KR102129315B1 - Dish Washing Machine - Google Patents

Abstract

The present invention relates to a dishwasher having a structure capable of spraying washing water evenly inside a washing tank.
One aspect of the present invention is provided in a cabinet forming a facade, a cabinet, a washing tank in which dishes are washed, a washing basket provided in the washing tank, a dish basket for storing dishes, a spray unit spraying washing water into the washing tank, and washing water sprayed from the spray unit Dishwasher characterized in that it comprises at least one guide member coupled to one side of the conversion unit, the conversion unit is provided inside the path of the washing water sprayed to switch the ?? of the conversion unit, so that the conversion unit can move inside the washing tank Provide a washer.
According to an embodiment of the present invention, since it includes a switching unit in addition to the injection unit, it is possible to divide and intensively wash in the washing tank while removing the blind spot that the washing water cannot reach.

Description

Dishwasher{Dish Washing Machine}

The present invention relates to a dishwasher, and more particularly, to a dishwasher having a structure capable of spraying washing water evenly inside the washing tank.

In general, the dishwasher is a device for washing dishes by spraying high-pressure washing water onto the dishes, and is usually subjected to preliminary washing, main washing, rinsing, and drying steps. In the preliminary washing step, the washing water is sprayed without detergent input to remove the debris of the tableware, and in this washing process, washing of the tableware is performed by spraying the washing water and simultaneously introducing detergent by the detergent supply device.

In general, the dishwasher is equipped with a cabinet with a washing tank inside, a pump that generates washing water pressure, a dish basket that holds dishes, and is installed to move back and forth inside the washing tank, and an injection unit that sprays washing water with the dish basket. , A connecting oil connecting the pump and the injection unit, and includes a flow path switching valve for selectively moving the washing water from the pump to the plurality of injection units, and the washing water sprayed from the injection unit washes the dishes.

The dish basket includes an upper dish basket provided at an upper part of the washing tank and a lower dish basket provided at a lower part.

Conventionally, the spraying unit was located above and below the upper dish basket and above the lower dish basket. When the spray unit is provided to rotate, a blind spot in which the spray water to be sprayed does not reach occurs at the edge of the washing tank provided in a square shape.

In order to prevent blind spots from reaching the washing water, a structure has been proposed in which the length of the injection unit is changed to rotate. This can prevent the occurrence of blind spots where the washing water cannot reach, but in the structure of rotating the injection unit due to the reaction of the injection water pressure, it was not possible to obtain a washing effect by dividing or concentrating only a specific area.

In addition, a structure has been proposed in which an injection unit, a drive unit for linearly moving the injection unit, and a flow path connecting the injection unit and the pump are connected using a link or a flexible hose. However, this has a problem that the pressure loss of the flow path is large and the durability of the flow path is weak.

In addition, when the spraying unit is fixed to the dish basket, the flow passage is inefficiently arranged, resulting in a large flow loss, and the structure of the dish basket is complicated.

One aspect of the present invention includes a spray unit for spraying washing water into a dish basket, and a switching unit provided to change the direction of the washing water sprayed from the spray unit, thereby preventing the blind area from reaching the washing water from occurring in the washing tank. A dishwasher that can be used is provided.

One aspect of the present invention is a cabinet forming an exterior; A washing tank provided in the cabinet and washing the dishes; A dish basket provided in the washing tank and storing dishes; An injection unit that sprays washing water into the washing tank; A switching unit provided inside the path of the washing water sprayed to change the direction of the washing water sprayed from the spraying unit; It provides a dishwasher comprising a; at least one guide member coupled to one side of the conversion unit so that the conversion unit can be moved inside the washing tank.

The switching unit may be provided on at least one side of the upper, lower, or side surfaces of the dish basket to switch the direction of the washing water sprayed from the spray unit to the dish basket direction.

The switching unit may include at least one concave portion in which at least a portion of a surface contacting the washing water is concave to convert the direction of the washing water sprayed from the spraying unit to the dish basket direction.

The concave portion may be provided in a curved shape to change the direction of the washing water.

The concave portion may include at least one bent portion that is bent in the longitudinal direction of the conversion unit to divert and spray the washing water in various directions.

At least one of a plurality of grooves or protrusions for guiding the direction change of the washing water may be provided inside the recess.

