• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Washing machine (1) comprising a housing with a lower lid (21), and a hydraulic washing system, in which at least a part of at least one hydraulic element selected between washing liquid conduits (42) and motor pumps (40, 41) is integrated in the inner cover (21). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2539412A1
    申请号:ES201331926
    申请日:2013-12-28
    公开日:2015-06-30
    发明作者:Ismael Gracia Bobed；Gerardo Martínez Pérez；Eduardo Recio Ferrer
    申请人:BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    DESCRIPTION
    Washing machine with lower lid. TECHNICAL FIELD OF THE INVENTION
     The present invention falls within the technical field of washing machines and, particularly, in the sector of hydraulic systems used in such machines. 5
    BACKGROUND OF THE INVENTION
     A modern washing machine comprises a hydraulic system with washing water lines and at least one motor pump to evacuate the water from the tank outwards through flexible tubes, once the clothes have been cleaned or rinsed. Many washing machines also incorporate an "aquastop" tray or loss water collection tray, 10 in the form of a lower lid that is fixed to the lower area of the frame. To the “aquastop” tray an electrical device for loss water detection is coupled with a float element, when the water losses exceed a certain level, it sends a signal to a shut-off valve arranged in the water supply tube that is connected to the external tap to close the water supply to the washing machine. fifteen
     The washing machines with this type of hydraulic systems suffer from a series of disadvantages when it comes to the use of the interior space, access to elements such as the motor pump used for the evacuation of water from the washing tank, the assembly of the pipes of the hydraulic system in the factory, and access to the motor pump at the time of repairs. twenty
    DESCRIPTION OF THE INVENTION
     The object of the present invention is to overcome the drawbacks of the state of the art detailed above, by means of a washing machine comprising a housing with a lower cover, a hydraulic washing system, in which at least a part of at least one element Hydraulic selected between washing liquid lines and motor pumps is integrated in the lower cover.
    Preferably, at least a part of at least one washing liquid conduit is integrated in the lower lid.
    Also preferably, at least one of the motor pumps arranged in the lower cover comprises a housing part that is at least partially integrated in the lower cover 30, which reduces the transmission of noise and vibrations generated by the motor pumps.
    The integration of the hydraulic elements in the lower cover allows to reduce assembly times of the hydraulic elements of the hydraulic washing system, such as motor pumps and tubes, since their positioning and interconnection are predetermined by the location of these hydraulic elements in the bottom cover. Likewise, a better use of the space available inside the washing machine is possible, whereby a greater compactness and / or an arrangement of the hydraulic elements can be chosen, in comparison with conventional washing machines. On the other hand, the invention also provides design flexibility, as the pump or pumps and water circulation ducts can be arranged conveniently, for example by reducing the risk of incorrect assembly or allowing easy and quick accessibility for assembly. / disassembly.
    At least part of the lower cover can be manufactured by injection molding separately from an upper part and a lower part, subsequently joined, preferably by welding, more preferably ultrasonic welding. Alternatively, the bottom cover
    It can be manufactured by blow injection.
    Preferably, according to the invention, the lower lid also comprises a loss water collection tray, which is preferably integrated with the lower lid and which can be formed in the lower lid during the molding process of the same lower lid. 5
    In one embodiment of the invention, the washing machine comprises a frame and the lower cover closes the lower part of the frame and, preferably, the lower cover is at least partially removable.
    This embodiment of the system makes access to the interior of the apparatus possible, in particular to the motor pumps, without the need to disassemble the oscillating group (tank, drum and propeller motor 10), which is especially useful in U-shaped frames (closed by the back), although you have to recline the device. To fix the cover to the frame, any detachable fastener can be used, such as clipping means ("press fit") and / or screwed. Preferably a tight fitting is provided when the bottom cover incorporates the aquastop tray. fifteen
    According to this embodiment, at least a part of the lower cover can be foldable, and the lower cover can be a single piece cover or a two-piece cover comprising an outer frame that is fixed to the lower part of the frame and a closing plate foldably coupled to the outer frame.
    When the lower cover is a single piece cover, it can comprise a hinge 20 by which it is articulated to the lower part of the frame of the washing machine or to an element disposed in the lower part of the frame.
