KR101065697B1 - Air brake assembly of dishwasher and water supply control method using the same - Google Patents

Abstract

The present invention provides an air brake assembly and a water supply control method of the dishwasher to improve the structure and the water supply control method of the air brake assembly of the dishwasher, so that the amount of washing water required for the washing and rinsing stroke can be accurately supplied into the dishwasher. It would be.

To this end, the present invention is connected to a water supply lake in which the washing water is introduced to one side of the bottom, the other side is provided with a water softener connection lake for sending the water supply to the water softener; A flow meter installed at a side of the water supply lake to detect a flow rate of the washing water supplied into the air brake; And, provided in the air brake is provided with an air brake assembly of the dishwasher, characterized in that it comprises a: water level sensing means for detecting the level of the wash water supplied to the inside of the air brake.

In addition, the water supply control method of the dishwasher includes a water supply step of supplying the washing water into the air brake: a sensing step of detecting a state in which the washing water is filled in the air brake; Detecting the water supply flow rate by the flow meter while the washing water is filled in the air brake: calculating a water supply amount per one rotation of the flow meter; Calculating the number of revolutions of the flowmeter according to the amount of wash water required for washing with the calculated amount of water per revolution of the transmitter is performed.

Dishwasher, Air Brake, Water Level Detector, Flow Meter

Description

Air break assembly of dishwasher and water supply control method using the same {air-break-assembly of dishwasher and water supplying control methode}

1 is a longitudinal sectional view schematically showing a conventional dishwasher

Figure 2 is a schematic view showing the structure of a conventional air brake assembly

Figure 3 is a schematic view showing the structure of an air brake assembly according to an embodiment of the present invention

4 is a flowchart illustrating a water supply control method of the dish washing machine according to the embodiment of the present invention.

** Explanation of symbols for the main parts of the invention **

100: air brake 110: water supply hose connector

111: inlet valve 120: flow meter

121: impeller 122: Hall sensor

130: water softener connector 131: outlet valve

140: player connector 160: water softener

170: player 210: low water level sensor

220: high water level sensor

The present invention relates to a dishwasher, and more particularly, to an air brake assembly of a dishwasher and a water supply control method using the same to accurately supply a required amount of washing water in a washing and rinsing stroke.

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 longitudinal sectional view schematically showing a conventional dishwasher, and FIG. 2 is a schematic view showing a structure of a conventional air brake assembly.

Referring to Figure 1, a conventional dishwasher will be described.

The dishwasher 1 is a device for washing dishes by spraying washing water on the dishes. The dishwasher 1 forms an outer shape, a tub 3 having a dish washing tank 3a formed therein, and a lower portion of the tub 3a for supplying high-pressure washing water to the washing tank 3a. It comprises a part 5 (hereinafter, referred to as a "drive part mounting part") in which the electrical equipment and the like are installed.

The washing tank 3a and the driving unit installing unit 5 are described as follows.

The front door 7 which can be opened and closed is installed in the front of the washing tank 3a. An upper rack 12 and a lower rack 14 on which dishes are placed are installed in the washing tank 3a, and an upper spray arm 32 spraying washing water on the lower part of the upper rack 12 and the lower rack 14. ) And lower injection arm 34 are disposed respectively. And the heater 13 which heats wash water to predetermined temperature is provided in the lower part of the washing tank 3a.

On the other hand, the driving unit installation portion 5 is provided with a sump (9) for receiving the wash water, the sump (9) pumping the wash water to the upper injection arm 32 and the lower injection arm 34 of the washing tank (3a) A sending wash pump is installed. In general, the sump 9 and the upper injection arm 32 and the lower injection arm 34 are connected by the upper connection pipe 322 and the lower connection pipe 324.

In addition, the washing pump generally includes a motor 11 generating a driving force and an impeller (not shown) connected to the motor 11. The motor 11 is provided on the side of the sump 9.

On the other hand, the outer surface of the tub (3) to the sump (9) provided on the bottom surface of the washing tank (3a) not only delivers the washing water to the sump (9), but also the water supply flow rate is controlled by the probe (120) Air brake assembly is installed.