At least one of the grooves or protrusions may be provided only in a part of the recess so that the direction of the washing water is guided toward the tableware.

A pattern for changing the direction of the washing water may be provided on one surface of the conversion unit in contact with the washing water.

At least a portion of the switching unit may be provided with at least one slit for preventing contaminants from accumulating in the switching unit.

An opening for preventing contaminants from accumulating may be formed on the lower surface of the guide member.

Movement of the switching unit in the washing tank may be moved by the injection pressure of the washing water sprayed from the injection unit.

A power generating device that drives the switching unit to move the switching unit in the washing tank may be further included.

Further comprising a pulley or gear coupled to the power generating device, the pulley and the switching unit may be connected through a connecting member.

The guide member may be provided on the inner surface of the washing tank to guide the movement of the switching unit.

The guide member is located inside the washing tank and can be coupled to the conversion unit to support the center of the conversion unit.

The guide member may be provided on at least a portion of the dish basket to be formed without additional components.

The guide member may be provided on at least a portion of the inner surface of the washing tank to be formed without additional components.

The switching unit may be coupled to the guide member to be rotated at an angle.

The injection unit may be fixed to at least one of the inner wall surface of the washing tank.

The spraying unit includes at least one head group consisting of at least one head for spraying washing water, and each head group may selectively spray washing water.

The injection of the washing water of the head group may be sprayed such that at least one element of the injection pressure, the temperature of the washing water, and the injection time is different for each of the head groups.

The at least one head may be arranged to be inclined upward in order to cause the washing water to be sprayed over a certain distance.

The injection unit may further include a flow path switching valve to selectively control the injection of the washing water of the head group.

The concave portion may include a first step portion and a second step portion provided to be stepped with each other.

The spraying unit includes at least one head for spraying washing water, the concave portion includes at least one region corresponding to each head, and the regions have different curvatures such that washing water is discharged at different angles. Can.

The switching unit may further include a direction changing member that changes a moving direction to move in a first direction and a second direction different from the first direction.

Another aspect of the present invention is a dishwasher including a dishwasher for washing dishes and a dish basket for storing dishes located inside the dishwasher, wherein the dishwasher is located on at least one side of the upper or lower side of the dish basket. At least one spraying unit spraying washing water in a direction; It provides a dishwasher comprising a; switching unit for switching the direction of the washing water so that the washing water sprayed from the spraying unit can switch the flow path in the second direction of the dish basket direction.

The conversion unit may include a concave portion recessed to convert the direction of the washing water from the first direction to the second direction.

The switching unit may include a driving unit for driving the front and rear or left and right or upper and lower surfaces of the washing tank to be movable.

The driving unit is coupled to the switching unit and at least one guide member for guiding the movement of the switching unit, a power generating device for driving the switching unit, a pulley or gear coupled to the power generating device, and It may include a connecting member for connecting the pulley or gear and the switching unit.

When the switching unit moves in the direction of the injection unit, it is moved by a power generating device, and when the switching unit moves away from the injection unit, it can be moved by the water pressure of the washing water sprayed to the injection unit.

The injection unit is disposed to face each other inside the washing tank, and the switching unit may include a plurality of recesses disposed to face each injection unit.

The conversion unit is provided in an upward direction of the dish basket, and the recess is disposed to face the dish basket to switch the flow path of the washing water to ?? of the dish basket.

The switching unit is provided along a shape of one surface of the dish basket adjacent to the switching unit, and the spraying unit may be disposed to correspond to the shape of the switching unit.

According to an embodiment of the present invention, since a switching unit is included in addition to the injection unit, the blind spot that the washing water does not reach can be removed. In addition, due to the reciprocating motion of the switching unit, the spraying pattern of the washing water may be changed linearly to increase the spraying efficiency, and the position of the switching unit may be controlled to enable split spraying or intensive spraying in the dish basket. In addition, it is possible to save energy and improve washing efficiency due to low flow path loss.

