hot air / hot water supply means is installed in an upper space between the housing and the water tank, and one open end thereof is connected to the housing to form an air suction port. A guide means having the other end connected to the water tub to form an air / washing water outlet, and a blowing means provided at the air suction port for circulating air during a drying process;
Inside the guide means, a water supply means arranged at a position facing the blower means, and a heating means disposed between the blower means and the water supply means, and configured to heat circulating air and wash water. Is done.

[0024] Further, the water supply means is connected to a water faucet, and includes a water supply port disposed above the heating means, and a supply water dispersion member disposed between the heating means and the water supply port. It is composed.

With the hot air / hot water supply device of the present invention configured as described above, the washing water supplied from the water supply means during the water supply process is heated while being uniformly dispersed through the supply water dispersion means. After passing through the means, it is changed into warm water and then flows into the water tank through the outlet of the guide means.

Therefore, the detergent is easily dissolved and the washing power is improved.

Further, when the dehydration step is completed and the drying step is performed, the cool air introduced through the moisture removing means by the air blowing means and the air suction port of the guide means is changed to the warm air through the heating means. , Into the washing tub through the outlet of the guide means. The warm air flowing into the washing tub contacts the laundry and dries the laundry, and is further circulated through the drain valve and the warm air inducing means to the water removing means and the guiding means.

The hot air which is deprived of water from the laundry and recirculated in a high humidity state is mixed with the cold air in the water removing means to lower the temperature to below the dew point, and after the water is removed, The temperature is raised again by the blowing means and the heating means and flows into the washing tub.

Since the low-humidity and high-temperature air is continuously supplied by the hot-air supply device which operates as described above, the washing machine to which the present invention is applied has a simultaneous thermal efficiency and drying efficiency. It will increase.

Further, the hot air flowing back through the large number of through holes formed in the body of the washing tub causes hot air to flow between the washing tub and the water tub by the hot air backflow blocking device installed on the upper inner peripheral edge of the water tub. The air flows upward through the formed space to prevent the air from flowing back to the air outlet, so that the warm air smoothly circulates along the original route.

[0031]

Embodiments of the present invention will be described in detail below with reference to the drawings.

In each of the drawings, the same parts of the washing machine are denoted by the same reference numerals.

FIG. 2 is a sectional view of a washing machine as a whole showing the hot air / hot water supply device of the present invention.

The washing machine to which the present invention is applied, as described above in the prior art, forms the exterior of the washing machine and has a housing 10 provided with a cover 110 on the top.
A water tub 600 and a washing tub 400 are installed in the area 0. A relatively wide first space 450 is formed between the housing 100 and the water tank 600, and the driving unit 200 and the drain valve 700 are installed below the first space 450.

Further, a relatively narrow second space 650 is formed between the water tub 600 and the washing tub 400.
The inside of the washing tub 400 can be freely rotated.

The driving unit 200 includes a motor 203 for generating a driving force, and a pulley 2 for transmitting the driving force of the motor 203.
02, a gear box 201, and a clutch 204 for transmitting the driving force of the motor 203 to the agitator 300 and the washing tub 400 in a washing manner.

In the washing machine constructed as described above,
Guide member 5 for supplying hot air and hot water to a washing machine according to the present invention
60 is installed at one upper side of the first space 450.

One side of the guide member 560 is connected to the housing 100 to form an air inlet 570, and the other side is connected to an upper portion of the water tank 600 to form an outlet 580 for air and supply water.

The member forming the outlet 580 is made of a flexible member so as to accommodate vibration of the washing machine and thermal deformation due to hot water / hot air.

Inside the guide member 560, a blower 530 that mixes external air and supplies it to the washing machine, and a water supply pipe 75
0, and a water supply port 760 for supplying washing water to the washing machine.
And a heater 510 for heating the external air and the washing water.
Is installed. A thermostat 520 is installed on the outer surface of the lower portion 590 of the guide member 560 to prevent the heater 510 from overheating.

