KR20150009402A - Dishwasher - Google Patents

Abstract

Disclosed is a dishwasher having the improved structure capable of enlarging a spray range of washing water. The dishwasher includes a body, a washing reservoir disposed in the body and receiving dishes, and at least one spraying device positioned in the washing reservoir to wash the dishes in the washing reservoir, and configured to spray while being rotated. The spraying device has a rotor rotated around a rotation shaft and having a flow path therein, a plurality of spray nozzles provided in the rotor to spray washing water, and a plurality of guide portions provided at an outer side of the rotor to be opposite to the spray nozzles in order to move along the flow path to spread the washing water sprayed toward the dishes.

Description

Dishwasher {DISHWASHER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dishwasher, and more particularly, to a dishwasher having an improved structure in which washing water is sprayed while spreading to increase efficiency of washing.

A dishwasher is a device that automatically cleans food waste from dishes, cutlery, and various cooking utensils (hereinafter referred to as "tableware") using detergents and washing water.

Generally, a dishwasher includes a main body having a washing tank therein, a rack assembly detachably arranged in the washing tank, and a spraying device for spraying washing water. In the rack assembly, the tableware is stored, and the washing water sprayed from the spray device cleans the tableware.

The injection device is capable of rotating the spraying of washing water while rotating in a fixed position, and of a linear spraying method of spraying water linearly.

In general, the spray nozzle provided in the spray device for spraying wash water has a cylindrical shape.

The washing water sprayed from the cylindrical spray nozzle has a narrow diffusion range, and the washing water can not be uniformly sprayed on the dishware.

One aspect of the present invention provides a dishwasher having an improved structure for widening the jetting range of the washing water.

Another aspect of the present invention provides a dishwasher having an improved structure for varying the spraying angle of the washing water.

A dishwasher according to an aspect of the present invention includes a main body, a cleaning tank disposed inside the main body and containing a tableware, at least one cleaning tank disposed inside the cleaning tank for cleaning the tableware inside the cleaning tank, A plurality of injection nozzles provided in the rotor for spraying wash water, and a plurality of spray nozzles arranged in the rotor so as to be sprayed toward the tableware, And a plurality of guide portions provided on the outer side of the rotor so as to face the injection nozzles.

The injection nozzle may be provided on at least one side surface along the circumference of the rotor.

The guide portion may be coupled to at least one side surface along the circumference of the rotor, and may rotate integrally with the rotor.

In addition, the guide portion may be spaced apart from the injection nozzle, and the degree of separation may vary according to the plurality of injection nozzles.

The angle of the guide part coupled to the rotor according to the plurality of injection nozzles may vary.

The injection nozzle may be provided with a spray hole for spraying wash water.

Wherein the guide portion is provided on a first surface facing the spray nozzle so as to be widely dispersed in the spray hole and bent at a direction away from the spray nozzle and at one end of the first surface, And a rib having a fastening hole to be engaged with the rib.

The first surface may extend upward or downward so that the wash water is sprayed toward the tableware.

At least one slit may be formed in at least one of the plurality of guide portions to provide a driving force for rotating the rotor.

The intensity of the washing water sprayed from the spray nozzle toward the guide portion may be varied so as to provide a driving force for rotating the rotor.

The plurality of guide portions may be formed integrally with at least one of the rotor and the plurality of injection nozzles.

A dishwasher according to an aspect of the present invention includes a main body, a cleaning tank disposed inside the main body and containing a tableware, at least one cleaning tank disposed inside the cleaning tank for cleaning the tableware inside the cleaning tank, A plurality of injection nozzles provided on a side surface of the rotor along the periphery of the rotor so as to spray wash water and a plurality of discharge nozzles provided on the side of the rotor, And a plurality of guide portions rotatably engaged with the spray nozzles so that the spray nozzles can be widely spread at various angles.

By providing a guide portion facing the spray nozzle, the spraying range of the wash water is widened, thereby improving the cleaning efficiency.

By joining the guide portion to the injection nozzle at various angles, it is possible to vary the injection angle of the washing water in various ways, thereby improving the washing performance.

