JP5104579B2 - Drum type washer / dryer - Google Patents

Description

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

  Conventionally, as shown in FIG. 13, this type of drum type washing and drying machine supplies air that is dehumidified and heated by a heat pump device to a drum in an outer tub 52 elastically supported in a casing 51. Hose 53, exhaust hose 54 for discharging the air supplied into the drum to the outside of the outer tub 52, and a mounting base to which the blower 55, the heat absorber 56, the radiator 57 and the compressor 58 constituting the heat pump device are fixed. 59. The air supply hose 53 and the exhaust hose 54 are formed of a flexible cylindrical member and provided so as to be detachable, and the heat pump device may be provided so as to be able to be pulled out from the housing 51 together with the mounting base 59. (For example, refer to Patent Document 1).

As a result, the air supply hose 53 and the exhaust hose 54 can be removed, and the heat pump device can be pulled out from the housing 51 together with the mounting base 59, so that assembly at the time of manufacture is easy, and repair maintenance of the heat pump device is possible. It is easy to do.
JP 2006-110394 A

  However, in the conventional configuration, it is necessary to move the heavy main body from the installation place at the time of repair and maintenance of the heat pump device, and there is a problem that much labor and labor are required for preparation and cleaning. That is, this type of drum-type washing and drying machine is generally installed with its back face close to the wall surface, and in the installed state there is no space to draw the heat pump device backward between the wall surface, This is because the work space cannot be secured, so that it is necessary to move the main body to the near side at the start of the work and return it to the original position after the work.

  The present invention solves the above-described conventional problems, and an object thereof is to facilitate repair maintenance of a heat pump device.

  In order to solve the above-described conventional problems, the drum type washing and drying machine of the present invention has a heat pump device attached to the upper part of the outer tub, and includes a compressor, a throttle means, a radiator, and a heat absorber connected by a pipeline. It is configured to be removable from the upper opening of the body.

  Accordingly, it is possible to eliminate the labor and labor required for preparation and cleanup of moving the main body of the drum-type washing / drying machine from the installation place at the time of repair maintenance of the heat pump device, and the work can be easily performed.

  The drum type washing / drying machine of the present invention can easily carry out repair work of the heat pump device.

1st invention provided the housing | casing, the outer tub elastically supported in the said housing | casing, and the interior which rotated inside in the said outer tub, and put in the opening side which throws in the laundry on the front side, and made it incline forwardly A bottomed cylindrical drum, a motor that rotates the drum, a heat pump device that is disposed in the housing and dries the laundry in the drum, and connects the outer tub and the heat pump device for drying. includes a circulation air duct for circulating the air, a blower for blowing air to the air circulation duct, and an air supply port for introducing drying air into the drum, and an exhaust port for discharging the drying air from the drum, the heat pump The apparatus includes a compressor, a radiator that dissipates heat of the high-temperature and high-pressure refrigerant after compression, a throttle means that depressurizes the pressure of the high-pressure refrigerant, and a heat absorber that depressurizes the low-pressure refrigerant and removes heat. The compressor, the throttle means, the radiator and the heat absorber are cooled. There has a conduit which is connected to circulate, wherein the heat pump apparatus by attached to the upper portion of the outer tub, when repair maintenance of the heat pump device, of moving the body of the drum type washing and drying machine from location The work and labor required for preparation and cleanup can be eliminated and the work can be easily performed, and the heat pump device can be configured compactly in a limited space in the casing formed above the outer tub. In addition, since the heat pump device is attached to the upper part of the outer tub, the washing liquid at the time of washing does not enter the circulation air passage, and the heat absorber and the heat radiator made of metal such as copper or aluminum having good heat conductivity However, corrosion due to detergents, softeners, bleaches, etc. in the washing liquid can be prevented. Further, the dehumidified water generated by the heat absorber during drying can be easily drained without using a draining means such as a pump.

According to a second aspect of the invention, in particular, the heat pump device according to the first aspect of the invention comprises a lid that covers the upper opening of the casing so as to be openable and closable, and includes a compressor, a throttle means, a radiator, and a heat absorber connected by a pipeline. The removable structure from the top opening of the housing eliminates the labor and labor required to prepare and move the drum-type washer / dryer from the installation location during repair and maintenance of the heat pump device. Can be done .

In the third invention, in particular, the heat pump device according to the second invention is configured such that the compressor, the radiator, and the heat absorber are installed on the base to be unitized, and the base is configured to be freely removable on the upper part of the outer tub. Thus, the compressor, the throttle means, the radiator and the heat absorber connected by the pipe are fixed to each other so that the stress applied to the pipe can be reduced, the handling at the time of desorption is facilitated, and the upper part of the outer tank The heat pump device can be configured compactly in a limited space in the housing formed in the above.

