KR101138877B1 - Dishwashing Machine - Google Patents

Abstract

And a casing, a washing tank, a circulation pump, at least one nozzle, a drain pump, a heater casing or a branching device, and a bypass passage for draining the washing water remaining on the flow path of the circulation pump. Provide a dishwasher. It is effective to prevent deterioration of cleaning performance due to residual water by preventing the residual water from accumulating on the circulation flow path, and it is effective to prevent the accumulation of mechanical corrosion and contamination caused by the residual water. In addition, there is an effect that can remove together the dirt accumulated in the filter body in the process of draining the residual water.

Description

        Dishwasher {Dishwashing Machine}

1 is a perspective view showing a dishwasher according to the present invention.

2 is a cross-sectional view showing a dishwasher according to the present invention having a heater on a circulation passage.

3 is a cross-sectional view showing a dishwasher according to the present invention having a branching device on a circulation passage.

* Description of the symbols for the main parts of the drawings *

1: casing 2: washing tank

3: Door 4: Upper Basket

5: lower basket 6: control unit

7: catch hole 8: upper nozzle

9: middle nozzle 10: lower nozzle

11: filter body 12: water container

13: drain pump 14: circulation pump

15: heater casing 16, 20: bypass flow

17; Drain pipe 19: branch device

The present invention relates to a dishwasher, and more particularly, to a dishwasher capable of draining the remaining washing water without being drained on the flow path of the circulation pump for circulating the washing water of the dishwasher.

The dishwasher is a device for removing contaminants from the dishes by spraying cold or hot water on the dishes stored in the dish basket inside the tub. To this end, a pump and a nozzle for spraying the washing water or the rinsing water are required, and a heater for generating hot water is required.

In general, inside the dishwasher casing is provided with a washing tank with a front opening, the door for opening and closing the opening of the washing tank front is hinged to the front of the casing. The upper and lower portions of the inside of the washing tank are installed so as to slide the baskets in the front and rear directions, respectively, and a spray nozzle is installed in the lower portion of each basket to spray the washing water to the stored dishes.

Under the basket installed in the lower part of the washing tank, a heater for heating the washing water or the rinsing water to generate hot water is installed. When washing water or rinsing water is supplied and the heater is submerged in water, hot water is produced through heat exchange between the supplied water and the heater. The hot water produced is used to remove food wastes attached to the dishes during washing or to blow dry food wastes.

In recent years, in view of safety and energy efficiency of the user, a heater device for heating the washing water is often disposed on the circulation passage of the circulation pump instead of any space at the bottom of the washing tank. Increasingly, a branching device that allows the washing water injection only is disposed on the circulation passage. However, in such a case, the gradient of the circulation flow path from the circulation pump to the cleaning nozzle cannot be secured due to the space structure for disposing the necessary parts at the bottom of the washing tank of the dishwasher while maximizing the storage space of the dishwasher. There is a problem.

Since the amount of residual water increases due to the accumulation of washing water or rinsing water that cannot be drained onto the circulation passage, a problem of deterioration of rinsing performance occurs during washing.

In addition, hygiene problems due to decay of residual water, and parts such as heaters and branching devices are always submerged in the residual water, causing problems such as corrosion and accumulation of contaminants.

In addition, the dishwasher is provided with a filter body between the sump and the circulation pump of the washing tank to filter the solid contaminants generated during the washing process and circulate the washing water or rinsing water, the circulation is continued in one direction only There is a problem that the solid contamination continues to accumulate, but not easily removed.

The present invention is to solve such a problem, to solve the problem that the residual water is accumulated on the flow path of the circulation pump generated when the gradient of the circulation flow path is not sufficiently secured due to the heater or the branching device installed on the circulation flow path. It is an object of the present invention to provide a dishwasher having a bypass flow path for improving the washing performance since no residual water remains on the flow path.

In order to solve this problem, the dishwasher according to the present invention,

At least one casing, a washing tank provided inside the casing to store dishes, a circulating pump for supplying the washing water to the washing tank and circulating the washing tank, and at least one of supplying the washing water supplied by the circulating pump to the washing tank at high pressure. The above nozzle, a drain pump for draining the sewage generated after washing in the washing tank, and a heater casing or branching device connected to the circulation pump at the bottom of the washing tank,

It is characterized by having a bypass passage for draining the wash water remaining on the flow path of the circulation pump.

