JP4246761B2 - Drum type washer / dryer - Google Patents

Description

  The present invention relates to a drum-type washing and drying machine that performs washing, rinsing, dehydration, and drying steps in a rotating drum that is rotatably supported in a water tank in a horizontal direction or in a direction inclined from the horizontal direction.

  Such a drum type washing and drying machine will be described with reference to the drum type washing and drying machine 1 according to the embodiment of the present invention shown in FIG. The rotating drum 2 is provided in the water tank 3 and generally performs washing, rinsing and dewatering processes by controlling the water supply, drainage and rotation of the rotating drum 2 in the water tank 3, and is a blowing means. The drying process of the laundry is carried out by circulating the air in the water tank 3 through the circulation blowing path 5 provided with the dehumidifying means and the heating means by the blower fan 15 (see, for example, Patent Documents 1 and 2). ).

  Here, the dehumidifying means and the heating means are an evaporator and a condenser constituting an air conditioner connected by a compressor and a refrigerant circuit as an example, and the evaporator introduces the air in the water tank to the circulation air flow path by the air blowing means. And heat exchange through the condenser sequentially to make thirsty hot air heated after dehumidification, so that it can be efficiently dried repeatedly by blowing it into the water tank and exposing it to the laundry in the rotating drum Yes.

  Foreign matter such as lint separated from the laundry in the rotating drum is mixed in the circulating air circulating through the circulating air passage in this drying process, and this clogs the evaporator and condenser, or in the bearing part of the air blowing means. Biting or depositing on each part of the air blowing means causes malfunction. For this reason, the filter which collects a foreign material is provided in the middle of the circulation ventilation path | route as disclosed by patent document 1,2. In many cases, as disclosed in Patent Document 1, this filter is provided on the upstream side of the air blowing means, the dehumidifying means, and the heating means in the circulating air introduction pipe for introducing the circulating air from the drum and the water tank. However, Patent Document 2 adopts a condensing method by injecting cooling water into the dehumidifying means so that the foreign matter can be humidified and dropped simultaneously with the dehumidification of the circulating air. The structure arrange | positioned in this order is disclosed.

In any case, the filter is provided so that it can be attached and detached because foreign matter to be collected accumulates and the passage resistance of the circulating air increases. Patent document 1 is disclosing the filter directly attached and detached from the attachment / detachment opening of the front surface of a washing-drying machine main body with the top plate which block | closes this attachment / detachment opening. Further, Patent Document 2 discloses a heating / filter unit in which a heating unit and a filter chamber are integrated with a lid opened through a loading / unloading port provided on the top surface of the washing / drying machine. A removable filter is disclosed.
JP-A-8-243292 JP 2006-187449 A

  However, the filters are usually provided in a single layer as seen in Patent Documents 1 and 2, and are easily clogged. The one described in Patent Document 2 is provided with a condensing part by injecting cooling water upstream of the filter, and in addition to dehumidification of the circulating air by cooling water, lint in the circulating air is dropped by water injection and separated from the circulating air. However, it requires a special condensing part and management, so it is expensive and difficult to use due to complicated maintenance such as separation and recovery of lint in water.

  An object of the present invention is to provide a drum-type washing / drying machine having a double filter structure that is more reliable in collecting foreign matters such as lint and that is convenient for filter clogging.

The present invention for achieving the above object, a rotary drum in which a large number of through holes are formed rotationally driven by housing the laundry is provided in the water tank, the water supply of the water tank, waste water and the rotation of said rotary drum washing the control of, rinsing, with carrying out the steps of dehydration, the drying process of the laundry is carried out by circulating through circulating air passage having a dehumidifier and a heating means air in the water tank by the blowing means, wherein in the drum type washing and drying machine comprising a filter chamber for mounting to allow detachable filter which mainly collecting foreign matter such as lint in the middle of circulating air passage, from the filter, the circulating air inlet of the filter chamber enters the main filter acting earlier to the circulating air discharged into the circulating air outlet, then without the double filter structure with the backup filter acting, the back Ppufiruta is removed later mounted ahead said main filter, said main filter has a relationship to be taken earlier mounted later than the backup filter, the backup filter, the circulation of the filter chamber An auxiliary support frame having a bowl shape that fits into a lower half portion provided with an air discharge port, and supporting a filter material inside the circulating air discharge port, wherein the main filter includes the filter chamber and An upper half part which forms a bowl shape substantially along the inner surface of the backup filter attached thereto, introduces the circulating air from the circulating air introduction port provided in the upper half part of the filter chamber, and the attached backup part The filter material is supported inside the filter material supported by the filter, and the circulating air is exhausted by a double filter structure with the backup filter. A main support frame having a part, and characterized in that it satisfies the antecedent relationship antecedent relation and removable act with respect to the exhaust circulating air.
According to such a configuration, the main filter and the backup filter have a double filter structure and work in tandem with the circulating air introduced into and discharged from the filter chamber, and sequentially pass through the main filter and the backup filter twice. Therefore, foreign matters such as fine lint can be reliably collected. In addition, most foreign matters are collected by the main filter material that passes first and are easily clogged to about a single filter, but the main filter is attached to the backup filter later and is taken out before the backup filter. The backup filter can be left alone in the filter chamber and attached or detached to handle clogging. In addition, the backup filter does not hang the filter material it supports on the circulating air inlet by the saddle-shaped sub-support frame substantially along the inner surface of the lower half where the circulating air outlet of the filter chamber is provided, Also, on the condition that the bypass is not bypassed, not only the range corresponding to the circulating air discharge port, but also the filter material should be provided in a wide area outside the circulating air discharge port to allow the circulating air to pass to the circulating air discharge port. It becomes less likely to be clogged as the passage area of the circulating air increases. The main filter is provided with a bowl-shaped main support frame having upper and lower halves substantially along the inner surface of the backup filter mounted on the upper half and the lower half of the filter chamber. Provide a filter material in a wide area outside the circulating air discharge port as well as the range corresponding to the circulating air discharge port, provided that it does not get caught in the introduction port and bypassed. Accordingly, the passage of the circulating air toward the circulating air discharge port is less likely to be clogged by the increase of the passage area of the circulating air using the size of the filter chamber. In addition, circulating air is introduced into the upper half corresponding to the circulating air inlet provided in the upper half of the filter chamber, and the filter is provided inside the circulating air outlet and backup filter in the lower half of the filter chamber. The material is guided to the lower half supporting the material, and is smoothly discharged through the filter material of both the main filter and the backup filter to the circulating air outlet using the full size of the filter chamber.

