KR101054183B1 - Air brake structure of dishwasher - Google Patents

Abstract

The present invention relates to a dishwasher, and more particularly, to the outside of the noise through the air brake attached to the dishwasher, the air brake of the dishwasher for preventing the phenomenon that the washing water in the washing tank is scattered through the air brake It's about structure.

The air brake structure of the dish washing machine according to the present invention includes an air inlet formed on an upper surface of the air inlet from the outside; A washing tank air inlet communicating with the tub and formed at a central portion, and into which the air sucked into the air inlet is introduced into the washing tank; A first air guide wall extending and inclined by a predetermined length from one side edge; And a second air guide wall extending and inclined by a predetermined length from an outer circumferential surface of the washing tank air intake port, wherein the air flow path from the air intake port to the washing tank air intake port is curved a plurality of times. do.

According to the air brake structure of the dish washing machine according to the present invention, there is an effect that the noise generated when the inside of the washing tank is leaked to the outside of the washing machine through the air inlet of the air brake is reduced.

Air brake, sump, flow meter

Description

An air brake system of a dish washer

1 is a cross-sectional view of an air brake provided in a conventional dishwasher.

Figure 2 is a cross-sectional view schematically showing a dishwasher equipped with an air brake structure according to the spirit of the present invention.

3 is a side cross-sectional view of the cleaner provided with the air brake structure.

4 is a cross-sectional view showing an air brake structure according to the spirit of the present invention.

Figure 5 is a side cross-sectional view showing a non-return check valve structure according to the spirit of the present invention.

<Description of the symbols for the main parts of the drawings>

100: dishwasher 110: tub 111: door

120: upper rack 130: lower rack 140: water guide

150: upper nozzle 160: lower nozzle 170: sump

180: washing pump 190: motor 200: air brake

210: water supply hose connection port 220: plotter 230: air intake port

240: Tub connection port 250: Siphon check valve 260: Backflow check valve

300: micro switch 310: contact terminal

The present invention relates to a dishwasher, and more particularly, to the outside of the noise through the air brake attached to the dishwasher, the air brake of the dishwasher to prevent the phenomenon that the washing water in the washing tank is scattered through the air brake It's about structure.

In general, the dishwasher is a convenient kitchen appliance that automatically removes food debris such as rice paste attached to the tableware by spraying high-pressure washing water and then removes it.

1 is a cross-sectional view of an air brake provided in a conventional dishwasher.

Referring to FIG. 1, the conventional air brake 10 is formed on a bottom surface of the water supply hose connector 11 into which tap water is introduced from a raw water pipe, and detects an amount of raw water entering the water supply hose connector 12. It is installed on the water flow rate detection flow meter 12 and the water flow path formed in the air brake 10, and the siphon prevention gap 13 for preventing the siphon phenomenon that the raw water continues to flow even if the water supply is stopped. This includes.

In addition, the tub is connected to the tub attached to the air brake 10, the air is introduced, a tub connector 14 to allow a portion of the water introduced into the air brake 10 into the tub, and the air brake 10 It includes a softener connector (15) for the water introduced into the) to be moved to the softener.

In addition, a regenerator connector 16 for moving a part of the water introduced into the air brake 10 to a regenerator (not shown), and to allow the washed water to be discharged to the outside by a drain pump (not shown). A sump drain connector 17 connected to the sump and a drain hose connector 18 for discharging water moved to the sump drain connector 17 to the outside along the drain channel formed in the air brake 10 are included.

A drain 배수 valve 19 is also mounted on the sump drain connector 17 to prevent backwashing of the drained wash water.

 Hereinafter, the function of the air brake 10 will be described.

First, the raw water obtained through the water supply hose connector 11 is moved upward along the water supply flow path formed in the air brake 10. Then, the water supplied is dropped to the center portion of the air brake 10 is collected in the water softener connector (15). Then, the water softener is connected to a sump (not shown) through an ion exchange resin filter formed in the softener through the water softener connector 15. Then, when the washing water is continuously supplied, the water rises inside the air brake 10, and a part of the filled water is collected into the regenerator connector 16 formed next to the softener connector 15.

