JP6742284B2 - Filter unit and washing machine having filter unit - Google Patents

Description

The present invention relates to a filter unit and a washing machine including the filter unit.

Patent Document 1 describes a structure as a washing/drying machine in which a filter unit is configured to be detachable from an air passage and a cleaning mechanism is provided near the filter.

Japanese Utility Model Publication No. 60-179296

When the filter is detachable, the user may mistakenly attach the filter. If such a thing occurs, there is a possibility that the removal performance of the thread waste and the like by the filter may deteriorate.

The present invention made in view of the above circumstances is a filter unit attached to a casing of a washing machine, which collects dust, and a fixed filter attached to the casing, with respect to the fixed filter, A detachable internal filter, wherein the fixed filter is a lint filter, a frame surrounding the lint filter, and a side provided to mount the internal filter and facing each other among the sides forming the frame. A first pawl and a second pawl provided on the outer side of the first pawl having a flat plate-shaped portion, and a first pawl provided in a direction perpendicular to the flat plate-shaped portion of the first pawl to prevent deformation of the first pawl. A rib, a second rib provided on the side on which the first tab is provided for improving strength, and a third rib provided on the side on which the second tab is provided for improving strength, The fixed filter has a third claw hooking portion provided on a side different from the first claw and the second claw, and the claw of the internal filter is engaged with the fixed filter to attach the internal filter. The second rib and the third rib are provided so as to extend in a direction orthogonal to the projecting region where the third claw hooking portion is provided, and are provided to improve the strength of the projecting region. The internal filter has an interference rib that comes into contact with the second rib and the third rib of the fixed filter and obstructs the attachment with the fixed filter when the mounting direction with respect to the fixed filter is incorrect. Is characterized by.

Exploded perspective view of a drum-type washing machine as an application example of the washer/dryer according to the present embodiment External perspective view of a drum-type washing machine as an application example of the washer/dryer according to the present embodiment Configuration diagram of the drying filter unit and its mounting part Schematic configuration of mounting part (A) is a front view observed from the fixed filter flow side, (b) is an enlarged view near the first claw (A) is a front view of the internal filter observed from the upstream side, and (b) is a front view of the fixed filter and the internal filter attached to the fixed filter observed from the internal filter side (upstream side). Perspective view of fixed filter and internal filter attached to housing Exploded right side view of fixed filter and internal filter Exploded perspective view of fixed filter and internal filter

Hereinafter, embodiments of the present invention (hereinafter, referred to as “this embodiment”) will be described in detail with reference to the drawings. It should be noted that the drawings are merely schematic representations so that the present invention can be fully understood. Therefore, the present invention is not limited to the illustrated examples. Further, in each drawing, common or similar components are designated by the same reference numerals, and duplicated description thereof will be omitted.

<Overall structure of the washer/dryer>
FIG. 1 is an exploded perspective view of a drum type washing machine as an application example of the washer/dryer according to the present embodiment. In the present embodiment, inside the housing, a main board unit for controlling the washing machine, a circulation means (piping, pump) for circulating the washing water, a drying means for circulating a dry air for drying the object (cloth), Illustration of the configuration of the piping and the like is omitted.

As shown in FIG. 1, a drum type washing machine 1 is a washing machine in which a drum type washing and drying machine according to the present embodiment is integrally incorporated, and an outer tub 3 elastically supported in a housing 1, A rotating drum (inner tank) 4 rotatably supported in the outer tank 3 and a housing 10 that houses the outer tank 3 and the rotating drum 4 are configured.

The outer tub 3 is made of synthetic resin in a cylindrical shape, and contains the rotary drum 4 coaxially. The outer tub 3 includes a bottomed cylindrical outer tub main body 3a and an outer tub cover 3b attached to a front opening of the outer tub main body 3a.

The rotating drum 4 is a rotatably supported cylindrical washing/dehydrating tub, and has a large number of through holes 4a for water flow and ventilation in the outer peripheral wall thereof, and laundry is put in and taken out from the front end face. An opening 4b is formed for this purpose.

A door 25 is attached to the flat portion 12a of the front upper panel 12 via a hinge. A lid 13d for inserting and removing a filter member of a lint filter (not shown) is attached to the flat portion 13a of the lower front panel 13.

