CN102695445B - Comprise the dish-washing machine of micro-filter - Google Patents

Abstract

Dish-washing machine of the present invention (1) comprising: the cask washing (2) wherein placing article to be cleaned; Container (3), it is arranged in cask washing (2) bottom and is collected in the water of cask washing (2) in cleaning process at container (3); Micro-filter (5), it is positioned at container (3) middle part, and it allows to transmit the water being delivered to container (3) from cask washing (2), but the residue that its maintenance is carried by water; Circulating pump (4), it makes the water of savings in container (3) turn back to cask washing (2); Suction hose (7), circulating pump (4) is led in its one end, and the other end leads to container (3); Inlet hole (9), the end leading to the suction hose (7) of container (3) is installed to inlet hole (9), and it can be delivered to suction hose (7) to the unlimited water of savings in container (3) that makes of container (3) wall towards micro-filter (5); And supply hose (6), its one end is connected to running water pipe and its other end leads to container (3).

Description

Dishwashers including microfilters

technical field

The invention relates to a dishwasher comprising a microfilter.

Background technique

Microfilters used in dishwashers become clogged after continuous washing due to residues adhering to them. After a period of time, this reduces the performance of the dishwasher and makes the filtration system malfunction. To prevent this, the user is required to remove and clean the microfilter at certain intervals. But many users never clean the microfilter or fail to properly put it back in place after cleaning. The microfilter has not been cleaned or it has been assembled incorrectly resulting in reduced cleaning performance. Therefore, in the prior art, various schemes have been developed to make the microfilter self-cleaning.

In the prior art, the cleaning container is located at the lower part of the washing tub, and the water in the washing tub is collected in the cleaning container during the cleaning process, and a microfilter is placed in the middle of the cleaning container. The circulation pump is connected to the cleaning container by a suction hose, and the circulation pump is used to return the water collected in the cleaning container to the washing bucket. One end of the suction hose leads to the pump, and the other end leads to the cleaning container. In addition, a supply hose is connected which introduces water into the tub from a water pipe, one end of the supply hose is connected to water mains and the other end of the supply hose is opened to the washing container.

Since the circulation pump sucks the water in the cleaning container through the suction hose, the residues entering the microfilter accumulate more inside the cleaning container on the side of its wall where the suction hose is connected than on the other side. Water introduced from the mains by the supply hose does not provide cleaning of residues adhering to this wall, but instead causes them to stick to the microfilter wall.

Contents of the invention

The object of the present invention is to realize a dishwasher comprising a microfilter which can be cleaned without user intervention.

The dishwasher realized in order to achieve the object of the present invention is set forth in the first claim and its corresponding claims, which dishwasher comprises a control unit which, before or after any of the washing steps, makes insufficient washing and washing The water is directed through the water inlet hole to the microfilter and then discharged by the circulation pump.

A small amount of water is sufficient for the microfilter cleaning process. Sufficient to fill the container up to the upper height of the microfilter. The stated amounts are proportional to the size and capacity of the dishwasher. Currently, in domestic dishwashers, the amount is between 0.5 and 1.5 L.

In one embodiment of the invention, cleaning of the microfilter is achieved after the main cleaning step. The water introduced from the water mains is discharged after being passed through the microfilter.

In another embodiment of the invention, cleaning of the microfilter is achieved prior to the main cleaning step.

In another embodiment of the invention, cleaning of the microfilter is achieved prior to the washing step.

In another embodiment of the invention, the circulation pump is simultaneously operated while the microfilter is being cleaned.

In another embodiment of the invention, the water inlet opening to which the supply hose is connected is in the form of a nozzle. Thus, by increasing the velocity of the water from the supply hose due to the mains pressure, and thus passing the water hitting the outer surface of the microfilter faster, residues accumulated on the other side of the same surface are removed from the microfilter .

By means of the invention, it is possible to clean residues accumulated on the inner surface of the microfilter with the flow of water, the microfilter being subjected to the flow of water in the opposite direction to the other side of the same surface. Therefore, when water is introduced into the tub from the tap water pipe, the microfilter is cleaned by pushing the residue adhered to the inner surface of the microfilter by using the water moved to the chamber through the hose. The cleaning performance is improved due to the residue falling from the microfilter after the cleaning process and the water used for cleaning is directly discharged through the circulation pump.

With the present invention, less residue accumulates on the surface of the microfilter. Furthermore, accumulated residues are spread almost evenly over all surfaces of the microfilter.

