JP2017077279A - Drum type washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which reduces manufacturing cost, which saves energy and which secures safety.SOLUTION: In a heater unit 17, a substantially cylindrical water supply cylindrical part 38 in which water from a water supply valve 20 passes, at an upper part, and a heater cylindrical part 39 in which a heater 35 is internally provided, at a lower part, are integrally formed. In a washing step, by conducting electricity in the heater 35, the water passing inside the water supply cylindrical part 38 of the heater unit 17 is made to be hot water and it is supplied to a water tub 2. In a drying step, by conducting electricity in the heater 35, high temperature air radiated from a fin 32 provided at a lower part of the heater cylindrical part 39 of the heater unit 17 is made to be hot air, and it is circulated into the water tub 2 from a rotary drum 3. Thereby, as one heater has a hot water function for improving washing performance and a hot water function for drying, manufacturing cost is reduced, energy is saved and safety can be secured.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drum-type washing and drying machine that performs a washing, rinsing, dehydration, and drying operation by rotationally driving a rotating drum that contains laundry.

  Conventionally, this type of drum-type washing and drying machine is equipped with a dedicated heater for warming the washing water to enhance the washing performance, and also equipped with a dedicated drying heater to blow warm air into the aquarium. A configuration for warming laundry has been proposed (see, for example, Patent Document 1).

  FIG. 5 is a longitudinal sectional view of the drum type washing and drying machine described in Patent Document 1, and FIG. 6 is a longitudinal sectional view showing a circulating air flow path for warm air of the drum type washing and drying machine.

  In FIG. 5, an outer tub 56 having a first opening 53 a for entering and exiting clothing is elastically supported by a suspension structure (not shown) in the casing 51, and the outer tub 56 includes a first A second opening 65a that opens to the same portion as the opening and a rotating drum 54 having a rotating shaft inclined in the horizontal direction or the horizontal direction are rotatably included. The rotating drum 54 is rotationally driven by a drive motor 57 provided on the outer bottom of the outer tub 56. In addition, water supply means 59 for supplying water into the outer tub 56 is provided.

  The outer tub 56 includes a water intake 60 into which washing water that rotates in the outer tub 56 in accordance with the rotation of the rotary drum 54, a first circulation water channel 62 that communicates with the water intake 60, and a second circulation channel 62. A circulation water channel 66, a third circulation water channel 67, a fourth circulation water channel 68, and a discharge port 72 that communicates with the other end of the circulation water channel and discharges washing water into the rotating drum are provided. In addition, a heater 50 for warm water for heating the washing water is provided at the bottom of the outer tub 56, and the drive motor 57, the water supply means 59, the heater 50 for warm water, etc. are controlled on the front side of the upper portion of the casing 51 for washing A control means 55 for sequentially controlling each process such as rinsing and dehydration is provided.

  With this configuration, the hot water is discharged from the discharge port 72 into the rotating drum 54 with great force. The discharged water is poured into the laundry every time the rotary drum 54 rotates, and the cleaning performance can be improved.

  In FIG. 6, a fan case 86 in which a warm air heater 84 and a blower fan 85 are housed is provided above the housing 51. By rotating the blower fan 85, an air flow is generated in the circulation blower path, and the air in the rotary drum 54 passes through the water passage hole 54 g provided in the side wall of the rotary drum 54, and the body of the outer tub 56. One end of the hot air intake 87 is exhausted to a heat exchange path 88 communicating with the hot air intake 87. The air containing moisture is dehumidified in the heat exchange path 88 and further sent to the fan case 86 via the first bellows hose 89 communicating with the other end of the heat exchange path 88.

  The air heated by the hot air heater 84 in the fan case 86 passes through the hot air blowing path 91 via the second bellows hose 90 having one end communicating with the fan case 86 by the blower fan 85, and further the outer tub 56. The air is blown again to the laundry in the rotating drum 54 through the back surface through-hole 54h provided on the back surface, and drying of the laundry proceeds.

