Clothes treatment device equipped with steam generating device and method for controlling the clothes treatment device

Abstract

The present invention relates to a clothing treatment device equipped with a steam generating device and a control method for the clothing treatment device, which comprises a cabinet, a storage section located inside the cabinet for storing an object, and a steam generating device located outside the storage section for the object and generating steam to be supplied to the storage section, wherein the steam generating device comprises a housing for storing steam water and forming a heating space, a cover covering the housing, a first heater for heating the steam water below the first water level, and a second heater for heating the steam water or steam heated by the first heater above the first water level.

Description

[Technical field]

[0001] The present invention relates to a clothing processing device having a steam generating device and a control method for the clothing processing device, and more particularly to a clothing processing device having a steam generating device that has heaters of different capacities and can superheat the generated steam by secondary heating to generate superheated steam, and a control method for the clothing processing device. [Background technology]

[0002] Generally, a clothing treatment device can refer to home appliances including a washing device that separates contaminants attached to clothing through the action of supplied wash water and detergent, a drying device that supplies hot air to wet clothing to dry the clothing, and a clothing management device that refreshes clothing using hot air or steam instead of washing with water.

[0003] Recently, some clothing treatment devices use steam generators to sterilize, remove odors, and remove wrinkles from clothing. Conventional steam generators have a structure that includes a storage space for storing water supplied from the outside and a heater installed inside the storage space so as to come into direct contact with the stored water.

[0004] Here, the steam generator is a device for generating steam and supplying it to objects such as clothes and tableware. The steam also functions as a heat source for heating the objects and a moisture source for supplying moisture to the objects. Therefore, such a function can be extended not only to laundry machines but also to various home appliances.

[0005] That is, the steam generator can be installed in a washing machine to generate high-temperature steam and provide steam during the washing process of laundry to enhance the washing effect. Also, the steam generator can be installed in a washing machine having a drying function, i.e., a clothing treatment device such as a drying device or a clothing management device, to provide steam to remove wrinkles and odors and refresh the clothes to make them feel like new.

[0006] The following description will be focused on a washing machine as a representative example of a clothing processing device, but the present invention can also be applied to other washing machines, drying machines, clothing management devices, and home appliances, as long as it is not exclusive to other devices and does not contradict.

[0007] Hereinafter, a conventional steam generating device for a laundry machine will be described with reference to the accompanying drawings.

[0008] FIG. 1 is a perspective view showing a simplified washing machine according to the prior art, FIG. 2 is a perspective view showing a steam generating device according to the prior art, and FIG. 3 is a cross-sectional view showing the internal structure of the steam generating device shown in FIG. 2.

[0009] As shown in FIG. 1, a washing machine equipped with a steam generator according to the prior art comprises a case 10 which forms the exterior, a cylindrical tub 12 which is supported horizontally within the case 10 and which stores wash water, a drum 14 which is rotatably mounted within the tub 12, and a steam generator 16 which supplies steam to the inside of the drum 14.

[0010] Here, the drum is a storage unit for storing objects, such as clothes, which are objects to be washed. The dryer stores objects such as clothes to be dried. Similarly, for refreshing, the dried clothes are stored in the object storage unit. Thus, the storage unit can be expanded to various configurations depending on the shape, the type of object, the function and shape of the home appliance, etc. That is, it can be expanded in various ways to a storage unit for storing tableware, a storage unit for storing clothes to be refreshed, an inner tub of a vertical washing device, etc.

[0011] The case 10 has an inlet 18 formed in the front thereof, which communicates with the inside of the drum 14 so that laundry can be put in and taken out, and a door 20 is provided in the front thereof so as to be able to pivot and open and close the inlet 18.

[0012] Meanwhile, a water supply valve 22 and a water supply hose 24 for supplying water to the steam generating device 16 are provided on one side of the case 10 .

[0013] In addition, a steam supply pipe 26 is connected to one side of the steam generator 16, which serves as a passage for introducing the steam generated by the steam generator 16 into the inside of the drum 14 and spraying it therein.

[0014] The steam generating device 16 will now be described in more detail with reference to FIGS.

[0015] The steam generating device 16 includes a lower case 28 forming a space for storing water, an upper case 30 coupled to an upper portion of the lower case 28, and a heater 32 for heating the water stored inside the steam generating device 16.

[0016] The upper case 28 is provided with a water supply port 34 through which water is supplied from the water supply hose 24, and a steam discharge port 36 through which steam generated in the steam generating device 30 is discharged to the steam supply pipe 26.

[0017] Meanwhile, the heater 32 is installed at the bottom of the lower case 28 in parallel with the bottom surface of the lower case 28. When water is supplied to the steam generating device 16, the heater 32 operates to heat the water while being completely immersed in the water.

[0018] The heater mounting structure will now be described in more detail.

[0019] 3, a rectangular heater 32 is inserted parallel to the bottom of the lower case through one side of the rectangular cases 28 and 30 that has a smaller area. Of course, the side into which the heater is inserted is sealed to prevent water leakage, and power is supplied to the heater through a terminal 35.

[0020] Meanwhile, a bracket is provided on the bottom surface of the lower case 28, and the heater is inserted and fixed inside the bracket. Thus, one side of the heater 32 is fixed to the bracket 33, and the other side is fixed to one side of the case.

[0021] A water level sensor 40 for detecting the level of water stored in the steam generating device 16 is provided on one side of the upper case 30, and a temperature sensor 42 for measuring the temperature of the water and steam heated by the heater 32 is provided in the center of the upper case 28.

[0022] The water level sensor 40 includes a high water level electrode 40c, a low water level electrode 40b, and a common electrode 40a to sense high and low water levels. Partitions 45 and 46 are provided to surround the water level sensor 40, and serve to stably maintain the sensed water level and reduce errors in detecting the water level.

[0023] The conventional steam generating device constructed as above operates as follows.

[0024] First, when the washing cycle of the washing machine is started, water flows into the steam generating device 16 through the water supply port 34 .

[0025] The water flowing into the steam generator 16 is heated by the heater 32 and converted into steam, and the steam flows into the drum 14 containing the laundry through the steam outlet 36 to wet and soften the laundry, thereby improving the efficiency of the washing.

[0026] Here, the steam discharged from the steam outlet 36 is high-temperature steam. Of course, if a discharge valve that opens and closes according to the steam pressure is provided before or after the steam outlet, the steam discharged from the steam outlet becomes high-temperature, high-pressure steam. In either case, however, the steam is supplied to the drum by its own pressure.

[0027] On the other hand, as described above, after the laundry has been wetted and softened, the operation of the steam generating device 16 is stopped, and the series of washing steps is carried out to complete the washing of the laundry.

[0028] In the above-mentioned conventional steam generating devices, the heater is operated after a predetermined amount of water is filled in the storage space, so the heater is operated when the storage space is completely filled with water and the stored water is boiled before steam can be supplied.

[0029] Therefore, the conventional steam generator not only takes a long time to generate steam, but also has a structure that makes it difficult to adjust the temperature of the steam discharged from the steam generator.

[0030] In addition, since conventional steam generators are equipped with only a heater of a fixed capacity for generating steam, it is difficult to adjust the amount of steam generated according to the amount of laundry, and when there is a large amount of laundry, it takes a long time to generate the appropriate amount of steam.

[0031] In addition, conventional steam generators use only steam generated by boiling water heated by a heater. This means that when the temperature of the steam is relatively low and the steam supply distance (i.e., the steam supply pipe) is long, the steam temperature decreases according to the steam supply distance, and steam cannot be supplied smoothly.

[0032] In addition, conventional steam generators have been forced to generate unsaturated steam due to structural limitations of generating steam by heating water. However, in recent years, the use of superheated steam at 100°C or higher has become popular in order to quickly heat laundry and wash water.

