JP2011000141A - Drum washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dehumidified water generated in a heat sink and returned into a drum from wetting laundry.SOLUTION: Washing and drying machine includes: a heat pump device shell 22 disposed above an outer tub with the heat sink 24 and a radiator 25 housed therein and with inner bottom inclined forward and upward; a drying air inlet 22e set on the front side of the heat pump device shell 22; a drying air outlet 22f set on the rear side of the heat pump device shell 22; and a discharge port 31 discharging dehumidified water generated in the heat sink 24. The discharge port 31 is disposed on the bottom on the rear side of the heat pump device shell 22, and a sucking resistance portion 49 is disposed on the bottom within the heat pump device shell 22 for preventing the dehumidified water within the heat pump device shell 22 from being sucked into the drying air outlet 22f.

Description

  The present invention relates to a drum type washing and drying machine that performs washing and drying.

  Conventionally, as shown in FIG. 29, this type of drum type washing and drying machine has an outer case constituted by a casing 101, and a door 102 is attached to the casing 101 so as to be opened and closed. An outer tub 103 as a washing / drying tub is provided in the housing 101. The outer tub 103 is provided with an opening 104 at a position facing the door 102 described above. An internal space of the outer tub 103 is an interior 105. A cylindrical drum 106 is rotatably provided in the chamber 105. A number of holes are provided in the peripheral wall of the drum 106 to allow water and air to pass therethrough.

  The drum 106 is disposed such that the rotation shaft 107 is inclined upward and the rotation shaft 107 of the drum 106 is rotationally driven by a drive motor (not shown). The opposite end surface of the drum 106 is open. Then, the door 102 can be opened and the laundry can be taken in and out of the drum 106.

  An accumulator 108, a compressor 109, an internal first heat exchange unit 110, an internal second heat exchange unit 111, and the like are arranged below the outer tub 103. The internal second heat exchange unit 111 is wound in a coil shape, and the internal first heat exchange unit 110 is wound in a coil shape on the outside of the internal second heat exchange unit 111. Therefore, the internal first heat exchange unit 110 and the internal second heat exchange unit 111 can prevent condensation on the refrigerant pipe on the downstream side of the internal second heat exchange unit 111 and also prevent condensation on the housing 101. .

  A drain pipe 112 is connected to the lower end of the outer tub 103. An air passage 115 is formed from an exhaust port 113 formed in the lower portion on the rear surface side of the outer tub 103 to an intake port 114 provided in the upper portion on the front surface side of the outer tub 103. The air passage 115 is formed along the back surface and the upper surface of the outer tub 103, and the upper portion is inclined upward and extends, and the drying air that has exited from the exhaust port 113 flows forward through the air passage 115. The air enters the drum 106 through the air inlet 114.

  The first cooler 116, the second radiator 117, the second cooler 118, the first radiator 119, and the blower 120 are arranged in this order from the windward side to the leeward side at the upper part of the air path 115. The dehumidified water generated in the cooler 116 and the second cooler 118 is discharged from the discharge port 121, flows into the drain pipe 112, and is drained (see, for example, Patent Document 1).

  Moreover, generally the discharge port of dehumidified water is provided directly under or near the heat absorber where dehumidified water is generated (for example, refer to Patent Document 2).

  As described in the above-mentioned Patent Document 1, the dehumidifying water discharge part is inclined forward and provided at the lowermost part of the air passage, and the dehumidifying water flows backward due to the downwardly descending inclination. The dehumidified water can be easily drained without using an auxiliary drainage means such as. On the other hand, the drying air flows from the rear to the front of the air passage, and is in the direction opposite to the direction in which the dehumidified water flows, so that the dehumidified water is not easily drawn into the drying air.

In general, this type of drum type washing and drying machine is provided with a filter for recovering lint from drying air in order to reduce adhesion of lint to the heat exchanger. Further, it is necessary to frequently perform maintenance for removing the collected lint from the filter. Therefore, it is preferable to provide the filter at an easy-to-use position on the front surface of the drum type washing and drying machine so that the user can easily perform maintenance.

  The lint is separated from the laundry in the washing, rinsing and drying processes, and circulates in the drum and the air passage by the drying air. Therefore, it is preferable to provide a filter at the outlet from the drum where the laundry is placed, that is, the inlet to the air passage, and by being located on the upstream side of the blower, heat exchanger, etc. provided in the air passage, This is because adhesion to these can be reduced. In other words, the easy-to-use position on the front side of the drum-type washing and drying machine serves as the entrance to the air passage, and the drying air flows from the front side of the drum to the rear side of the drum, facilitating frequent maintenance. It can improve usability.

JP 2003-265889 A Japanese Utility Model Publication No. 63-132698

  However, in the conventional configuration, the drying air flows from the exhaust port provided on the front surface side of the drum to the intake port disposed on the rear surface side of the drum, and the circulating air formed on the rear lower side located above the drum. The road flows from the front to the rear of the drum. In addition, the heat absorber that dehumidifies the drying air is provided in the circulation air passage located above the drum, so that the dehumidified water condensed by the heat absorber also flows backward in the circulation air passage formed downward. Will be discharged.

  That is, the direction in which the drying air flows through the circulation air passage is the same as the direction in which the dehumidified water flows through the circulation air passage, and both of them are configured to flow backward through the circulation air passage. Therefore, if the air volume of the drying air is increased to increase the drying effect, the wind speed passing through the circulation air passage and the heat absorber increases, and the dehumidified water condensed by the heat absorber is scattered by the drying air into the circulation air passage. A problem arises in that it is drawn into the drying air and returns to the drum to wet the laundry being dried.

  In order to prevent the drying air and the dehumidified water from flowing back in the circulation air passage to the same rear side in order to prevent the dehumidified water from returning into the drum together with the drying air, it is necessary to set the air volume of the drying air appropriately. However, there is a problem that it is difficult to achieve both improvement in drying effect and usability because there is inevitably a restriction on the increase in air volume.

  An object of the present invention is to solve the above-described conventional problems and to prevent dehumidified water generated in a heat absorber from returning to the inside of a drum together with drying air and wetting the laundry.

