KR102366400B1 - Laundry treatment apparatus - Google Patents

Abstract

A laundry treatment apparatus according to an aspect of the present invention comprises: a thermoelectric element in which an endothermic reaction is generated on one side by the Peltier effect and heat is generated on the other side; a first heat exchange unit in close contact with the one surface of the thermoelectric element and heat exchanged with air by receiving heat generated from the one surface of the thermoelectric element; a heat transfer member in close contact with the opposite surface of the thermoelectric element and conducting heat generated by the thermoelectric element; a second heat exchange part installed on the same side of the heat transfer member as the first heat exchange part and heat-exchanged with air by receiving heat generated from the opposite surface of the thermoelectric element through the heat transfer member; and A separation space for preventing the transfer of condensed water is formed between the first heat exchange part and the second heat exchange part.
The laundry treatment apparatus according to one aspect of the present invention can prevent the generated condensate from moving to the heat generating side of the thermoelectric module, and can quickly increase the generated condensate to a droppable size through the unevenness formed in the heat transfer unit. there is.

Description

Laundry treatment apparatus

The present invention relates to a laundry treatment apparatus in which a thermoelectric module is installed.

In general, a laundry treatment device is a device that processes laundry by applying physical and chemical actions to the laundry. Or a dryer that dries wet laundry by applying hot air.

A laundry treatment apparatus capable of drying clothes supplies high-temperature air (hot air) to clothes, and may be classified into an exhaust-type drying system and a circulation-type (condensing) drying system based on the flow method of the air.

The circulating drying system has a structure in which moisture is removed (dehumidified) from the air discharged from the tub, then heated again and re-supplied into the tub.

The exhaust drying system has a structure in which heated air is supplied into the tub, but the air discharged from the tub is discharged to the outside of the laundry treatment device without re-supplying it into the tub.

Republic of Korea Patent Registration 10-0373483

An object of the present invention to be solved is to provide a laundry treatment apparatus with high drying efficiency.

Another object of the present invention is to provide a laundry treatment apparatus in which a thermoelectric module having an efficient structure for drying is installed.

Another object of the present invention is to provide a laundry treatment apparatus having a structure capable of minimizing flow loss by simplifying a flow path structure.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A laundry treatment apparatus according to an aspect of the present invention comprises: a thermoelectric element in which an endothermic reaction is generated on one side by the Peltier effect and heat is generated on the opposite side; a first heat exchange unit in close contact with the one surface of the thermoelectric element and receiving heat generated from the one surface of the thermoelectric element to exchange heat with air; a heat transfer member in close contact with the opposite surface of the thermoelectric element and conducting heat generated by the thermoelectric element; a second heat exchange part installed on the same side of the heat transfer member as the first heat exchange part and heat-exchanged with air by receiving heat generated from the opposite surface of the thermoelectric element through the heat transfer member; and A separation space for preventing the transfer of condensed water is formed between the first heat exchange part and the second heat exchange part.

A laundry treatment apparatus according to another aspect of the present invention comprises: a thermoelectric element in which an endothermic reaction is generated on one side by the Peltier effect and heat is generated on the other side; a first heat exchange unit in close contact with the one surface of the thermoelectric element and receiving heat generated from the one surface of the thermoelectric element to exchange heat with air; a heat transfer member in close contact with the opposite surface of the thermoelectric element and conducting heat generated by the thermoelectric element; a second heat exchange part installed on the same side of the heat transfer member as the first heat exchange part and heat-exchanged with air by receiving heat generated from the opposite surface of the thermoelectric element through the heat transfer member; and At least one of the first heat exchange part and the second heat exchange part is formed with irregularities for collecting and dropping condensed water.

A laundry treatment apparatus according to another aspect of the present invention comprises: a thermoelectric element in which an endothermic reaction is generated on one side by the Peltier effect and heat is generated on the opposite side; a first heat exchange unit in close contact with the one surface of the thermoelectric element and receiving heat generated from the one surface of the thermoelectric element to exchange heat with air; a heat transfer member in close contact with the opposite surface of the thermoelectric element and conducting heat generated by the thermoelectric element; a second heat exchanging unit installed on the same side of the heat transfer member as the first heat exchanging unit and receiving heat generated from the opposite side of the thermoelectric element through the heat transmitting member to exchange heat with air; a separation space formed between the first heat exchange part and the second heat exchange part to prevent transfer of condensed water; a plurality of concave-convex drop units extending in the longitudinal direction of the heat transfer unit; a concave-convex groove formed between the concave-convex drop parts; and an inclined surface formed at an edge of the second heat exchange unit and guiding the movement direction of the condensed water.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The laundry treatment apparatus of the present invention has one or more of the following effects.

First, there is an advantage in that the generated condensed water can be prevented from moving to the heat generating side of the thermoelectric module.

Second, there is an advantage in that the condensed water generated through the unevenness formed in the heat transfer unit can be quickly raised to a droppable size.

