KR100556423B1 - drum-type washing machine with dryer and washing method in washing machine - Google Patents

Abstract

The present invention removes the drying duct and the condensation duct which is installed inside the combined-use washing machine, which has a large effect on the flow resistance, and during the drying stroke, necessary hot air is secured and the condensation efficiency is improved. It is intended to provide.

To this end, the present invention is installed in the cabinet, at least one water supply port is formed on one side, the tub formed so that the cooling water supplied through the water supply flows along the inner circumferential surface; A water supply unit connected to the water supply port to provide cooling water to the tub from the outside; A drum rotatably installed in the tub, the circumferential surface of which is formed with a through hole; A heater duct installed at an upper side of the tub, and having a heater therein for heating air therein and guiding the heated air to the tub; And, one end is connected in communication with the heater duct, the other end is connected in communication with the tub, the drying duct characterized in that it comprises a connection duct: for guiding the hot air discharged through the tub to the heater duct: A drum washing machine is provided.

Drying drum washing machine, heater duct, connecting duct, cooling water circulation device

Description

Drum-type washing machine with washing and washing method {drum-type washing machine with dryer and washing method in washing machine}

Figure 1 is a side cross-sectional view schematically showing a drum washing machine according to the prior art

Figure 2 is a side cross-sectional view schematically showing a dry drum washing machine according to an embodiment of the present invention

Figure 3 is a schematic diagram showing the configuration of a dry drum washing machine according to an embodiment of the present invention.

** Explanation of symbols for main parts of drawings **

10: cabinet 40: drum

41: through-hole 100: tub

101: water supply port 110: outer peripheral surface of the tub

120: inner surface of the tub 200: connection duct

300: heater duct 310: heater

410: cooling water circulation flow path pipe 420: circulation pump

430: temperature sensor

The present invention relates to a dry drum washing machine, and more particularly, to a drying drum washing machine which can reduce noise and reduce the volume of a drying duct by removing a blowing fan in the drying duct.

In general, the drum washing machine is a device for washing laundry by rotating the drum by the driving force of the motor in a state in which detergent, washing water and laundry are put into the drum. The drum washing machine is less damage to the laundry and the laundry is not tangled well, knocking and rubbing has the advantage of producing a laundry effect.

Hereinafter, with reference to the accompanying Figure 1 with respect to the drum washing machine according to the prior art as follows.

1 is a side cross-sectional view schematically showing a drum washing machine according to the prior art.

As shown in FIG. 1, the drum washing machine according to the related art includes a cabinet 10 having a laundry inlet formed on a front surface thereof, a door 20 installed to be opened and closed at a laundry inlet of the cabinet 10, and the cabinet ( 10) a metal tub 30 installed to store wash water therein, a drum 40 rotatably installed in the tub 30, and the drum 30 installed in the tub 30. It is configured to include a motor device 50 for transmitting a driving force to.

Here, the door glass 21 is installed in the door 20 to protrude toward the opening side of the tub 30.

In addition, a hanging spring 31 for supporting the tub 30 is installed between the inside of the upper surface of the cabinet 10 and the upper surface of the outer circumferential surface 110 of the tub 30. A friction damper is provided between the lower surface inner side and the tub 30 outer peripheral surface 110 lower side to damp the vibration of the tub 30 generated when the drum washing machine is operated.

In addition, the motor device 50 is an indirect driving method for transmitting the driving force generated from the motor 51 to the washing shaft 53 by the belt 52 to rotate the drum 40.

On the other hand, a drying duct 60 is installed on the upper inner surface of the cabinet 10. In this case, a blowing fan 62 and a heater 61 are built in the drying duct 60 to discharge hot air. One end of the drying duct 60 is installed in communication with the door 20 side opening of the tub 30.

Here, one end of the drying duct 60 and the opening of the tub 30 are connected by a gasket 80. The gasket 80 is installed along the front inner edge of the tub 30 and has a corrugated shape to accommodate the vibration of the tub 30. Accordingly, hot air is prevented from leaking through the connection portion between the drying duct 60 and the tub 30.

In addition, the tub 30 is provided with a condensation duct 70 so as to communicate with the drying duct (60). At this time, one end of the condensation duct 70 is connected to the outer surface of the tub 30, the other end of the condensation duct 70 is connected to the drying duct (60). The condensation duct 70 is provided with a water supply 71 for supplying cooling water to condense moisture in the air to remove moisture.

