JP2011136075A - Clothes dryer and washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clothes dryer and a washing and drying machine, wherein the time of drying is shortened, thereby saving power. <P>SOLUTION: The clothes dryer includes: a water tub supported in a housing; a bottomed cylindrical drum rotatably installed in the water tub, for accommodating clothes to be dried therein; a heat pump device 30 disposed in the housing, for drying the clothes in the drum; an air blower 9 for blowing air for drying the clothes; an air circulation passage 8 connecting the water tub and the heat pump device 30, for circulating the air for drying from the air blower 9; and a filter 40 provided in the air circulation passage 8, for preventing dusts from making its way into a heat exchanger HEX. The filter 40 and the heat exchanger HEX are provided in a space above the water tub in the housing. The filter 40, the heat exchanger HEX and the air blower 9 are arranged in this order from the upstream side of the air circulation passage 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a clothes dryer and a washing dryer provided with a heat pump mechanism.

  Conventionally, a drum-type washing / drying machine is provided with a heat pump mechanism instead of a heater type that consumes a large amount of power, and dries laundry by a heat pump drying method. The heat pump drying method is advantageous in terms of water saving and energy saving compared to the heater type because heat is recovered and reused from moist air after evaporating moisture from the laundry without using cooling water. is there.

  Said heat pump mechanism consists of the compressor which compresses a refrigerant | coolant, the heat exchanger HEX which consists of a heater and a dehumidifier, and the refrigerant | coolant circulation piping which connects each structural member which comprises a compressor and a heat exchanger. In a conventional drum-type washing and drying machine, the heat pump mechanism 130 is arranged in a lower space in the housing 100 as shown in FIG. The heat pump mechanism 130 is connected to the water tank 102 in which the drum 103 is housed by a circulation air passage 108. In addition, the circulation air passage 108 is provided with a filter unit 140 and a blower 109 that collect lint and the like generated in the laundry drying process. Then, the drying air that has passed through the drum 103 is discharged from above the water tank 102, passes through the filter unit 140, and then travels toward the blower 109. The drying air blown by the blower 109 is dehumidified and heated by the heat exchanger HEX of the heat pump mechanism 130 and flows into the drum 103 again.

JP 2006-110394 A

  However, in the conventional drum-type washer / dryer using the heat pump drying method in which the heat pump mechanism 130 is provided in the lower space in the casing 100, the outer tub 102 and the heat pump mechanism 130 are connected to circulate the drying air. The air path 108 becomes long. For this reason, pressure loss of the drying air occurs in the long circulation air passage 108, and it is difficult to efficiently secure a desired air volume of the drying air at a high circulation speed.

  As described above, when a sufficient amount of air for drying air cannot be secured in the circulation air passage 108, the heat exchange amount between the heat exchanger HEX disposed in the circulation air passage 108 and the drying air is also reduced, and the drying time is long. As a result, the problem of increased power consumption occurs.

  The present invention has been made to solve the above-mentioned problems, and shortens the drying time by improving the heat exchange efficiency in the heat exchanger while shortening the circulation air path of the drying air. An object of the present invention is to provide a clothes dryer and a washing dryer that can realize power saving.

  A clothes dryer according to an aspect of the present invention has a casing, an outer tub supported in the casing, and a bottomed cylindrical shape that is rotatably mounted in the outer tub and accommodates clothes to be dried. A drum, a heat pump device provided in the housing and provided with a heat exchanger for drying clothes in the drum, a blower unit for blowing drying air, the outer tub, and the heat pump device. A circulation air passage that circulates the drying air from the air blower, and a filter that is provided in the circulation air passage and prevents dust from entering the heat exchanger, The filter and the heat exchanger are provided in a space above the outer tub in the housing, and the filter, the heat exchanger, and the air blower are arranged in this order from the upstream side of the circulation air passage. Has been.

  According to said structure, since both the said filter and the said heat exchanger of the said heat pump apparatus are provided in the space of the said outer tank upper part in the said housing | casing, they can be distribute | arranged closely. And the said filter, the said heat exchanger, and the said ventilation part are arrange | positioned in this order from the upstream of the said circulation air path, and introduce | transduced the rectified drying air after passing a filter into a heat exchanger. The drying air that has been dehumidified and heated by the heat exchanger is blown by the blower.

  For this reason, a conventional configuration (a heat pump device is provided in the space below the outer tub in the housing, while a filter is provided in the space above the outer tub in the housing, and the filter, blower, and heat exchanger are provided. Compared to the arrangement in this order from the upstream side of the circulation air passage), the circulation air passage for circulating the drying air can be shortened. As a result, a low pressure loss air passage can be formed, the power consumption of the blower that blows the drying air in the circulation air passage can be reduced, and the circulation air volume of the drying air can be increased. Is possible.

  In the present invention, by providing the filter portion on the upstream side of the heat exchanger, the air for drying is rectified without installing a rectifying mechanism such as a straight portion in the circulation air passage. That is, if the filter unit is provided on the upstream side (inlet side) of the heat exchanger, the velocity distribution of the drying air is smoothed by the pressure loss that the drying air receives when passing through the filter unit (that is, Rectified). And since the drying air in a rectified state is introduced into the heat exchanger, it is possible to improve the heat exchange efficiency without causing large local unevenness in the heat exchange.

  As described above, the clothes dryer of the present invention shortens the circulation air passage to form a low-pressure loss air passage, and also realizes the rectification of the drying air in the shortened circulation air passage to generate heat. Since the exchange efficiency is increased, it is possible to save power and shorten the drying time as compared with the conventional configuration.

