KR19990076356A - Vertical dishwasher - Google Patents

Abstract

The present invention relates to an up-down alternating washing dishwasher capable of selectively spraying water on the upper and lower racks (20) (30), the inner panel (10) formed so that the collection and drainage, and the inner panel ( 10) upper and lower racks 20 and 30 provided so that the tableware 1 can be loaded therein, and upper and lower nozzle arms 21 for spraying water disposed adjacent to the racks 20 and 30, respectively. 31, the cleaning filter 12 for filtering the collected wash water, the drain pump 13 and the drain pipe 14 for discharging the washing water, and the purified water through the cleaning filter 12. A water flow control pump 40 for selectively circulating the upper or lower portion, and a flow path for guiding the purified water discharged by the water flow control pump 40 toward the upper nozzle arm 21 or the lower nozzle arm 31 ( 51) and 52, which are mounted on the upper rack 20 or the lower rack 30 while maintaining the maximum capacity of the pump. By selectively controlling the direction of water flow so that water can be sprayed smoothly, the power consumption can be minimized and the washing efficiency can be maximized, regardless of the amount or size of the dishes 1 to be cleaned. Since it does not need to install the flow path blocking valve 153, the structure is simple, and relates to the up and down alternating dish washer for reducing the manufacturing cost.

Description

Vertical dishwasher

The present invention relates to an up-and-down alternating dishwasher capable of selectively injecting water into upper and lower racks, and in particular, to maintain the maximum capacity of the pump and to freely spray water onto the upper or lower rack. By controlling the direction selectively, the present invention relates to an up-and-down alternating dish washer that minimizes power consumption and maximizes washing efficiency regardless of the amount of dish to be cleaned.

A typical conventional dishwasher includes an inner panel 110 formed to allow water collection and drainage, a sump 111 formed at a lower end of the inner panel 110, and the like. The upper and lower racks 120 and 130 installed to load the tableware 1 into the inner panel 110 and water sprays disposed adjacent to the racks 120 and 130, respectively. Upper and lower nozzle arms 121 and 131, a cleaning filter 112 installed in the sump 111 to filter the collected wash water, and the sump 111 Drainage pump 113 and the drainage pipe 114 and the circulation pump for dispensing and circulating the purified water through the cleaning filter 112 to the upper and lower parts mounted on the lower end (Circulating Pump) 140 and the purified water discharged by the circulating pump 140, the upper nozzle arm 121 and the lower nozzle arm ( It is mounted between the upper and lower flow paths 151 and 152 for guiding toward the 131 and the lower flow path 152 and the lower nozzle arm 131. In some cases, water is not sprayed toward the lower rack 130. It is composed of a flow path blocking valve 153 that prevents to block.

The circulation pump 140 is in communication with the lower end of the sump 111 and the inlet 148 and the upper and lower discharge ports 142 and 143 so as to branch toward the upper nozzle arm 121 and the lower nozzle arm 131, respectively. The upper and lower discharge ports 142 and 143 are formed to be connected to the upper and lower flow paths 151 and 152, respectively, and the flow path blocking valve 153 generally includes a solenoid valve. will be.

Referring to the operation principle of the conventional dishwasher as described above based on the accompanying drawings as follows.

1A and 2B are views illustrating an operation state of a general dishwasher, and FIG. 1A is a state in which water is sprayed on the upper rack 120 and the lower rack 130 so that the overall washing is performed, and FIG. In one case, the water is sprayed only on the upper rack 120 to show a state where the washing is partially performed.

As shown in FIG. 1A, first, a predetermined amount of clean water is supplied from outside and collected in the sump 111, and then flows into the circulation pump 140 through the suction port 148. When the circulation pump 140 is operated, the water inside is forcibly discharged through the upper and lower discharge ports 142 and 143 of the circulation pump 140 and the upper and lower nozzles along the respective flow paths 151 and 152. The water is supplied to the arms 121 and 131, and the water is sprayed upward through the nozzle arms 121 and 131 toward the upper and lower racks 120 and 130. The stored tableware 1 is washed. Subsequently, the contaminated washing water sprayed on the dish 1 flows down through the inner panel 110 and is filtered through the cleaning filter 112, and then collected in the sump 111 and then through the suction port 148. The recirculation pump 140 is re-introduced and repeatedly circulated to wash the dishes 1 cleanly, and after repeated washing for a predetermined time, the washing water is sucked into the drain pump 113 and discharged to the outside through the drain pipe 114. This completes the cleaning. In this case, the capacity of the circulation pump 140 is divided up and down half to function.