Third, there is an advantage in that the condensed water generated through the inclined surface of the heat dissipation fin, the unevenness of the heat transfer member, and the arrangement of the heat dissipation fin can be quickly raised and dropped.

Fifth, there is an advantage that the load on the heater can be reduced by using a thermoelectric module when drying the fabric.

Sixth, there is an advantage in that the heating efficiency can be increased and drying energy can be reduced compared to the laundry treatment apparatus in which only a heater is installed.

Seventh, since the circulated or exhausted air passes sequentially through the heat absorbing side and the heat generating side of the thermoelectric module in a line, there is an advantage of minimizing air resistance.

Eighth, there is an advantage of improving the efficiency because both the energy generated from the heat absorbing and the heat generating side of the thermoelectric module can be used.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a washing machine according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating the internal structure of FIG. 1 .
FIG. 3 is a cross-sectional view of the thermoelectric module shown in FIG. 2 .
FIG. 4 is a partial perspective view of the thermoelectric module shown in FIG. 3 .
FIG. 5 is an enlarged perspective view of the drop unit shown in FIG. 4 .
6 is a cross-sectional view of a washing machine showing a condensing unit according to a second embodiment of the present invention.
7 is a plan view showing the inside of the condensing unit shown in FIG.
8 is a cross-sectional view showing a condensing unit according to a third embodiment of the present invention.
9 is a plan view showing a condensing unit of a condensing dryer according to a fourth embodiment of the present invention.
10 is a perspective view of the thermoelectric module and the condensation heat exchanger shown in FIG. 9 .
11 is a perspective view of a thermoelectric module and a condensation heat exchanger according to a fifth embodiment of the present invention.
12 is a perspective view showing the inside of the exhaust-type dryer according to the sixth embodiment of the present invention.
13 is a front view of the condensing unit shown in FIG.
14 is a block diagram of a condensing dryer in which a heat pump module according to a seventh embodiment of the present invention is installed.
15 is a partial perspective view showing irregularities according to an eighth embodiment of the present invention.
16 is a side view illustrating a second heat exchange unit according to a ninth embodiment of the present invention.
17 is a plan view of a second heat exchanging unit showing a heat dissipation fin according to a tenth embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining a washing machine and a method for controlling the same according to embodiments of the present invention.

1 is a perspective view of a washing machine according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing the internal structure of FIG. 1, FIG. 3 is a cross-sectional view of the thermoelectric module shown in FIG. 2, and FIG. 4 is shown in FIG. It is a partial perspective view of the thermoelectric module, and FIG. 5 is an enlarged perspective view of the drop unit shown in FIG. 4 .

The washing machine 100 according to an embodiment of the present invention includes a cabinet 10 forming an exterior, a tub 20 for accommodating wash water, and a tub disposed in the tub 20, and is rotated by accommodating a cloth therein. The drum 30, the driving unit 40 rotating the drum 30, a water supply unit (not shown) that receives wash water from an external water source and supplies it to the tub 20, and laundry detergent can be accommodated therein. , a detergent box 50 for mixing wash water with laundry detergent, a pump 60 for circulating the wash water by draining the wash water from the tub and supplying it back to the inside of the tub 20, and the tub 20 It is disposed inside and includes a heater module 70 for heating wash water, and a condensation unit 80 connected to the tub 20 and removing moisture while circulating air in the tub 20 .

The cabinet 10 forms the exterior of the washing machine 100 . A tub 20 is provided inside the cabinet 10 . The cabinet 10 is formed with a cloth entry hole 21 so that the cloth can enter and exit. A door 15 is rotatably provided on the front side of the cabinet 10 to enable opening and closing of the port entry/exit hole 21 .

A suspension such as a spring unit (not shown) and a damper (not shown) is installed between the tub 20 and the cabinet 10 , and the vibration of the tub 20 is transmitted to the cabinet 10 by the suspension. full up

Washing water is accommodated in the tub 20 .

And the drum 30 is disposed inside the tub (20).

The tub 20 may be provided with a water level sensor (not shown) for detecting the level of the wash water accommodated in the tub.

Laundry (hereinafter referred to as "cloth") may be put into the drum 30 through the inlet/out hole 21 . The cloth 30 is accommodated in the drum 30 and rotates.

The drum 30 is formed with a plurality of drum through-holes 33 so that the washing water passes. A lifter 32 may be disposed on the inner wall of the drum 30 to lift the fabric to a predetermined height when the drum 30 rotates. The drum 30 is rotated by receiving rotational force by the driving unit 40 .

The drum 30 is not arranged completely horizontally, but may be arranged at an angle such that the rear side of the drum 30 is lower than the inlet.

The detergent box 50 accommodates detergents such as laundry detergent, rinsing detergent or bleach. The detergent box 50 is preferably provided on the front side of the cabinet 10 to be withdrawable. The detergent in the detergent box 50 is mixed with the washing water when the washing water is supplied and introduced into the tub 20 . The detergent box 50 may be formed by dividing a portion in which the laundry detergent is accommodated, a portion in which the rinse detergent is accommodated, and a portion in which the bleach is accommodated.