  In order to solve the above-described conventional problems, the drum-type washing and drying machine of the present invention includes a heat pump device, a compressor, a radiator that dissipates heat of the compressed high-temperature and high-pressure refrigerant, and a pressure of the high-pressure refrigerant. A depressurizing means for depressurization, a heat absorber from which the refrigerant that has been depressurized and depressurized takes heat, a pipe that connects the compressor, the depressurizing means, the radiator, and the heat absorber so that the refrigerant circulates; A heat pump device housing that houses a heat sink and a radiator and has an inner bottom surface inclined upward and disposed above the outer tub, an inlet for drying air provided on the front side of the heat pump device outer shell, and the heat pump device An outlet for drying air provided on a rear surface side of the outer shell, and a discharge port for discharging dehumidified water generated by the heat absorber; the discharge port is provided on a bottom portion on the rear surface side of the outer surface of the heat pump device; and the heat pump device At the bottom of the outer shell Dehumidification water in serial heat pump device shell in which is provided a suction resistance portion prevented from being sucked into the outlet of the drying air.

As a result, the dehumidified water can be guided to the discharge port without being drawn into the drying air flowing in the heat pump device outer wall by the suction resistance portion provided in the bottom of the heat pump device outer wall. It becomes possible to prevent the air from being sucked into the outlet, and it is possible to prevent the dehumidified water from returning to the inside of the drum together with the drying air and soaking the laundry.

  The drum type washing / drying machine of the present invention can prevent dehumidified water generated in the heat absorber from returning to the drum together with the drying air and wet the laundry, thereby improving both the drying effect and usability. Can do.

Sectional drawing of the principal part of the drum type washing-drying machine in the 1st Embodiment of this invention Partial cutaway perspective view of the drum-type washer / dryer Partially cutaway rear perspective view of the drum type washing and drying machine Partially cutaway top perspective view of the drum-type washer / dryer Perspective view of the installed state of the drum type washing and drying machine Top view of the heat pump device of the drum type washing and drying machine Perspective view of heat pump device outline of the drum type washing and drying machine The exploded perspective view of the heat pump device of the drum type washing and drying machine Lower perspective view when removing heat pump shell of the drum type washing and drying machine System conceptual diagram of heat pump device of the drum type washing and drying machine Sectional drawing of the principal part of the drum type washing-drying machine in the 2nd Embodiment of this invention Partially cutaway top perspective view of the drum-type washer / dryer The top view of the heat pump apparatus of the drum type washing-drying machine in the 3rd Embodiment of this invention AA sectional view of the drum type washing and drying machine in FIG. Partial cutaway top view of the heat pump device of the drum-type washer / dryer BB sectional view of FIG. 15 of the drum type washing and drying machine. Partial cutaway perspective view of the heat pump device of the drum type washing and drying machine The top view of the heat pump apparatus of the drum type washing-drying machine in the 4th Embodiment of this invention CC sectional view of FIG. 18 of the drum type washing and drying machine. Partial cutaway top view of the heat pump device of the drum-type washer / dryer DD sectional view of FIG. 20 of the drum type washing and drying machine Partial cutaway perspective view of the heat pump device of the drum type washing and drying machine EE sectional drawing of FIG. 20 which shows the other example of the heat pump apparatus of the drum type washing-drying machine. The top view of the heat pump apparatus of the drum type washing-drying machine in the 5th Embodiment of this invention FF sectional view of FIG. 24 of the drum type washing and drying machine Partial cutaway top view of the heat pump device of the drum-type washer / dryer GG sectional view of FIG. 26 of the drum type washing and drying machine. Partial cutaway perspective view of the heat pump device of the drum type washing and drying machine An exploded perspective view of a conventional drum-type washing and drying machine

1st invention provides the housing | casing, the outer tub arrange | positioned in the said housing | casing, the interior which can be rotated in the said outer tub, and the insertion port which throws in the laundry on the front side, and inclines forward A bottomed cylindrical drum, a motor for rotating the drum, a heat pump device for drying the laundry in the drum, and a circulation for connecting the outer tub and the heat pump device to circulate drying air The airway,
An air supply port for introducing drying air into the drum, an exhaust port for discharging the drying air from the drum, and a blower for blowing air to the circulation air path. The heat pump device includes a compressor, a post-compression A heat radiator that dissipates the heat of the high-temperature and high-pressure refrigerant, a pressure-reducing means that depressurizes the pressure of the high-pressure refrigerant, a heat absorber that takes away heat from the decompressed and low-pressure refrigerant, and the compressor and the pressure-reducing means And a heat pump device outer shell that houses the heat absorber and the heat sink, and that has an inner bottom surface inclined upward and disposed above the outer tank. A drying air inlet provided on the front side of the heat pump device outer shell, a drying air outlet provided on the rear surface side of the heat pump device outer shell, and a discharge port for discharging dehumidified water generated by the heat absorber. And the outlet is the heat Provided at the bottom of the rear surface side of the pump device outer shell, by providing a suction resistance portion to prevent the dehumidified water in the heat pump device outer shell from being sucked into the outlet of the drying air at the bottom of the heat pump device outer shell, The dehumidified water can be guided to the discharge port without being drawn into the drying air flowing in the heat pump device outline by the suction resistance portion provided at the bottom of the heat pump device outline, and is sucked into the drying air outlet together with the drying air. And the dehumidified water can be prevented from returning to the drum along with the drying air to wet the laundry.

  In the second aspect of the invention, in particular, the suction resistance portion of the first aspect of the invention is constituted by a concave groove portion extending from the inlet side of the heat pump device outer shell toward the discharge port, so that the dehumidified water is provided at the bottom portion by the concave groove portion. A barrier is formed upright substantially vertically, acting as a resistance to prevent dehumidified water flowing through the groove from being drawn into the drying air, and preventing it from being sucked into the drying air outlet together with the drying air Can do.

  In the third aspect of the invention, in particular, the suction resistance portion of the first or second aspect of the invention is configured such that the depth of the groove portion is formed so that the discharge port side becomes deeper, so that dehumidified water that increases as it approaches the discharge port can be reliably obtained. It can be accommodated in the groove and guided to the discharge port without being drawn into the drying air, and can be realized without reducing the volume in the heat pump device outer shell.