    In turn, when the lower cover is a two-part cover, the outer frame is firmly attached to the bottom of the frame, while the closing plate is articulated to the outer frame or to another element arranged in the lower part of the washing machine , by means of a hinge, so that the closure plate is susceptible to vascular with respect to the outer frame.
    In either case, the hinge is preferably designed to provide freedom of abatement once a lock is released by moving the lid in a top-down direction. The blocking can be carried out, for example, by means of a series of grooves and fins in the hinge joint that cooperate in a tongue and groove manner.
    According to the invention, the hydraulic system of the washing machine may comprise at least one additional hydraulic element selected between washing water tanks and washing tanks. 35
    Thus, the hydraulic system may comprise at least one wash water tank having a minimum capacity of 50% and preferably 75%, of a total volume of water used in a wash cycle. In this regard, it should be taken into account that the capacity of such a wash water tank depends on the interior space available in the washing machine. For example, there are washing machines that have wash tanks with a capacity of approximately 50 liters of water and that use approximately 15 liters of water in a wash cycle. In this case, the capacity of the wash water tank is at least 7.5 liters, preferably 11.25 liters.
    The washing liquid line may be hydraulically connected to the washing water tank and / or the washing tank. Also, the motor pump can be hydraulically connected to the washing water tank and / or the washing tank.
    In one embodiment of the invention, the tank, one or more washing water tanks, one or more motor pumps and one or more washing liquid lines can be part of a washing liquid reuse circuit.
    BRIEF DESCRIPTION OF THE FIGURES
     Aspects and embodiments of the invention are described below on the basis of schematic drawings, in which
    Figure 1 is a front perspective view of a washing machine that integrates the present invention;
    Figure 2 is an exploded view of the housing of the washing machine illustrated in Figure 1;
    Figure 3 is a sectional view along the line A-A that appears in Figure 1, and shows a first embodiment of the invention;
    Figure 4 is another sectional view along the line A-A that appears in Figure 1; and shows a second embodiment of the invention;
    Figure 5 is a rear perspective detail view of a bottom cover provided with a wastewater collection tray, and on which the wash water tank is mounted; fifteen
    Figure 6 is a rear perspective view of the bottom cover illustrated in Figure 5, with the wastewater collection tray but without the wash water tank;
    Figure 7 is a rear perspective view corresponding to Figure 5, but with the wastewater collection tray in the open position;
    Figures 8A-8C are side elevation views show phases of the opening of the wastewater collection tray 20 of the lower cover illustrated in Figure 5;
    Figure 9 is a front perspective view of the bottom cover shown in Figure 5;
    Figure 10 is a top plan view of the bottom cover shown in Figure 5;
    Figure 11 is a sectional view along the line A-A that appears in Figure 10;
    Figure 12 is a sectional view on the line B-B that appears in Figure 10; 25
    Figure 13 is a block diagram showing a first embodiment of the hydraulic system of the washing machine according to the invention; Y
    Fig. 14 is a block diagram showing a second embodiment of the hydraulic system of the washing machine according to the invention.
    MODES OF CARRYING OUT THE INVENTION 30
     The washing machine 1 shown in Figures 1 and 2 comprises a housing formed by a U-frame 20 with a rear wall 25 connected to two side walls 27, a lower cover 21 mounted on the lower part of the frame 20, an upper cover 22 mounted on the top of the frame 20, as well as a front panel 23 with a mouth 23a and a control panel 24 on which the control knobs are mounted and allowing access to the detergent drawer 1, 35 mounted on the front part of the frame 20.
     The rear wall 25 of the frame 20 has an access recess 25a, through which the interior of the washing machine 1 which is closed by a removable rear closure cover 26 can be accessed.
     The bottom cover 21 comprises a central part in the form of a water collection tray 40
    waste 44. The upper surface of the wastewater collection tray 44 is inclined towards a sump 44a in which a conventional wastewater detection device 45 is mounted.