[0033] Furthermore, conventional steam generators are forced to generate unsaturated steam due to structural limitations of generating steam by heating water, and in recent years, the use of superheated steam at 100°C or higher has become popular in order to improve sterilization capabilities. Summary of the Invention [Problem to be solved by the invention]

[0034] The present invention has been made to solve the problems described above, and has an object to provide a clothing treatment device equipped with a steam generating device that adjusts the amount of steam generated according to the amount of steam required during clothing treatment, and selectively generates the required amount of steam, and a control method for the clothing treatment device.

[0035] The present invention has been made to solve the above-mentioned problems, and has an object to provide a steam generator and a clothing treatment device using the same, which can generate steam in a shorter time through pre-heating and heating processes as normal steam water is supplied.

[0036] In addition, the present invention has been made to solve the problems described above, and its object is to provide a clothing treatment device having a steam generating device that can supply small or large amounts of steam as normal steam water is supplied, and a control method for the clothing treatment device.

[0037] In addition, the present invention has been made to solve the problems described above, and its object is to provide a clothing treatment device equipped with a steam generating device capable of generating and supplying superheated steam at a temperature higher than normal steam temperature, and a control method for the clothing treatment device.

[0038] In addition, the present invention has been made to solve the problems described above, and has an object to provide a clothing treatment device having a steam generating device capable of generating superheated steam by secondary heating of the generated steam, and a control method for the clothing treatment device.

[0039] In addition, the present invention has been made to solve the problems described above, and has an object to provide a clothing treatment device and a control method for the clothing treatment device that are equipped with a steam generating device that generates superheated steam at a temperature higher than the normal steam temperature and can supply high-temperature steam even if the steam has to travel a long distance.

[0040] In addition, the present invention has been made to solve the problems described above, and has an object to provide a clothing treatment device having a steam generating device that can generate steam using a small amount of water, secondarily heat the generated steam, and generate superheated steam, and a control method for the clothing treatment device.

[0041] On the other hand, the objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0042] In order to achieve the above-mentioned object, one embodiment of the present invention provides a clothing treatment device including a steam generating device, which includes a cabinet, a storage section located inside the cabinet for storing an object, and a steam generating device located outside the storage section for the object and generating steam to be supplied to the storage section, wherein the steam generating device preferably includes (has; comprises; constructs; sets; encapsulates; contains; contains) a housing for storing steam water and forming a heating space; a cover covering the heating space; a first heater for pre-heating the steam water at a first water level or for heating the steam water to generate steam; and a second heater for heating steam water at a second water level higher than the first water level to generate steam, or for heating the steam generated at the first water level in the space between the first water level and the second water level to generate superheated steam.

[0043] Here, it is preferable that the steam generating device further includes a water level detection unit that detects the first water level and the second water level of the steam water supplied to the heating space.

[0044] On the other hand, it is preferable that the water level detection unit includes a first water level electrode for detecting the first water level, and a second water level electrode for detecting the second water level.

[0045] It is also preferable that the first heater preheats and heats the steam water at the first water level in accordance with the water level detection by the first water level electrode, and the second heater heats the steam water at the second water level in accordance with the water level detection by the second water level electrode to generate steam.

[0046] Here, it is preferable that the steam generating device further includes a temperature sensor that detects the temperature inside the heating space to detect the generation of steam, and the second heater heats the steam above the first water level in accordance with the steam detection by the temperature sensor to generate superheated steam.

[0047] Meanwhile, it is preferable that the steam generating device further includes a lower partition forming a passageway for the steam generated at the first water level; and an upper partition located above the second heater and forming the passageway for the steam together with the lower partition.

[0048] Here, it is preferable that the second heater is positioned between the lower partition wall and the upper partition wall, and heats the steam moving between the lower partition wall and the upper partition wall to generate superheated steam.

[0049] In addition, it is preferable that the lower partition and the upper partition have a plurality (a large number) of through holes formed therein so as to diffuse the steam and the superheated steam.

[0050] In addition, it is preferable that the lower partition is provided in the housing so that one side is open, and the upper partition is provided in the housing so that the other side is open, forming a movement path for the steam generated at the first water level.

[0051] Meanwhile, in order to achieve the above-mentioned object, a clothing treatment device including a steam generating device according to one embodiment of the present invention includes a cabinet, a storage section located inside the cabinet for storing an object, and a steam generating device located outside the storage section for the object and generating steam to be supplied to the storage section, and it is preferable that the steam generating device includes a housing for storing steam water and forming a heating space; a cover for covering the heating space; a water level detection section for detecting a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater for heating the steam water below the first water level; and a second heater for heating the steam generated by the first heater above the first water level to generate superheated steam, or for heating the steam water supplied up to the second water level to generate steam.

[0052] Here, it is preferable that the water level detection unit includes a first water level electrode for detecting the first water level, and a second water level electrode for detecting the second water level.

[0053] It is also preferable that the first heater preheats and heats the steam water at the first water level in accordance with the water level detection by the first water level electrode, and the second heater heats the steam water at the second water level in accordance with the water level detection by the second water level electrode to generate steam.

[0054] In addition, it is preferable that the steam generating device further includes a temperature sensor that detects the temperature inside the heating space to detect the generation of steam, and the second heater heats the steam above the first water level in accordance with the steam detection by the temperature sensor to generate superheated steam.

[0055] In addition, it is preferable that the steam generating device further includes a lower partition wall that forms a movement path of the steam generated at the first water level; and an upper partition wall that is located above the second heater and forms the movement path of the steam together with the lower partition wall.

[0056] In addition, it is preferable that the second heater is positioned between the lower partition wall and the upper partition wall, and heats the steam moving between the lower partition wall and the upper partition wall to generate superheated steam.

[0057] In addition, it is preferable that the lower and upper partition walls have a number of through holes formed therein to diffuse the steam and the superheated steam.

[0058] In addition, it is preferable that the lower partition is provided in the housing with one side open, and the upper partition is provided in the housing with the other side open, forming a passageway for the steam generated at the first water level.

[0059] In addition, it is preferable that the second heater heats steam flowing between the lower partition and the upper partition to generate superheated steam.

[0060] In addition, to achieve the above-mentioned object, a clothing treatment device using a steam generating device according to one embodiment of the present invention is a clothing treatment device including a cabinet, a storage section located inside the cabinet for storing an object, and a steam generating device located outside the storage section for the object and generating steam to be supplied to the storage section, wherein the steam generating device comprises a box-shaped housing for storing supplied steam water; a cover covering the housing; a first heater located at the bottom of the housing; a lower partition located on the top of the first heater; a second heater located on the top of the lower partition; and an upper partition located on the top of the second heater; and it is preferable that the steam generated by heating by the first heater moves to the space between the lower partition and the upper partition and is converted into superheated steam by the second heater.

[0061] In addition, it is preferable that the lower partition guides the steam generated by the first heater to move between the lower partition and the upper partition, and the lower partition and the upper partition form a steam heating space heated by the second heater.

[0062] In addition, it is preferable that the lower and upper partition walls have a number of through holes formed therein to diffuse the steam and the superheated steam.

[0063] In addition, it is preferable that the lower partition is provided in the housing with one side open, and the upper partition is provided in the housing with the other side open, forming a passageway for the steam generated at the first water level.

[0064] In addition, to achieve the above-mentioned object, a clothing treatment device using a steam generating device according to one embodiment of the present invention includes a cabinet, a storage section located inside the cabinet for storing an object, and a steam generating device located outside the storage section for the object and generating steam to be supplied to the storage section, wherein the steam generating device includes a housing for storing steam water and forming a heating space; a cover for covering the heating space; a water level detection section for detecting a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below the first water level; a second heater located between the first water level and the second water level; a lower partition located between the first water level and the second heater; and an upper partition located above the second water level and forming a steam flow path with the lower partition; and it is preferable that when the steam water is at the first water level, the second heater heats the steam generated by the first heater to generate superheated steam, and when the steam water is at the second water level, the second heater heats the steam water generated by the first heater to generate superheated steam, and when the steam water is at the second water level, the second heater heats the steam water like the first heater to generate steam.

