CN102071559B - Washing machine with improved filter for the draining circuit - Google Patents

Abstract

A washing machine (1) comprises a washing tub (5), a draining sump (9) fluidly communicating to the internal of the washing tub (5) and fluidly connected to a draining circuit (10), a filter (12) associated or associable to the draining sump (9) and provided with a filtering surface (19) adapted for allowing the passage of a liquid and for impeding the passage of bodies of fixed dimensions. The filter (12) comprises at least one by-pass conduit (21) adapted for directing a flow of washing liquid from the washing tub (5) to the bottom of the draining sump (9), by-passing the filtering surface (19).

Description

There is the washing machine of the filter of the improvement for draining circuit

Technical field

The present invention relates to a kind of washing machine, this washing machine has the filter of the improvement for draining circuit.

Background technology

It is emphasized that in this application, statement " washing machine " can refer to the washing machine (namely only can wash the washing machine with rinsing clothes) of " simply ", also can refer to clothes washer-dryer (i.e. the washing machine of all right drying clothes).

Next in addition, even if be described with regard to front loading type washing machine by means of only the mode of citing the present invention, be apparent that, the present invention is when substantially can being applied to top loading type washing machine without any need for when important modification.

Now, washing machine generally includes shell, and this shell is provided with the load/unload door allowing turnover washtub, and washtub holds the revolvable cylinder with perforation, and clothing to be washed can be loaded onto in cylinder.

Known washing machine comprises the water inlet loop for water and washing/rinse products (i.e. washing agent, softener etc.) being supplied in washtub.

Known washing machine also comprises the draining circuit generally including draining pump and some drainpipes, and this draining circuit is used for will coming from washing/rinse liquid (i.e. water and be mixed with the water of the washing/rinse products) discharge of washtub after washing and rinse stage.

Draining circuit generally includes filter, filter is placed between the bottom of washtub and draining pump, for keeping all undesirable object by being arranged in the hole on drum circumference here or by falling into all undesirable object bottom washtub (button such as fallen down from clothing, the coin etc. bringing washing machine because of carelessness into) between cylinder and washtub, these objects can damage or block draining pump.

Most of common filter is made up of the cylindrical box body being attached to washing machine base portion, and this filter containing fluid is connected to the filter that can remove of draining pump upstream.The stopper that can remove fast via one and close to holding this box body of filter, this just allows filter to be removed and to clean, stopper is covered by the door of the antetheca or rear wall that are arranged in washing machine shell, and shell is depended in the position of door.

Also have some known washing machines to comprise the rhone being formed at washtub side surface lower area (i.e. the bottom of washtub), the internal flow UNICOM of this rhone and washtub, and fluid is connected to the upstream of draining pump.

In rhone, be mounted with filter, described filter for keeping the undesirable object that may be included in washing/rinsing liquid here so that prevent these objects arrive draining pump; This filter is normally provided with the cup shaped body of filtering surface, and namely described filtering surface is provided with the surface in multiple aperture, and being dimensioned to of these apertures allows washing/rinsing liquid to pass through, but stops the foreign body with fixed dimension to pass through.

In this case, the revolvable cylinder of washing machine is provided with at least one opening, and described opening is closed, for enabling user from the interior contact filter of washing machine, such as to clean filter by the lid that can remove; Typically, filter can be removed by from rhone, so that filter is clean.

In GB1197919, such as describe a kind of washing machine of prior art, this washing machine comprises a kind of filter, this filter is for stoping residual dirt to arrive and blocking draining pump and drainpipe thereof, and this filter can be removed to carry out checking, clean and changing by the inside from washtub, above documents disclose a kind of washing machine, this washing machine comprises the tank (i.e. washtub) of base portion with opening, by managing the draining pump that is connected with the opening of tank and arranging basket (i.e. swing roller) in the sink; Cupped form of strainer element is removably located in the opening of tank, and the sidewall of filter cell has filter port, and in basket, is provided with opening to provide the path of turnover filter cell, and described opening is provided with the closure member that can remove.

The known washing machine of another example is described in FR2190966, this washing machine is provided with the filter that can remove from the inside of washtub, above documents disclose a kind of top loading type washing machine, this washing machine comprises the washtub holding swing roller, the side surface of cylinder is provided with first and with first second of relatively arranging, first for load/unload clothing, second for reclaiming the fabric (linen) that may slide between washtub and cylinder.Be fixed with connector in the bottom of washtub, this connector is provided with the pipeline for one of the end receiving drainpipe at its interior zone.Arrange in described connector and have family, this room is used for receiving filtration device, can by open simultaneously cylinder two doors and close to filter.

In addition, European patent n.EP1849904 also illustrate that a kind of comprising can from the known washing machine of the filter of the interior contact from washtub, the document discloses a kind of top loading type washing machine, this washing machine comprises with lifter all-in-one-piece drain filter close to device, and described lifter is relative in diametric(al) with cylinder inlet/outlet (namely allowing the inner cap passing in and out cylinder).Drain filter comprises main body and lid close to device, and the opening included by this main body is aimed at the opening with same shape and size made in cylinder body, and described lid is hinged in described main body, and by simple ratchet mechanism locking on the body.

But, be provided with the rhone of the bottom being arranged in washtub and be placed in rhone and there is for the above mentioned known washing machine of the filter of all undesirable object kept washing/rinsing liquid here and may comprise the defect will explained below; When starting washing cycle, washing agent enters in washtub by means of cold water stream, and then water starts to be heated, and cylinder starts to rotate; The rising of water temperature and promote that detergent dissolution is in washings primarily of the mechanical agitation that the rotation of cylinder causes.Known scheme Problems existing is: sometimes, flowing into washing agent in washtub by means of cold water can advance in rhone what be not dissolved in water, and be tending towards the bottom accumulating in rhone, in this case, due to the shape of rhone, and owing to there is the filter reducing to flow through the speed of the current of filter, the mechanical agitation of water works hardly.