  Further, since the filter and the heat exchanger are provided in a space above the outer tub in the casing, the filter and the heat exchanger can be easily maintained from above the clothes dryer (clothing drying). This saves the time and effort required to move the machine from the installation location and clean up the machine), improving serviceability.

  In the above-described configuration, the heat exchanger includes a heat absorption part in which the refrigerant removes heat from the drying air, and a heat dissipation part in which the refrigerant dissipates heat to heat the drying air, and the filter in the heat absorption part It is preferably provided in the vicinity of the air introduction surface side.

  According to said structure, the said filter is provided in the ventilation introduction surface side vicinity in a heat absorption part. For this reason, the flow rate of the drying air is suppressed by the air rectifying action of the filter, and it is possible to avoid the situation where the flow of the drying air that passes through the heat absorbing portion locally becomes a high wind speed. Can be prevented. As a result, it is possible to reduce the size of the dehumidified water scattering prevention structure provided at the lower portion of the heat absorber, and thus to reduce the size of the clothes dryer.

  In addition, when dehumidifying water generated in the heat absorption part of the heat exchanger and collected in a state where the dehumidifying water scattering prevention structure is prevented from being scattered is drained to the outside of the clothes dryer, the heat exchanger is installed outside the casing. Since it is provided in the space above the tank, it is possible to drain easily using potential energy without using a draining means such as a pump. In this respect, the clothes dryer can be downsized.

  The filter unit is detachably attached to the circulation air passage, and includes a first filter portion for collecting and collecting dust in the drying air, and a first filter fixed in the circulation air passage. It is preferable that the first filter unit is disposed upstream of the second filter unit.

  According to the above configuration, the dust mixed in the drying air is captured by the first filter portion that is detachably provided, and taken out of the clothes dryer, whereby the dust is collected in the heat exchanger. It is possible to prevent entry. On the other hand, drying air (drying air from which dust has been removed to some extent) after passing through the first filter portion enters the second filter portion provided on the downstream side of the first filter portion. . For this reason, the amount of dust trapped by the second filter is less than that of the first filter portion on the upstream side. Therefore, since the second filter portion does not require frequent cleaning, replacement, etc., it can be fixed to the circulation air passage. Thus, it can be set as the structure which a user cannot touch easily by fixing a 2nd filter part. Furthermore, since the second filter part is fixed without being detachable, it is possible to reliably prevent the leakage of lint to the heat exchanger due to the set deviation of the second filter part.

  Complained about the configuration of a filter with a substantially cylindrical shape. Note that the first filter section is not limited to a substantially cylindrical filter so as to include a configuration of a substantially cylindrical filter alone.

  In the above configuration, the filter unit includes a substantially cylindrical filter that is partially opened as an inflow portion for drying air, and the flow velocity of the drying air that has passed through the filter is lower than the upper part of the heat absorbing unit. It is preferable that the filter is arranged in the circulation air path so that the direction is relatively suppressed.

  According to the above configuration, the flow rate of the drying air passing through the lower part of the heat absorbing unit can be suppressed by the substantially cylindrical filter than the flow rate in the upper part of the heat absorbing unit. Can be prevented more effectively. As a result, it is possible to further reduce the size of the dehumidified water scattering prevention structure provided at the lower portion of the heat absorber.

  In the above configuration, the heat pump device includes a compression unit that compresses the refrigerant, and the heat pump device is provided at an upper portion in the housing and connected to an upper portion of at least one of both side plates of the housing. The support member includes a first support member that is provided in the vicinity of the compression unit and supports the heat pump device from below, and a second support member that supports the heat pump device from above. Is preferred.

  According to said structure, the heat pump apparatus contains the compression part which is a heavy article. Since this heat pump device is supported by a support member connected to at least one upper part of both side plates of the case in the case, the gravity received by the compression unit which is a heavy object is the upper end of the side plate with respect to the side plate. Will act vertically downward. As a result, the gravity that the heat pump device receives around the swing of the upper end of the side plate due to vibrations suppresses the vibration amplitude, thereby producing an effect of suppressing vibration amplitude. In addition, since the heat pump device is added to the vibration system including the side plate, the weight of the vibration system including the side plate increases, and the vibration amplitude with respect to the same excitation force can be suppressed. In this way, by pressing the side plate from above using the gravity of the heat pump device including the compression unit, it is possible to effectively suppress the vibration of the side plate of the housing caused by the rotation of the drum or the like. Furthermore, since the first support member supports the vicinity of the compression part, which is a heavy object, from below, the support stability increases and the second support member also supports the heat pump device from above, so that the vertical direction The heat pump device can be stably supported even with respect to vibrations.

  Said structure WHEREIN: It is preferable that a said 2nd supporting member sets it as the structure which supports the site | part of the heat pump apparatus spaced apart from the said compression part from upper direction.

  According to the above configuration, when vibration in the vertical direction occurs, a moment acts in the direction of lifting in the part separated from the compression part (heavy object) in the heat pump device, so the part of the heat pump device separated from the compression part is moved upward. The support stability is further increased against vertical vibrations.

  A washing / drying machine according to another embodiment of the present invention includes a clothes drying machine having any one of the above-described configurations, and stores laundry water in the outer tub and rotates the drum to thereby rotate the clothes in the drum. It is preferable to wash.

  According to the above configuration, the drying air circulation path for drying air can be shortened, the heat exchange efficiency in the heat exchanger can be improved, and the drying time can be effectively shortened and the power can be saved. Machine can be realized.

  ADVANTAGE OF THE INVENTION According to this invention, drying time can be shortened and power saving can be implement | achieved by aiming at the improvement of the heat exchange efficiency in a heat exchanger, shortening the circulation air path of the air for drying.