     The washing machine is provided with a washing water tank 30 comprising two opposite side parts and joined by a rear part. 5
     In the embodiment of the washing machine 1 shown in Figure 2, two washing water reservoir holders 31 are provided in the lower part of the side walls 27 of the housing 20 which serve as support for the opposite side parts of the tank of washing water 30, which is mounted on top of the lower cover 21 (see figure 3), while in the embodiment of the washing machine 1 of figure 4 the washing water tank 30 is 10 mounted on the surface top of the bottom cover 21 which in turn is screwed to the bottom of the housing 20.
     As can be seen in Figures 3 and 4, inside the washing machine 1 there is a conventional oscillating group comprising a washing tank 2 in which a washing drum 3 rotates comprising a driven pulley 6 connected to a propeller motor 15 by means of a transmission belt 5. The propeller motor 4 is disposed between the side parts and the rear part of the housing 20.
     The washing tank 2 is connected to the housing 20 superiorly by means of two support springs 9 anchored in internal wings provided on opposite upper sides of the side walls of the housing 20, and inferiorly through shock absorbers 7 articulated to 20 respective shock absorber supports 32 The supports 32 are mounted on reinforcements 32a attached to respective side parts of the wash water tank 30.
     The lower cover 21 comprises an outer frame 21a screwed to the bottom of the frame 20 and a closure plate 21b that seals the inner hollow of the outer frame 21a and removably fixed to the outer frame 21a by removable fixing means. 25
     In the embodiment illustrated in Figure 3, the lower cover 21 is articulated at its front to the wash water tank 30 by means of a hinge 33, while in the embodiment illustrated in Figure 4 it is screwed to a strip of the inner periphery of the outer frame 21a.
     Figures 5, 6 and 7 show a practical embodiment of the invention in which the lower cover 30 comprises an outer frame 21a, made for example of sheet metal, above which a wash water tank 30 is mounted, and a folding closing plate 21b, made for example of plastic material, incorporating a wastewater collection tray 44 with a sump 44a of the type described above with reference to Figure 2, and in which the water detector device is arranged of losses (not shown in Figures 1, 35 314), also as described above with reference to Figure 2.
     The wash water tank 30 is mounted on a support arranged at the bottom as shown schematically in Figure 3.
     In the closing plate 21b, a first motor pump 40 is provided for pumping washing liquid from the washing water tank 30 into the detergent tank 40 (see figure 1), as well as a second motor pump 41 intended to drain water from the wash tank 2.
     The closing plate 21b is articulated at its front to the washing water tank 30 by means of a hinge 33 comprising two axes 33a that emerge horizontally from the respective internal sides of the two lateral parts of the washing water tank 30, and 45 two turning bush 33b at the free ends of respective vertical projections 33c emerging from the upper surface of the closure plate 21b. Hinge 33 provides freedom
    of release once a lock is released when the flip plate 21b moves from the top down. The locking is carried out by means of a series of grooves and complementary fins on the hinge shafts 33a and the swivel bushing 33b that form the hinge joint 33 and cooperate in a tongue and groove manner. The folding of the folding closing plate 21b makes access to the interior of the washing machine possible, in particular to the motor pumps 40, 41, without the need to disassemble the tank 2 and the drum 3.
     On its rear part, the inner cover 21b is connected to the lower part of the frame by means of a screwed fastener 34 comprising a first lug 21c horizontally emerging from the rear edge of the closing plate 21b and a second lug 21d horizontally emerging from the rear edge of the outer frame 21a in a complementary position to the first lug 21c. The first lug 21c has a vertical hole while the second lug 21d has an inner thread aligned with the vertical hole, such that a fixing screw 34a that passes through the vertical hole of the first lug 21c can be screwed into the inner thread of the second lug 21d. In order to fix the closing plate 21b to the outer frame 21a, a conventional clipping fixation 37 is also provided which comprises, for example, vertically emerging lugs on sides of the surface of the closing plate 21b which elastically fit into retaining bushings. Complementary to the outer frame 21a.
