CN103348052B - Washing machine - Google Patents

Abstract

nullThe present invention relates to a kind of washing machine，This washing machine includes a cylinder (2)，One weep circuit (16)，It is upper to discharge fluid from this cylinder that this weep circuit (16) is fluidly connected to this cylinder (2)，One recirculation circuit (10)，This recirculation loop fluid it is connected on a bottom of this cylinder (2) so that fluid is recycled to this cylinder from the bottom of this cylinder (2)，And a filter cell (28，28'，28'')，This filter cell (28，28'，28'') it is positioned at entrance (14) place of this recirculation circuit (10) to prevent foreign body from entering this recirculation circuit，Wherein this filter cell (28，28'，28'') include at least one filter openings to allow fluid pass through，And wherein this at least one filter openings extends to this filter cell (28，28'，Horizontal boundary 28'')，So that this at least one filter openings includes an opening at its girth，And/or this at least one filter openings (34a e) defines at least two filter finger (the 35a d being spaced apart，35a'‑d'，35a''f'').

Description

Washing machine

The present invention relates to a kind of washing machine (this statement also includes a kind of washing machine with functions/drying), including for it One filter cell of one recirculation circuit.

DE 100 46 349 A1 discloses a kind of washing machine, and this washing machine has a weep circuit and a recirculation Loop, this recirculation circuit is for being recycled to one top by washings from a bottom of a cylinder.One fine screen mesh mistake Filter is across the entrance of this recirculation circuit, in order to prevent fine hair from entering this recirculation circuit.By water through this recirculation circuit Backflow cleaning of this filter cell, the fine hair wherein removed during a blowdown period is by flowing through this granular membrane Water washes away.

EP 0 240 911 B1 discloses a kind of removable filter for washing machine.This washing machine includes one again Closed circuit and a weep circuit, this weep circuit is fluidly connected on a cylinder through a conduit.This filter is put Put the exit at this conduit, so that the washings discharged from this cylinder or be circulated back to this cylinder are through this filter.? During one blowdown period of one cycles of washing, a surface of a fine filter part of this filter catches These villus fibers removed by the water on this surface flowing through this fine filter part.

It is an object of the present invention to provide a kind of washing including the modified model filter cell for recirculation circuit Machine.

Hereinafter, when quoting " water ", term " water " can similarly indicate water, as washings, wash liquid, washing Solution etc..

Hereinafter, when quoting " washing machine ", term " washing machine " may refer to muzzle-loading type or the washing of roof-mounted type Machine, both washing machine all have or also do not have functions/drying.

According to an aspect of the present invention, a kind of washing machine includes a cylinder and a weep circuit, this weep circuit fluid Be connected on this cylinder for water being discharged from this cylinder during at least one blowdown period of a cycles of washing.Such as this row Liquid loop is connected or is attached on this cylinder, or this cylinder can include a storage tank, and this weep circuit is attached or connected to On this storage tank.Provide a recirculation circuit, be connected to this recirculation loop fluid on this cylinder for following a washing Fluid is recycled to one of this cylinder or middle part by least one recirculation stage of ring from this cylinder bottom.Pass through Water is repeatedly recycled to medicated clothing, it is not necessary to use within the tube and be high enough to be completely covered on the water of this cylinder undergarment Position.Therefore, there is the amount of water to be heated to reduce, reduce the energy consumption of washing machine whereby.One filter cell of this washing machine It is positioned at the upstream of an entrance of this recirculation circuit, is used for preventing foreign body (such as fine hair, button, coin etc.) from entering this and follows again Loop back path.Therefore, this filter cell prevents this recirculation circuit and/or the obstruction of one recirculation pump or blocking.Make At least one filter openings of this filter cell of water process extend to this filter cell a transverse edge or Girth (if this filter has round-shaped, this can be circumference).Therefore, this at least one filter openings includes one The girth of individual interruption or an opening in its girth, such as a space.Thus, this at least one filter openings is at least A spacing is defined between multiple shanks or multiple rake pin of two filter fingers or formation filter.When recirculation water During through this recirculation circuit, fine hair and other foreign bodies are trapped at least one perforate or this filter of this filter cell In at least two finger of element.When using as about a sieve described in DE 100 46 349 or EP 0 240 911 B1 During web filter element, fine hair and foreign body may be wrapped in this screen cloth, so that flow through or flow through this granular membrane Water no longer can remove the fine hair of this winding.The only possible property cleaning this granular membrane in the case is to replace this screen cloth Filter, or mechanically or cleaned this granular membrane by hands.In contrast to this, in the girth of at least one filter openings These filter fingers of opening or this filter cell prevent fine hair/foreign body to be wrapped in this filter cell.Cause This, opening in the girth of at least one filter openings or these filter fingers are such as in a discharge opeing of this washing machine Assist during stage and wash away fine hair/foreign body from this filter cell.

According to a preferred embodiment, this filter cell extends at least in part or highlights or extend with one principal piece Or it is projected into the weep circuit of this washing machine, cylinder or a storage tank.Therefore this filter cell is preferably attached with hang On this washing machine.I.e., an only part for this filter cell is advantageously fixed or attached on this washing machine, so that This filter cell is a self-supporting or independent element.Therefore this filter cell does not preferably extend across this washing The weep circuit of machine or the whole cross section of storage tank.The suspension attachment of the free end producing this filter cell facilitates from this Fine hair is poured in this weep circuit, cylinder or storage tank by filter cell.