JP 2007-117135 A

  However, the conventional configuration requires a dedicated warm water heater for improving the cleaning performance and a warm air heater for drying, and since the warm water heater is provided in the water tank, It is easy to be deteriorated by repeated immersion in the washing liquid for a long time or drying of the electrolyte in which the agent or the like is dissolved, and much electric power is required to warm the washing liquid supplied to the water tank. In addition, the heater for hot air, which is generated when the laundry drum is driven by driving the rotating drum in the washing process, has detergent bubbles that enter the hot air blowing path and may cause insulation deterioration due to long-term use. There were problems with durability, power saving performance and safety.

  The present invention solves the above-mentioned conventional problems, and is a drum type that reduces manufacturing costs, saves energy, and ensures safety by adopting a configuration in which a single heater has a hot water function and a hot air function. It aims to provide a washer-dryer.

  In order to solve the above-described conventional problems, a drum-type washing and drying machine of the present invention includes an outer box, a water tank that is supported in a vibration-proof manner inside the outer box, and an inner container that is rotatably included in the water tank. A rotating drum, a motor for rotating the rotating drum, a water supply path for supplying water via a water supply valve for supplying water to the water tank, and a fan for blowing hot air for drying into the rotating drum through the hot air blowing path A fan, a circulation path that communicates with the bottom of the water tank and circulates air via the blower fan, a heater unit that forms a part of the water supply path and is also incorporated into the hot air blower path, the motor, And a control device for controlling a water supply valve, a heater unit, a blower fan, etc., and sequentially controlling a series of processes such as washing, rinsing, dehydration, and drying. The heater unit includes a heater composed of a PTC element. A heater portion and a water supply portion made of a heat conductor that communicates with the water supply path on the side surface in the longitudinal direction of the heater portion, and a heat radiating fin is integrally formed on the side surface of the heater portion facing the water supply portion. The control device supplies the water passing through the water supply path to warm water by supplying power to the heater in the washing process, and supplies the heater to the heater in the drying process. The high-temperature air radiated from the fins provided on the side surface of the heater portion is circulated from the rotary drum into the water tank as hot air.

  Thus, by providing a single heater with a hot water function for improving cleaning performance and a hot air function for drying, it is possible to reduce manufacturing costs, save energy, and ensure safety.

  The drum type washing / drying machine of the present invention has a configuration in which a single heater has a hot water function for improving washing performance and a hot air function for drying, thereby reducing manufacturing costs, energy saving and safety. Sex can be secured.

The longitudinal cross-sectional view of the drum type washing-drying machine in the 1st Embodiment of this invention Perspective view of the heater of the drum type washing and drying machine Sectional view of the heater of the drum type washing and drying machine The longitudinal cross-sectional view of the drum type washing-drying machine in the 2nd Embodiment of this invention Longitudinal sectional view of a conventional drum-type washing and drying machine Longitudinal sectional view showing the circulating air flow path of the hot air of the drum type washing and drying machine

  A first invention includes an outer box, a water tank that is supported in a vibration-proof manner inside the outer box, a rotating drum that is rotatably included in the water tank, and a motor that rotationally drives the rotating drum; A water supply path for supplying water through a water supply valve for supplying water to the water tank, a blower fan for blowing hot air for drying into the rotary drum through a hot air blower path, and a bottom part of the water tank for passing through the blower fan. Control and wash the circulation path for circulating air, the heater unit that forms part of the water supply path and is also incorporated into the hot air blowing path, the motor, the water supply valve, the heater unit, the blower fan, etc. A control device that sequentially controls a series of processes such as rinsing, dehydration, and drying, and the heater unit includes a heater unit that includes a heater composed of a PTC element, and a longitudinal side surface of the heater unit. It has a water supply portion made of a heat conductor that communicates with the water path, and is integrally formed with a heat radiating fin on the side surface of the heater portion facing the water supply portion, and the controller energizes the heater during the washing process. As a result, the water passing through the water supply path is heated and supplied to the water tank, and in the drying process, the heater is energized to dissipate heat from the fins provided on the side surface of the heater section. Manufactured by providing hot water function for improving cleaning performance and hot air function for drying in one heater by adopting a configuration that circulates hot air as hot air from the rotating drum into the water tank. Costs can be reduced, energy can be saved, and safety can be ensured.

