ES2364599T3

ES2364599T3 - LAVAR APPLIANCES APPARATUS.

Info

Publication number: ES2364599T3
Application number: ES08156765T
Authority: ES
Inventors: Ivan Monticco; Andrea Mazzon; Matteo Del Puppo
Original assignee: Electrolux Home Products Corp NV
Current assignee: Electrolux Home Products Corp NV
Priority date: 2008-05-22
Filing date: 2008-05-22
Publication date: 2011-09-07
Anticipated expiration: 2028-05-22
Also published as: ATE504686T1; DE602008006043D1; WO2009141070A1; EP2123821B1; PL2123821T3; EP2123821A1

Abstract

An electric household appliance has a first pipe (8) for feeding wash fluid from a wash tub (3), for washing articles, to a drain (7); a filtering device (11) fitted along the first pipe (8); a second pipe (16) parallel to the first pipe (8) and having a retaining device (18) for retaining foreign bodies (12) contained in the wash fluid; and a reversible pump (9) fitted along the first pipe (8), between the filtering device (11) and the drain (7), to feed the wash fluid selectively from the wash tub (3) to the drain (7), or successively through the filtering device (11) and the retaining device (18).

Description

La presente invención se refiere a un aparato electrodoméstico de lavar, en particular un lavavajillas o una lavadora. The present invention relates to a household appliance for washing, in particular a dishwasher or a washing machine.

En la industria de aparatos electrodomésticos, se conoce un aparato que comprende una cubeta de lavar para lavar artículos; un tubo hidráulico para conducir un fluido de lavar desde la cubeta de lavar hasta un drenaje; un dispositivo de filtración instalado a lo largo del tubo hidráulico para eliminar cuerpos extraños del fluido de lavar; y una bomba de alimentación instalada a lo largo del tubo hidráulico, entre el dispositivo de filtración y el drenaje. In the home appliance industry, an apparatus is known that comprises a wash basin for washing articles; a hydraulic tube for conducting a wash fluid from the wash basin to a drain; a filtration device installed along the hydraulic tube to remove foreign bodies from the washing fluid; and a feed pump installed along the hydraulic tube, between the filtration device and the drain.

Los aparatos electrodomésticos de lavar conocidos del tipo descrito anteriormente tienen varios inconvenientes, principalmente debido a que los dispositivos de filtración utilizados normalmente se obstruyen rápidamente y de esta manera requieren limpieza frecuencia y/o sustitución. Known household appliances of the type described above have several drawbacks, mainly because the filtration devices normally used are clogged quickly and thus require frequency cleaning and / or replacement.

El documento EP-A-1 688 530 describe una máquina lavadora de ropa que comprende una cubeta de lavar y un tubo de drenaje previsto debajo de la cubeta y que la conecta con la cámara de la bomba de drenaje; el tubo de drenaje comprende una longitud central y una longitud final orientada horizontalmente hacia la cámara de la bomba de drenaje. La máquina lavadora comprende un propulsor hidráulico previsto dentro de la cámara de la bomba de drenaje. En correspondencia con la longitud final y debajo de la misma está dispuesta una cámara de filtración adicional conectada a la longitud final a través de una abertura horizontal prevista en la pared inferior de la longitud final. La abertura horizontal está situada al comienzo de la longitud final, como se ve en la dirección de flujo de la solución de lavar que está siendo descargada desde la cubeta. De una manera preferida, la cámara de filtración auxiliar está provista con una pared inferior conectada a la longitud central a través de una unión suavemente curvada que es cóncava hacia el interior de la longitud central. Document EP-A-1 688 530 describes a laundry machine comprising a washing bucket and a drain tube provided below the bucket and connecting it to the drain pump chamber; The drain tube comprises a central length and a final length oriented horizontally towards the drain pump chamber. The washing machine comprises a hydraulic propeller provided inside the drain pump chamber. Corresponding to the final length and beneath it is an additional filtration chamber connected to the final length through a horizontal opening provided in the bottom wall of the final length. The horizontal opening is located at the beginning of the final length, as seen in the flow direction of the washing solution that is being discharged from the bucket. In a preferred manner, the auxiliary filtration chamber is provided with a bottom wall connected to the central length through a gently curved joint that is concave inward of the central length.