The backup filter, both of the partition boundary to the backup filter and circulating air outlet side and an independent exhaust space of the filter chamber, the partition boundary to the independent exhaust space between the main filter and the backup filter, According to the further structure which provided the 1st seal packing which seals,
Circulating air introduced into the filter chamber and the upper half of the main support frame does not bypass the independent exhaust space between the main filter and the backup filter, and independent between the backup filter and the circulating air outlet side of the filter chamber. After passing through the exhaust space sequentially and removing foreign matter in the double filter structure, it is circulated through the circulation air discharge port, so that high foreign matter collecting performance in the double filter structure is ensured.

The first seal packing is fitted to the outer periphery of the auxiliary support member, a first stepped portion facing the circulating air inlet side formed on the inner surface between the half and the lower half portion on the filter chamber , between opposed portions of the second stepped portion facing the circulating air discharge side formed on the outer surface between the half and the lower half portion on the main support frame, said filter chamber of the main filter and backup filter by with scissors by attachment to a predetermined position, and the pressure-contact seals to both the first stage portion and the second step portion, according to a further arrangement,
With a simple sealing structure by one first seal packing, the two partition boundary portions can be sealed by sandwiching the main filter, the filter chamber using the fitting of the backup filter to the filter chamber, and the main filter. it can.

The first seal gasket is attached to a flange portion provided to face the first stepped portion and the second stepped portion in the sub-supporting frame, said first stepped portion from the mounting base to the flange portion and seal lips extending respectively in the second stage portion is in pressure-contact respectively to said first step portion and the second step portion, according to a further arrangement,
The first seal packing is firmly backed up by the flange portion of the sub-supporting frame of the backup filter, and the two seal lips extending from the mounting portion to the flange portion are connected to the first step portion and the second step portion facing each other. It can be well adapted to the entire circumference and securely brought into pressure contact so that no air leakage occurs.

The main filter has a top plate for closing the access opening to the filter chamber which is open to the outer surface of the washing and drying machine main body, the main support frame extends from the top plate to the filter chamber side, and the upper half of the main support frame second seal packing is mounted on the outer periphery between the top plate and the second seal packing, of the mounting port of the inner filter chamber when worn to a predetermined position of the filter chamber of the main filter According to a further configuration in which the attachment / detachment port is sealed by being pressed against the third step provided on the periphery,
The main support frame that extends from the top plate is attached to the filter chamber with a filter material at a predetermined position in the filter chamber so that the top / bottom plate covers the attachment / detachment opening. The filter chamber can be sealed by bringing the second seal packing provided on the outer periphery of the portion into pressure contact with the third step on the inner periphery of the attachment / detachment port.

The second seal packing is mounted on the flange portion of the main support frame, the sealing lip extending in the third step portion side from the mounting base to the flange portion is pressed against the third step portion, further configured According to
The second seal packing is firmly backed up by the flange part of the main support frame of the main filter, and the seal lip extending from the mounting part to the flange part is well adapted to the entire circumference of the third step part where the seal lip faces and securely press-contacts. And no air leakage occurs.

Between the main filter and the filter chamber is provided with a resilient engagement portion mutually engaged resiliently engaged when worn to a predetermined position of said main filter, according to a further arrangement,
When the main filter is attached to the predetermined position of the filter chamber, the elastic engagement portion between the main filter and the filter chamber is elastically engaged, so that the main filter is held in the predetermined position, and the second filter welding of the third step portion of the inner periphery of the seal packing and the detachable mouth side, a first stepped portion between the halves and lower the upper half of the first sealing gasket and the filter chamber and the main support frame of a backup filter and Since the pressure contact state with the second step portion is maintained, it is possible to prevent the main filter from being inadvertently loosened and causing air leakage.

Elastic engagement portion is a combination of the engaging recess or an engaging hole and the resin spring portion, the resin spring portion may be detachable, in a further arrangement,
The elastic engagement part can be easily engaged with and disengaged from the engagement hole or the recess when the main filter is attached / detached by utilizing the soft elasticity of the resin spring, and does not particularly interfere with the attachment / detachment of the main filter. The user can be notified of the completion of mounting and the start of removal with a click feeling or click sound that is elastically engaged at the final stage and at the beginning of removal, and the elastic engagement is released. Moreover, the resin spring is easy to break, but can be replaced independently, so that it can be easily and inexpensively handled.

Wear Datsukuchi is formed on the top surface of the washing and drying machine body, according to a further arrangement,
To collect foreign matter such as lint through the main filter and backup filter installed in the filter chamber in the middle of the circulation ventilation path, these filters are attached and detached at the top of the washing and drying machine main body, which is relatively tall. Therefore, a condition that makes it easy to avoid a person or the like from getting caught and slacking is satisfied.

Main filter and backup filter is provided with a magnet, respectively, the filter chamber, the main filter and the backup filter the magnet and responsive to a pair of output electrical signals to the outside face individually when mounted in a predetermined position According to a further configuration comprising a filter detection switch of
If both the main filter and the backup filter are not installed, an electric signal for control that prohibits the use can be provided to the outside, and in particular, the use without a backup filter that does not appear can be prevented. The filter function can be guaranteed.

According to the present invention, foreign matter such as lint in the circulating air that circulates in the circulating air passage in the drying process is reliably collected by the double filter structure of the main filter and the backup filter. Therefore, high maintenance performance of equipment such as dehumidifying means, heating means, and air blowing means can be obtained. In addition, clogging of the main filter and to the processing can be performed easily by itself does not change the case of a general single filter, clogging gas Kunaku for backup filter, to a single drawer of the main filter each time processing is required Then, it can be pulled out independently and handled in the same way, so handling is not particularly troublesome.