  In the fourth invention, in particular, the suction resistance portion of any one of the first to third inventions is formed so that the interval between the groove portions is narrower on the discharge port side, so that the plurality of groove portions are directed toward the discharge port. A larger amount is formed, and dehumidified water can be guided to the discharge port from a wide range on the upstream side in the outline of the heat pump device.

  In the fifth aspect of the invention, in particular, the suction resistance portion of the first aspect of the invention is constituted by a convex wall portion extending from the inlet side of the heat pump device outer shell toward the discharge port. A barrier is erected substantially vertically at the bottom by the portion, and acts as a resistance to prevent dehumidified water flowing along the convex wall portion from being drawn into the drying air, and the drying air together with the drying air Can be prevented from being sucked into the outlet, and the structural strength of the heat pump device outer shell can be increased at the same time.

  In the sixth aspect of the invention, in particular, the suction resistance portion of the first or fifth aspect of the invention is formed so that the height of the wall portion is higher on the discharge port side, so that the wall portion becomes closer to the outlet of the drying air. Since the height can be increased, the dehumidified water that increases as it approaches the discharge port can be reliably prevented from being drawn into the drying air and guided to the discharge port.

  In the seventh aspect of the invention, in particular, the suction resistance portion of the first, fifth or sixth aspect of the invention is formed such that the interval between the wall portions is narrowed on the discharge port side, so that the plurality of wall portions are formed. A larger amount is formed toward the discharge port, and the dehumidified water can be guided to the discharge port from a wide range on the upstream side in the heat pump device outer shell.

In the eighth aspect of the invention, in particular, the drying air outlet according to any one of the first to seventh aspects of the invention is provided with a wall on the rear surface of the outer surface of the heat pump device and provided at a certain upper position from the bottom to discharge dehumidified water. A discharge port is provided at a bottom portion on a certain side from the outlet of the drying air provided on the rear surface of the outer surface of the heat pump device so that the drying air and dehumidified water flow in two different directions toward the outlet and the discharge port, respectively. With this construction, the outlet for drying air and the outlet for dehumidifying water can be separated in the vertical and horizontal directions at the rear of the outer shell of the heat pump device, and the drawing-in action of the dehumidifying water by the drying air can be weakened. In addition, the wall raised on the rear surface can prevent the dehumidified water from being drawn into the drying air.

  In the ninth aspect of the invention, in particular, the discharge port of any one of the first to eighth aspects is disposed on the downstream side of the radiator, so that the dehumidified water scattered from the heat absorber to the downstream side by the drying air is reduced. It can be led to the outlet on the downstream side of the radiator, and the dehumidified water can be drained from inside the heat pump device without being drawn into the drying air.

  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)
1 is a cross-sectional view of a main part of a drum-type washing and drying machine according to a first embodiment of the present invention, FIG. 2 is a perspective view of the same part cutout, FIG. 3 is a rear perspective view of the same part, and FIG. FIG. 5 is a perspective view of the same installation state, FIG. 6 is a top view of the heat pump device, FIG. 7 is a perspective view of the outer shape of the heat pump device, and FIG. 8 is an exploded view of the heat pump device. A perspective view, FIG. 9 is a lower perspective view when the heat pump shell is removed, and FIG. 10 is a system conceptual diagram of the heat pump device.

  1 to 10, the outer tub 1 is elastically supported by a plurality of suspension mechanisms 3 inside a housing 2 of a drum type washing and drying machine. The drum 4 has an input port 6 for taking in and out the laundry 5 on the front side, is configured in a bottomed cylindrical shape, and is disposed in the outer tub 1. The drum 4 is provided so as to be rotatable about a rotating shaft 7 and accommodates the laundry 5, and a plurality of discharge holes 9 are provided in the peripheral wall 8 of the drum 4. The outer tub 1, the drum 4, and the rotating shaft 7 are disposed so as to be inclined upward by an angle θ (for example, 20 °) with respect to the horizontal.

  A motor 10 is provided outside the bottom of the outer tub 1 to rotate the drum 4 forward and backward. A front side of the housing 2 is provided with a substantially circular slot 6 for taking in and out the laundry 5 and a door 11 for opening and closing the same. The opening 1 a of the outer tub 1 that faces the inlet 6 is connected to the housing 2 by a packing 12 while ensuring an airtight structure. A water supply port 13 for supplying water is provided at the upper portion of the outer tub 1 and is connected to a water supply valve 14 located above the outer tub 1. Further, the bottom of the outer tub 1 has a drain port 15 for discharging washing water, and is connected to a drain valve 16.

  The blower 17 constituting the blowing means is provided on the upper portion of the outer tub 1 so as to be positioned in a corner space formed by the upper surface of the housing 2 and the outer tub 1. The blower 17 communicates with an air supply duct 18 provided on the outer surface of the outer tub 1, and blows air that has entered from an air supply duct inlet 18 a of the air supply duct 18 in the direction of an arrow 19 from the air supply opening 20 into the drum 4. To supply. Further, an exhaust port 21 is provided on the front upper surface portion of the outer tub 1, passes through the drum 4 and the outer tub 1, and is led out of the drum 4 from the exhaust port 21.

In the upper part of the outer tub 1, in order from the front, an extendable heat absorber side connecting member 23 connecting the exhaust port 21 and the heat pump device outer shell 22, and a heat absorber 24 comprising a heat exchanger constituting the heat pump device, A heat radiator 25, an expandable / contractable heat radiator side connecting member 26 that connects the heat pump device outer shell 22 and the blower 17 are disposed so as to be inclined forward and substantially parallel to the rotating shaft 7 of the drum 4. Accordingly, the drying air that has exited from the exhaust port 21 flows substantially linearly in the direction of the arrow 27 from the heat absorber side connecting member 23 to the radiator side connecting member 26 in this order.