Un objeto de la presente invención es proporcionar un aparato electrodoméstico de lavar diseñado para eliminar los inconvenientes mencionados anteriormente, y que es económico y fácil de producir. An object of the present invention is to provide an electric household appliance designed to eliminate the aforementioned inconveniences, and which is economical and easy to produce.

De acuerdo con la presente invención, se proporciona un aparato electrodoméstico de lavar de acuerdo con las reivindicaciones que se acompañan. In accordance with the present invention, an electric household appliance is provided in accordance with the accompanying claims.

Una forma de realización no limitativa de la presente invención se describirá a modo de ejemplo con referencia a los dibujos que se acompañan, en los que: A non-limiting embodiment of the present invention will be described by way of example with reference to the accompanying drawings, in which:

Las figuras 1 y 2 muestran de forma esquemática una forma de realización preferida del aparato electrodoméstico de acuerdo con la presente invención. Figures 1 and 2 schematically show a preferred embodiment of the home appliance according to the present invention.

Las figuras 3 y 4 muestran, de forma esquemática, el funcionamiento del aparato de las figuras 1 y 2. Figures 3 and 4 show, schematically, the operation of the apparatus of Figures 1 and 2.

El número 1 en las figuras 1 y 2 indica, en conjunto, un aparato electrodoméstico para lavar artículos (no mostrados), y que, en el ejemplo mostrado, se define por una máquina lavadora que comprende una carcasa 2 configurada sustancialmente en forma de paralelepípedo; y una cubeta de lavar 3 sustancialmente cilíndrica, que tiene un eje longitudinal 4, está montada dentro de la carcasa 2, y aloja un tambor 5 sustancialmente cilíndrico conectado a la cubeta 3 y giratorio, con respecto a la cubeta 3, alrededor del eje 4 por un dispositivo de accionamiento conocido no mostrado. The number 1 in Figures 1 and 2 indicates, as a whole, an household appliance for washing items (not shown), and which, in the example shown, is defined by a washing machine comprising a housing 2 configured substantially in the form of a parallelepiped ; and a substantially cylindrical wash basin 3, which has a longitudinal axis 4, is mounted inside the housing 2, and houses a substantially cylindrical drum 5 connected to the bucket 3 and rotatable, with respect to the bucket 3, around the axis 4 by a known drive device not shown.

La máquina lavadora 1 comprende también un circuito de drenaje 6 para conducir un fluido de lavar, normalmente agua y detergente, desde la cubeta 3 hasta un drenaje 7 conectado a la red de distribución de agua. The washing machine 1 also comprises a drain circuit 6 for conducting a washing fluid, usually water and detergent, from the bucket 3 to a drain 7 connected to the water distribution network.

El circuito 6 comprende un primer tubo hidráulico 8 que se extiende entre la cubeta 3 y el drenaje 7; una bomba de alimentación reversible 9 localizada a lo largo del tubo 8 y que tiene un propulsor 10 montado para girar en dos sentidos opuestos; y un primer dispositivo de filtración 11 instalado a lo largo del tubo 8, entre la cubeta 3 y la bomba 9, para eliminar los cuerpos extraños 12 del fluido de lavar drenado a lo largo del circuito 6. The circuit 6 comprises a first hydraulic tube 8 that extends between the tank 3 and the drain 7; a reversible feed pump 9 located along the tube 8 and having a propeller 10 mounted to rotate in two opposite directions; and a first filtration device 11 installed along the tube 8, between the bucket 3 and the pump 9, to remove foreign bodies 12 from the drained washing fluid along the circuit 6.

El tubo 8 está equipado también con un dispositivo de válvula 13 que comprende un miembro de conexión / desconexión 14, que está montado dentro del tubo 8, entre la cubeta 3 y el dispositivo de filtración 11, y que está montado para girar alrededor de un eje de articulación 15, con respecto al tubo 8 y, como se explica en detalle a continuación, entre una posición abierta (figura 3) y una posición cerrada (figura 4) que abre y cierra el tubo 8, respectivamente. The tube 8 is also equipped with a valve device 13 comprising a connection / disconnection member 14, which is mounted inside the tube 8, between the cuvette 3 and the filtration device 11, and which is mounted to rotate around a articulation shaft 15, with respect to the tube 8 and, as explained in detail below, between an open position (figure 3) and a closed position (figure 4) that opens and closes the tube 8, respectively.