It is side surface sectional drawing which shows schematic structure of the drum type washing-drying machine which concerns on one embodiment of this invention. It is a partial external view of the front surface of the drum type washing and drying machine. It is a perspective view which shows the cross section of the principal part of the said drum type washing-drying machine. It is a principal part top view of the said drum type washing-drying machine. It is an AA arrow directional longitudinal cross-sectional view of FIG. It is explanatory drawing which shows the upper part structure of the drum type washing-drying machine which concerns on one embodiment of this invention. It is a schematic diagram which shows an example of the support mechanism of the heat pump apparatus for clothes dryers which concerns on one embodiment of this invention. It is a perspective view which shows the principal part structure of the heat pump apparatus for clothes dryers which concerns on one embodiment of this invention. It is a schematic diagram which shows the other example of the support mechanism of the heat pump apparatus for clothes dryers which concerns on one embodiment of this invention. It is a perspective view which shows the principal part structure of the heat pump apparatus for clothes dryers which concerns on one embodiment of this invention. It is explanatory drawing which shows schematic structure of the washing-drying machine of the conventional heat pump drying system.

  Hereinafter, a drum type washing and drying machine according to an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not.

  FIG. 1 is a side sectional view of a drum-type washing / drying machine according to an embodiment of the present invention. FIG. 2 is a partial external view of the front surface of the drum-type washing / drying machine according to Embodiment 1 of the present invention.

  In FIG. 1, a cylindrical drum 3 (accommodating portion) having a bottom surface with a front opening for accommodating laundry is supported in a housing 1 and enclosed in a cylindrical water tank 2 for storing washing water. A drum drive motor 7 is attached to the rear surface of the water tank 2 to rotate the rotation axis of the drum 3 while tilting it forward. The water tank 2 is connected to a water supply pipe provided with a water supply valve (not shown) and a drain pipe provided with a drain valve.

  Further, the discharge port 11 is disposed on the upper side of the drum 3 so that the drying air after contacting the clothes can be effectively discharged upward. In a drum-type clothes dryer having no washing function, the discharge port 11 can be provided at a place other than above the drum 3. However, in a drum-type laundry dryer, since it is affected by the washing water, It is desirable to provide it above.

  Below the aquarium 2 is an illustration for supporting the aquarium 2 and attenuating vibration of the aquarium 2 when the drum 3 is rotated in a weight unbalanced state caused by uneven clothing in the drum 3 during dehydration or the like. There is no damper.

  As shown in FIG. 2, the front plate 1 e of the housing 1 is provided with a door body 5 so as to face the opening end side of the drum 3, and the user opens the door body 5 to open the drum 3. The laundry (clothing) can be taken in and out of the machine.

  On the upper part of the front plate 1e of the housing 1, there is provided an operation panel 4 which is elongated to the left and right and on which various operation keys and indicators are arranged, and on the lower side of the side plate 1b is a front drawer type detergent charging unit 10. Is installed. The detergent charging unit 10 accommodates a detergent container (not shown) in its internal space so that it can be pulled out. The detergent container includes a powder detergent container for housing a powder detergent (not shown), a liquid detergent container for housing a liquid detergent, and a soft finish container for housing a soft finish. It is divided into two.

  The drum type washing and drying machine of the present embodiment is configured to perform heat pump type dehumidification and heating, and includes a heat pump device 30 as shown in FIGS.

  FIG. 3 is a perspective view showing a cross section of a main part of the drum type washing and drying machine. FIG. 4 is a top view of an essential part of the drum type washing and drying machine. 5 is a vertical cross-sectional view taken along the line AA in FIG.

  As will be described in detail below, the drum-type washing and drying machine is configured such that the components forming the circulation path of the drying air centered on the heat pump device 30 are in a narrow space above the water tank 2 in the housing 1. It has a characteristic configuration that is centrally arranged.

  As shown in FIGS. 3 to 5, the heat pump device 30 includes a compression unit 31 that compresses a refrigerant, a heat exchanger HEX, and an expansion valve or a capillary tube for reducing the pressure of the high-pressure refrigerant. Part 33. The heat exchanger HEX includes a heating unit 32 (heat radiating unit) that radiates the heat of the refrigerant that has been compressed by the compression unit 31 to a high temperature and a high pressure, and a dehumidifying unit 34 that takes heat from the surroundings by the refrigerant that has been depressurized to a low pressure. (Endothermic part). The compression unit 31, the heating unit 32, the dehumidifying unit 34, and the decompression unit 33 constituting the heat exchanger HEX are connected by a pipe line 20 (FIG. 3), and are configured so that the refrigerant circulates through the pipe line 20. ing.

  The compression part 31 is arranged above the cylindrical outer peripheral surface of the water tank 2. And the compression part 31 is arrange | positioned so that the position of the bottom face 31a may become lower than the top part 2a of the bottom face of the water tank 2, as shown in FIG. Thus, the space formed in the upper part of the cylindrical outer peripheral surface of the water tank 2 is effectively used as the installation space for the compression unit 31 so that the heat pump device 30 including the compression unit 31 can be stored in a compact housing height. Can do. Thereby, even if the heat pump device 30 is installed in the upper part of the housing 1, it is possible to avoid an increase in the size of the clothes drying and washing machine in the height direction and to reduce the size of the device.