  The inner bottom surface 22 a of the heat pump device outer shell 22 is inclined forward and substantially parallel to the outer tank 1 along the arrow 27 indicating the flow of drying air. Moreover, it has the open part 22b on the upper surface. The heat pump device outer shell 22 can be attached to and detached from the housing 2 in the vertical direction indicated by the double-headed arrow in FIG. 9. Inside the housing 2, a front fixture 44 a extending from the front to the rear and a rear fixture 44 b extending from the rear to the front are provided at the upper portion. The front fixture 44 a and the rear fixture The support part which supports the heat pump apparatus 47 to the housing | casing 2 is comprised by 44b.

  The front mounting portion 22c provided at the front portion of the heat pump device outer shell 22 is fitted to the front fixture 44a of the housing 2, and the rear mounting portion 22d provided at the rear portion of the heat pump device outer shell 22 is fitted to the rear fixing tool 44b of the housing 2. The heat pump device outer shell 22 is fixed to the housing 2 by being fitted to each other. Therefore, the heat pump device is in the same vibration system as the housing 2.

  The heat pump device 47 is supported by the housing 2 by a support portion so that a predetermined space is formed between the lower portion of the heat pump device outer shell 22 and the upper portion of the outer tub 1, and the outer tub 1 is driven by the rotation of the drum 4. Prevents the outer tub 1 from coming into contact with the heat pump device outer shell 22.

  The drying air blown by the blower 17 passes through the air supply duct 18 and enters the drum 4 through the air supply port 20 and passes through the laundry 5 in the drum 4 as shown by an arrow 28 in FIG. Out of the exhaust port 21, it passes through the heat absorber 24 and the radiator 25 in this order from the exhaust port 21 through the heat absorber side connecting member 23, and passes through the heat sink side connecting member 26. A circulation air passage returning to the blower 17 is formed.

  The heat absorber 24 and the heat radiator 25 are installed on the base 30 together with the compressor 29 constituting the heat pump unit to form a unit. The base 30 is installed along the inner bottom surface 22 a of the heat pump device outer shell 22. The base 30 is detachable in the vertical direction with respect to the heat pump device outer shell 22 as shown by the double arrows in FIG. The base 30 has a substantially planar first installation portion 30a where the radiator 25 and the heat absorber 24 are installed, and a substantially cylindrical second installation portion 30b where the compressor 29 is installed. The second installation portion 30b is formed on the rear side of the drum 4 with respect to the first installation portion 30a.

  The first installation part 30a is inclined forward and substantially parallel to the upper surface of the outer tub 1 along the arrow 27 indicating the flow of the drying air. Moreover, when the base 30 is arrange | positioned in the heat pump apparatus outer shell 22, the substantially cylindrical bottom face of the 2nd installation part 30b is a horizontal state, and is a position lower than the 1st installation part 30a. . The first installation part 30a of the base 30 is provided with a lower separating plate 30c and an upper separating plate 30d extending in the vertical direction, whereby the heat exchanger side where the heat absorber 24 and the radiator 25 are present, The first installation section 30a having the compressor 29 is separated from the compressor side. The heat absorber 24 and the heat radiator 25 are fixed to the base 30 by placing the lower end face on the lower separation plate 30c and then sandwiching the upper end face with the upper separation plate 30d.

  A discharge port 31 for discharging dehumidified water dehumidified by the heat absorber 24 is provided below the rear end surface of the heat exchanger side in the heat pump device outer shell 22. The opening 22b of the heat pump device outer shell 22 is covered with a cover 33 that is integrated with a lid 32 that covers the upper opening 2a of the housing 2 so as to be opened and closed. The heat pump device outer shell 22 and the cover 33 form a circulation air passage through which drying air flows.

The lid 32 is rotatable with respect to the casing 2 by a hinge mechanism 34 provided at the upper end on the rear surface side of the casing 2, opens and closes the upper opening 2a of the casing 2, and the lid 32. When the opening portion 22b of the heat pump device outer shell 22 is opened and closed by a cover 33 integrally formed on the inner surface side of the housing, and the upper opening 2a of the housing 2 is opened by the lid body 32, the opening portion 22b of the heat pump device outer shell 22 is simultaneously opened. .

  The inlet 22e provided on the front side of the heat absorber side connecting member 23 and the heat pump device outer shell 22, and the outlet 22f provided on the rear surface side of the heat radiator side connecting member 26 and the heat pump device outer shell 22 are connected directly under the lid 32, respectively. The heat pump device outer shell 22 and these connecting members 23 and 26 can be detached by opening the lid 32.

  The heat pump device 47 includes a compressor 29, a radiator 25 that radiates heat of the refrigerant compressed by the compressor 29, a decompression unit 35 that includes a capillary tube for decompressing the pressure of the high-pressure refrigerant, and a decompression unit. The refrigerant having a low pressure is connected to a heat absorber 24 that takes heat from the surroundings by a pipe 36 so that the refrigerant circulates, and the refrigerant flows in the direction of arrow 37 in FIG. Realize the cycle.

  The compressor 29 is electrically connected to control means 38 provided outside the heat pump device 47. The heat pump device 47 and the control means 38 are configured to be detachable from an electrical connection portion constituted by a connector 38a. The connector 38a is located in a corner space formed by the heat pump device outer shell 22 and the lid 32. It is held and can be easily detached from the upper opening 2a of the housing 2 when the lid 32 is opened.

  The operation and action of the drum type washing / drying machine configured as described above will be described below. In the washing process, water is supplied until the water level reaches a predetermined water level in the outer tub 1 with the drain valve 16 closed, and the washing 5 and the drum 4 containing the washing water are rotated by the motor 10 for washing. At this time, a part of the cleaning water enters the air supply duct 18, but the air supply duct 18 has a shape in which the path is lifted upward so that the cleaning water does not enter the heat pump device 47 and the blower 17. .

  In the rinsing process after washing, water is supplied into the outer tub 1 as in the washing process, and the laundry 4 is rinsed by rotating the drum 4. In the dehydration step, the drain valve 16 is opened to drain water to the outside of the machine, and then the drum 4 containing the laundry 5 is rotated at high speed by the motor 10 for dehydration. During the washing and dehydration, the entire outer tub 1 is vibrated by the rotational vibration of the drum 4. This vibration is absorbed by the suspension mechanism 3 and the vibration of the housing 2 is suppressed.