  In the drum type washing / drying machine 1 shown in FIG. 1 according to the embodiment of the present invention, the water tank 3 is suspended in the washing / drying machine main body 44 by a suspension structure (not shown), and the water tank 3 has a bottomed cylindrical shape. The formed rotating drum 2 is disposed such that its axial direction is inclined downward from the front side to the back side. A clothing doorway 11 leading to the opening end of the rotary drum 2 is formed on the front side of the water tank 3, and a door 9 that closes the opening provided on the upward inclined surface formed on the front side of the washing and drying machine main body 44 so as to be openable and closable. The laundry can be taken in and out of the rotary drum 2 through the clothing entrance 11. Since the door 9 is provided on the upward inclined surface, the work for putting in and out the laundry can be carried out without bending the waist, and generally the workability of the drum type washing machine for taking in and out the laundry from the sideways opening is provided. The evil has been improved.

  The rotating drum 2 is formed with a large number of through holes 8 communicating with the water tank 3 on its peripheral surface, and provided with stirring protrusions (not shown) at a plurality of positions on the inner peripheral surface. The rotating drum 2 is rotationally driven in the forward and reverse directions by a motor 7 attached to the back side of the water tank 3. Further, a water injection pipe 12 and a drain pipe 13 are connected to the water tank 3, and water is poured into and drained into the water tank 3 by control of a water injection valve and a drain valve (not shown).

  When the door 9 is opened and laundry and detergent are put into the rotating drum 2 to start the operation of the drum-type washing / drying machine 1, a predetermined amount of water is injected into the water tank 3 from the water injection pipe 12. As a result, the rotary drum 2 is rotationally driven to start the washing process. By the rotation of the rotating drum 2, the laundry accommodated in the rotating drum 2 is lifted in the rotating direction by the stirring protrusion provided on the inner peripheral wall of the rotating drum 2, and the stirring operation of dropping from the lifted appropriate height position Is repeated, so that the laundry has the effect of tapping and washing. After the required washing time, the dirty washing liquid is discharged from the drain pipe 13, and the washing liquid contained in the laundry is dehydrated by a dehydrating operation that rotates the rotating drum 2 at a high speed. Rinsing is performed by pouring water from the passage 12. Also in this rinsing step, the laundry stored in the rotary drum 2 is rinsed by repeating the stirring operation of being lifted and dropped by the stirring protrusion 4 by the rotation of the rotary drum 2.

  The drum-type washing / drying machine 1 has a function of drying laundry stored in the rotary drum 2. The air in the water tank 3 as shown in FIGS. 1 and 2 is exhausted to dehumidify and heat. The circulation air flow path 5 described above for blowing the dried air into the water tank 3 again is formed. As described above, it is general that a dehumidifying means such as an evaporator 31, a heating means such as a condenser 32, and a blower fan 15 as a blowing means are provided in the middle of the circulating air flow path 5 as shown in FIG. 1. By rotating and driving the blower fan 15, air in the circulation blower path 5 is generated and the air in the rotary drum 2 containing the laundry flows from the water tank 3 to the blower fan 15 through the through holes 8. Between the condenser 32 that is exhausted to the circulating air introduction pipe 16 and dehydrated by dehydrating the evaporator 31 located upstream of the blower fan 15 and that is heated to about 400 ° C. as described above. By heating by heat exchange, it is always dry and hot air. This dried high-temperature air is sent from the blower fan 15 to the blower duct 33 to the water tank 3 and blown into the water tank 3. The high-temperature dry air blown into the water tank 3 enters the rotary drum 2 through the through holes 8 and escapes to the water tank 3 while being exposed to laundry such as clothes, and is again introduced into the circulating air introduction pipe line 16. The drying process is carried out by repeating the circulation of the air in the circulating air flow path 5 described above.

  Further, in the drying process using the circulating air passage 5, foreign matters such as lint generated from laundry such as clothes are circulated in the air circulated through the circulating air passage 5, and the evaporator 31 and the condenser 31 are condensed. It is difficult to carry out a drying process such as clogging of the vessel 32, biting into the rotating part of the blower fan 15, and accumulation on the inner surface of the blower fan 15, and frequent troublesome maintenance is required. From the middle of the circulating air flow path 5, specifically, the upstream side of the evaporator 31, the condenser 32, and the blower fan 15, and accordingly, in the middle of the circulating air introduction pipe line 16 as shown in FIGS. It is common to provide a filter chamber 36 that houses a main filter 35 that removes foreign matter in the circulating air. As a result, even if foreign matter is mixed into the air after the laundry is dried and introduced into the circulating air introduction pipe 16 side on the evaporator 31 side, it is collected by the main filter 35 when passing through the filter chamber 36. And is not mixed into the circulating air downstream. Therefore, the functions of the evaporator 31, the condenser 32, and the blower fan 15 are maintained for a long time. On the other hand, however, there is a problem in that the collected foreign matter accumulates on the main filter 35 in the filter chamber 36, and the passage resistance of the circulating air gradually increases, thereby lowering the drying function. Is provided so as to be detachable as described in Patent Documents 1 and 2 described above.

  The evaporator 31 and the condenser 32 are handled as an air conditioner 39 as shown in FIG. 1 housed in one container 38 together with a compressor 37 connected by a refrigerant circuit for circulating a refrigerant therethrough. The air inlet 41 side of the blower fan 15 is coupled to the exhaust port 41 side for exhausting air after dehumidifying and heating the introduced air of 39 with a vibration-proof structure portion between them and integrated. As a result, the compressor 37, the evaporator 31, and the condenser 32 are combined into a container body 38, and the two air conditioners 39 and the blower fan 15 are combined into a single unit suitable for mass production. Thus, each of the four devices, that is, the compressor 37, the evaporator 31, the condenser 32, and the blower fan 15 is related as an air conditioning / blower unit 81 that forms a part of the circulation blower path 5 and achieves a predetermined function.

