JP5075731B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing and drying machine that employs a heat pump mechanism as a heat source of drying air during a drying operation.

  Conventionally, as this kind of washing and drying machine, for example, in a drum type washing and drying machine, a water tank that can store water in a housing is elastically supported via a suspension, and clothes and the like are accommodated in the water tank, and a large number of through holes are formed in a peripheral wall. A rotatable drum is provided, and a washing process such as washing, rinsing, and dehydration, and a drying process can be automatically or selectively operated. In order to increase the efficiency of heat energy used for drying, particularly in the drying process, the drying air heated to a predetermined temperature can be circulated and supplied into the drum through the water tank. For this purpose, a heat pump mechanism is employed as a heat source for generating dry air in the middle of the circulation passages connected to the hot air inlets and outlets provided before and after the water tank, respectively.

  Since this heat pump mechanism dehydrates and dries the laundry at a relatively low temperature with an energy saving effect, it can be expected to have an efficient drying effect such as a high quality finish effect with less wrinkles. An evaporator that consists of a refrigeration cycle in which a refrigerant is circulated in the order of a condenser, an expansion valve, and an evaporator by a compressor, and that cools and dehumidifies the air flowing through the passage at a midpoint of the circulation passage by heat exchange action; And it is set as the structure which has arranged the condenser to heat in order.

  By the way, the heat pump mechanism is positioned below the water tank, and is supported and fixed via a suspension to a base plate that forms the bottom of the casing that forms the outer shell. That is, as an assembling procedure, a heat pump mechanism is mounted and fixed on the base plate from above, and a water tank containing a drum is elastically supported above the suspension, and further, component parts such as water supply means and detergent charging means, and A top plate which is an upper surface plate of the housing is attached and fixed (for example, see Patent Document 1).

  For this reason, to take it out for maintenance inspection or repair of the heat pump mechanism, disassemble it in reverse order of the above assembly procedure, that is, take out the water tank, etc., and finally release the heat pump mechanism from being fixed to the base plate. I was trying to take it out. For this reason, the repair of the heat pump mechanism, etc. is very troublesome and requires a long time. Moreover, the heat pump mechanism is heavy and the heat pump mechanism cannot be easily taken out and installed again.

In view of this, a configuration has been proposed in which the heat pump mechanism, blower fan (circulation fan), and the like are accommodated in a heat insulating box to form a cassette and can be attached to and detached from the installation base (see, for example, Patent Document 2). As a specific attachment / detachment means, a roller is provided on the bottom surface of the heat insulating box, and a groove is formed on the installation base side to a predetermined position corresponding to the roller, thereby restricting the roller position.
Japanese Patent Laying-Open No. 2008-226 (see FIG. 1) Japanese Patent Laying-Open No. 2006-218313 (refer to the specification, page 10, FIGS. 14 and 15)

  According to the said structure (patent document 2), it can be estimated that the heat insulation box becomes easy to move by the point that the heat insulation box can roll by the roller on the bottom surface. However, the groove into which the roller is fitted is for setting a fixed position in the front-rear direction of the roller, and that the roller requires a gap in the groove width for rolling, Since it is a necessary condition to provide a stable installation by providing 6 pieces (for example, 6 pieces), the fitting between the roller and the groove is easy to shift with a gap in the left-right direction, and the installation surface is arc-shaped This roller tends to generate vibrations under an unstable support state, and is not suitable for stably maintaining a predetermined fixed position. For this reason, there are many practical problems such as it is not easy to obtain the connection accuracy between the incorporated heat insulating box and the duct member.

  In order to solve the above-described problems, an object of the present invention is to provide a washing / drying machine in which a heat pump mechanism is unitized and the unit is detachable via a rail mechanism.

In order to achieve the above object, a washing and drying machine according to the present invention includes a casing that forms an outer shell, a water tank that can be stored in the casing, and a rotation that is provided in the tank and has a through hole in a peripheral wall. A possible rotating tank, a circulation passage formed through the water tank, a circulation fan provided to circulate and supply air to the rotation tank through the circulation passage, and to heat the circulation air in the circulation passage A heat pump mechanism provided with a provided heat pump mechanism and a unit case that integrally holds the heat pump mechanism, and a base that detachably supports and fixes the heat pump unit below the water tank and forms the bottom of the housing A board,
The heat pump unit is configured to be slidable with respect to the base plate by a rail mechanism fitted in a state of being prevented from being displaced in the left-right direction, and the back portion of the unit is pressed against the base plate by the sliding so as to be unevenly fitted. in while supporting, by screwing the front portion of the unit along the pressing direction, characterized by being configured to be supported by and fixed to a predetermined position (the invention of claim 1).