  In the drying process, when the compressor 29 of the heat pump device 47 is operated, the refrigerant is compressed, and this pressure circulates the radiator 25, the decompression means 35, and the heat absorber 24 through the pipe line 36. In the radiator 25, heat is released by the compression of the refrigerant, and in the heat absorber 24, the heat is absorbed by the refrigerant that has been decompressed by the decompression means 35 and becomes low pressure. At this time, the blower 17 is activated, and the warm air heated by the heat radiation of the radiator 25 is blown into the drum 4 from the supply port 20 through the supply duct 18. The drum 4 is rotationally driven by the motor 10, and the laundry 5 is lifted by the rotation of the drum 4 and dropped to be stirred up and down.

  The warm air blown into the drum 4 removes moisture when passing through the gaps in the laundry 5, passes through the exhaust port 21 of the outer tub 1 in the moist state, passes through the heat absorber side connecting member 23, and passes through the heat absorber. To 24. When the wet warm air passes through the heat absorber 24, the sensible heat and latent heat are deprived and dehumidified, and separated into dry air and dehumidified water. This dry air is heated again by the radiator 25 immediately after the heat absorber 24, becomes warm air, passes through the blower 17 and the air supply duct 18, and circulates to the drum 4.

On the other hand, the dehumidified water dewed by the heat absorber 24 has the first installation part 30a inclined forward as well as the inclination of the outer tub, so that the heat pump device outer shell 22 as shown by the arrow 43 in FIG. It is discharged out of the machine through a discharge port 31 provided below the rear end surface of the heat exchanger. A method of discharging the dehumidified water directly from the discharge port 31 to the outside of the device or a method of discharging the dehumidified water from the drain port 15 via the outer tank 1 to the outside of the device can be considered.

  By using the heat pump device 47 in this manner, the heat absorbed by the heat absorber 24 is recovered by the refrigerant and radiated again by the radiator 25 to give the laundry 5 more heat than the energy input to the compressor 29. Therefore, drying time can be shortened and energy saving can be realized.

  Further, since the drum 4 and the outer tub 1 are inclined upwardly, the lower portion of the inside of the housing 2 and the upper portion of the inside of the housing 2 are secured while ensuring the height of the insertion port 6 that is easy for the user to operate. A device arrangement space having an appropriate height in combination with the width and depth can be secured at the rear.

  Further, by disposing the heat pump device 47 above the outer tub 1, when the lid 32 is opened, the compressor 29, the decompression means 35, the radiator 25, and the heat absorber 24 connected by the pipe line 36 are opened from the upper opening 2 a. It can be easily taken out upward. Due to the installation space, as shown in FIG. 5, the drum-type washing and drying machine has a slight gap between the rear surface portion 2b of the housing 2 and the side surface portions 2c on both sides, or one of the side surface portions 2c and the wall surface 39 of the installation location. It is common to leave it installed. Therefore, the lid 32 is relatively easy to open without removing the trouble of moving the drum-type washing and drying machine among the elements constituting the exterior of the housing 2, and the pressure reduction with the compressor 29 constituting the heat pump device 47. The maintainability of the means 35, the radiator 25 and the heat absorber 24 is improved.

  Further, the washing liquid during washing does not enter the heat absorber 24 and the radiator 25 of the heat pump device 47 from the circulation air path. The heat absorber 24 and the heat radiator 25 are usually made of a metal such as copper or aluminum having good heat conductivity. If components such as a detergent, a softener, and a bleaching agent in the washing liquid are attached, they may be corroded. There is. Therefore, by placing the heat pump device 47 above the outer tub 1, the infiltration of the washing liquid can be prevented, and corrosion of the heat absorber 24 and the radiator 25 can be prevented without requiring a special anticorrosion configuration, Reliability can be improved.

  In addition, since the heat absorber 24 can be disposed relatively upper in the elements constituting the drum type washing and drying machine, dehumidified water generated when the drying air is dehumidified by the heat absorber 24 during the drying process. Is drained from the discharge port 31 through the first installation portion 30a inclined upward in the same manner as the inclination of the outer tub 1, so that it is discharged without using mechanical drainage auxiliary means or the like. Can do.

  Further, the compressor 29, the radiator 25, and the heat absorber 24 constituting the heat pump device 47 are installed on the base 30 to be integrated into a unit, and these are integrated with the base 30 and detached from the housing 2. The heat pump device can be attached and detached so that no stress is applied to the pipe line 36, and care should be taken so that the pipe line 36 is not stressed during maintenance of the heat pump device. It is possible to reduce the burden on the worker who required the work and to perform the work efficiently.

  Since the bottom surface of the compressor 29 is placed in a horizontal state, when the operator takes out the compressor 29, the decompression means 35, the radiator 25, and the heat absorber 24, the mutual positional relationship between them is a drum type. Whether or not the state of being placed in the washing / drying machine can be maintained can be determined by using the horizontal holding of the bottom surface of the compressor 29 as a guideline. Can be reduced.

In addition, the compressor 2 is provided for the first installation portion 30a in which the radiator 25 and the heat absorber 24 are installed.
By providing the second installation part 30b for installing 9 at a low position, the bottom surface of the relatively heavy compressor 29 among the elements constituting the heat pump apparatus is provided at a relatively low position. Thereby, the operator can take out the compressor 29, the decompression means 35, the radiator 25, and the heat absorber 24 more stably. Even when devices such as the compressor 29 connected by the pipe line 36 when being taken out are subject to unexpected shaking such as coming into contact with the housing 2, the mass center of gravity is relatively low. The shaking is quickly settled, and the possibility that stress is generated in the pipe line 36 due to the mutual positional shift of the devices can be reduced.

  In addition, by arranging the first installation part 30a on the front side of the drum 4 and the second installation part 30b on the rear side of the drum 4, the operator can easily take out the heat pump device. In addition, a compact circulation air passage arrangement is possible. The heat radiator 25 and the heat absorber 24 installed in the first installation part 30a can be divided into two configurations, so that a relatively flexible arrangement is possible, and transmission with the drying air is performed. In order to promote heat, it is desirable to provide a heat transfer mechanism having a heat transfer area as large as possible. Therefore, although it is possible to arrange more flexibly than the compressor 29 installed in the second installation unit 30b, the volume is often increased.

