KR100826038B1 - A method for controlling of seam spray in a laundry dryer - Google Patents

Abstract

The present invention relates to a dryer, and more particularly, to a method for controlling steam fractionation of a dryer having a steam spraying device for spraying steam into a drying drum.

Steam injection control method of the dryer according to the invention the laundry is introduced into the drying drum; Inputting a steam drying setting button; Steam is injected into the drying drum; Sensing humidity in the drying drum by a humidity sensor; Comparing the detected humidity value with the set humidity value by the controller; Controlling the steam injection amount by the controller; And ending the steam drying process.

By the steam injection control method of the dryer according to the present invention, the user has an effect that the wrinkles are easily removed when the laundry is dried in the wrinkled state and the wrinkles are excessively caught.

Dry drum, steam generator, heating unit

Description

A method for controlling of seam spray in a laundry dryer}

1 is a side cross-sectional view showing a dryer equipped with a steam generator according to the spirit of the present invention.

Figure 2 is a perspective view showing the internal structure of the dryer.

3 is a perspective view schematically showing a steam generator mounted on a dryer according to the spirit of the present invention;

4 is a side cross-sectional view taken along the line II ′ of FIG. 3.

5 is another embodiment of the steam generating device mounted on the dryer according to the spirit of the present invention.

FIG. 6 is a cross-sectional view taken along the line II-II ′ of FIG. 5.

7 is a flowchart showing a first embodiment of a steam drying process according to the spirit of the present invention.

8 is a flowchart showing a second embodiment of the steam drying process according to the spirit of the present invention.

9 is a flowchart showing a third embodiment of the steam drying process according to the spirit of the present invention.

<Description of the symbols for the main parts of the drawings>

100: steam generator 110, 220: water supply nozzle

120, 230: steam nozzle 130: steam generating tube

140, 240: heater 200: steam generator

The present invention relates to a dryer, and more particularly, to a method for controlling steam fractionation of a dryer having a steam spraying device for spraying steam into a drying drum.

In general, a dryer refers to a laundry in which washing is completed and a dehydration process is completed, and then into a drying drum. Then, a dryer supplies hot air into the drying drum to evaporate moisture, thereby drying the laundry. Home appliances.

In detail, the dryer includes a drying drum into which laundry is introduced, a driving motor for driving the drying drum, a blowing fan for blowing air into the drying drum, and a heating unit for heating air introduced into the drying drum. . The heating unit is divided into an electric type using high temperature electric resistance heat generated by heating a heating wire and a gas type so that heat is generated from combustion of the gas.

In addition, a typical dryer is a condensation type dryer that circulates the hot and humid air as it exits the drying drum without being discharged to the outside of the dryer, and heat exchanges with the outside air in the condenser, and a high temperature and humidity passing through the drying drum It is divided into gas dryers that allow air in a state to be discharged directly to the outside.

On the other hand, some consumers may leave the laundry inside the washing drum for a certain time without taking out the laundry as soon as the laundry is completed. In this case, the laundry is dried in a state of being in close contact with the inner circumferential surface of the drum during the dehydration process, the wrinkles are excessively caught. In particular, garments such as shirts must be ironed or rinsed again in water when the wrinkles become excessively pleated.

In this case, when a large amount of laundry having a lot of wrinkles is generated, an apparatus or a course capable of easily removing the wrinkles of the laundry and reducing it to a state suitable for ironing is required.

The present invention has been proposed to satisfy the above needs, and when the laundry is completely dried and the wrinkles are excessively caught in a completely dried state, the dryer can be easily removed and changed to a suitable state for ironing. It aims to provide.

Steam spray control method of the dryer according to the present invention for achieving the object as described above is a step of washing the laundry into the drying drum; Inputting a steam drying setting button; Steam is injected into the drying drum; Sensing humidity in the drying drum by a humidity sensor; Comparing the detected humidity value with the set humidity value by the controller; Controlling the steam injection amount by the controller; And ending the steam drying process.