The heater module 70 is disposed below the inner side of the tub 20 .

Power is applied to the heater module 70 to heat the wash water inside the tub 20 . In addition, in the drying mode, power is applied in the absence of washing water, and in this case, the air inside the tub 20 can be heated.

The condensing unit 80 is used in a washing machine having a circulating drying system.

The condensing unit 80 condenses moisture in the air contained in the air inside the tub 20 . The condensed moisture may be discharged to the outside through the pump 60 .

The condensation unit 80 improves drying efficiency by lowering moisture in the air of the tub in the drying mode.

And the condensing unit 80 does not discharge hot air to the outside of the cabinet 10 .

In this embodiment, the condensation unit 80 includes a condensation duct 82 connected to the tub 20 and a condensation fan 84 installed in the condensation duct 82 and circulating air in the tub 20 . and a thermoelectric module 110 installed in the condensation duct 82 for cooling and heating the flowing air, and a heater installed in the condensation duct 82 and heating the air passing through the thermoelectric module 110 . (86).

In this embodiment, the condensing unit 80 is installed above the tub 20 .

Unlike this embodiment, the condensing unit 80 may be installed on the back side or the bottom side of the tub 20 .

The condensation duct 82 has one end connected to the front side of the tub 20 , and the other end connected to the rear side of the tub 20 .

The heater 86 is a device that generates heat by the applied power, and may be a PTC heater.

As the condensing fan 84, various types of fans such as an axial fan or a turbo fan may be used.

The thermoelectric module (110, Thermoelectric Module) is a device in which a thermoelectric element is integrated in which heat is generated on one side and heat is generated on the other side due to the Peltier effect. In general, thermoelectric devices are manufactured by combining a P-type semiconductor and an N-type semiconductor. Since the structure of the thermoelectric element is a general technique to those skilled in the art, a detailed description thereof will be omitted.

In this embodiment, the thermoelectric module 110 cools and heats flowing air.

In particular, the flowing air flows in a straight line without being changed in the process of passing through the thermoelectric module 110 .

Therefore, the thermoelectric module 110 according to the present embodiment has a structure that minimizes resistance to flowing air. When the air resistance when passing through the thermoelectric module 110 is reduced, the load of the condensing fan 84 can be reduced, and operating noise can also be reduced.

The thermoelectric module 110 includes a first heat exchange part 112 for heat exchange in contact with air, and a second heat exchange part 114 for heat exchange in contact with air and disposed in a line with the first heat exchange part 112 . and a thermoelectric element 116 having one side in close contact with the first heat exchanging unit 112 and conducting heat to the first heat exchanging unit 112, the other side of the thermoelectric element 116, and the second and a heat transfer member 118 that connects the heat exchange unit 114 and conducts heat from the other side to the second heat exchange unit 114 .

The first heat exchange unit 112 and the second heat exchange unit 114 are disposed on one flow path. In the present embodiment, both the first heat exchange unit 112 and the second heat exchange unit 114 are disposed in the condensation duct 82 .

In particular, the first heat exchange unit 112 and the second heat exchange unit 114 are disposed on one side of the heat transfer member 118 .

Therefore, the flowing air exchanges heat with the first heat exchange unit 112 and the second heat exchange unit 114 disposed on one flow path.

The first heat exchange unit 112 and the second heat exchange unit 114 may be disposed at the same height.

The first heat exchange unit 112 and the second heat exchange unit 114 may be disposed on the same plane.

The first heat exchange part 112 and the second heat exchange part 114 may be arranged in a line so that air flows without a change in height.

The first heat exchange unit 112 and the second heat exchange unit 114 may be arranged in a straight line to minimize the air flow distance.

The line arrangement is not limited to being arranged in a straight line. For example, the line arrangement may be arranged in an arc shape along the surface of the tub or drum.

In addition, the line arrangement may be arranged to cross each other so as to have a predetermined angle between them.

In the present embodiment, the first heat exchange unit 112 and the second heat exchange unit 114 are arranged in a line in the side view, and are arranged in a straight line in the top view.

Unlike the present embodiment, any one of the first heat exchange unit 112 and the second heat exchange unit 114 may have a greater height. However, most of the air flowing through the condensation duct 82 can flow at the same height as the change in height is minimized.

Unlike the present embodiment, the first heat exchange unit 112 or the second heat exchange unit 114 may form a predetermined angle between them. However, most of the air flowing through the condensation duct 82 may flow in a straight line.

The first heat exchange part 112 and the second heat exchange part 114 according to the present embodiment are disposed in the longitudinal direction of the condensation duct 82 .

Here, the first heat exchange unit 112 may be located on the front side, and the second heat exchange unit 114 may be located on the front side.

In this embodiment, the first heat exchange unit 112 and the second heat exchange unit 114 are located below the heat transfer unit 118 , and air flows under the heat transfer unit 118 .