  The refrigerant compressed to a high temperature and high pressure by the compression unit 31 enters the heating unit 32, and heat is exchanged with the surrounding air (drying air passing through the circulation air path 8) to heat the air, and the refrigerant is cooled. To liquefy. The liquefied high-pressure refrigerant is decompressed by the decompression unit 33 to become a low-temperature and low-pressure liquid refrigerant, and then enters the dehumidifying unit 34 to exchange heat with the surrounding air to dehumidify and cool the air, and the refrigerant is heated. Then, the refrigerant returns to the compression unit 31 as a vapor refrigerant.

  On the other hand, the drying air sent out by the blower unit 9 enters the drum 3 through the water tank 2, dries the clothes in the drum 3 and enters the heat pump device 30 as humid air. In the heat pump device 30, the drying air is first dehumidified and cooled in the dehumidifying unit 34. Next, the drying air flows into the heating unit 32 and is heated to become high-temperature and low-humidity air, and returns to the blower unit 9.

  In the present embodiment, as shown in FIG. 4, the air blowing unit 9 is fastened to the heat pump device 30 and is disposed close to the side of the compression unit 31. Thus, by effectively using the space formed on the side of the compression unit 31 in the housing 1 as the installation space for the air blowing unit 9, the air blowing unit 9 can be housed in a compact housing height. Thereby, even if the heat pump device 30 and the air blowing unit 9 are installed in the upper part of the housing 1, it is possible to avoid an increase in the size of the clothes washer / dryer in the height direction and to reduce the size of the device. .

  Further, in the washing / drying machine, lint generated in the laundry drying process adheres to the heat exchanger HEX and accumulates, resulting in clogging and a decrease in the heat exchange rate. Therefore, as shown in FIGS. 5 and 6, a filter unit 40 is provided on the upstream side of the heat exchanger HEX in the circulation air passage 8. The filter unit 40 collects foreign matters such as lint, dust and pollen mixed in the drying air when passing through the drum 3 before the drying air passes through the heat exchanger HEX. Thus, dust is prevented from entering the heat exchanger HEX.

  As shown in FIG. 5, the filter unit 40 is provided on the downstream side of the first filter unit 40A and the first filter unit 40A that collects and collects dust having a predetermined size or more, and the first filter unit 40A. And a second filter portion 40B that collects and collects the fine lint and dust in the drying air that has passed through.

  As shown in FIG. 2, a filter opening 40c for attaching / detaching the first filter portion 40A is formed on the front side of the upper plate 1c of the housing 1, and the first filter portion 40A is a circulating air passage. 8 is configured to be detachable. For this reason, since a user or a service person can attach and detach the first filter unit 40A with respect to the casing 1 while standing from the front plate 1e side of the casing 1, the operability at the time of filter replacement is improved. be able to.

  On the other hand, as shown in FIG. 5, the second filter part 40 </ b> B is fixed in the circulation air path 8. That is, in the present embodiment, the first filter unit 40A is configured to be able to collect and collect almost all dust of a predetermined size or more, so the second filter unit 40B is configured as described above. It can be fixed to the circulation air passage 8. A heat exchanger HEX is disposed immediately upstream of the second filter portion 40B. The heat exchanger HEX is preferably configured so that it cannot be easily touched by the user or service person. Therefore, in the present embodiment, the second filter unit 40B provided in front (upstream side) of the heat exchanger HEX is fixed in the circulation air passage 8 so that the user or serviceman can attach to the heat exchanger HEX. The structure cannot be easily touched. Furthermore, by fixing the second filter part 40B without making it detachable, it is possible to prevent lint leakage to the heat exchanger HEX due to a set deviation of the second filter part 40B.

  Moreover, the filter part 40 which concerns on this Embodiment is provided in the upstream immediately before the heat exchanger HEX, as shown in FIG.4 and FIG.5. Therefore, the velocity distribution of the drying air is smoothed and rectified by the pressure loss that the drying air receives when passing through the filter unit 40. By the rectification of the drying air in the filter unit 40, the air path for guiding the rectification air to the inlet of the heat exchanger HEX and rectifying it can be shortened. Since the rectified drying air is introduced into the heat exchanger HEX, the heat exchange efficiency can be improved without causing large local unevenness in the heat exchange. Usually, when the circulation air passage is shortened and made compact, it is difficult to install a straightening mechanism such as a straight portion in the circulation air passage. However, in the present embodiment, by providing the filter unit 40 on the upstream side of the heat exchanger HEX as described above, the air for drying is rectified without providing a rectifying mechanism such as a straight part in the circulation air passage. It has realized and shortened the circulation air path.

  Moreover, as shown in FIG.1 and FIG.5, the filter part 40 is provided in the ventilation introduction surface side vicinity in the dehumidification part 34 of the heat exchanger HEX. Therefore, since the drying air rectified by the filter unit 40 is sent substantially linearly to the dehumidifying unit 34 provided immediately upstream of the filter unit 40 through a short air passage, the dehumidified water splashes in the dehumidifying unit 34. Can be prevented. That is, the flow velocity of the drying air is suppressed by the air rectifying action of the filter unit 40, and immediately after that, the drying air flows into the dehumidifying unit 34 substantially linearly (without causing a drift due to the bending of the flow path). For this reason, since the situation where the flow of the drying air passing through the dehumidifying unit 34 locally has a high wind speed can be avoided, the splash of dehumidified water generated in the dehumidifying unit 34 can be effectively prevented. As a result, as shown in FIG. 5, the dehumidified water scattering prevention structure 35 provided in the lower part of the dehumidifying part 34 can be reduced in size, so that the size of the washing / drying machine can be reduced.