Preferably, below a lower surface and this filter cell of this filter cell the upper surface in a region it Between at least some of top in a region provide a space.When this weep circuit is that work and water are from this washing machine During discharge, this space facilitates washes away precipitate and fine hair from this filter cell and this recirculation circuit.

In a preferred embodiment of this filter cell, this filter cell at least some of, or one is main Section is adapted to make the water of flowing from this cylinder deflect, particularly during a blowdown period.Therefore, this filter Element is adapted to be redirected by discharge current.Such as, the water flowed from this cylinder in a blowdown period is with one Acute angle hits this filter cell or one part, and is redirected on the direction of this weep circuit by this filter cell. Owing to water shock on this filter cell or water flow on this filter cell or flow through this filter cell, fine hair and Foreign body is washed away from this filter cell effectively.Instead, if this filter cell is arranged within the tube, especially Be routed in this cylinder and this cylinder between the cylinder supported rotatably, then in this cylinder current (these current can be by this Cylinder rotation in this cylinder causes), water flows through this filter cell and thus assists and wash away fine hair from this filter cell.

Preferably, this filter cell be attached to or be positioned at this entrance, be particularly attached to this weep circuit, this cylinder And/or storage tank includes a closing surface at least partially.Therefore, an attachment part near this filter cell does not has It is provided with opening or perforate.Water can effectively be deflected and such as arrive this weep circuit by the closedown part of this filter cell.Extend A free end of filter cell to this weep circuit, cylinder and/or storage tank preferably includes this at least one filter and opens Hole.Therefore, this filter cell advantageously comprises a forked or shape for rake, thus promotes fine hair from this filter elements Part washes away.

Preferably, this filter finger or rake pin flow to this row when this positive displacement pump is operationally parallel to water from this cylinder The flow direction of liquid pump, or it is partly extended to this flow direction.Therefore, at a blowdown period, at this, at least one filters On the direction of the opening in device perforate, or on the direction of the free end of this at least two filter finger, wash fine hair and different Thing.Therefore washing away of fine hair is further promoted.

Preferably, but not necessarily, the opening in the girth of at least one filter openings accounts for this at least one filter At least the 1/16 of the girth of perforate, 1/10,1/5 or 1/4.Thus, this space is the biggest to allow such as from this filtration Device element easily washes away fine hair.

According to a preferred embodiment, this at least one perforate includes a shape, and this shape is from this, at least one is opened Opening in hole is tapered to a bottom of this at least one perforate relative with this opening.Therefore, this at least one open The bottom in hole is narrower than the opening in the girth of at least one perforate.Or the most favourable in this at least two finger Ground is tapered to its free end from a bottom.The cross section of this at least one perforate is in the bottom to this at least one perforate Narrowing on direction facilitates and catches or trap fine hair and foreign body in this at least one perforate.And then, the cross section of this perforate from Widening to facilitate and remove or wash away the fine hair or foreign body captured in this perforate to this space bottom this.Such as, this is at least One filter openings include selected from from rectangle, essentially rectangular, triangle, be generally triangular, semicircle or essentially half A circular shape.

Preferably, this filter cell includes at least four filter finger, preferably at least six filter finger-types Part.However, it is possible to provide any number of filter finger (odd number or even number, but clearly equal to or more than two Individual).These these perforates are preferably parallel to one another or arrange substantially parallel, so that these perforates define a rake mistake Filter element.

According to a preferred embodiment, this washing machine includes a valve, and this valve has and is arranged at this cylinder and this row A valve body between liquid loop.When this valve was closed during a heating period of a washing operation, at this Water in weep circuit is not heated.Therefore, the energy consumption of this washing machine is reduced.

In one embodiment, this valve body is formed by this storage tank container or one part, or is connected to by by this cylinder The part formation of a discharge opeing suction channel on one positive displacement pump.Therefore, with there is a valve separating body Relatively, for providing the number of the element of this valve to decrease.Entrance at this recirculation circuit is arranged at this valve body A bottom or lower area in the case of, this recirculation circuit have suck insoluble detergent a kind of improved capacity, This insoluble detergent is owing to gravity is collected in the lower area (such as, storage tank or discharge opeing suction channel) of this valve body Place.

Preferably, the entrance of this filter cell or this recirculation circuit is placed on the downstream of this valve.In other words, should The entrance of recirculation circuit is positioned in about the flowing of water after this valve, and this water leaves this cylinder and through this valve and goes Toward this weep circuit (that is, leaving the water of this cylinder at the entrance running into this recirculation circuit after this valve).Due to this valve The imperfect water-stop of door, therefore can occur insoluble detergent to have already passed through this valve and (such as, work as detergent during water-filling When being punched in this cylinder).This detergent has been collected in the discharge opeing of the valve seat substantially lower section in this cylinder around valve openings In loop.The detergent collected in this way below this valve seat will be inhaled into and wear when this recirculation circuit works next time Cross the entrance of the recirculation circuit in (or the downstream as seen in from this cylinder) below this valve, and be cycled back in this cylinder. Thus, owing to detergent by more efficient use rather than is discharged from this washing machine, thus clean result strengthens.In other words, relatively Few detergent loses in this weep circuit of this washing machine, and the most less detergent must be used for realizing identical washing knot Really.Therefore, this washing machine provides a kind of economical washing operation consumed about energy and detergent.

Preferably, this valve body has this valve seat and a removable closing element, this removable closing element quilt It is adapted to this valve seat releasable engagement to close this valve openings running through this valve seat.This valve advantageously according to Water level in this weep circuit and/or this cylinder and automatically turn off or open.In other words, this valve is preferably adapted to basis Water level and self-starting, such as by being adapted in (washing) water or a most floating closure member and self-starting.Example As this closure member is gradually filling the floating on water surface of this weep circuit or storage tank, and by the water level risen, i.e. by buoyancy, Extrude this valve seat finally down, and thus this valve openings in this valve seat is sealed.Thus this cylinder is by from this discharge opeing Closing in loop, which provide a simple and valve for robust, this valve is non-maintaining or the most non-maintaining.