Steam spray control method of the dryer according to the invention in another aspect is a step of washing the laundry into the drying drum; Inputting a steam drying setting button; Rotating the drying drum at the same time as the steam is injected into the drying drum; Driving the drying fan; Sensing humidity in the drying drum by a humidity sensor; Comparing the detected humidity value with the set humidity value by the controller; Controlling the steam injection amount by the controller; And ending the steam drying process.

By the control method as described above, the user has an effect that the wrinkles are easily removed when the laundry is dried in a wrinkled state and the wrinkles are excessively caught. In addition, even when the amount of the wrinkled cloth is excessively large, there is an effect that can easily remove the wrinkles of the laundry through the steam drying process and change to a state capable of ironing.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of other inventive inventions or the scope of the present invention can be easily made by adding, changing, or deleting other elements. I can suggest.

1 is a side cross-sectional view showing a dryer equipped with a steam generator according to the spirit of the present invention, Figure 2 is a perspective view showing the internal structure of the dryer.

Here, in order to explain the dryer to which the idea of the present invention is applied, a condensation type dryer will be described as an example. However, it is apparent that the idea of the present invention is naturally applicable not only to condensation type but also to exhaust type dryer.

1 and 2, a clothes dryer 10 equipped with a steam generator according to the present invention includes a drying drum 15 into which laundry is introduced, a front cover 14 which protects the drying drum and forms an appearance. The back cover 12 and the top cover 13 are included.

In detail, the dryer 1 is mounted on the rear surface of the front cover 11, the supporter cover 28 supporting the front opening of the drying drum 15, and the front cover 11. A door 24 for opening and closing the opening of the drying drum 15 and a control panel 14 mounted on an upper portion of the front cover 11 and having various buttons for inputting drying conditions are included.

In addition, a drying fan 19 for allowing air in the drying drum 15 to circulate in the dryer 1, and circulating air passing through the drying drum 15 by the drying fan 19 is again dried. (15) a drying duct 17 for guiding the flow of circulating air to be introduced into the inside, and a heater 18 mounted inside the drying duct 17 to increase the temperature of air introduced into the drying drum 15. ), A steam generator 100 mounted on an outer side of the drying drum 15 to generate steam, a water supply hose 110 to supply water at room temperature to the steam generator 100, and the steam generator ( A steam nozzle 120 for injecting the steam generated by the 100 into the drying drum 15 is further included. In addition, one side of the supporter cover 28 supporting the front portion of the drying drum 15 is equipped with a humidity sensor 30 for detecting the humidity of the drying drum 15 in the steam drying process.

In addition, the base 23 is seated on the lower side of the drying drum 15, the flow path of the circulating air (A) and the flow path of the indoor air (B) for heat exchange with the circulating air therein, and the base 23 A driving motor 20 seated on the top to drive the drying drum 15, a belt 16 transmitting the rotational force generated by the driving motor 20 to the drying drum 15, and the driving A cooling fan 22 connected to the motor shaft 21 of the motor 20 to suck indoor air, and a condenser 26 mounted on one side of the base 23 to exchange heat between the indoor air and the circulating air. More included.

Referring to the steam drying process of the condensation type dryer 10 according to the present invention having the above configuration, first, the user opens the door 24 and injects laundry into the drying drum 15. Then, the steam drying course is input through the input unit mounted on the control panel 14. Then, press the operation button to start drying. Then, water is supplied to the steam generator 100 through the water supply hose 110, and is heated by a heater mounted therein. The steam generated by the steam generator is introduced into the drying drum 15 through the steam nozzle 120.

On the other hand, when the drying process is started, the drive motor 20 is operated, and the belt wound around the outer peripheral surface of the drying drum 15 and the motor shaft 21 by the rotation of the motor shaft 21 while the The drying drum 15 is rotated together. Here, it will be appreciated that the cooling fan 22 and the drying fan 19 may be driven together or selectively driven when the driving motor 20 rotates.

In addition, the heater 18 mounted in the drying duct 17 is heated to increase the temperature of the air flowing into the drying drum 15. Here, it is preferable that the operation of the heater 18 is controlled by the control unit according to the general drying process and the steam drying process. In detail, even when the drying drum is rotated in the steam drying process, it is necessary to control the operation of the heater 18 by the controller when it is necessary to prevent the application of power to the heater 18 so that heat is not generated.