  The dehumidified water scattering prevention structure 35 includes a concave portion that is generated in the dehumidifying portion 34 and receives water droplets of dehumidified water that falls along the surface of the dehumidifying portion 34, and the concave portion is blown away by the wind pressure of the drying air. It is formed in a range that can catch the water droplets of dehumidified water. As described above, it is possible to effectively prevent the dehumidified water from splashing by the air rectifying action of the filter unit 40, so that it is possible to reduce the formation range of the recessed portion that receives the water droplets of the dehumidified water. Become.

  Further, when the dehumidified water collected in a state in which splashing is prevented by the dehumidified water splash preventing structure 35 is drained to the outside of the washing / drying machine (for example, in a drain port for washing liquid or the like provided below the housing 1) Since the heat exchanger HEX is provided in the space above the water tank 2 in the housing 1, it is possible to easily drain using potential energy without using a draining means such as a pump. In this respect as well, the size of the washing / drying machine can be reduced.

  Moreover, the filter part 40 is provided in the upstream immediately before the heat exchanger HEX, and it is possible to effectively prevent dust such as lint from flowing into the heat exchanger HEX. Even if dust such as lint adheres to the heat exchanger HEX or accumulates in the heat exchanger HEX due to long-term use, the heat exchanger HEX is provided in the upper part in the housing 1, so that the accumulated lint, etc. During the maintenance for removing the dust, the service person can perform the maintenance operation while standing from the front plate 1 e side of the housing 1, so that the maintainability can be improved.

  Next, a configuration example of the filter unit 40 will be described in more detail with reference to FIG. The first filter portion 40A (filter) of the filter portion 40 has a substantially cylindrical shape, and the cylindrical peripheral surface is made of a mesh-like filter member having a predetermined roughness. A part of the cylindrical peripheral surface of the first filter portion 40A is opened as an inflow portion 41 for drying air, and the drying air discharged through the drum 3 passes from the inflow portion 41 to the first filter portion 40A. Flows into. On the other hand, the second filter portion 40B fixed downstream of the first filter portion 40A has a flat plate shape.

  A lid part 42 is provided on the upper part of the first filter part 40A. When the first filter part 40A is set in the washing and drying machine, the lid part 42 is formed on the upper plate 1c of the housing 1. The filter opening 40c is fitted. The lid portion 42 also functions as a handle member when the user attaches the first filter portion 40A.

Since the first filter portion 40A has a substantially cylindrical shape as described above, the flow passing through the filter portion is along the radial direction of the substantially cylindrical shape. That is, the pressure loss of the filter portion is such that the portion in which the flow direction of the drying air flowing into the filter portion matches the radial direction of the substantially cylindrical shape is relatively small, and thus the drying air that has flowed into the first filter portion 40A. The pressure loss distribution of the first filter portion 40A is relatively large in the upper and lower portions (region indicated by L _L in FIG. 5), and the central portion of the first filter portion 40A (in FIG. 5). L pressure loss than in the region) indicated by _S is reduced. Then, when the drying air that has passed through the first filter part 40A having such a pressure loss distribution flows into the heat exchanger HEX, the lower part of the dehumidifying part 34 has a relatively lower flow rate than the upper part. It has become so. As described above, the first filter portion 40A has a substantially cylindrical shape so that the lower part of the dehumidifying part 34 has a relatively lower flow rate than the upper part thereof, and this is provided in the vicinity of the air introduction surface of the dehumidifying part 34. It is desirable. Thereby, scattering of the dehumidification water which generate | occur | produces in the dehumidification part 34 can be suppressed more effectively. That is, the water droplets of the dehumidified water generated in the dehumidifying unit 34 are relatively small at the top of the dehumidifying unit 34, but the water droplets combine to drop gradually while falling down the surface of the dehumidifying unit 34, The lower part of the dehumidifying part 34 has larger droplets of water droplets adhering to the upper part. Since the lower part of the dehumidifying part 34 has a relatively slower flow rate of drying air than the upper part of the distribution of the size of the water droplets, the water droplet scattering range can be reduced as a result. is there. Therefore, the dehumidified water scattering prevention structure 35 provided below the dehumidifying part 34 can be made more compact.

  As described above, in the washing and drying machine of the present embodiment, the filter unit 40 and the heat exchanger HEX of the heat pump device 30 are both provided in the space above the water tank 2 in the housing 1, so that both are close to each other. Can be arranged. And the said filter part 40, the heat exchanger HEX, and the ventilation part 9 are arrange | positioned in this order from the upstream of the circulation air path 8, and heat the rectified drying air after passing through the filter part 40. The drying air introduced into the exchanger HEX and dehumidified and heated by the heat exchanger HEX is blown to the drum 3 by the blower 9. Therefore, the washing and drying machine of the present embodiment has a conventional configuration (a heat pump device is provided in the space below the outer tub in the housing, while a filter is provided in the space above the outer tub in the housing, Compared to a configuration in which the filter, the air blower, and the heat exchanger are arranged in this order from the upstream side of the circulation air passage), the circulation air passage 8 through which the drying air is circulated can be shortened. As a result, a low pressure loss air passage can be formed, the power consumption of the blower 9 that blows the drying air in the circulation air passage 8 can be reduced, and the circulation air volume of the drying air is increased. It is possible. And even in the shortened circulation air passage, since the rectification of the drying air is realized and the heat exchange efficiency is increased, the heat exchange amount per unit time is significantly increased compared to the conventional configuration, In addition, power saving and drying time can be shortened.

  Moreover, the washing / drying machine of this Embodiment is provided with the 1st temperature sensor 36 and the 2nd temperature sensor 37 which detect the temperature of the air for drying in the circulation air path 8, as shown in FIG. The first temperature sensor 36 detects the drying air temperature before passing through the drum 3 and flowing into the heat exchanger HEX. On the other hand, the second temperature sensor 37 detects the temperature of the drying air before it is dehumidified and heated by the heat exchanger HEX and flows into the drum 3. The detection outputs of the first and second temperature sensors 36 and 37 are used for controlling the heat pump device 30 and the like.