  The second invention includes a circulation pump that circulates wash water in the water tank, and a water passage pipe that communicates with the circulation pump and connects to a water supply portion of the heater unit. In particular, the control device includes a heater in the washing process. By energizing the heater, the washing water from the circulation pump passing through the water supply unit is circulated into the water tank as warm water, and in the drying process, the heater is energized to the side surface in the longitudinal direction of the heater unit. By using hot air radiated from the provided fins as hot air to circulate from the rotating drum into the water tank, one heater has a hot water function for improving cleaning performance and a hot air function for drying. By providing this, manufacturing costs can be reduced, energy can be saved, and safety can be ensured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a drum type washing and drying machine according to a first embodiment of the present invention, FIG. 2 is a perspective view of a heater of the drum type washing and drying machine, and FIG. 3 is a drum type washing and drying machine. It is sectional drawing of a heater.

  In FIG. 1, a water tank 2 is supported in a vibration-proof manner by an anti-vibration device 8 inside an outer box 1, and a rotating drum 3 is rotatably disposed in the water tank 2. 2 is rotationally driven by a motor 6 attached to the back surface of 2 from the outside.

  The water supply system can supply water into the aquarium 2 in a timely manner by opening and closing a water supply valve 20 disposed at the rear of the outer box 1, and the water temperature of the wash water 12 supplied using the water supply can be supplied near the bottom of the aquarium 2. It can detect with the temperature sensor 19 arrange | positioned.

  Further, the water supply valve 20 and one of the water supply cylindrical portions 38 (described later in FIGS. 2 and 3) of the heater unit 17 are connected by a water supply pipe 40. The other of the water supply tubular portion 38 is connected to the discharge pipe 41, and the water supplied from the water supply valve 20 is supplied from the discharge pipe 41 to the water tank 2 through the water supply tubular portion 38 of the heater unit 17.

In addition, the amount of washing water supplied into the water tank 2 can be detected in a plurality of stages by a water level sensor 29 that detects the water level in the water tank 2 by water pressure. The multi-stage water level includes a water level indicated by a normal washing water level (T) and a low water level (W) during warm water washing that increases the temperature of the washing water in order to improve the washing performance.

  The drainage system drains to the outside from the lint filter 16 via the drainage path 5 when necessary, such as during the washing process, at the end of the washing process, or at the end of the rinsing process, by opening and closing the drain valve 4 provided at the bottom of the water tank 2. It can be done.

  The rotating drum 3 is directly connected to a motor 6 fixed to the outer bottom portion of the water tank 2 by a rotating shaft 15 disposed so as to be inclined substantially horizontally or downward from the horizontal direction. In the rinsing process, the laundry 9 put into the rotary drum 3 from the front door portion 22 is stirred and washed.

  The drying system is connected to a circulation path 18 having a dehumidifying heat exchange path 23 for a drying function, and a hot air blowing path 10 having a heater unit 17 and a blowing fan 7 above the tank 2, outside the rear side of the water tank 2. Piping. The heater unit 17 uses a semiconductor heater or the like using a PTC element, and prevents an excessive temperature rise due to air volume fluctuations.

  The flow of the drying circulating air in the drying process is sucked from the suction opening 24 at the bottom of the water tank 2, heat-exchanged and dehumidified in the circulation path 18, heated and blown in the warm air blowing path 10, The laundry 9 in the rotating drum 3 is dried by a circulating wind operation that returns to the inside 2.

  In addition to the water supply path from the water supply valve 20 to the inside of the water tank 2, a second water supply path 27 is piped above the dehumidifying heat exchange path 23 in the circulation path 18 so that the water supply can be discharged into the circulation path 18. ing.