1 is a sectional view showing the configuration of a dishwasher according to an embodiment of the present invention;
2 is a perspective view showing a first injecting apparatus of a dishwasher according to an embodiment of the present invention;
3 is an exploded perspective view showing a first injecting apparatus of a dishwasher according to an embodiment of the present invention.
FIG. 4 is an enlarged view of a part of a first injecting apparatus provided in a dishwasher according to an embodiment of the present invention; FIG.

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

1 is a sectional view showing the configuration of a dishwasher according to an embodiment of the present invention.

1, the dishwasher 100 includes a main body 101 having an outer appearance, a washing tank 103 provided inside the main body 101 to form a washing space for the tableware, And a sump 140 provided in the sump to store wash water.

The front surface of the main body 101 is open to receive dishes in the washing tub 103 or draw out the dishes from the washing tub 103. The lower end of the main body 101 is hinged to the lower part of the front surface of the main body 101 and is rotated to provide a door 102 for opening and closing the washing tub 103. At one side of the door 102, a detergent box (not shown) for supplying detergent to the inside of the washing tub 103 is located.

The washing tub 103 is provided with a pair of dish baskets 104 which are open on the upper side and provided with a receiving section for receiving dishes, The table baskets 104 are drawn out and stored through the front surface of the main body 101 which is opened by at least one rack 105 that slidably supports the table baskets 104.

The dish baskets 104 are formed by wires arranged in a lattice shape so that the tableware housed therein is exposed to the outside to be cleaned.

At least one spraying device (120, 130, 200) is installed in the washing tub (103) for spraying wash water on the top, bottom and center of the two dish baskets (104) so as to wash the dishes contained in the basket (104). The at least one spraying device 120,130,200 includes a first injector 200 positioned between the upper table baskets 104a and the lower table baskets 104b, a second injector 200 located below the lower table baskets 104b, 120). In addition, it may further include a third injector 130 located above the upper dish basket 104a.

According to an embodiment of the present invention, the first injecting device 200, the second injecting device 120, and the third injecting device 130 are installed to be rotatable about a rotation axis, .

A heater 144 for heating the washing water and a heater mounting groove 145 may be formed in the washing tub 103. A heater mounting groove 145 is provided on the bottom of the washing tub 103 and a heater 144 is mounted on the heater mounting groove 145.

The sump 140 is provided at the bottom center of the washing tub 103 and is configured to collect and pump washing water. The sump 140 includes a washing pump 142 for pumping washing water to a high pressure and a pump motor 141 for driving the washing pump 142.

The cleaning pump 142 pumps the washing water to the third injecting device 130 located on the upper side through the first supplying pipe 106 and supplies the washing water to the third injecting device 130 through the second supplying pipe 108 branched from the first supplying pipe 106 1 < / RTI > And the washing water is pumped through the third supply pipe 109 to the third injection device 130 located at the lower side.

The sump 140 may include a turbidity sensor (not shown) for detecting the degree of contamination of the washing water. A controller (not shown) of the dishwasher 100 can detect the degree of contamination of the washing water using a turbidity sensor (not shown) and control the number of times of washing or rinsing. That is, if the degree of contamination is high, the washing or rinsing step may be increased, and if the degree of contamination is low, the washing or rinsing step may be decreased.

 FIG. 2 is a perspective view illustrating a first injection device of a dishwasher according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view illustrating a first injection device of a dishwasher according to an embodiment of the present invention.

As shown in FIGS. 2 and 3, the first injector 200 is configured to rotate and inject wash water. The first injector 200 includes a rotor 210 configured to be rotatable about a rotational axis. The rotor 210 is coupled to the second supply pipe 108 to receive washing water. The other side of the second supply pipe 108 is connected to the first supply pipe 106 to receive the wash water from the first supply pipe 106. A coupling portion 107 may be positioned between the first supply pipe 106 and the second supply pipe 108.