Here, the first temperature sensor 36 is provided between the filter unit 40 and the heat exchanger HEX. In particular, the region L _L (first filter unit) having a large pressure loss in the substantially cylindrical first filter unit 40A. It is provided in the vicinity of the upper part or the lower part of 40A. The region L _{L with} a large pressure loss in the first filter part 40A is less likely to be clogged with lint or the like than the region L _{S with} a smaller pressure loss. Thus, the first temperature sensor 36 provided in the vicinity of the area L _L is capable accurately detect the temperature of the dry air for a long period of time. In addition, when the filter unit 40 is clogged due to lint or the like, the detection temperature of the first temperature sensor 36 changes, and therefore the presence or absence of the filter unit 40 can be detected by the output of the first temperature sensor 36. Then, by providing the first temperature sensor 36 in the vicinity of the area L _L, the clogging of the filter unit 40, a long period of time, it is precisely detectable.

  The second temperature sensor 37 is provided on the downstream side of the air blowing unit 9. In the present embodiment, the first temperature sensor 36 and the second temperature sensor 37 can be compactly integrated in the circulation air passage 8 shortened as described above. And by shortening the circulation air path 8, temperature detection error factors, such as leak air, also reduce. Therefore, the first temperature sensor 36 and the second temperature sensor 37 provided in an integrated manner enable more accurate temperature detection with less influence of leaked air or the like.

  Next, a support mechanism for supporting the heat pump device 30 of the drum type washer / dryer on the housing 1 will be described with reference to FIGS.

  The drum type washing and drying machine includes a first support member 61 and a second support member 62 that support the heat pump device 30 on both side plates 1 a and 1 b of the housing 1. As shown in FIGS. 6, 7, etc., the first support member 61 is installed between the side plates 1 a and 1 b so as to support the upstream end of the compression unit 31 in the heat pump device 30 from below. . On the other hand, the second support member 62 has a portion separated from the compression unit 31 in the heat pump device 30 from above through the filter unit 40 located at the upstream end of the component member that forms the circulation path of the drying air. It is constructed between both side plates 1a and 1b so as to support it.

  According to the support mechanism of the heat pump device 30 described above, the gravity of the compression portion 31 that is a heavy object is exerted on the side plates 1a and 1b via the first support member 61 that supports the vicinity of the compression portion 31 in the heat pump device 30. It will act in the vertically downward direction from above. As a result, the effect of suppressing the vibration amplitude by pressing the swing of the upper ends of the side plates 1a and 1b due to vibration with the gravity of the heat pump device 30 is generated. Further, since the weight of the heat pump device 30 is added to the vibration system including the side plates 1a and 1b, the weight of the vibration system including the side plates 1a and 1b is increased, and the vibration amplitude with respect to the same excitation force is suppressed. In this way, as a result of a large force acting vertically on the both side plates 1a and 1b of the housing 1 from above, vibrations of the side plates 1a and 1b of the housing 1 caused by rotation of the drum 3 and the like are suppressed. be able to. Thereby, the vibration of the whole housing | casing 1 can be reduced.

  According to the above support mechanism including the first support member 61, the casing generated by the rotation of the drum 3 or the like by pressing the both side plates 1 a and 1 b from above using the gravity of the heat pump device 30 including the compression unit 31. The vibration of the side plates 1a and 1b of the body 1 can be effectively suppressed.

  In addition, although the 1st support member 61 of this Embodiment is constructed between the both-sides plates 1a and 1b of the housing | casing 1, the gravity of the compression part 31 which is a heavy article is the 1st support member of this invention. If it is the structure which supports the heat pump apparatus 30 so that it may act on a perpendicular | vertical downward direction with respect to a side plate, it will not be limited to said structure. For example, as shown in FIGS. 9 and 10, as the first support member, a first support member 63 erected between the side plate 1a on the side where the compression portion 31 of the housing 1 is provided and the back plate 1d. May be used. That is, the first support member 63 is a corner formed by one side plate 1 a and the back plate 1 d of the housing 1, and is configured to support the vicinity of the compression unit 31 that is a heavy object in the heat pump device 30 from below. There may be. In this manner, if the heat pump device is supported by the corners of the strong side plate 1a and the back plate 1d, a support mechanism that can withstand an impact such as dropping or falling can be realized.

  Moreover, in this Embodiment, as above-mentioned, the ventilation part 9 is fastened with the heat pump apparatus 30, and is arrange | positioned close to the side part of the compression part 31. As shown in FIG. For this reason, in addition to the heat pump device 30, the side plate is pressed from above using the gravity of the air blowing unit 9, so that the vibration of the side plate of the housing 1 caused by the rotation of the drum can be effectively suppressed. In addition, since the compression unit 31 that is a heavy object and the blower unit 9 that is a heavy object are disposed in proximity to each other because it also includes a blower motor, the structure for supporting the compression unit 31 that is a heavy object Since the structure for supporting the air blowing unit 9 can be shared and the heavy object support structure can be simplified, the number of constituent members can be reduced, the weight of the machine body can be reduced, and the cost can be reduced.

  Furthermore, in the heat pump device 30, a portion of the heat pump device 30 that is separated from the compression unit 31 is also supported from above by the second support member 62.