On the other hand, when there are fewer dishes 1 to be washed, as shown in FIG. 1B, one of the upper and lower racks 120 and 130, that is, only the upper rack 120 may be used to reduce power consumption. It works so that it can be explained as follows.

When the partial washing method is adopted from the controller (not shown), an electrical signal is transmitted to the flow path blocking valve 153 to block the lower flow path 152 connected to the lower discharge port 143 of the circulation pump 140. Therefore, the water in the circulation pump 140 is forcibly discharged only through the upper discharge port 142 to reach the upper nozzle arm 121 along the upper flow path 151, and then sprayed upward toward the upper rack 120. At this time, since the entire capacity of the circulation pump 140 is loaded on the upper nozzle arm 121, it exhibits strong washing performance. Since the circulation operation principle is the same as the entire washing method, a detailed description thereof will be omitted.

However, the conventional dishwasher is a method for minimizing power consumption in the case of a small amount of dishes (1) to be washed, mainly structured to supply only toward the upper nozzle arm 121 by blocking only the lower nozzle arm (131). Has been proposed or developed, such a top and bottom separation washing method does not achieve the power saving effect other than only operating the upper rack 120 is only a method of using a large capacity dishwasher as a small capacity dishwasher, after all At the time of operation, since a water flow branching up and down from one circulation pump 140 has to be formed, the pump capacity is divided by half, which leads to a problem that the washing efficiency is deteriorated.

In addition, the conventional dishwasher has a problem that not only the structure is complicated but also the manufacturing cost increases by applying the solenoid valve as the flow path blocking valve 153 for blocking the lower flow path 152.

In addition, when the conventional dishwasher is to wash a small amount of the large sized dishes (1), since it is impossible to store in the upper rack 20, the dish 1 must be washed as a whole after storing the dish (1) in the lower rack (30) There was a problem that unnecessary power is wasted.

Accordingly, the present invention has been made to solve the above problems, the amount of dishes to be washed by selectively controlling the direction of water flow so that water can be sprayed freely to the upper or lower rack while maintaining the maximum capacity of the pump Its purpose is to provide a top and bottom alternate dishwasher that minimizes power consumption and maximizes cleaning efficiency.

1A and 2B illustrate an operating state of a general dishwasher.

1a is a state in which water is sprayed on the upper rack and the lower rack as a whole,

1B is a state in which water is sprayed only on the upper rack when the amount to be cleaned is a small amount, and the washing is partially performed.

Figure 2a and Figure 2b is a cross-sectional view showing the structure of the water flow control pump applied to the up and down alternating dish washer according to the present invention,

Figure 2a is a state in which the rotation difference is rotated in the counterclockwise direction so that water is injected only toward the lower rack,

2b is a state in which the rotation wheel is rotated in a clockwise direction so that water can be injected only toward the upper rack,

Figure 3a and Figure 3b shows the operating state of the up and down alternating dish washer according to the present invention,

3a shows a state in which water is sprayed only on the lower rack for a predetermined time so that the lower alternate washing is performed;

3b shows a state in which water is sprayed only on the upper rack for a predetermined time so that the upper alternate washing is performed.