In addition, a drainage device 90 for discharging the washing water and the cooling water accumulated in the tub 100 to the outside is installed below the tub 30.

The drum washing machine configured as described above performs washing, rinsing, dehydrating and drying operations. Hereinafter, the drying operation of the drum washing machine will be described.

When the drying operation of the drum washing machine is started, power is applied to the heater 61 of the drying duct 60. At this time, as the blowing fan 62 and the heater 61 are operated, the blowing fan 62 blows hot air.

The hot air is introduced into the drum 40 by hitting the inclined portion of the door glass 21 by the guide of the drying duct 60.

Then, the hot air introduced into the drum 40 heats the laundry to evaporate the moisture contained in the laundry. At this time, by stirring the laundry while the drum 40 is rotated at a low speed, the laundry is evenly exposed to hot air to help evaporation of moisture.

The evaporated water is discharged through the condensation duct 70 in a state of being contained in the air. At this time, by spraying water from the water supply 71 of the condensation duct 70, moisture in the air is removed. The air from which moisture is removed is introduced into the drying duct 60 again, and the air introduced into the drying duct 60 is converted into hot air by the heater 61 and the blower fan 62 and re-introduced into the drum 40. Drying is performed on the laundry.

On the other hand, the moisture and the coolant is accumulated in the lower side of the tub (30).

At this time, the water and cooling water accumulated in the lower side of the tub 30 is discharged to the outside through the drainage device (90).

However, the drying apparatus and the condensation structure of the conventional dry-use drum washing machine configured as described above have the following problems.

First, in order to supply the hot air in the drum 40, the drying duct 60 in which the heater 61 and the blowing fan I62 are built is installed in a state that occupies much space in the cabinet 10. There was a problem that acts as an obstacle to implement a large capacity of 40).

Second, in order to introduce the hot air passing through the condensation duct 70 into the drying duct 60, there is a problem in that the operation of the blow fan 62 installed therein has a large noise.

Third, in order to condense the hot air with moisture, a long condensation duct 70 having a large space in the cabinet 10 has to be installed.

At this time, the flow path resistance received while the hot air flows in the condensation duct 70 occupies 50% of the total resistance, there is a problem that consumes a lot of power consumption according to the resistance.

Fourth, in order to increase the condensation efficiency of the hot air with moisture, a means for scattering the cooling water was required, and thus, there was a problem in that the flow path resistance received by the hot air was further increased.

Fifthly, the conventional dry drum washing machine is condensed by the cooling water supplied from the condensation duct 70 to the water supply 71 with moisture, and the cooling water used therein is accumulated under the tub 30. When the drain pump 90 is operated, it is thrown out.

For this reason, since a new coolant must always be supplied to condense, a large amount of coolant is inefficiently consumed, causing a waste of energy and resources.

The present invention is to solve the above-mentioned problems, the drying duct and condensation duct which is installed inside the combined-use washing machine to remove the large effect on the flow path resistance, but the hot air required during the drying stroke is secured, condensation efficiency is improved It is an object of the present invention to provide a dry drum washing machine that can be made.

In addition, by allowing the coolant to be selectively recycled according to the temperature of the coolant accumulated in the tub, the purpose of the present invention is to provide a dry-use drum washing machine that reduces the supply amount of the coolant and improves the reliability of the product.

In order to achieve the above object, the present invention is installed in the cabinet, at least one or more water inlet is formed on one side, the tub formed so that the cooling water supplied through the water inlet flows along the inner circumferential surface; A water supply unit connected to the water supply port to provide cooling water to the tub from the outside; A drum rotatably installed in the tub, the circumferential surface of which is formed with a through hole; A heater duct installed at an upper side of the tub, and having a heater therein for heating air therein and guiding the heated air to the tub; And, one end is connected in communication with the heater duct, the other end is connected in communication with the tub, drying duct characterized in that it comprises a connection duct: for guiding the hot air discharged through the tub to the heater duct Provide a combined drum washing machine.

At this time, the present invention is to rotate the drum at a high speed to ensure the amount of hot air and to increase the flow rate of the hot air to dry the dried matter in the drum; When the amount of hot air is secured and the speed of the hot air flows rapidly, turning on the heater to maintain the temperature of the hot air; Rotating the drum at a low speed to reduce the amount of hot air, and slowing the flow rate of the hot air to mix dry matter in the drum; When the amount of hot air is reduced, and the speed of the hot air flows slowly, turning off the heater to prevent the temperature of the hot air from rising.