Therefore, the bottom of rhone stayed by a certain amount of washing agent, and is not dissolved in washings, thus reduces whole detersive efficiency.

Because portion washes agent is not dissolved in washings, the amount of washing agent required when the amount therefore reaching the washing agent required for certain clean result is fully dissolved than whole washing agent is large, therefore there is the problem of washing agent waste.

In addition, the washing agent accumulated in bottom rhone may block the passage of washing/rinsing liquid sometimes, and washing machine may be caused to overflow water problem thereupon.

Summary of the invention

Therefore; target of the present invention guarantees that all washing/rinse products (such as washing agent, softener etc.) entered in the washtub of washing machine are all dissolved in washings substantially, to effectively utilize all amounts entering the washing/rinse products of washtub in washing cycle.

In this target, another object of the present invention is the bottom preventing washing/rinse products from accumulating in rhone, thus stops that flow of liquor is to draining circuit.

Another object of the present invention is when substantially only doing very few modifications to known washing machine, the present invention is also applied in known washing machine.

Therefore, the object of the invention is to solve the problem, overcome quoted defect of the prior art thus.

The applicant has been found that the washing/rinse products by using the filter of the following draining circuit for washing machine to remove to accumulate in bottom rhone, promote that these washing/rinse products are dissolved in washings, and make the water comprising these lysed products reenter in washtub, described filter comprises at least one bypass line, described bypass line walks around the filtering surface of filter, and for the flow of liquor coming from washtub being directed to the bottom of rhone, rhone connects washtub and draining circuit, filter is connected to and maybe can be connected on described rhone

Especially, above-mentioned and become other target of more understanding hereinafter and object is realized by a kind of washing machine of the present invention, this washing machine comprises:

-washtub;

-rhone, the internal fluid communication of described rhone and described washtub is also connected with draining circuit fluid;

-filter, described filter is connected to and maybe can be connected to described rhone and be provided with for allowing liquid to pass through and stoping the filtering surface that the object with fixed dimension passes through.

Described filter comprises at least one bypass line, and described bypass line for being directed to the bottom of described sink with walking around described filtering surface by the flow of liquor coming from described washtub.

Preferably, described bypass line comprises the pipeline for making the inside of described washtub be connected with the bottom flow of described rhone, and described pipeline has the side surface without perforation, thus the substantially all cleaning solutions entering described pipeline in described washtub all flow in described rhone.

Suitably, the shape and size of at least one bypass line described are passed through for allowing liquid, and stop the foreign body with fixed dimension to pass through.

Advantageously, if the shape and size of at least one bypass line described are designed to foreign body not by described filtering surface, so described foreign body can not pass through described bypass line.

Preferably, the speed being dimensioned to the liquid making to leave at least one bypass line described of at least one bypass line described is greater than the speed of the liquid entering at least one bypass line described.

Advantageously, the cross section of the outlet of at least one bypass line described is less than the cross section of the import of described bypass line, thus the speed leaving the liquid stream of described bypass line is greater than the speed of the liquid stream entering described bypass line.

Preferably, when described filter is positioned in described rhone, the import of at least one bypass line described is positioned at above the bottom of described washtub, so as the import of at least one bypass line described during revolvable drum rotating by described revolvable cylinder the water impact of moving.

Suitably, described filter can remove from described rhone.

Advantageously, described filter comprises for making described filter be fixed to the coupling arrangement of described rhone in the mode that can remove.

Preferably, described filter comprises the grip element for allowing user easily can remove described filter from described rhone.

Further, the present invention includes a kind of filter of the draining circuit for washing machine, described filter comprises for allowing liquid to pass through and stoping the filtering surface that the object with fixed dimension passes through; Described filter comprises at least one bypass line, and described bypass line for being directed to the opposite side of described filtering surface with walking around described filtering surface by the liquid stream coming from described filtering surface side.

Advantageously, the shape and size of at least one bypass line described are passed through for allowing liquid, and stop the foreign body with fixed dimension to pass through.

Suitably, if the shape and size of at least one bypass line described are designed to foreign body not by described filtering surface, so described foreign body can not pass through described bypass line.

Preferably, the speed being dimensioned to the liquid making to leave at least one bypass line described of at least one bypass line described is greater than the speed of the liquid entering at least one bypass line described.

Suitably, the cross section of the outlet of at least one bypass line described is less than the import cross section of described bypass line, thus the speed leaving the liquid stream of described bypass line is greater than the speed of the liquid stream entering described bypass line.