In addition, by operating the drying fan 19, the circulating air introduced into the drying drum 15 is moved to the circulation passage 25 through the door lint filter 241 mounted on the inner surface of the door 24. Done. Then, lint and the like are filtered while passing through the door lint filter 241 and the body lint filter formed at the inlet of the circulation passage. In addition, the circulating air moving along the circulation passage 25 moves to the condenser 26. In addition, the indoor air sucked by the cooling fan 22 also moves to the condenser 26. Then, the temperature of the circulating air is lowered through the condenser 26, and the moisture contained in the circulating air is condensed. In addition, the condensed water is collected in the condensate storage unit 27 mounted on an outer side of the drying drum. In addition, the indoor air sucked by the cooling fan 22 passes through the condenser 26 and is discharged back to the room.

Here, the drying fan 19, the cooling fan 22, the heater 18 and the like is preferably controlled by a control unit so as not to be operated according to the type of drying course.

On the other hand, the details of the process occurring inside the dryer 10 when the user selects the steam drying course will be described in more detail through a flowchart below.

3 is a perspective view schematically illustrating a steam generator mounted on a dryer according to the spirit of the present invention, and FIG. 4 is a side cross-sectional view taken along the line II ′ of FIG. 3.

3 and 4, the steam generator 100 mounted on the dryer according to the present invention is characterized in that the steam is generated by a tube heating method.

In detail, the steam generator is mounted to the case 150, the case 150, the steam generating tube 130 to move the water and steam therein, and the water flowing in the steam generating tube 130 The heater 140 is heated to change the water vapor to include.

In more detail, a water supply hose 110 is connected to one side of the steam generator 100 to be connected to the steam generating pipe 130 mounted inside the steam generator 100 to supply water. And, the other side of the steam generator 100 is mounted with a steam nozzle 120 connected to the other end of the steam generating tube so that the water vapor evaporated in the steam generating tube 130 is discharged. In addition, a steam discharging unit 121 for discharging steam is mounted at an end of the steam nozzle 120. In addition, the steam discharge unit 121 is mounted to the front or rear portion of the drying drum 15, so that steam is injected into the drying drum 15.

By the steam generator as described above, the water supplied through the water supply nozzle 110 is moved along the steam generating pipe 130 mounted long in the case 150. In this process, heat is generated in the heater 140 mounted on the outer circumferential surface of the steam generating tube 130 to heat the water flowing in the steam generating tube 130.

On the other hand, the tube heating type steam generating device having the configuration as described above does not completely change from water to steam since heat is transferred to the heater 140 in a state where water flows into the steam generating tube 130. Therefore, the discharged through the steam discharge port 121 is a mixture of water and steam.

5 is another embodiment of a steam generator mounted on a dryer according to the spirit of the present invention, Figure 6 is a cross-sectional view taken along the line II-II 'of FIG.

5 and 6, the steam generator 200 mounted on the dryer 10 according to the present invention includes a water chamber 210 in which water and steam are accommodated, and a water chamber 210 inside the water chamber 210. A heater 240 to be mounted, a water supply hose 220 connected to one side of the water chamber 210 to supply water, and a steam nozzle 230 connected to the other side of the water chamber 210 to discharge steam This includes.

In detail, the steam generator 200 having the above-described configuration stores a predetermined amount of water in the water chamber 210 having a predetermined size, and then uses a heating method for generating steam by heating the heater 240. It features. In more detail, the steam generator 200 using the heating method is steam and water is stored in the water chamber 210 as shown, and only steam is discharged through the steam nozzle 230, There is an advantage that evenly distributed into the drying drum 15.

Meanwhile, as mentioned above, the steam outlets mounted at the end portions of the steam nozzles 120 and 230 may be positioned at the front part or the rear part of the drying drum 15, so that steam is formed at the front or the front of the drying drum 15 during the drying process. It can be sprayed to the back.

Steam generators having the above configuration are mounted inside the dryer to allow steam to flow into the drying drum, thereby preventing the fabric from being wrinkled.

 7 is a flowchart showing a first embodiment of a steam drying process according to the spirit of the present invention.

Referring to FIG. 7, the laundry dried in the pleated state is subjected to a steam drying process to spread the wrinkles.