According to the present invention, a hot air containing a large amount of water is discharged by contact with the laundry in the washing tub 400.
The water tank 600 is connected to the first outlet 710 of the drain valve 700.
The overflow pipe 820 extended to the upper part of the is used. The overflow pipe 820 is supplied with too much water at the time of water supply, and is provided with a cover 610 located above the water tank 600.
It is intended to prevent the water from overflowing, and in the present invention, in order to use it as an airway for discharging hot air,
A baffle plate 840 is provided at the upper end opening of the overflow pipe 820.
Was installed. The baffle plate 840 is configured to rotate and open only in a downward direction by water pressure, and is installed so as not to open in an upward direction which is a flow direction of warm air.

A duct 830 having one end connected to the upper portion of the overflow pipe 820 extends through the side opening 810 of the housing 100 and the other end is connected to the air inlet 570 of the guide member 560. .

Accordingly, the hot air that has been subjected to heat exchange with the laundry in the washing tub 400 flows into the air inlet 570 through the overflow pipe 820 and the duct 830 and is recirculated.

Here, a means for removing moisture contained in the recirculated hot air is provided between the air inlet 570 of the guide member 560 and the duct 830, and the means is provided with a temperature / temperature. It is composed of a cool air mixing member 540 and a partition 575.

The detailed structure is shown in detail in FIG. 3, which shows another embodiment of the present invention. That is, a plurality of slits 541 are formed on a side surface of the hot / cold air mixing member 540, and hot air circulated by flowing air from the surroundings,
Plays the role of mixing.

Further, the partition plate 575 is installed so as to be perpendicular to the flow direction of air, and a plurality of through holes 576 are formed on the surface thereof.
Is provided so that the mixed air that has passed through the hot / cold air mixing member 540 passes through the through hole while hitting its surface.

Therefore, the moisture is easily removed by the warm air whose temperature has been slightly lowered by the surrounding air, and is supplied to the washing tub 400 after being changed by the warm air having a low humidity.

In addition to the configuration described above, the present invention further includes a hot air
00, the heat-exchanged hot air passed through a number of through holes (not shown) formed in the body of the washing tub 400 and the water tub 60.
Through the second space 650 formed between 0 and 0, it flows upward without being discharged to the drain valve 700, and is prevented from re-entering the washing tub 400 while containing a large amount of water.

The cross-sectional structure of the hot air backflow blocking member 900 is shown in detail in FIG.

That is, the hot air backflow blocking member 900 attached to the inner peripheral surface of the water tub 600 is protruded toward the washing tub 400 while maintaining a small gap with the washing tub 400.

Therefore, the second space 650 is vertically separated while maintaining a fine gap. Looking at the cross-sectional shape of the member 900, a triangular protrusion 910 is formed at the center, and a flexible thin plate 920 such as rubber is formed above and below the protrusion 910. . Therefore,
When water flows in from the upper part of the member 900, the thin plate 920 or the like is bent downward to allow the water to pass smoothly and to block the warm air flowing upward.

Further, even if the washing tub 400 is rotated in one direction during the spin-drying process, the washing tub 400 is not damaged.

Hereinafter, the operation of the hot air / hot water supply apparatus of the present invention configured as described above will be described. If the user puts the washing machine into the washing tub 400 and then operates the washing machine, first, while the heater 510 is heated at a high temperature, water passing through the water supply pipe 750 connected to the water faucet is supplied to the water supply port 760. Is transmitted to

The washing water that has passed through the water supply port 760 is raised to a high temperature while flowing on the surface of the heater 510, and
Supplied to The hot water supply device is of course particularly useful in the winter season when the water supply temperature is low.

When the water supply process is completed, the heater 510 stops operating, the motor 203 is operated, and the stirrer 300 is turned off.
Is rotated left and right at a low speed, a washing process is performed, and then a draining process, a water supplying process, and a rinsing process are repeatedly performed several times.

When the rinsing process is completed, the stirrer 300
The washing tub 400 is rotated at a high speed while the dehydration process is performed, and the generated water is drained by the drain valve 70.
0 is discharged to the outside through the second outlet 720. Subsequently, a drying process in which the hot air supply device of the present invention is operated is performed.