Accompanying drawing explanation

From the description provided with non-limiting example with reference to accompanying drawing, clearly the features and advantages of the present invention can be understood, in accompanying drawing:

Fig. 1 is the partial cross side view according to washing machine of the present invention;

Fig. 2 is the stereogram of the washtub according to washing machine of the present invention, wherein for clarity sake analyses and observe and illustrates some parts and remove some parts;

Fig. 3 is the partial enlarged drawing of Fig. 2;

Fig. 4 is the side view cutaway drawing of the washtub of Fig. 2;

Fig. 5 is the partial enlarged drawing of Fig. 4;

Fig. 6 is the front sectional view of the cylindric washer of Fig. 2;

Fig. 7 is the partial enlarged drawing of Fig. 6;

Fig. 8 is the cross sectional side exploded view of the filter of the washing machine of Fig. 2;

Fig. 9 is the side view cutaway drawing of the filter of Fig. 8;

Figure 10 is the perspective exploded view of the filter of Fig. 8 and Fig. 9;

Figure 11 and 12 is two perspective views of another embodiment of filter according to washing machine of the present invention;

Figure 13 is the side view of the filter of Figure 11 and 12;

Figure 14 is the side view cutaway drawing of filter along the XIV-XIV plane of Figure 13 of Figure 13;

Figure 15 and 16 is perspective view and the side view cutaway drawing of another embodiment of filter according to washing machine of the present invention;

Figure 17 and 18 is perspective view and the side view cutaway drawing of another embodiment of filter according to washing machine of the present invention;

Figure 19 and 20 is perspective view and the side view cutaway drawing of another embodiment of filter according to washing machine of the present invention;

Figure 21 and 22 is two perspective views of another embodiment of filter according to washing machine of the present invention;

Figure 23 is the side view of the filter of Figure 21 and 22;

Figure 24 is the side view cutaway drawing of filter along the XXIV-XXIV plane of Figure 23 of Figure 23.

Detailed description of the invention

Illustrated in the accompanying drawings according to washing machine 1 of the present invention advantageously front loading type washing machine; But be apparent that, the present invention is when substantially can being applied to top loading type washing machine without any need for when important modification.

Be apparent that in addition, the present invention when substantially not only can being applied to the washing machine (namely only can wash the washing machine with rinsing clothes) of " simply " without any need for when amendment, but also can be applied to clothes washer-dryer (i.e. the washing machine of all right drying clothes).

With reference to accompanying drawing, the washing machine 1 according to the present invention schematically shown in FIG comprises shell 2, and the antetheca 2a of shell 2 is formed with import and export 3, imports and exports 3 and is provided with load/unload door 4, and door 4 allows to pass in and out the washtub 5 be contained in shell 2; Washtub 5 holds the revolvable cylinder 6 with perforation, and clothing (not shown) to be washed can be loaded in cylinder 6 (in the accompanying drawings not shown revolvable have the hole that cylinder 6 side surface of perforation is formed).

Washtub 5 is preferably connected with shell 2 via flexible bellow 7, and bellows 7 is connected between the surface of the front openings of the washtub 5 towards import and export 3 and the edge (border) of shell.

Washing machine 1 comprises the water inlet loop 8 for supplying feedwater and washing/rinse products (i.e. washing agent, softener etc.) in washtub 5; Water inlet loop 8 advantageously comprises the drawer 8a that can remove, and drawer 8a is used for filling by washing and/or rinse products (such as washing agent, softener, bleaching agent etc.).

Water inlet loop 8 also comprises water inlet pipe 8b, and water inlet pipe 8b can be connected to the water delivery main that washing machine 1 outside exists, and for clean water is transported to drawer 8a; Water inlet loop 8 also comprises outlet pipe 8c, and outlet pipe 8c makes drawer 8a be connected with washtub 5 fluid, and for water and washing/rinse products are transported in washtub 5.Advantageously, water inlet loop 8 also comprises one or more for regulating the valve (not shown) of current.

When clean water enters in drawer 8a via water inlet pipe 8b, this clean water has washed away the washing/rinse products held in drawer 8a, and is transported in washtub 5 by these products via outlet pipe 8c.

In another embodiment unshowned, water inlet loop 8 comprises the one or more reservoirs for one or more washing/rinse products, and these washing/rinse products a certain amount of are automatically transported to washtub 5 according to washing procedure by from described reservoir.

Washing machine 1 comprises rhone 9, rhone 9 is preferably formed on the side surface 5a of washtub 5, with the internal fluid communication of washtub 5 and fluid is connected to draining circuit 10, draining circuit 10 is for a washing/rinse liquid (namely water and being mixed with washs and/or the water of rinse products) discharge from washtub 5.

Advantageously, rhone 9 is placed in the lower area of washtub 5, the liquid held can be carried by towards this rhone 9 by the effect of gravity, be therefore transported to draining circuit 10 in washtub 5.

Preferably, rhone 9, to be formed with the mode of the integral formula structure of the lower area of washtub 5, forms advantageous by by molding plastic material.

Draining circuit 10 comprises the draining pump 11 being provided with impeller (not shown), described impeller is contained in blade wheel chamber 11a, blade wheel chamber 11a preferably but not necessarily to be formed with the mode of draining pump 9 and the integral formula structure of washtub 5, preferably corresponds to the extension of draining pump 9.

In another embodiment unshowned, draining circuit 10 can also be provided with closed circuit, this closed circuit is used for discharging washing/rinse liquid from the bottom of washtub 5, and described liquid is reentered in the upper area of washtub, to improve the humidity of clothing.The closed circuit of washing machine is known in the prior art, is therefore no longer described in detail.

Washing machine 1 comprises the filter 12 being connected to and maybe can being connected to rhone 9, filter 12 passes through for allowing cleaning solution, and stops the object coming from the fixed dimension of washtub 5 to pass through and arrive draining circuit 10 (therefore arriving the draining pump 11 of draining circuit 10).These objects can be the coin or other pocket-handkerchief that fill in the pocket of button, trousers or other clothes such as fallen down from clothing and the end of a thread, fine hair etc. of bringing washing machine 1 because of carelessness into.

In the embodiments shown in the drawings, filter 12 is box-like (or cup-shapeds), and described filter advantageously general cylindrical, but described filter also can be prism or cube or parallelepiped or other box-like configuration any.