Embodiments of the present invention will be described in more detail with reference to the accompanying drawings, FIGS.

For reference, prior to describing the configuration of the present invention, in order to avoid duplication of description of the prior art reference to the same reference numerals will be referred to.

Figure 2 is a side cross-sectional view schematically showing a dry drum washing machine according to an embodiment of the present invention, Figure 3 is a schematic diagram showing the configuration of a dry drum washing machine according to an embodiment of the present invention.

Here, the arrow of the solid line shown in the drum of Figure 3 shows the rotation direction of the drum, the arrow of the dotted line shows the state in which hot air flows.

That is, as shown in Figure 2 and 3, the combined drying drum washing machine according to an embodiment of the present invention is installed in the cabinet 10, at least one water supply port 101 is formed on one side thereof, the water supply A tub (100) formed to flow along the inner circumferential surface (120), and a water supply unit connected to the respective water inlets (101) to provide cooling water to the tub (100) from the outside; The tub 100 is rotatably installed, the peripheral surface of which is provided with a drum 40 having a through-hole 41, and installed above the tub 100, a heater for heating the air therein is built-in And a heater duct 300 for guiding the heated air to the tub 100, and one end thereof is connected to the heater duct 300, and the other end thereof is connected to the tub 100. Guide the hot air discharged through the tub 100 to the heater duct 300 It is configured to include a connection duct (200).

Here, the heater duct 300 is installed on the upper side of the tub 100, one end is connected to the front surface of the tub 100, the other end is connected to one end of the connection duct 200, the drum 40 It is provided to heat the hot air generated in the) and re-supply to the drum (40).

In addition, one end of the connection duct 200 and the tub 100 are connected along the tangential direction of the outer circumferential surface 110 of the tub to ensure the amount of hot air supplied from the tub 100.

This is to increase the discharge area of hot air discharged from the tub 100 to the connection duct 200 and to discharge a large amount of hot air.

At this time, as shown in Figure 3, the drum 40 is preferably rotated in a direction opposite to the tangential direction of the tub connected to the connection duct 200, in order to discharge the hot air to the connection duct 200. Do.

The water inlet 101 is installed at a portion through which the cooling water supplied to the tub can flow along the inner circumferential surface 120 of the tub, thereby cooling water from the water supply 71 to the tub 100. To supply.

At this time, the water supply port 101 is provided with two installed in order to quickly supply a large amount of cooling water to the tub (100).

Drying drum washing machine according to an embodiment of the present invention is configured to further include a cooling water circulation device for circulating the cooling water accumulated in the lower side of the tub (100).

At this time, as shown in Figure 2, the cooling water circulation device comprises a cooling water circulation flow path tube 410, the circulation pump 420, and the temperature sensor 430.

Here, one end of the cooling water circulation flow passage tube 410 is installed at the lower side of the tub 100, and the other end is connected to the water supply 71, and the cooling water accumulated in the lower side of the tub 100 is supplied to the water supply 71. Guide to.

In addition, the circulation pump 420 is provided on the cooling water circulation flow path tube 410 to pop the cooling water accumulated in the tub 100 into the cooling water circulation flow path tube 410.

The temperature sensor 430 is provided at a predetermined lower side of the tub 100 to measure the temperature of the coolant accumulated in the tub 100.

At this time, the cooling water is discharged to the outside according to the temperature of the cooling water measured from the temperature sensor 430 or discharged to the cooling water circulation flow path tube 410 to supply water to the tub 100 again.

On the other hand, one end of the coolant circulation flow path tube 410 connected to the water supply 71 to prevent the cooling water flowing into the coolant circulation flow path tube 410 from the water supply 71 to the tub 100. Connection is preferable in the state bent downward at a position higher than the water supply 71.

In addition, the lower side of the tub 100 is provided with a drainage device 90 for discharging the depleted cooling water of the tub 100 to the outside.

Referring to the operation and operation effect during the drying stroke of the combined drying drum washing machine according to an embodiment of the present invention having such a configuration as follows.