2, the conventional air brake assembly is formed on the air brake 100 and the bottom surface of the air brake is filled with the washing water is supplied, the water supply hose connector 110, the washing water flowing from the water supply pipe (not shown) is introduced And, an inlet valve (111: inlet valve) for determining whether the inlet of the wash water flowing through the water supply hose connector 110, and a water flow rate detection flow meter for detecting the amount of the wash water coming into the water hose connector (11) (120: Flowmeter) is included.

In addition, a water softener connector 130 for allowing the washing water introduced into the air brake 10 to be moved to the softener, and a regenerator for allowing a portion of the washing water introduced to the air brake 10 to be moved to the regenerator 170. The connector 140 is further included.                         

At this time, an outlet valve (131: outlet valve) for determining that the water supplied to the air brake 100 is moved to the water softener 160 is installed on the water softener connector 130 side.

 Hereinafter, the function of the air brake 100 will be described.

First, raw water obtained through the water supply hose connector 110 is moved upward along the water supply flow path formed in the air brake 100. Then, the supplied washing water is dropped to the center portion of the air brake 100 is collected in the water softener connector 130. Then, the water softener is connected to the sump 9 through an ion exchange resin filter formed in the softener 160 through the softener connector 130.

On the other hand, the washing water collected in the water softener connector 130 is filtered through the ion exchange resin filter provided in the softener 160 to filter impurities, such as in the raw water, to soften the washing action.

However, the air brake assembly as described above has a disadvantage in that it is not possible to accurately measure the flow rate because the flow rate supplied to the air brake is adjusted by using the rotation frequency of the preset flowmeter 120.

That is, when the rotation frequency of the preset flowmeter 120 is used, the washing water may be supercharged or insufficiently supplied depending on the water pressure to be supplied to the water supply and the state in which the impeller 121 is provided inside the flowmeter 120. Problems have been derived accordingly.

The present invention is to solve the above problems, an object of the present invention is to improve the structure of the air brake assembly and the water supply control method of the dishwasher, the amount of washing water required for washing and rinsing stroke into the dishwasher An object of the present invention is to provide an air brake assembly and a water supply control method of a dishwasher.

In order to achieve the above object, the present invention is connected to a water supply lake to which the wash water is introduced into one side of the bottom, the other side is provided with a water softener connected to the water softener for sending the water to the water softener; A flow meter installed at a side of the water supply lake to detect a flow rate of the washing water supplied into the air brake; And, provided in the air brake is provided with an air brake assembly of the dishwasher, characterized in that it comprises a: a water level detecting means for detecting the water level of the water supplied to the inside of the air brake.

In addition, the water supply control method of the dishwasher according to the present invention for achieving the above object is a water supply step of supplying the washing water with an air brake; A sensing step of detecting a state in which the washing water is filled in the air brake; Detecting a water supply flow rate by a flow meter in a state where washing water is filled in the air brake; Calculating a water supply amount per one rotation of the flow meter; Calculating the number of revolutions of the flowmeter according to the amount of wash water required for washing with the calculated amount of water per revolution of the transmitter is performed.

Therefore, by accurately calculating the amount of water per revolution of the flowmeter, the washing water required for the washing and rinsing stroke can be supplied into the dishwasher through the air brake.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

The same components as in the related art are provided with the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

3 is a configuration diagram schematically showing the structure of an air brake assembly according to an embodiment of the present invention, Figure 4 is a flow chart showing a water supply control method of the dish washer according to an embodiment of the present invention.

The air brake assembly of the dishwasher according to the embodiment of the present invention not only transfers the washing water provided from the water supply pipe to the sump (see FIG. 1), but also refers to FIG. 3 as a device for controlling the water supply flow rate. Is largely configured to include an air brake 100, a flow meter 120, and a water level detecting means.

Here, the air brake 100 is formed to have a predetermined capacity, and the washing water is supplied through a water supply pipe (not shown).

At this time, a water supply lake connector 110 is provided on one side of the bottom of the air brake 100 through the water supply pipe, and water is supplied to the air brake 100 through the water supply lake connector on the water supply lake connector 110. Inlet valve 111 to determine whether the water supply of the washing water is installed.

In addition, the other side of the bottom of the air brake 100 is provided with a water softener connector 130 to move the water supplied into the air brake 100 to the softener, the air brake 100 on the water softener connector 130 Outlet valve 131 is installed to determine whether the water supplied to the water discharged to the water softener, and a regeneration connector 140 for installing a part of the water introduced into the air brake 100 is moved to the regenerator. .