According to a preferred embodiment, a surface towards the filter cell of this valve is shaped to so that at this table Receive or support the removable closing element of this valve on face or in this surface.In a preferred embodiment, when water level very Time low and when this closure member is the most floating or is pressed down on by circulating water, this filter cell is in its surface Partially or even wholly receive this closure member.Owing to water flows through this closure member, therefore (mainly the rotating of this closure member ) mobile occur in this filter cell on or above, wherein produce help to remove from this filter cell fine hair or its One eddy current of his foreign body.

Preferably, this removable closing element has a spherical or substantially spherically-shaped shape, so that it is fitted It is made into and engages with this valve seat in arbitrarily (rotation) position.When this closure member is the most floating in this storage tank or weep circuit This is favourable.As an alternative, this closure member is such as become by a radial type lobed, such as, stop with at a rocking plate type Returning being similar in valve, this valve is closed by buoyancy and hydraulic pressure.

But, other kinds of valve (such as electrical control) may be used for allowing/stop water to flow to this from this cylinder Weep circuit.

According to a preferred embodiment, this filter cell includes one fully or portion at least one sectional plane Point ground arch or bending or hemispheric cross section, and/or this cross section is on the direction discharging fluid or as from the side of this cylinder Seen in face is the most recessed.Such as, this filter cell includes a bowl-shape form, and this is bowl-shape Form auxiliary catch foreign body and/or support this removable closing element.

An alternate embodiment according to a kind of washing machine according to the present invention, the entrance of this recirculation circuit such as one Bar pipe is attached on a bottom of this cylinder, i.e. the upstream of this valve.Therefore, the filter elements of this inlet upstream it is positioned at Part advantageously extends in this cylinder in the case, particularly extends at this cylinder and this washing machine installed therein In space between cylinder.The most in this embodiment, this filter cell is by this at least one row a cycles of washing The water flowing through this filter cell during the liquid stage is cleaned.It addition, the most in rotary moving of this cylinder causes washing current Dynamic or that current are in this cylinder filter cell, and thus assist washing fine hair or multiple foreign body from this filter cell.

For these embodiments of this washing machine, each island features of claims or description can be added, or Isolated or single multiple feature combination in any can add claim to.

Referring in detail to multiple preferred embodiments of the present invention, the example of these preferred embodiments is shown in the accompanying drawings, these Accompanying drawing illustrates:

(Fig. 1) according to the schematic cross-sectional elevational of a kind of washing machine of the present invention,

The washing machine of Fig. 2 Fig. 1 schematic cross-sectional elevational during Jiang Shui inserts one cylinder,

The schematic cross-section of the washing machine of Fig. 3 Fig. 1, wherein this cylinder water section is filled,

The washing machine of Fig. 4 Fig. 1 schematic cross-sectional elevational during a recirculation stage,

The washing machine of Fig. 5 Fig. 1 schematic cross-sectional elevational during a blowdown period,

Fig. 6 is according to the perspective partial cross-sectional side of a part for an exemplary internal structure of a kind of washing machine of the present invention View,

The perspective partial cross-sectional side view of the internal structure of the washing machine that Fig. 7 figure 6 illustrates,

The partial cross section of the details of the structure of the washing machine that Fig. 8 figure 6 illustrates,

Multiple perspective views of the valve that Fig. 9 a-d goes out as shown in FIG. 6 and multiple sectional view,

The valve of Figure 10 Fig. 9 a-d in off position under side cross-sectional view,

The valve of Figure 11 Fig. 9 a-d side cross-sectional view in the on-state,

Figure 12 a-d such as perspective view of a filter cell shown in Fig. 9 a-d,

The schematic cross-sectional elevational of Figure 13 a kind of washing machine according to an alternative embodiment of the invention,

The perspective view of one alternate embodiment of mono-filter cell of Figure 14 a-b and with the one of this filter cell The side cross-sectional view of individual valve, and

The perspective view of another embodiment of mono-filter cell of Figure 15 a-b and a valve with this filter cell The side cross-sectional view of door.

Fig. 1 depicts the schematic cross-sectional elevational of the washing machine 1 including a cylinder 2, and this cylinder 2 includes with wherein The cylinder 4 rotatably arranged.Providing a weep circuit 16, this weep circuit preferably includes a positive displacement pump 18,17, discharge opeing riser 19 of a discharge opeing suction tube and a discharge opeing filter 20.When positive displacement pump 18 works, discharge opeing Suction tube 17 is fluidly connected on cylinder 2 to discharge water, washings or fluid from this cylinder 2 during a blowdown period. Advantageously providing a valve 26, this valve advantageously comprises a valve body 27；Valve 26 preferably includes a valve Gate seat 22, this valve seat is in one piece of dividing plate form with an opening and is arranged between cylinder 2 and weep circuit 16.Favorably Ground, in valve body 27 freely removable maybe can be floating such as one ball of a removable closing element 24 be adapted Become to engage with valve seat 22, in order to cut off from weep circuit 16 by cylinder 2.Removable closing element 24 is by floatability material such as Plastic production, and the most floating according to the water level in discharge opeing suction tube 17 or valve body 27.When water level rises, can Mobile closing element 24 raises towards valve seat 22 until the surface of this removable closing element closes opening at valve seat 22 Mouthful.This valve seat can be formed in one piece of dividing plate or plate, goes out as shown in FIG. 1.In described embodiment, discharge opeing is taken out Suction pipe 17 is tubular and defines storage tank (at least partially), and even valve body 27 is received in the minimum point of cylinder 2.So And, in other embodiments, discharge opeing suction tube 17 at least can have difformity in the direct area below of opening of cylinder.