In addition, an air inlet 20 is formed at an upper edge of the air brake 10 to allow air to enter from the outside. The suctioned air communicates with the siphon prevention gap 13 formed on the upper flow path of the air brake 10, thereby preventing the siphon phenomenon in which water continuously flows while the water supply is stopped.

On the other hand, the washing water collected in the softening device connector 15 is softened to facilitate the washing operation by filtering impurities contained in the raw water while passing through the ion exchange resin filter provided in the softening device.

In addition, the washed dirty water flows along the drain passage through the sump drain connector 17, and is discharged to the outside of the dishwasher along the drain hose (not shown) connected to the drain hose connector (18). A small amount of washing water collected in the regenerator connector 16 passes through the regenerator to purify the ion exchange resin filter.

In the case of the air brake 10 device as described above, the distance between the air inlet 20 formed at the upper end of the air brake and the tub connector 14 formed to communicate with the inside of the tub is short, so that noise generated from the inside of the washing tank is reduced. There is a problem of leaking outside the cleaner.

In addition, since the distance between the air inlet 20 and the tub connector 14 is short, water for washing in the washing tank is scattered, exits the tub connector 14 and splashes into the air inlet 20 There is a problem that a phenomenon occurs.

The present invention has been proposed in order to solve the above problems, by improving the internal structure of the air brake so that the noise generated inside the cleaning tank does not leak to the outside, the washing water inside the cleaning tank is scattered to the outside through the air inlet of the air brake It is an object of the present invention to provide an air brake structure of a dishwasher.

Air brake structure of the dishwasher according to the present invention for achieving the above object is an air inlet formed on one side of the upper air inlet air; A washing tank air inlet communicating with the tub and formed at a central portion, and into which the air sucked into the air inlet is introduced into the washing tank; A first air guide wall extending and inclined by a predetermined length from one side edge; And a second air guide wall extending and inclined by a predetermined length from an outer circumferential surface of the washing tank air intake port, wherein the air flow path from the air intake port to the washing tank air intake port is curved a plurality of times. do.

By the configuration as described above, there is an effect that the phenomenon that the cleaning noise generated inside the cleaning tank leaks to the outside through the air brake is reduced.

In addition, there is an effect that the washing water splashed by the dishes in the washing tank does not leak to the outside through the air inlet of the air brake.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and that other embodiments falling within the scope of the present invention may be easily devised by adding, Can be proposed.

2 is a cross-sectional view schematically illustrating a dish washer having an air brake structure according to the spirit of the present invention, and FIG. 3 is a side cross-sectional view of the washer having the air brake structure.                     

2 and 3, the dishwasher 100 having an air brake structure according to the present invention has an outer shape, a tub 110 having a dish washing tank formed therein, and a front surface of the tub 110. The door 111 is formed to open and close the washing tank, and the sump 170 is formed in the center of the bottom surface of the tub 110 to store the washing water.

In detail, the air brake 200 is attached to the outer surface of the tub 110 to transfer the washing water provided from the water supply device to the sump 170, and the air brake 200 is provided with a device for controlling the water supply flow rate.

In addition, the washing pump 180 is connected to the sump 170 and pumps the washing water stored in the sump 170 at a high pressure, and is attached to a rear surface of the washing pump 180 to drive the washing pump 180. The motor 190 is included.

In addition, the water guide 140 and the upper surface of the sump 170, which is a path for the washing water pumped from the washing pump 180 is moved, formed on the bottom of the washing tank to spray the washing water upwards A lower nozzle 160 and an upper nozzle 150 attached to an upper portion of the water guide 140 and extending in a vertical direction from the water guide 140 and positioned at a central portion of the washing tank, It is formed on the ceiling includes a top nozzle 155 for spraying the washing water vertically downward.

In addition, the upper rack 120 is mounted on the upper side of the upper nozzle 150 so that the dishes are washed by the upper nozzle 150, and the lower nozzle 160 so that the dishes are washed by the lower nozzle 160. Lower rack 130 is mounted to the upper side of the) is included.                     

In detail, the upper rack 120 is supported by a rail (not shown) provided on the inner surface of the tub 110, and performs the front and rear movement.

Hereinafter will be described the operation of the dishwasher 100 according to the present invention.