Filter 12 advantageously comprises for allowing liquid to pass through and the filtering surface 19 stoping the object of fixed dimension to pass through; Filtering surface 19 allows the cleaning solution coming from washtub 5 pass through and arrive draining circuit 10, but stops the object (such as button, coin etc.) of preliminary dimension to pass through.

In the embodiment shown in Fig. 1-2 0, filter 12 is general cylindrical, and filtering surface 19 is included in the cylindrical side of filter 12.

In another embodiment shown in Figure 21-24, a part of the filtering surface 19 advantageously basal surface 12a of filter 12.

In another embodiment unshowned, filtering surface 19 is included in both the cylindrical side of filter 12 and basal surface 12a.

Be apparent that, filter 12 can comprise single filtering surface or multiple filtering surface.

Advantageously, filtering surface 19 is provided with multiple opening 20, and these openings 20 pass through for allowing liquid, but the object (such as coin, button etc.) stoping size to be greater than predetermined value passes through, and predetermined value depends on the size of opening 20.

In all embodiments shown in the drawings, filter 12 can be removed by from rhone 9, and such as, in order to clean filter, and described filter can be repositioned in rhone 9 after having cleaned.

In this case, filter 12 comprises coupling arrangement, and described coupling arrangement is used for filter to be fixed to rhone 9 in the mode that can remove.

Advantageously, described coupling arrangement comprises the top edge 12b periphery flange 13 outwardly from filter 12, flange 13 is for being placed with the edge against the washtub 5 around rhone 9, and the remainder of filter 12 is positioned in rhone 9, thus prevent filter 12 from falling in rhone 9.

In the embodiment shown in Fig. 2-10, described coupling arrangement also comprises and is provided for filter 12 and can be engaged the occlusion adapting device be connected with rhone 9.Advantageously, described occlusion adapting device comprises arm 14a, 14b that two or more are fixed to the side surface of filter 12, and described arm is can elastic deformation, thus they can by the cylindrical side relative to filter 12 radially elasticity press.

Advantageously, described arm can be connected to filter 12, as being labeled as the arm of 14a in Fig. 2-10 at the basal surface 12a place near filter 12; Or described arm can be connected to filter 12, as being labeled as the arm of 14b in the central area of the cylindrical side near filter 12; Be apparent that, filter 12 can only be included in the arm 14a being connected to filter 12 near the basal surface 12a place of filter 12, or the central area that can only be included in the cylindrical side of close filter 12 is connected to the arm 14b of filter 12, or the central area that can comprise the one or more arm and one or more cylindrical side at close filter that are connected to filter 12 at the basal surface 12a place near filter is connected to the arm of filter 12.

Advantageously, the lower area 15 of arm 14a, 14b be tilt at least partially, make the distance of the cylindrical side of the filter 12 of distance at least partially of the lower area 15 of described arm 14a, 14b increasing when the top edge 12b of filter 12 like this.

It is suitable that, the free end 16 of arm 14a, 14b tilts in the opposite direction relative to the lower area 15 of same arm; In other words, arm 14a, 14b are tilt near their free end 16, make the distance of the cylindrical side of described arm distance filter 12 reduce when the top edge 12b of close filter 12 like this.

In the embodiment shown in Figure 11-24, arm 14b is only had to be connected to filter 12 in the central area of the cylindrical side near filter 12; In these embodiments, the lower area 15 of arm 14b has zigzag fashion substantially.

Annular screen 17 (annular riddle) is advantageously given prominence to from the edge of the washtub 5 around rhone 9 towards the inside of rhone.With reference to figure 5-7, during filter 12 is inserted rhone 9, the lower area 15 of arm 14a, 14b slides against annular screen 17, and tilts due to this lower area 15, and arm 14a, 14b are flexibly pushed to the cylindrical side of filter 12.After the free end 16 of arm 14a, 14b crosses annular screen 17, arm 14a, 14b flexibly to the external movement of filter 12, thus are positioned at the below of annular screen 17 by the free end 16 of described arm; Thus, filter 12 is locked into rhone 9.

In order to remove filter 12 from rhone 9, user must be pulled through filter 12 in the opposite direction relative to rhone 9; The free end 16 of arm 14a, 14b slides against annular screen 17, and due to the certain tilt of free end 16, they cause arm 14a, 14b flexibly to move towards the cylindrical side of filter 12, thus from annular screen 17 release arm 14a, 14b, and filter 12 can be freely removed.

In another embodiment unshowned, described coupling arrangement can comprise screw thread (not shown), and described screw thread is arranged in the cylindrical side of filter 12; This screw thread is for engaging with the corresponding other screw thread (also not shown) be arranged on rhone 9 inner surface, and therefore filter 12 can be threaded connection and is fixed to rhone 9 and removes from rhone 9.

In also another embodiment unshowned, described coupling arrangement can comprise bayonet coupling.

Advantageously, the grip element that can describe better below filter 12 comprises, described grip element is provided for user easily can remove filter 12 from rhone 9.

In also another embodiment unshowned, filter 12 is fixed to rhone 9 and/or to be formed with the mode of the integral formula structure of rhone 9; In the case of the latter, user directly can perform the clean of filter 12 in rhone 9.Be apparent that, when the integral formula structure of filter 12 and rhone, filter 12 and rhone 9 partly or wholly overlap.

Such as in order to carry out cleaning and/or replacing to filter 12, can from the revolvable inside with the cylinder 6 of perforation via suitable aperture (not shown) close to filter 12, described aperture is arranged on the side surface 6a of cylinder 6, thus on the special angle position of cylinder 6 this aperture towards rhone 9; During the program for washing performing washing machine, this aperture is closed by closing device 18 (such as lid or observation window), and described closing device is used for selectively closing described aperture.In the embodiment shown in Fig. 1, closing device 18 advantageously comprises lifter, and described lifter can relative to the side surface 6a pivotable of cylinder 6, thus described lifter can be raised to allow close to aperture below; This lifter is just the same with common lifter effect when not being raised, and therefore this lifter is conducive to improving the stirring to clothing during cylinder 6 rotates.