First, the blower 530 and the heater 510 are operated, and the slit 541 of the hot / cold air mixing member 540 and the like,
The surrounding air is mixed into the guide member 560 through the through hole 576 of the partition plate 575 (see FIG. 3).

The mixed air passes through a heater 510 disposed in front of the blower 530 and changes into high-temperature air, and is discharged from the outlet 580 of the guide member 560 to the washing tub 40.
It is discharged facing 0.

The hot air comes into contact with the laundry placed on the stirrer 300, which is disposed in the washing tub 400 and rotated left and right at a low speed by the drive of the motor 203. In accordance with this, the warm air deprives the laundry of moisture and turns into high-humidity air, and the upward flow is blocked by the above-described warm-air backflow blocking member 900 while the through-hole (not shown) of the washing tub 400 is provided. And flow downward.

The high-humidity hot air that has flowed downwardly flows through the first outlet 710 of the drain valve 700 to the overflow pipe 8.
20, while flowing upward, hits the baffle plate 840 located at the upper end of the overflow pipe 820, and the water contained in the air condenses first.

The condensed water is supplied to the overflow pipe 82.
The hot air that flows down along the line 0 and is discharged through the drain valve 700 and has a slightly inferior humidity passes through the duct 830.

The hot air that has passed through the duct 830 is supplied to the hot / cold air mixing member 540 by the slit 5 of the member 540.
It is mixed with the surrounding low-temperature air that flows in from 41 or the like, and the temperature falls below the dew point.

The mixed air lowered to a temperature below the dew point is
In front of the hot / cold air mixing member 540, it is installed at right angles to the direction of air flow, and while hitting a partition plate 575 having a large number of through holes 576 on its surface, moisture is removed and the air becomes low in humidity (FIG. 3). The air is further supplied to a blower 530.
After being forcedly blown, the air is further changed to high-temperature air through a heater 510, and then supplied to the washing tub 400.

The process described above is continuously performed, and the drying of the laundry is completed in a short time by supplying the warm air with low humidity.

Here, the water generated by hitting the partition 575 is supplied to the through hole 576 formed at the lowermost end of the partition 575.
A, flows along the lower end 590 of the guide member 560, and flows into the water tank 600.

FIG. 3 shows another embodiment of the present invention. The difference from FIG. 2 is that the configuration and position of the water supply port 760 are changed, and the shape of the guide member 560 is changed accordingly. It is. That is, in this embodiment, the water supply port 7
In order to more effectively exchange heat with the heater 510, the water supply port 760 is disposed at an upper portion 595 of the guide member 560, and the water supply port 760 disposed at the upper portion of the water supply port 760, The water supply dispersing member 770 is further provided between the heaters 510 located immediately below the water supply port 760.

The water supply dispersing member 770 is slightly inclined downward from both sides toward the center from the center, and a plurality of through holes 771 are formed on the surface thereof. Therefore, the washing water supplied from the water supply port 760 during the water supply process flows along the surface of the water supply distribution member 770 and is dispersed, and
71, the water is evenly sprayed on the entire surface of the heater 510, so that the heat of the heater 510 is more effectively transferred to the washing water.

The hot air supply and circulation process according to this embodiment is as follows.
The description is omitted because it is the same as the above-described embodiment.

FIG. 4 shows another embodiment of the present invention, in which a water supply port 76 disposed above a heater 510 is provided.
At 0, a flow control valve (not shown) is installed to allow only a small flow rate to pass, and a second water supply port 780 provided with an open / close valve (not shown) below the heater 510 is further installed. is there.

Therefore, in the case of warm water washing, the second water supply port 780 is closed so that the washing water is supplied through the water supply port 760. In order to supply the washing water, the water supply port 760 is closed, and the washing water is supplied from the second water supply port 780 quickly.

[0071]

The hot air / hot water supply device of the present invention having the above-described configuration and operation can supply hot water to the washing machine with a simple configuration, so that the detergent can of course have a dissolving power. This has the effect of improving detergency and rinsing properties.

Further, heat is exchanged with the laundry during the drying process.
After the moisture is removed from the hot air having a high humidity, the hot air is further supplied to the washing tub, so that the heat efficiency is increased and the drying time is shortened.

