KR20060077271A - Drum type washing machine with drying function - Google Patents

Abstract

The present invention relates to a combined drum washing machine using only one heater that can combine a heater for heating wash water and a heater for heating air for drying.

The present invention, the cabinet constituting the main body of the drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, a hot air inlet formed at a lower rear portion thereof, and a hot air outlet formed at an upper portion thereof; A drum rotatably installed in the tub, the drum having a plurality of through holes for flowing in and out of the washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; It provides a dry combined drum washing machine comprising a heater installed in the bottom between the inside of the tub and the drum so that the air flowed through the hot air inlet.

Drying drum washing machine, washing water heating heater, drying heater

Description

Drying Drum Washing Machine {Drum Type Washing Machine with Drying Function}

1 is a block diagram showing the structure of a conventional dry-use drum washing machine

2 is a block diagram showing the structure of the drum washing machine shown in FIG.

Figure 3 is a side cross-sectional view showing the structure of a dry drum washing machine according to a first embodiment of the present invention

4 is a cross-sectional view showing the structure of the dry-use drum washing machine shown in FIG.

Figure 5 is a side cross-sectional view showing the structure of a dry drum washing machine according to a second embodiment of the present invention

<Description of Symbols for Main Parts of Drawings>

10 cabinet 11 door

13: inlet 20: tub

21: hot air inlet 22: hot air outlet

30: drum 31: through hole

40: heater 70: motor

100: drying duct 110: blowing fan

120: protection member 121: outflow hole                 

122: opening 130: guide

140: insulation

The present invention relates to a drum washing machine, and more particularly, to a drying drum washing machine equipped with both a boiling function and a drying function.

Generally, a washing machine is a pulsator-type washing machine that washes by water flow generated by rotating a plate-type pulsator, and a drop and friction force of washing water and laundry generated inside a bucket by rotating a lying container. The washing machine is roughly classified into a drum washing machine.

Also in the drum washing machine, there are a drum washing machine of a type in which the drum is laid horizontally, and an inclined drum washing machine in which the drum is inclined at a predetermined angle with respect to the horizontal plane.

The drum washing machine has a tendency of increasing demand due to the use of less water and detergent when washing, less damage to the cloth, little tangling of the laundry compared to the pulsator type washing machine.

Referring to Figure 1 and Figure 2 describes an example of a conventional dry-use drum washing machine as follows.

Drying drum washing machine includes a cabinet 10 constituting the main body, a tub 20 horizontally mounted in the cabinet 10, a drum 30 rotatably mounted in the tub 20, and washing water. Washing water supply pipe 51 for guiding the flow of the drive unit, driving means for driving the drum 30, and drying means for supplying heated air into the drum (30).

Here, the front of the cabinet 10 is formed with an inlet (13) for the input / withdrawal of laundry, the door 13 for opening and closing the inlet 13 is turned forward in the peripheral portion of the inlet (13) Possibly mounted.

The tub 20 is provided between a lower side of the outer circumferential surface and a lower surface of the cabinet 10 to provide a damper (not shown) that attenuates vibration generated during washing and dehydration. A plurality of tension springs (not shown) are installed between the upper surface of the outer circumference and the upper surface of the cabinet 10 to support the tub 20 in a floating state and to act as a buffer for vibration.

At this time, a heating heater 40 for heating the wash water is provided at the bottom between the inside of the tub 20 and the drum 30 so that the temperature of the wash water used for washing may be controlled. .

In addition, the drum 30 is rotatably mounted in the tub 20, and a plurality of through holes 31 are formed on the circumferential surface of the drum 30 for inflow / outflow of wash water.

In addition, the wash water supply pipe 51 serves as a conduit through which the wash water flows, and serves to guide the wash water supplied from the external water pipe through the water supply valve 52 into the tub 20.

At this time, the detergent storage unit 53 for storing the detergent for washing is installed on the pipe line of the wash water supply pipe 51, the detergent storage unit 53 when the wash water is supplied to the tub 20 The detergent is melted and supplied during the process.