  Further, an electrode sensor 26 for detecting the presence or absence of the conductive liquid is disposed in the vicinity of the upper portion of the suction opening 24 below the circulation path 18 so as to detect the state in the circulation path.

  Moreover, the control apparatus 14 arrange | positioned by the upper front side of the outer case 1 according to the input setting from the input display part 21 according to mode setting or a control program, the motor 6, the water supply valve 20, the drain valve 4, and the heater unit. 17, The blower fan 7 and the like are controlled to sequentially control a series of steps of washing, rinsing, dehydration and drying.

  2 and 3, the heater unit 17 is formed by integrally forming two cylindrical portions, and the water supply cylindrical portion 38, which is one cylindrical portion covered with a heater shell 31 made of a heat conductor, is As described above, one end is connected to the water supply pipe 40 and the other end is connected to the discharge pipe 41 so that the water supply from the water supply valve 20 passes.

  Further, in the heater cylindrical portion 39 which is the other cylindrical portion, both sides of the heater 35 made of the PTC heater element are sandwiched by the electric conductive plate 36, and the electric wire 34 and the electric conductive plate 36 are connected to apply a voltage. It is configured so that it can be covered, and this is covered with an electrical insulator 37 and inserted in close contact with the heater shell 31. Further, the electric wire 34 is held by the fixing portion 33. A heat radiating fin 32 is fixed on the side opposite to the water supply tubular portion 38.

  The operation and effect of the drum type washing and drying machine configured as described above will be described below.

  During the washing process, the heater 35 is energized during the water supply, and the water supplied from the water supply valve 20 passes through the water supply tubular portion 38 in the heater unit 17 and enters the water tank 2 to increase the temperature of the water. By using warm water, the detergent solution can be activated and the cleaning performance can be improved.

  Further, during the drying process, the heater 35 is energized, the blower fan 7 is operated, the hot air radiated from the fins 32 of the heater unit 17 is used as hot air, and the hot air blowing path 10 is passed through the hot air discharge port 25. Then, the laundry 9 can be dried by being fed toward the laundry 9 in the rotating drum 3 and circulating from the suction opening 24 of the water tub 2 to the circulation path 18.

  As described above, a single heater can be provided with a hot water function and a hot air function without providing a dedicated hot water heater or a dedicated hot air heater.

As described above, in the first embodiment, in the washing process, the heater 35 is energized to supply the water passing through the water supply tubular portion 38 of the heater unit 17 to the hot water tank 2 as hot water. In the drying process, by energizing the heater 35, hot air radiated from the fins 32 provided in the lower part of the heater cylindrical portion 39 of the heater unit 17 is used as warm air to enter the water tank 2 from the rotary drum 3. By adopting a circulating configuration, it is possible to reduce manufacturing costs, save energy, and ensure safety by providing a single heater with a hot water function for improving cleaning performance and a hot air function for drying. it can.
(Embodiment 2)
FIG. 4 is a longitudinal sectional view of a drum-type washing / drying machine according to the second embodiment of the present invention. In addition, about the same structure and site | part as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In FIG. 4, water is supplied from the water supply valve 20 through the water supply pipe 49 into the water tank 2. A circulation pump 45 that circulates washing water is provided below the water tank 2, and a suction pipe 46 is connected to the suction side of the circulation pump 45 so that the washing water in the water tank 2 is sucked into the circulation pump 45.

  A water flow pipe 47 is connected to the discharge side of the circulation pump 45, and the other side of the water flow pipe 47 is connected to one end of the water supply tubular portion 38 of the heater unit 17. The other end of the water supply tubular portion 38 is connected to the discharge pipe 48, and the water fed into the water flow pipe 47 by driving the circulation pump 45 passes through the water supply tubular portion 38 of the heater unit 17 and enters the water tank 2. Supplied and circulated.

  The operation and effect of the drum type washing and drying machine configured as described above will be described below.