1 is a cross-sectional view showing the configuration of a dishwasher according to an embodiment of the present invention.
2 is a cross-sectional view showing the configuration of a dishwasher according to another embodiment of the present invention.
3 is a perspective view showing some components of a dishwasher according to another embodiment of the present invention.
4 is a perspective view showing an injection unit and a switching unit of a dishwasher according to an embodiment of the present invention.
5 is a plan view showing a spray unit and a switching unit of the dishwasher according to an embodiment of the present invention.
6 is an enlarged view showing a main configuration of the present invention and a direction in which washing water is sprayed.
7 is an enlarged perspective view of A of FIG. 6.
8 is a conceptual view schematically showing a flow path of an injection unit according to another embodiment of the present invention.
9 is a perspective view showing a flow path switching valve when all of the injection units according to another embodiment of the present invention are operated.
10 is a perspective view showing a flow path switching valve when the injection unit according to another embodiment of the present invention is partially operated.
11 is a perspective view showing an injection unit according to another embodiment of the present invention.
12 is a perspective view showing a flow path switching valve when the injection unit shown in FIG. 11 is partially operated.
13 is a perspective view showing a flow path switching valve when the injection unit illustrated in FIG. 11 is partially operated.
14 is a plan view showing an injection unit and a switching unit according to another embodiment of the present invention.
15 is a view showing a switching unit according to another embodiment of the present invention.
16 is a view showing a state before the switching unit according to another embodiment of the present invention contacts the locking member.
17 is a view showing a state after the switching unit according to another embodiment of the present invention contacts the locking member.
18 is a perspective view showing a state before the switching unit according to another embodiment of the present invention contacts the locking member.
19 is a perspective view showing a state after the switching unit according to another embodiment of the present invention contacts the locking member.
20 is an enlarged perspective view showing another switching unit according to an embodiment of the present invention.
21 is an enlarged perspective view showing a conversion unit according to another embodiment of the present invention.
22 is an enlarged perspective view showing a switching unit according to another embodiment of the present invention.
23 is an enlarged perspective view showing a switching unit according to another embodiment of the present invention.
24 is a cross-sectional view showing a cross-section of a switching unit according to another embodiment of the present invention.
25 is a view showing a switching unit according to another embodiment of the present invention.
26 is a view showing a cross-section of a switching unit according to another embodiment of the present invention.
27 is a view showing a spray unit and a switching unit of the dishwasher according to another embodiment of the present invention.
28 is a view showing a switching unit according to another embodiment of the present invention.
29 is a cross-sectional view showing a switching unit according to another embodiment of the present invention.
30 is a view showing a switching unit according to another embodiment of the present invention.
31 is a view showing a switching unit according to another embodiment of the present invention.
32 is a cross-sectional view showing the configuration of a dishwasher according to another embodiment of the present invention.
33 is a view showing a part of a dishwasher according to another embodiment of the present invention.
34 is a view showing a part of a dishwasher according to another embodiment of the present invention.
35 is a view schematically showing the movement of the switching unit of the dishwasher according to another embodiment of the present invention.
36 is a view showing the conversion unit shown in FIG. 35 in detail.
37 is a view showing the switching unit shown in FIG. 36 from another angle.
38 is a view showing a part of a dishwasher according to another embodiment of the present invention.
39 is a view showing a part of a dishwasher according to another embodiment of the present invention.
40 is a view showing a part of a dishwasher according to another embodiment of the present invention.

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

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

As shown in FIG. 1, the dishwasher 100 includes a cabinet 101 forming an exterior and a washing tank 103 provided inside the cabinet 101 to wash dishes. The lower part of the washing tank 103 includes a sump 143 in which washing water is stored.

The front surface of the cabinet 101 is opened to store dishes in the washing tank 103 or to take out the dishes from the washing tank 103, and the door 102 is installed to open and close the washing tank 103. The door 102 is hinged to the lower front of the cabinet 101 and rotates to open and close the washing tank 103.

In the washing tank 103, a pair of dish baskets 104 having an opening portion on which an upper side is opened to accommodate dishes is provided to move forward and backward in the upper and lower portions of the washing tank 103. The tableware basket 104 is pulled out and received through the front surface of the cabinet 101 opened by at least one rack 105 that slidably supports the tableware basket 104.

The dish basket 104 is formed by wires arranged in a lattice shape so that dishes stored therein can be exposed and washed outside the dish basket 104.