  In the present embodiment, in order to solve the problems such as those described in Patent Documents 1 and 2, the filter 91 typified by the main filter 35 is provided in the washing / drying machine main body 44 in order to provide the main filter 35. From the attachment / detachment port 51 shown in FIGS. 1 and 3 to 5 opened in the top surface 44a, the filter chamber 36 is attached / detached through an attachment / detachment path 52 inclined forward from the lower part to the upper part. In this way, the circulating air circulating through the circulation air passage 5 in the drying process is passed through the main filter 35 attached to the filter chamber 36 in the middle of the circulation air passage 5 to collect foreign matters such as lint. The main filter 35 satisfies a condition that it is easy to avoid a person or the like from being inadvertently caught and loosened by being attached and detached at the top surface 44a of the relatively tall washing and drying machine main body 44, From the attachment / detachment opening 51 opened on the top surface 44a of the washing / drying machine main body 44, it is easy to produce a forward drooping component in the attachment / detachment force due to attachment / detachment through a vertical attachment / detachment path such as that described in Patent Document 2. Compared with a thing, it can be attached and detached smoothly without difficulty in the direction along the attachment / detachment path 52 inclined forward from the lower part to the upper part where it is difficult to bend. For this purpose, it is preferable that the filter chamber 36 that follows from the attachment / detachment port 51 can be guided by the attachment / detachment path 52 that is inclined over the entire attachment / detachment stroke of the main filter 35 to a predetermined position.

  Further, as shown in FIGS. 2, 3, 5, 7, and 8, the main filter 35 has a top plate 53 that closes the attachment / detachment port 51. It is assumed that a cue recess 56 having a lid 55 that pushes upward from above is provided. Thus, by attaching the main filter 35 through the attachment / detachment opening 51, the attachment / detachment opening 51 is finally closed by the top plate 53 so that the appearance is substantially flush as shown in the figure. Can be more easily caught, and can be pulled out and attached stably by placing a finger on the hand-carrying recess 56 provided on the top plate 53. In particular, since the clasp recess 56 is always closed by the lid 55 on which the closing spring 54 works, the clasp recess 56 is unlikely to cause inadvertent catching by a person or the like. Since the lid 55 is pushed open by the operation of applying a finger, the main filter 35 can be easily and easily attached / detached by applying the finger without any special work. In addition, the cue recess 56 forms a rearward cue edge 56a for placing a finger on the front part of the opening, and this cue edge 56a is located in the center of the top plate 53 in the front-rear direction or slightly closer to the front. In order to hang a finger on the clasp recess 56, a clasp edge 56a facing backward is provided at the front portion of the opening, so that the arm extends from the front onto the top surface 44a of the washer / dryer main body 44 and the clasp recess The main filter 35 can be pulled out easily and reliably by the natural action of putting a finger in the hand 56 and bending it easily and without slipping, and along the outer surface of the top plate 53 and the finger part hooked on the hand edge 56a. Holding the top filter 53 between the palm and holding the main filter 35 stably, handling such as carrying after drawing and mounting to the filter chamber 36 can be performed easily and stably. . Further, since the rear portion of the lid 55 is hingedly connected to the rear portion of the opening of the handle recess 56 by a hinge pin 57, the handle edge 56a is opened by pushing the lid 55 open when the finger is put into the handle recess 56, and the finger is left as it is. Therefore, it is possible to easily perform the finger-hanging operation on the cue recess 56 for attaching and detaching and the cue edge 56a with a continuous behavior.

  More specifically, as shown in FIGS. 5, 7, and 8, the main filter 35 is formed by supporting a main filter material 79 on a main support frame 71 that is integrally formed or connected so as to extend downward from the top plate 53. A seal packing 73 made of silicon rubber or the like is attached to the outer periphery of the lower portion of the top plate 53 of the main support frame 71 so as to be positioned inside the circulating air discharge port 72 shown in FIG. When the seal packing 73 is mounted at a predetermined position, the seal packing 73 is pressed against the stepped portion 74 on the inner periphery of the attachment / detachment port 51 to seal the filter chamber 36, and the main filter 35 and the filter chamber 36 are sealed. An elastic engagement portion 75 as shown in FIGS. 5 and 9 that engages elastically when the main filter 35 is mounted at a predetermined position is provided therebetween. As a result, the main support frame 71 extending downward from the top plate 53 is inserted into the filter chamber 36 with the main filter material 79 only by attaching the main filter 35 to the filter chamber 36 so as to block the attachment / detachment port 51 with the top plate 53. The seal packing 73 provided on the outer periphery of the lower portion of the top plate 53 of the main support frame 71 at a predetermined mounting position is pressed against the inner peripheral step 74 inside the attachment / detachment port 51 and the elastic engagement portion 75 is elastic. The filter chamber 36 is maintained in a sealed state by the engagement, and the main filter material 79 can be correctly positioned inside the circulating air outlet 72 of the filter chamber 36. In particular, the mounting portion of the seal packing 73 of the main support frame 71 is a flange portion 71a facing the step portion 74 of the filter chamber 36, and the seal packing 73 extends from the mounting portion 73a to the flange portion 71a and presses against the step portion 74. Therefore, the seal packing 73 is firmly backed up by the flange portion 71a of the main support frame 71 so that the seal lip 73b is placed on the entire circumference of the inner peripheral step portion 74 inside the attachment / detachment port 51. It can be adapted to be in contact with each other and surely pressed, and no air leakage occurs. Further, since the mounting portion 73a is reinforced by the backup of the flange portion 71a, a thin one is sufficient. Here, the attachment / detachment port 51 is formed in the top surface wall 44b that forms the top surface 44a of the washing / drying machine main body 44, whereas the stepped portion 74 that seals the filter chamber 36 with the seal packing 73 is directly below the attachment / detachment port. It is formed on the inner periphery of the opening 36d of the filter chamber 36 that is positioned and supported.

  As shown in FIGS. 3 to 5 and 9, the attachment / detachment port 51 that opens to the top wall 44 b has a dam portion 44 c that rises from the top surface 44 a on the entire periphery, and the main filter 35 that is mounted inside the dam portion 44 c. It is assumed that a concave portion 44d for fitting the top plate 53 is provided. As a result, the top plate 53 does not protrude from the concave portion 44d alone to the top surface 44a so that a person or the like is not caught, and even if a little water spills on the top surface 44a, the top plate 53 is dammed by the dam portion 44c. It is possible to prevent entry into the outlet 51 and prevent damage to the electrical equipment in the washing / drying machine main body 44. Further, the top plate 53 has a convex wall 53a projecting downward on the outer periphery, and the concave portion 44d is a fitting that serves as a seal to receive the convex wall 53a between the peripheral wall 44e and the upward convex portion 44f of the inner periphery. It has a structure to receive the top plate 53. Even if water enters the attachment / detachment port 51, the sealing function by the seal fitting structure with the top plate 53 in the recess 44d is provided. It is possible to prevent the inside of the attachment / detachment port 51 from extending, and further safety of the electrical equipment can be achieved. Furthermore, the top plate 53 is made slightly lower than the dam portion 44c. As a result, even when water reaches the weir portion 44c, it is possible to suppress the wetting and shifting to the top plate 53 side that has dropped due to the surface tension of the water, and this also increases the safety of the electrical equipment.