First, the user inserts the wrinkled dry laundry cloth into the drying drum (ST110). Then, the user sets the steam drying course mounted on the control panel 14 (ST111) and presses the operation button (ST112). Then, the steam is injected from the steam discharge port mounted on the inner front or rear of the drying drum, and the drying drum 15 is rotated (ST113). Here, the steam is injected into the drying drum 15 at the same time as the drum rotates, the sprayed steam is evenly infiltrated into the laundry. In addition, the humidity inside the drying drum formed by the steam injected into the drying drum 15 is detected by the humidity sensor 30 (ST114). The humidity value detected by the humidity sensor 30 is transferred to the microcomputer, and the transferred humidity value is compared with the humidity value set in the microcomputer (ST115).

On the other hand, if the humidity value detected by the humidity sensor 30 is less than the set humidity steam injection continues. Then, it is determined whether the detected humidity value is equal to the set humidity (ST116). If the detected humidity value is equal to the set humidity, the steam injection is stopped, the rotation of the drum is stopped (ST118) and the steam drying process is terminated. When the detected humidity value is greater than the set humidity, the heater 18 for heating the air introduced into the drying drum is operated, and at the same time, the air heated by the heater is introduced into the drying drum 15. The drying fan 19 is driven (ST117). That is, the drying process is performed until the humidity value inside the drying drum becomes a set value.

In addition, the humidity is again sensed by the humidity sensor 30, and a process of repeatedly determining whether the detected humidity value is the same as the humidity value set in the microcomputer is repeatedly performed.

By the process as described above, the user can be completely dried and wrinkled laundry through a steam drying process, so that the state of the cloth can be maintained to the extent that the wrinkles are easy to spread and easy to iron.

8 is a flowchart showing a second embodiment of a steam drying process according to the spirit of the present invention.

Referring to FIG. 8, in the steam drying process presented in this embodiment, the user inserts the laundry cloth into the drying drum 15 (ST120), sets the steam drying course (ST121), and then presses an operation button. (ST122) The step of allowing the steam to be injected and the drying drum 15 to rotate (ST123) is performed as in the first embodiment.

However, this embodiment is different from the first embodiment in that steam is injected into the drying drum 15 and the drying drum 15 is rotated and the drying fan 19 is driven together. In other words, in order for the steam injected from the steam discharge port mounted at the end of the steam nozzle to be evenly distributed in the drying drum and permeated to the cloth, air in the drying drum must form a turbulent flow while circulating. To this end, in addition to the method of causing the fabric to rise and fall by the rotation of the drying drum 15, by blowing air into the drying drum, it is possible to smooth the circulation of air.

Therefore, the drying fan 19 is rotated in the process of spraying steam so that the circulating air is introduced into the drying drum 15 so that the injected steam and the introduced circulating air meet and mix. Then, turbulence is generated inside the drying drum.

Here, the steam discharge part is mounted on the front surface of the drying drum 15, and is mounted on the rear of the drying drum 15, so that the steam flows in the forward and backward directions or in the reverse direction. Will vary in degree.

Meanwhile, the steam is injected into the drying drum 15 and the humidity inside the drying drum is sensed by the humidity sensor 30 in the process of driving the drying fan 19 (ST125), and the detected humidity value and setting The magnitude of the humidity value is compared (ST126). When the detected humidity value is smaller than the set humidity, steam is continuously injected, and when it is determined that the detected humidity value is the same as the set humidity (ST127), the step of steam injection and drum rotation is stopped (ST129). Of course, it is preferable to stop the driving of the drying fan at the step (ST129) of the steam injection and drum rotation is stopped.

On the contrary, when the detected humidity value is greater than the set humidity, the heater mounted inside the drying duct 17 is driven (ST128) to perform a drying process. In other words, when the heater 18 is operated while the drying fan 19 is driven, hot dry air is introduced into the drying drum. Then, moisture permeated into the laundry cloth inside the drying drum 15 is evaporated.

Here, the humidity inside the drying drum is continuously detected every minute while the heater is driven to perform the drying process, and at the same time, the humidity is compared with the set humidity value.