And, the flow meter 120 is installed on the water supply lake connector 110 side, serves to detect the flow rate of the washing water flowing into the air brake 100, the inside rotates by the washing water supplied The impeller 121 is installed, and one side of the impeller 121 is provided with a hall sensor 122 for outputting a rotation frequency according to the rotation speed of the impeller 121.

And, the water level detecting means is provided in the air brake 100 serves to detect the level of the wash water supplied to the air brake 100.

The water level detecting means according to an embodiment of the present invention is provided at the bottom of the air brake 100, the low water level detection sensor 210 for detecting a state in which the wash water is supplied into the air brake 100, and the air brake It is provided on the top of the 100 is made of a high water level sensor 220 for detecting a state in which the washing water is filled inside the air brake 100.

At this time, when the wash water is supplied to the air brake 100, the sensor for detecting the low water detects this and turns off the outlet valve 131 to move the wash water supplied to the air brake 100 to the water softener. prevent.                     

In addition, when the washing water is filled in the air brake 100, the high water level sensor 220 detects this to turn off the inlet valve 111 to block the supply of the washing water through the water supply hose connector 110. .

As described above, when the water level detecting means is installed in the air brake 100, it is possible to check the state in which the washing water is filled in the air brake 100, and the flow meter 120 in the washing water is full. Rotation frequency rotated by the washing water supplied to the impeller 121 of the can be calculated by the Hall sensor 122.

On the other hand, in the embodiment of the present invention, it is presented that the high / low water level sensor 210 is provided as the water level detection means, it is also possible to understand the water level using a plotter device.

That is, although not shown, a low floater is installed at the bottom of the air brake, a high floater is installed at the top, and then a hall sensor is installed.

At this time, when the wash water is supplied to the inside of the air brake, the floater of the low water is separated from the initial position by buoyancy, and the hall sensor installed at one side thereof detects this so that the outlet valve is turned off and the washing water is filled inside the air brake. When the cold state, the floater is separated from the initial position by the buoyancy, and the hall sensor installed on one side detects this to allow the inlet valve to be turned off.

The water supply control method of the dish washing machine having the structure as described above is as follows.

That is, in the water supply control method of the dishwasher according to the embodiment of the present invention, a water supply step (ST110) of supplying the washing water to the air brake 100, and a sensing step of detecting a state in which the washing water is filled inside the air brake 100. (ST120) and the step of detecting the water supply flow rate by the flow meter 120 in a state in which the washing water is filled inside the air brake 100 (ST130), and calculates the water supply amount per rotation of the flow meter 120 Step ST140 and calculating the rotation speed of the flowmeter 120 according to the amount of washing water required for washing with the calculated amount of water per rotation of the flowmeter 120 is performed.

Here, in the detection step (ST110) of detecting a state in which the washing water is filled in the air brake 100, when the washing water is supplied to the inside of the air brake 100, the outlet valve 131 is operated by the operation of the low water detection sensor 210. Is turned off to prevent the washing water supplied into the air brake 100 from being supplied to the water softener 160, and when the washing water is filled inside the air brake 100, the inlet is activated by the operation of the high sensor sensor 220. The valve 111 is turned off to block water supply.

In addition, the step ST120 of detecting the feed water flow rate includes rotating the impeller 121 of the flowmeter 120, and the hall sensor 122 attached to the outside of the flowmeter 120 by the impeller ( And outputting a rotation frequency of 121).

That is, when the impeller 121 is rotated by the wash water supplied through the flowmeter 120, the hall sensor 122 attached to the one side is to output the rotation frequency of the impeller 121.

At this time, in order to supply the correct amount of washing water into the dishwasher, the water supply amount per rotation of the flowmeter 120 must be calculated.                     

The step of calculating the water supply amount per rotation of the flow meter 120 is calculated by dividing the volume of the air brake 100 by the rotation frequency of the flow meter 120 in the state where the air brake 100 is full of washing water. .

With the water flow rate per one rotation of the flowmeter calculated as described above, the flowmeter's rotation frequency is recalculated for the required amount of washing water, and the impeller is rotated as much as the rotation frequency.