In a heating period of a cycles of washing, favourable by the heating element heater (not shown) being arranged in cylinder Ground heating water in cylinder 2.When valve 26 is closed, only heat the water in cylinder 2 but do not heat the water in weep circuit 16, Thus reduce the energy consumption of washing machine.

There is provided a recirculation circuit 10 so that water or washings are recycled to of this cylinder 2 from a bottom of cylinder 2 Top (goes out) as shown in Example, or is recycled to a middle part of this cylinder.Recirculation circuit 10 preferably includes one and takes out 13, recirculation pump 12 of suction pipe and a recirculation pipe 11, this suction tube 13 is preferably fluidly connected to this discharge opeing suction tube 17 (formation storage tanks).When recirculation pump 12 works, necessarily providing fully in cylinder 2 (or partly) clothes covering In the case of the water yield of thing 44, effectively soak the medicated clothing 44 in cylinder 2.I.e., on the one hand, the water during a cycles of washing disappears Depletion is little, and on the other hand, due to the water consumption reduced, the most less water must be heated, thus reduce energy consumption.

Recirculation pump 12 and positive displacement pump 18 can not be watertight.Therefore do not work when pump 12 and 18 and valve 26 is opened Time, the water level in recirculation pipe 11 and discharge opeing riser 19 is corresponding to the water level in cylinder 2 or discharge opeing suction tube 17.

Before one entrance 14 of the suction tube 13 that one filter cell 28 is advantageously arranged at recirculation circuit 10 Valve seat 22 downstream.When recirculation pump 12 works, water enters before recirculation circuit 10 through filter cell 28 at it. Filter cell 28 prevents passing through the fine hair of the valve 26 being open or partially open and multiple foreign body enters recirculation circuit 10, wherein they can block a mouth of pipe in the exit of recirculation pipe 11 or recirculation pump 12.When weep circuit 16 does not has When having water, and/or when recirculation pump 12 works and/or when water level is the lowest, removable closing element 24 rests on valve originally On the bottom of body 27 and/or rest on filter cell 28.

Fig. 2 depicts the washing machine of Fig. 1 schematic cross-section front view when the beginning of a cycles of washing.As by multiple arrows Head is shown, and tap water flows in cylinder 2 through a water inlet 6.Tap water flows through a detergent extractor 8, and tap water is from this Detergent extractor 8 carrying washing agent enters in cylinder 2 and cylinder 4, as indicated in these arrows.In this case, water level 42a In following scope, wherein may move closing element 24 and do not adjoin valve seat 22 so that valve 26 is opened.Therefore water fills up Weep circuit 16 and partly fill up recirculation circuit 10.

Fig. 3 depicts the washing machine of Fig. 1 during a stage of cycles of washing when being filled with cylinder 2 with water until selecting Schematic cross-sectional view during the maximum stage 42b of washing procedure.Positive displacement pump 16 and recirculation pump 12 are not activated by this stage. Washings have reached the maximum stage 42b of part clothes covering thing 44 in cylinder 2.When water level is increased to 42b from water level 42a and Due to still water buoyancy, removable closing element 24 is promoted or is pressed against valve seat 22, and thereby turns off valve 26.Valve 26 provide a kind of simple and side of robust for being automatically cut off from weep circuit 16 by cylinder 2 during these stages of cycles of washing Formula, wherein these pumps 12,18 do not work and wherein this water level has removable closing element 24 is pressed against valve seat 22 Minimum constructive height.Especially, when filling water to close valve and when there is no pump work during a heating period, valve Door 26 is preferably closed.

Fig. 4 depicts the washing machine 1 of Fig. 1 schematic cross-section forward sight during a recirculation stage of a cycles of washing Figure.Recirculation pump 12 is activated and is connected the inside that washings are pumped into cylinder 2 from storage tank or discharge opeing suction tube 17 again The outlet of circulation pipe 11 (it can have a mouth of pipe).When operating recirculation circuit 10, recirculation pipe 11 water is filled also And water level is down to intermediate washings water level 42c from maximum stage 42b.As shown by the fig. 4 embodiment, recirculation circuit is by water Deliver in cylinder 2 and deliver on cylinder 4.Cylinder 4 includes multiple hole or multiple perforation, washings by these holes or bore a hole into Enter cylinder 4 wetting clothing 44.Alternatively, recirculation circuit 10 is by an outlet at a rotation axis of cylinder 4 Water is directly sent in this cylinder 4 (Fig. 6).In another embodiment, outlet or the mouth of pipe of pipe 11 is arranged at muzzle-loading washing At one of machine loading door, so that recirculation water can be injected or spray and be directly entered rolling by the loading opening of cylinder Cylinder and medicated clothing 44 (not shown) therein.

It may happen that detergent particularly powder detergent being started without by the most molten a cycles of washing Solve.Such as by making tap water flow through when detergent extractor 8 starts to rinse this detergent and being sufficiently high to just close at water level (seeing such as water level 42a) before valve closing door 26, some detergents can keep insoluble and can be flushed through along the inside wall of cylinder Opening in valve seat 22 enters in storage tank or discharge opeing suction tube 17.Due to gravity, therefore detergent can be collected there.Separately Outward, even if water level is sufficiently high to just close valve 26, if the opening in the not fully closed valve seat of valve 26 22, then at cylinder 2 Minimum point at collect undissolved detergent possibly into weep circuit.Such as, in the cylinder rotation process phase of washing machine Between.