Both the first heat exchange part 112 and the second heat exchange part 114 are disposed on one side of the heat transfer part 118 .

The heat transfer unit 118 may be made of a metal material having good heat transfer efficiency, and may be made of copper or aluminum.

Also, the heat transfer unit 118 may be a heat pipe.

In this embodiment, heat is generated on the surface in contact with the first heat exchange unit 112 according to the current applied to the thermoelectric element 116 , and heat is absorbed on the surface in contact with the second heat exchange unit 114 .

The first heat exchange unit 112 is installed in close contact with one side 115 of the thermoelectric element 116 , and the second heat exchange unit 114 is in close contact with the opposite surface 117 of the thermoelectric element 116 . and installed

The second heat exchange unit 114 exchanges heat with flowing air to cool the air.

The first heat exchange unit 112 heats the air by heat exchange with the flowing air.

Unlike the present embodiment, heat is absorbed in the first heat exchange unit 112 and heat is generated in the second heat exchange unit 114 .

In this embodiment, the air passing through the condensation duct 82 passes through the second heat exchange unit 114, the first heat exchange unit 112, and the heater 86 in order.

Therefore, the air passing through the condensing duct 82 is cooled in the second heat exchange unit 114 , is heated in the first heat exchange unit 112 , and is heated in the heater 86 .

In particular, the second heat exchange unit 114 cools the air to condense moisture in the air.

The condensed water condensed while passing through the second heat exchange unit 114 may be discharged to the outside through the pump 60 after moving along the inner surface of the tub 20 .

In order to prevent the condensed water from moving to the first heat exchange part 112 , a separation space 113 for physically separating the first heat exchange part 112 and the second heat exchange part 114 is formed.

The separation space 113 is formed at a distance where the generated condensate cannot be moved through capillary action.

The separation space 113 is formed at a distance that the condensed water cannot move due to the wind pressure of the condensing fan 84 .

The separation space 113 is formed at a distance at which condensed water cannot be moved to the first heat exchange unit 112 due to capillary action or surface tension of the condensed water at the maximum wind speed of the condensing fan 84 .

When the condensed water moves from the second heat exchange unit 114 to the first heat exchange unit 112 , the temperature of the first heat exchange unit 112 is lowered to deteriorate performance.

In particular, when the temperature of the first heat exchange unit 112 is lowered, the drying performance for drying the fabric is deteriorated, and the amount of heat generated by the heater module 70 or the heater 86 must be increased.

The air that has passed through the second heat exchange unit 114 is dehumidified and heated again while passing through the first heat exchange unit 112 .

And while passing through the heater 86, it is heated to an appropriate temperature for drying the fabric.

The thermoelectric module 110 as in this embodiment is disposed on one flow path and not only dehumidifies the flowing air, but also heats the air with waste heat discarded from the thermoelectric module 110 to improve power efficiency. there is.

In addition, since the air cooled in the dehumidification process exchanges heat with the first heat exchange unit 112 , there is an effect of constantly maintaining the performance of the thermoelectric element 116 .

In addition, in the present embodiment, since the air is heated using the heat discarded as waste heat from the thermoelectric element 116 , the load on the heater module 70 or the heater 86 used in the drying mode can be reduced.

And the second heat exchange part 114, the first heat exchange part 112 and the heater 86 are installed in a line in the condensation duct 82, and the flow path is branched or laminated in the process of dehumidifying-heating-heating the air. Because it is not structured, air resistance can be minimized.

That is, when two or more flow paths are branched or two or more flow paths are combined into one, vortex or turbulence is generated, and a dead space in which air does not flow is formed, resulting in air resistance or flow loss.

In this embodiment, since the air undergoes a process of dehumidification-heating-heating while moving along one flow path, the flow resistance of the air is minimized, thereby minimizing the load on the condensing fan 84 .

Meanwhile, although the condensing unit 80 is disposed on the upper side of the tub 20 , it may be disposed at various positions such as the side surface, the bottom surface, and the rear surface of the tub 20 , unlike this embodiment.

Therefore, a condensed water drop structure capable of more effectively dropping the condensed water generated in the second heat exchange unit 114 is formed.

In this embodiment, an inclined surface 132 is formed on the outer edge of the second heat exchange unit 114 so that the condensed water flows down effectively.

In the present embodiment, since the second heat exchange unit 113 includes a plurality of heat dissipation fins 131 , the inclined surface 132 is formed on the heat dissipation fin 131 .

The heat dissipation fin 131 is formed of a metal material having high thermal conductivity.

The plurality of heat dissipation fins 131 are disposed in parallel.

In particular, when the thermoelectric module 110 is arranged in the vertical direction and the second heat exchange unit 114 is located at the lower side, condensed water can be effectively dropped through the inclined surface 132 .

That is, the thermoelectric module 110 may be disposed in the direction of gravity.

The heat exchange unit in which the condensed water is formed may be located below the gravity direction.

In addition, a condensed water drop structure is also formed in the heat transfer unit 118 .

