KR101996527B1 - Boiling washing machine with hot water supplying apparatus - Google Patents

Abstract

In order to shorten the time required to heat the water in the washing tub, increase the heating efficiency, effectively perform the boiling operation, and shorten the time to boil the laundry, the outer case, the water tank installed inside the case, And a heating unit for heating the water supplied to the washing tub to allow the laundry to be washed, wherein the heating unit is disposed on the outer side of the water storage tank A circulation pipe connected to the lower end of the water tank and extending to an upper portion of the washing tub to circulate water in the tub, a pump installed at one side of the circulation pipe for circulating water through the circulation pipe, The surface of the circulation tube is heated to heat the water passing through the inside by applying heat to the entire circumference. The present invention also provides a washing machine having a boiling function including a heating element.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washing machine having a boiling function,

The present invention relates to a washing machine having a boiling function.

Generally, a washing machine having a boiling function is provided with a washing tank for washing and dehydrating, and a water tank outside the washing tub, and an electric heating heat is provided between the bottom of the washing tub and the bottom surface of the water tank to heat water in the washing tub.

Conventional boiled laundry machines have a structure in which water is heated using an electric heater provided under the washing machine.

Thus, the conventional structure takes a long time to heat the water in the washing tub, so that it takes a long time to boil laundry and wastes electric power. In addition, there is a disadvantage in that it is difficult to control the temperature precisely because the heating efficiency and the temperature response characteristics are deteriorated.

Provided is a washing machine having a boiling function capable of shortening the time required for heating water in a washing tub, increasing the heating efficiency, effectively performing the boiling action, and shortening the time for boiling laundry.

Further, the present invention provides a washing machine having a boiling function that can control the temperature of water accurately and is thus easier to use.

Also provided is a washing machine having a boiling function that is simple to install and easy to manufacture.

The present invention also provides a washing machine having a boiling function capable of drying laundry more easily and effectively.

The washing machine according to the present embodiment is characterized in that the washing machine of the present embodiment includes a casing forming an outer shape, a water storage tank provided inside the case, a rotatably installed inside the water storage tank, a surface communicating with the water storage tank, And a heating unit for heating the water supplied to the washing tub,

The heating unit includes a circulation pipe disposed outside the water storage tank and connected to a lower end of the water storage tank and extending to an upper portion of the washing tub to circulate water in the washing tub, a pump installed at one side of the circulation pipe for circulating water through the circulation pipe, And an area surface conduction heating body which surrounds the outer circumferential surface to heat water passing through the inside of the circulating tube by applying heat to the entire circumferential surface of the circulating tube.

The heating unit may further include a surface conduction heating body which surrounds the outer circumferential surface at one side of a supply line for supplying water into the washing tub and heats the water passing through the inside of the supply line by applying heat to the entire circumferential surface of the supply line.

A plurality of the heating units may be arranged along the circumferential direction on the outer side of the water storage tank.

The washing machine may further include a hot air blower for applying hot air for drying laundry to the inside of the washing machine.

The blowing fan is installed at the outside of the water tank and extends to the inside of the washing tub. The blowing fan is installed at the outer end of the blowing pipe to blow outside air into the blowing pipe. The blowing fan is installed at one side of the blowing pipe to heat the entire circumference of the blowing pipe. And an area surface conduction heating body for heating the air passing through the inside.

A plurality of the hot air portions may be arranged along the circumferential direction on the outer side of the water storage tank.

A power supply unit connected to the surface conduction heating body for applying power, and a controller for controlling the power supply unit and the pump or the blowing fan.

And a flow rate sensor for detecting a flow rate of the fluid passing through the surface conduction heating body, wherein the controller controls the amount of current supplied to the surface conduction heating body through the power supply unit according to the flow rate of the fluid detected by the flow rate sensor Lt; / RTI >

The surface conduction heating body may include a conductive film member on which a transparent conductive heating material (TCM) is deposited on a surface, and a metal electrode for applying a current to both ends of the conductive film may be connected to the power supply.