At least one side surface of the rotor 210 may be provided with a plurality of spray nozzles 211a through which wash water is sprayed. If the number of the injection nozzles 211a is too large, the water pressure of the washing water may become weak and the injection may not be performed properly. Therefore, it is preferable that a plurality of the injection nozzles 211a are provided within the limit of the water pressure of the washing water. The rotor 210 may include an upper rotor 211 located on the upper side and a lower rotor 215 located on the lower side. The upper rotor 211 and the lower rotor 215 can be fastened by ultrasonic welding.

The dishwasher 100 may include at least one engaging member for engaging the first supply device 200 with the second supply pipe 108. The first coupling member 203 is coupled to the outside of the second supply pipe 108 and the rotor 210 to couple the second supply pipe 108 and the rotor 210 together.

A second engaging member 202 is positioned between the first engaging member 203 and the rotor 210 to couple the first engaging member 203 and the rotor 210 in a hook engagement manner.

A buffer member 204 may be disposed between the second engagement member 202 and the lower rotor 215 to reduce friction generated when the rotor 210 rotates in contact with the second supply pipe 108 . The buffer member 204 guides smooth rotation of the rotor 210.

The upper rotor 211 and the lower rotor 215 are combined to constitute the rotor 210. In the rotor 210, a flow path through which the washing water injected from the rotor 210 moves is provided.

A guide part 220 facing the plurality of injection nozzles 211a may be provided on the outer side of the rotor 210. [ The guide part 220 guides the washing water so that the washing water moving along the flow path can be widely sprayed toward the dishware.

The guide part 220 may be coupled to the rotor 210 or the injection nozzle 211a.

The guide part 220 may be formed integrally with at least one of the rotor 210 and the plurality of injection nozzles 211a.

The guide part 220 faces the injection nozzle 211a and one guide part 220 may be provided to correspond to at least one injection nozzle 211a.

The degree of the gap between the guide part 220 and the injection nozzle 211a may vary according to the injection nozzle 211a.

The less the degree of separation between the guide part 220 and the spray nozzle 211a is, the stronger the intensity of the wash water sprayed from the spray nozzle 211a is. On the other hand, the greater the degree of separation between the guide part 220 and the spray nozzle 211a, the weaker the intensity of the wash water sprayed from the spray nozzle 211a is.

Also, the size of the guide part 220 may vary. The longer the length of the guide portion 220 in the longitudinal direction of the rotor 210, the wider the spraying range of the washing water sprayed from the spraying nozzle 211a. On the other hand, the shorter the length of the guide part 220 in the longitudinal direction of the rotor 210, the narrower the spraying range of the washing water sprayed from the spraying nozzle 211a becomes. The higher the height of the guide part 220, the higher the cleaning water can be guided.

In addition, the guide part 220 can be engaged with the rotor 210 or the injection nozzle 211a at various angles. By varying the angle of engagement of the guide part 220, the spraying angle of the washing water can be variously adjusted. As a result, a space in which washing water does not reach the dishwasher 100 can be reduced.

A separate jet port (not shown) may be provided on the surface of the upper rotor 211 or the lower rotor 215 to provide a driving force for rotating the rotor 210. The rotor 210 can be rotated by the water pressure of the washing water injected from the injection port (not shown).

At least one slit 223 is formed in the guide part 220 so that the rotor 210 can be rotated by the water pressure of the washing water sprayed through the slit 223. The slits 223 may be formed in at least one guide portion 220.

In addition, by varying the intensity of the washing water sprayed from the spraying nozzle 211a toward the guide portion 220, it is possible to provide a driving force that allows the rotor 210 to rotate. In order to vary the intensity of the washing water, the size of the spray hole 212 provided in the spray nozzle 211a may be varied. More specifically, as the size of the injection hole 212 is larger, the strength of the washing water becomes weaker, and as the size of the injection hole 212 becomes smaller, the strength of the washing water becomes stronger.

FIG. 4 is an enlarged view of a part of a first injector provided in a dishwasher according to an embodiment of the present invention. FIG.

As shown in FIG. 4, the injection nozzle 211a is provided with a spray hole 212 for spraying wash water. The size of the injection hole 212 may vary according to the injection nozzle 211a.

The guide portion 220 may include a first surface 221 and a rib 222.