El circuito 6 comprende también un segundo tubo hidráulico 16, que está montado en paralelo a una porción 17 del dispositivo 11 de alojamiento del tubo 8, está localizado debajo de la porción 17 y aloja un segundo dispositivo de filtración 18. En el ejemplo mostrado, el dispositivo de filtración 11 está diseñado para eliminar los cuerpos extraños 12 más pequeños que el dispositivo de filtración 18. The circuit 6 also comprises a second hydraulic tube 16, which is mounted in parallel to a portion 17 of the housing device 11 of the tube 8, is located below the portion 17 and houses a second filtration device 18. In the example shown, The filtration device 11 is designed to remove foreign bodies 12 smaller than the filtration device 18.

En una variación no mostrada, los dispositivos de filtración 11, 18 son sustituidos por un solo dispositivo de filtración de la misma capacidad de filtración a lo largo tanto del tubo 16 como de la porción 17. In a variation not shown, the filtration devices 11, 18 are replaced by a single filtration device of the same filtration capacity along both the tube 16 and the portion 17.

El tubo 16 y la porción 17 están alojados dentro de un cajón 19 montado en la carcasa 2 para deslizarse hacia y desde una posición extraída, en la que el cajón 19 se proyecta fuera de la carcasa 2 para permitir la limpieza de los dispositivos de filtración 11, 18, en particular el dispositivo de filtración 18. The tube 16 and the portion 17 are housed inside a drawer 19 mounted in the housing 2 to slide to and from an extracted position, in which the drawer 19 is projected out of the housing 2 to allow cleaning of the filtration devices 11, 18, in particular the filtration device 18.

5 En uso real, cuando se realiza el drenaje del fluido de lavar normalmente desde la cubeta 3 (figura 3), se acciona la bomba 9 (en sentido horario en la figura 3) para conducir el fluido de lavar a lo largo de los tubos 8 y 16 hasta el drenaje 7 y fuera de la máquina lavadora 1 en una dirección dada 20; el miembro de conexión / desconexión 14 es girado (en sentido contrario a las agujas del reloj en la figura 3) por el fluido de lavar desde la posición cerrada hasta la posición abierta; los cuerpos extraños grandes 12, tales como monedas y/o botones, caen por gravedad dentro 5 In actual use, when draining the washing fluid normally from the bucket 3 (figure 3), the pump 9 (clockwise in figure 3) is operated to drive the washing fluid along the tubes 8 and 16 to drain 7 and out of the washing machine 1 in a given direction 20; the connecting / disconnecting member 14 is rotated (counterclockwise in Figure 3) by the washing fluid from the closed position to the open position; 12 large foreign bodies, such as coins and / or buttons, fall by gravity inside

10 del tubo 16 son retenidos por el dispositivo de filtración 18; los cuerpos extraños pequeños 12, tales como hebras y/o pelusilla, son retenidos por los dispositivos de filtración 11, 18. 10 of the tube 16 are retained by the filtration device 18; small foreign bodies 12, such as strands and / or fluff, are retained by the filtration devices 11, 18.

Cuando se completa el drenaje normal (figura 4), el propulsor 10 es girado en el sentido opuesto al anterior (en sentido contrario a las agujas del reloj en la figura 4) para conducir el fluido de lavar a través del dispositivo de filtración 11 en el sentido opuesto 1 al sentido 20; el miembro de conexión / desconexión 14 es girar (en sentido When normal drainage is completed (Figure 4), the impeller 10 is turned in the opposite direction to the previous one (counterclockwise in Figure 4) to conduct the washing fluid through the filtration device 11 in the opposite direction 1 to the sense 20; the connecting / disconnecting member 14 is turning (in the direction

15 horario en la figura 4) por el fluido de lavar desde la posición abierta hasta la posición cerrada; y el fluido de lavar es conducido sucesivamente a lo largo de la porción 17 y el tubo 16, es decir, sucesivamente a través de los dispositivos de filtración 11 y 18. 15 schedule in figure 4) by the washing fluid from the open position to the closed position; and the washing fluid is conducted successively along the portion 17 and the tube 16, that is, successively through the filtration devices 11 and 18.