[0065] It is also preferable that the water level detection unit includes a first water level electrode that detects the first water level and a second water level electrode that detects the second water level, and the first heater preheats or heats the steam water of the first water level in accordance with the water level detection by the first water level electrode.

[0066] It is preferable that the steam generating device further includes a temperature sensor that detects the temperature inside the heating space to detect the generation of steam, and the second heater heats the steam above the first water level in accordance with the steam detection by the temperature sensor to generate superheated steam.

[0067] Meanwhile, to achieve the above-mentioned object, a control method for a clothing treatment device using a steam generating device according to one embodiment of the present invention, which includes a steam generating device having a water level detection unit that detects a first water level of steam water supplied to a heating space and a second water level higher than the first water level, a first heater located below the first water level, and a second heater located between the first water level and the second water level, preferably includes a water supplying step of supplying steam water to the steam generating device; a first water level detecting step of detecting the first water level of the steam water supplied; a preheating step of preheating the steam water of the first water level by the first heater; a second water level detecting step of detecting a second water level higher than the first water level; and a heating step of heating the steam water of the second water level by the second heater in accordance with the second water level detection to generate steam.

[0068] Preferably, the method further includes a second water level maintenance detection step of determining whether the water level of the steam water is maintained at a second water level after the heating step.

[0069] In addition, the method may further include the step of supplying additional steam water when the water level drops below the second water level in the second water level maintenance detecting step.

[0070] Meanwhile, to achieve the above-mentioned object, a control method for a clothing treatment device using a steam generating device according to one embodiment of the present invention includes a water level detection unit that detects a first water level of steam water supplied to a heating space and a second water level higher than the first water level, a first heater located below the first water level, and a second heater located between the first water level and the second water level, and the control method for a clothing treatment device including a steam generating device preferably includes a water supplying step of supplying steam water to the steam generating device; a first water level detection step of detecting the first water level of the steam water supplied; a heating step of heating the steam water at the first water level by the first heater to generate steam; and a superheated steam generating step of heating the steam generated from the first water level by the second heater to generate superheated steam.

[0071] Preferably, the method further comprises a steam detection step of measuring a temperature of the heating space and detecting generation of the steam after the heating step.

[0072] Meanwhile, the method may further include a first water level maintenance detection step of determining whether the water level of the steam water is maintained at a first water level after the heating step.

[0073] In addition, the method may further include the step of supplying additional steam water when the water level drops below the second water level in the second water level maintenance detecting step. Effect of the Invention

[0074] The clothing treatment device including a steam generating device and the control method of the clothing treatment device according to the present invention have the advantage that the amount of steam generated can be selectively generated by adjusting the amount of steam generated according to the amount of steam required during clothing treatment.

[0075] In addition, the clothing treatment device having a steam generating device and the control method of the clothing treatment device according to the present invention have the advantage that as normal steam water is supplied, steam can be generated in a shorter time through the pre-heating and heating processes.

[0076] In addition, the clothes treating apparatus having the steam generating device and the control method of the clothes treating apparatus according to the present invention have the effect of supplying a small or large amount of steam as normal steam water is supplied.

[0077] In addition, the clothing treatment device including the steam generating device and the control method of the clothing treatment device according to the present invention have the advantage that they can generate and supply superheated steam at a temperature higher than that of normal steam.

[0078] In addition, the clothing treatment device including the steam generating device and the control method for the clothing treatment device according to the present invention have the advantage that superheated steam can be generated by secondarily heating the generated steam.

[0079] In addition, the clothing treatment device equipped with a steam generating device and the control method of the clothing treatment device according to the present invention have the effect of generating superheated steam at a temperature higher than the normal steam temperature, and supplying high-temperature steam even if the steam has to travel a long distance.

[0080] In addition, the clothing treatment device including the steam generating device and the control method of the clothing treatment device according to the present invention have the advantage that steam can be generated using a small amount of water, and the generated steam can be secondarily heated to generate superheated steam.

[0081] On the other hand, the effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims. [Brief description of the drawings]

[0082] [Figure 1] FIG. 1 is a perspective view showing a washing machine according to a conventional technique; [Diagram 2] FIG. 1 is a perspective view showing a steam generating device according to the prior art. [Diagram 3] 3 is a cross-sectional view showing the internal structure of the steam generating device shown in FIG. 2. [Figure 4]1 is a perspective view showing a steam generating device according to an embodiment of the present invention; [Diagram 5] 1 is an exploded perspective view showing a steam generating device according to an embodiment of the present invention; [Figure 6] 1 is a cross-sectional view showing an internal structure of a steam generating device according to an embodiment of the present invention. [Figure 7] 4 is a flowchart showing an operating process of a clothing treatment device having a steam generating device according to an embodiment of the present invention. [Figure 8] 4 is a flowchart showing a steam generation process of the steam generator according to the embodiment of the present invention. [Figure 9] 4 is a flowchart illustrating a process of generating a large amount of steam in a steam generator according to an embodiment of the present invention. [Figure 10] 4 is a flowchart showing a process of generating superheated steam in a steam generator according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0083] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a clothing treatment device having a steam generating device and a method for controlling the clothing treatment device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0084] In the description of the present invention, the names of each component defined are defined in consideration of their functions in the present invention. Therefore, they should not be understood as limiting the technical components of the present invention. In addition, each name defined for each component may be called by other names in the art.

[0085] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a steam generator and a clothing treatment device using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0086] FIG. 4 is a perspective view showing a steam generating device according to an embodiment of the present invention, FIG. 5 is an exploded perspective view showing a steam generating device according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view showing the internal structure of the steam generating device according to an embodiment of the present invention.

[0087] As shown in Figures 4 and 5, a steam generating device 100 according to an embodiment of the present invention includes a box-shaped housing 110 that forms a storage space in which supplied steam water is temporarily stored, a first heater 130 that is fastened to the housing 110 and heats the steam water stored in the housing 110 to generate steam (unsaturated steam or wet steam, hereinafter referred to as "steam"); ​​a second heater 140 that is fastened to the housing 110 and spaced apart above the first heater 130 and heats the steam water stored in the housing 110 or the steam generated by the first heater 130 to generate superheated steam (superheated steam, hereinafter referred to as "superheated steam"); ​​a cover 120 that covers the open side of the housing 110; a water level detection unit 150 that is provided on the cover 120 and determines the water level of the steam water stored in the housing 110; and a temperature sensor 160 that detects the temperature of the steam generated by the first heater 130 and the second heater 140.

[0088] Meanwhile, the steam generated by the first heater 130 is one of the most common forms of steam and usually contains moisture from unvaporized water molecules. It usually contains 3% to 5% moisture. This steam has a temperature of about 100°C and is used for heating laundry or wash water and for sterilization at relatively low temperatures.

[0089] In addition, the superheated steam generated by the second heater 140 is generated when the evaporation rate and liquefaction rate are the same at a higher temperature (at least 100°C or higher) than steam. Such superheated steam can heat quickly and uniformly due to a high heat transfer coefficient due to the latent heat of the superheated steam, and is used for quick heating of laundry or wash water and relatively high temperature sterilization.

[0090] Here, a lower partition wall 180 and an upper partition wall 190 are further formed at the lower and upper parts of the second heater 140 at a predetermined distance from the second heater 140 to form a space in which steam generated from the first heater 130 can temporarily stay.

[0091] The housing 110 includes a base 111 that forms a bottom surface of a storage space, and side walls 112a, 112b, 112c, and 112d that form side surfaces. The base 111 and the side walls 112a, 112b, 112c, and 112d define an internal storage space.

[0092] The housing 110 is formed in a rectangular shape. That is, the housing 110 is composed of a rectangular base 111 and side walls. Since the housing 110 is rectangular, the length direction can be defined as being longer than the width direction. Therefore, the side walls 112b and 112d in the length direction and the side walls 112a and 112c in the width direction extend upward from the base 111 to form a box shape with an open top.