Further, the above effect is further improved because the warm air exchanged with the laundry is prevented from flowing upward through the space between the washing tub and the water tub. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a washing machine showing a conventional hot air supply device.

FIG. 2 is a cross-sectional view of a washing machine showing a hot air / hot water supply device according to a first embodiment of the present invention.

FIG. 3 is a sectional view of a washing machine showing a main part of a hot air / hot water supply device according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing a main part of a hot air / hot water supply device according to a third embodiment of the present invention.

[Explanation of symbols]

 510 Heater 530 Blower 540 Hot / cold air mixing member 560 Guide member 575 Separator 700 Drain valve 760 Water supply port 820 Overflow pipe 830 Duct 900 Hot air backflow blocking member

──────────────────────────────────────────────────続 き Continued on the front page (31) Priority claim number 1993 27679 (32) Priority date December 14, 1993 (33) Priority claiming country South Korea (KR) (58) Field surveyed (Int. Cl. ⁶ , DB name) D06F 25/00 D06F 39/04 D06F 58/02

Claims (4)

(57) [Claims] 1. A housing, a water tank arranged inside the housing with a space defined by the housing, and a water tank arranged inside the water tank with a space defined by the water tank, and a plurality of bodies are provided on a body thereof. A washing tub with a through hole,
It is configured to have a installed drainage valve at the lower end of the water tub
A washing machine for supplying hot air to the washing tub during a drying process and supplying hot washing water to the water tub during a water supply process; Hot air induction means for recirculating hot air containing a large amount of water in contact with the laundry in the tub to the hot air / hot water supply means; and water from the hot air recirculated by the hot air induction means. The hot air / hot water supply means has an open end connected to the housing to form an air suction port, and the open other end has the water tank. A guide unit connected to the air supply unit and forming an outlet of air / washing water; a blower unit installed at the air intake port to circulate air during a drying process; Supplied from the blowing means and the water supply means Heating means for heating circulating air and washing water to be supplied, wherein the water supply means is connected to a water tap and is disposed at an upper part of the heating means, and is disposed at a lower part of the water supply port. Supply water dispersing means, the supply water dispersing means is inclined downward from the center toward both sides so that the water supplied from the water supply port is divided into right and left sides and flows. A washing machine provided with a hot air / hot water supply device, comprising: a formed plate; and a plurality of outflow holes formed at regular intervals on the surface of the plate. . 2. A hot air / hot water supply device according to claim 1 is provided.
In the washing machine, the hot air / hot water supply means may pass through a through hole or the like of the washing tub.
Spent warm air is formed between the washing tub and the water tub.
Flows upward through the space, and exits the guide means
Formed on the inner periphery of the water tank to prevent backflow
The warm air backflow barrier cross section is provided, the warm air backflow shut-off means, formed in said water tank periphery
A protrusion, and a flexible member attached to the upper and lower portions of the protrusion
And the hot air backflow blocking means.
Water flowing out of the part deforms the thin plate etc. downward
Flow through the lower portion of the hot air backflow blocking means
Hot air / hot water supply characterized by shutting off hot air
Washing machine with equipment. 3. The hot air / hot water supply device according to claim 1 is provided.
In the washing machine, the hot air inducing means may be connected to the water tank through one outlet of the drain valve.
Overflow extending to the top of the
w) a pipe, extending from the top of the overflow pipe,
A duct connected to the hot air / hot water supply means,
-Baffle installed on the open top of the bar flow pipe
(Buffle).
A washing machine provided with a hot air / hot water supply device. 4. A hot air / hot water supply device according to claim 1 is provided.
In the washing machine, the moisture removing means is provided with an air suction device for the hot air / hot water supply means.
Located at the entrance to allow external air to flow into its fuselage
With a number of slits to allow hot air to be recirculated
A hot / cold air mixing member for mixing cold air, and a hot / cold air mixing member provided in front of the hot / cold air mixing member in a direction perpendicular to the air guiding direction.
And a large number of through holes are formed in the surface thereof,
Moisture is removed from the air whose temperature has been lowered through the cold air mixing member.
And a separating plate to be removed.
Washing machine with hot air / hot water supply device.