As indicated in Figure 4, the recirculation pump 12 having been turned on creates suction force in its suction side, due to from above With the buoyancy of the following pressure reduction acted on removable closing element He this removable closing element, therefore this suction force open or Partly open valve 26.Removable closing element 24 leaves from its valve seat 22.Thus water can pump from cylinder 2, to the greatest extent The entrance 14 of pipe recirculation circuit 10 is placed on valve seat 22 downstream.That is, the suction force of recirculation pump 12 follow a washing During one recirculation stage of ring, valve 26 is automatically opened.It is collected in storage tank or discharge opeing is taken out with reference to previously described Detergent in suction pipe 17, owing to the entrance 14 of recirculation circuit 10 is placed on below valve seat 22 or downstream, therefore at storage tank Or pipe 17 precipitates or any detergent of collecting is recycled back into cylinder 2, whereby this detergent when operating this recirculation circuit By effectively and efficiently for this cycles of washing.

Fig. 5 depicts the washing machine 1 of Fig. 1 schematic cross-section forward sight during a blowdown period of a cycles of washing Figure.The flow process of washing machine is depicted with multiple arrows.The positive displacement pump 18 suction force in its suction side opens valve 26, and Water from cylinder 2 and is also pumped from recirculation circuit 10 by discharge opeing riser 19 and pumps out washing machine 1 by positive displacement pump 18.From Open cylinder 2 and flow through the washings of filter cell 28 and cleaning of filter cell 28, i.e. wash or rinsed filter cell 28.Preferably, filter cell 28 is arranged in blowdown stream, weep circuit 16 or valve body, so that a row In the liquid stage, the water from cylinder 2 flowing hits this filter cell with an acute angle about the upper surface 30 of filter cell 28 28.Especially, current hit the part of filter cell 28 of the entrance 14 near recirculation circuit at a sharp angle.As under Described by face, this part of filter cell 28 includes a confining surface and is consequently formed one of this filter cell 28 Deflector or parts.The actual mistake of the filter cell 28 formed by multiple filter finger 35a-d (such as Figure 12 a-d) Filter part has been arranged at the free end of the filter cell 28 extending to discharge opeing suction tube 17.Therefore from cylinder 2 current edge The surface 30 of filter cell deflects or redirects, i.e. be basically parallel to the surface 30 of filter cell 28, and by this filtration Fine hair that device element 28 (i.e. filter finger 35a-d) catches and multiple foreign body during draining from filter cell 28 quilt Wash away.In other words, filter cell 28 defines a deflector elements, and this deflector elements is by the discharge opeing stream gravity from cylinder 2 It is directed in weep circuit 16, is particularly redirected in discharge opeing suction tube 17.Further, the washings of cylinder 2 are being left In flowing or shoving, removable closing element 24 mainly moves in (arrow) in rotary moving.This of removable closing element 24 Individual movement creates auxiliary and removes an eddy current of fine hair and other multiple foreign bodies from this filter cell 28.In other words, carry Supply " automatically cleaning " filter cell 28.It addition, from recirculation circuit 10 and the backflow of the water leaving recirculation pipe 11 The foreign body that (as by declining indicated by water level 42d) auxiliary washing has arbitrarily captured leaves filter cell 28.From filter Element 28 or the multiple foreign bodies washed out from cylinder 2 are captured subsequently discharge opeing filter 20, and user can this row accessible from outside Liquid filter is to clean.If user can not be close to filter 28 self outside washing machine, then this is advantageous particularly 's.

Fig. 6 depicts a part for an exemplary internal structure such as a kind of washing machine 1 schematically depicted in FIG Perspective partial cross-sectional side view, this washing machine is a kind of top-loading washer in this embodiment.These same reference numeral These same characteristic features for washing machine 1 as described above.About technology details and feature operation, entirely by reference to showing Above example shown in Yi.Cylinder 4 is supported in cylinder 2 rotatably.Cylinder 2 valve 26 below shows in fragmentary sectional view Go out.Removable closing element 24 (being spherical in this example) engages in valve seat 22, and as depicted in figure 6 Cylinder 2 is closed by state from weep circuit 16.The entrance 14 of recirculation circuit 10 is positioned at below valve 26, is specifically positioned at valve Below gate seat 22.The suction side of recirculation pump 12 is connected on this storage tank or discharge opeing suction tube 17 through suction tube 13.Pump 12 The recycled pipe of outlet side 11 be advantageously connected to a passage and at a rotation axis of cylinder 4, there is one and go out Mouthful.Weep circuit 16 is fluidly connected to cylinder by the opening in valve seat 22 (having one piece of dividing plate or the form of plate) On 2, so that washings can be operated by positive displacement pump 18 and discharge from cylinder 2 by pipeline 17, discharge opeing filter 20, pump 18 and discharge opeing riser 19 arrive the outside of machine.

Fig. 7 shows the perspective partial cross-sectional side view of the structure of Fig. 6.In this fragmentary sectional view, it is seen that be arranged Filter cell 28 at the entrance 14 of recirculation circuit 10.Fig. 8 shows that the partial cross section of the details of the structure of Fig. 6 regards Figure.The dividing plate of valve seat 22 or plate are attached at the lower edge of the extension of cylinder 2, extend at the bottom of this cylinder.Reception can The valve body 27 of mobile closing element 24 is preferably attached on the cylinder extension at this dividing plate, and defines discharge opeing and take out A part for suction pipe.Advantageously, suction tube 13 and discharge opeing suction tube 17 all have the segmentation being formed as a corrugated tube.These ripples Stricture of vagina pipe is for suppressing cylinder transferring to the vibration on these pumps 12,18.