The detergent storage unit 53 is provided on the upper space in the cabinet 10, it is configured to enable the introduction of detergent from the outside.

In addition, the end of the wash water supply pipe 51 is connected to the upper end of the front side of the tub 20 is configured to wash water from the bottom of the tub 20 and the drum 30 by the natural fall.

In addition, the driving means is installed on the lower side of the tub 20 is connected to the drum driving motor 71 for generating a driving force, and to transfer the driving force of the drum driving motor 71 to the drum (30). It comprises a belt 72.

On the other hand, in recent years, instead of the above-described driving means, a lot of direct-type BLDC (Brushless DC) motors mounted on the rear wall side of the tub 20 and directly transmitting the driving force of the motor to the drum 30 have been applied.

The drying means includes a drying duct 60 through which air flows, a drying heater 61 provided on a conduit of the drying duct 60 to heat the air, and generated in the drying heater 61. It includes a blowing fan 62 for forced circulation of hot air.

At this time, one end of the drying duct 60 is connected to the side of the tub 20 and the other end is connected to the upper portion of the tub 20 so that the hot air flowing out of the drum 30 passes through the drying heater 61. By forming a flow path flowing back to the drum 30 through), it is configured to circulate the hot air in the drum (30).                         

In addition, on the pipeline of the drying duct 60, a cooling water supply pipe 54 for supplying cooling water so as to condense water in the air flowing out of the drum 30 along the drying duct 60 is connected. .

At this time, when the cooling water is supplied from the cooling water supply pipe 54, the supersaturated moisture is condensed and removed in the process of cooling the hot air flowing through the drying duct 60, and is reheated while passing through the drying heater 61 again. Since hot air is supplied at high temperature, the performance of the blower fan 62 and the efficiency of the drying heater 61 are prevented.

In addition, the cooling water supply pipe 54 is connected to the water supply valve 52 for supplying cooling water.

At this time, the water supply valve 52 is the washing water supplied to the drum 30 through the washing water supply pipe 51 when the cooling water for condensation is required to the drying duct 60 through the cooling water supply pipe 54. It is operated to supply only a very small amount compared to

The conventional drum washing machine configured as described above proceeds with drying while rotating the drum 30 at a low speed (about 20-30 rpm) after washing and dehydration, and hot air heated by the drying heater 61 during the drying process is usually used. The drum 30 is introduced into the drum through the front upper side, and exits through the drum 30 front lower side again.

However, the conventional dry-use drum washing machine described above has the following problems.

Typically, a combined drum washing machine for washing water is provided separately for a washing water heater for heating the washing water, and a drying heater for drying the air for drying, and used according to each application.

Therefore, the combined drying drum washing machine has to be attached separately to the drying duct and drying heater for drying, the structure is complicated, there are problems that are difficult to install according to various constraints and the cost increases.

The present invention is to solve the above problems, an object of the present invention is not provided with a heater for heating the washing water and a heater for heating the air separately, by using in combination for cost reduction and simplified structure It is to provide a dry drum washing machine.

In order to achieve the above object, the present invention, the cabinet constituting the main body of the drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, a hot air inlet formed at a lower rear portion thereof, and a hot air outlet formed at an upper portion thereof; A drum rotatably installed in the tub, the drum having a plurality of through holes for flowing in and out of the washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; It provides a dry combined drum washing machine comprising a heater installed in the bottom between the inside of the tub and the drum so that the air flowed through the hot air inlet.

According to another embodiment of the present invention, there is provided a cabinet for forming a main body of a drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, and a hot air inlet formed at a lower rear portion thereof, and a hot air outlet formed at an upper rear portion thereof; A drum rotatably installed in the tub, the drum having a plurality of through holes for flowing in and out of the washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; A heater installed at a bottom portion between the inside of the tub and the drum to allow air introduced through the hot air inlet to pass therethrough; In order to protect the tub from the heat of the heater provides a combined drum washing machine comprising a protection member installed to surround the heater.