     For fixing to the frame, the outer frame 21a comprises, on the one hand, clip fasteners 35 in the form of lugs which, for example, elastically fit into complementary openings 20 (not shown in the figures) in the lower part of the frame. On the other hand, the outer frame 21a has, in opposite lateral stripes, holes 36 whereby fixing screws (not shown in the figures) pass through which are threaded in complementary holes provided in the lower part of the frame (not shown in the figures) .
     Figures 8A-8C show the phases of the opening of the closing plate 21b with respect to the outer frame 21a. Thus, when the closing plate 21b is fixed to the outer frame 21a as shown in Figure 8A, the fixing screw 34a is unscrewed and then the closing plate 21b moves down in a horizontal position overcoming the resistance offered by clamping 37 described above with reference to Figures 5 to 7, until reaching the position shown in Figure 8B. Next, the closing plate 21b rotates on the hinge 33 and is lowered with respect to the outer frame 21a, as shown in Figure 8C.
     Figures 9 to 12 show in more detail some of the characteristics of the closure plate 21b described above with reference to Figures 5 to 7 and 8A to 8C.
     As can be seen, the fluid inlet connection 46 of the first motor pump 40 is connected to a connector 30a provided on the inner side of one of the side parts of the washing water reservoir 30 by means of a washing water outlet pipe 48 which extends above the upper surface of the closure plate 21b while the output of the first pump 40 is connected to a first outlet connection 47 by means of a first washing liquid conduit 42 integrated in the closure plate 21b . The first outlet connection connection 47 is connected to the detergent drawer by means of a feedback tube 50 40 (see figures 12 and 13).
     The inlet connection 46 of the second motor pump 41 is connected to the washing tank 2 by means of a drain pipe 49, while the outlet of the second motor pump 41 is connected to a second washing liquid conduit 42 having a second connection of outlet 47 connected to an evacuation tube 51 (see figures 12 and 13) that 45 communicates with the drain of the washing machine 1.
     In Fig. 12 it can be seen that the first washing liquid conduit 42 is formed in the same body of the closing plate 21b which can be achieved, for example, when the closing plate 21b is molded. Each of the pumps 40, 41 comprises a housing
    43 partially integrated in the closure plate 21a. The washing liquid enters the interior of the housing 43 through its inlet connection 46 and is expelled under pressure by the outlet of the motor pump 40, 41 into the conduit of the washing liquid 42.
      This structure is equally applicable to the second washing liquid duct.
     Figure 13 shows a first embodiment of the hydraulic system of the washing machine according to the present invention.
     According to this embodiment, fresh water is supplied to the system by introducing it into the detergent drawer by conducting it through a water supply tube 52 in the washing tank 2, and from there, through the transfer conduit 53, to the reservoir of wash water 30 until there is enough water in the wash tank 2 and the wash water tank 30 is full 10, after which the supply of fresh water to the detergent tank 10 is closed and the valve is closed 55 three-way disposed at the outlet of the washing tank 2. When, after a washing cycle, it is necessary to partially or completely evacuate the dirty washing liquid from the tank 2, the three-way valve 55 is opened so that the dirty washing liquid can flow through the second washing water line 42 to the drain pipe 49, and the second 15 motor pump 41 is operated to pump the dirty washing liquid through the drain pipe 51 and evacuate it through the drain (no we shown in the figures) of the washing machine 1 and the three-way valve 55 is closed.
     If, after the evacuation of the washing liquid, a new washing cycle that requires the addition of washing water continues, the first pump 40 is operated to pump wash water 20 from the washing water tank 30 through the water outlet pipe wash 48, the first wash liquid conduit 42 and the first tube 50 to the detergent drawer 10 from which it passes through the water supply tube 52 to the wash tub 2. This can be done both in the case of that, after a washing cycle, all the washing water used or only part of it has been evacuated from the washing tank 2. 25
     Also, instead of evacuating the wash water from the washing tank 2 through the drain pipe 49, it is possible to choose, when it is desired to reuse part or all of the used washing water evacuated from the washing tank 2 , such as soaking water, this used washing water can be taken to the washing tank 30 by closing the access to the drain pipe 49 by the valve 55 and opening the access to the transfer tube 53, so that the washing water used arrives at the washing water tank 30 and, from there, can be carried, by the action of the first pump 41, through the washing water outlet tube 48, the first washing liquid conduit 42 and the tube of feedback 50 to the detergent tray 10, from which it is recirculated, possibly mixed with more strawberry water and / or more detergent, to the washing tank 2 through water supply tube 52. 35
     In this way, the tank 2, the washing water tank 30, the first pump 40 and the washing liquid conduit 42 form part of a recirculation circuit of washing liquid.