As described above, according to the present embodiment, the water in the washing tub can be heated and circulated to increase the heating efficiency, effectively to live the laundry, and to minimize the energy required to cook the laundry.

In addition, the water in the washing tub can be heated more quickly, so that the entire process time required for boiling laundry can be minimized.

In addition, interference with water is minimized, and installation and maintenance are easy.

In addition, it is possible to more efficiently provide hot air, thereby saving time and energy required for drying laundry.

1 is a schematic side cross-sectional view showing a washing machine having a boiling function according to the present embodiment.
FIG. 2 is a schematic view showing a structure of a heating unit of a washing machine having a boiling function according to the present embodiment.
FIG. 3 is a schematic plan sectional view showing a heating unit arrangement structure of a washing machine having a boiling function according to the present embodiment.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a schematic side cross-sectional view showing a washing machine having a boiling function according to the present embodiment.

1, the washing machine 10 of the present embodiment includes a case 12, a water storage tank 14, a washing tub 16, a heating unit 30, and a hot air unit 50.

The case 12 forms the outer shape of the washing machine. As shown in FIG. 1, the washing machine 10 of the present embodiment can be formed in various forms such as a vertical structure in which an upper portion is opened and a floor and a side are closed, or a horizontal structure in which upper and lower ends are closed and one side is opened. It is not limited.

Inside the case 12, a cylindrical water tank 14 containing water is provided. The reservoir 14 may be in the form of a container with the top open. A drain pipe (15) for discharging the filled water is installed at one side of the bottom of the water storage tank (14). In addition, a supply line 20 for supplying water for washing into the washing tub 16 may be connected to the upper portion of the water storage tank 14. The supply line 20 is connected to, for example, a water pipe to supply tap water to the water storage tank 14.

A washing tub (16) is installed in the water storage tank (14). The washing tub 16 is a container in which the laundry is received therein and is laundered, dewatered and dried, and may be formed in the form of a cylinder having an open top. On the surface of the washing tub 16, a hole 17 communicating with the water storage tank 14 and allowing water to flow in and out is formed. The washing tub 16 may be provided with a rotary washing plate 18 for washing. The washing tub 16 is arranged on the same axis as the central axis of the water storage tank 14 and is rotatably provided to the water storage tank 14. A driving unit 19 may be installed outside the lower portion of the water storage tank 14 for rotating the washing tub 16 and the washing washing plate 18 in the washing tub 16.

When the water flows into the water storage tank 14 through the supply line 20, the washing water is filled in the washing tub 16 through the holes 17 formed in the washing tub 16 to wash the laundry, The water in the washing tub 16 flows into the water storage tank 14 through the holes 17 and is discharged through the drain pipe 15 when the drain pipe 15 of the washing tub 14 is opened. When the washing tub 16 is rotated at a high speed for dewatering, the dewatered water flows into the water storage tank 14 through the hole 17 of the washing tub 16 and is discharged to the outside through the drain pipe 15 as well.

The washing machine according to the present embodiment instantaneously heats the water in the washing tub 16 through the heating unit 30 and circulates the water continuously, so that the laundry can be effectively consumed.

The heating unit 30 includes a circulation pipe 32 disposed on the outer side of the water storage tank 14 and connected to the lower end of the water storage tank 14 and extending to the upper portion of the washing tank 16 to circulate water in the washing tank 16, A pump 34 installed at one side of the circulation pipe 32 for circulating water through the circulation pipe 32 and a pump 34 surrounding the outer circumference at one side of the circulation pipe 32 to heat the entire circumference of the circulation pipe 32 And an area surface conduction heating body 40 for heating the water passing through the inside.