In addition, according to another embodiment of the present invention, the cabinet constituting the main body of the drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, a hot air inlet formed at a lower rear side, and a hot air outlet formed at a front upper portion thereof; A drum rotatably installed in the tub, the drum having a plurality of through holes for flowing in and out of the washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; A heater installed at a bottom portion between the inside of the tub and the drum to allow air introduced through the hot air inlet to pass therethrough; In order to protect the tub from the heat of the heater to provide a drying drum washing machine comprising a protection member installed to surround the heater.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

The same components as in the prior art are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

Referring to Figures 3 and 4, when describing a drying drum washing machine according to a first embodiment of the present invention.

Drying drum washing machine according to the present invention, the cabinet 10 constituting the main body, the tub 20 is installed in the cabinet 10 to store the wash water, rotatably installed in the tub 20 And a drum 30 formed with a plurality of through holes 31 for flowing in and out of washing water and hot air along the circumferential surface thereof, and a heater installed at a bottom portion between the inside of the tub 20 and the drum 30. 40 and a drying duct 100 forming a flow path for supplying heated air into the drum 30.

Hot air inlet 21 is formed in the lower rear of the tub 20, hot air outlet 22 is formed in the upper rear side.

By the way, the hot air inlet 21, the support 20 (not shown) is fixed to support the heater 40 to the tub 20 and the power connection portion (not shown) of the heater 40 is drawn out, The hole is formed around the support (not shown), it is preferable to form a structure that allows the inflow of air toward the heater 40.

Alternatively, a support part (not shown) for fixing the heater 40 is formed at a lower portion of the rear surface of the tub 20, and bypasses the support part (not shown) to allow air to flow toward the heater 40. It may also be possible to form the hot air inlet (21).

In addition, the drying duct 100 is connected to the hot air inlet 21 and the hot air outlet 22 of the tub 20 to dry the laundry by forcibly injecting / circulating air into the drum 30. .

In addition, a blowing fan 110 for forcibly blowing air toward the hot air inlet 21 is installed in the drying duct 100.

On the other hand, the drum 30 is made of a stainless steel material is good heat resistance, but the tub 20 is relatively weak to heat because the plastic injection molding.

Therefore, a protection member 120 is provided to protect the tub 20 from the heat of the heater 40 by being spaced apart at predetermined intervals along the circumference of the heater 40.

That is, as shown in Figure 4, the protective member 120 is installed to surround both the upper, lower and side portions of the heater 40, the tub 20 by the heat generated by the heater 40 To prevent overheating.

In addition, the protection member 120 serves to guide the air flowing into the hot air inlet 21 to pass through the heater 40 to the drum 30 from the front side.

On the other hand, the protective member 120 is preferably formed of a stainless steel material excellent in heat resistance (耐熱) and corrosion resistance (耐蝕).

In addition, the protection member 120, the protection member 120 is installed on the heater 40, so as to enable the smooth flow of wash water and air between the heater 40 and the drum 30. A plurality of outlet holes 121 are formed, and an opening 122 is formed in the front side so that air flows into the drum 30.

Alternatively, the protective member 120 may not be installed on the upper portion of the heater 40 so as not to interfere with the inflow and outflow of the washing water and the hot air toward the heater 40.

In this case, the protection member 120 may selectively form one or both of the outlet hole 121 and the opening 122.

On the other hand, the position of the opening 122 of the protective member 120 is formed in a diagonal direction with the hot air outlet 22 of the tub 20, the heated air can be evenly spread inside the drum 30. To make it work.

In addition, a guide 130 for guiding air introduced into the heater 40 to the drum 30 is installed in front of the protection member 120.

At this time, the guide 130 may be formed integrally with the protection member 120, or may be formed as a separate object.

In addition, like the protection member 120, the guide 130 is preferably formed of a stainless steel material to have heat resistance and corrosion resistance.

In addition, a heat insulating material 140 for intercepting heat transfer from the heater 40 is interposed between the protection member 120 and the tub 20.