  As shown in FIG. 9, the elastic engagement portion 75 is a combination of an engagement recess or an engagement hole 75a shown in the drawing and a resin spring 75b as shown in the drawing, and the resin spring 75b is detachable. Thereby, the elastic engagement portion 75 can be easily engaged with and disengaged from the engagement hole 75a when the main filter 35 is attached / detached by utilizing the soft elasticity of the resin spring 75b, and does not particularly interfere with the attachment / detachment of the main filter 35. Then, it is possible to notify the user of the completion of the mounting and the start of the removal with a click feeling or a clicking sound that elastically engages at the end of the mounting and at the initial stage of the removal, and the elastic engagement is released. Moreover, the resin spring 75b is fixed at both ends and has an engaging portion 75b1 bent in a mountain shape in the attaching / detaching direction of the main filter 35 that engages with the engaging hole 75a between the both ends, so that the tension force is slightly increased. At the same time, it has high durability. The angle of the resin spring 75b is such that the rising angle in the mounting direction of the main filter 35 is larger than the rising angle in the pulling direction, and it is on the attachment / detachment path 52 to the engagement hole 75a immediately after the mounting of the main filter 35 is completed. Since the step 75a1 and the side with the higher rising angle begin to engage and the mounting resistance is slightly increased, the mounting can be terminated while the user senses that the mounting is nearing completion. In addition, there is a relation that the main filter 35 is not inadvertently detached by attaching / detaching through the upward attaching / detaching opening 51, and at the initial drawing out of the main filter 35, the main hole 35 is connected to the main hole 35a from the engagement hole 75a on the small rising angle side. Applying a smaller resistance than when the filter 35 is completely attached and allowing the user to feel that the extraction has started, while allowing the user to experience a pull-out state without resistance due to disengagement due to the disengagement. become. In addition, the resin spring 75b is easily broken, but can be replaced independently, so that it can be easily and inexpensively handled. For this purpose, the resin spring 75b is provided on the main support frame 71 side of the main filter 35 as shown in FIGS. 8 and 9, and is exposed to the outside of the main support frame 71 when the main filter 35 is pulled out. Easy to replace. For this replacement, two resin springs 75b are integrally formed on the left and right sides of the back portion of the box body 76 opened forward, and the box body 76 is fitted to the back portion of the main support frame 71 on the opening side. The screw 77 shown in FIG. 9 is screwed to be detachable. Correspondingly, the engagement hole 75 a is provided on the back wall side of the attachment / detachment path 52, and the main filter 35 to be attached / detached slides with the elastic engagement portion 75 positioned on the front wall of the attachment / detachment path 52. At this time, it is possible to prevent the resin spring 75b from being slidably brought into contact with the front wall of the attachment / detachment path 52 within a range where the resin spring 75b is not required.

  The main support frame 71 has a bowl shape as shown in FIGS. 5, 7, and 8 substantially along the inner surface of the filter chamber 36, and the filter chamber shown in FIGS. 5 and 6 below the mounting portion of the seal packing 73. The main filter material corresponding to the upper half 71b that introduces the circulating air from the circulating air inlet 78 provided in the upper half 36b of the 36 and the circulating air outlet 72 provided in the lower half 36c of the filter chamber 36. It has a lower half 71c supporting 79. As a result, the main support frame 71 has a bowl shape and is positioned so as to be substantially along the inner surface of the filter chamber 36, and the upper half corresponding to the circulating air introduction port 78 provided in the upper half 36 b of the filter chamber 36. Circulating air is introduced into the portion 71 b and led to the lower half portion 71 c supporting the main filter material 79 inside the circulating air discharge port 72 in the lower half portion 36 c of the filter chamber 36 and circulated through the main filter material 79. The air can be smoothly discharged to the air discharge port 72 by using the full size of the filter chamber 36. In addition, the main filter material 79 is not hung on the circulating air inlet 78 and, if necessary, not to be bypassed, as well as the range corresponding to the circulating air outlet 72, as shown in FIG. The area of the filter chamber 36 can be used to provide the main filter material 79 in a wide area outside 72 and to pass the circulating air toward the circulating air discharge port 72 as indicated by an arrow in the figure. As a result, clogging is less likely to occur due to an increase in the circulating air passage area of the main filter material 79.

  In this case, both the filter chamber 36 and the main filter 35 attached thereto are inclined as shown in FIG. 1, and the inner surface of the filter chamber 36 is an attachment / detachment opening formed in the top wall 44 b of the washing / drying machine main body 44. An attachment / detachment path 52 leading to 51 is formed.

Moreover, as shown in FIGS. 5 and 7, the filter 91 of the present embodiment works first against the circulating air that enters from the circulating air inlet 78 of the filter chamber 36 and is discharged to the circulating air outlet 72. The above-described main filter 35 has a double filter structure with a backup filter 82 that operates thereafter. The backup filter 82 is mounted before the main filter 35 and is taken out later. The main filter 35 is extracted from the backup filter 82. also it is provided with a relationship that is later retrieved mounted destination, for a single retrieval from a lower half portion 36c that Do and the inner side of the filter chamber 36 of the backup filter 82, inside the front wall 101b A cue recess 133 is provided to allow the fingers to be hung. The backup filter 82 is attached by being slid into the filter chamber 36 from above and guided to a predetermined position by the attachment / detachment path 52.
For this purpose, a backup filter 82 having a bowl-shaped sub-support frame 101 along the inner surface of the lower half 36c of the filter chamber 36 in the backup filter 82 around the lower half 71c of the main support frame 71 in the main filter 35 is provided. The sub filter material 83 is supported outside the main filter material 79 so as to cover it. Thus, after the backup filter 82 is attached to the lower half 36c of the filter chamber 36, the main filter 35 is attached to the inside of the upper half 36b of the filter chamber 36 and the subsequent backup filter 82 and introduced into the filter chamber 36. Circulating air can satisfy the double filter structure that passes through the main filter material 79 of the main filter 71 and the sub filter material 83 of the backup filter 82 in a double manner and exits to the circulating air discharge port 72. As a result, foreign matters such as fine lint are reliably collected by the main filter material 79 and the sub filter material 83 which are thin and have low air resistance, so that the functions of the devices such as the evaporator 31, the condenser 32 and the blower fan 15 are collected. Therefore, since most foreign matters are collected by the main filter material 79 that passes first, clogging frequently occurs on the side of the main filter material 79, and on the side of the sub filter material 83. The number of clogging is extremely less than that of the main filter material 79.