According to the above means, the heat pump unit, which is heavy due to the compressor or the like, can slide smoothly through the rail mechanism, and can be easily attached to and detached from the base plate. In addition, since the rail mechanism can move straight without shifting in the left-right direction, when the heat pump unit is incorporated into the base plate, a simple means can be adopted in which the rear part is pressed against the base plate and the front part is screwed, and the screw is tightened. As for the action, it is possible to provide a washing / drying machine that can be expected to further improve workability, such as being able to make the fitting state more firm and securely supporting and fixing in place, and also to suppress the occurrence of vibration from the unit. .

Hereinafter, an embodiment in which the present invention is applied to a drum-type washing / drying machine will be described with reference to FIGS. 2 is an external perspective view of the entire washing / drying machine, and FIG. 3 is a longitudinal side view showing a schematic configuration inside the casing. The overall configuration will be described with reference to FIGS.
A box-shaped housing 1 that forms the outer shell of the washing / drying machine has an operation panel 3 on the upper side and a left and right side on the lower side of the front plate 2 that forms the front of the product. The door 4 opens and closes in the direction, and the lower panel 5 is provided so that the front plate 2 and the outer surface are continuous below. The lower panel 5 is screwed to and removable from the housing 1 such as a base plate 11 to be described later, and a cold air outlet 6 and a handle 7a of the exhaust filter unit 7 are provided at the center facing the outside. (The details will be described later).

  A cylindrical water tank 8 that is substantially non-porous and capable of storing water is provided inside the housing 1, and has a large number of through holes 9 a and baffles 9 b in its peripheral wall and can be rotated around a horizontal axis. A drum 9 as a rotating tank is arranged concentrically. Both the water tank 8 and the drum 9 are arranged so as to be opposed to the door 4 as a clothing input port with a large opening on the front side (the left side in the figure), and are supported in a slightly upwardly inclined state. A water tank 8 is elastically supported by a base plate 11 that forms the bottom of the housing 1 via a suspension 10.

  The drum 9 is directly driven to rotate by a motor 12 formed of, for example, an outer rotor type DC brushless motor provided on the back surface of the water tank 8. In addition, as is well known, a drain line 13 is connected to the bottom of the aquarium 8 to drain washing water out of the machine, and a drain filter device 14 and a drain valve 15 for catching lint and the like along the way (both are described later). 1) is fixed to the base plate 11. The drainage filter device 14 is disposed on the left front side in the housing 1 and the internal filter member is taken out by opening the inspection lid 16 (see FIG. 2) provided corresponding to the left side of the lower panel 5. Inspection and cleaning are possible.

  On the other hand, the water tank 8 is formed with a circulation passage 17 for circulating and supplying dry air into the drum 9 in which clothes are stored during the drying operation. That is, air inlets and outlets are provided at spaced positions in the front and rear portions of the water tank 8, and in the circulation passages 17 respectively connected to the inlets and outlets, a continuous path that bypasses the lower part of the water tank 8 is formed. Specifically, an air supply duct portion 17a connected to the rear portion of the water tank 8, an exhaust duct portion 17b connected to the front portion, and the other ends extending below these duct portions 17a and 17b are connected. It is comprised from the intermediate | middle duct part 17c. In particular, the intermediate duct portion 17c has a duct configuration in which an exhaust filter unit 7, a heat pump unit 18, and a circulation fan unit 19 (described later) provided at the bottom of the housing 1 are continuously formed. Is connected to the supply / exhaust duct portions 17a and 17b and forms a closed space which circulates substantially through the water tank 8.