[0093] Meanwhile, a storage space for storing water is formed inside through the base 111 and the side walls 112a, 112b, 112c, and 112d. Of course, the housing 110 can also store steam at the top or the entirety as the water is heated. Thus, the housing 110 forms a heating space for heating the steam water.

[0094] Here, among the side walls 112a, 112b, 112c, and 112d, the side wall 112c formed at the rear is formed with a lower heater mounting hole 113b and an upper heater mounting hole 113a for fastening the first heater 130 and the second heater 140.

[0095] Meanwhile, the first heater 130 includes a first heater bracket 132 fixed to the lower heater mounting hole 113b, a first heater coil 131 extending from the first heater bracket 132 to the inside of the housing 110, and a first heater terminal 143 provided on the outside of the housing 110 from the first heater bracket 132 and connected to a power source.

[0096] In addition, the second heater 140 includes a second heater bracket 142 fixed to the upper heater mounting portion 113a, a second heater coil 141 extending from the second heater bracket 142 to the inside of the housing 110, and a second heater terminal 143 provided on the outside of the housing 110 from the second heater bracket 142 and to which a power source is connected.

[0097] Here, the first heater 130 and the second heater 140 are inserted into the lower heater mounting hole 113b and the upper heater mounting hole 113a of the housing 110, respectively, and fastened and fixed by a separate manufacturing process. Alternatively, when manufacturing the housing 110, the housing 110 may be injection molded from a heat-resistant synthetic resin material, and the first heater bracket 132 of the first heater 130 and the second heater bracket 142 of the second heater 140 may be formed by insert injection into the lower heater mounting hole 113b and the upper heater mounting hole 113a.

[0098] Meanwhile, it is preferable that the first heater 130 and the second heater 140 have different outputs. Specifically, the second heater 140 is provided to have an output relatively smaller than that of the first heater 130. For example, assuming that the first heater 130 has an output of 1000 W, the second heater 140 is provided to have an output of 600 W. Generally, in the case of a clothing treatment device, the maximum current when the clothing treatment device operates is limited, and if this is exceeded, it becomes unreasonable for the current load in the home. Therefore, the output of the first heater 130 and the second heater 140 can be changed in consideration of the current load in the home.

[0099] Also, the first heater 130 may be configured to always heat steam water, and the second heater 140 may be configured to selectively heat steam water or steam. Therefore, the first heater coil 131 of the first heater 130 and the second heater coil 141 of the second heater 140 may be made of different materials so as to heat different objects.

[0100] Meanwhile, in the case of the first heater 130 and the second heater 140, each is operated simultaneously or individually, and the second heater 140 is controlled to generate superheated steam by reheating the wash water heated by the first heater 130 or reheating the steam generated from the steam water heated by the first heater 130. The control process of the first heater 130 and the second heater 140 will be described in detail in the control of the steam generating device 100.

[0101] Meanwhile, upper support ribs (not shown) and lower support ribs (not shown) for supporting the lower partition 180 and the upper partition 190 are protruded from the inner peripheral surfaces of the side walls 112a, 112b, 112c, and 112d of the housing 110 at a predetermined interval in the vertical direction.

[0102] Here, the upper support rib and the lower support rib support the upper partition wall 190 and the lower partition wall 180, respectively. A first heater coil 131 of the first heater 130 extends and is located below the lower partition wall 180 supported by the lower support rib. Also, a second heater coil 141 of the second heater 140 extends and is located below the upper partition wall 190 supported by the upper support rib. That is, the second heater coil 141 is formed to extend in the space between the lower partition wall 180 and the upper partition wall 190.

[0103] Meanwhile, the heating space of the housing 110 is divided into different spaces according to the object to be heated in the heating space. That is, in the present invention, as described above, the first heater 130 for heating the steam water and the second heater 140 for heating the steam generated from the steam water heated by the first heater 130 are provided.

[0104] Here, the first heater 130 is located at the bottom of the heating space and heats the steam water stored in the heating space, and the second heater 140 heats the steam generated from the top of the steam water stored in the heating space.

[0105] Therefore, the space in which the steam water is heated by the first heater 130 can be classified as a steam water heating space, and the space in which the steam is heated by the second heater 140 can be classified as a steam heating space.

[0106] Meanwhile, a number of through holes 181, 191 for passing steam water and steam are formed in the lower partition wall 180 and the upper partition wall 190. Here, the through holes formed in the lower partition wall 180 are provided to allow the steam or steam water generated from the first heater 130 to pass through. Also, the number of through holes 191 formed in the upper partition wall 190 are provided to allow the steam water or steam heated by the second heater 140 to pass through.

[0107] In addition, the lower partition wall 180 is located between the first heater 130 and the second heater 140. The lower partition wall 180 and the upper partition wall 190 serve to partition a heating space for the steam water or steam heated by the first heater 130 and the second heater 140.

[0108] Meanwhile, the lower partition 180 and the upper partition 190 are provided to open one side and the other side of the heating space, respectively. That is, the lower partition 180 is formed to be spaced apart from the side wall 112a of the housing by a predetermined distance, and the upper partition 190 is formed to be spaced apart from the side wall 112c of the housing by a predetermined distance.

[0109] Therefore, steam generated from the steam water heated by the first heater 130 moves between the lower partition wall 180 and the upper partition wall 190 through the space between the lower partition wall and the side wall 112a. The steam that moves between the lower partition wall 180 and the upper partition wall 190 is heated by the second heater 140 to become superheated steam.

[0110] Here, the multiple through holes 181, 191 formed in the lower partition 180 and the upper partition 190 allow not only the movement of steam water but also the steam generated by the first heater 130 to be diffused into the heating space through the multiple through holes 181, 191.

[0111] That is, the steam water heated by the first heater 130 is heated by the first heater 130 at a water level located below the lower partition 180 to generate steam, and the generated steam passes through the through holes 181 of the lower partition 180, diffuses over the lower partition 180, and diffuses into the space between the lower partition 180 and the upper partition 190.

[0112] The steam that has moved to the space between the lower partition 180 and the upper partition 190 is heated again by the second heater 140 and converted into superheated steam. The superheated steam heated in the lower partition 180 and the upper partition 190 is diffused while passing through a large number of through holes 191 formed in the upper partition 190, and is discharged from the steam discharge port 120b formed in the cover 120.

[0113] Meanwhile, a first heater fixing bracket 115 for supporting the first heater coil 131 of the first heater 130 is provided on the upper surface of the base 111 of the housing 110. The housing 110 can be manufactured by injection molding using a heat-resistant synthetic resin, but if the first heater 130 located at the lower part of the heating space of the housing 110 comes into direct contact with the first heater 130, it may cause deformation of the housing 110. Therefore, the first heater fixing bracket 115 for supporting the first heater coil 131 of the first heater 130 is provided so that the base 111 of the housing 110 and the first heater 130 maintain a predetermined distance from each other.

[0114] The cover 120 is formed to cover the upper open surface of the housing 110, and is injection molded from the same heat-resistant synthetic resin material as the housing 110. The outer periphery of the lower surface of the cover 120 is formed into a shape corresponding to the upper open surface of the housing 110, and is integrally fastened to the housing 110 by a bonding method such as ultrasonic welding.

[0115] Meanwhile, a steam water inlet 120a is formed on one side of the cover 120 to supply steam water to the heating space of the housing 110. Steam water is supplied to the steam water inlet 120a through a water supply unit (not shown) of the clothing treatment device. In addition, a separate control valve or a pressure reducing valve may be provided in a flow path connecting the water supply unit and the steam water inlet 120a, and a flow meter may be further provided to control the supply of steam water and detect the flow rate of steam water supplied to the housing 110.

[0116] Also, a steam outlet 120b is formed on the other side of the cover 120 to supply steam generated in the heating space of the housing 110. The steam outlet 120b supplies steam to a storage unit such as a tub (not shown) or drum (not shown) in which clothes are stored, via a hose (not shown) that forms a steam flow path.