That is, the drying method of the combined drum washing machine according to an embodiment of the present invention comprises the steps of drying the dried material in the drum 40 by increasing the flow rate of the hot wind while ensuring the amount of hot air by rotating the drum at high speed; When the amount of hot air is secured and the hot air flows rapidly, the heater 310 is turned on to maintain the temperature of the hot air, and the drum 40 is rotated at a low speed to reduce the amount of hot air. Mixing the dry matter in the drum 40 by slowing the flow rate of the mixture; and decreasing the amount of hot air, and slowing down the flow of the hot air to turn off the heater 310 to prevent the temperature of the hot air from rising. It includes the steps to perform.

More specifically, the drum 40 is rotated at high speed to secure the amount of hot air for drying the dried material in the drum 40 and to increase the flow rate of the hot air.

At this time, the dried material in the drum 40 is dried by a sieve adhered to the inner circumferential surface of the drum 40 by centrifugal force due to the high speed rotation of the drum.

At this time, the hot air in the drum 40 heats the dry matter to evaporate the moisture contained in the dry matter.

Next, the hot air having the moisture is discharged to the inner circumferential surface 120 side of the tub 100 through the through hole 41 of the drum.

Next, the hot air condensed on the tub inner circumferential surface 120 flows to the heater duct 300 through the connection duct 200 in a state where the temperature is deprived during the condensation process.

 At this time, the heater 310 of the heater duct 300 is maintained in an on state.

This, a large amount of hot air generated by the high-speed rotation of the drum 40 flows to the heater duct 300 through the connection duct 200 in a state where the temperature is lowered after the condensation process, the drum 40 again In order to maintain the temperature of the hot air for drying the dried matter in the) is not further lowered, so that it can be supplied back into the drum (40).

In other words, when the drum 40 is rotated at a high speed, the hot air passes quickly through the heater duct 300 through the connection duct 200.

At this time, the hot air having a high flow rate passes quickly through the heater 310 of the heater duct, and the time for contacting the heater 310 is shortened.

At this time, since the heater 310 is turned on, even if the heater 310 of the hot air passes quickly, the temperature for drying the dried material in the drum 40 can be maintained without increasing the set temperature.

Meanwhile, in the process of mixing the dry matter in the drum 40, the drum 40 is rotated at a low speed.

At this time, by being rotated at a low speed of the drum 40, the dried material in the drum 40 is mixed while repeatedly attaching to and falling off the inner circumferential surface of the drum.

At this time, the heater 310 of the heater duct 300 is kept off.

This, the hot air generated by the low-speed rotation of the drum 40 flows to the heater duct 300 through the connection duct 200 in a state in which the temperature is lowered after the condensation process, the dry matter in the drum 40 again This is to allow the temperature of the hot air to be dried to be maintained without increasing, so that it can be re-supplied into the drum 40.

More specifically, when the drum 40 is rotated at a low speed, the hot air passes slowly through the heater duct 300 through the connection duct 200.

At this time, the slow wind flows slowly through the heater 310 of the heater duct, and the time for contacting the heater 310 becomes long.

At this time, since the heater 310 is turned off but the heater 310 gradually cools down when the heater 310 is turned off from the temperature at which the heater 310 is turned on, the hot air slowly passes through the heater 310. The set temperature for drying the dry matter in the drum 40 can be maintained.

Through this process, the drying stroke is performed by hot air generated by the rotation of the drum 40.

Next, the process of condensing the hot air heating the laundry in the drum during the drying operation will be described.

Next, the hot air heating the dried material in the drum 40 is discharged to the inner circumferential surface 120 side of the tub through the through hole 41 of the drum in a state in which the dry water is absorbed.

At this time, the water supply 71 supplies cooling water to the inner circumferential surface 120 of the tub 100 through each water supply port 101.

At this time, the cooling water flows along the inner circumferential surface 120 of the tub 100, and condensation is performed with the hot air having the moisture.

At this time, the moisture is condensed between the hot air and the cooling water with moisture is combined with the cooling water is accumulated in the lower side of the tub (100).

Next, the cooling water accumulated in the lower side of the tub 100 is measured by the temperature sensor 430.

At this time, when the temperature of the cooling water is measured below the set temperature, the circulation pump 420 is operated to pump the cooling water into the cooling water circulation flow channel 410.

Next, the cooling water punctured into the cooling water circulation channel 410 is supplied back to the water supply port 101 of the tub through the cooling water circulation channel 410.

On the other hand, when the temperature of the cooling water is measured above the set temperature, the cooling water accumulated in the lower side of the tub 100 through the drainage device 90 at the lower side of the tub 100 is discharged to the outside.