  Therefore, when the main filter 35 and the backup filter 82 are attached, the main filter 35 leaves the backup filter 82 in the lower half portion 36c of the filter chamber 36 and pulls it out first, so that the backup filter 82 is frequently clogged. The backup filter 82 can be easily attached and reattached, and the backup filter 82 is pulled out after the main filter 35 only when clogging processing is necessary, and the main filter 35 is attached after the clogging processing is performed prior to the main filter 35. It returns to the use state by attaching. Therefore, handling is not particularly troublesome.

  Corresponding to such a double filter structure of the main filter 35 and the backup filter 82, the backup filter 82 includes a circulating air outlet of the backup filter 82 and the filter chamber 36 as shown in FIGS. A seal made of silicon rubber or the like that seals both a partition boundary portion 92 having an independent exhaust space 95 on the side of 72 and a partition boundary portion 93 having an independent exhaust space 96 between the main filter 71 and the backup filter 82. A packing 94 is provided. Thus, the circulating air introduced into the filter chamber 36 and the upper half 71b of the main support frame 71 is not bypassed, and the independent exhaust space 96 between the main filter 71 and the backup filter 82, the backup filter 82, and the filter chamber 36. As shown by the arrows in FIG. 5, the independent exhaust space 95 between the circulating air discharge port 72 and the circulating air discharge port 72 is sequentially passed through to the circulation air discharge port 72 after removing the foreign matter of the double filter structure.

  Here, as shown in FIG. 5, the backup filter 82 has a sub-support frame 101 having a bowl shape that fits into the lower half portion 36c provided with the circulating air discharge port 72 of the filter chamber 36, and is circulated. The sub-filter material 83 is supported inside the air discharge port 72, and the main filter 35 has a bowl shape substantially along the inner surface of the backup filter 82 mounted on the upper half 36b and the lower half 36c of the filter chamber 36. An auxiliary filter that is supported by an upper half 71 b that introduces circulating air from a circulating air inlet 78 provided in the upper half 36 b of the filter chamber 36 and a backup filter 82 that is attached to the lower half 36 c of the filter chamber 36. A main support frame 71 having a lower half portion 71c that supports the main filter material 79 on the inner side of the material 83 and discharges circulating air in a double filter structure with the backup filter 82. To satisfies the antecedent relationship of the discharge circulating air to the front-rear relationship and removable work.

  The seal packing 94 is attached to the outer periphery of the sub-support frame 101 as shown in FIGS. 5, 7, and 9, and the upper half 36b and the lower half of the filter chamber 36 are shown in FIGS. Circulating air exhaust formed on the outer surface between the stepped portion 102 formed on the inner surface between the portion 36c and facing the circulating air introduction port 78 and the upper half 71b and the lower half 71c of the main support frame 71. By sandwiching the main filter 35 and the backup filter 82 by mounting the filter chamber 36 in a predetermined position between the facing portions of the step portion 103 facing the outlet 72 side, both the step portions 102 and 103 are pressed against and sealed. Like to do. Accordingly, the two partition boundary portions 92 and 93 can be sealed by using one seal packing 94 by using the fitting of the main filter 35 and the backup filter 82 to the filter chamber 36. The main filter 35 is held by an elastic engagement portion 75 that elastically engages when the filter chamber 36 is mounted at a predetermined position, and is prevented from inadvertently loosening and causing air leakage. Moreover, as shown in FIGS. 5, 7, and 9, the seal packing 94 is mounted on the flange portion 101a facing the both step portions 102 and 103 of the sub-support frame 101, and from the mounting portion 94a to the flange portion 101a. As shown in FIG. 5 and FIG. 7, seal lips 94b and 94c extending to both step portions 102 and 103 are pressed against these step portions. As a result, the seal packing 94 is firmly backed up by the flange portion 101a of the sub-support frame 101, and the seal lips 94b and 94c are well fitted to the entire circumference of both step portions 102 and 103, so that air leakage does not occur. Can be.

  Further, as shown in FIG. 7, the main filter 35 and the backup filter 82 are provided with magnets 111 and 112, respectively, and the filter chamber 36 is provided with the main filter 35 and the backup filter 82 as shown in FIG. When mounted at a position, it includes a filter detection device 113 having a built-in pair of filter detection switches that individually react with the magnets 111 and 112 and output an electric signal to the outside. As a result, if both the main filter 35 and the backup filter 82 are not mounted under the control of the control board 67 provided inside the operation panel 66, the use can be prohibited. Since the attachment / detachment opening 51 such as the main filter 35 is located on the top surface 44a of the washing / drying machine main body 44, the operation panel 66 is not obstructed by the attachment / detachment opening 51 on the front surface of the washing / drying machine main body 44 as shown in FIG. As shown, it can be provided widely, and even if there are many operation units and display units corresponding to multiple functions, it is easy to operate and easy to see.

  Further, as shown in FIG. 7, the main filter 35 is circulated having an open state opening 121 through which circulating air is introduced from a circulating air introduction port 78 provided in the upper half 36 b on the filter insertion side of the filter chamber 36. Circulating air discharge supporting the main filter material 79 corresponding to the circulating air discharge port 72 provided in the upper half 71b on the air introduction side and the lower half 36c on the back side of the filter chamber 36 as described above. A main support frame 71 having a lower half 71c on the side is provided, and an upper half 71b on the circulating air introduction side of the main support frame 71 is indicated by a solid line arrow 122 through the opening 121 from the circulating air introduction port 78. In this way, a negative pressure region 124 that receives suction as indicated by a broken-line arrow 123 by a flow of circulating air discharged to the circulating air discharge port 72 through the main filter material 79 is provided. As shown in FIG. 6, through an intake port 124 a provided in the main support frame 71, the outside air introduction path 125 that introduces outside air from the outside air introduction port 125 a that is exposed to the outside communicates with the outside air introduction communication port 125 b that opens to the filter chamber 36. A part of the circulating air introduction area 126 having the opening 121 of the upper half 71b on the circulating air introduction side of the main support frame 71 is provided with an auxiliary outlet 129 provided on the rear wall of the main support frame 71. 127, an external exhaust path 128 communicating with the external exhaust port 128a shown in FIGS. 5 and 6 is communicated with an external exhaust communication port 128b opened in the filter chamber 36.