According to a fourth aspect of the present invention, in particular, the heat pump device according to any one of the first to third aspects of the present invention includes a compressor connected by a pipe line by being installed so that the bottom surface of the compressor is in a horizontal state. By maintaining the bottom surface of the compressor in a horizontal state when the throttling means, the radiator and the heat absorber are taken out and attached, the mutual positional relationship can be maintained and the stress applied to the pipe line can be reduced.

According to a fifth aspect of the present invention, in particular, the heat pump device according to any one of the first to fourth aspects of the present invention includes a first installation part in which a radiator and / or a heat absorber is installed, and a second installation in which a compressor is installed. A compressor having a higher mass can be installed at a lower position than a heat radiator and / or a heat absorber having a lower mass by providing the second installation portion at a position lower than the first installation portion. The position of the mass center of gravity can be lowered to facilitate handling, and workability at the time of attachment / detachment can be improved. In addition, when an unexpected external force is applied, such as when it comes in contact with the housing during removal or attachment, the mass center of gravity is at a low position, so that the oscillation can be quickly settled, and the stress applied to the pipe line due to the misalignment between each other Can be reduced.

In the sixth aspect of the invention, in particular, the heat pump device according to any one of the first to fifth aspects of the invention has a circulation air passage formed in the direction of the rotation axis of the drum, and either the air supply port or the exhaust port is provided. A second installation in which a compressor is installed on the front side of the drum, a second installation is provided on the rear side of the drum, a first installation section for installing a radiator and / or a heat absorber is installed on the front side of the drum By disposing the part on the rear side of the drum, it is possible to realize a smooth flow of the drying air and to efficiently circulate the drying air into the drum. In addition, when the work of repair and maintenance of the heat pump device is performed from the front side of the drum-type washing and drying machine, the first installation part for installing the radiator and / or the heat absorber is disposed on the front side of the drum. Even when the heat exchange area is increased to increase the size by increasing the dehumidification and heating efficiency, the heat exchange device can be compactly accommodated in the circulation air passage, and the heat pump device can be easily taken out from the housing.

In the seventh aspect of the invention, in particular, the circulation air passage of the sixth aspect of the invention is arranged in the upper part of the drum, is inclined forward and is provided substantially parallel to the rotation axis of the drum, and is thus generated in the heat absorber. Condensed water can be easily discharged from the back side of the drum, the circulation air passage can be arranged compactly along the outer tank, and the drying air can be efficiently circulated into the drum. It can be easily removed from the housing when the heat pump device is repaired.

According to an eighth aspect of the invention, in particular, the circulation air passage according to any one of the second to seventh aspects of the present invention includes an open portion on the upper surface side to which the radiator and the heat absorber can be attached and detached, and a cover that detachably covers the open portion. And the heat pump device accommodates the radiator and the heat absorber in the circulation air passage, and the circulation air passage connected to the outer tub by the cover defining the circulation air passage. By removing the cover without removing the cover, it is possible to easily take out the compressor, the throttle means, the radiator and the heat absorber connected by the pipe line from the upper opening of the casing.

In the ninth aspect of the invention, in particular, the lid of any one of the second to eighth aspects of the invention is configured to be rotatable by a hinge mechanism, so that a place to remove the lid from the housing and temporarily place it is unnecessary. Thus, the work can be performed in a state of being connected to the casing, and the upper opening of the casing can be easily opened and closed.

The tenth invention has control means for controlling the operation of the heat pump device according to any one of the second to ninth inventions, and when the upper opening of the housing is opened, the heat pump device and the control means Since the electrical connection portion is configured to be detachable, the electrical connection can be safely disconnected prior to removal of the heat pump device, and can be reliably connected after the heat pump device is mounted.

First aspect of the present invention is, in particular, has a telescopic coupling member for coupling the heat pump device and the outer tank of any one of the invention of the second through tenth, connected to the circulation air path side of one of said connecting member The other is connected to the outer tub side, and at least one of the connecting members is detachable when the upper opening of the housing is opened, so that the heat pump device and the outer tub are connected and separated by the flexibility of the connecting member. Is easy, and the desorption work of the heat pump device can be performed efficiently.