For example, when the washing and rinsing stroke inside the dishwasher, a water supply control method for supplying the required amount of washing water is described in more detail.

It is assumed that the volume of the air brake 100 is 3 liters, and that the required amount of water required for the washing stroke is 2.5 liters.

First, the washing water is supplied to the air brake 100 to determine the rotation frequency of the projector in a state in which the washing water is filled in the air brake 100, that is, in a state in which 3 liters of washing water is filled in the air brake 100.

At this time, the rotation frequency of the flowmeter 120 is a hall sensor (the number of revolutions until the impeller 121 installed in the flowmeter 120 is supplied to the air brake 100 of the 3 liters of washing water) 122 is input and calculated by a microcomputer (not shown).

Next, when the same rotational frequency for supplying the three liters of washing water is 250, dividing the three liters by 250 calculates the amount of water supplied per rotation of the flow meter 120.

In this case, since the water supply per rotation of the flowmeter 120 is about 12cc and the amount of washing water required for washing is 2.5 liters, dividing 2.5 by 12 divides the rotation frequency of the flowmeter 120 to supply the amount of water required for the washing stroke. Can be calculated.

At this time, the rotation frequency of the flowmeter 120 is 208.3.

That is, if the rotation frequency of the flow meter 120 is 208.3 in order to supply the amount of water required for the washing stroke, the correct amount of washing water can be supplied into the washing machine through the air brake 100.

As described above through the above example, according to the embodiment of the present invention, the washing water and the rinsing stroke of the dishwasher, it is possible to prevent the washing water is supercharged or insufficiently watered by providing the required amount.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

The dishwasher according to the present invention described above has the following effects.

First, according to the present invention, the air brake assembly of the dishwasher and the water supply control method through the dishwasher have the effect of supplying the correct amount of washing water in the dishwasher during the washing and rinsing stroke.

Second, according to the present invention, as the correct amount of the washing water is supplied into the dishwasher, it has an effect of preventing the supercharged water or insufficient water supply.

Accordingly, it is possible to prevent waste of the washing water and to obtain an advantageous effect in terms of power consumption.

Claims (7)

An air brake having a water supply lake to which washing water flows into one side of the bottom portion, and a water softening device connection lake for sending the water to the water softener to the other side thereof; A flow meter installed at a side of the water supply lake to detect a flow rate of the washing water supplied into the air brake; And, And a water level sensing means provided in the air brake to sense the level of the washing water supplied into the air brake. The method of claim 1, An impeller rotated by the washing water supplied to the inside of the flow meter is installed, the air brake assembly of the dishwasher, characterized in that the one side is provided with a Hall sensor for detecting the low frequency of one of the repeller. The method of claim 1, The water level detecting means A low water level sensor provided at a bottom of the air brake to detect a state in which the washing water is supplied into the air brake; And a high water level sensor provided at an upper portion of the air brake to sense a state in which the washing water is filled inside the air brake. Feeding stage to supply wash water into the air brake: A sensing step of detecting a state in which the washing water is filled in the air brake; Determining the water supply flow rate by the flow meter while the washing water is filled inside the air brake: Calculating a water supply amount per one rotation of the flow meter; Computing the number of revolutions of the flow meter according to the amount of washing water required for washing with the calculated amount of water per one rotation of the transmitter: water supply control method of the dishwasher, characterized in that performed. The method of claim 4, wherein In the detection step When the wash water is supplied to the inside of the air brake, the outlet valve is turned off by the operation of the low water sensor to prevent the wash water supplied to the inside of the air brake from being supplied to the water softener. When the washing water is filled in the air brake, the step of shutting off the water supply by turning off the inlet valve by the operation of the sensor of high water: the water supply control method of the dishwasher, characterized in that performed. The method of claim 4, wherein The step of detecting the feed water flow rate is a step of rotating the impeller of the flow meter by the washing water, And a Hall sensor attached to the outside of the flow meter to output a rotation frequency of the impeller. The method of claim 4, wherein Calculating the water supply per one rotation of the flow meter A water supply control method for a dishwasher, characterized in that the volume of the air brake is calculated by dividing the volume of the air brake by the rotation frequency of the flowmeter measured while the water is full of washing water.

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