First, the user opens the door 111 of the dishwasher 100 and pulls the upper rack 120 and / or lower rack 130 to the outside of the washing tank. In addition, dishes are stored in the racks 120 and 130. Then, the door 111 is closed and power is applied to the dishwasher.

On the other hand, when power is applied to the dishwasher 100 and the washing step is performed, the washing water passing from the water supply source passes through the air brake 200, and the sump 170 connected to the air brake 200 is connected to the inside of the sump 170. The wash water flows in. Then, after a predetermined amount of washing water flows into the sump, the motor 190 is operated. In addition, by rotating an impeller (not shown) provided in the washing pump 180 coupled to the motor 190, the washing water is pumped to the lower nozzle 160 and the water guide 140.

In addition, the wash water pumped to the water guide 140 is finally moved to the top nozzle 155, the upper nozzle 150 is injected into the washing tank. In addition, the dishes stored in the racks 120 and 130 are washed by the sprayed washing water.

Here, the top nozzle 155 sprays the washing water vertically downward, and the upper nozzle 150 sprays the washing water vertically upward, thereby washing the dishes stored in the upper rack 120.

In addition, the lower nozzle 160 is sprayed the washing water vertically upward, the dishes stored in the lower rack 130 is washed. In addition, by forming an injection hole in the bottom surface of the upper nozzle 150, the washing water is sprayed in both the up and down directions, it can be configured to simultaneously wash the upper side of the tableware accommodated in the lower rack (130).

In addition, when the washing step is completed, the dirty washing water collected in the sump 170 is filtered by a filter (not shown). In addition, the washing water filtered with foreign matter is discharged to the outside of the dishwasher 100 through a drain pump (not shown).

In addition, when the washing water is discharged to the outside, clean washing water is introduced into the sump 170 again through an inlet, and sprayed through the spray nozzles 150 and 160 in the same manner as the washing step. The dishware is rinsed by the sprayed clean water.

In addition, when the rinsing step is completed, by going through the drying step, the washing operation is completed.

4 is a cross-sectional view showing an air brake structure according to the spirit of the present invention.

4, the air brake 200 according to the present invention is attached to the outer surface of the tub 110, as described above, to deliver the washing water to the sump 170 provided on the bottom surface of the tub 110 Function

In detail, the air brake 200 has an air inlet 230 opening to a predetermined size at an upper corner to allow indoor air to be sucked, and a water supply formed at one side of the bottom to supply raw water for dish washing. A hose connector 210 and a water supply passage 213 which is a flow path for washing water flowing from the water supply hose connector 210 is moved.

In addition, the flow meter 211 is located at the end of the water supply passage 213, the flow meter to detect the flow rate by rotating by the wash water, and is formed in the substantially central portion of the bare brake 200, the side of the tub 110 It includes a washing tank air inlet 240 to pass through the inside of the washing tank and the air inlet 230 to communicate.

In detail, the water supply flow passage 213 is formed vertically from the bottom to the upper portion, forms a substantially inverted U shape so as to be bent at a predetermined height and to the bottom again, and the flow meter 211 is positioned at the end of the flow passage. . Further, by forming the washing water inlet 214 of the flow meter 211 to face upward, the impeller formed inside the flow meter 211 is rotated by the free fall force of the washing water.

The reason why the water supply flow path 213 is formed in an inverted U shape as described above, and the washing water inlet 214 of the flow meter 211 is directed upward is generally low. Water pressure can not be detected. Therefore, in order to really detect the water supply flow rate even in a very low pressure environment, the impeller of the flow meter to rotate by the weight of the incoming wash water even if a small amount of wash water flows.

In more detail, in order to prevent the noise generated inside the washing tank from propagating through the air inlet 230 to the outside, it extends from the upper surface of the air brake 200 to a predetermined length and is inclined at a predetermined angle. A first air guide wall 231 is included. In addition, the air inlet flow passages contacting the outer circumferential surface of the washing tank air suction port 240 and being inclined at a predetermined angle, such that the air suction passage from the air suction port 230 to the washing tank air suction port 240 form an approximately S-shape. 2 air guide wall 232 is included.

Meanwhile, the air brake 200 according to the present invention includes a washing water outlet 215 and a washing water outlet 215 through which the washing water discharged by rotating the impeller in the flow meter 211 while passing through the washing water inlet 214 and the washing water outlet 215. The washing water passing through is moved to the sump water supply connector 212 which is an inlet flowing into the sump 170.