  Although the outside air introduction path 125 is normally closed with a built-in electromagnetic valve 132, the electromagnetic valve 132 is opened by control from the control board 67 or the like when the upper limit temperature of the circulating drum 2 or circulating air is detected. Thus, outside air is sucked into the circulating air by the negative pressure suction force generated in the negative pressure region 124 by the flow of the circulating air, and is mixed with the circulating air that circulates in the circulating air discharge path 72 toward the circulating air discharge port 72. The temperature of the rotary drum 2 and the circulating air can be lowered and kept in an appropriate temperature range, and therefore the electromagnetic valve 132 is often kept open thereafter. Further, when the amount of circulating air becomes excessive due to the introduction of this external air or the like, the pressure in the circulating air blowing path 5 rises. It enters the exhaust path 128 and exits from the external exhaust port 128a. As shown in FIGS. 2 and 6, the outside air introduction port 125a is opened right behind so that no foreign matter or the like falls, whereas the external exhaust port 128a is opened upward as shown in FIG. Moreover, as shown in FIG. 1, the washing and drying machine main body 44 protrudes from the back surface 44 g. As a result, the moist circulating air before dehumidification is exhausted from the external exhaust port 128a to prevent dripping of condensate water, and a small amount of dew condensation water is allowed to dry naturally.

  Here, the filter chamber 36 is formed such that a circulating air introduction port 78 is formed on the front wall of the upper half portion 36b on the side of the attachment / detachment port 51, and an external exhaust communication port 128b is formed on the rear wall so as to face each other. A circulating air discharge port 72 is formed at a position on the rear side wall of the lower half portion 36c that is the back side and is laterally removed below the external exhaust communication port 128b. Thus, excess circulating air is introduced from the circulating air introduction port 78 in the front wall of the upper half portion 36b of the fill chamber 36 into the circulating air introduction region 126 of the upper half portion 71b of the main support frame 71, and then the filter. The chamber 36 is pushed out without difficulty so as to go straight to the external communication port 128b in the rear wall of the upper half portion 36b of the chamber 36 and exhausted to the outside. The remaining circulating air with the normal air volume is smoothly discharged toward the circulating air discharge port 72 on the rear wall in the lower half 36c of the filter chamber 36.

  As shown in FIG. 5, the external exhaust communication port 128b is sufficiently smaller than the circulating air discharge port 72, and the circulation of the circulating air is adjusted by adjusting the ventilation resistance between the external exhaust communication port 128b and the circulating air discharge port 72. Priority is given to the discharge to the air discharge port 72 to prevent the circulating air from being accidentally escaped to the outside. Further, as shown in FIG. 7, the negative pressure region 124 is juxtaposed with the circulating air introduction region 126 in the upper half 71 b on the circulating air introduction side of the main support frame 71, and the backup filter 82 of the main support frame 71. A space unrelated to each other is used to satisfy the required size. Specifically, the negative pressure region 124 is formed by partitioning from a wider circulating air introduction region 126 by a plate-like partition part 131 integrally formed in the upper half 71b on the circulating air introduction side of the main support frame 71. In addition, the circulating air introduction area 126 is connected to the circulating air discharge side. As a result, the circulating air introduction area 126 and the negative pressure area 124 are arranged in parallel with a very simple structure, and the negative air pressure area 124 is sucked by the flow of circulating air from the circulating air introduction area 126 to the circulation air discharge port 72. Can act. In particular, the outside air introduction path 125 is opened through the intake port 124a in the peripheral wall portion facing the partition portion 131 in the negative pressure region 124 as shown in FIG. As a result, the outside air indicated by the broken arrow 123 drawn into the negative pressure region 124 through the outside air introduction port 125a, the outside air introduction path 125, the outside air introduction communication port 125b, and the intake port 124a collides with the partition 131 and is directly below the filter chamber. 36, the circulating air introduced from the circulating air introduction port 78 of the filter chamber 36 into the circulating air introduction region 126 formed by the upper half 71b of the main support frame 71 is directed toward the lower half 71c. Thus, the flow toward the circulating air discharge port 72 of the filter chamber 36 is smoothly merged and mixed, and the flow of the circulating air indicated by the solid arrow 122 is not disturbed, and the flow of the circulating air indicated by the solid arrow 122 is negative. It is easy to exert a suction force on the pressure region 124, and the outside air sucked there as indicated by a broken line arrow 123 is directed toward the circulating air discharge port 72 of the filter chamber 36. To satisfy the easy relationship.

On the other hand, when the main filter 35, the backup filter 82, and the auxiliary filter 129 are clogged in the drying process, there is no escape route for the circulating air introduced to the main filter 35 in the past, and the pressure in the circulating air passage 5 increases. Then, it leaks into a drain hose (not shown) connected to the aquarium 3, and the water trapped in the drain trap is blown by the wind pressure, so that the function of the trap is destroyed and the odor from the sewer pipe leaks. However, the excess amount of circulating air at the time of such clogging is reversed from the negative pressure region 124 as shown by a one-dot chain line arrow 134 in FIG. 7 contrary to the flow so far (broken line arrow 123 in FIG. 7). The air enters the outside air introduction path 125 where the electromagnetic valve 132 is opened through the outside air introduction communication port 125b through the outside air inlet 124a and exits from the outside air introduction port 125a. In, as possible out it is possible to eliminate the naturally boost.

  Further, the negative pressure region 124 of the upper half 71b on the circulating air introduction side of the main support frame 71 is opened to the front together with the circulating air introduction region 126 having the open opening 121 as shown in FIGS. Then, the upper half 36b on the filter attachment / detachment side of the filter chamber 36 is closed by a portion without the circulating air introduction port 78 on the front wall as shown in FIG. As a result, both the circulating air introduction area 126 and the negative pressure area 124 in the upper half 71b of the main support frame 71 are opened to form a simple shape that functions together with the filter chamber 36, thereby facilitating molding.