At least one surface of the washing tank 103 is equipped with an injection unit 110 for spraying washing water into the dish basket 104. The spraying unit 110 may include an upper spraying unit 110a and a lower spraying unit 110b to spray water to the upper dish basket 104a and the lower dish basket 104b, but is not limited thereto. no.

The injection unit 110 is provided to spray the washing water into the washing tank 103. The spraying unit 110 is provided on at least one surface of the washing tank 103 and may be provided to spray water in at least one of lower, upper, and side surfaces of the dish basket 104. The injection unit 110 may be provided to be fixed to at least one surface of the washing tank 103. The spray unit 110 may be located at or below the bottom height of the dish basket 104 in which the object to be cleaned is stored. Water may be sprayed toward the opposite direction to where the spray unit 110 is located. The spraying unit 110 may spray water so that one or more primary water jets are formed in a direction substantially parallel to the bottom of the dish basket 104.

A conversion unit 120 for changing the direction of the washing water sprayed from the injection unit 110 is provided in the washing tank 103. The conversion unit 120 is provided inside the path of the washing water to be sprayed to change the direction of the washing water. The direction of the washing water sprayed from the injection unit 110 is defined as a first direction, and the direction of the washing water converted by the switching unit 120 is defined as a second direction. For example, the switching unit 120 may be provided to face the injection unit 110. When the spray unit 110 is provided to spray water to the bottom of the dish basket 104, the conversion unit 120 may be located at the bottom of the dish basket 104. The switch unit 120 is a dish basket ( 104) may be located outside to perform a linear motion in a direction away from the injection unit 110 or a direction closer to the injection unit 110. The primary water jet sprayed from the spraying unit 110 is sprayed toward the conversion unit 120, and the direction is switched by the conversion unit 120 toward the tableware located in the dish basket 104 2 By forming a tea water jet, it is possible to wash dishes using a substantially second water jet. For example, the injection unit 110 is mounted on the back of the washing tank, the switching unit 120 may be located in a direction parallel to the injection unit 110. The switching unit 120 may move in a linear reciprocating direction away from a direction close to the injection unit 110 or vice versa.

Further, the dishwasher 100 may include a driving unit for driving the switching unit 120 to be movable in the washing tank 103. The driving unit may include a guide member 131 coupled to the switching unit 120 and a power generating device 135 and a pulley 134 for driving the switching unit 120. In addition, the driving unit may include a connecting member 133 connecting the pulley 134 and the switching unit 120. This will be described later.

The washing tank 103 may be provided with a heater 144 for heating the washing water and a heater installation groove 145. A heater installation groove 145 is provided at the bottom of the washing tank 103, and a heater 144 is installed in the heater installation groove 145.

The sump 143 is provided at the center of the bottom of the washing tank 103 and is configured to collect and pump the washing water. The sump 143 includes a washing pump 142 for pumping washing water at a high pressure, and a pump motor 141 for driving the washing pump 142. In addition, a drain pump 146 for draining the washing water is provided at the bottom of the washing tank 103.

The washing pump 142 pumps the washing water to the upper injection unit 110a through the first supply pipe 106 and the washing water to the lower injection unit 110b through the second supply pipe 108. In the drawing, the first supply pipe 106 and the second supply pipe 108 are illustrated as separately coupled to the sump 43, but are not limited thereto. That is, the first supply pipe 106 and the second supply pipe 108 may be provided to be branched from one pipe. In the case of the first supply pipe 106, it is connected to the connecting portion 107, and the connecting portion 107 can be connected to the injection unit 110.

The sump 143 may include a turbidity sensor (not shown) that detects the degree of contamination of the washing water. The control unit (not shown) of the dishwasher 100 may detect the degree of contamination of the washing water by using a turbidity sensor (not shown), and control the number of times the washing step or the rinsing step proceeds. That is, the washing or rinsing step may be increased when the degree of contamination is high, and the washing or rinsing step may be reduced when the degree of contamination is low.