Mediante el reciclado del fluido de lavar a lo largo de la porción 17 en el sentido 21. By recycling the washing fluid along portion 17 in direction 21.

los cuerpos extraños 12 son conducidos desde el dispositivo de filtración 11 hasta el tubo 16 y son 20 retenidos por el dispositivo de filtración 18; foreign bodies 12 are conducted from the filtration device 11 to the tube 16 and are retained by the filtration device 18;

la bomba 9 suministra fluido de lavar que no contiene sustancialmente cuerpos extraños 12; the pump 9 supplies washing fluid that does not substantially contain foreign bodies 12;

se previene que se obstruyan la bomba 9 y el dispositivo de filtración 11; y the pump 9 and the filtration device 11 are prevented from clogging; Y

se pueden realizar numerosos ciclos de lavar y ciclos de drenaje de la cubeta 3 antes de tener que extraer el cajón 19 desde la carcasa 2 para limpiarlo, en particular el dispositivo de filtración 18. numerous washing cycles and drainage cycles of the bucket 3 can be performed before having to remove the drawer 19 from the housing 2 to clean it, in particular the filtration device 18.

Claims

1. An appliance for washing household appliances, in particular a dishwasher or washing machine, the apparatus comprising a washing tray (3) for washing articles; a first tube (8) for conducting a washing fluid from the washing tray

(3) (3): hasta un drenaje (7), por el que se drena el fluido de lavar desde el aparato; un primer dispositivo de filtración to a drain (7), whereby the washing fluid is drained from the apparatus; a first filtration device

(11)(eleven): instalado a lo largo del primer tubo (8); y una bomba (9) instalada a lo largo del primer tubo (8), entre el primer dispositivo de filtración (11) y el drenaje (7); y que se caracteriza porque comprende, además, un segundo tubo (16) paralelo al primer tubo (8) y equipado con un dispositivo de retención (18) para retener cuerpos extraños (12) contenidos en el fluido de lavar; la bomba (9) que funciona de forma reversible para conducir fluido de lavar de forma selectiva desde la cubeta de lavar (3) hasta el drenaje (7) o sucesivamente a través del primer dispositivo de filtración (11) y el dispositivo de retención (18). installed along the first tube (8); and a pump (9) installed along the first tube (8), between the first filtration device (11) and the drain (7); and characterized in that it further comprises a second tube (16) parallel to the first tube (8) and equipped with a retention device (18) for retaining foreign bodies (12) contained in the washing fluid; the pump (9) that works reversibly to conduct wash fluid selectively from the wash basin (3) to the drain (7) or successively through the first filtration device (11) and the retention device ( 18).

2. An household appliance according to claim 1 and further comprising a valve device (13) installed along the first tube (8), between the wash basin (3) and the first filtration device (11), and mobile between an open position and a closed position that opens and closes the first tube (8), respectively.

3. An electrical appliance according to claim 2, wherein the valve device (13) comprises a mobile return valve from a closed position to the position opened by the washing fluid flowing from the washing tank ( 3) to the drain (7), and from the open position to the closed position by the washing fluid that circulates successively through the first filtration device (11) and the retention device (18).

4. An appliance according to claim 2 or 3, wherein the valve device (13) comprises a connecting / disconnecting member (14) installed inside the first tube (8) and movable between said open position and said position closed by the washing fluid.

5. An appliance according to any one of the preceding claims, wherein the retention device (18) comprises a second filtration device (18) housed in the second tube (16).

6. An appliance according to claim 5, wherein the first filtration device (11) is designed to retain foreign bodies (12) smaller than the second filtration device (18).

7. An electrical appliance according to any one of the preceding claims, and also comprising a housing (2) housing the wash basin (3), the first tube (8), and the second tube (16); and a drawer (19) that is removed from the housing (2) and that houses at least the retention device (18).

8. An appliance according to claim 7, wherein the drawer (19) houses the first filtration device (11) and the retention device (18).

9. An appliance according to any one of the preceding claims, wherein the pump (9) comprises a propeller (10) that rotates in a first direction of rotation to conduct washing fluid through the first filter device (11) in a given first direction (20), and in a second direction of rotation, opposite the first direction of rotation, to conduct washing fluid through the first filtration device (11) in a second opposite direction (21) to the first sense (20).

10. An appliance according to any one of the preceding claims, wherein the pump (9) comprises a propeller (10) that rotates in a first direction of rotation to conduct washing fluid in parallel along said first and said second tube (8, 16), and in a second direction of rotation, opposite the first direction of rotation, to conduct washing fluid successively through the first filtration device

(11) and the retention device (18).

11. An appliance according to any one of the preceding claims, wherein the second tube (16) is mounted in parallel to a portion (17) of the first tube (8) that houses the first filtration device (11 ).