In addition, in order to detect the level of the washing water rises into the sump 170 through the sump water supply connector 212, the plotter 220 and the plotter 220 is located on the top of the sump water supply connector 212 Located in the upper side of the), the plotter lever 221 which is raised or lowered together as the plotter 220 ascends or descends, and formed on the upper side of the plotter lever 221, the micro switch for detecting the full water level 300 is included.

In addition, the plotter lever support wall 222 supporting the plotter lever 221 so that the plotter lever 221 is positioned at a predetermined interval from the plotter 220, and the plotter lever 221 is the plotter lever. Plotter lever through-groove 223 formed in the plotter lever support wall 222 is further included to penetrate the support wall 222 to move up and down.                     

In detail, the plotter 220 is installed on the water supply passage as shown, thereby automatically cleaning the contaminants attached to the lower portion of the plotter 220 to prevent the level of the water level in the washing tank is incorrectly detected.

In addition, a contact terminal 310 is formed at a lower end of the micro switch 300 to protrude to a predetermined length and contact the upper end of the plotter lever 221. When the water level reaches the limit line in the washing tank, the upper end of the plotter lever 221 presses the contact terminal 310. When the contact terminal 310 is pressurized, the washing water stops flowing into the dishwasher 100 or operates a drain pump, thereby preventing a leakage accident due to supercharged water.

More specifically, the washing water supplied into the sump 170 is heated to a predetermined temperature by a heater mounted in the sump 170. And, in order to prevent water vapor generated from the heated washing water to be transferred to the micro switch to malfunction or cause electrical problems, and to easily respond to variations in the level limit line according to the size of the product, the plotter 220 and the plotter lever 221 is formed separately. In other words, when the washing machine operates normally, the plotter lever 221 blocks the plotter lever through hole 223 to prevent water vapor from being transferred to the micro switch 300. The upper side of the plotter 220 and the lower end of the plotter lever 221 may be spaced apart from each other by a predetermined interval, thereby actively responding to the change of the size of the plotter 220 according to the capacity of the washing machine.

In addition, the sump drain connector 261 formed on the bottom surface of the air brake 200 to be pumped by the drain pump (not shown), and the wash water introduced into the sump drain connector 261. A drain passage 263 is moved, and a drain hose connector 262 is formed at the end of the drain passage and connected to the drain hose.

In addition, a siphon prevention check valve 252 mounted to an upper portion of the drain passage 263 to prevent a siphon phenomenon in which the washing water is continuously discharged through the drain passage 263 after drainage is stopped is provided. More included. Further, a backflow prevention check valve 260 is further included to prevent the washing water flowing along the drain flow passage 263 through the sump drain connector 261 to flow back to the drain pump by stopping the drain. Detailed description of the non-return check valve 260 will be described later with reference to the drawings.

In detail, the siphon prevention check valve 252 is accommodated in the check valve receiving chamber 254 having a predetermined size. In addition, a drain pipe communication hole 252 having a predetermined size is formed at an upper side of the drain passage 263. In addition, the upper wall of the siphon prevention check valve 250 accommodating chamber 254 passes through a support shaft through which a check valve support shaft 253 protrudes from an upper end of the siphon prevention check valve 250. Grooves 251 are formed.

In more detail, a part of the air introduced through the air inlet 230 is introduced into the check valve receiving chamber 254 through the support shaft through groove 251. In addition, the air introduced into the chamber 254 may be introduced into the drain passage 263 through the drain pipe communication hole 252. In addition, the siphon anti-check valve 250 is made of a rubber material having a property that floats well in water, it is to be able to completely seal the support shaft through groove 251 by forming a pointed upper end. desirable.

Hereinafter, the operation and function of the air brake 200 will be described in detail.

First, air is introduced and discharged through the washing tank air inlet 240 through the air inlet 230 regardless of whether the dishwasher 100 is operated. When power is applied to the dishwasher 100, raw water is introduced through the water supply hose connector 210, and the introduced raw water is moved along the water supply passage 213. The washing water moved along the water supply passage 213 rotates the impeller mounted in the flow meter 211 while falling. In addition, the rotation frequency according to the rotation speed of the impeller is moved to the control unit of the dishwasher 100 is determined the amount of water supplied.