Fig. 9 a-d depicts the perspective cross-sectional view of the valve 26 gone out as shown in FIG. 6.Fig. 9 a shows valve 26 Top view, the dividing plate which has been formed valve seat 22 illustrates from cylinder side.One lug 29 is advantageously attached on valve body 27 And prominent from this valve body, this valve body is used for being attached one end of suction tube 13.Filter cell 28 is advantageously attached On lug 29；Preferably, but not necessarily, filter cell 28 is as single or integral with this lug part Make.Lug 29 be preferably used to install filter cell 28 in an exit in valve body 27, wherein this goes out Interruption-forming is to the entrance 14 of aspiration circuit 10.

Preferably, the opening 37 (figure 10 illustrates) that in valve body 27 is other is by valve body 27 Portion is fluidly connected on a pipeline 36 being described in Fig. 9 a-d.This pipeline is advantageously connected to a Stress control (barostat；Not shown) upper to detect the water level 42 in cylinder 2.

Fig. 9 b shows the valve 26 cross sectional view along the line A-A of Fig. 9 a.Valve 26 by be positioned on its valve seat 22 and by The removable closing element 24 of the opening of this block valve 26 shuts or closes.Filter cell 28 preferably by mounting portion or Lug 29 is attached on the entrance 14 of recirculation circuit 10, and this mounting portion or lug are advantageously connected to by a plug connection On this recirculation circuit.Filter cell 28 preferably is attached to define on the lug 29 of entrance 14 with hang, thus The main body making this filter cell 28 extends among the inner volume of valve body 27 in a standalone fashion.Towards valve body 27 The part of filter cell 28 of inner space preferably there is or base corresponding with the shape that may move closing element 24 Shape corresponding in basis；Such as, if removable closing element 24 is spherical, then filter cell 28 advantageously comprises base The bending that in basis, or part corresponding with the shape of removable closing element 24 is corresponding and/or hemispheric shape Shape.

Fig. 9 d shows from below the cross sectional view along the line B-B shown in Fig. 9 c.In this embodiment, filter elements Part 28 advantageously has a forked shape and includes multiple finger 35a-d, these fingers have multiple fingers it Between multiple perforate 34a-e, these perforates 34a-e there are these the open entrance 38a-e (or space) to these fingers.Have Profit ground, these fingers of filter define multiple teeth or the pin of a rake.These fingers 35a-d is the most parallel or base It is parallel to water in blowdown period in basis and flows through the valve body 27 flow path to positive displacement pump 18 from cylinder.Especially, these refer to Shape part 35a-d is advantageously parallel to or substantially parallel to a flow path of water, and this flow path is by a pass of filter cell 28 Closing part is divided or deflector redirects or deflection.Therefore, fine hair is washed by the current deflected from the bottom of these fingers 35a-d Wash in these spaces, and thus these filters of secondary finger 35a-d.

Figure 10 shows the valve of Fig. 9 a-d side cross-sectional view in a closed mode, and this is carried out about Fig. 3 Describe.Owing to water is filled with cylinder 2, weep circuit 16 and has been partially filled with recirculation circuit 10, therefore may move in floatability The buoyancy of the generation on closing element 24 this removable closing element is pressed against valve seat 22 (in this state, these pumps 12,18 do not work).

Figure 11 shows the valve of Fig. 9 a-d side cross-sectional view in an open mode, and this enters about Fig. 2,4 and 5 Go description.Due to low water level 42a (Fig. 2) or due to the suction force (Fig. 4) of recirculation pump 12 or the suction of positive displacement pump 18 Power (Fig. 5), therefore valve 26 is opened.Removable closing element 24 is advantageously in close proximity to filter cell 28 or by this filtration Device element is supported, this filter cell advantageously comprises and may move the mating shapes of closing element 24 or substantially match A shape.In the case of removable closing element 24 has a substantially spherically-shaped shape, this removable closing element The 24 one eddy current that create in rotary moving caused by current during a blowdown period, this eddy current auxiliary is from filter Element 28 removes such as fine hair, as above.

Figure 12 a-d shows the perspective view of the filter cell 28 gone out as shown in FIG. 6.Figure 12 a is from (that is, face, top To the upper surface 30 of this filter cell within valve body 27) show filter cell 28.Filter cell 28 is favourable Ground includes multiple perforate 34a-e, and these perforates extend to a horizontal boundary of this filter cell 28 so that each open Hole 34a-e has the side of a sideways open.

(that is, it shows this filter cell 28 that may move closing element 24 or valve 26 dorsad to Figure 12 b from below Surface 32) show filter cell 28.As described above, filter cell can of advantageously lug 29 Point, this lug has concurrently formed the mounting portion installing filter cell 28 in the opening at valve body 27.By Filter cell 28 is supported on side with hang by this, and the main body of this filter cell 28 stretches into valve body 27 Inner space among.The outer surface of filter cell 28 facings a part for the inner surface of valve body 27, and this mistake Filter element 28 be preferably arranged in so that the outer of this filter cell or lower surface 32 and this valve body inner surface it Between exist a space 33.