  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. Opening portion 22 of heat pump device outer shell 22
b is covered with a cover 33 integrated with a lid 32 that covers the upper opening 2a of the housing 2 so as to be openable and closable. 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 the heat of the refrigerant compressed by the compressor 29, a throttle means 35 that includes a capillary for reducing the pressure of the high-pressure refrigerant, and a pressure reduction device. 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 through the conduit 36 through the radiator 25, the throttle means 35, and the heat absorber 24. 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 expansion means 35 and has become a 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 throttling means 35, the radiator 25, and the heat absorber 24 connected by the pipe line 36 are opened from the upper opening 2a. 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 body 32 is an element constituting the external appearance of the housing 2 and is relatively easy to open without the need to move the drum-type washing and drying machine. The lid body 32 and the compressor 29 constituting the heat pump device 47 are throttled. 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 throttle 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, by providing the second installation portion 30b for installing the compressor 29 at a low position with respect to the first installation portion 30a for installing the radiator 25 and the heat absorber 24, elements of the heat pump device are arranged. Of these, the bottom surface of the relatively heavy compressor 29 is provided at a relatively low position. Thereby, the operator can take out the compressor 29, the throttle 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 detachment work can be improved, and the compressor 29, the throttle 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 throttling means 35, the heat absorber 24, and the heat radiator 25 connected by the pipe 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. In the space formed by the heat pump device outer shell 22 and the cover 46,
The heat absorbers 24 and 25 are arranged 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.

  As described above, the drum-type washing / drying machine according to the present invention can easily perform repair and maintenance work for the heat pump device, and thus is useful as a washing / drying device that is equipped with a heat pump device and performs washing / drying. It is.

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 An exploded perspective view of a conventional drum-type washing and drying machine

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 32 lid 35 throttling means 36 conduit 47 heat pump device

Claims (11)

A housing,
An outer tank elastically supported in the housing;
A bottomed cylindrical drum that is provided so as to be rotatable in the outer tub and is provided with a loading port for loading laundry on the front side and inclined upward.
A motor for rotationally driving the drum;
A heat pump device disposed in the housing and drying the laundry in the drum;
A circulation air passage for connecting the outer tub and the heat pump device to circulate drying air;
A blower for blowing air to the circulation air passage;
An air inlet for introducing drying air into the drum;
And an exhaust port for discharging the drying air from the drum,
The heat pump device includes a compressor, a radiator that dissipates heat of the compressed high-temperature and high-pressure refrigerant, a throttle unit that depressurizes the pressure of the high-pressure refrigerant, and an endothermic that takes the heat of the decompressed and low-pressure refrigerant. And a conduit connecting the compressor, the throttle means, the radiator, and the heat absorber so that the refrigerant circulates,
The heat pump device is a drum type washing and drying machine attached to the upper part of the outer tub. A lid that covers the upper opening of the housing so that it can be opened and closed is provided.
The drum-type washing and drying machine according to claim 1, wherein the compressor, the throttle means, the radiator, and the heat absorber connected by a pipe line are configured to be detachable from an upper opening of the casing. The drum-type washing and drying machine according to claim 2 , wherein the heat pump device is configured by installing a compressor, a radiator, and a heat absorber on a base to form a unit, and the base is freely detachable from an upper part of the outer tub. The drum type washing and drying machine according to any one of claims 1 to 3 , wherein the heat pump device is installed such that a bottom surface of the compressor is in a horizontal state. The heat pump device has a first installation part for installing a radiator and / or a heat absorber and a second installation part for installing a compressor, and the second installation part is lower than the first installation part. The drum type washing / drying machine according to any one of claims 1 to 4 , which is provided at a position. The heat pump device has a circulation air passage formed in the direction of the rotation axis of the drum, and either the air supply port or the exhaust port is provided on the front surface side of the drum and the other is provided on the rear surface side of the drum. or first installation unit for installing the heat sink is disposed on the front side of the drum, the second installation part for installing the compressor claim 1-5 which is disposed on the rear side of the drum 1 The drum-type washer-dryer according to item. The drum type washing and drying machine according to claim 6, wherein the circulation air passage is disposed at an upper portion of the drum, is inclined forward and is provided substantially in parallel with the rotating shaft of the drum. The circulation air passage has an open portion on which the heat radiator and the heat absorber can be attached and detached on the upper surface side, and a cover that detachably covers the open portion, and the heat pump device includes the heat radiator and the heat absorber on the circulation air passage. The drum-type washer / dryer according to any one of claims 2 to 7 , wherein the drum is housed in a housing and the circulation air passage is defined by the cover. The drum type washing and drying machine according to any one of claims 2 to 8 , wherein the lid is configured to be rotatable by a hinge mechanism. A controlling unit for controlling the operation of the heat pump apparatus, any one of claims 2 to 9, the electrical connection portion between the heat pump device and the control means when the open upper aperture of the housing and configured to removably 1 The drum-type washer-dryer according to item. It has a telescopic connecting member that connects the heat pump device and the outer tub, and one of the connecting members is connected to the circulation air passage side, the other is connected to the outer tub side, and the upper opening of the housing is opened. The drum type laundry dryer according to any one of claims 2 to 10 , wherein at least one of the members is configured to be removable.

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