     In the second embodiment of the hydraulic system of the washing machine according to the present invention, shown in Figure 14, it differs from the first embodiment illustrated in Figure 13 in that the washing tank 2 is not in hydraulic communication with the wash water tank 30, so that the valve 55 disposed at the outlet of the wash tank 2 is only two ways.
     As in the first embodiment of the hydraulic system, when, after a washing cycle, it is necessary to partially or completely evacuate the dirty washing liquid from the tank 2, 45 this two-way 55 valve opens so that the liquid of dirty washing can flow through the second washing water line 42 into the drain pipe 49, and the second motor pump 41 is operated to pump the dirty washing liquid through the drain pipe 51 and evacuate it
    down the drain (not shown in the figures) of the washing machine 1 and the two-way valve 55 is closed.
     On the other hand, fresh water can be supplied to the system by introducing it into the detergent drawer by conducting it through the water supply tube 52 in the washing tank 2, and / or to the washing water tank 30. If after evacuation of the washing liquid, a new washing cycle that requires the addition of washing water continues, the first pump 40 is operated to pump wash water from the washing water tank 30 through the washing water outlet tube 48, the first washing liquid conduit 42 and the first tube 50 to the detergent bowl 10 from which it passes through the water supply tube 52 to the washing tank 2. 10
    Reference signs:

    1 washing machine
    2 Washing Cuba
    3 Rotating drum 5
    4 Drive motor
    5 Drive belt
    6 Drive pulley
    7 Shock absorber
    9 Pier 10
    10 Detergent bucket
    20 Frame
    21 Bottom cover
    21st outer frame
    21b Locking plate 15
    21c first lug
    21d second lug
    22 Top cover
    23 Front panel
    24 Control panel 20
    25 rear wall
    25th access recess
    26 Rear closure cover
    27 Side wall
    30 Wash water tank 25
    30a Washing water tank connector
    31 Wash tank holder
    32 Shock absorber bracket
    32nd Reinforcement
    33 Folding lid tank hinge 30
    33a hinge shaft
    33b turning bushing
    34 Screwed fixing of the inner cover to the outer frame
    34a fixing screw
    35 Clipping of the outer frame to the frame
    36 Hole for screwing the outer frame to the frame
    37 Clipping the inner cover to the outer frame 5
    40 First motor pump
    41 Second motor pump
    42 Washing fluid duct
    43 Motor pump housing
    44 Loss water collection tray 10
    44th Sump
    45 Loss water detector device
    46 Motor pump input connection
    47 Motor pump outlet connection
    48 Washing water outlet pipe 15
    49 Tank drain pipe
    50 Feedback Tube
    51 Evacuation tube
    52 Water supply tube
    53 Transfer tube 20
    54 Additional water supply tube
    55 Valve
    权利要求:
    Claims (13)
    [1]
    1. Washing machine (1) comprising a housing with a lower cover (21), and a hydraulic washing system, characterized in that at least a part of at least one hydraulic element selected between washing liquid ducts (42) and motor pumps (40, 41) are integrated in the lower cover (21). 5
    [2]
    2. Washing machine according to claim 1, characterized in that at least a part of a washing liquid conduit (42) is integrated in the lower cover (21).
    [3]
    3. Washing machine (1) according to claim 1 or 2, characterized in that a motor pump (40.41) disposed in the lower cover (21) comprises a housing part (43) that is at least partially integrated in the lower cover (twenty-one). 10
    [4]
    4. Washing machine (1) according to one of the preceding claims, characterized in that the lower cover (21) comprises a waste water collection tray (44).
    [5]
    5. Washing machine (1) according to claim 4, characterized in that the loss water collection tray (44) is integrated with the lower cover (21).