Figure 12 c shows a side view of filter cell 28, and one of them arrow depicts a cycles of washing A recirculation stage during current.Figure 12 c also show the recirculation pipe 11 attachment on lug 29.Water is from filter The upside 30 of element 28 to the downside 32 of filter cell through these perforates 34a-e of filter cell, and enters and follows Loop back path 10, advantageously through an opening in mounting portion or lug 29.

Arrow in Figure 12 c and 12d indicates the current during a recirculation stage.Fine hair or foreign body detention exist In these fingers 35a-d of filter 28 or tooth, and it is washed to and these perforates of these fingers along these fingers In relative for a 34a-e bottom, bottom this in have collected fine hair and foreign body.In contrast, at one of a cycles of washing During blowdown period, washings flow through filter cell 28 from above through the perforate in valve seat 22, and similarly Some water flow out closed circuit 10 in the opposite direction.These current from the bottom of these fingers towards perforate entrance 38a-e Direction on wash fine hair and foreign body.Thus, any fine hair or the foreign body that capture in filter cell 28 are easily washed Fall, and for good and all do not caught in filter cell 28 (that is, these filter openings 34a-e of filter or these In finger 35a-d).Further, it is preferable to ground has one near a part for the filter cell 28 of recirculation circuit 10 Closing surface.In other words, these perforates 34a-e does not preferably extend across the whole surface of a part for filter cell 28, This whole surface extends in weep circuit 16.The closedown part of filter cell 28 can catch bigger foreign body and not have this The risk of these perforates 34a-e of a little foreign matters from being blocked filters 28.Further, the closedown part auxiliary row of filter cell 28 The above-mentioned deflection of water current, and thus auxiliary high-efficiency cleaning filter cell 28.Mistake with these filters finger 35a-d Filter element 28 preferably includes a recessed or shape for hemisphere.

Figure 13 depicts the schematic cross-section front view of a kind of washing machine 1' according to an alternate embodiment.Multiple with above-mentioned The corresponding multiple elements of element refer to by these equal reference numbers.About ins and outs and the feature operation of these elements, Entirely by reference to these embodiments above-mentioned.Contrary with above-described embodiment of Fig. 1, the one of the recirculation circuit 10 of the washing machine 1' of Figure 13 Individual entrance 14' is positioned at valve 26 upstream, and this entrance 14' is connected on cylinder 2 especially.Owing to recirculation entrance 14' is positioned at valve Door 26 upstreams, therefore this valve 26 kept shutting or closing during a recirculation stage, i.e. the only water in cylinder 2 is carried out Circulation.Filter cell 28 is corresponding to above-described embodiment, and prevents fine hair and foreign body to enter recirculation circuit, as mentioned above 's.When during a washing operation of washing machine 1', cylinder 4 rotates, rotation cylinder result in cylinder 2 and flows through filter elements The current of part 28.Especially, the current on the end direction of finger 35a-d are by these perforates at filter cell 28 The fine hair captured in 34a-d and other foreign bodies wash out these perforates 34a-d.Therefore, filter cell 28 is by cylinder 2 and rolling Between cylinder 4, the current in space cleaning of.Especially, if washing machine operates under a rollover patterns, i.e. when cylinder 4 When direction of rotation is repeatedly changed during a washing operation, filter cell is by repeatedly and the most up hill and dale by clearly Clean.In one subsequently blowdown period, owing to the suction force of positive displacement pump 18 opens valve 26, as described about Fig. 5, therefore warp Fine hair and the foreign body of washing are drained into weep circuit 16 from cylinder 2.Fine hair passes discharge opeing filter 20, and bigger foreign body is such as Coin is trapped in wherein to prevent these foreign bodies from arriving and damage possibly or block positive displacement pump 18.Preferably, discharge opeing Filter 20 be removable or at least user can close in case cleaning, therefore user can remove seizure the most Individual foreign body.

Figure 14 a shows a further embodiment of a filter cell 28' in the perspective.These similar or phases With numeral for the most similar or identical element.Compared with above-mentioned filter cell 28, these filters of Figure 14 a Finger 35a'-d' is shaped differently and is oriented.Each filter finger 35a'-d' includes at least one line part Point.Compared with above-mentioned filter cell 28, each at least some of in the finger 35a'-d' of filter 28' is not curved Bent or recessed.When in its operating position in the filter cell 28' of Figure 14 a is arranged at valve, such as institute in Figure 14 b Illustrate, these filters finger 35a'-d' be oriented so as to from the current of opening of valve seat 22 (such as at one During blowdown period) hit these filters finger 35a'-d' with a right angle or basic right angle.Especially, current are with one Individual basic right angle hits the straight line portion of these fingers 35a'-d', i.e. (draining) water (flow) direction of current or power are the most vertical Straight in these filters finger 35a'-d'.Therefore, at these filters finger 35a'-d'(, they define filtration to current The actual filtration district of device element) upper its maximum, force that applies, and therefore these between these filters finger 35a'-d' are opened Maximum, force is applied on the fine hair caught in hole and foreign body.Thus by fine hair and foreign body from these filters finger 35a'-d' Loosened efficiently and washed away.It addition, as it has been described above, the closing upper surface 30' of filter cell 28' makes from valve seat 22 The current of opening are arranged essentially parallel to these filters finger 35a'-d' and deflect or redirect, so that due to combination Water (flow) direction (vertical and be parallel to these filters finger 35a'-d'), loose fine hair and foreign body are by effectively from mistake Filter element 28' pours in discharge opeing suction tube 17.