Therefore, the washing performance of the dishwasher is prevented from deteriorating after continuous washing.

Description of drawings

A dishwasher realized for the purposes of the present invention is shown in the accompanying drawings, in which:

Figure 1 is a schematic diagram of a dishwasher.

The components shown in the drawings are labeled as follows:

1. Dishwasher

2. Wash bucket

3. Container

4. Circulation pump

5. Microfilter

6. Supply hose

7. Suction hose

8. Water inlet hole

9. Suction hole

10. Control unit.

detailed description

The dishwasher 1 of the present invention comprises: a washing tub 2 in which items to be cleaned are placed; a container 3, which is located at the lower part of the washing tub 2 and in which the water in the washing tub 2 is collected in the container 3 during the cleaning process; a microfilter 5, which is located in the middle of the container 3, which allows the water to pass from the washing tub 2 to the container 3 but keeps the residue carried by the water; the circulation pump 4, which returns the water accumulated in the container 3 to the washing tub 2; the suction soft Pipe 7, one end of which leads to the circulation pump 4 and the other end to the container 3; suction hole 9, the end of the suction hose 7 leading to the container 3 is fitted to the suction hole 9, and which leads to the microfiltration of the container 3 The walls of the container 5 enable the water accumulated in the container 3 to pass to the suction hose 7;

The dishwasher 1 also comprises a water inlet hole 8 to which the end of the supply hose 6 leading to the container 3 is connected, located on the wall of the container 3 towards the outer surface (DY) of the microfilter 5 superior. The water inlet hole 8 and the suction hole 9 are located on the wall of the container 3 towards the outer surface (DY) of the microfilter 5 ( FIG. 1 ).

After passing through the microfilter 5 , the water sucked by the circulation pump 4 reaches the suction hole 9 and is guided to the washing tub 2 by the circulation pump 4 after passing through the suction hose 7 . When water is introduced from the water mains, the water passing through the supply hose 6 reaches the container 3 by passing through the water inlet hole 8 and enters the container 3 by hitting the microfilter 5 just in front of the water inlet hole 8 . Therefore, when the circulation pump 4 is operated, the residue remaining on the inner surface (IY) of the microfilter 5 in the direction of water absorption is hit against the outer surface of the microfilter 5 by the water introduced into the container 3 in the direction opposite to the direction of water absorption. (DY) away from the inner surface (IY) of the microfilter 5.

When the dishwasher 1 is in operation, the water accumulated in the container 3 is sucked by the circulation pump 4 and sent to the impeller. When the water accumulated in the container 3 is pumped by the circulation pump 4 , residues carried by the water accumulate on the inner surface (IY) of the microfilter 5 in the middle of the container 3 . In this case, when the circulation pump 4 is in operation, the residue accumulated on the inner surface (IY) of the microfilter 5 due to the suction of the circulation pump 4 due to the water introduced from the water pipe in the suction direction of the circulation pump 4 After flowing in the opposite direction it hits the outer surface (DY) of the microfilter 5 and thus moves away from the inner surface (IY) of the microfilter 5 . Thus, residues accumulated on the inner surface (IY) of the microfilter (5) are moved away from the inner surface (IY) by the impact of water introduced from the water mains on the outer surface of the microfilter 5 and thus without user intervention. Provides cleaning of the microfilter 5 in case of

The dishwasher 1 includes a control unit 10 that runs a cleaning program having various cleaning steps such as a pre-wash step, a main wash step, a first wash step, a second wash step, and a regeneration step (which is used when required).

The control unit 10 , before or after any of the washing steps, provides insufficient water for washing or washing, directed through the water inlet hole 8 onto the microfilter 5 and then discharged by the circulation pump 4 . With the microfilter 5 cleaning process, cleaning of the microfilter 5 is provided by removing residues adhering to the microfilter 5 . The volume of water is between about 0.5 and 1.5 liters. The container 3 is empty during cleaning of the microfilter 5, which improves the performance of the process. When the water level in the container 3 rises, the microfilter 5 remains in the water, therefore, it is difficult for the water introduced by the water inlet hole 8 to hit the surface of the microfilter 5 . Therefore, during cleaning of the microfilter 5 , an amount of water sufficient to fill the container 3 up to a height above the microfilter 5 is used.

In an embodiment of the present invention, the microfilter 5 cleaning process is performed after the main cleaning step. In this embodiment, the first wash step performed with cold/hot water is eliminated, and the cleaning process of the microfilter 5 is performed at least once between the main wash step and the second wash (with hot water) step. Provides energy savings and reduces water consumption by eliminating the first wash.