  In addition, when the operator opens the cover 32 and takes out the heat pump device upward in order to perform maintenance of the heat pump device, a drum-type laundry drying in which a space for the user to work without moving the main body is secured. Often removed from the front of the machine. Therefore, for an operator who often takes out from the front side of the drum type washing and drying machine, the second installation portion 30b having a relatively large volume is provided on the front side of the drum 4 located on the near side, and is located on the far side. By arranging the first installation portion 30a having a relatively small volume on the rear side of the drum 4 to be performed, it becomes easier for the operator to take out the elements constituting the heat pump device.

  Further, by providing the air supply port 20 in the vicinity of the rear surface of the drum 4 and providing the exhaust port 21 in the vicinity of the front surface of the drum 4, it is possible to lengthen the time for the drying air to stay in the drum 4. Air can be more efficiently brought into contact with the laundry 5 and utilized for drying. In addition, by providing a circulation air passage through which the drying air constituted by the heat pump device outer shell 22 flows in the direction of the rotation axis 7, a smooth flow can be achieved for the drying air, and a compact circulation air passage can be realized. . In addition, a circulation air passage constituted by the heat pump device outer shell 22 is arranged in the upper part of the drum 4, is inclined forward and is provided substantially parallel to the rotating shaft 7 of the drum 4, thereby providing a compact circulation air flow. At the same time, the arrangement of the road becomes possible, and the ease of taking out the heat pump device when it is repaired is improved because of the compactness.

  The circulation air path includes a heat absorber side connecting member 23 connected to the outer tub 1, a heat pump device outer shell 22 in which the heat absorber 24 and the heat radiator 25 are disposed and covered with a cover 33, a heat radiator side connecting member 26, An air supply duct 18 and the like connected to the outer tub 1 are connected to each other, and the heat absorber side connecting member 23, the heat pump device outer shell 22, and the radiator side connecting member 26 are arranged on the upper portion of the drum 4. Thus, the inlet 22e provided on the heat absorber side connecting member 23 and the front side of the heat pump device outer shell 22 and the outlet 22f provided on the rear surface side of the radiator side connecting member 26 and the heat pump device outer shell 22 are respectively provided on the lid 32. The heat pump device outer shell 22 and the connecting members 23 and 26 can be easily attached and detached by opening the lid 32.

Further, the circulation air passage formed by the heat pump device outer shell 22 covered with the cover 33 is inclined forward and provided substantially parallel to the rotating shaft 7 of the drum 4, thereby further reducing the length of the circulation air passage. Can be made more compact. In addition, the circulation air passage has an open portion 22b to which the radiator 25 and the heat absorber 24 can be attached and detached on the upper surface side, and a cover 33 that covers the open portion 22b in a removable manner. The unit of the heat pump device 47 including the compressor 29 connected by the pipe line 36 can be easily removed by simply removing the cover 33 without performing the detaching operation, and workability can be improved.

  Further, since the cover 33 is configured integrally with the lid 32, the heat absorber 24 accommodated by opening the lid 22 at the same time as opening the lid 32 at the time of repair and maintenance of the heat pump device. The heat radiator 25 and the compressor 29 can be exposed.

  The lid 32 can be opened and closed backward by a hinge mechanism 34. The maintenance of the heat pump device is temporarily performed at the installation location used by the user, and the lid 32 is opened and closed by the hinge mechanism 34 to temporarily remove the lid 32 from the housing 2 and temporarily place it. Is no longer necessary. Further, since the hinge mechanism 34 also serves to connect the housing 2 and the lid 32, the fastening operation of the housing 2 and the lid 32 necessary when closing the lid 32 can be simplified and facilitated.

  The connector 38a, which is an electrical connection between the heat pump device and the control means 38, is provided at a position that is visible near the upper opening 2a when the lid 32 is opened. The connector 38a can be easily attached and detached without causing an obstacle.

  Further, since the heat pump device outer shell 22 is connected by a heat absorber side connecting member 23 and a radiator side connecting member 26 that can be expanded and contracted near the upper opening 2a immediately below the lid body 32, the flexibility of these connecting members. Thus, the efficiency of the desorption work can be improved, and the compressor 29, the pressure reducing means 35, the heat absorber 24, and the heat radiator 25 connected by the pipe 36 can be removed from the outer tub 1 side as a unit of the heat pump device. .

  In the first embodiment, the lid 32 and the hinge mechanism 34 of the housing 2 are provided on the rear surface side of the housing 2, but may be provided so as to open to the side surface side. The drying air is introduced from the rear of the drum 4 and discharged from the front of the drum 4. However, the circulation air path may be formed so that the flow direction of the drying air in the drum 4 is reversed. . Further, the heat pump device can be taken out together with the heat pump device outline 22.

(Embodiment 2)
Next, a drum type washing / drying machine according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 11 is a cross-sectional view of a main part of a drum type washing / drying machine according to a second embodiment of the present invention, and FIG. 12 is an upper perspective view of the same casing. In addition, the same code | symbol is attached | subjected about the structure which carries out the same effect | action as Embodiment 1, and the thing of Embodiment 1 is used for concrete description.

  The difference from the first embodiment is that the compressor 29, the pressure reducing means 35, the heat absorber 24, and the heat radiator 25 connected by the pipe line 36 are detachably mounted on the upper part of the outer tub 1 as a unit of the heat pump device 47. Yes, the lower part of the outer shell 22 of the heat pump device is fixed to the upper part of the outer tub 1 by a fixing part 45 that can be removed. The opening 22 b of the heat pump device outer shell 22 is covered with a cover 46 that is independent of the lid 32. The cover 46 is detachable in the vertical direction as indicated by the double-headed arrow in FIG. 12, and when the lid 32 is opened, the cover 46 covering the open portion 22b can be removed. A heat absorber 24 and a heat radiator 25 are arranged in a space formed by the heat pump device outer shell 22 and the cover 46 to constitute a circulation air passage through which drying air circulates.