Thus, the water supplied into the washing tub 16 is continuously circulated from the lower part to the upper part by the pump 34. The water is instantaneously heated to a high temperature by the surface conduction heating body 40 provided on the circulation pipe 32 while passing through the circulation pipe 32. Therefore, by heating the water in the washing tub 16 to a high temperature while continuously circulating the water, the water in the washing tub 16 can be effectively heated and maintained at a high temperature.

In this manner, the apparatus is heated by flowing water into the internal flow path space surrounded by the surface conduction heating element separated from the washing tub, and the heated water is immediately circulated to the washing tub.

Conventionally, since a heater is disposed between a water tank and a washing tub, it is necessary to surround the heater to isolate the water. When the heater is operated to heat the water, the water in the water tank around the heater is heated so that the water in the upper washing tub is gradually heated . Conventionally, it takes a long time to heat the water, and it takes a long time to boil the laundry in the washing tub, and the power is wasted.

On the other hand, in the present embodiment, power consumption is not required due to the direct heating structure of the metal heating element, thereby reducing consumption of standby power.

In addition, as mentioned above, it is possible to supply hot water through a simple operation to install the water in the channel through which the water is transferred, instantaneously heat the water through the surface conduction heating body, It is possible to shorten the time required for the operation.

In the present embodiment, the heating unit 30 can heat the raw water supplied to the washing machine to a high temperature. The heating unit 30 is provided to surround the outer circumferential surface of the supply line 20 to supply water to the washing tub 16 so as to heat the entire outer circumferential surface of the supply line 20, And the surface conduction heating body 40 may be further included. Thus, the raw water supplied to the washing machine through the supply line 20 can be instantaneously heated and supplied at a high temperature.

In this way, the raw water supplied to the washing machine can be directly supplied to the boiler for heating, and the water in the washing tub 16 is circulated through the heating unit 30 provided in the water storage tank 14, The water can be heated more effectively and maintained at a high temperature.

1, the circulation pipe 32 is disposed outside the water storage tank 14 of the washing machine, and is disposed between the water storage tank 14 and the case 12. As shown in FIG. The upper end of the circulation pipe 32 extends to the washing tub 16 and the lower end of the circulation pipe 32 communicates with the lower side of the water storage tank 14. A pump (34) is installed at one side of the circulation pipe (32). The pump 34 forcibly circulates water from the lower part of the water storage tank 14 to the upper part of the washing tub 16.

In this embodiment, a plurality of the heating units 30 may be arranged along the outer circumferential surface of the water storage tank 14 at intervals. In order to minimize the vibration of the water storage tank 14, the heating unit 30 is disposed opposite to the center of the water storage tank 14 so as to minimize weight unbalance. The number of the heating units 30 may be variously modified and is not particularly limited.

2 shows in detail the structure of the heating section including the surface conduction heating body 40. As shown in Fig. 2 (a), the washing machine of this embodiment includes a power supply unit 46 connected to the surface conduction heating body 40 for applying a current, and a control unit for controlling the power supply unit 46 and the pump 34 And a control unit 48 for driving the display unit. The flow rate sensor 49 may further include a flow sensor 49 connected to the controller 48 to measure the flow rate of water passing through the flow path of the heating unit provided with the surface-area conductive heating element. The flow path of the heating section may refer to the supply line 20 or the circulation pipe 32 provided with the surface conduction heating body. The control unit 48 controls the power supply unit 46 according to the flow rate detected by the flow sensor 49 to adjust the amount of current supplied from the power supply unit to the surface conduction heating element 40, So that the surface conduction heating body can be controlled and operated. For example, by controlling the current value applied to the surface conduction heating element provided in the circulation tube according to the flow rate of the water transferred through the circulation tube, it is possible to uniformly heat to a desired temperature regardless of the flow rate of water passing through the circulation tube.