In another embodiment of the present invention, the microfilter 5 cleaning process is performed before the main cleaning step.

In another embodiment of the present invention, said microfilter 5 cleaning process is performed before the washing step.

In another embodiment of the invention, during cleaning of said microfilter 5 , water is directed to the microfilter 5 through the inlet hole 8 and the circulation pump 4 is simultaneously operated by the control unit 10 . Thus, residues leaving the microfilter 5 due to the impingement of the water sprayed through the water inlet hole 8 are discharged by the circulation pump 4 without settling at the bottom of the container 3 .

In another embodiment of the invention, during cleaning of said microfilter 5, the water directed onto the microfilter 5 through the water inlet hole 8 is directed to the impeller before being discharged.

In another embodiment of the invention, the water inlet hole 8 in the form of a nozzle narrows towards the inside of the container 3 . Therefore, the velocity of the water introduced from the tap water pipe by the supply hose 6 is introduced into the container 3 and hits the outer surface (DY) of the microfilter 5 .

It should be understood that the present invention is not limited to the embodiments disclosed above and that a person skilled in the art can easily introduce different embodiments. These different embodiments should also be considered within the scope of the claims of the present invention.

Claims (9)

1. a dish-washing machine (1), comprising: the cask washing (2) wherein placing article to be cleaned, container (3), it is arranged in described cask washing (2) bottom and the water of cask washing (2) is collected in described container (3) described in cleaning process, micro-filter (5), it is positioned at the middle part of described container (3), and it allows to transmit the water being delivered to described container (3) from described cask washing (2), but the residue that its maintenance is carried by this water, circulating pump (4), it makes the water of savings in described container (3) turn back to described cask washing (2), suction hose (7), described circulating pump (4) is led in its one end, and the other end leads to described container (3), inlet hole (9), the end leading to described container (3) of described suction hose (7) is installed on described inlet hole (9), and it can be delivered to described suction hose (7) to the unlimited water of savings in described container (3) that makes of described container (3) wall towards described micro-filter (5), and, supply hose (6), its one end is connected to running water pipe and its other end leads to described container (3), and, water inlet hole (8), the end leading to described container (3) of described supply hose (6) is installed to described water inlet hole (8), it is positioned at towards on described container (3) wall of the outer surface of described micro-filter (5) (DY), it is characterized in that, control unit (10), it runs cleaning procedure, described cleaning procedure has various cleaning step, described control unit provides the water being not enough to clean or wash to be directed to described micro-filter (5) by described water inlet hole (8) and then to be discharged by described circulating pump (4) before or after any one in described cleaning step, and when described dish-washing machine (1) operates, the water introduced from described running water pipe by described supply hose (6) is flowed in the opposite direction in the water suction side with described circulating pump (4), and the described water introduced from running water pipe clashes into described outer surface (DY), the residue put aside on the inner surface (IY) of described micro-filter (5) is made to move away described inner surface (IY), thus cleaning described micro-filter (5) is provided when intervening without user.

2. dish-washing machine according to claim 1 (1), is characterized in that, the regeneration step that described various cleaning step comprises prerinse, main cleaning, first time washing, second time washing or adopts when needed.

3. dish-washing machine according to claim 1 (1), is characterized in that, the described water yield that described control unit (10) provides is more than 0.5 liter and be less than 1.5 liters.

4. the dish-washing machine (1) according to any one in Claim 1-3, it is characterized in that, in described micro-filter (5) cleaning process, use described control unit (10), its described water yield provided is enough to fill described container (3) until the height of described micro-filter (5) top.

5. dish-washing machine according to claim 2 (1), is characterized in that, described control unit (10) realizes described micro-filter (5) cleaning process after described main cleaning step.

6. dish-washing machine according to claim 2 (1), is characterized in that, described control unit (10) realized described micro-filter (5) cleaning process before described main cleaning step.

7. the dish-washing machine (1) according to any one in Claim 1-3, is characterized in that, described control unit (10) realized described micro-filter (5) cleaning process before described cleaning step.

8. the dish-washing machine (1) according to any one in Claim 1-3, it is characterized in that, described control unit (10) also operates described circulating pump (4) while water is directed to described micro-filter (5) by described water inlet hole (8).

9. dish-washing machine according to claim 1 (1), is characterized in that, the water inlet hole (8) in form of nozzle narrows towards the inner side of described container (3).