In addition, the bypass flow passage is characterized in that it is provided extending from the heater casing or branch device side to the drain pump side.

In addition, the dishwasher is characterized in that it further comprises a filter body for filtering the solid contamination generated in the washing process near the water collecting port of the washing tank.

In addition, the bypass flow passage is provided extending from the heater casing or the branching device toward the filter body, characterized in that the contaminants hanging on the filter body when the water remaining on the flow path of the circulation pump is drained together.

The washing water remaining after the operation of the circulation pump on the flow path of the circulation pump is moved to the vicinity of the drainage pump by the bypass flow passage and is then drained to the outside of the dishwasher by the operation of the drainage pump.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing a dishwasher according to the present invention.

The dishwasher according to the present invention includes a casing 1 and a door 3, and a washing tank 2 is provided inside the casing 1. The door 3 for opening and closing the opening of the front side of the washing tank 2 is hinged to the front side of the casing 1. The upper end of the casing 1 is provided with a control unit 6 for controlling the washing stroke.

The upper and lower portions of the inside of the washing tank 2 are respectively installed so that the baskets 4 and 5 for accommodating the dishes slide in the front and rear directions, and the upper and lower portions of the baskets 3 and 4 are sprayed to spray the washing water to the dishes. A nozzle (not shown) is installed. In the space provided separately under the washing tank (2) is provided with a sump (not shown) formed to collect the washing water or rinsing water, the lower end of the washing tank (2) is provided with a sump (7) to collect the washing water in the sump. .

2 is a cross-sectional view showing a dishwasher according to the present invention having a heater on a circulation passage.

The interior of the casing (1) is roughly divided into a washing tank (2) located at the top and an electric compartment provided at the bottom of the washing tank (2). As described above, the washing tank 2 is provided with baskets 4 and 5 for loading dishes, one nozzle 8 is installed at the top of the upper basket 4, and the lower basket 5 One nozzle (9, 10) is provided at the top and the bottom, respectively. One side of the casing (1) is provided with a flow path 18 for supplying the washing water to each nozzle (8, 9, 10) is connected to the circulation pump 14 and the heater casing (15).

The wash water is collected in the sump 12 through a sump (see 7 in FIG. 1) provided at the bottom of the wash tub 2. The filter body 12 is provided between the water collecting port (7 of FIG. 1) and the water collecting container 12 to filter out solid contamination such as food waste generated during the washing process so that the washing water can be circulated smoothly.

The sump 12 provided at the bottom of the washing tank 2 is provided to be in communication with the circulation pump 14 to collect the washing water and to supply it to the circulation pump 14 to circulate the washing water. The circulation pump 14 is called food dregs attached to the tableware, and is provided with a heater to increase washing efficiency such as oil, and is connected to a heater casing 15 that serves to warm the washing water, and the hot casing 15 passes through the hot casing 15. The heater casing 15 is provided to communicate with the flow path 18 supplied to the nozzle so that water is supplied into the washing tank 2.

Unlike the existing dishwasher, since the components such as the heater casing 15 are located at the bottom of the washing tank 2, the gradient due to the height difference between the circulation passage and the drainage passage is not sufficiently maintained, and thus, from the circulation pump 14 The cleaning flow is performed through the flow path 18 and the circulating flow passage circulating to the water collecting tank 12 at the bottom of the washing tank 2, in particular, the washing water or the rinsing water remains in the circulation flow passage near the heater case.

As described above, residual washing water and rinsing water (hereinafter referred to as residual water) cause corrosion and contamination accumulation, and should be removed. For this purpose, in the dishwasher according to the present invention, the circulation flow path and the drainage pump on the heater casing 15 side The bypass flow path 16 is provided between the flow paths on the side of 13, and the residual water remaining in the circulation flow path after the process of washing and rinsing is moved to the drain pump 13 through the bypass flow path 16. It is provided to drain to the outside through the drain pipe 17 by the drainage action of the drain pump 13 is disclosed.                     

The sump 12 is connected to the drain pump 13 to drain the water after washing and rinsing, and the drain pump 13 is provided such that the drain pipe 17 communicates with the outside of the dishwasher.

3 is a cross-sectional view showing a dishwasher according to the present invention having a branching device on a circulation passage.