In this way, the power supply unit 46 is controlled and operated by the control unit 48 to apply the necessary current to the planar surface conduction heating body 40 to heat the surface conduction heating body 40 to a desired set temperature. As shown in FIG. 2 (b), the surface conduction heating body 40 surrounds the outer circumferential surface of the circulation pipe 32 and applies heat to the entire outer surface of the circulation pipe 32. Thus, as the entire surface of the circulation pipe 32 is heated through the surface conduction heating body 40, the water passing through the circulation pipe 32 can instantaneously be heated by the high temperature.

The water heated to a high temperature passing through the circulation pipe 32 flows into the upper part of the washing tub 16 according to the driving of the pump 34 and the low temperature water in the lower part of the washing tub 16 is circulated by the pump 34 (32) and is again heated to a high temperature by the surface conduction heating body (40). Thus, the water inside the washing tub 16 is continuously circulated and heated by the surface-area conductive heating body 40 to effectively heat water in the washing tub 16 to a high temperature state and effectively maintain the temperature, The water heating time and the time to boil the laundry can be shortened.

The surface conduction heating body 40 may be a conductive film member and a transparent conductive heating material (TCM) deposited on the surface thereof. Metal electrodes 42 and 44 for applying currents are provided at both ends of the surface conduction heating body, and are connected to the power supply unit 46.

The surface conduction heating body 40 may be a planar structure having a conductive material that generates heat when a current is applied, such as a nanowire, a carbon nanostructure, a metal paste, or a metal nanoparticle in addition to the conductive film material on which the transparent conductive heating material is deposited . The surface conduction heating body 40 may be attached to the outer surface of the circulation pipe 32 with a thin film structure. Metal electrodes 42 and 44 for applying a current to a conductive material are provided at both ends of the surface conduction heating body 40, respectively. When current is applied through the metal electrodes 42 and 44 connected to the power supply unit 46, heat is generated at the surface of the surface conductive heating element 40. Heat generated in the surface conduction heating body 40 is uniformly applied to the entire circulation pipe 32 and the water passing through the circulation pipe 32 is supplied to the surface conduction heating body 40 in a state where the surface conduction heating body 40 is attached to the surface of the circulation pipe 32 So that the heating can be performed more effectively.

The surface-area conductive heating element can be quickly heated to various temperatures and supplied by adjusting the deposition thickness of the transparent conductive heating material of the conductive film member and the magnitude of the applied current. In the present embodiment, the surface conductive heating element may be heated to 50 to 120 占 폚.

In addition, the washing machine of the present embodiment may further include a hot air blower 50 for applying hot air for drying laundry into the washing tub 16.

The hot air unit 50 includes a blowing pipe 52 installed outside the water storage tank 14 and extending into the washing tub 16 and a blowing pipe 52 installed at the outer end of the blowing pipe 52 for introducing the outside air into the blowing pipe 52 And a surface conduction heating body 40 which surrounds the outer circumferential surface at one side of the blowing tube 52 and heats the entire outer circumferential surface of the blowing tube 52 to heat the air passing through the inside thereof.

The outside air is supplied to the inside of the washing tub 16 through the blowing pipe 52 by the blowing fan 54. The outside air is instantaneously heated to a high temperature by the surface-area conductive heating body 40 provided on the blowing pipe 52 while passing through the blowing pipe 52. Therefore, the outside air can be efficiently heated and supplied to the inside of the washing tub 16.

1, the blowing pipe 52 is disposed outside the water storage tank 14 of the washing machine, and is disposed between the water storage tank 14 and the case 12. As shown in FIG. The circulation pipe 32 extends along the upper and lower portions of the water storage tank 14 and forms a flow path therein. The upper end of the circulation pipe 32 is extended to the washing tub 16 and the lower end thereof is provided with a blowing fan 54. The air blowing fan 54 blows the air outside the water storage tank 14 to the inside of the washing tub 16.

In the present embodiment, a plurality of the hot air portions 50 may be arranged along the outer circumferential surface of the water storage tank 14 at intervals. In order to minimize the vibration of the water storage tank 14, the blower unit is disposed opposite to the center of the water storage tank 14 so as to minimize weight unbalance.