According to the above configuration, since the heat pump device is detachably attached to the upper portion of the outer tub 1 and is included in the vibration system, the weight of the outer tub 1 increases by the amount of the heat pump device. Therefore, when the vibration system including the outer tub 1 receives the force generated by the rotation of the drum 4 and vibrates, the vibration amplitude can be reduced, and a quieter operation is possible.

(Embodiment 3)
Next, a drum type washing / drying machine according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 13 is a top view of the heat pump device of the drum type washer / dryer according to the third embodiment of the present invention, FIG. 14 is a cross-sectional view taken along line AA of FIG. FIG. 16 is a partially cut-out top view of the heat pump device of the drum type washing and drying machine, FIG. 16 is a sectional view taken along line BB of FIG. 15 of the drum type washing and drying device, and FIG. It is a partially cutaway perspective view. In addition, the same code | symbol is attached | subjected about the structure which carries out the same effect | action as Embodiment 1, and the thing of Embodiment 1 is used for concrete description.

  Differences from the first embodiment will be described below. The outlet 22f rises on the rear surface of the heat pump device outer wall 22 and is provided upward from the inner bottom surface 22a with a constant interval H. The outlet 31 for discharging dehumidified water is the outlet 22f provided on the rear surface of the heat pump device outer wall 22. Are provided on the side inner bottom surface 22a with a certain distance L, and the drying air and the dehumidified water flow in two different directions toward the outlet 22f and the outlet 31 respectively.

  Between the discharge port 31 and the inner bottom surface 22a of the heat pump device outer shell 22, there is a pool 48 in which dehumidified water can be stored. The base 30 is provided with a notch 30e so as not to block the discharge port 31 and the pool 48. The first installation portion 30a of the base 30 is formed with a plurality of concave grooves 49 extending toward the discharge port 31 as suction resistance portions that prevent the dehumidified water from being sucked into the outlet 22f. . The depth of the groove portion 49 is formed so that the discharge port 31 side becomes deep, and the interval between the groove portions 49 is formed so that the discharge port 31 side becomes narrow.

  According to the above configuration, the dehumidified water acts as a resistance for preventing the dehumidified water flowing through the groove 49 from being drawn into the drying air by the concave groove 49 having the barrier standing upright at the bottom. Since it can be prevented from being sucked into the drying air outlet 22f together with the drying air, it is possible to prevent the dehumidified water from returning into the drum 4 together with the drying air and wetting the laundry 5.

  Further, since the depth of the groove portion 49 is formed so that the discharge port 31 side becomes deeper, dehumidified water that increases as it approaches the discharge port 31 is reliably accommodated in the groove portion 49 and discharged without being drawn into the drying air. While being able to guide to the exit 31, it can implement | achieve, without reducing the volume in the heat pump apparatus outer shell 22. FIG.

  Further, since the gaps 49 are formed so that the interval between the discharge ports 31 is narrower, a larger number of the groove portions 49 are formed toward the discharge ports 31, and the upstream side of the heat pump device outer shell 22 is wide. Dehumidified water can be guided to the discharge port 31 from the range.

  In addition, the outlet 22f rises on the rear surface of the heat pump device outer wall 22 and is provided above the inner bottom surface 22a with a certain distance H, and the discharge port 31 for discharging dehumidified water is provided on the rear surface of the heat pump device outer wall 22. Since it is provided on the inner bottom surface 22a on the side with a constant interval L from the outlet 22f, the drying air and the dehumidified water flow away from the outlet 22f and the outlet 31 in two different directions, respectively. The air outlet 22f and the dehumidified water discharge port 31 can be separated from each other in the vertical direction and the horizontal direction at the rear part of the heat pump device outer shell 22, and the drawing action of the dehumidified water by the drying air can be weakened. The raised wall can prevent the dehumidified water from being drawn into the drying air.

Since the outlet 22f has a generally smaller cross-sectional area compared to the inside of the heat pump device, the dehumidified water is sucked by the drying air relatively near the outlet 22f where the drying air has a higher flow velocity than the inside of the heat pump device. This configuration is very useful because it is easy.

  Further, since the discharge port 31 is disposed on the downstream side of the radiator 25, the dehumidified water scattered from the heat absorber 24 to the downstream side by the drying air can be guided to the discharge port 31 on the downstream side of the radiator 25. The dehumidified water can be drained from the heat pump device outer shell 22 without being drawn into the drying air. For example, the flow of the drying air varies depending on the pressure loss change depending on the amount of the laundry 5 put in the drum 4, and is not always constant. Taking advantage of this change, it is possible to significantly reduce the risk of being led in an unexpected direction and realize good dehumidified water drainage.

  Therefore, even when the dehumidified water is guided in an unexpected direction and the dehumidified water drains stagnate and the dehumidified water accumulates locally, the accumulated dehumidified water is scattered by the drying air and is dried together with the drying air to the drum 4. It is possible to prevent the laundry 5 from getting wet.

(Embodiment 4)
Next, a drum type washing / drying machine according to a fourth embodiment of the present invention will be described with reference to FIGS. 18 is a top view of the heat pump device of the drum type laundry dryer in the fourth embodiment of the present invention, FIG. 19 is a sectional view taken along the line CC of FIG. 18 of the drum type laundry dryer, and FIG. FIG. 21 is a partially cutaway top view of the heat pump apparatus of the drum type washing and drying machine, FIG. 21 is a sectional view taken along the line DD of FIG. 20 of the drum type washing and drying machine, and FIG. FIG. 23 is a partially cutaway perspective view, and FIG. 23 is a cross-sectional view taken along line EE of FIG. 20 showing another example of the heat pump device of the drum type washing and drying machine. In addition, the same code | symbol is attached | subjected about the structure which carries out the same effect | action as Embodiment 3, and the thing of Embodiment 3 is used for concrete description.

  The difference from the third embodiment is that a convex wall portion 50 is provided on the upper surface of the base 30 as a suction resistance portion so as to protrude substantially vertically.

  According to the above configuration, the dehumidified water flows along the upstream side of the wall portion 50 and flows to the discharge port 31, so that the dehumidified water is guided to the discharge port 31 without being drawn into the drying air flowing in the heat pump device outer shell 22. It is possible to prevent the air from being sucked into the drying air outlet 22f together with the drying air, so that the dehumidified water returns to the drum 4 together with the drying air and prevents the laundry 5 from getting wet. In addition, the convex wall portion 50 can simultaneously increase the structural strength of the heat pump device outer shell 22, particularly the strength of the bottom portion.