9 is a flowchart showing a third embodiment of a steam drying process according to the spirit of the present invention.

9, in the present embodiment, the drying process is performed until the laundry is completely dried again while spraying steam into the drying drum to unfold the laundry.

In detail, when the wet cloth is naturally dried inside the drum of the washing machine, the cloth becomes very crumpled. However, when the cloth is dried in a drying drum while the cloth is slightly damp, there is an advantage in that the cloth is dried with less wrinkles. . Therefore, when the completely dried and wrinkled laundry is put in the dryer slightly moistened by steam injection, the drying process is again reduced to significantly reduce the wrinkles on the cloth.

For the above purposes and effects, the user first puts the laundry cloth into the drying drum 15 (ST130), and sets the steam drying course (ST131). When the operation button is pressed (ST132), steam is injected and the drying drum 15 rotates (ST133) at the same time. During the process, the humidity inside the drying drum 15 is detected by the humidity sensor 30 every second (ST 134). Then, steam is injected until the detected humidity value is greater than or equal to the set humidity value.

On the other hand, when it is determined that the humidity value detected by the humidity sensor 30 is greater than the set humidity value, the steam injection is stopped (ST136). Then, the drying fan and the heater are driven (ST137) to perform a general drying process. Then, the humidity inside the drum is sensed (ST138) and the drying process is performed until the humidity becomes zero (139). Then, when the humidity is 0 and the laundry is completely dried, the operation of the drying fan, the heater, and the driving motor is stopped to terminate the steam drying process.

By the steam injection control method of the dryer according to the present invention constituting the configuration as described above, the user has an effect that the wrinkles are easily removed when the laundry is dried in the wrinkled state is excessively caught wrinkles. In addition, even when the amount of the wrinkled cloth is excessively large, there is an effect that can easily remove the wrinkles of the laundry through the steam drying process and change to a state capable of ironing.

Claims (10)

Laundry is introduced into the drying drum; Inputting a steam drying setting button; Steam is injected into the drying drum; Sensing humidity in the drying drum by a humidity sensor; Comparing the detected humidity value with the set humidity value by the controller; Controlling the steam injection amount by the controller; And Steam injection control method of the dryer comprising the step of ending the steam drying process. The method of claim 1, Steam is injected into the drying drum step of the steam injection control method of the dryer, characterized in that the drying drum is rotated at the same time. The method of claim 1, The controlling step of the steam injection amount is controlled so that steam is continuously injected when it is determined that the detected humidity value is smaller than the set humidity value. The method of claim 1, The step of controlling the steam injection amount is the steam injection control method of the dryer, characterized in that the steam injection and drum rotation is stopped when it is determined that the detected humidity value matches the set humidity value. The method of claim 1, In the controlling of the steam injection amount, the heating unit and the drying fan are controlled to drive when it is determined that the detected humidity value is greater than the set humidity value. The method of claim 1, The step of controlling the steam injection amount is the step of stopping steam injection when it is determined that the detected humidity value is greater than the set humidity value; Driving the drying fan and the heating unit until the humidity inside the drum becomes zero; and Steam injection control method of the dryer, characterized in that the step of ending the steam injection process as soon as the humidity inside the drum is zero. Laundry is introduced into the drying drum; Inputting a steam drying setting button; Rotating the drying drum at the same time as the steam is injected into the drying drum; Driving the drying fan; Sensing humidity in the drying drum by a humidity sensor; Comparing the detected humidity value with the set humidity value by the controller; Controlling the steam injection amount by the controller; And Steam injection control method of the dryer comprising the step of ending the steam drying process. The method of claim 7, wherein Steam is injected into the drying drum is steam injection control method of the dryer, characterized in that the spray until the detected humidity value is at least equal to or greater than the set humidity value. The method of claim 7, wherein The step of controlling the steam injection amount is the steam injection control method of the dryer, characterized in that the steam injection 돠 drum rotation and drying fan driving is stopped when it is determined that the detected humidity value is consistent with the set humidity value. The method of claim 7, wherein The controlling of the steam injection amount is the steam injection control method of the dryer, characterized in that the heating unit is driven when it is determined that the detected humidity value is greater than the set humidity value.

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