  Here, the exhaust filter unit 7 will be described, which captures lint and the like from the circulating air (exhaust side), and is disposed on the upstream side of the heat pump unit 18, and the handle 7 a is disposed outside the lower panel 5. By operating from, the internal filter member can be attached and detached. The circulation fan unit 19 is connected to the downstream side of the heat pump unit 18 so that air circulates in the circulation passage 17, and the other end is connected to the lower end of the air supply duct portion 17a. And a unit configuration including a fan motor 19b, which is fixed to the rear portion of the base plate 11.

  On the other hand, the heat pump unit 18 constitutes a heat source for heating and circulating the above-described circulating air into dry air, and will be described with reference to FIGS. 4 shows an external perspective view of the so-called heat pump unit 18 in which the heat pump mechanism 21 is covered and integrated by the unit case 20, and FIG. 5 shows the heat pump mechanism 21 in the unit case 20 by removing a cover member 27 described later. It is a disassembled perspective view shown. First, in FIG. 5, the heat pump mechanism 21 has a configuration having a refrigeration cycle in which refrigerant is circulated in the order of a condenser 23, an expansion valve 24, and an evaporator 25 by a compressor 22 as is well known. The condenser 23 is disposed in order in the direction along the circulating air flow, and is interposed in the intermediate duct portion 17c so as to be able to exchange heat with the circulating air.

  However, as shown in FIGS. 4 and 5, the unit case 20 is configured based on a combination of a resin base member 26 and a cover member 27, and the base member 26 is used for the compressor 22 and the evaporator 25. The base member 26 has an L-shaped cross section extending from the front surface side to the bottom surface portion, and the base member 26 is fixed with components such as a compressor 22, an evaporator 25, a condenser 23, and an expansion valve 24 that constitute the heat pump mechanism 21. The cover member 27 covers the heat pump mechanism 21 from above and from the side.

  More specifically, an opening 26a serving as a passage for the intermediate duct portion 17c is formed in a straight wall portion corresponding to the front side of the evaporator 25 in the front surface of the base member 26 (FIG. 4). The exhaust filter unit 7 is connected to and connected to the exhaust filter unit 7. On the other hand, the rear portion of the condenser 23 is covered with a cover member 27, and has an opening (not shown), both of which are elastic so as to form an airtight continuous passage with the downstream circulation fan unit 19. It is configured to be connected in pressure contact with each other. Therefore, the unit case 20 functions as an element of the intermediate duct portion 17c through which the circulating air passes, and forms the so-called heat pump unit 18 by integrating the heat pump mechanism 21 while suppressing noise from the heat pump mechanism 21. ing.

  Thus, the heat pump unit 18 heats the air circulated in the condenser 23 as a heat exchange function to generate dry air, and the circulation fan 19a of the circulation fan unit 19 passes through the air supply duct portion 17a to the water tank 8. Supplied from the rear entrance, fed into the internal drum 9, and dried while removing moisture from the stored laundry. The air as a dry air containing a lot of moisture after contributing to the drying reaches the intermediate duct portion 17c from the outlet side of the front face through the exhaust duct portion 17b, where the moisture in the air is cooled and dehumidified by the evaporator 25. The heat pump unit 18 functions as a heat source that heats the so-called circulating air and generates the drying air. The heat pump unit 18 shown in FIG. 4 is slidably attached to the base plate 11 as will be described in detail later.

  On the other hand, although the detailed explanation is omitted, the cold air outlet 6 shown in FIG. 2 drives a blower fan 28 provided in the vicinity thereof, and allows an air flow passing only through the evaporator 25 side of the heat pump mechanism 21. In this embodiment, a washing and drying machine provided with so-called cooling means is presented.

  In addition, although not shown, a control device for controlling various operations such as washing and drying is provided, which has a circuit configuration mainly composed of a microcomputer, and rotates the drum 9 based on a pre-stored control program. The motor 12, the compressor 22 of the heat pump unit 18, the circulation fan 19 a of the circulation fan unit 19, the drain valve 15, a water supply valve (not shown), and the like are driven and controlled.

  Next, a configuration in which the heat pump unit 18 is slidably supported and fixed to the base plate 11 will be described with reference to FIGS. 1 and 6 to 10. 1 is an exploded perspective view showing a state in which the heat pump unit 18 is detached from the base plate 11, FIG. 6 is a longitudinal side view of a main part showing a state in which the unit 18 is incorporated in the base plate 11, and FIG. 6 is an enlarged cross-sectional view of a portion indicated by reference numeral A in FIG. 6, FIG. 8 is an enlarged cross-sectional view of the portion indicated by reference numeral B in FIG. 6, and FIG. 9 is a front view showing a state in which the heat pump unit 18 is incorporated in the base plate 11. FIG. 10 is an enlarged front view showing the main part of FIG.