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

One ; Tableware 10; Inner panel

11; Sump 12; Cleaning filter

13; Drain pump 14; drain

20; Upper rack 21; Upper nozzle arm

30; Lower rack 31; Lower nozzle arm

40; Water flow control pump 41; case

42; Upper discharge port 43; Lower outlet

44; Turning wheel 45; Water flow switching valve

46; Hinge axis 47; Shielding plate

48; Inlet 51; Upper flow path

52; Lower flow path

The upper and lower alternating dishwashers according to the present invention for achieving the above object, the inner panel formed to be able to catch and drain, the upper and lower racks installed so as to load the dishes in the inner panel, and each of these racks The upper and lower nozzle arms for water spray disposed adjacent to each other, a cleaning filter for filtering the collected wash water, a drain pump and a drain pipe for discharging the washing water, and water purified through the cleaning filter. A water flow control pump for selectively circulating in the lower portion, and a flow path for guiding the purified water discharged by the water flow control pump toward the upper nozzle arm or the lower nozzle arm.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 3a and 3b, the up and down alternating dishwasher according to the present invention is the inner panel 10 formed to be collected and drained, and the sump 11 formed at the lower end of the inner panel 10 And upper and lower racks 20 and 30 installed so that the tableware 1 can be loaded into the inner panel 10, and water spraying beds disposed adjacent to the racks 20 and 30, respectively. The lower nozzle arms 21 and 31 and the cleaning filter 12 installed in the sump 11 so as to filter the collected washing water and the lower end of the sump 11 flow in and out of the washing water. A drain pump 13 and a drain pipe 14, a water flow control pump 40 for selectively circulating the purified water through the cleaning filter 12 to an upper portion or a lower portion thereof, and the water flow control pump 40. Upper and lower parts for guiding purified water discharged by the upper nozzle arm 21 or lower nozzle arm 31 It is composed by 51 and 52.

As shown in FIGS. 2A and 2B, the water flow control pump 40 communicates with the lower end of the sump 11 and branches to the upper nozzle arm 21 and the lower nozzle arm 31, respectively. And a case 41 having upper and lower discharge ports 42 and 43 formed therein, a rotary difference 44 provided inside the case 41, and a case between upper and lower discharge ports 42 and 43. The upper and lower discharge ports 42 and 43 are hinged to an inner wall and the front end thereof is formed to be adjacent to the outer circumference of the rotary car 44. It is composed of a water flow switching valve (45) for closing either side. The water flow switching valve 45 has two shielding plates 47 integrally formed at a “V” shape while maintaining a predetermined angle, and forms a structure in which the hinge shaft 46 is coupled to the joint portion.

In addition, the water flow control pump 40 is alternately supplied to the upper and lower racks 20 and 30 by forward and reverse rotation (clockwise or counterclockwise) at a predetermined cycle, thereby cleaning the energy with the maximum capacity of the pump. It is desirable to minimize consumption.

Referring to the operation principle of the present invention as described above based on the accompanying drawings as follows.

2a and 2b is a cross-sectional view showing the structure of the water flow control pump 40 applied to the up and down alternating washing dish washing machine according to the present invention, Figure 2a is a rotary rack 44 is rotated counterclockwise to the lower rack ( 2B is a state in which water is sprayed only toward 30), and FIG. 2B shows a state in which the rotor wheel 44 is rotated in a clockwise direction so that water is sprayed only toward the upper rack 20, respectively. 3a and 3b is a view showing the operating state of the up and down alternating washing dish washing machine according to the present invention, Figure 3a is a state in which the water is sprayed only in the lower rack 30 for a predetermined time, the lower alternating washing, Figure 3b Water is sprayed only on the upper rack 20 during the time to show the state in which the upper alternating washing is performed.

When water is injected into the lower rack 30 as shown in FIGS. 2A and 3A, first, a predetermined amount of clean water is supplied from the outside and collected in the sump 11, and then through the suction port 48. It flows into the water flow control pump 40. At this time, the rotary difference 44 of the water flow control pump 40 is rotated counterclockwise by selective control from a controller (not shown), and the water inside the case 41 is discharged from the rotary difference 44. The upper discharge port 42 is blocked by turning the shielding plate 47 of the water flow switching valve 45 clockwise with respect to the hinge shaft 46 while forming the water flow counterclockwise by the rotational force. Since the two water flow switching valves 45 are fixed to the shape of the "V", the water flow switching valve 45 is pressurized while the water flows on the inner surface of the shielding plate 47 at the time of changing direction. The water inside is forcibly discharged through the lower discharge port 43 and supplied to the lower nozzle arm 31 along the lower flow path 52, and the water is lowered toward the lower rack 30 through the lower nozzle arm 31. While washing upward, the dishes 1 housed in the lower rack 30 are washed.