  As described above, in the configuration in which the compression portion 31 that is a heavy object is provided at the rear end portion, the front side (such as the heat exchanger HEX) provided with a light-weight constituent member other than the compression portion 31 in the heat pump device 30 ( On the other hand, the upstream side will rise. Therefore, in the present embodiment, as described above, the heat pump device 30 is provided by the second support member 62 installed between the side plates 1a and 1b so as to suppress the lifting of the front side (upstream side) of the heat pump device 30. The front side is supported through the filter unit 40. That is, the filter unit 40 is connected to the front side of the heat pump device 30, and the front side of the heat pump device 30 is substantially supported from above by supporting the filter unit 40 with the second support member 62. It has become. Note that the front side of the heat pump device 30 may be directly supported from above by the second support member 62 without using the filter unit 40.

  By supporting the constituent members such as the heat pump device 30 provided in the upper space of the housing 1 from below by the first support member 61 and by supporting the second support member 62 from above by the above support mechanism, It can be stably supported against vibrations in the vertical direction. Thereby, the vibration of the whole housing | casing 1 by rotation of the drum 3 can be reduced.

  In addition, the support mechanism by the first support member 61 and the second support member 62 causes the fixing member such as a screw to be damaged even when the product is accidentally dropped during transportation or installation of the washing / drying machine. In addition, the supported member such as the heat pump device 30 can be reliably held. Hereinafter, this point will be described.

  Usually, when a component is arranged in the upper space in the casing of the washing / drying machine, the upper surface of the component is supported by a plurality of support members. That is, a support structure that holds the upper surface of the component is generally used. In this case, when a product is accidentally dropped, a fixing member (such as a screw) that fastens the component and the support member receives a tensile force due to the gravity of the component. For this reason, fixing members (such as screws or bosses tightened with screws) are easily damaged. In particular, as the weight of the part increases, the tensile force acting on the fixing member also increases, so that the fixing member is easily damaged.

  On the other hand, the support mechanism according to the present embodiment supports the vicinity of the compression unit 31, which is a heavy object in the heat pump device 30, from below by the first support member 61, and the part of the heat pump device 30 that is separated from the compression unit 31. Is supported from above by the second support member 62. Thereby, when the washing / drying machine (product) is accidentally dropped, a compressive force from above is applied to the first support member 61 due to the gravity of the heat pump device 30. At this time, a compressive force is also applied to a fixing member such as a screw or a boss that fastens the first support member 61 and the heat pump device 30, but there is no possibility that the fixing member is damaged because no tensile force acts. In addition, since the vicinity of the compression part 31 that is a heavy object in the heat pump device 30 is supported from below by the first support member 61, a moment is generated in the lifting direction at the support part of the second support member 62 that is separated from the compression part 31. work. Here, since the second support member 62 supports the heat pump device 30 from above, a compressive force from below is applied to the second support member 62. Therefore, also in the 2nd support member 62, there is no possibility that fixing members, such as a screw and a boss, will be damaged.

  Normally, when the component is supported from below in the upper space in the casing of the washing / drying machine, the distance between the water tank and the support member becomes closer by the amount of the support member. For this reason, the height of the entire washing and drying machine must be increased. However, in the washing and drying machine of the present embodiment, the drum 3 and the water tub 2 are provided with an inclination, and the space behind the upper part in the housing 1 generated by the inclination is used to increase the height of the entire washing and drying machine. The first support member 61 can be disposed on the lower surface of the heat pump device 30 without increasing the height.

  Moreover, in this Embodiment, as shown in FIG. 4, the ventilation part 9 is fastened with the heat pump apparatus 30 by the fastening member 38, and the said ventilation part 9 is arrange | positioned adjacent to the side part of the compression part 31. As shown in FIG. ing. Thereby, in addition to the heat pump device 30, the side plates 1 a and 1 b are pressed from above using the gravity of the blower 9, thereby effectively suppressing the vibration of the side plate of the housing 1 caused by the rotation of the drum 3. be able to. In addition, since the compression unit 31 that is a heavy object and the blower unit 9 that is a heavy object are disposed close to each other because the blower motor 9a is included similarly, the compression unit 31 that is a heavy object is supported. The structure (first support member 61 and the like) and the structure for supporting the air blowing unit 9 can be used together, and the heavy object support structure can be simplified, thereby reducing the number of components, reducing the weight of the machine, and reducing the cost. Is possible.

  Further, since the heat pump device 30 is disposed above the water tank 2, the washing liquid during washing does not enter the circulation air passage 8, and is dehumidified with a metal such as copper or aluminum having good heat conductivity. The part 34 and the heating part 32 can be prevented from being corroded by a detergent, a softener, a bleaching agent or the like in the washing liquid.

  Further, in the present embodiment, the dehumidifying part 34 and the heating part 32 constituting the heat exchanger HEX are preferably arranged in a substantially straight line with the air blowing part 9 along the air path of the drying air. ing. In this case, it is possible to prevent the occurrence of drift due to the bending of the flow and further reduce the pressure loss of the drying air, and the drying air can be circulated without waste, so the drying air in the circulation air passage is blown. The power consumption of the air blower 9 can be reduced. Further, since it is possible to prevent the occurrence of uneven flow, it is possible to prevent the flow of the drying air passing through the dehumidifying unit 34 from locally becoming a high wind speed, so that the dehumidified water generated in the dehumidifying unit 34 is used for drying at a high wind speed. It is possible to prevent an inconvenient situation that the air scatters on the air, passes through the air blowing unit 9, returns to the drum 3, and wets the clothes.