  First, as shown in FIG. 1, the base plate 11 is provided with support legs 29 for installation on the lower surface side of the four corners, and the drainage filter device 14, the circulation fan unit 19 and the like are disposed at predetermined positions on the upper surface. It is attached and fixed to. Then, a plurality of convex rails 30 extending linearly from the vicinity of the front center of the circulation fan unit 19 to the front end portion are integrally formed. In this embodiment, as shown in FIG. A total of three are provided (in the figure, the individual rails are indicated by reference numerals 30a, 30b, and 30c).

  For example, the two convex rails 30a and 30b in the vicinity of the center are both in a form in which the intermediate portion is divided with a slight gap. This will be described later in the explanation of the operation, but this is the rail on the heat pump unit 18 side. When they are fitted and slid, they can slide in a straight line regardless of the divided part, so that each of them substantially functions as one rail. However, the third convex rail 30c is formed at the front portion of the right side of the base plate 11, has a short length, and is closer (closer) to the pitch dimension between the two rails 30a and 30b. Adjacent, formed in parallel to the adjacent convex rail 30b, and the front end of the three convex rails 30 are formed so as to extend substantially to the front end of the base plate 11.

  On the other hand, the bottom surface of the bottom portion of the heat pump unit 18 is provided with three concave rails 31 (referred to as 31a in the individual rails in the figure) that fit in correspondence with the convex rails 30 as shown in FIGS. , 31b, 31c) are projected downward. The concave rail 31 is integrally formed, for example, over the entire length of the bottom lower surface of the base member 26 in the front-rear direction, and basically has a U shape as a rail cross section.

  Such a pair of rail structure which makes the convex rail 30 and the concave rail 31 fit and can slide is comprised, and what is called a rail mechanism is comprised. The fitting state of the rails 30 and 31 is such that the concave rail 31 formed with a concave groove as shown in FIG. 10 is fitted on the convex rail 30 consisting of a single protrusion and is shifted to the left and right. This is a slidable form that does not cause As can be understood from FIG. 10, a narrow groove is provided in the center of the convex rail 30, and is integrally formed with the resin base plate 11, but this is a meat stealing for suppressing molding distortion. It may be provided as necessary.

  As described above, the heat pump unit 18 is configured to be slidable in the front-rear direction on the base plate 11 via the rail mechanism. However, the unit 18 is connected to the circulation fan unit 19 on the downstream side of the circulation air. On the upstream side, it is necessary to fix the exhaust filter unit 7 at a predetermined position where it communicates with the exhaust filter unit 7 side. Therefore, in this embodiment, the rear part of the heat pump unit 18 is pressed against the base plate 11 and supported, while the front part of the unit 18 is fixed along the pressing direction by fixing means (screws including bolts). In this configuration, it is supported and fixed at a predetermined position.

  Hereinafter, the fixing means will be described with reference to FIGS. 1, 6 and 8. In particular, as clearly shown in FIG. 1, cylindrical stoppers 32a are provided at two locations on the left and right of the circulation fan unit 19 of the base plate 11. 32b, and the same stop 32c is provided at one place on the right side in front of these, and therefore, the stop 32 is formed integrally with the base plate 11 at a total of three places. However, as shown in FIG. 8, the concrete shape of the stop portion 32 is a tapered cylindrical shape that tapers toward the rear, and the rear end portion forms a cylindrical portion having an inner diameter smaller than the tapered inner diameter portion. Thus, the step portion 33 is formed at the boundary portion of the inner diameter portion.

  On the other hand, in the rear part of the heat pump unit 18 corresponding to the stop part 32, tapered tapered protrusions 34 are provided at three places (particularly, refer to FIG. 5). Specifically, it is formed so as to project rearward integrally with the base member 26 (or may be a mounting structure), and an elastic bush 35 such as rubber is fitted into the tapered outer diameter portion as shown in FIG. When the bush 35 is inserted into the cylindrical stopper 32 in the combined state and pressed into the stepped portion 33 having a small diameter, it is elastically stopped. That is, when the heat pump unit 18 is slid rearward through the rail mechanism, the protrusion 34 is fitted into the cylindrical stop 32 and is supported by being prevented from sliding further at a predetermined position. It will be.