[0117] Meanwhile, the top surface of the cover 120 is provided with a water level detection unit 150, a temperature sensor 160, and a common electrode 170, which penetrate the cover 120 and extend into the heating space of the housing 110. For this purpose, the inside of the cover 120 is provided with a water level sensor mounting portion 121 to which the water level detection unit 150 is attached, a temperature sensor mounting portion 122 to which the temperature sensor 160 is attached, and a common electrode mounting portion 123 to which the common electrode 170 is attached.

[0118] Here, the water level sensor attachment portion 121 is formed with a through hole 121a into which the water level detection portion 150 is inserted, and a water level sensor accommodating portion 121b that is adjacent to the through hole 121a in the lower portion of the cover 120 and extends a predetermined distance toward the heating space side. Here, the water level sensor accommodating portion 121b is intended to prevent malfunction of the water level detection portion by blocking the flow of steam water adjacent to each of electrodes 153a, 153b, and 153c of the water level detection portion, which will be described later.

[0119] Here, openings are formed on both sides of the water level sensor receiving part 121b. The openings 121c are formed in a structure that allows steam water to flow into the water level sensor receiving part 121b or allows air inside the water level sensor receiving part 121b to move to the outside.

[0120] Meanwhile, the water level detection unit 150 includes a receptacle housing 151 provided outside the water level sensor mounting portion 121 of the cover 120, a number of electrodes 153a, 153b, 153c extending to the lower portion of the receptacle housing 151, and a number of terminals 152a, 152b, 152c formed on the upper portion of the receptacle housing 151 and to which each electrode is connected to a control unit (not shown).

[0121] Here, the number of electrodes 153a, 153b, 153c is not limited to this and can be determined according to the water level to be measured, and they are installed at an appropriate height from the bottom surface of the housing 110 so as to detect the water level of the steam water stored inside the steam generating device 100. In the present invention, three electrodes are included: a low water level electrode 153a, a first water level electrode 153b, and a second water level electrode 153c.

[0122] Meanwhile, the low water level electrode 153a, the first water level electrode 153b, and the second water level electrode 153c are provided to detect the water level by energizing the common electrode 170. Therefore, the common electrode extends into the heating space by a length equal to or longer than the length of the low water level electrode 153a, which detects the lowest water level among the low water level electrode 153a, the first water level electrode 153b, and the second water level electrode 153c.

[0123] Here, the low water level electrode 153a is an electrode for detecting the minimum water level for stable operation of the first heater 130 located at the bottom of the housing 110. The low water level electrode 153a extends to the bottom of the heating space in correspondence with the safe operating water level of the first heater 130.

[0124] The first water level electrode 153b detects the water level of the steam water heated by the first heater 130. The first water level electrode 153b is located relatively higher than the low water level electrode 153a, and the function of the first water level electrode 153b can be performed by the function of the low water level electrode 153a, if necessary.

[0125] Also, the first water level electrode 153b is configured to detect the water level at a position equal to or relatively lower than the lower partition wall 180. If the first water level electrode 153b detects a water level higher than the lower partition wall 180, the water level of the steam water heated by the first heater 130 generates steam at a position higher than the lower partition wall 180, and the steam generated by the first heater 130 cannot pass through the through-holes 181 of the lower partition wall 180, which may reduce the diffusibility of the steam. Here, if the diffusibility of the steam is not taken into consideration, it does not matter if the position of the first water level electrode 153b is located above the lower partition wall 180.

[0126] On the other hand, the second water level electrode 153c detects the water level when the steam water is heated by the second heater 140. Therefore, the second water level electrode 153c extends from the cover 120 into the heating space so as to detect a water level higher than the second heater 140.

[0127] That is, in the case of the second heater 140, steam is reheated or steam water is heated to generate steam depending on the supply water level of the steam water. For example, when generating saturated steam, the steam generated by heating the steam water of the first heater 130 is reheated according to the water level detection of the first water level electrode 153b.

[0128] Meanwhile, the first heater 130 and the second heater 140 heat the steam water simultaneously according to the water level detection by the second water level electrode 153c, so that the steam water can be generated more quickly or a larger amount of steam can be generated.

[0129] The temperature sensor 160 is provided in the temperature sensor attachment portion 122 of the cover 120, and detects the temperature inside the heating space. This temperature sensor 160 detects the temperature of the steam generated in the heating space, and detects the generation of steam and superheated steam.

[0130] Here, the temperature sensor 160 further includes a temperature sensor bracket 161 for fastening to the temperature sensor mounting portion 122 of the cover. Thus, the temperature sensor 160 is fastened to the temperature sensor mounting portion 122 of the cover 120 by the temperature sensor bracket 161, and extends into the inside of the heating space through the cover 120. Since this temperature sensor 160 needs to detect the temperature of steam inside the heating space, it is preferable that it is located relatively high up in the heating space.

[0131] The common electrode 170 is for conducting electricity through steam water to the low water level electrode 153a, the first water level electrode 153b, and the second water level electrode 153c of the water level detection unit 150. The common electrode is equal to the low water level electrode or extends further than the low water level electrode and extends into the heating space.

[0132] Here, the common electrode 170 further includes a common electrode bracket 171 for fastening to the common electrode mounting portion 123 of the cover. Thus, the common electrode 170 is fastened to the common electrode mounting portion 123 of the cover 120 by the common electrode bracket 171, and extends through the cover 120 into the heating space.

[0133] Hereinafter, the operation of the clothes treatment device according to one embodiment of the present invention will be described in detail by way of example. Each element referred to below can be understood with reference to the above description and drawings.

[0134] FIG. 7 is a flowchart showing an operation process of a clothing treatment device having a steam generating device according to an embodiment of the present invention.

[0135] In the present invention, the operation of a clothes treatment device such as a laundry machine will be described as an example. However, the present invention can be applied to other clothes treatment devices that use a steam generating device. For example, the present invention is considered to be within the scope of the present invention when applied to a drying device that dries items to be washed using steam, or a clothes management device that manages clothes using steam.

[0136] A typical washing machine performs a washing process, a rinsing process, a spin-drying process, and a drying process, which are the same as those of a typical process, and therefore will not be described in detail.

[0137] First, as the operation of the clothing treatment device begins, laundry is placed into a storage compartment for objects stored in a storage compartment such as a drum, and when preparation for washing is complete, one of multiple washing courses is selected and the washing course is started.

[0138] After the start of the washing course, the amount of laundry to be washed, i.e., the amount of fabric, is detected (S110). Based on the amount of fabric, water for washing is supplied to the tub or drum (S120). Fabric wetting is performed simultaneously with the water supply or for a predetermined time after the water supply.

[0139] After the wetting process is completed, the washing process (S150) or the main washing process is performed. After the main washing process, the water is drained and the washing process is completed. After the washing process is completed, the rinsing process (S160) and the spin-drying process (S170) are performed in sequence, and the washing course is completed.

[0140] The washing course is, for example, a general washing course in which washing is performed using only washing water, and a steam step (S200) may be further performed during the progress of the washing course.

[0141] More specifically, the steam step (S200) is performed between the water supply step (S120) and the washing step (S150). That is, the steam step (S200) may be performed during the process of wetting the fabric. In this case, the steam step (S200) is performed before the washing step (S200) which is performed in a state where no more washing water is added.

[0142] The steam step (S200) is a course for washing using wash water and steam. Therefore, after the water supply step (S120), steam water is supplied to the steam generator 100. Meanwhile, in the steam step (S200), the amount and temperature of steam supplied from the steam generator can be changed according to the amount or type of laundry.

[0143] As an example, a steam step (S200) is performed in which steam is supplied to the inside of the drum and the steam is supplied until the temperature inside the drum reaches a set temperature. Of course, the steam step (S200) may be performed for a set time. The steam generating device 100 can control the level of steam water supplied to the steam generating device 100 and the first heater 130 and the second heater 140 according to the set temperature, and control the amount of steam generated from the steam generating device 100.