    [6]
    6. Washing machine (1) according to one of the preceding claims, characterized in that it comprises a frame (20) and the lower cover (21) closes the lower part of the frame (20).
    [7]
    7. Washing machine (1) according to one of the preceding claims, characterized in that the lower cover (21) is at least partially removable.
    [8]
    8. Washing machine (1) according to one of the preceding claims, characterized in that at least a part of the lower lid (21) is collapsible. twenty
    [ 9]
     9. Washing machine (1) according to one of the preceding claims, characterized in that the hydraulic system comprises at least one additional hydraulic element selected between washing water tanks (30) disposed in the lower lid (21) and washing tanks ( 2).
    [10]
    10. Washing machine (1) according to claim 9, characterized in that it comprises at least one washing water tank (30) having a minimum capacity of 50%, preferably 75%, of a total volume of water used in a wash cycle
    [11]
    11. Washing machine (1) according to claim 9 or 10, characterized in that the washing liquid line (42) is hydraulically connected to at least one hydraulic element selected between the washing water tank (30) and the water tank wash (2).
    [12]
    12. Washing machine (1) according to claim 9, 10 or 11, characterized in that the motor pump (40, 41) is hydraulically connected to at least one hydraulic element selected between the washing water tank (30) and the tank wash (2).
    [13]
    13. Washing machine (1) according to one of claims 9 to 12, characterized in that at least one hydraulic element selected from the tank (2), at least one tank of washing water (30), at least one motor pump (40 ) and at least one washing liquid conduit (42) 35 forms part of a washing liquid reuse circuit.
    类似技术:
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    同族专利:
    公开号 | 公开日
    TR201810767T4|2018-08-27|
    ES2684406T3|2018-10-02|
    ES2539412B1|2016-04-21|
    EP2889425B1|2018-06-13|
    PL2889425T3|2018-11-30|
    EP2889425A1|2015-07-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES1021639U|1991-06-13|1993-01-01|Zanussi Elettrodomestici A.P.A.|Dishwasher control panel. |
    ES2129160T3|1994-07-29|1999-06-01|Sera Srl|CLOSURE PANEL EQUIPPED FOR APPLIANCES.|
    WO2003071021A1|2002-02-20|2003-08-28|Plasticos Mondragon S.A.U.|Moulded cover for electrical household appliances comprising a built-in electronic control system|
    WO2004055254A1|2002-12-17|2004-07-01|Incaelec, S.L.|Washing machine comprising lower drawer|
    KR0131683Y1|1993-07-30|1999-04-15|김광호|Anti-noise device of a washing machine|
    WO2006028353A2|2004-09-10|2006-03-16|Lg Electronics Inc.|Washing apparatus|
    CN101012616A|2007-01-26|2007-08-08|许继海|Fountain barrel washing machine having self-contained water tank|
    RU2517753C2|2008-12-31|2014-05-27|ЭлДжи ЭЛЕКТРОНИКС ИНК.|Laundry treatment machine|
    ES2644000T3|2010-10-28|2017-11-27|Candy S.P.A.|Method and device for washing laundry|DE202017103815U1|2017-06-27|2017-08-24|Polytec Plastics Germany Gmbh & Co. Kg|Washing machine, tumble dryer or dishwasher|
    DE102020209565A1|2020-07-29|2022-02-03|BSH Hausgeräte GmbH|Laundry care device with a washing medium tank|
    法律状态:
    2016-04-21| FG2A| Definitive protection|Ref document number: 2539412 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160421 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201331926A|ES2539412B1|2013-12-28|2013-12-28|Washing machine with lower cover|ES201331926A| ES2539412B1|2013-12-28|2013-12-28|Washing machine with lower cover|
    PL14199543T| PL2889425T3|2013-12-28|2014-12-22|Washing machine with bottom cover|
    EP14199543.1A| EP2889425B1|2013-12-28|2014-12-22|Washing machine with bottom cover|
    ES14199543.1T| ES2684406T3|2013-12-28|2014-12-22|Washing machine with lower cover|
    TR2018/10767T| TR201810767T4|2013-12-28|2014-12-22|Washing machine with base cover.|
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