Figure 15 a shows a filter cell 28 " the perspective view of just another embodiment.Similar or identical numeral For these similar or identical elements as above.Compared with above-mentioned filter cell 28,28', filter cell 28 " bag Include multiple filter finger 35a "-f ", these filter fingers are preferably essentially from one with a confining surface Extend in circular main body.These filters finger 35a "-f " the most straight formation, i.e. it not recessed or bending, To about similar described by the filter 28' of Figure 14 a-b.Therefore with filter cell 28 " valve operation in and such as Shown in Figure 15 b, the water flux from the opening of valve seat 22 hits filter cell 28 with a basic right angle ", Particularly its filtering area, i.e. these filters finger 35a "-f ".It addition, this filter 28 " upper surface 30 " the most recessed Shape or hemispheric and define and flow out from cylinder 2 for water and enter the deflecting element in above-mentioned valve.Therefore, Filter cell 28 " provide and describe these identical advantages about Figure 14 a-b.

Claims (17)

1. washing machine (1,1') including:

One cylinder (2),

One weep circuit (16), it is upper for discharging fluid from this cylinder (2) that this weep circuit is fluidly connected to this cylinder (2),

One recirculation circuit (10), this recirculation circuit (10) is fluidly connected on a bottom of this cylinder (2) for inciting somebody to action Fluid is recycled to this cylinder (2) from this bottom of this cylinder (2), and

One filter cell (28,28', 28 "), this filter cell be positioned at this recirculation circuit (10) an entrance (14, 14') place is to prevent foreign body from entering this recirculation circuit,

It is characterized in that, at least one filter openings (34a-e) of this filter cell (28,28', 28 ") extends to this mistake One horizontal boundary of filter element (28,28', 28 "), so that this at least one filter openings (34a-e) is included in An opening (38a-e) in its girth, and/or this at least one filter openings (34a-e) defines and is spaced apart from each other At least two filter finger (35a-d, 35a'-d', 35a "-f "), this filter cell includes towards this recirculation circuit The main body of entrance, and this at least one filter openings arranges on the body.

Washing machine the most according to claim 1, wherein, the main body of this filter cell (28,28', 28 ") and/or main Region extends in this weep circuit (16) as an independent component or extends in this cylinder (2) or extend to this washing machine A storage tank in.

Washing machine the most according to claim 1 and 2, wherein, space (33) be formed at this filter cell (28, 28', 28 ") and this weep circuit (16) or this cylinder (2) or this washing machine a storage tank an inner surface between, and/ Or wherein, this recirculation circuit entrance (14) is arranged at the back side (32) place of this filter cell (28,28', 28 ").

Washing machine the most according to claim 1 and 2, wherein, the main body of this filter cell (28,28', 28 ") and/or master Wanting region to define a flowing deflecting element, this flowing deflecting element is used for making water from this cylinder during a blowdown period (2) flowing to this weep circuit (16) deflects and/or redirects.

Washing machine the most according to claim 1 and 2, wherein, extends in this weep circuit (16) or this cylinder (2) or storage tank The free end of filter cell (28,28', 28 ") include this at least one filter openings (34a-e), and the most attached Receive or be positioned at the part bag of this filter cell in this weep circuit (16) or this cylinder (2) or storage tank (28,28', 28 ") Include a confining surface.

Washing machine the most according to claim 1 and 2, wherein, this at least two filter finger (35a-d, 35a'-d', 35a "-f ") be parallel to fluid and flow to the flow direction of weep circuit (16) from this cylinder (2).

Washing machine the most according to claim 1 and 2, wherein, this at least one filter openings (34a-e) includes a shape Shape, this shape gradually becomes from a bottom of this opening (38a-e) to this at least one filter openings relative with this opening Carefully, and/or every from these filter fingers of this at least two filter finger (35a-d, 35a'-d', 35a "-f ") An individual bottom is tapered to its free end.

Washing machine the most according to claim 1 and 2, wherein, this at least one filter openings (34a-e) include and/or This at least two filter finger (35a-d) includes selected from rectangle, triangle, a semicircular shape.

Washing machine the most according to claim 1 and 2, wherein, this filter cell (28,28', 28 ") include at least four Filter finger (35a-d, 35a'-d', 35a "-f ").

Washing machine the most according to claim 1 and 2, wherein, this washing machine includes being arranged at this cylinder (2) and this discharge opeing A valve (26) between loop (16), wherein this valve (26) includes a valve body (27), a valve seat (22) With a removable closing element (24), this removable closing element (24) is adapted to connect releasedly with this valve seat (22) Close to close or open this valve (26).

11. washing machine according to claim 10, wherein, this filter cell (28,28', 28 ") and/or this filter The entrance of element is placed on the downstream of a valve seat (22) of this valve (26).

12. washing machine according to claim 10, wherein, this valve according to this cylinder (2) and this valve body (27) it Between water level (42a-d) and/or pressure reduction close and open.

13. washing machine according to claim 10, wherein, towards the filter cell (28,28', 28 ") of this valve (26) A surface (30) be configured to receive removable closing element that is upper in described surface (30) or that be positioned at described surface (30) place (24)。

14. washing machine according to claim 10, wherein, this removable closing element (24) includes a spherical shape Shape.

15. washing machine according to claim 1 and 2, wherein, this filter cell (28,28', 28 ") at least one section Facial plane include one completely or partially arch or bending or hemispheric cross section, and/or this filter cell (28,28', 28 ") it is the most recessed on the direction discharging fluid or in terms of the side at this cylinder place.

16. washing machine according to claim 9, wherein, this filter cell (28,28', 28 ") include at least six mistake Filter finger.

17. washing machine according to claim 9, wherein, this filter cell (28,28', 28 ") include at least eight mistake Filter finger.