The switching unit 120 may be combined with a driving unit that drives the switching unit 120 to be movable in the washing tank 103. The driving unit may include at least one guide member 131 coupled to one side of the switching unit 120 to guide the movement of the switching unit 120. According to an embodiment of the present invention, the guide member 131 may be provided with a rail, but is not limited thereto. For example, the guide member may be formed on at least a portion of the dish basket 104 without additional components, and the guide member may be formed on at least a portion of the inner surface of the washing tank 103 without additional components. The roller 132 of the switching unit 120 is coupled to the guide member 131 of the drive unit, and is movable between the front and rear surfaces of the washing tank 103 along the guide member 131. The guide member 131 of the drive unit is coupled to both side walls 103a and 103b of the washing tank 103. The motor 135 for driving the switching unit 120 is combined with the pulley 134. The pulley 134 is connected to the switching unit 120 through a connecting member 133. The connecting member 133 may be a wire rope or an elongated string made of carbon. In addition, a belt or ball screw may be used as the connecting member.

When the guide member 131 is coupled to both side walls 103a, 103b of the washing tank 103, a motor 135 for driving the switching unit 120 is installed on one of both side walls 103a, 103b, and each The pulley 134 of the guide member 131 may be driven by being connected through a shaft inside or outside the washing tank 103.

As the power generator 135 is driven, the pulley 134 rotates in one direction to move the switching unit 120 in the direction of the injection unit 110, and the pulley 134 rotates in the other direction to switch the unit 120 ) Can be moved in the opposite direction of the injection unit 110. Alternatively, it is also possible to drive in reverse. In addition, the switching unit 120 may be moved in the opposite direction of the injection unit 110 by the water pressure of the washing water sprayed from the injection unit 110. In this case, since the spraying unit 110 is moved using the washing water, there is an advantage that it is possible to intensively and intensively wash using the switching unit 120 at the same time as washing the dishes. In addition, according to an embodiment of the present invention, it is possible to implement the dishwasher 100 having a simple configuration compared to the conventional one, since the flow path of the driving unit and the washing water need not be directly connected.

Various motors such as an ultrasonic motor and a linear motor may be used as the power generator 135.

In driving the injection unit 110 with the power generator 135, the moving speed of the injection unit 110 may be controlled through the speed control of the power generator 135. The speed control of the power generator 135 can be controlled through a control unit (not shown).

6 is an enlarged view showing a main configuration of the present invention and a direction in which washing water is sprayed, and FIG. 7 is a perspective view showing an enlarged view of FIG. 6A.

6 and 7, the washing water is sprayed from the spraying unit 110 toward the dish basket 104 in the first direction D1. That is, the washing water is sprayed in a direction parallel to the dish basket 104. The washing water contacts the concave portion of the switching unit 120 and is switched in the second direction (D2, D2', D2'') with respect to the dish basket 104. The washing water sprayed in the first direction D1 corresponds to the primary water jet, and the washing water switched in the second direction (D2, D2', D2") corresponds to the secondary water jet. Due to this, the switched secondary water jet may be sprayed in the form of a sheet, and accordingly, may be sprayed in a wide range of dishes.

For example, the angle α of the flow path in which the washing water sprayed from the spraying unit 110 is converted in the second direction through the switching unit 120 is 40° to 140° with respect to the washing water sprayed from the spraying unit 110 Can. Since the direction of the washing water is switched in the vertical direction of the dish basket 104, the dishes 1 and 2 can be washed efficiently. Washing water can be sprayed in various directions depending on the angle of the recess. That is, the washing water may be sprayed at various angles with respect to the dishes 1 and 2. According to the drawing, the direction of the washing water sprayed in the second direction is D2' and D2'' in addition to the D2 direction. Since the dishes in the dish basket 104 can be positioned in various directions in the horizontal (1) or vertical (2) direction, the switching unit 120 can switch the direction of the washing water at various angles. Substantially washing the dishes 1 and 2 is washing water whose direction is changed in the second direction (D2, D2', D2'') by the conversion unit 120. Since the switching unit 120 can be moved to the front or rear of the washing tank 103 by the driving unit, it is possible to intensively and intensively wash dishes in a specific area according to the movement of the switching unit 120.

The head 115 of the injection unit 110 may be provided to be inclined upward from a vertical line forming a right angle to the body 114 of the injection unit 110. The angle β between the vertical line forming the right angle to the body 114 and the head 115 may be 2ㅀ to 5ㅀ. This is to prevent the wash water from falling before reaching a predetermined distance or more because the wash water sprayed from the spray unit 110 falls freely.