3 shows an example in which the heating unit 30 and the hot air unit 50 are appropriately disposed in the washing machine according to the present embodiment. 3, the heating unit 30 and the hot air unit 50 may be alternately disposed at an angle of 90 degrees along the outer circumferential direction of the water storage tank 14 of the washing machine. Thus, the heating portions 30 and the hot air portions 50 can be disposed while being balanced with respect to the outer circumferential surface of the water storage tank 14 while being opposed to each other with respect to the center of the water storage tank 14. Therefore, even if the heating unit 30 and the hot air unit 50 are installed in the water storage tank 14, the vibration of the water storage tank 14 can be minimized.

As shown in FIG. 2, the planar heating element mounted on the blowing pipe 52 of the hot air blower 50 is also connected to the power supply unit 46 and the control unit 48. The flow rate sensor 49 may further include a flow sensor 49 connected to the controller 48 to measure the flow rate of air passing through the flow path of the hot air portion provided with the surface-area conductive heating element. The flow path of the hot air portion may mean a blowing pipe 52 provided with an area conductive heating element. The control unit 48 controls the power supply unit 46 according to the flow rate detected by the flow sensor 49 to adjust the amount of current supplied from the power supply unit to the surface conduction heating element 40, So that the surface conduction heating body can be controlled and operated. For example, it is possible to supply a uniform hot air to a desired temperature regardless of the air flow rate passing through the blowing pipe by controlling the current value applied to the surface conduction heating element provided in the blowing pipe according to the flow rate of the outside air passing through the blowing pipe.

As the control unit 48 is driven, the power supply unit 46 is controlled and operated to apply the necessary current to the surface conduction heating body 40 of the blowing tube 52 to heat the surface conduction heating body 40 to a desired set temperature . The surface conduction heating body provided on the blowing pipe 52 may have the same structure as that of the surface conduction heating body provided on the circulation pipe 32, and the same reference numerals are used here and the detailed description is omitted.

Hereinafter, the operation of the washing machine according to the present embodiment will be described.

The water supplied from the water pipe is supplied to the washing machine through the supply line 20 and the supply line 20 is supplied from the power supply unit 46 in accordance with the driving of the control unit 48. In this case, Power is applied to the surface conduction heating body 40 provided on the surface conduction heating body 40 so that the surface conduction heating body 40 is heated. Thus, water passing through the supply line 20 is heated to a high temperature and supplied to the washing machine. Thus, the high-temperature water suitable for the boil-off function can be directly supplied to the washing machine through the supply line 20.

The hot water supplied to the washing tub 16 is circulated through the circulation pipe 32 and maintained at a high temperature. The pump 34 is driven in accordance with the signal from the control unit 48 and the water in the lower part of the washing tub 16 is circulated to the upper part of the washing tub 16 through the circulation pipe 32. The flow rate of water supplied through the circulation pipe is detected by the flow rate sensor, and the control unit controls the surface-area conduction heating body in accordance with the detected value of the flow rate sensor. Thus, the surface conduction heating body (40) provided in the circulation pipe (32) is heated to a high temperature to heat water passing through the circulation pipe (32). Accordingly, the water in the washing tub 16 is continuously circulated through the circulation pipe 32, and is directly supplied into the washing tub 16, thereby rapidly raising the temperature of water in the washing tub 16. As the pump is driven, the water is continuously circulated to the washing tub, so that the water in the washing tub 16 is maintained at a high temperature.

As described above, by heating the water in the washing tub 16 more rapidly and maintaining the temperature, it is possible to further shorten the time for boiling the laundry.