The heat transfer part 118 has an unevenness 133 formed on the end side where the second heat exchange part 114 is disposed.

The unevenness 133 may be connected to the inclined surface 132 .

The concavo-convex 133 includes a concave-convex drop portion 134 extending in the longitudinal direction of the heat transfer unit 118 and a concave-convex groove 135 formed between the concave-convex drop unit 134 .

The concave-convex groove 135 may further include a concave-convex inclined surface 136 for guiding the condensed water.

The concave-convex drop part 134 and the heat dissipation fin 131 may be disposed to correspond to each other.

In this case, the concave-convex groove 135 is positioned between the heat dissipation fins 131 .

Unlike the present embodiment, the concave-convex drop portion 134 may be formed to have a gradually thinner thickness.

The concave-convex inclined surface 136 is formed to reduce the thickness of the heat transfer part 118 .

Therefore, the surface area of the concave-convex groove 135 can be greatly increased by the two concave-convex drop parts 134 and the concave-convex inclined surface 136 .

After the condensed water generated by the second heat transfer unit 114 moves to the concave-convex 133 along the inclined surface 132 , the condensed water may be aggregated into large water droplets by surface tension in the concave-convex groove 135 . When the condensed water is agglomerated into large water droplets, it is easy to drop by its own weight.

In the present embodiment, the unevenness 133 is formed on the heat transfer part, but unlike the present embodiment, it may be formed on the heat dissipation fin 131 .

In addition, although the heat transfer part 118 and the heat dissipation fin 131 are separately manufactured, unlike this embodiment, they may be manufactured integrally.

6 is a cross-sectional view of the washing machine showing the condensation unit 80 according to the second embodiment of the present invention, and FIG. 7 is a plan view showing the inside of the condensation unit shown in FIG. 6 .

Unlike the first embodiment, the condensation unit 80 of the washing machine according to the present embodiment is characterized in that it is arranged to blow air into the drum 30 through the condensation fan 84 .

Therefore, the condensing fan 84 is installed at the outlet side of the condensing duct 82 , and the condensing fan 84 flows air into the drum 30 .

The air sucked in from the rear side of the condensation duct 82 flows into the tub 20 through the thermoelectric module 110 and the heater 86 .

Since the condensation fan 84 is installed on the outlet side of the condensation duct 82 , there is an advantage in that heated air can be more strongly discharged into the tub 20 .

As the air inside the tub 20 is effectively circulated, moisture in the air can be removed more smoothly, so that the drying speed of the fabric can be improved.

In addition, if the drying speed of the fabric is improved, power consumption of the heater 86 and the heater module 70 used for drying can be reduced.

Also in this embodiment, the air sucked into the condensation duct 82 goes through a process of dehumidification-heating-heating.

So, as in the first embodiment, in the condensation duct 82 , the second heat exchange unit 114 - the first heat exchange unit 112 - the heater 86 are arranged in a line.

Hereinafter, since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

8 is a cross-sectional view showing a condensing unit according to a third embodiment of the present invention.

A plurality of thermoelectric modules 110 according to the present embodiment are installed to face each other.

In particular, the heat transfer members 118 are disposed on both sides, and air flows between the heat transfer members 118 .

A first heat exchange unit 112 and a second heat exchange unit 114 may be disposed to face each other between the heat transfer members 118 .

In this embodiment, since the flowing air flows between the heat shear members 118 , there is an advantage in that the flowing air is more reliably heat-exchanged with the first heat exchange unit 112 and the second heat exchange unit 114 .

The thermoelectric modules 110 disposed to face each other may be disposed in an up-down direction, may be disposed horizontally, or may be disposed to be inclined.

Hereinafter, since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

9 is a plan view showing the condensation unit of the condensing dryer according to the fourth embodiment of the present invention, and FIG. 10 is a perspective view of the thermoelectric module and the condensation heat exchanger shown in FIG. 9 .

In this embodiment, the thermoelectric module 110 is installed in the condensing dryer.

The condensing dryer circulates the air inside the drum and dehumidifies the moisture in the circulated air.

Unlike the washing machine, the dryer has only a drum (not shown) installed without a tub.

Since the drum installed in the dryer does not require washing water to pass through, the drum through hole 33 is not formed as in the first embodiment.

The dryer according to this embodiment is characterized in that the circulated air is first heat-exchanged with the condensation heat exchanger 120 and then heat-exchanged with the thermoelectric module 110 .

The condensing unit 180 according to the present embodiment may be disposed on the lower side of the drum.

The condensing unit 180 according to the present embodiment may be located at the lower side of the cabinet 10 .

The condensing unit 180 according to this embodiment has a first heat exchange passage 121 through which external air flows and a second heat exchange passage 122 through which air in the drum flows, and exchanges heat between the outside air and the air in the drum. a condensing heat exchanger (120) for cooling, a first fan (181) for flowing the outside air to the first heat exchange passage (121), and a second fan for flowing the air from the drum into the second heat exchange passage (122) 182, a condensation motor 183 for driving the first fan 181 and the second fan 182, and a thermoelectric module 110 that exchanges heat with the air that has passed through the second heat exchange passage 122; , a heater 86 for heating the heat exchanged air while passing through the thermoelectric module 110 .