  In order to fix the heat pump unit 18 at the predetermined position, as shown in FIGS. 1 and 9, the front portion of the unit 18 is fastened and fixed to the base plate 11 at three locations by screws 36. An example of the specific fixing means will be described with reference to FIGS. 6 and 7. Three hollow boss portions 37 are shown at the lower end portion of the front surface of the base member 26 of the unit case 20 made of resin (two locations are shown in FIG. Further, in the drawing, reference numerals 37a, 37b, and 37c are individually provided, and a screw 36 with a hook is screwed through an elastic bush 38 such as rubber to mount a base plate 11 (for example, a screw boss portion 11a). ). This tightening acts in the direction of further compressing the elastic bush 35 in the rear part shown in FIG. 8, thereby determining the final fitting position where the projection 34 is pressed against the stop 32, The heat pump unit 18 is supported and fixed at a so-called predetermined position. In this case, on the side where the heavier compressor 22 is located, the rail mechanism in which the two convex rails 30b and 30c and the concave rails 31b and 31c are fitted is particularly strongly supported.

Next, the operation of the drum type washing / drying machine having the above configuration will be described.
As is well known, in the case of performing from washing to drying, etc., a desired operation course is set on the operation panel 3, and the operation is started by a start operation. In addition, the rotation speed of the drum 9 is controlled to automatically execute washing, rinsing, dewatering, and drying processes.

  Among them, as shown in FIG. 3, in the drying process, dry air is generated by using a heat pump unit 18 which is a heat source for warming air, and the circulation fan unit 19 (circulation fan 19a) is driven to supply the air supply duct portion 17a. Then, it is supplied into the water tank 8 and the rotating drum 9. The drying air comes into contact with the laundry and takes a drying action to remove moisture, is discharged through the front exhaust duct portion 17b, and further reaches the exhaust filter unit 7 and the heat pump unit 18 constituting the intermediate duct portion 17c. Here, the dry air containing a large amount of moisture is cooled by the evaporator 22 and the moisture in the air is condensed and dehumidified, and the dried air is sent to the condenser 20 side, where it exchanges heat with a high-temperature and high-pressure refrigerant. The air is heated to become dry air, and is circulated again through the circulation passage 17 and repeatedly supplied from the water tank 8 into the drum 9 in sequence.

  On the other hand, the case where it is desired to cool the indoor space where the washing / drying machine is installed will be briefly described. When a desired cooling operation is set on the operation panel 3, a control device (not shown) drives the blower fan 28 to open the cold air outlet 6 and drives the heat pump unit 18 (compressor 22). As a result, an air flow opposite to that in the above-described drying operation is generated in the intermediate duct portion 17c, and the cold air generated by passing through the evaporator 22 is blown out of the housing 1 from the cold air blowing port 6. The indoor space such as a washroom or a dressing room where the washing and drying machine is installed is cooled.

  Next, in the case of long-term use of the heat pump unit 18 as described above, a case where the unit 18 is taken out for maintenance inspection or repair related to the refrigeration cycle will be described with reference to the perspective view showing the disassembly process of FIG. . First, the lower panel 5 that forms the front surface of the housing 1 shown in FIGS. 2 and 3 is disassembled from the housing 1 such as the base plate 11 by removing a fixing means by screwing (not shown) and positioned behind the lower panel 5. The exhaust filter unit 7 is dissociated from the heat pump unit 18 connected to the downstream side by screwing means. This state is in the form shown in FIG. 11A, and the heat pump unit 18 and the drainage filter device 14 fixed to the base plate 11 are still located inside the casing 1 (not shown).

  Then, using the front opening from which the lower panel 5 on the front surface of the housing 1 is removed, the three screws 36 that fix the heat pump unit 18 are removed, as shown in FIG. As a result, the heat pump unit 18 is in a restrained state in which the projection 34 at the rear portion thereof is fitted to the cylindrical stopper 32 as shown in FIGS. It will be in a slidable state.