Advantageously, filter 12 comprises at least one bypass line (by-pass conduit) 21, and the flow of liquor coming from washtub 5 to be directed to the bottom of rhone 9 by bypass line 21 for walking around filtering surface 19 ground; Therefore this flow of liquor removes the washing/rinse products that may accumulate in bottom rhone 9, thus promotes that these washing/rinse products are dissolved in washings.

The flow of liquor entering rhone 9 via bypass line 21 also causes eddying motion being contained in the liquid in rhone 9, this eddying motion makes aforesaid liquid (washing/rinse products wherein originally accumulated in bottom rhone 9 is dissolved in aforesaid liquid now) by filtering surface 19, thus arrives washtub 5.

Bypass line 21 is pipelines that the bottom flow of inside with rhone for making washtub 5 is connected, and described pipeline has the side surface without perforation, thus the substantially all cleaning solutions entering this pipeline in washtub 5 all flow in rhone 9.

Special it is emphasized that bypass line 21 does not belong to filtering surface 19, namely described bypass line is not included in filtering surface 19.

Advantageously, the shape and size of bypass line 21 are passed through for allowing liquid, and stop the foreign body of preliminary dimension (such as coin, ring, button and similar pocket-handkerchief) to pass through; Especially, if bypass line 21 be dimensioned to foreign body not by filtering surface 19, so described foreign body can not pass through bypass line 21.

It is suitable that, bypass line 21 is arranged so that during cylinder 6 rotates, bypass line 21 is entered by the flow of liquor (flux) of the rotation campaign of cylinder 6, and due to the given shape of bypass line 21, flow of liquor adds bottom and/or the side surface of flow speed and direction rhone 9, thus the washing/rinse products accumulated in bottom rhone 9 is impacted with enough large power, to remove these washing/rinse products, and promote that these washing/rinse products are dissolved in washings.

Preferably, as explained better below, bypass line 21 is arranged so that when filter 12 is positioned in rhone 9, the import of bypass line 21 is positioned at above the bottom of washtub 5, thus the import of bypass line 21 during revolvable cylinder 6 rotates by revolvable cylinder 6 the water impact of moving.

In the first embodiment shown in Fig. 2-10, filter 12 is general cylindrical, and the basal surface 12a of filter 12 is cardinal principle truncated cone shape and has aperture 12c, and this aperture 12c is preferably arranged on the corresponding less base portion of the truncated cone.

In this case, as noted earlier, filtering surface 19 is included in the cylindrical side of filter 12.

Advantageously, filter 12 comprises ducted body (hollow body) 22, ducted body 22 is preferably tubulose, give prominence to from the edge of the aperture 12c being arranged on filter 12 basal surface 12a and be partly positioned the inside of the cylindrical side of filter 12, the upper end 22a of described ducted body extends to above the top edge 12b of filter 12, therefore when filter is positioned in rhone 9, the upper end 22a of ducted body 22 protrudes from above the bottom of washtub 5, thus the upper end 22a of ducted body 22 during revolvable cylinder 6 rotates by revolvable cylinder 6 the water impact of moving.

In addition, upper end 22a extend to filter 12 top edge 12b above ducted body 22 can be grasped by user, to remove filter 12 from rhone 9; In this case, the grip element of filter comprises the upper end 22a of ducted body 22.

Advantageously but not necessarily, ducted body 22 and filter 12 almost coaxial, namely ducted body 22 is located so that the longitudinal axis (not shown) of this ducted body overlaps substantially with the longitudinal axis (also not shown) of filter 12.In another embodiment unshowned, ducted body 22 is located so that the longitudinal axis of this ducted body does not overlap with the longitudinal axis of filter 12; Such as, the longitudinal axis of ducted body 22 and the longitudinal axis of filter 12 can be parallel to each other, or can also relative to each other tilt.

During washing cycle, cleaning solution enters filter 12 from the top edge 12b of filter 12, then arrives rhone 9 by filtering surface 19 (i.e. passing hole 20); The foreign body that the size contained in cleaning solution is greater than hole 20 is trapped between filtering surface 19, the basal surface 12a of filter 12 and the outer surface of ducted body 22.

Especially, a certain amount of washing/rinse products (i.e. washing agent) be not dissolved in washings may arrive rhone 9 via hole 20, and therefore this certain amount of washing/rinse products be not dissolved in washings may accumulate in the bottom of rhone 9.

Preferably the hollow conduit 23 of general cylindrical is advantageously fixed to the inside of ducted body 22, preferably but not necessarily, hollow conduit 23 is coaxial with ducted body, has the first gap 24 like this between the inner surface and the outer surface of hollow conduit 23 of ducted body 22; Advantageously, bypass line 21 comprises this first gap 24.

Suitably but not necessarily, the upper end 23a of hollow conduit 23 is openings, and the free end 22a of the upper end 23a of hollow conduit 23 and ducted body 22 arranges accordingly.

Advantageously, ducted body 22 comprises the aperture 25 on one or more upper end 22a being arranged on it, and aperture 25 is communicated with the first gap 24 fluid, and for allowing the cleaning solution coming from washtub 5 to enter in above-mentioned first gap 24, therefore enters in bypass line 21.Advantageously, aperture 25 is passed through for allowing liquid, but the object (such as coin, button etc.) stoping size to be greater than predetermined value passes through, and described predetermined value depends on the size in aperture 25; Especially, if aperture 25 be dimensioned to object not by filtering surface 19, so described object can not pass through aperture 25 (therefore in the embodiments shown in the drawings, the size in aperture 25 is equal to or less than the size in hole 20).