  During the washing process, a predetermined amount of water is supplied from the water supply valve 20 into the water tank 2, the rotating drum 3 starts to rotate, and then the heater 35 is energized simultaneously with the driving of the circulation pump 45, and the washing water supplied from the water tank 2 By passing through the water supply cylindrical part 38 in the heater unit 17 and entering the water tank 2, the temperature of the water is raised to warm water, so that the detergent solution can be activated and the cleaning performance can be improved.

  Further, during the drying process, the heater 35 is energized, the blower fan 7 is operated, the hot air radiated from the fins 32 of the heater unit 17 is used as hot air, and the hot air blowing path 10 is passed through the hot air discharge port 25. Then, the laundry can be dried by being fed toward the laundry in the rotating drum 3 and circulating from the suction opening 24 of the water tub 2 to the circulation path 18.

  As described above, a single heater can be provided with a hot water function and a hot air function without providing a dedicated hot water heater or a dedicated hot air heater.

As described above, in the second embodiment, the circulation pump 45 that circulates the washing water in the water tub 2 and the water pipe 47 that communicates with the circulation pump 45 and is connected to the water supply tubular portion 38 of the heater unit 17. In the washing process, the heater 35 is energized to circulate the washing water from the circulation pump 45 passing through the water supply tubular portion 38 into the water tank 2 as hot water, and in the drying process, the heater 35 By energizing to the high temperature air radiated from the fins 32 provided in the lower part of the heater cylindrical portion 39 of the heater unit 17 as hot air, the hot air is circulated from the rotary drum 3 into the water tank 2. By providing a single heater with a hot water function for improving cleaning performance and a hot air function for drying, manufacturing costs can be reduced, energy saving and safety can be ensured. Can.

  As described above, the drum-type washing / drying machine according to the present invention has a hot water function for improving the cleaning performance and a hot air function for drying in one heater, thereby reducing the manufacturing cost and saving energy. Since it is possible to ensure safety, it can be applied to other washing machines having a hot water function and a hot air function.

DESCRIPTION OF SYMBOLS 1 Outer box 2 Water tank 3 Rotating drum 6 Motor 7 Blower fan 10 Warm air ventilation path 14 Control device 17 Heater unit 18 Circulation path 20 Water supply valve 32 Fin 35 Heater 38 Water supply cylindrical part 39 Heater cylindrical part 45 Circulation pump 47 Water flow pipe

Claims (2)

An outer box, a water tank that is swingably supported inside the outer box, a rotating drum that is rotatably included in the water tank, a motor that rotationally drives the rotating drum, and water supply to the water tank A water supply path for supplying water through a water supply valve, a blower fan for blowing hot air for drying into the rotary drum through a hot air blower path, and circulation for circulating air via the blower fan in communication with the bottom of the water tank Controls the path, the heater unit that forms a part of the water supply path and is also incorporated in the hot air blowing path, and the motor, water supply valve, heater unit, blower fan, etc., washing, rinsing, dehydrating, drying, etc. The heater unit includes a heater unit including a heater made of a PTC element, and communicates with the water supply path on the side surface in the longitudinal direction of the heater unit. And a heat-dissipating fin on the side surface of the heater portion facing the water supply portion, and the control device is energized to the heater in the washing process, While the water passing through the water supply path is heated and supplied into the water tank, and during the drying process, the heater is energized to heat the hot air radiated from the fins provided on the side surface of the heater section. A drum-type washing and drying machine that circulates from the rotating drum into the water tank as wind. A circulation pump that circulates the wash water in the water tank and a water flow pipe that communicates with the circulation pump and connects to a water supply portion of the heater unit. The control device energizes the heater in the washing process to supply the water supply. Washing water from the circulation pump passing through the water tubular portion is circulated into the water tank as warm water, and in the drying process, by energizing the heater, from the fins provided at the lower portion of the heater tubular portion The drum-type washing and drying machine according to claim 1, wherein the high-temperature air to be radiated is circulated as hot air from the rotating drum into the water tank.

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