The condensation heat exchanger 120 is for exchanging heat between the air circulated in the drum and the external air. In the present embodiment, a first heat exchange passage 121 through which external air flows is formed in one layer, and a second heat exchange passage 122 is disposed above or below the first heat exchange passage 121 .

The first heat exchange passage 121 and the second heat exchange passage 122 are stacked.

The first heat exchange passage 121 and the second heat exchange passage 122 are formed so that the air flow directions cross each other.

The air in the drum flowing through the second heat exchange passage 122 loses heat to the outside air to generate condensed water.

That is, the condensation heat exchanger 120 cools the air in the drum through the external air to dehumidify the moisture.

The thermoelectric module 110 has the same structure as the first embodiment.

In this embodiment, the thermoelectric module 110 is disposed between the condensation heat exchanger 120 and the heater 86 .

Here, the second heat exchange passage 122 and the second heat exchange unit 114 are arranged in a line.

The air passing through the second heat exchange passage 122 flows in a straight line toward the second heat exchange unit 114 .

The thermoelectric module 110 is arranged in the order of the second heat exchange unit 114 (heat absorbing) - the first heat exchange unit 112, similar to the first embodiment.

Therefore, the second heat exchange unit 114 dehumidifies the air that has passed through the condensation heat exchanger 120 again.

The temperature of the second heat exchange unit 114 is lower than that of the outside air.

The air in the drum is primarily dehumidified while passing through the condensing heat exchanger 120 , and is secondarily dehumidified while passing through the second heat exchange unit 114 (heat absorption).

The second heat exchange unit 114 may be cooled to a lower temperature than that of the condensation heat exchanger 120 .

Here, since the air that has passed through the second heat exchange passage 122 of the condensation heat exchanger 120 flows to the second heat exchange unit 114 in a straight line, the flow resistance of the air can be minimized.

In addition, the secondary dehumidified air is primarily heated while passing through the first heat exchange unit 112 .

The air that has passed through the first heat exchange unit 112 is secondarily heated while passing through the heater 86 .

The heater 86 may be controlled to a higher temperature than the first heat exchange unit 112 .

The air passing through the heater 86 is supplied to the drum, and the fabric is dried.

In this embodiment, the condensation motor 183 drives the first fan 181 and the second fan 182 at the same time.

Therefore, when the condensing motor 183 is driven, the first fan 181 and the second fan 182 are driven to simultaneously flow external air and internal air.

Although not described separately, parts such as a duct (not shown) may be installed to flow external air from the first fan 181 to the condensation heat exchanger 120 .

In addition, a duct may be installed to flow air between the second fan 182 and the condensation heat exchanger 120 .

Hereinafter, since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

11 is a perspective view of a thermoelectric module and a condensation heat exchanger according to a fifth embodiment of the present invention.

Two thermoelectric modules 110 according to the present embodiment are disposed to face each other in the vertical direction.

Also in this embodiment, the second heat exchange unit 114 is located on the condensation heat exchanger 120 side.

Since a plurality of the second heat exchange units 114 are disposed, it is possible to increase the amount of secondary dehumidification of air.

In addition, since the two thermoelectric elements 116 cool each of the second heat exchange units 114 , it is possible to more actively control the amount of dehumidification of the air.

For example, when the amount of moisture evaporated from the cloth is large, both thermoelectric modules 110 may be operated, and when the amount of evaporated moisture is small, only one thermoelectric module 110 may be operated.

The two first heat exchange units 112 may be disposed to contact each other, and the two second heat exchange units 114 may be disposed to contact each other.

In this case, even when only one thermoelectric module 110 is operated, heat may be conducted to the thermoelectric module disposed to face each other through heat conduction. Therefore, even when one thermoelectric module 110 is operated, heat is transferred through heat conduction, and an area in contact with air is increased.

Hereinafter, since the rest of the configuration is the same as that of the fourth embodiment, a detailed description thereof will be omitted.

12 is a perspective view showing the inside of the exhaust dryer according to the sixth embodiment of the present invention, and FIG. 13 is a front view of the condensing unit shown in FIG. 12 .

This embodiment is an exhaust type dryer.

The exhaust type dryer sucks in the outside air, heats it to a predetermined temperature, supplies the heated air to the inside of the drum 30 to dry the fabric, and the air inside the drum is sucked and then discharged to the outside again.

In this embodiment, the air discharged from the inside of the drum 30 is dehumidified and then discharged to the outside of the cabinet (not shown).

The thermoelectric module 110 according to the present embodiment is disposed on the rear side of the drum 30 .

Air is dehumidified while passing through the second heat exchange unit 114 , and is heated while passing through the first heat exchange unit 112 .

The air that has passed through the thermoelectric module 110 may be supplied to the inside of the drum 30 after being heated by the heater 186 .