<Table 1> below is a table showing the height of the washing water according to the upward inclination angle of the injection unit 110.

Upward tilt angle (°)
Rise height (mm) 3.1mAq 4.0mAq One 1.0 1.2 1.5 2.2 2.7 2 3.8 4.8 2.5 6.0 7.6 3 8.6 10.9 3.5 11.7 14.8 4 15.3 19.3 4.5 19.3 24.5 5 23.8 30.2

As shown in Table 1, as the upward inclination angle β of the head 115 of the injection unit 110 increases, the rising height (mm) of the washing water sprayed increases, and accordingly after the washing water passes a predetermined distance. It will fall freely. If the upward inclination angle (β) is too small, the washing water free-falls quickly, and even if the upward inclination angle (β) is too large, it is necessary to maintain an appropriate inclination angle since it rises to the maximum point and then free-falls quickly. It is preferable that the head 115 of the spraying unit 110 sprays the washing water at an angle within 5 degrees upward, and in this case, while the switching unit 120 reciprocates, the dishes inside the dish basket 104 are evenly washed. Cleaning performance. As in one embodiment of the present invention, when the upward inclination angle β is 2ㅀ to 5ㅀ, the washing water sprayed from the spraying unit 110 even when the switching unit 120 is located farthest from the spraying unit 110 Since it is sufficient to move to the conversion unit 120, it is possible to prevent the free fall of the washing water without being injected to the conversion unit 120. In addition, when the free fall of the washing water occurs rapidly, the size of the switching unit must be increased to change the direction of the washing water. In the case where the head 115 of the injection unit 110 is inclined upward by a certain angle as in one embodiment of the present invention There is no need to increase the size of the conversion unit.

8 is a conceptual view schematically showing a flow path of an injection unit according to another embodiment of the present invention, and FIG. 9 is a perspective view showing a flow path switching valve when all of the injection units according to another embodiment of the present invention are operated. , Figure 10 is a perspective view showing a flow path switching valve when the injection unit according to another embodiment of the present invention is partially operated.

8 to 10, the injection unit 210 according to an embodiment of the present invention may include at least one or more head groups 211 and 212. 8 to 10, the head group includes, but is not limited to, the first head group 211 and the second head group 212.

The first head group 211 is composed of a first head 216a, a second head 216b, and a third head 216c, and the second head group 212 is a fourth head 217a, a fifth head (217b), it may be composed of a sixth head (217c). According to the drawing, each of three heads is formed, but the present invention is not limited thereto. In the first head group 211 and the second head group 212, both the first head group 211 and the second head group 212 are operated by the flow path switching valve 220 so that the washing water is sprayed or only partially operates. Washing water can be sprayed. Operation of the flow path switching valve 220 is controlled by the control unit 230, and accordingly may determine at least one of the injection water pressure, the injection time, and the injection temperature of the washing water. That is, according to the user's selection of the operating mode of the dishwasher, each of the head groups may control at least one factor among injection pressure, injection time, and injection temperature. For example, for a given head group, at least one factor of the injection water pressure, the injection time, and the injection temperature may be set to be high to spray the washing water, and conversely, at least one of the factors may be set to the low to spray the washing water.

The flow path switching valve 220 includes a base portion 222 and a plurality of holes 221a, 221b, and 221c provided in the base portion 222. Whether the washing water is sprayed from the first head group 211 or the second head group 212 is determined according to the positions of the plurality of holes 221a, 221b, and 221c. Inside the first head group 211, a first flow path 213a through which washing water passes is provided, and inside a second head group 212, a second flow path 214a through which washing water passes is provided. When one of the plurality of holes 221a, 221b, 221c of the flow path switching valve 220 is located in the first flow path 213a or the second flow path 214a, the first flow path 213a or the second flow path 214a Is opened and the washing water is sprayed from the first head group 211 or the second head group 212.

When the positions of the plurality of holes 221a, 221b, and 221c are displaced due to the rotation of the base portion 222 of the flow path switching valve 220, the flow paths 213a, 214a are displaced. Is closed.