  Thus, as shown in FIG. 11C, by pulling the heat pump unit 18 forward, the fitting state is released, and the unit 18 and the downstream circulation fan unit 19 are elastically pressed. The joined state is also dissociated, and it can slide on the convex rail 30 of the base plate 11 and pull it forward. In this case, the rail mechanism can be operated regardless of the water tank 8 positioned above, and the rail mechanism guides the sliding direction of the heat pump unit 18 without moving to the left and right and moves linearly toward a desired front. Can do.

  As a result, in FIG. 11D and FIG. 1 corresponding to the enlarged view, the heat pump unit 18 is completely removed from the base plate 11. In this case, it can be easily taken out from a relatively small front opening (a range corresponding to the lower panel 5) at the lower part of the housing 1 under the guide action of the rail mechanism. Accordingly, the casing 1 is in a state where the base plate 11 and the circulation fan unit 19 and the drainage filter device 14 fixed to the base plate 11 remain. However, the heat pump unit 18 removes the cover member 27 of the unit case 20 from the base member 26 so that the internal heat pump mechanism 21 is exposed as shown in FIG. Can be repaired.

  In order to incorporate the heat pump unit 18 that has been repaired into the original state, the procedure may be the reverse of the removal procedure (disassembly procedure) shown in FIG. That is, the heat pump unit 18 is inserted from the opening on the front surface of the housing 1. Then, by inserting the three concave rails 31 of the unit 18 into the convex rails 30 of the base plate 11, the rearward movement can be smoothly performed in the rear direction. Under the guide action of the linear movement by the rail mechanism, as shown in FIGS. 6 and 8 and the like, the projecting portion 34 to which the elastic bush 35 is attached is securely fitted to the stopper portion 32 on the base plate 11 side. Supported. At substantially the same time, the rear part (cover member 27) of the unit case 20 of the heat pump unit 18 is joined to the circulation fan unit 19 side.

  In this case, the fitting part of the protrusion 34 and the stopper 32 has a tapered shape that tapers toward the rear, and further, a step 33 is formed in the stopper 32, and an elastic bush 35 is formed thereon. Therefore, the taper-like fitting by this pressing is effective for obtaining a firm position and fixing the position accurately. Moreover, in this embodiment, as is clear from FIG. 8, the elastic bush 34 interposed in the fitting portion is in a supporting form in which the protrusion 34 and the stop portion 32 do not directly contact each other. The configuration is effective for suppressing vibration transmission.

  Accordingly, the heat pump unit 18 disposed on the base plate 11 is fastened and fixed to the base plate 11 (screw boss portion 11a) with the three screws 36. This tightening action makes the fitting of the protrusion 34 and the stopper 32 more firm, and presses the heat pump unit 18 against the circulating fan unit 19 side, further tightening the joining state, As a part of the duct portion 17c, it is effective to obtain a circulating air flow without leakage.

  Next, in FIG. 11A, the exhaust filter unit 7 is connected to the heat pump unit 18 by screwing means (not shown) and is connected to the opening 26 a on the vertical surface of the base member 26. In this case, the exhaust duct portion 17b and the exhaust filter unit 7 are also connected. Then, the assembling work is completed by screwing the lower panel 5 to the lower part of the front surface of the housing 1 and screwing it.

  By the way, although the rail mechanism is effective for guiding the heat pump unit 18 in a predetermined moving direction, the rear end portion of the concave rail 31 on the side of the heat pump unit 18 in the assembling operation (becomes a starting end portion when assembling) It is desirable to easily mesh with the front end portion of the convex rail 30 on the base plate 11 side. However, in the configuration in which the fitting allowance does not shift in the left-right direction as in the above-described embodiment, there is no gap in the left-right direction (width direction) or it is extremely small, so that the first fitting operation is not easy. Therefore, some examples of the configuration of other rail mechanisms that can be easily aligned at the first fitting will be described with reference to FIG.

  In (a), (b), and (c) of FIG. 12, the arrow direction shown in the figure indicates the movement direction when the heat pump unit 18 is assembled, and thus the movement direction of the concave rail, and the concave rail has a shape. In order to clarify the above, a development view seen from the side having the rail is shown as a plan view. The same parts as those in the above embodiment are denoted by the same reference numerals and the description thereof is omitted.