The upper connecting reinforcing portion 36 connects the upper reinforcing plate 35 and the rear panel 16 and is molded of synthetic resin, and connects the upper reinforcing plate 35 and the rear panel 16 via a screw (not shown). is there. Further, the upper connection reinforcing portion 36 is arranged so as to extend in the front-rear direction and be located at the center portion in the left-right direction. A water supply unit (not shown), a drying filter unit 37, and the like are attached to the left and right of the upper connection reinforcing portion 36. The water supply unit (not shown) includes a water supply pipe (not shown), a water supply hose connection port 18f (see FIG. 2) and a bath water hose connection port 18g (see FIG. 2), a detergent water supply solenoid valve, a pump for sucking bath water, and the like. Is.

FIG. 2 is an external perspective view of a drum type washing machine as an application example of the washing and drying machine. As shown in FIG. 2, the curved portion 12b of the front upper panel 12 and the curved portion 13b of the front lower panel 13 are formed to be curved from the right end position of the door 25 toward the side panel 14A. The upper panel 18 can close the upper opening formed when the front panel 11, the side panel 14A, the side panel 14B (see FIG. 1), and the rear panel 16 (see FIG. 1) are combined. It has a shape.

Inside the housing 10, an air passage (not shown) through which dry air for drying an object (cloth) is provided. A drying filter unit 37 for collecting dust is detachably arranged on the air passage.

<Dry filter unit mounting part configuration>
FIG. 3 is a configuration diagram of the drying filter unit 37 and the mounting portion 38, and shows a state in which the drying filter unit 37 is removed from the mounting portion 38. On the top panel of the drum type washing machine 1, a mounting portion 38 for mounting the drying filter unit 37 is provided. The attachment portion 38 has a hollow box shape with openings formed on the upper surface and the rear surface thereof, and has a space capable of accommodating the drying filter unit 37.

FIG. 4 shows a schematic configuration of the mounting portion 38. The mounting portion 38 has an inlet 38a for allowing the dry air to flow into the drying filter unit 37 from the upstream side, and an outlet 38b for allowing the dry air from the drying filter unit 37 to flow out to a heater (not shown) on the downstream side. Have A fan (not shown), a heater (not shown), etc. are provided on the downstream side of the outlet 38b. In this embodiment, the inflow port 38a is provided on the rear surface side of the mounting portion 38, while the outflow port 38b is provided on the right surface side of the mounting portion 38. Therefore, the outflow port 38b is arranged in a direction substantially perpendicular to the inflow port 38a.

A partition plate 39 is attached to the inflow port 38a. A fixed filter 91 and an internal filter 92 are attached to the outflow port 38b. Each of the fixed filter 91 and the internal filter 92 is a filter member to which a lint filter for collecting dust contained in the dry air is attached. The fixed filter 91 is fastened to the housing of the drum type washing machine 1 by a fixing portion 100 such as a screw. On the other hand, the internal filter 92 is located upstream of the fixed filter 91 and is removable from the fixed filter 91. With such a positional relationship, the internal filter 92 can be easily removed from the fixed filter 91.

5A is a front view of the fixed filter 91 observed from the upstream side, FIG. 5B is an enlarged view of the vicinity of the first claw 95a, and FIG. 6A is a front view of the internal filter 92 observed from the upstream side. FIG. 6B is a front view of the fixed filter 91 and the internal filter 92 attached to the fixed filter 91 as observed from the internal filter 92 side (upstream side).

(Fixed filter 91)
The fixed filter 91 has a central lint filter and a frame 102 surrounding the lint filter. A first claw 95a and a second claw 95b are formed on opposite sides (short sides in the present embodiment) of the sides forming the frame 102, and a gap is provided near the outside of the first claw 95a. And a first rib 97 is provided. Further, a third claw hooking portion 96c is provided on a side different from the claws 95a and 95b. The “side” here does not necessarily have to be a mathematical linear shape, and if it extends in a certain direction as a longitudinal direction, part or all of it may have a planar spread or unevenness. May be. The claws 95a, 95b, 95c can each be formed into a flat plate shape.