The heater 186 supplies heated air to the inside of the drum 30 through the axial center side of the drum 30 .

Reference numeral 11 denotes a rear panel 11 constituting the cabinet 10 , and a guide 12 for guiding air to the thermoelectric module 110 and the heater 86 may be formed on the rear panel 11 .

Here, the thermoelectric module 110 is disposed in the direction of gravity.

The second heat exchange unit 114 of the thermoelectric module 110 is located below the first heat exchange unit 112 .

Therefore, the concavo-convex 133 is located at the lowermost end of the thermoelectric module 110 .

Hereinafter, since the rest of the configuration is the same as that of the fourth embodiment, a detailed description thereof will be omitted.

14 is a block diagram of a condensing dryer in which a heat pump module according to a seventh embodiment of the present invention is installed.

This embodiment is a condensation type dryer in which the heat pump module 140 and the thermoelectric module 110 are installed.

While the air in the drum 30 is circulated, it is dehumidified and heated by the thermoelectric module 110 and the heat pump module 140 .

The heat pump module 140 includes a first heat exchanger 142 , a second heat exchanger 144 , an expansion valve 143 , and a compressor 141 , and may operate in a heat pump cycle.

When operating as a cooling cycle, the first heat exchanger 142 operates as a condenser, and the second heat exchanger 144 operates as an evaporator.

That is, the refrigerant discharged from the compressor 141 is condensed into a liquid refrigerant in the first heat exchanger 142 and heat is emitted to the surroundings.

The liquid refrigerant condensed in the first heat exchanger 142 is expanded by the expansion valve 143 to be miniaturized.

The refrigerant expanded by the expansion valve 143 is evaporated into a gas in the second heat exchanger 144 and absorbs heat from the surroundings.

The vapor phase refrigerant evaporated in the second heat exchanger 144 flows to the compressor 141 and repeats the above-described process.

Therefore, the second heat exchanger 144 cools the air discharged from the condensing fan 84 and dehumidifies the moisture in the air.

The first heat exchanger 142 heats the air that has passed through the thermoelectric module 110 through the heat of condensation.

That is, the air discharged from the condensing fan 84 flows in the order of the second heat exchanger 144 , the thermoelectric module 110 , the first heat exchanger 142 , and the heater 86 .

The thermoelectric module 110 is disposed to absorb and dehumidify flowing air, and then heat it. Therefore, in the thermoelectric module 110 , the second heat exchanger 114 is disposed on the side of the second heat exchanger 144 used as an evaporator, and the first heat exchanger 142 is used as a condenser. ) is placed on the side.

Therefore, the air discharged to the condensing fan 82 is first dehumidified in the second heat exchanger 144 , and then is secondarily dehumidified in the second heat exchange unit 114 .

In addition, the first heat exchanger 112 is heated primarily, the first heat exchanger 142 is heated secondary, and the heater 86 is thirdly heated.

After being heated for the third time to a predetermined temperature by the heater 86 , air flows into the drum 30 .

The dryer according to the present embodiment can use both heat absorption and heat generated by the heat pump module 140 and the thermoelectric module 110 , thereby reducing power consumption and reducing the load on the heater 86 . there is

Hereinafter, since the rest of the configuration is the same as that of the fourth embodiment, a detailed description thereof will be omitted.

15 is a partial perspective view showing irregularities according to an eighth embodiment of the present invention.

In the present embodiment, the unevenness 233 is formed such that the area of the uneven drop portion 234 is gradually reduced.

In this embodiment, the concave-convex drop part 234 may be formed in a shape in which the width of the short side is reduced. The concave-convex drop portion 234 may be formed in a trapezoidal shape.

In addition, the concave-convex groove 235 may be formed in a wedge shape.

The concave-convex groove 235 may be formed in a shape in which the width of the short side is increased.

Hereinafter, since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

16 is a side view illustrating a second heat exchange unit according to a ninth embodiment of the present invention.

In this embodiment, an absorption member 137 capable of absorbing condensed water is installed.

The absorbing member 137 can collect and increase the size of the condensed water more quickly.

The absorbent member 137 is preferably disposed on the concave-convex drop portion 134 .

The absorbent member 137 may be made of a material having many pores, such as a sponge.

A hydrophilic coating may be applied instead of the absorbent member 137 .

Hereinafter, since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

17 is a plan view of a second heat exchanging unit showing a heat dissipation fin according to a tenth embodiment of the present invention.

In this embodiment, instead of the unevenness, the condensate can be collected by forming a difference in length on the short side of the heat dissipation fin.

That is, the ends of the heat dissipation fins 131 may be arranged in a zigzag manner.

The condensate collecting space 138 in which the condensed water is collected is formed on the end side of the heat dissipation fin 131 due to the stages arranged in a zigzag manner.