[0144] As another example, a steam step (S200) is performed in which steam is supplied into the drum, laundry placed inside the drum is heated to a predetermined temperature or higher, and the laundry is sterilized. At this time, the amount of steam supplied can be increased or decreased according to the amount of laundry. The steam generating device 100 can control the level of steam water supplied to the steam generating device 100 and the first heater 130 and the second heater 140 according to the detected amount of laundry, thereby controlling the amount of steam generated from the steam generating device 100.

[0145] The steam generating device 100 as described above can repeatedly supply steam water and control the first heater 130 and the second heater 140 in any case of supplying steam.

[0146] Hereinafter, the operation of the steam generating device 100 in the above-mentioned clothing treatment device will be described in detail. The operation of the steam generating device 100 of the present invention is divided according to the amount and temperature of steam supplied, and each steam supply process will be described separately.

[0147] First, a general steam generation process of the clothes treating apparatus according to the present invention will be described below. Fig. 8 is a flow chart showing a steam generation process of the steam generating apparatus according to an embodiment of the present invention.

[0148] As shown in the figure, in the clothing treatment device of the present invention, steam water is supplied to the steam generating device 100 to supply steam (S130). As the steam water is supplied, the water level detection unit 150 determines the water level of the steam water supplied to the heating space via the low water level electrode 153a and the first water level electrode 153b (S141a).

[0149] Here, when the water level of the steam water supplied to the heating space reaches the first water level as detected by the first water level electrode 153b of the water level detection unit 150, the supply of the steam water is stopped (S142a). Thereafter, as the steam water reaches the first water level, power is supplied to the first heater 130, and the steam water that has reached the first water level is heated by the heating of the first heater coil 131, generating steam (S143a).

[0150] On the other hand, when the water level of the steam water supplied to the heating space is detected as a low water level by the low water level electrode, the first heater 130 starts to operate and preheats the steam water before the first water level is reached. In this case, steam can be generated earlier than when the steam water is heated to generate steam after the first water level is reached.

[0151] Thereafter, the water level detection unit 150 detects a change in the water level of the steam water due to the generation of steam by the first heater 130 (S144a). If the first water level electrode 153b of the water level detection unit 150 detects that the water level is lower than the first water level, the water level detection unit 150 supplies additional steam water to replenish the steam water (S145a).

[0152] On the other hand, when power is applied to the first heater 130 and steam is generated, it is determined whether a set time for steam generation has elapsed (146a), and if the set time has not elapsed, the detection of the first water level (S144a) and the supply of additional steam water (S145a) are repeated.

[0153] Here, the steam generated through the above-mentioned process is supplied to the storage section through the steam outlet 120b provided in the cover 120, and as the set time for steam generation elapses, the operation of the first heater 130 is stopped, and the steam process is terminated (S147a).

[0154] Meanwhile, in the case of the clothes treating apparatus of the present invention, a large amount of steam may be required depending on the amount of laundry. Here, a process for supplying a large amount of steam will be described in detail. Figure 9 is a flow chart showing a process for generating a large amount of steam by the steam generating apparatus according to an embodiment of the present invention.

[0155] As shown in the figure, in the clothing treatment device of the present invention, steam water is supplied to the steam generating device 100 in order to supply steam (S130). As the steam water is supplied, the water level detection unit 150 determines the level of the steam water supplied to the heating space via the low water level electrode 153a and the first water level electrode 153b (S141b). Here, when the level of the steam water supplied to the heating space reaches the first water level as detected by the first water level electrode 153b of the water level detection unit 150, the supply of steam water is stopped.

[0156] Thereafter, as the steam water reaches the first water level, power is supplied to the first heater 130, and the steam water that has reached the first water level is preheated by heating the first heater coil 131 (S142a). That is, in the case of steam water that has reached the first water level, this is an intermediate water level before reaching the second water level, and by supplying power to the first heater 130 before supplying water up to the second water level, the steam water that has been supplied up to the first water level is preheated in advance, and the heating time of the steam water heated by the second heater 140 at the second water level can be shortened.

[0157] Meanwhile, the water level detection unit 150 judges whether the water level of the steam water that is supplied exceeds the first water level and reaches the second water level (S143b). When the water level of the steam water reaches the second water level, power is supplied to the second heater 140, and the steam water that has reached the second water level is heated by the second heater coil 141 to generate steam.

[0158] Here, the first heater coil of the first heater heats the steam water below the first water level, and the second heater coil of the second heater heats the steam water between the first water level and the second water level, quickly heating the entire steam water inside the heating space and generating steam.

[0159] In addition, in the case of the first heater, the steam water is preheated by supplying water up to the first water level, and in the case of the second heater, the steam water is heated after being supplied up to the second water level. Therefore, after the steam water is completely supplied up to the second water level, the steam water can be preheated and heated earlier than the first and second heaters are activated, and steam can be generated.

[0160] Thereafter, the water level detection unit 150 detects a change in the water level of the steam water due to the generation of steam by the first heater 130 (S145b). If the second water level electrode 153c of the water level detection unit 150 detects that the water level is lower than the second water level, the water level detection unit 150 supplies additional steam water to replenish the steam water (S146b).

[0161] On the other hand, when power is applied to the second heater 140 and steam is generated, it is determined whether a set time for steam generation has elapsed (147b), and if the set time has not elapsed, the second water level detection (S145b) and additional steam water supply (S146b) are repeated.

[0162] Here, the steam generated through the above-mentioned process is supplied to the storage section through the steam outlet (120b) provided in the cover 120, and as the set time for steam generation elapses, the operation of the first heater 130 and the second heater 140 is stopped, and the steam process is terminated (S148b).

[0163] Meanwhile, in the case of the laundry treatment device of the present invention, relatively high temperature steam may be required as the washing cycle progresses. Here, the process for supplying high temperature steam will be described in detail. Figure 10 is a flow chart showing the process of generating superheated steam in the steam generating device according to one embodiment of the present invention.

[0164] As shown in the figure, in the clothing treatment device of the present invention, steam water is supplied to the steam generating device 100 to supply steam (S130). As the steam water is supplied, the water level detection unit 150 determines the level of the steam water supplied to the heating space via the low water level electrode 153a and the first water level electrode 153b (S141c). Here, when the level of the steam water supplied to the heating space reaches the first water level as detected by the first water level electrode 153b of the water level detection unit 150, the supply of steam water is stopped.

[0165] Thereafter, as the steam water reaches the first water level, power is supplied to the first heater 130, and the steam water that has reached the first water level is heated by the heating of the first heater coil 131, generating steam (S142a).

[0166] Meanwhile, the temperature sensor 160 detects the temperature of the steam generated by heating by the first heater 130 at the first water level, and determines whether or not steam is generated (S143c). If the temperature detected by the temperature sensor 160 has not reached the steam temperature, it is determined that steam is not being generated, and the process waits until the steam generation temperature is reached (S144c).

[0167] Here, the steam generated at the first water level by the first heater 130 moves between the lower partition 180 and the upper partition 190 through the through hole 181 of the lower partition 180, and at the same time moves between the lower partition 180 and the upper partition 190 through the space between the lower partition 180 and the side wall 112a of the housing 110.

[0168] On the other hand, when the temperature sensor 160 detects the steam generation temperature, power is supplied to the second heater 140, and the steam remaining between the lower partition 180 and the upper partition 190 is heated again by the heating of the second heater coil 141 of the second heater 140, and the steam remaining between the lower partition 180 and the upper partition 190 is heated into superheated steam (S145c).

[0169] Here, the superheated steam heated between the lower and upper partitions by the second heater 140 forms a relatively high temperature / pressure compared to the steam generated by the first heater 130. Therefore, the superheated steam can be used more effectively to heat the wash water, heat the laundry, and sterilize the laundry.

[0170] Here, the superheated steam heated between the lower partition 180 and the upper partition 190 moves to the top of the upper partition 190 through the through hole 191 of the upper partition 190 and the space formed between the upper partition 190 and the side wall 112c of the housing 110.