Advantageously, aperture 25 is located so that when filter 12 is in rhone 9, during revolvable cylinder 6 rotates, aperture 25 by revolvable cylinder 6 the water impact of moving.

Advantageously, filter 12 shown in Fig. 2-10 comprises sliding members 26, this sliding members 26 comprises leg 27, leg 27 is preferably complementally shaped (countershaped) with the outer surface of the basal surface 12a of filter 12 at least in part, therefore in this embodiment, leg 27 is cardinal principle truncated cone shapes.

Advantageously, sliding members 26 also comprises pin 28, and this pin 28 is given prominence to from leg 27, can be slidably arranged on hollow conduit 23; Therefore pin 28 can slide into unshowned external position from the interior location shown in Fig. 9, and at described interior location, multiple spacer elements 29 that leg 27 is given prominence to the outer surface of the basal surface 12a from filter 12 contact; In described external position, the stopping element 30 (such as annular screen) be arranged on the side surface of pin 28 contacts with the inward flange 31 that the lower end 23b from hollow conduit 23 gives prominence to.

Therefore, when pin 28 is in described interior location, between the outer surface of the basal surface 12a of leg 27 and filter 12, form the second gap 32; This second gap 32 is communicated with above-mentioned first gap 24 fluid.

Advantageously, the cross section in the second gap 32 is less than the cross section in the first gap 24, therefore, accelerated when liquid flows to the second gap 32 from the first gap 24.

In general, the cross section (being the cross section in the second gap 32 in this embodiment) that the outlet of bypass line 21 has is less than the cross section of the import of bypass line 21.Like this, the speed leaving the liquid stream of bypass line 21 is greater than the speed of the liquid stream entering bypass line 21; Which ensure that liquid stream impacts the washing/rinse products accumulated in bottom rhone 9 with enough large power, to remove these washing/rinse products, and promote that these washing/rinse products are dissolved in washings.

In the embodiment of Fig. 2-10, bypass line 21 advantageously comprises gap, aperture 25, first 24 and the second gap 32.

As illustrated in figs. 5-7, when filter 12 inserts in rhone 9, leg 27 contacts with the bottom of rhone 9, and therefore pin 28 is positioned in described interior location; At this interior location, comprise gap 24, aperture 25, first and walk around filtering surface 19 ground of filter 12 with the bypass line 21 in the second gap 32 and be connected with the inside of rhone 9 and washtub 5 fluid.

During washing cycle, enter aperture 25 (aperture 25 is equivalent to the import of bypass line 21 in this case) by the washings of the rotation forces of cylinder 6, arrive the second gap 32 (namely by bypass line 21) by the first gap 24, and spray towards the bottom of rhone 9 and side surface, thus impact the washing/rinse products that may accumulate in bottom rhone 9, to remove these washing/rinse products, and promote that these washing/rinse products are dissolved in washings.As explained above, the liquid entering rhone 9 via bypass line 21 also causes eddying motion, and this eddying motion promotes that the water (washing/rinse products originally accumulated in bottom rhone 9 has been dissolved in the water held in rhone 9 now) held in rhone 9 reenters in washtub 5.

Advantageously, the length of pin 28 makes when pin 28 is in the above-mentioned interior location shown in Fig. 9, and the free end 28a of pin 28 gives prominence to from the upper end 23a of hollow conduit 23, can see from the outside of filter 12.Whether this feature enables user visually examine filter 12 correctly to have inserted in rhone 9; In fact, if filter 12 does not insert in rhone 9 completely, so pin 28 is not in described interior location, and the free end 28a of pin 28 does not give prominence to from the upper end 23a of hollow conduit 23, therefore simply by the upper end 22a observing ducted body 22, user can know whether filter 12 correctly locates.

Figure 11-14 illustrates the filter 12 according to second embodiment of the invention; In this embodiment, filter 12 is general cylindrical, and filtering surface 19 is included in the cylindrical side of filter 12.The basal surface 12a of filter 12 advantageously substantially truncated cone shape.

Equally in this embodiment, filter 12 comprises ducted body 22, ducted body 22 is preferably tubulose, from be arranged on filter 12 basal surface 12a aperture 12c edge give prominence to, partly be positioned at the inside of the cylindrical side of filter 12 and the upper end 22a of ducted body 22 extends to above the top edge 12b of filter 12, therefore when filter is positioned in rhone 9, the upper end 22a of ducted body 22 is projected into above the bottom of washtub 5, so that the upper end 22a of ducted body 22 during revolvable cylinder 6 rotates by revolvable cylinder 6 the water impact of moving.

Advantageously, ducted body 22 comprises the one or more apertures 25 be arranged on the upper end 22a of this ducted body, aperture 25 is located so that when filter 12 is in rhone 9, during revolvable cylinder 6 rotates, aperture 25 by revolvable cylinder 6 the water impact of moving.

Dividing plate 33 is projected into the inside of ducted body from the upper end 22a of ducted body 22, and the inside of ducted body 22 is divided into two first pipelines 34a, 34b by dividing plate 33, and each first pipeline is communicated with described one or more apertures 25 fluid at least.

Base portion 35 is given prominence to from the end relative with the upper end 22a of ducted body 22 of dividing plate 33; Base portion 35 is preferably complementally shaped with the outer surface of the basal surface 12a of filter 12 at least in part, and therefore in this embodiment, described base portion is cardinal principle truncated cone shape.