Next, the hot air from which moisture is removed by condensation is introduced into the heater duct 300 through the connection duct 200 connected to the tub 100, reheated by the heater 310, and then again the drum 40. Resupply to

The laundry is dried while repeatedly performing this series of procedures.

Drying drum washing machine according to the above-described embodiment does not have a drying duct and a condensation duct in the cabinet 10, the practical use of the space of the cabinet 10, it is possible to implement a large capacity of the drum 40 have.

In addition, since the hot air is secured by the high speed rotation of the drum 40, the blowing fan 62 installed in the conventional drying duct 60 is removed, so that the noise generated during the drying stroke is reduced.

In addition, the conventional drying duct 60 and the condensation duct 70 is removed, and through the short connection duct 200 and the heater duct 300, the hot air is recirculated to reduce the flow path resistance received by the hot air, A large amount of hot air is secured, thereby improving power consumption.

In addition, since the cooling water circulation flow path device is installed, the cooling water supplied to the tub 100 can be selectively recycled. Thus, the amount of cooling water used during the condensation process can be drastically reduced compared to the conventional method.

As described above, the present invention, as described above, by removing the drying duct and the condensation duct in the combined-use drum washing machine of the present invention, the cooling water circulator is provided, the following effects.                     

First, as much space as the drying duct and the condensation duct inside the cabinet is removed, the drum can have a large capacity.

Second, in order to secure hot air for drying the laundry in the drum, by using the rotational force of the drum, the blowing fan installed in the conventional drying duct is removed, thereby reducing the noise generated during the drying administration.

Third, the drying duct and the condensation duct are removed, and the hot air is recirculated through the shorter heater duct and the connecting duct, thereby reducing the flow resistance of the hot wind, thereby securing a large amount of hot air, thereby reducing power consumption. It is effective.

Fourth, since the circumferential surface of the tub having a large area is used to condense the hot air with moisture, condensation efficiency is improved.

Fifth, since the cooling water circulating device is installed, the cooling water supplied to the tub can be selectively recycled, thereby significantly reducing the amount of cooling water supplied for condensation during the laundry drying process, compared to the conventional method. Have

Claims (6)

A tub installed in the cabinet and having at least one water supply port formed on one side thereof, the cooling water supplied through the water supply port flowing along an inner circumferential surface thereof; A water supply unit connected to the water supply port to provide cooling water to the tub from the outside; A drum rotatably installed in the tub, the circumferential surface of which is formed with a through hole; A heater duct installed at an upper side of the tub, and having a heater therein for heating air therein and guiding the heated air to the tub; And, One end is connected in communication with the heater duct, the other end is connected in communication with the tub, drying duct drum washing machine, characterized in that it comprises a connection duct: for guiding the hot air discharged through the tub to the heater duct . The method of claim 1, Drying drum washing machine characterized in that the connection between one end of the connecting duct and the tub is installed along the tangential direction of the outer peripheral surface of the tub to ensure the amount of air supplied from the tub. The method according to claim 1 or 2, The water inlet Drying drum washing machine, characterized in that the cooling water supplied to the tub through the water inlet is installed in a portion that can flow along the inner peripheral surface of the tub. The method according to claim 1 or 2, Drying drum washing machine further comprises a cooling water circulation device for circulating the cooling water accumulated in the lower side of the tub. The method of claim 4, wherein The cooling water circulator A coolant circulation flow passage tube having one end installed at a lower side of the tub and the other end connected to the water supply unit and guiding cooling water accumulated at a lower side of the tub to the water supply unit; A circulation pump provided on the cooling water circulation flow path tube and for pumping the cooling water accumulated in the tub into the cooling water circulation flow path tube; And, Drying drum washing machine characterized in that it comprises a temperature sensor provided on the lower side of the tub, the temperature of the cooling water accumulated in the tub. Rotating the drum at a high speed to secure the amount of hot air and speeding up the flow rate of the hot air to dry the dried matter in the drum; When the amount of hot air is secured and the speed of the hot air flows rapidly, turning on the heater to maintain the temperature of the hot air; Rotating the drum at a low speed to reduce the amount of hot air, and slowing the flow rate of the hot air to mix dry matter in the drum; And reducing the amount of hot air and turning off the heater when the speed of the hot air flows slowly, thereby preventing the temperature of the hot air from rising.

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