At this time, since the heat insulator 140 is provided to further increase the blocking rate of heat transmitted from the heater 40 to the tub 20, the heat insulator 140 is optionally installed on the side and bottom. It is possible.

In addition, by installing the heat insulating material 140 on the inner side that is the side of the protection member 40 facing the heater 40 (particularly in the protection member 40 installed on the heater 40), the heater By limiting the heat generated in the 40 to the space surrounded by the protection member 120, it is also possible to increase the heating efficiency of the heater 40 by allowing only the washing water and the air is heated therein.

Looking at the drying operation of the first embodiment according to the present invention described above are as follows.

When power is applied to the blowing fan 110, forced flow of air occurs along the drying duct 100 to the hot air inlet 21 of the tub 20.

The air introduced into the hot air inlet 21 is heated while passing through the heater 40, and is supplied to the drum 30 through the opening 122 of the protection member 120 formed in front.

Then, inside the drum 30, the heated air flows to the laundry to heat the laundry to evaporate moisture, and flows toward the hot air outlet 22 of the tub 20 formed diagonally including the evaporated water. do.

The hot air flowing into the drying duct 100 from the hot air outlet 22 is cooled while passing through the drying duct 100 to which cold cooling water is supplied, and condensed and removed moisture contained in the air, and then the heater ( Flows back to 40).                     

Through the waste circulation of the air as described above to dry the laundry.

Therefore, according to the present invention, one heater 40 can be used for both washing water heating and air heating.

On the other hand, since the air flows through the bottom of the drum 30 as a whole, it can be evenly spread in the drum 30, the position of the hot air outlet 22 of the tub 20 is located at any top of the tub 20 It is possible to form in position.

Referring to Figure 5, when describing a dry drum washing machine according to a second embodiment of the present invention.

The basic configuration of the second embodiment is the same as that of the first embodiment described above.

However, in this embodiment, unlike the first embodiment described above, the position of the hot air outlet 22 in the tub 20 is characterized in that formed on the front upper portion of the tub 20.

The tub 20 is formed with a hot air inlet 21 so that air flows toward the heater 40 at the lower rear side.

At this time, the hot air inlet 21 has a structure in which a support part (not shown) for fixing and supporting the heater 40 is formed, and a hole through which air can be introduced into the support part (not shown) is formed.

The hot air outlet 32 is formed at a position corresponding to the hot air outlet 22 of the tub 20 on the front surface of the drum 30.

And, the drying duct 200 is connected to the hot air inlet 21 and the hot air outlet 22 of the tub 20, the blowing fan 210 for forcibly blowing air to the hot air inlet 21 therein. This is installed.

In addition, spaced apart a predetermined interval along the circumference of the heater 40, a protective member 220 of a stainless steel material for protecting the tub 20 from the heat of the heater 40 is provided.

In addition, the protection member 220 is installed to surround both the upper, lower and side portions of the heater 40, the heat insulating material 240 is interposed between the protection member 220 and the tub 20.

On the other hand, in order to enable a more smooth flow of wash water and air between the heater 40 and the drum 30, it will be possible not to install the protective member 220 on the heater 40 above.

At this time, the heat insulator 240 is to increase the heat transfer blocking efficiency from the heater 40 to the tub 20, it can be selectively installed.

In addition, the protection member 220 has a plurality of outlet holes 221 are formed on the surface forming the upper portion of the heater 40 to enable the inflow and outflow of the wash water and air, and the opening 222 is formed at the front side. do.

Looking at the drying action of the dry-use drum washing machine according to this embodiment are as follows.

First, when power is applied to the blower fan 210, forced flow of air occurs along the drying duct 200 to the hot air inlet 21 of the tub 20.

In addition, the air introduced into the hot air inlet 21 is heated while passing through the heater 40, and the through hole 31 of the drum 30 is formed in the opening 222 of the protection member 220 formed in front. Inside).

Then, the laundry is heated while the heated air flows inside the drum 30 to evaporate moisture, and the hot air outlet 32 of the drum 30 and the hot air outlet of the tub 20 including the evaporated water. Flow through the 22 to the drying duct (200).