Hereinafter, since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. should be interpreted

10: cabinet 20: tub
30: drum 40: driving unit
50: detergent box 60: pump
70: heater module 80: condensing unit
82: condensing duct 84: condensing fan
86: heater 110: thermoelectric module
112: first heat exchange unit 114: second heat exchange unit
116: thermoelectric element 118: heat transfer member
120: condensing heat exchanger 121: first heat exchange passage
122: second heat exchange path 131: heat dissipation fin
132: inclined surface 133: uneven
134: uneven drop part 135: uneven groove
136: uneven slope 137: absorption member
138: condensate collecting space 140: heat pump module
141: compressor 142: first heat exchanger
143: expansion valve 144: second heat exchanger
181: first fan 182: second fan
183: condensing motor

Claims (21)

a thermoelectric element in which an exothermic reaction occurs on one side and an endothermic reaction occurs on the other side by the Peltier effect;
a first heat exchange unit connected to the one surface of the thermoelectric element and exchanging heat with external air;
and a second heat exchange unit disposed below the first heat exchange unit and heat-exchanged with external air;
a heat transfer member connecting the opposite surface of the thermoelectric element to the second heat exchange part and conducting heat between the thermoelectric element and the second heat exchange part; and
and an air flow passage passing through the second heat exchange unit and the first heat exchange unit in sequence. The method according to claim 1,
The first heat exchange unit and the second heat exchange unit are arranged in a line. delete delete The method according to claim 1,
At least one of the first heat exchange part and the second heat exchange part is provided with an inclined surface for guiding the condensed water. The method according to claim 1,
The heat transfer member is elongated in the arrangement direction of the first and second heat exchange units, and the condensed water is collected and dropped on the end side adjacent to the second heat exchange unit. delete 7. The method of claim 6,
The irregularities are:
first and second concave-convex drop portions extending in the longitudinal direction of the heat transfer member;
A laundry treatment apparatus including an uneven groove formed between the first and second uneven drop parts. 9. The method of claim 8,
The concave-convex groove is a laundry treatment device having a concave-convex inclined surface for guiding the condensed water. 10. The method of claim 9,
The concave-convex inclined surface is formed to have a thinner thickness as it goes away from the second heat exchange unit. 9. The method of claim 8,
The laundry treatment device is provided with an absorbent member for absorbing condensed water in the uneven drop portion. 9. The method of claim 8,
The concave-convex drop part is formed to have a reduced cross-sectional area as the distance from the second heat exchange part increases. 9. The method of claim 8,
The concave-convex groove is a laundry treatment device formed in a wedge shape. The method according to claim 1,
At least one of the first and second heat exchange parts is composed of a plurality of heat dissipation fins,
The ends of the heat dissipation fins are disposed in a zigzag form. a drum in which the carriage is housed;
a guide disposed outside the drum and providing a circulation passage connected to the inside of the drum;
a fan installed inside the guide and a motor driving the fan; and
and a thermoelectric module installed inside the guide to dehumidify and heat air passing through the guide;
The thermoelectric module includes:
a thermoelectric element in which an exothermic reaction occurs on one side and an endothermic reaction occurs on the other side by the Peltier effect;
a first heat exchange unit connected to the one surface of the thermoelectric element and exchanging heat with external air;
a second heat exchanging unit disposed below the first heat exchanging unit and exchanging heat with external air; and
a heat transfer member connecting the opposite surface of the thermoelectric element to the second heat exchange part and conducting heat between the thermoelectric element and the second heat exchange part; and
The circulation passage sequentially passes through the second heat exchange unit, the first heat exchange unit, and the inside of the drum. delete delete a thermoelectric element in which an exothermic reaction occurs on one side and an endothermic reaction occurs on the other side by the Peltier effect;
a first heat exchange unit connected to the one surface of the thermoelectric element and exchanging heat with external air;
a heat transfer member connected to the opposite surface of the thermoelectric element and conducting heat to the thermoelectric element;
a second heat exchange part connected to a surface of the heat transfer member facing the first heat exchange part and exchanged heat with external air; and
Containing the unevenness formed on the short side of the heat transfer member,
The irregularities are:
first and second concave-convex drop parts extending in an arrangement direction of the first and second heat exchange parts;
and a concave-convex groove formed between the first and second concave-convex drop parts,
The concave-convex groove is a laundry treatment device that becomes narrower toward the outside of the heat transfer member. delete 19. The method of claim 18,
At least one of the first heat exchange part and the second heat exchange part is provided with an inclined surface for guiding the moving direction of the condensed water. a thermoelectric element in which an exothermic reaction occurs on one side and an endothermic reaction occurs on the other side by the Peltier effect;
a first heat exchange unit connected to the one surface of the thermoelectric element and exchanging heat with external air;
a heat transfer member connected to the opposite surface of the thermoelectric element and conducting heat to the thermoelectric element;
a second heat exchange part connected to a surface of the heat transfer member facing the first heat exchange part and exchanged heat with external air;
an air flow passage passing through the second heat exchange unit and the first heat exchange unit in sequence; and
and an inclined surface formed at an edge of the second heat exchange unit opposite to the first heat exchange unit and guide the moving direction of the condensed water.

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