[0171] Thereafter, the water level detection unit 150 detects a change in the water level of the steam water due to the generation of steam by the first heater 130 (S146c). If the first water level electrode 153b of the water level detection unit 150 detects that the water level is lower than the first water level, the water level detection unit 150 supplies additional steam water to replenish the steam water (S147c).

[0172] On the other hand, when power is applied to the first heater 130 and steam is generated, it is determined whether a set time for steam generation has elapsed (S148c), and if the set time has not elapsed, detection of the first water level (S146c) and additional supply of steam water (S147c) are repeated.

[0173] Here, the steam generated through the above-mentioned process is supplied to the storage section through the steam outlet 120b provided in the cover 120, and as the set time for steam generation elapses, the operation of the first heater 130 and the second heater 140 is stopped, and the steam process is terminated (S147a).

[0174] Although the preferred embodiment of the present invention has been described in detail above, those skilled in the art may modify and implement the present invention in various ways without departing from the spirit and scope of the present invention as defined in the appended claims. Therefore, modifications of the embodiments of the present invention cannot depart from the technology of the present invention.

[0175] [Claims (at the time of international application)] [Claim 1] A clothing treatment device, A cabinet and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is a housing for containing steam water and forming a heating space; a cover for covering said heating space; a first heater for preheating the steam water at a first water level or for heating the steam water to produce steam; A clothing treatment device comprising: a second heater that generates steam by heating steam water at a second water level higher than the first water level, or that generates superheated steam by heating steam generated at the first water level in a space between the first water level and the second water level. [Claim 2] 2. The clothing treatment device according to claim 1, wherein the steam generating device further comprises a water level detection unit that detects the first water level and the second water level of the steam water supplied to the heating space. [Claim 3] 2. The clothing processing device according to claim 1, wherein the water level detection unit includes a second water level electrode for detecting the first water level and a second water level electrode for detecting the second water level. [Claim 4] The first heater preheats and heats the steam water at the first water level according to the water level detection of the first water level electrode, 4. The clothing processing device according to claim 3, wherein the second heater generates steam by heating steam water at a second water level in accordance with the water level detected by the second water level electrode. [Claim 5] The steam generating device further includes a temperature sensor that detects the temperature inside the heating space to detect the generation of steam; The clothing treatment device according to claim 1, wherein the second heater generates superheated steam by heating steam above the first water level in response to steam detection by the temperature sensor. [Claim 6] The steam generating device is a lower bulkhead forming a passageway for steam generated at said first water level; The clothing treatment device of claim 1, further comprising: an upper partition located above the second heater and forming a path for the steam to move together with the lower partition. [Claim 7] The clothing treatment device of claim 6, wherein the second heater is located between the lower partition and the upper partition and heats the steam moving between the lower partition and the upper partition to generate superheated steam. [Claim 8] The clothing treatment device of claim 6, wherein the lower partition and the upper partition have a plurality of through holes to diffuse the steam and the superheated steam. [Claim 9] The lower partition is provided on the housing such that one side of the lower partition is open. the upper partition is provided on the housing such that the other side is open, The clothing treatment device according to claim 6, further comprising a path for the steam generated at the first water level to travel. [Claim 10] A clothing treatment device, A cabinet and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is a housing for containing steam water and forming a heating space; a cover for covering said heating space; a water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater for heating steam water below said first water level; A clothing treatment device comprising: a second heater that heats the steam generated by the first heater above the first water level to generate superheated steam, or heats the steam water supplied up to the second water level to generate steam. [Claim 11] 11. The clothing processing device according to claim 10, wherein the water level detection unit includes a first water level electrode for detecting the first water level and a second water level electrode for detecting the second water level. [Claim 12] The first heater preheats and heats the steam water at the first water level according to the water level detection of the first water level electrode, The clothing treatment device according to claim 11, wherein the second heater generates steam by heating steam water at a second water level in accordance with the water level detected by the second water level electrode. [Claim 13] The steam generating device further includes a temperature sensor that detects the temperature inside the heating space and detects the generation of steam; The clothing treatment device according to claim 10, wherein the second heater generates superheated steam by heating the steam above the first water level in response to steam detection by the temperature sensor. [Claim 14] The steam generating device is a lower bulkhead forming a passageway for steam generated at said first water level; The clothing treatment device of claim 10, further comprising: an upper partition located above the second heater and forming a path for the steam to move together with the lower partition. [Claim 15] The clothing treatment device of claim 14, wherein the second heater is located between the lower partition and the upper partition and heats the steam moving between the lower partition and the upper partition to generate superheated steam. [Claim 16] The clothing treatment device of claim 14, wherein the lower partition and the upper partition have a plurality of through holes to diffuse the steam and the superheated steam. [Claim 17] The lower partition is provided on the housing such that one side of the lower partition is open. the upper partition is provided on the housing such that the other side is open, The clothing treatment device according to claim 14, characterized in that it forms a path for the steam generated at the first water level. [Claim 18] A clothing treatment device, A cabinet and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is A box-shaped housing for containing the supplied steam water; a cover covering said housing; a first heater located in a lower portion of said housing; a lower bulkhead located above said first heater; a second heater located at an upper portion of said lower bulkhead; an upper partition located above the second heater; A clothing processing device, characterized in that the steam generated by heating with the first heater moves to the space between the lower partition and the upper partition, and is converted into superheated steam by the second heater. [Claim 19] The lower partition is configured such that steam generated by the first heater moves between the lower partition and the upper partition; The clothing treatment device according to claim 18, wherein the lower partition and the upper partition form a steam heating space heated by the second heater. [Claim 20] The clothing treatment device of claim 18, wherein the lower partition and the upper partition have a plurality of through holes to diffuse the steam and the superheated steam. [Claim 21] The lower partition is provided on the housing such that one side of the lower partition is open. the upper partition is provided on the housing such that the other side is open, The clothing treatment device according to claim 18, characterized in that it forms a path for the steam generated at the first water level. [Claim 22] A clothing treatment device, A cabinet and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is a housing for containing steam water and forming a heating space; a cover for covering said heating space; a water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below said first water level; a second heater positioned between the first water level and the second water level; a lower bulkhead located between said first water level and said second heater; an upper partition located above the second water level and forming a steam flow path together with the lower partition; The second heater generates superheated steam by heating steam generated by the first heater when the steam water is at the first water level, A clothing treatment device characterized in that, when the steam water is located at the second water level, the steam water is heated to generate steam, like the first heater. [Claim 23] The water level detection unit includes a first water level electrode that detects the first water level and a second water level electrode that detects the second water level, 23. The clothing treatment device according to claim 22, wherein the first heater preheats or heats the steam water at the first water level in accordance with the water level detection by the first water level electrode. [Claim 24] The steam generating device further includes a temperature sensor that detects the temperature inside the heating space and detects the generation of steam, 23. The clothing treatment device according to claim 22, wherein the second heater generates superheated steam by heating steam above the first water level according to steam detection by the temperature sensor. [Claim 25] 1. A method for controlling a clothing treatment device, comprising: The clothing processing device includes: A water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below the first water level; a steam generating device having a second heater located between the first water level and the second water level; a water supply step of supplying steam water to the steam generating device; a first water level detection step of detecting a first water level of the steam water to be supplied; a preheating stage in which the first level of steam water is preheated by the first heater; a second water level detection step of detecting a second water level higher than the first water level; a heating step of heating the steam water at the second water level by the second heater in response to the detection of the second water level to generate steam. [Claim 26] 26. The control method according to claim 25, further comprising: a second water level maintenance detection step of determining whether the water level of the steam water maintains a second water level after the heating step. [Claim 27] 27. The control method according to claim 26, further comprising: an additional water supply step of supplying additional steam water when the water level drops below the second water level in the second water level maintenance detection step. [Claim 28] 1. A method for controlling a clothing treatment device, comprising: The clothing processing device includes: A water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below the first water level; a steam generating device including a second heater located between the first water level and the second water level; a water supply step of supplying steam water to the steam generating device; a first water level detection step of detecting a first water level of the steam water to be supplied; a heating stage in which the steam water at the first level is heated by the first heater to generate steam; a superheated steam generating step in which the steam generated at the first water level is heated by a second heater to generate superheated steam. [Claim 29] 30. The method according to claim 28, further comprising: a steam detection step of measuring a temperature of the heating space and detecting generation of the steam after the heating step. [Claim 30] 30. The control method according to claim 29, further comprising: a first water level maintenance detection step of determining whether the water level of the steam water maintains a first water level after the heating step. [Claim 31] 31. The control method according to claim 30, further comprising: an additional water supply step of supplying additional steam water when the water level drops below the first water level in the first water level maintenance detection step.