Subsequently, the contaminated washing water sprayed on the dish 1 flows down through the inner panel 10 and is filtered through the cleaning filter 12, and then collected in the sump 11 and then through the suction port 48. After re-introducing into the water flow control pump 40 and repeatedly circulating, the dish 1 is cleaned. After repeating this operation for a predetermined time, the rotational difference of the water flow control pump 40 is controlled by the controller. While 44 is rotated counterclockwise, water is sprayed toward the upper rack 20 as shown in FIGS. 2B and 3B. That is, the water inside the case 41 forms a stream of water in the clockwise direction by the rotational force of the rotary wheel 44, and the shield plate 47 of the water flow switching valve 45 is half of the hinge shaft 46. The lower discharge port 43 is blocked by turning clockwise. As a result, the water inside is forcibly discharged through the upper discharge port 42 and supplied to the upper nozzle arm 21 along the upper flow path 51, and the water is supplied to the upper rack 20 through the upper nozzle arm 21. As it is sprayed upward, the dishes 1 stored in the upper rack 20 are to be washed.

After washing the dishes 1 of the upper rack 20 for a predetermined time in the above state, the lower washing process is repeated again, and after the upper and lower alternating washing processes are performed, the contaminated washing water is drained pump ( 13) It is sucked into and discharged to the outside through the drain pipe 14, the washing is completed. In the present invention, since the water flow control pump 40 washes up and down alternately at regular intervals, it is possible to perform powerful washing while maintaining the maximum capacity of the pump, and to wash both ends in a quantity capable of washing only one end. You can do it.

On the other hand, if the dish 1 to be washed in small quantities, the upper and lower alternating washing dish washing machine according to the present invention can select the rotation direction of the water flow control pump 40, the user can arbitrarily the upper rack 20 or lower rack ( After storing the dishes 1 in 30), the water consumption can be reduced by supplying and spraying water only toward the selected rack. That is, when the partial washing method is adopted from the control unit, only the discharge port on the rack side in which the tableware 1 is stored can be kept open for a desired time, thereby enabling powerful washing using the minimum power at the maximum capacity of the pump. The circulating principle of operation is the same as the entire washing method, so a detailed description thereof will be omitted.

When the dishwasher according to the present invention intends to partially wash a small amount of the dish 1, even when the dish 1 is large and accommodated in the lower rack 30, only the lower rack 30 can be freely operated. It will be more convenient and wider to use.

The effects of the present invention that can be expected by the configuration and action as described above are as follows.

The upper and lower alternating dishwashers according to the present invention maintain the maximum capacity of the pump and the dishes to be washed by selectively controlling the direction of water flow so that water can be freely sprayed on the upper rack 20 or the lower rack 30 (1). Minimize power consumption and maximize cleaning efficiency without regard to quantity and size)), and the structure is simple and production cost is reduced because it does not need to install a separate flow path blocking valve 153 as in the related art. There are various effects such as being.

Claims (3)

An inner panel formed to allow water collection and drainage, upper and lower racks arranged to load dishes in the inner panel, upper and lower nozzle arms for water injection disposed adjacent to each of these racks, and collected wash water A cleaning filter for filtering the water, a drain pump and a drain pipe for discharging the washing water, a water flow control pump for selectively circulating the purified water through the cleaning filter to the upper portion or the lower portion, and the water flow control pump An up-down alternating washing dishwasher, comprising: a flow path for guiding discharged purified water toward an upper nozzle arm or a lower nozzle arm. The case of claim 1, wherein the water flow control pump communicates with the lower end of the sump and is formed with a suction port and upper and lower discharge ports respectively branched toward the upper nozzle arm and the lower nozzle arm, and a rotary difference provided in the case. And a hinge coupled to the inner wall of the case between the upper and lower discharge ports, and the tip thereof is adjacent to the outer circumference of the rotary car, so that either one of the upper and lower discharge ports is formed by the water flow composition according to the change in the rotation direction of the rotary car. The up and down alternating wash dishwasher, characterized in that consisting of a closing water flow switching valve. According to claim 1, wherein the water flow control pump is rotated forward and backward at a predetermined cycle by alternately supplying the upper and lower racks, the washing is performed at the maximum capacity of the pump and the energy consumption is minimized, characterized in that to minimize the dish washer.