3 is basically the same as the dishwasher of FIG. 2, except that the branching apparatus is provided where the heater casing 15 of FIG. 2 is installed. The heater is provided in a separate place and not shown in FIG.

The branching device 19 can send the washing water passing through the circulation pump 14 to the lower nozzle 10 only, to the upper nozzle 8, the middle nozzle 9 only, or to supply the washing water to all three nozzles. By selectively supplying water to the nozzle is a device that can be washed even when dishes are only a part of the basket (4, 5) inside the washing tank (2). The branch device 19 communicates with the circulation pump 14 and is connected with a pipe 18 through each nozzle. In addition, at the lower end of the branching apparatus, a bypass passage 20 for draining the residual water accumulated in the circulation passage near the branching apparatus is extended to the drain pump 13 side.

Hereinafter, with reference to Figures 2 and 3 will be described the operation and effect of the dish washer according to an embodiment of the present invention.

When the dishwasher is operated, the washing water is supplied to the sump 12 and the circulation pump 14 is operated when the water level is higher than a predetermined level. The washing water passing through the circulation pump 14 is heated by passing through the heater casing 15 and the flow path It is supplied to each nozzle 8, 9, and 10 through the 18, and is injected.

The sprayed washing water washes the dishes stacked in the baskets 4 and 5 provided in the washing tank 2, and then passes through the filter body 11 provided near the water collecting port provided at the bottom of the washing tank 2, and then removes food waste. After collecting the solid pollution of the collecting tank 12, by the action of the circulation pump 14 continues this stroke until the dishes are washed clean.

When all of the dishes are washed, the wash water is accumulated in the sump 12 again, the wash water is drained out of the dishwasher through the drain pipe 17 by the action of the drain pump (13). At this time, the residual water remaining in the circulation passage is moved to the vicinity of the drain pump 13 by the bypass passage 16 and is drained to the outside by the action of the drain pump 13.

The dishwasher according to FIG. 3 also performs dish washing in the same operation. The difference from the case of FIG. 2 is provided with a branching device 19, which selectively supplies washing water to the nozzles to the baskets 4 and 5 when washing. When a small amount of dishes are stacked, only one basket of dishes can be washed.

In the case of the dishwasher according to FIG. 3, since the branch device 19 is provided at the bottom of the washing tank 2, the gradient of the circulation flow path is not sufficiently maintained, and the residual water is accumulated in the circulation flow path. The washing machine includes a bypass passage 20 from the branch device 19 side to the drain pump 13 side, and drains the washing water by the action of the drain pump 13 during the drainage stroke.

In addition, when the filter body is provided in a portion of the circulation passage, unlike in Figures 2 and 3, the bypass passages 16 and 20 are provided in a direction opposite to the direction in which the washing water is circulated and filtered. The contaminants accumulated in the filter may be drained together when the residual water is removed.

As described in detail above, the dishwasher according to the present invention has an effect of preventing the residual water from accumulating on the circulation flow passage to prevent deterioration of washing performance due to the residual water. In addition, there is an effect that can prevent the accumulation of mechanical corrosion and contamination caused by the residual water pooling. In addition, there is an effect that can remove together the dirt accumulated in the filter body in the process of draining the residual water.

Claims (5)

 Casing,  A washing tank provided inside the casing and storing dishes; A filter sieve for filtering solid contamination generated in a washing process near a water collecting port of the washing tank;  A circulation pump for supplying the washing water to the washing tank and circulating it to perform washing; At least one nozzle supplying the washing water supplied by the circulation pump to the washing tank at high pressure; A drain pump for draining sewage generated after washing in the washing tank; A heater casing or branching device connected to the circulation pump at a lower end of the washing tank; It is provided with a bypass passage for draining the wash water remaining on the flow path of the circulation pump, The bypass flow passage extends from the heater casing or the branching device toward the filter body, and drains contaminants caught in the filter body when water remaining on the flow path of the circulation pump is drained together. dish washer. The method of claim 1, And the bypass passage extends from the heater casing or the branching device side to the drain pump side. delete delete The method of claim 1, Washing water remaining after the operation of the circulation pump on the flow path of the circulation pump is moved to the vicinity of the drainage pump by the bypass flow path and characterized in that drained to the outside of the dishwasher by the operation of the drainage pump is performed subsequently dish washer.

Images