Power is supplied from the power supply unit 46 to the planar heating element provided on the blowing pipe 52 and the blowing fan 54 in accordance with the signal from the control unit 48 so that the planar heating element The blowing fan 54 is operated. The air outside the water storage tank 14 flows into the blowing pipe 52 by the blowing fan 54 and is blown into the washing tub 16. The air passing through the blowing pipe 52 is heated by the surface heating element provided on the blowing pipe 52 and is produced as hot air at a high temperature. The planar heating element instantaneously heats air passing through the air blowing pipe 52, and hot air of high temperature is blown into the washing tub 16 through the air blowing pipe 52.

As described above, since the air is instantaneously heated and heated through the surface heating element, the time required for heating the air can be shortened, and hot air can be produced more effectively to dry the laundry.

Accordingly, when performing the boiling function and the drying function of the washing machine according to the present embodiment, the washing and drying time to boil through the surface conduction heating body 40 is remarkably reduced, so that the power consumption can be minimized and the stability of the product can be realized .

In addition, since the heating efficiency of the water in the washing tub 16 is very high, no time delay occurs in washing and drying clothes, and the temperature of the washing tub 16 can be controlled according to the response characteristic of temperature, Drying is possible.

Thus, in comparison with the conventional structure using a conventional metal resistance heating element such as a nichrome wire, the thermal efficiency can be increased to 95% or more in this embodiment.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course.

10: Washing machine 12: Case
14: Water tank 16:
20: supply line 30: heating section
32: circulation pipe 34: pump
40: Surface-area conductive heating element 42, 44: Metal electrode
46: power supply unit 48:
49: Flow sensor 50: Hot air
52: air blowing pipe 54: blowing fan

Claims (9)

A case constituting an external shape, a water reservoir provided inside the case;
A washing tub which is rotatably installed inside the water storage tank and has a surface communicating with the water storage tank to form a hole through which water is circulated to wash and dehydrate;
A heating unit for heating the water supplied to the washing tub to make the laundry stand; And
And a hot air blower for applying hot air for drying the laundry to the inside of the washing tub,
The heating unit includes:
A circulation pipe disposed on the outer side of the water tank and connected to the lower end of the water tank and extending to the upper part of the washing tub to circulate water in the washing tub;
A pump installed at one side of the circulation pipe for circulating water through the circulation pipe; And
And a surface conduction heating body which surrounds the outer circumferential surface at one side of the circulation tube and heats the water passing through the inside of the circulation tube by applying heat to the entire circumference of the circulation tube,
The heating unit includes:
A pair of water supply pipes arranged on the outer side of the water storage tank along a circumferential direction,
The hot-
A blowing pipe installed outside the water storage tank and extending into the washing tub;
A blowing fan installed at the outer end of the blowing pipe to introduce outside air into the blowing pipe; And
And a surface conduction heating body which surrounds the outer circumferential surface of the blowing tube and heats the entire outer circumferential surface of the blowing tube to heat air passing through the inside of the blowing tube,
The hot-
The washing machine according to any one of claims 1 to 5, wherein the water tank is disposed at an outer side of the water storage tank in a circumferential direction, and the water storage tank is disposed to face the water storage tank. The method according to claim 1,
Wherein the heating unit further comprises an area surface conduction heating body which surrounds the outer circumferential surface of the supply line to supply water into the washing tub and applies heat to the entire outer circumferential surface of the supply line to heat water passing through the inside of the supply line. delete delete delete delete The method according to claim 1,
A power supply unit connected to the surface conduction heating body for applying power, and a controller for controlling the power supply unit and the pump or the blowing fan. 8. The method of claim 7,
Wherein the control unit controls the amount of the current supplied to the surface conduction heating body through the power supply unit according to the flow rate of the fluid detected by the flow rate sensor, wherein the flow rate sensor detects the flow rate of the fluid passing through the surface conduction heating body A washing machine having a boiling function of structure. 9. The method of claim 8,
The surface-area conductive heating element is made of a conductive film member on which a transparent conductive heating material (TCM) is vapor-deposited on the surface, and a metal electrode for applying a current to both ends of the conductive electrode is installed.

Images