There is the second pipeline 36, second pipeline 36 between the outer surface and base portion 35 of the basal surface 12a of filter 12 be communicated with first pipeline 34a, 34b fluid.Advantageously, the cross section (cross section of the particularly outlet of the second pipeline 36) of the second pipeline 36 is less than the summation of the cross section of first pipeline 34a, 34b, like this, accelerated when liquid flows to the second pipeline 36 from first pipeline 34a, 34b.

In this second embodiment, bypass line 21 advantageously comprises aperture 25, first pipeline 34a, 34b and the second pipeline 36.

Figure 15 and 16 illustrates the filter 12 according to third embodiment of the invention; In this embodiment, filter 12 is different from the filter shown in Figure 11-14, because in the filter 12 shown in Figure 15 and 16, the basal surface 12a of filter 12 is cardinal principles upside down funnel shape (namely the basal surface 12a of filter 12 is the cardinal principle truncateds cone with sphering (rounded) side surface), and base portion 35 is substantially smooth; This causes the shape of the second pipeline 36 different, and the shape of the therefore outlet of bypass line 21 is different.

Figure 17 and 18 illustrates the filter 12 according to four embodiment of the invention; In this embodiment, filter 12 is different from the filter shown in Figure 11-14, because in the filter 12 shown in Figure 17 and 18, dividing plate 33 is not provided with base portion, and first pipeline 34a, 34b converges at the 12c place, aperture near the basal surface 12a being arranged on filter 12; In this embodiment, bypass line 21 comprises aperture 25, first pipeline 34a, 34b and aperture 12c.

In addition, in this embodiment, filter 12 is different from the filter shown in Figure 11-14, also because in the filter 12 shown in Figure 17 and 18, the basal surface 12a of this filter is also cardinal principle truncated cone shape, but the incline direction of the side surface of this truncated cone is contrary with the incline direction of the side surface of the truncated cone of Figure 11-14; That is, from the viewpoint of the outside of filter 12, the basal surface 12a of the filter shown in Figure 11-14 is substantially protruding.

Figure 19 and 20 illustrates the filter 12 according to fifth embodiment of the invention; In this embodiment, filter 12 is different from the filter shown in Figure 17 and 18, because in the filter 12 shown in Figure 19 and 20, the basal surface 12a of filter 12 is cardinal principles upside down funnel shape (namely the basal surface 12a of filter 12 is the cardinal principle truncateds cone with sphering side surface), and because dividing plate 33 arrives the basal surface 12a of filter, such first passage 34a, 34b keep being separated; Therefore, in this case, there are two bypass lines 21, namely comprise a bypass line 21 of a first pipeline 34a and respective apertures 25, and comprise another bypass line 21 of another the first pipeline 34b and respective apertures 25.

Figure 21-24 illustrates the filter 12 according to sixth embodiment of the invention; In this embodiment, filter 12 is general cylindrical, and filtering surface 19 is included in the basal surface 12a of filter 12; Especially, filtering surface 19 is provided with multiple opening 20 (therefore the basal surface 12a of filter 12 is provided with multiple opening 20), multiple opening 20 passes through for allowing liquid, but the object (such as coin, button etc.) stoping size to be greater than predetermined value passes through, and described predetermined value depends on the size of opening 20.

In this embodiment, the basal surface 12a of filter 12 preferably but be not necessarily substantially smooth.

In this embodiment, filter 12 comprises one or more next door 37a, 37b, described next door is connected to the side surface of filter, defines passage 38a, 38b like this between the side surface of each next door 37a, 37b, filter 12 and the basal surface 12a of filter; The position of next door 37a, 37b makes the part of the basal surface 12a of the filter 12 defining passage 38a, 38b not comprise filtering surface 19.

The top edge 12b opening accordingly of passage 38a, 38b and filter, the cleaning solution therefore held in washtub 5 can admission passage 38a, 38b; With passage 38a, 38b accordingly, on the basal surface 12a that at least one water outlet 39 is arranged on filter 12 and/or on side surface, thus liquid can flow out from passage 38a, 38b via this aperture 39.

Therefore, in this embodiment, have two bypass lines 21, each bypass line comprises passage one of 38a, 38b and corresponding water outlet 39.

Be apparent that, filter 12 also can only include a passage, therefore only include a bypass line, or filter 12 can comprise two or more passages, therefore comprises two or more bypass lines 21.

Preferably but not necessarily, the upper end 40 of next door 37a, 37b extends to above the top edge 12b of filter 12, thus when filter 12 is positioned in rhone 9, the import of passage 38a, 38b is projected into above the bottom of washtub 5, so as the import of passage 38a, 38b during revolvable cylinder 6 rotates by revolvable cylinder 6 the water impact of moving.

Advantageously, the upper end 40 of next door 37a, 37b has curved shape, to promote that cleaning solution enters in corresponding bypass line 21.

Advantageously, equally preferably, filter 12 comprises the grip element for enabling user easily remove filter 12 from rhone 9; In this embodiment, described grip element comprises handle 41, and handle 41 is preferably fixed to the upper end 40 of next door 37a, 37b.

In another embodiment unshowned, handle 41 can connect two regions of filter 12 top edge 12b.

In another embodiment unshowned, bypass line can comprise one or more pipe or pipeline, described pipe or pipeline are such as connected to the side surface of filter 12, and the flow of liquor coming from washtub 5 to be directed to the bottom of rhone 9 by filtering surface 19 ground for walking around filter 12; Such a or multiple pipe or pipeline can be connected to the outside of filter side surface or the inner side of filter side surface, or one or more pipe or pipeline can be connected to the outside of filter side surface, and one or more other pipe or pipeline can be connected to the inner side of filter side surface.