  First, in FIG. 12A, the convex rail 30 on the base plate 1 side has the same configuration as that of the above embodiment, whereas the concave rail 39 on the heat pump unit 18 side is a rear end serving as a starting end portion when assembled. As a guide that can be easily determined for alignment when the tapered portion 39a first meshes with the opposite convex rail 30. Function. The concave rail 39 is formed on the bottom bottom surface of the base member 26 constituting the unit case 20 in the same manner as in the above embodiment.

  On the other hand, in FIG. 5B, the concave rail 31 on the heat pump unit 18 side has the same configuration as that of the above embodiment, whereas the convex rail 40 on the base plate 11 side has a tapered reduction at the front end. The shape has a tapered portion 40a. Even in such a configuration, the counterpart concave rail 31 can be easily meshed with the reduced taper portion 40a in the same manner as described above.

  Further, FIG. 2C shows a rail mechanism composed of a concave rail 41 and a convex rail 42, all of which are tapered, and the rear end portion of the concave rail 41 (becomes the start end portion when assembled) is It can be easily aligned with respect to the convex rail 42 which has an expanding taper shape and is tapered, and can be quickly meshed. In this case, it is needless to say that a shape that is supported in the left and right misalignment state is obtained by obtaining a fitting state at a predetermined position.

  As a result, the concave rail (indicated by reference numerals 39, 31, 41) on the heat pump unit 18 side is relatively rearward (represented by reference numerals 30, 40, 42) on the other base plate 11 side (indicated by reference numerals 30, 40, 42). There is a relationship in which the fitting margin in the left-right direction becomes larger as going to the start end side). For this reason, when the heat pump unit 18 is assembled, the fixed convex rail can be smoothly aligned with the fixed convex rail even if the concave rail on the moving side is slightly misaligned. It facilitates workability when inserting and incorporating from the side of the case 1 after inspection and repair.

According to the said Example, there exist the following effects.
The heat pump unit 18 is slidable with respect to the base plate 11 by a rail mechanism fitted in a laterally prevented state, and the rear portion of the unit 18 is pressed against and supported by the base plate 11 by the sliding. Since the front portion is fastened with the screw 36 along the pressing direction so as to be supported and fixed at a predetermined position, the heat pump unit 18 that is heavy due to the compressor 22 or the like can be smoothly passed through the rail mechanism. And can be easily attached to and detached from the base plate 11.
Therefore, the heat pump unit is lifted upward and removed from the housing after removing the water tank 8 and the like located above, whereas the water tank 8 and the like are still attached and detached from the side of the housing 1 while being incorporated. It is possible and the workability can be greatly improved.

  Moreover, since the rail mechanism can accurately guide the moving direction of the heat pump unit 18 without shifting in the left-right direction, for example, when the heat pump unit 18 is incorporated into the base plate 11 from the side of the lower front surface of the housing 1, the unit 18 The projecting portion 34 as the rear portion can be properly pressed against the stop portion 32 of the base plate 11, so that a simple means for screwing the front portion can be adopted, and the work can be reliably supported and fixed. Thus, it is possible to provide a washing and drying machine that can effectively suppress the occurrence of vibration from the unit 18 supported and fixed on the rail. The protrusions 34 and the stoppers 32 are in a so-called concave / convex fitting form, but the concave / convex relationship can be provided in a reverse arrangement, and the shape is not limited to the shape, and various changes can be made specifically. And can be deployed.

  Further, as disclosed in FIG. 12, in the rail mechanism of the heat pump unit 18 and the base plate 11, the concave rails (indicated by reference numerals 39, 31, and 41) are convex rails (reference numerals in the other base plate 11 side). 30, 40, and 42), since the fitting margin in the left-right direction is relatively increased toward the rear (starting end side), it is easy to align the fitting positions from both sides. In addition, the heat pump unit 18 that is heavy can be efficiently installed and maintained after inspection and repair.

  In addition, since the rail mechanism is configured at a plurality of locations, stable sliding is ensured, which is advantageous in terms of durability. Further, in the specific configuration, the rail mechanism on the side where the compressor 22 that is heavy in the heat pump mechanism 21 is arranged is arranged more than the side where the compressor 22 is not arranged. As a result, it is effective in achieving a stable sliding action and wear resistance due to friction.