  The present invention is a technique for collecting lint and the like that is practically used in a circulating air blowing system for drying laundry in a drum-type washing and drying machine and is mixed in circulating air in a drying process. make it easier.

Sectional drawing which shows the principal part structure of the drum type washing-drying machine which concerns on embodiment of this invention. The internal rear view of a drum-type washing dryer same as the above. The upper perspective view of a drum type washing-drying machine same as the above. The perspective view which removed the filter and looked at the attachment-and-detachment mouth part of the filter of FIG. Sectional drawing which shows the relationship between the top | upper surface of the washing-dryer main body of FIG. 3, an attachment / detachment port, a filter chamber, a main filter, and a backup filter. FIG. 6 is a perspective view of the filter chamber of FIG. 5. The perspective view which isolate | separates and shows a main filter and a backup filter. The perspective view which changed the direction and looked at the main filter of FIG. Sectional drawing which shows the elastic engagement part of a main filter and a filter chamber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum type washing-drying machine 2 Rotating drum 3 Water tank 5 Circulation ventilation path 7 Motor 8 Through hole 15 Blower fan 16 Circulation air introduction pipe 31 Condenser 32 Evaporator 33 Blower duct 35 Main filter 36 Filter chamber 36b Upper half part 36c Lower half 36d Opening 36e Front wall 37 Compressor 51 Removable opening 52 Removable path 53 Top plate 56, 133 Cue recess 71 Main support frame 71a, 101a Flange 71b Upper half 71c Lower half 72 Circulating air outlet 73, 94 Seal packing 73a, 94a Mounting portion 73b, 94b, 94c Seal lip 74, 102, 103 Step 75 Elastic engagement portion 75a Engagement hole 75b Resin spring 76 Box body 77 Screw 78 Circulating air introduction port 79 Main filter material 82 Backup Filter 83 Sub filter material 91 Filter 92, 93 Partition boundary portions 95, 96 Independent exhaust Space 101 Sub-support frame 111, 112 Magnet 123 Filter detection device

Claims (10)

Rotating drum a large number of through holes are formed rotationally driven by housing the laundry is provided in the water tank, the water supply of the water tank, the washing under the control of waste water and the rotation of the rotary drum, rinsing, each step of dehydration In addition, the drying process of the laundry is performed by circulating the air in the water tank through the circulation air flow path provided with the dehumidification means and the heating means by the air blowing means, and mainly the waste thread or the like in the middle of the circulation air flow path. In the drum type washing and drying machine provided with a filter chamber to be mounted so that a filter for collecting foreign substances can be attached and detached,
The filter includes a main filter acting earlier to the circulating air discharged into the filter chamber of the circulating air inlet from entering the circulating air outlet, then without the double filter structure with the backup filter acting, the backup filter is removed later mounted ahead said main filter, said main filter has a relationship to be taken earlier mounted later than the backup filter,
The backup filter has a sub-support frame having a bowl shape that fits into a lower half portion of the filter chamber where the circulating air discharge port is provided, and supports the filter material inside the circulating air discharge port. And
The main filter has a bowl shape substantially along the inner surface of the filter chamber and the backup filter attached thereto, and introduces the circulating air from the circulating air inlet provided in the upper half of the filter chamber. A half part, and a lower half part for supporting the filter material inside the filter material supported by the mounted backup filter and for discharging the circulating air in a double filter structure with the backup filter. A drum-type washing / drying machine comprising a main support frame and satisfying a front-rear relationship acting on the exhausted circulating air and a front-rear relationship of attachment / detachment . The backup filter, both of the partition boundary to the backup filter and circulating air outlet side and an independent exhaust space of the filter chamber, the partition boundary to the independent exhaust space between the main filter and the backup filter, drum type washing and drying machine according to claim 1 provided with a first sealing gasket to seal. The first seal packing is fitted to the outer periphery of the auxiliary support member, a first stepped portion facing the circulating air inlet side formed on the inner surface between the half and the lower half portion on the filter chamber , between opposed portions of the second stepped portion facing the circulating air discharge side formed on the outer surface between the half and the lower half portion on the main support frame, said filter chamber of the main filter and backup filter by with scissors by attachment to a predetermined position, the drum type washing and drying machine according to claim 2 which is adapted to press and seal to both the first stage portion and the second step portion. The first seal gasket is attached to a flange portion provided to face the first stepped portion and the second stepped portion in the sub-supporting frame, said first stepped portion from the mounting base to the flange portion and The drum-type washing and drying machine according to claim 3 , wherein seal lips respectively extending toward the second step portion are in pressure contact with the first step portion and the second step portion, respectively . The main filter has a top plate for closing the access opening to the filter chamber which is open to the outer surface of the washing and drying machine main body, the main support frame extends from the top plate to the filter chamber side, and the upper half of the main support frame second seal packing is mounted on the outer periphery between the top plate and the second seal packing, of the mounting port of the inner filter chamber when worn to a predetermined position of the filter chamber of the main filter The drum-type washing and drying machine according to any one of claims 1 to 4, wherein the attachment / detachment port is sealed by being pressed against a third step provided on the periphery. The second seal packing is mounted on the flange portion of the main support frame, the sealing lip extending in the third step portion side from the mounting base to the flange portion, claim pressed against the third step portion 5 The drum-type washing and drying machine according to 1. Between the main filter and the filter chamber, the drum according to any one of claims 1 to 6, the elastic engagement portions mutually engaged elastically engaged are provided at the mounting to a predetermined position of said main filter Type washing dryer. Elastic engagement portion is a combination of the engaging recess or an engaging hole and the resin spring portion, the drum type washing and drying machine according to claim 7 wherein the resin spring portion that can be detached. Wear Datsukuchi is a drum type washing and drying machine according to claim 5 or 6 is formed on the top surface of the washing and drying machine main body. Main filter and backup filter is provided with a magnet, respectively, the filter chamber, the main filter and the backup filter the magnet and responsive to a pair of output electrical signals to the outside face individually when mounted in a predetermined position The drum type washing and drying machine according to any one of claims 1 to 9 , further comprising a filter detection switch.

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