In also another embodiment unshowned, one or more bypass line (namely such a or multiple bypass line is through the side surface of filter) can be formed inside filter side surface, these bypass lines for being directed to the bottom of rhone with walking around the filtering surface of filter by the flow of liquor coming from washtub, these bypass lines such as can be formed by molded filter suitably.

Therefore it can be seen, how the present invention realizes proposed target and object, provide a kind of washing machine, this washing machine is owing to being provided with one or more bypass lines of the bottom for the flow of liquor coming from washtub being directed to walking around filtering surface rhone on the filter, and allow to remove the washing/rinse products accumulated in bottom rhone, thus promote that these washing/rinse products are dissolved in washings, and make to comprise these and reentered in washtub by the water of the product dissolved.

Obtain effective utilization of washing agent and other washing/rinse products like this, make the consumption of washing/rinse products be optimized in this way, and therefore also reduce environmental pollution.

In addition, described one or more bypass line guarantees to remove the washing/rinse products accumulated in bottom rhone, thus avoids these washings gathered/rinse products blocking draining circuit, therefore decreases the danger of washing machine spilling water in this way.

In addition, the filter being provided with one or more bypass line according to the present invention can be used in known washing machine and replace traditional filter, therefore washing/the rinse products accumulated in bottom rhone can also be removed in known washing machine, to promote that these washing/rinse products are dissolved in washings, and make to comprise these and reentered in washtub by the water of the product dissolved.

Claims (15)

1. a washing machine (1), comprising:

-washtub (5);

-rhone (9), the internal fluid communication of described rhone (9) and described washtub (5) is also connected with draining circuit (10) fluid;

-filter (12), described filter (12) is connected to and maybe can be connected to described rhone (9) and be provided with for allowing liquid to pass through and the filtering surface (19) stoping the object with fixed dimension to pass through;

It is characterized in that:

Described filter (12) comprises at least one bypass line (21), and described bypass line (21) for being directed to the bottom of described rhone (9) with walking around described filtering surface (19) by the flow of liquor coming from described washtub (5).

2. washing machine according to claim 1 (1), wherein said bypass line (21) comprises the pipeline for making the inside of described washtub (5) be connected with the bottom flow of described rhone (9), and described pipeline has the side surface without perforation, thus the substantially all cleaning solutions entering described pipeline in described washtub (5) all flow in described rhone (9).

3. washing machine according to claim 1 and 2 (1), the shape and size of wherein said at least one bypass line (21) are passed through for allowing liquid, and stop the foreign body with fixed dimension to pass through.

4. washing machine according to claim 1 (1), wherein said at least one bypass line (21) if shape and size be designed to foreign body not by described filtering surface (19), so described foreign body can not pass through described bypass line (21).

5. washing machine according to claim 1 (1), being dimensioned to of wherein said at least one bypass line (21) makes the speed of the liquid leaving described at least one bypass line (21) be greater than the speed of the liquid entering described at least one bypass line (21).

6. washing machine according to claim 5 (1), the cross section of the outlet of wherein said at least one bypass line (21) is less than the cross section of the import of described bypass line (21), thus the speed leaving the liquid stream of described bypass line (21) is greater than the speed of the liquid stream entering described bypass line (21).

7. washing machine according to claim 6 (1), wherein when described filter (12) is positioned in described rhone (9), the import of described at least one bypass line (21) is positioned at above the bottom of described washtub (5), so as the import of at least one bypass line described (21) during revolvable cylinder (6) rotates by described revolvable cylinder (6) the water impact of moving.

8. washing machine according to claim 1 (1), wherein said filter (12) can be removed by from described rhone (9).

9. washing machine according to claim 8 (1), wherein said filter (12) comprises for making described filter be fixed to the coupling arrangement of described rhone (9) in the mode that can remove.

10. washing machine (1) according to claim 8 or claim 9, wherein said filter (12) comprises the grip element for allowing user easily can remove described filter (12) from described rhone (9).

11. 1 kinds of filters (12) for the draining circuit of washing machine (1), described filter comprises for allowing liquid to pass through and the filtering surface (19) stoping the object with fixed dimension to pass through, wherein, described filter (12) comprises at least one bypass line (21), described bypass line (21) for being directed to the opposite side of described filtering surface (19) with walking around described filtering surface (19) by the liquid stream coming from described filtering surface (19) side, it is characterized in that, being dimensioned to of described at least one bypass line (21) makes the speed of the liquid leaving described at least one bypass line (21) be greater than the speed of the liquid entering described at least one bypass line (21).

12. filters according to claim 11 (12), the shape and size of wherein said at least one bypass line (21) are passed through for allowing liquid, and stop the foreign body with fixed dimension to pass through.

13. filters (12) according to claim 11 or 12, wherein said at least one bypass line (21) if shape and size be designed to foreign body not by described filtering surface (19), so described foreign body can not pass through described bypass line (21).

14. filters (12) according to claim 11 or 12, the cross section of the outlet of wherein said at least one bypass line (21) is less than the cross section of the import of described bypass line (21), thus the speed leaving the liquid stream of described bypass line (21) is greater than the speed of the liquid stream entering described bypass line (21).

15. filters according to claim 13 (12), the cross section of the outlet of wherein said at least one bypass line (21) is less than the cross section of the import of described bypass line (21), thus the speed leaving the liquid stream of described bypass line (21) is greater than the speed of the liquid stream entering described bypass line (21).