  The present invention is not limited to the embodiment described above and shown in the drawings. For example, the rotating tub is not limited to the drum around the horizontal axis, but also to a washing and drying machine having a washing and dewatering tub around the vertical axis. Can be easily diverted. Further, when the heat pump unit is taken out, the exhaust filter unit can be taken out at the same time, but this may be a structure (circulation passage) that remains inside the housing.

In addition, a rail mechanism can be made into the inclined structure which becomes low toward the back from the front where a heat pump unit slides. According to this configuration, for example, when the heat pump unit is taken out of the housing, even if the fixing means such as screwing is released, the heavy unit does not move (slide) carelessly, so it is safe. On the other hand, when assembled, it can be temporarily held at a predetermined position in the stage before fixing, and an effect such as facilitating the subsequent fixing means can be expected.
Also, in the rail shape formed on the heat pump unit and the base plate, various specific shapes that can be fitted and slid with each other are conceivable, and various modifications can be made without departing from the scope of the present invention. Is.

The exploded perspective view which shows the state which removed the heat pump unit in one Example which applied this invention to the drum type washing-drying machine from the baseplate. External perspective view of the entire washer / dryer Vertical side view showing the overall schematic configuration External perspective view of heat pump unit An exploded perspective view showing the heat pump mechanism by removing the cover member of the unit case Longitudinal side view of the main part with the heat pump unit installed on the base plate 6 is an enlarged cross-sectional view of a portion indicated by a symbol A in FIG. 6 is an enlarged cross-sectional view of a portion indicated by a symbol B in FIG. Front view of heat pump unit installed on base plate The front view which expands and shows the principal part of FIG. The perspective view which shows the decomposition | disassembly process (a), (b), (c), (d) of a heat pump unit Plan view showing configuration examples (a), (b), (c) of other rail mechanisms

Explanation of symbols

  In the drawings, 1 is a housing, 2 is an operation panel, 5 is a lower panel, 7 is an exhaust filter unit, 8 is a water tank, 9 is a drum (rotary tank), 11 is a base plate, 17 is a circulation passage, and 17c is an intermediate duct. , 18 is a heat pump unit, 19 is a circulation fan unit, 19a is a circulation fan, 20 is a unit case, 21 is a heat pump mechanism, 22 is a compressor, 23 is a condenser, 24 is an expansion valve, 25 is an evaporator, and 26 is Base member, 27 is a cover member, 30, 40, and 42 are convex rails, 31, 39, and 41 are concave rails, 32 is a stop, 34 is a protrusion, 35 and 38 are elastic bushings, and 37 is a hollow boss Indicates the part.

Claims (4)

A housing forming an outer shell,
A water tank capable of storing water provided in the housing;
A rotatable rotating tank provided in the water tank and having a through-hole in a peripheral wall;
A circulation path formed through the water tank, and a circulation fan provided to circulate and supply air to the rotary tank via the circulation path;
A heat pump mechanism provided to heat the circulating air in the circulation passage, and a heat pump unit comprising a unit case integrally holding the heat pump mechanism;
The heat pump unit is detachably supported and fixed below the water tank, and includes a base plate that forms the bottom of the housing.
The heat pump unit is configured to be slidable with respect to the base plate by a rail mechanism fitted in a state of being prevented from being displaced in the left-right direction, and the back portion of the unit is pressed against the base plate by the sliding so as to be unevenly fitted. The washing / drying machine is configured to support and fix in a predetermined position by screwing a front portion of the unit along the pressing direction.   The rail on the heat pump unit side constituting the rail mechanism is provided on the lower surface side of the unit case, and is configured to increase the fitting margin in the left-right direction toward the rear with respect to the rail on the other base plate side. The washing dryer according to 1.   The washing / drying machine according to claim 1 or 2, wherein the rail mechanism is configured to be inclined downward in a direction of sliding from the front to the rear of the heat pump unit. The rail mechanism is configured to be arranged at a plurality of locations , and the number of the side on which the compressor constituting the heat pump mechanism is arranged is larger than the side on which the compressor is not arranged. The washing / drying machine according to any one of claims 1 to 3.

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