The first surface 221 may be bent in a direction away from the spray nozzle 211a as a portion facing the spray nozzle 211a so that the wash water sprayed from the spray hole 212 may spread widely.

The first surface 221 may extend upward or downward of the dishwasher 100. Specifically, when the first surface 221 of the guide unit 220 installed in the first injector 200 extends upward, the washing water is supplied to the upper dish baskets (not shown) positioned above the first injectors 200 When the first surface 221 of the guide portion 220 is extended downward, the washing water is sprayed onto the lower tableware basket 104b located below the first injector 200. As a result,

The first surface 221 of the guide part 220 is provided with a rib 222 which can be engaged with the spray nozzle 211a. The rib 222 may be installed at the end of the first surface 221 of the guide 220 near the injection nozzle 211a. The fastening hole 222a formed in the rib 222 is fitted into the injection nozzle 211a so that the guide part 220 is coupled to the injection nozzle 211a.

The degree of bending of the first surface 221 may vary according to the guide portion 220.

The guide part 220 may be fixed to the injection nozzle 211a or the rotor 210 with an adhesive or a screw.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

100: dishwasher 101: main body
102: Door 103: Washing tank
104: dish basket 104a: upper dish basket
104b: Lower tableware basket 105 (105a, 105b): rack
106: first supply pipe 107:
108: second supply pipe 109: third supply pipe
120: second injector 130: third injector 140: sump 141: pump motor
142: Cleaning pump 144: Heater
145: installation groove 200: first injection device
202: second coupling member 203: first coupling member
204: buffer member 210: rotor
211: upper rotor 215: lower rotor
211a: injection nozzle 212: injection hole
220: guide part 221: first side
222: rib 222a: fastening hole
223: Slit

Claims (11)

main body;
A washing tub disposed inside the main body and receiving the dishware; And
And at least one spraying device located inside the washing tub for washing the dishware inside the washing tub and configured to rotate and spray washing water,
Wherein the injection device comprises:
A rotor configured to be rotatable about a rotation axis, the rotor having an oil passage therein;
A plurality of spray nozzles provided in the rotor to spray wash water; And
And a plurality of guide portions provided on the outer side of the rotor so as to face the spray nozzles so that the washing water which moves along the flow path and is sprayed toward the dishware can be widely spread. The method according to claim 1,
Wherein the spray nozzle is provided on at least one side surface along the circumference of the rotor. The method according to claim 1,
Wherein the guide portion is coupled to at least one side surface along the circumference of the rotor and rotates integrally with the rotor. The method of claim 3,
Wherein the guide portion is spaced apart from the spray nozzle, and the degree of spacing varies according to the plurality of spray nozzles. The method of claim 3,
Wherein the guide part has a plurality of angles coupled to the rotor according to the plurality of injection nozzles. The method according to claim 1,
Wherein the injection nozzle is provided with a spray hole for spraying wash water,
Wherein the guide portion has a first surface facing the spray nozzle and bent in a direction away from the spray nozzle such that wash water sprayed from the spray hole is dispersed widely; And
And a rib provided at one end of the first surface and having a fastening hole coupled to the spray nozzle. The method according to claim 6,
Wherein the first surface extends upward or downward so that the washing water is sprayed toward the dishware. The method according to claim 1,
Wherein at least one slit is formed in at least one of the plurality of guide portions to provide a driving force for rotating the rotor. The method according to claim 1,
Wherein a strength of washing water sprayed toward the guide portion from the spray nozzle is varied so as to provide a driving force for rotating the rotor. The method according to claim 1,
Wherein the plurality of guide portions are formed integrally with at least one of the rotor and the plurality of injection nozzles. main body;
A washing tub disposed inside the main body and receiving the dishware; And
And at least one spraying device located inside the washing tub for washing the dishware inside the washing tub and configured to rotate and spray washing water,
Wherein the injection device comprises:
A rotor configured to be rotatable about a rotation axis, the rotor having an oil passage therein;
A plurality of spray nozzles provided on a side of the rotor along the circumference of the rotor to spray wash water; And
And a plurality of guide portions rotatably engaged with the spray nozzle so that wash water can be spread widely at various angles.

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