The fixed filter 91 is provided with a fixed portion 100a into which the fixing portion 100 such as a screw for fixing the fixed filter 91 is inserted into the casing 1 of the washing machine. In addition, a second rib 99 is provided on the same side as the first claw 95a and between the third claw hooking portion 96c and a third rib 101 on the same side as the second claw 95b and the fixed portion 100. There is.

The first rib 97 can have one or two pressing portions 97a extending in a direction substantially perpendicular to the first claw 95a. When the two pressing portions 97a are provided as in the present embodiment, a connecting portion 97b that connects the two holding portions 97a can be further provided.
The extending direction of the connecting portion 97b is substantially orthogonal to the extending direction of each holding portion 97a. By providing the connecting portion 97b, the strength of each holding portion 97a can be improved. Further, by providing the connecting portion 97b so as to face the first claw 95a through the gap when the internal filter 92 is attached, it is possible to suppress friction between the first claw 95a and the first claw 95a. 95a can be easily attached.
The end of the pressing portion 97a on the side farther from the first claw 95a is located farther from the first claw 95a than the connecting portion 97b.

The third claw hooking portion 96c is provided in a region whose sides project in a slightly planar shape (in particular, refer to FIG. 9). Such a projecting region may be deformed by application of force, but in the present embodiment, the second rib 99 connected to this region and extending in the direction orthogonal to this region is provided. Therefore, the strength is improved. Similarly, the strength of the fixed portion 100a is improved by the third rib 101 connected to the fixed portion 100a protruding from the side and extending in the direction orthogonal to the fixed portion 100a.

(Internal filter 92)
The internal filter 92 has a central lint filter and a frame 103 surrounding the lint filter. On a side that forms the frame 103, a first claw hooking portion 96a that has a shape protruding from the side and that engages the first claw 95a, a second claw hooking portion 96b that engages the second claw 95b, and a third claw. It has the 3rd nail|claw 95c which engages with the hanging part 96c. Further, the internal filter 92 has a convex portion 96z on the side where the drying filter unit 37 is removed. The user can easily remove the fixed filter 91 by applying force with the convex portion 96z as a fulcrum.

(Detachment)
FIG. 7 is a perspective view showing a state in which the fixed filter 91 and the internal filter 92 are attached to the housing 1, and is a perspective view including the attachment portion 38. The arrow in the figure indicates the direction of the air flow.
Since the tabs 95a, 95b, 95c are thin and have a flat plate shape, they may be bent and deformed when a force in a direction perpendicular to the tabs is applied. Here, since the wall surface of the housing 1 is located immediately outside the second claw 95b of the fixed filter 91, it comes into contact with the wall surface of the housing 1 substantially. It is possible to suppress the force from being applied. That is, by disposing the second claw 95b near the wall surface of the housing 1, it is possible to reduce the possibility that the second claw 95b and the second claw hooking portion 96b are deformed. On the other hand, the first claw 95a is located farther from the wall surface of the housing 1 than at least the second claw 95b, and the risk of deformation is relatively large.

Further, since the third claw 95c is surrounded by the third claw hooking portion 96c and the housing 1, the possibility of deformation is similarly reduced.

On the other hand, it may be difficult to arrange the wall surface of the housing 1 in the vicinity of the first claw 95a for the purpose of effectively constructing the flow path. Therefore, in the present embodiment, the rib 97 is provided immediately outside the first claw 95a to reduce the risk of the first claw 95a being deformed. That is, the inside of the first claw 95a can be supported by the frame, and the outside thereof can be supported by the first rib 97.

It is expected that the user will remove the internal filter 92 by applying force to the convex portion 96z and its vicinity with fingers. Since the claws 95a and 95b are located closer to the convex portion 96z than the claws 95c, there is a relatively large possibility that the user may touch and apply force. On the other hand, the position of the claw 95c is provided in a region facing the convex portion 96z and is close to the fulcrum of the force applied from the convex portion 96z, so that there is relatively little risk of being touched and deformed by the user.