On the other hand, as the wash water flows into the sump 170, the water level is increased, and at the same time the floater 220 is also raised. As the plotter 220 rises, the plotter lever 221 located on the upper side of the plotter 220 also rises. When the plotter lever 221 presses the contact terminal 310 of the micro switch 300, the micro switch 300 detects this and a signal is moved to the control unit of the dishwasher 100. Then, the water supply is stopped by the signal.

On the other hand, when the washing step is completed and the drain pump is operated to drain the wash water containing food waste, the pumped wash water is introduced through the sump drain connector (261). Then, it is moved to the drain hose connector 262 along the drain passage 263, and finally discharged to the outside along the drain hose connected to the drain hose connector 262.

In addition, a portion of the washing water moved along the drain passage 263 leaks into the drain pipe communication hole 252 by water pressure. In addition, the leaked washing water flows into the check valve receiving chamber 254, and the siphon prevention check valve 250 is raised by the introduced wash water. Then, the siphon prevention check valve 250 is raised while the upper portion is satisfactorily blocking the support shaft through groove 251.

In addition, when the drainage is stopped, the amount of washing water flowing on the drain passage 263 is reduced, and the washing water filled in the check valve accommodation chamber 254 is discharged through the drain pipe communication hole 252. The support shaft through groove 252 is opened while the siphon prevention check valve 250 is also lowered together. In addition, the outside air introduced through the air inlet 230 passes through the support shaft through groove 251, the check valve accommodating chamber 254, and the drain pipe communication hole 252 to the drain passage 263. Inflow. As a result, the air is filled in the drain passage 263 by the introduced air so that the siphon phenomenon generated during drainage does not occur.

Figure 5 is a side cross-sectional view showing a non-return check valve structure according to the spirit of the present invention.

Referring to FIG. 5, the non-return check valve structure according to the present invention includes a sump drain connector 261 formed on an inner surface of the air brake 200 and a backflow check valve for opening and closing the sump drain connector 261. 260).                     

The upper portion of the non-return check valve 260 is fixed to the drain passage 263 by the hinge 264 on the inner circumferential surface of both side walls, it is a rotary motion. And, the end of the sump drain connector 261 is formed to be inclined at a predetermined angle from the vertical axis as shown. Therefore, when the drainage stops and the non-return check valve 260 rotates and descends, the sump drain connector 261 is pressurized by the sump drain connector 261 by the weight of the check valve 260. It is characterized by being completely sealed.

By the air brake structure of the dishwasher according to the present invention having the above configuration, the phenomenon that the noise generated when the washing inside the washing tank leaks to the outside of the washer through the air inlet of the air brake is reduced.

In addition, by improving the air intake flow path formed inside the air brake, there is an effect that the phenomenon that the washing water scattered by colliding with the tableware inside the washer to the outside through the air inlet of the air brake is prevented.

Claims (5)

An air inlet formed on one side of the upper surface in order to introduce air from the outside; A washing tank air inlet communicating with the tub and formed in the center portion, and the air sucked into the air inlet is introduced into the washing tank; A first air guide wall extending and inclined by a predetermined length from one side edge; And And a second air guide wall extending and inclined by a predetermined length from an outer circumferential surface of the washing tank air inlet port, wherein the air passage from the air inlet port to the washing tank air inlet port is curved a plurality of times. Air brake structure of the dishwasher. The method of claim 1, The first air guide wall extends downward from the upper edge inner wall, the air brake structure of the dishwasher, characterized in that formed inclined at a predetermined position. The method of claim 1, The second air guide wall is inclined at a predetermined angle from the outer circumferential surface of the washing tank air inlet, the air brake structure of the dish washing machine, characterized in that extending to the upper side. The method of claim 1, Feed hose connection for the delivery of the water supplied from the water supply to the inside; A sump water supply connector for entering the washing water introduced into the washing tank through the water hose connector; And a water supply flow path through which a water supply passage connecting the water supply hose connector and the sump water supply connector flows, wherein the water supply passage is in communication with the air suction port. The method of claim 1, The air flow path leading to the washing tank air inlet has an S-shape, the air brake structure of the dishwasher.

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