(Embodiment 5)
Next, a drum type washing / drying machine according to a fifth embodiment of the present invention will be described with reference to FIGS. FIG. 24 is a top view of the heat pump device of the drum type washer / dryer according to the fifth embodiment of the present invention, FIG. 25 is a cross-sectional view taken along the line F-F of FIG. 24, and FIG. Fig. 27 is a partially cutaway top view of the heat pump device of the drum type washing and drying machine, Fig. 27 is a sectional view taken along the line GG of Fig. 26 of the drum type washing and drying device, and Fig. 28 is a diagram of the heat pump device of the drum type washing and drying device. It is a partially cutaway perspective view. In addition, the same code | symbol is attached | subjected about the structure which carries out the same effect | action as Embodiment 3, and the thing of Embodiment 3 is used for concrete description.

  The difference from the third embodiment is that there is no base 30, and the heat absorber 24 and the radiator 25 are unitized together with the compressor 29 constituting the heat pump unit in a unit. A plurality of concave grooves 49 extending toward the discharge port 31 are formed on the inner bottom surface 22a of the heat pump device outer shell 22 as suction resistance portions that prevent the dehumidified water from being sucked into the outlet 22f. The depth of the groove portion 49 is formed so that the discharge port 31 side becomes deep, and the interval between the groove portions 49 is formed so that the discharge port 31 side becomes narrow.

  According to the above configuration, the dehumidified water acts as a resistance for preventing the dehumidified water flowing through the groove 49 from being drawn into the drying air by the concave groove 49 having the barrier standing upright at the bottom. Since it can be prevented from being sucked into the drying air outlet 22f together with the drying air, it is possible to prevent the dehumidified water from returning into the drum 4 together with the drying air and wetting the laundry 5.

  Furthermore, since the size of the heat absorber 24 and the heat radiator 25 can be increased by the amount that the base 30 is not provided, the drying air can be dehumidified and heated more efficiently. Therefore, the amount of moisture taken away from the laundry 5 by the drying air per unit time and the amount by which the drying air is dehumidified are increased, and the drying time can be shortened.

  As described above, the drum-type washing and drying machine according to the present invention can easily perform repair work of the heat pump device, and the dehumidified water generated in the heat absorber returns to the drum together with the drying air. Since the laundry can be prevented from being wetted, it is useful as a laundry dryer and a drum-type dryer in which a heat pump device is installed in the washing machine to perform washing and drying.

DESCRIPTION OF SYMBOLS 1 Outer tank 2 Housing | casing 2a Upper opening 4 Drum 6 Input port 10 Motor 17 Blower 20 Air supply port 21 Exhaust port 22 Heat pump apparatus outline (circulation air path)
24 heat absorber 25 heat radiator 29 compressor 30 base 31 discharge port 32 lid 35 pressure reducing means 36 pipe 47 heat pump device 49 groove (suction resistance part)
50 Wall part (Suction resistance part)

Claims (9)

A bottomed cylindrical shape that is inclined forward and is provided with a housing, an outer tub disposed in the housing, a rotatable interior in the outer tub, and an input port for loading laundry on the front side A drum, a motor for rotationally driving the drum, a heat pump device for drying the laundry in the drum, a circulation air passage for circulating the drying air by connecting the outer tub and the heat pump device, and the drum An air supply port for introducing drying air into the air, an exhaust port for discharging the drying air from the drum, and a blower for blowing air to the circulation air path. The heat pump device includes a compressor and a high temperature after compression. A radiator that dissipates the heat of the high-pressure refrigerant, a decompression unit that depressurizes the pressure of the high-pressure refrigerant, a heat absorber that takes heat away from the decompressed and low-pressure refrigerant, the compressor, the decompression unit, and the radiator A pipe connected to the heat absorber so that the refrigerant circulates; A heat pump device outer shell that houses the heat absorber and a radiator and has an inner bottom surface inclined upward and disposed above the outer tub; an inlet for drying air provided on the front side of the heat pump device outer shell; An outlet for drying air provided on the rear surface side of the outer surface of the heat pump device, and a discharge port for discharging dehumidified water generated by the heat absorber; the discharge port is provided at the bottom of the rear surface side of the outer surface of the heat pump device; A drum-type washing and drying machine provided with a suction resistance portion for preventing dehumidified water in the outer portion of the heat pump device from being sucked into an outlet of the drying air at a bottom portion in the outer portion of the heat pump device. The drum type washing and drying machine according to claim 1, wherein the suction resistance portion is constituted by a concave groove extending from the inlet side of the heat pump device outer shell toward the discharge port. The drum type washing and drying machine according to claim 1 or 2, wherein the suction resistance portion is formed so that the depth of the groove portion becomes deeper on the discharge port side. The drum type washing and drying machine according to any one of claims 1 to 3, wherein the suction resistance portion is formed so that the interval between the groove portions becomes narrower on the discharge port side. The drum type washing and drying machine according to claim 1, wherein the suction resistance portion is constituted by a convex wall portion extending from the inlet side of the heat pump device outer wall toward the discharge port. The drum type washing and drying machine according to claim 1 or 5, wherein the suction resistance portion is formed such that the height of the wall portion is higher on the discharge port side. The drum-type washing and drying machine according to any one of claims 1, 5, and 6, wherein the suction resistance portion is formed so that the interval between the wall portions is narrower on the discharge port side. The outlet of the drying air is provided on the rear surface of the outer surface of the heat pump device and a certain upper part from the bottom, and the outlet for discharging dehumidified water is from the outlet of the drying air provided on the rear surface of the outer surface of the heat pump device. The drum-type laundry drying according to any one of claims 1 to 7, wherein the drum-type laundry drying is provided at a bottom portion on a certain side so that drying air and dehumidified water flow in two different directions toward the outlet and the outlet. Machine. The drum type washing and drying machine according to any one of claims 1 to 8, wherein the discharge port is disposed on the downstream side of the radiator.