Claims

1. A clothing treatment device, Cabinets and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is A housing for containing steam water and forming a heating space; A cover for covering the heating space; a first heater for preheating the steam water at a first water level or for heating the steam water to produce steam; A clothing treatment device comprising: a second heater that generates steam by heating steam water at a second water level higher than the first water level, or that generates superheated steam by heating steam generated at the first water level in a space between the first water level and the second water level.

2. The clothing treatment device according to claim 1 , wherein the steam generating device further comprises a water level detection unit that detects the first water level and the second water level of the steam water supplied to the heating space.

3. The clothing processing device according to claim 1 , wherein the water level detection unit includes a second water level electrode for detecting the first water level and a second water level electrode for detecting the second water level.

4. The first heater preheats and heats the steam water at the first water level according to the water level detection of the first water level electrode; The clothing treatment device according to claim 3, wherein the second heater generates steam by heating the steam water at a second water level in accordance with the water level detected by the second water level electrode.

5. The steam generating device further includes a temperature sensor that detects the temperature inside the heating space to detect the generation of steam; The clothing treatment device according to claim 1, wherein the second heater generates superheated steam by heating the steam above the first water level in response to steam detection by the temperature sensor.

6. The steam generating device is a lower bulkhead forming a passageway for steam generated at the first water level; The clothing treatment device according to claim 1 , further comprising: an upper partition located above the second heater and forming a path for the steam to travel together with the lower partition.

7. The clothing treatment device according to claim 6, wherein the second heater is located between the lower partition and the upper partition and heats the steam moving between the lower partition and the upper partition to generate superheated steam.

8. The clothing treatment device according to claim 6, wherein the lower partition and the upper partition have a plurality of through holes for diffusing the steam and the superheated steam.

9. The lower partition is provided on the housing such that one side of the lower partition is open. the upper partition is provided on the housing such that the other side is open, The clothing treatment device according to claim 6, further comprising a path for the steam generated at the first water level to travel.

10. A clothing treatment device, Cabinets and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is A housing for containing steam water and forming a heating space; A cover for covering the heating space; a water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater for heating steam water below said first water level; A clothing treatment device characterized by comprising: a second heater that heats the steam generated by the first heater above the first water level to generate superheated steam, or heats the steam water supplied up to the second water level to generate steam.

11. The clothing processing device according to claim 10, wherein the water level detection unit includes a first water level electrode for detecting the first water level and a second water level electrode for detecting the second water level.

12. The first heater preheats and heats the steam water at the first water level according to the water level detection of the first water level electrode; The clothing treatment device according to claim 11, wherein the second heater generates steam by heating steam water at a second water level according to the water level detected by the second water level electrode.

13. The steam generating device further includes a temperature sensor that detects the temperature inside the heating space and detects the generation of steam; The clothing treatment device according to claim 10, wherein the second heater generates superheated steam by heating the steam above the first water level in response to steam detection by the temperature sensor.

14. The steam generating device is a lower bulkhead forming a passageway for steam generated at the first water level; The clothing treatment device according to claim 10, further comprising: an upper partition located above the second heater and forming a path for the steam to move together with the lower partition.

15. The clothing treatment device according to claim 14, wherein the second heater is located between the lower partition and the upper partition and heats the steam moving between the lower partition and the upper partition to generate superheated steam.

16. The clothing treatment device according to claim 14, wherein the lower partition and the upper partition have a plurality of through holes for diffusing the steam and the superheated steam.

17. The lower partition is provided on the housing such that one side of the lower partition is open. the upper partition is provided on the housing such that the other side is open, The clothing treatment device according to claim 14, characterized in that it forms a path for the steam generated at the first water level.

18. A clothing treatment device, Cabinets and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is A box-shaped housing for containing the supplied steam water; a cover for covering the housing; a first heater located in a lower portion of the housing; a lower partition located above the first heater; a second heater located at an upper portion of the lower partition; an upper partition located above the second heater; A clothing treatment device characterized in that steam generated by heating with the first heater moves to the space between the lower partition and the upper partition, and is converted into superheated steam by the second heater.

19. The lower partition is configured such that steam generated by the first heater moves between the lower partition and the upper partition; The clothing treatment device according to claim 18, wherein the lower partition and the upper partition form a steam heating space heated by the second heater.

20. The clothing treatment device according to claim 18, wherein the lower partition and the upper partition have a plurality of through holes for diffusing the steam and the superheated steam.

21. The lower partition is provided on the housing such that one side of the lower partition is open. the upper partition is provided on the housing such that the other side is open, The clothing treatment device according to claim 18, characterized in that it forms a path for the steam generated at the first water level.

22. A clothing treatment device, Cabinets and A storage section located inside the cabinet for storing an object; A steam generator located outside the container for the object and generating steam to be supplied to the container, The steam generating device is A housing for containing steam water and forming a heating space; A cover for covering the heating space; a water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below said first water level; a second heater positioned between the first water level and the second water level; a lower bulkhead located between the first water level and the second heater; an upper partition located above the second water level and forming a steam flow path together with the lower partition; The second heater generates superheated steam by heating steam generated by the first heater when the steam water is at the first water level, A clothing treatment device characterized in that, when the steam water is located at the second water level, the steam water is heated to generate steam, like the first heater.

23. The water level detection unit includes a first water level electrode that detects the first water level and a second water level electrode that detects the second water level, The clothing treatment device according to claim 22, wherein the first heater preheats or heats the steam water at the first water level according to the water level detection of the first water level electrode.

24. The steam generating device further includes a temperature sensor that detects the temperature inside the heating space and detects the generation of steam, The clothing treatment device according to claim 22, wherein the second heater generates superheated steam by heating the steam above the first water level in response to steam detection by the temperature sensor.

25. 1. A method for controlling a clothing treatment device, comprising: The clothing treatment device includes: A water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below the first water level; a steam generating device including a second heater located between the first water level and the second water level; a water supply step of supplying steam water to the steam generating device; a first water level detection step of detecting a first water level of the steam water to be supplied; a preheating step in which the steam water at the first level is preheated by the first heater; a second water level detection step of detecting a second water level higher than the first water level; a heating step of heating the steam water at the second water level by the second heater in response to the detection of the second water level to generate steam.

26. The method according to claim 25, further comprising: a second water level maintenance detection step of determining whether the water level of the steam water is maintained at a second water level after the heating step.

27. The method according to claim 26, further comprising: supplying additional steam water when the water level is lower than the second water level in the second water level maintenance detection step.

28. 1. A method for controlling a clothing treatment device, comprising: The clothing treatment device includes: A water level detection unit that detects a first water level of steam water supplied to the heating space and a second water level higher than the first water level; a first heater located below the first water level; a steam generating device including a second heater located between the first water level and the second water level; a water supply step of supplying steam water to the steam generating device; a first water level detection step of detecting a first water level of the steam water to be supplied; a heating step in which the steam water at the first level is heated by the first heater to generate steam; a superheated steam generating step in which the steam generated at the first water level is heated by a second heater to generate superheated steam.

29. The method according to claim 28, further comprising: a steam detection step of measuring a temperature of the heating space and detecting generation of the steam after the heating step.

30. 30. The method according to claim 29, further comprising: a first water level maintenance detection step of determining whether the water level of the steam water maintains a first water level after the heating step.

31. The method according to claim 30, further comprising: supplying additional steam water when the water level is lower than the first water level in the first water level maintenance detection step.

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