While passing through the drying duct 200, the coolant is supplied and the air is cooled, the water contained in the air is condensed and removed, and then the laundry is dried again through the process of flowing back into the heater 40.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

Referring to the effects of the combined drum washing machine according to the present invention described above are as follows.

First, since the heating of the washing water and the heating of the air for drying are driven by one heater without separately installing a heater in the drying duct, the structure of the drying duct is simplified, and the flow path can be shortened, and the cost can be reduced. Has the effect of.

Second, there is no need to install a device for heat dissipation of the heater in the drying duct, the installation of the drying duct is simplified, it is possible to reduce the space occupied by the drying duct on the upper side of the tub.                     

Third, the hot air flows through the through hole at the bottom of the drum without separately forming a hot air inlet, so that the hot air is evenly supplied to the drum while heating the laundry and the drum, thereby improving drying efficiency and drying performance.

Claims (15)

A cabinet constituting the drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, a hot air inlet formed at a lower rear portion thereof, and a hot air outlet formed at an upper portion thereof; A drum rotatably installed in the tub, the drum having a plurality of through holes for flowing in and out of the washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; Dryer drum washing machine comprising a: heater installed in the bottom between the inside of the tub and the drum so that the air introduced through the hot air inlet. The method of claim 1, Drying drum washing machine further comprises a protection member for protecting the tub from the heat generated from the heater around the heater. The method of claim 2, Drying drum washing machine, characterized in that the protective member is installed so as to surround both the top, bottom and side of the heater. The method of claim 2, Drying drum washing machine, characterized in that the protective member is installed to surround the lower side and the side except the upper portion of the heater. The method according to claim 3 or 4, Drying drum washing machine characterized in that the protective member can form a plurality of outflow holes so that the wash water and hot air can flow in and out. The method according to claim 3 or 4, Drying drum washing machine, characterized in that the opening is formed in the protective member so that the hot air introduced into the heater flows into the drum from the front. The method according to claim 3 or 4, Drying drum washing machine, characterized in that the insulating member for intercepting the heat of the heater can be interposed between the protective member and the tub. The method of claim 2, Drying drum washing machine characterized in that the front of the heater, a guide for guiding the hot air introduced into the heater to be introduced into the drum is installed. The method of claim 8, Drying drum washing machine, characterized in that the guide is formed integrally with the protective member. The method of claim 8, Drying drum washing machine, characterized in that the guide is formed of a separate object from the protective member. The method of claim 2, Drying drum washing machine, characterized in that the protective member is made of a stainless steel material. The method of claim 1, Dry tub drum washing machine characterized in that the hot air outlet of the tub is formed in the rear or front of the tub. The method of claim 1, Drying drum washing machine, characterized in that the hot air outlet of the tub is formed on the upper front of the tub. A cabinet constituting the drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, and a hot air inlet formed at a lower rear portion thereof, and a hot air outlet formed at an upper rear portion thereof; A drum rotatably installed in the tub, the drum having a plurality of through holes for flowing in and out of the washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; A heater installed at a bottom portion between the inside of the tub and the drum to allow air introduced through the hot air inlet to pass therethrough; Drying drum washing machine comprising a protection member: installed to surround the heater to protect the tub from the heat of the heater. A cabinet constituting the drum washing machine; A cylindrical tub installed inside the cabinet to store wash water, a hot air inlet formed at a lower rear side, and a hot air outlet formed at a front upper portion thereof; A drum rotatably installed in the tub, the drum having a plurality of apertures formed therein for outflow of washing water along a circumferential surface thereof; A drying duct connected to the hot air inlet and the hot air outlet of the tub to form a flow path for guiding air into the drum; A blowing fan installed in the drying duct to forcibly blow air toward the hot air inlet; A heater installed at a bottom portion between the inside of the tub and the drum to allow air introduced through the hot air inlet to pass therethrough; Drying drum washing machine comprising a protection member: installed to surround the heater to protect the tub from the heat of the heater.

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