(Control of assembly error)
8 is an exploded right side view of the fixed filter 91 and the internal filter 92, and FIG. 9 is an exploded perspective view of the fixed filter 91 and the internal filter 92. The internal filter 92 does not interfere with the members of the fixed filter 91 when it is attached to the fixed filter 91 in a normal direction when attached, but when it is attached in the wrong direction, the claws 95a, 95b or ribs are attached. It has an interference rib 98 which interferes with 99 and 101 to hinder the attachment.

That is, when it is attempted to be attached to the fixed filter 91 in a direction inverted at least with respect to the normal attachment direction with respect to the long side direction, the interference rib 98 comes into contact with the second rib 99 or the third rib 101, Cannot be installed.

1 Drum type washing machine (washer/dryer)
3 outer tank 3a bottomed cylindrical outer tank body 3b outer tank cover 3s opening 4 rotating drum (inner tank)
4a through hole 4b opening 4c lifter 5 damper 10 housing 11 front panel (front plate)
12 front upper panel 12a flat portion 12b, 12c curved portion 13 front lower panel 13a flat portion 13b, 13c curved portion 13d lid 14A, 14B side panel (side plate)
14a Curved part 14b Handhold part 14c Reinforcing recess (rib)
16 Rear panel (back plate)
16A rear upper panel 16B rear lower panel 16a, 16b curved portion 17 base 18 upper panel (upper plate)
18f Water supply hose connection port 18g Bath water hose connection port 20 Detergent input part 22 Operation panel 25 Door 31 Front upper reinforcing plate 31a Plate part 31b, 31c Bending part 31d Cutout part 32 Front lower reinforcing plate 32a Plate part 32b, 32c Bending part 32d Notch 33, 34 Lower reinforcing support plate 33a Upper connecting part 33b Lower connecting part 34a Upper connecting part 34b Lower connecting part 35 Upper reinforcing plate 35a Plate part 35b, 35c Bending part 36 Upper connecting reinforcing part 37 Drying filter unit 38 Mounting part 38a Inlet port 38b Outlet port 39 Partition plate 40 Filter part 41 (41a, 41b) Lint filter 42, 52 Frame 42d Groove part 43 Rear surface opening part (inlet port)
44 Upper surface opening 45 Escape part 50 Lid part 51 (51a, 51b) Blade (cleaning means)
52t Projection part 53 Support part 54 Cover plate 60 Sealing mechanism 61 Packing (elastic member)
62 front-back direction arrangement part 63 horizontal direction arrangement part (intermediate part)
66 rib (pressing part)
67 Vertical protrusions 68 Horizontal protrusions 70 Pressing mechanism 71 Guide part 71a Innermost part 71b Middle part 71c Entrance part 72 Insertion part 72a Insertion tip part 72b Middle part 72c Rear end part 81 Handle 91 Fixed filter 92 Internal filter ( (Detachable filter)
93 packing 94 ribs 95 claws 96 claw hooks 97 first ribs 98 interference ribs 99 second ribs 100 fixing parts 101 third ribs 102 frame (fixed filter)
103 frames (internal filter)

Claims (2)

A filter unit attached to the casing of a washing machine,
A fixed filter that collects dust and is attached to the housing,
With respect to the fixed filter, having a removable internal filter,
The fixed filter is provided for attaching the lint filter, the frame surrounding the lint filter, and the internal filter, is provided on the outside of opposite sides of the sides forming the frame, and has a flat plate-shaped portion. The first claw and the second claw that are provided, a first rib that is provided in a direction perpendicular to the flat plate-shaped portion of the first claw and that suppresses deformation of the first claw, and the first claw are provided. A second rib provided for improving strength on the side, and a third rib provided for improving strength on the side provided with the second claw.
In the fixed filter, the internal filter is attached by engaging the tab of the internal filter with a third tab engaging portion provided on a side different from the first tab and the second tab.
The second ribs and the third ribs are provided so as to extend in a direction orthogonal to the projecting region in which the third hook portion is provided, and are provided to improve the strength of the projecting region,
The internal filter has an interference rib that comes into contact with the second rib and the third rib of the fixed filter and obstructs the attachment with the fixed filter when the mounting direction with respect to the fixed filter is incorrect. A filter unit characterized by. A washing machine comprising the filter unit according to claim 1.

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