  In addition, when the air volume of the drying air of the circulation air path 8 falls, the heat exchange amount between the dehumidifying part 34 and the drying air arranged in the circulation air path also falls. In this case, the refrigerant cannot be completely vaporized in the dehumidifying unit 34, so that the liquid refrigerant is compressed by the compression unit 31 in the next stage, and there is a risk of leading to failure of the compression unit 31. In the present embodiment, the above-described configuration can efficiently secure a desired air volume of the drying air in the circulation air passage 8, thereby avoiding the inconvenience that the liquid refrigerant is compressed by the compressor 31 and fails. This improves the reliability of the washer / dryer (or clothes dryer) using the heat pump device 30. And since dehumidification can be performed continuously without stopping the compression part 31 by the improvement in reliability, the drying operation time can be shortened.

  The blower unit 9 includes a blower motor 9a and a blower fan 9b. The blower unit 9 is provided with an inclined rotation shaft so that the blower motor 9a side is above the blower fan 9b. As a result, even if the dehumidified water is scattered to the blower unit 9, the dehumidified water adhering to the rotating shaft is dropped in a direction opposite to the motor 9b due to gravity and positioned above the position where the dehumidified water is scattered. It is possible to prevent moisture from entering the blowing motor 9b.

  Further, in the present embodiment, as shown in FIG. 8 and the like, a control in which electrical and electronic parts (various circuits) necessary for controlling the washing / drying machine are mounted above the detergent charging unit 10 in the housing 1. A substrate 50 is provided.

  For this reason, compared with the structure which provided the control board 50 in the lower part in the housing | casing 1, the lead wire which electrically connects the control board 50 and each member can be shortened. In addition, by providing the control board 50 at an easy-to-operate position on the upper front side in this way, the service person can perform the maintenance operation while standing from the front plate 1e side of the housing 1 during maintenance of the control board 50. And maintainability can be improved.

  In the present embodiment, as the filter unit 40, a two-stage filter composed of the first filter unit 40A and the second filter unit 40B is illustrated, but a single-stage filter or a three-stage or more filter may be used. Good. Moreover, although the filter structure of the substantially cylindrical mesh was shown as the filter part 40, it is not limited to this, A flat plate shape or another shape filter may be sufficient.

  Further, in the present embodiment, the drum type washing / drying machine having both the washing function and the clothes drying function has been described. However, the present invention is not limited to this, and the clothes drying machine having no washing function is described. Is also applicable. As an example of the configuration of the clothes dryer, the drum type laundry dryer shown in FIG. For example, as a clothes dryer that does not have a washing function, it is not necessary to connect a water supply pipe or a drain pipe to the water tank 2 of FIG. 1, the water tank 2 is configured as a simple outer tank of the drum 3, and other basic configurations are provided. What is necessary is just to be the same as that of the drum type washing / drying machine of FIG.

  The clothes dryer and the washing dryer according to the present invention can be suitably used for various clothes dryers and washing dryers such as a drum type, a hanging drying type, and a pulsator type.

1 Housing 2 Water tank (outer tank)
3 drums (container)
DESCRIPTION OF SYMBOLS 4 Operation panel 8 Circulating air path 9 Blower part 9a Blower motor 9b Blower fan 10 Detergent input part 11 Outlet 30 Heat pump apparatus 31 Compression part 32 Heating part (Heat dissipation part)
33 Decompression unit 34 Dehumidification unit (endothermic unit)
40 Filter unit 40A First filter unit (filter)
40B 2nd filter part 50 Control board 61 1st support member 62 2nd support member 63 1st support member HEX Heat exchanger

Claims (7)

A housing,
An outer tub supported in the housing;
A bottomed cylindrical drum that is rotatably mounted in the outer tub and accommodates clothes to be dried;
A heat pump device provided in the casing and provided with a heat exchanger for drying clothes in the drum;
A blower for blowing air for drying;
A circulation air passage for connecting the outer tub and the heat pump device to circulate the drying air from the air blowing unit;
A filter provided in the circulation air path, for preventing dust from entering the heat exchanger,
The filter and the heat exchanger are provided in a space above the outer tub in the housing,
The clothes dryer according to claim 1, wherein the filter, the heat exchanger, and the air blower are arranged in this order from the upstream side of the circulation air passage. The heat exchanger includes a heat absorption part in which the refrigerant takes heat from the drying air, and a heat radiation part in which the refrigerant dissipates heat to heat the drying air.
The clothes dryer according to claim 1, wherein the filter is provided in the vicinity of the air introduction surface side in the heat absorption part.   The filter unit is detachably attached to the circulation air passage, and includes a first filter portion for collecting and collecting dust in drying air, and a second filter fixed in the circulation air passage. The clothes dryer according to claim 1, wherein the first filter unit is disposed upstream of the second filter unit. The filter part includes a substantially cylindrical filter partly opened as an inflow part for drying air,
The filter is arranged in the circulation air path so that the flow velocity of the drying air that has passed through the filter is relatively suppressed in the lower part than in the upper part of the heat absorbing part. Item 4. The clothes dryer according to any one of Items 1 to 3. The heat pump device includes a compression unit that compresses a refrigerant, and the heat pump device is provided at an upper portion in the housing and supported by a support member connected to at least one upper part of both side plates of the housing. ,
The said support member is provided in the vicinity of the said compression part, The 1st support member which supports the said heat pump apparatus from the downward direction, The 2nd support member which supports the said heat pump apparatus from the top is characterized by the above-mentioned. The clothes dryer according to any one of 1 to 4.   The clothes dryer according to claim 5, wherein the second support member supports a portion of the heat pump device spaced apart from the compression unit from above. Including the clothes dryer according to any one of claims 1 to 6,
A washing and drying machine for washing clothes in the drum by storing washing water in the outer tub and rotating the drum.

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