10, the holes 221a, 221b, and 221c provided in the base portion 222 rotate according to the rotation of the base portion 222 so that the positions of the first flow path 213a and the holes do not match. One flow path 213a is closed. Accordingly, the washing water is not sprayed from the first head group 211, but the washing water is sprayed only from the second head group 212 connected to the opened second flow path 214a. As such, due to the operation of the flow path switching valve 220, it is possible to control such that only a part of the injection unit 210 is operated.

When dishes are placed only in a predetermined area according to the operation of the flow path switching valve 220, the washing water can be sprayed only in the desired area, thereby saving the washing water, and also the spraying water pressure, spraying time, and temperature of the washing water for the desired area. Can be controlled.

11 is a perspective view showing an injection unit according to another embodiment of the present invention, Figure 12 is a perspective view showing a flow path switching valve when the injection unit shown in Figure 11 is partially operated, Figure 13 is Figure 11 It is a perspective view showing a flow path switching valve when the injection unit shown in part is operated.

The embodiment of the present invention shown in FIGS. 11 to 13 differs from the embodiment of the present invention shown in FIGS. 8 to 10 in the position of the flow path switching valve.

It is the same that the washing water sprayed by each head group 240 is controlled by the flow path switching valve 250 is the same. Accordingly, when the positions of the plurality of holes 255a and 255b move due to the rotation of the base portion 255 and the positions of the flow paths 243a and 243b do not match, the flow paths 243a and 243b are closed, and the hole 255a , 255b) and the flow paths 243a and 243b coincide, the flow path is opened and the washing water may be sprayed through the head group 240.

According to an embodiment of the present invention, the base portion 255 may be provided in a cylindrical shape. At least one hole 255a, 255b that can communicate with the flow paths 243a, 243b may be provided on the curved surface of the base portion 255. The first hole 255a communicates with the first head group 241 to control the washing water sprayed to the first head group 241. The second hole 255b communicates with the second head group 242 to control the washing water sprayed from the second head group 242. The first hole 255a and the first communication pipe 251 communicate with each other to form a first flow path 243a connected to the first head group 241. The second hole 255b and the second communication pipe 253 communicate with each other to form a second flow path 243b connected to the second head group 242. The third communication pipe 252 between the first communication pipe 251 and the second communication pipe 253 may be connected to an injection unit located at the top.

In this way, the flow path switching valve 250 may be variously positioned to control the washing water sprayed from each head group 240.

It is possible to control that the washing water is injected from the first head groups 211 and 241 and the second head groups 212 and 242 using the flow path switching valves 220 and 250. The first head groups 211 and 241 and the second head groups 212 and 242 may be variously arranged. For example, the second head group 212 between the first heads 216a, 245a, the second heads 216b, 245b, and the third heads 216c, 245c of the first head groups 211, 141 The fourth heads 217a, 246a, and fifth heads 217b, 246b, and sixth head of the 242 may be positioned. Accordingly, the heads of the first head group are positioned in odd numbers and the heads of the second head group. If they are controlled by using a flow path switching valve, it is possible to control the washing water to be sprayed separately from the odd-numbered head and the even-numbered head.

14 is a plan view showing a spray unit and a switching unit according to another embodiment of the present invention, Figure 15 is a view showing a switching unit according to another embodiment of the present invention, Figure 16 is another view of the present invention FIG. 17 is a view showing a state before the switching unit according to another embodiment contacts the locking member, and FIG. 17 is a view showing a state after the switching unit according to another embodiment of the present invention contacts the locking member. 18 and 19 are perspective views showing states before and after contact between the switching unit and the locking member. .

14 to 19, the conversion unit 320 may be coupled to one guide member 340. The guide member 340 is located inside the washing tank and can be coupled to the center of the conversion unit 320 for support of the conversion unit 320. A locking member 350 for converting the angle of the switching unit 320 may be located on one side of the washing tank, which will be described later.

The guide member 340 may be provided with a holder 330 to guide the coupling between the switching unit 320 and the guide member 340. The holder 330 is coupled to the guide member 340, and the switching unit 320 is coupled to the holder 330. One side of the conversion unit 320 may be provided with a coupling portion 323 provided to protrude upward to engage with the holder 330. The coupling portion 323 and the holder 330 may be hinged by the coupling member 324. Balance members 321 for preventing the switching unit 320 from shaking may be coupled to both sides of the switching unit 320. As the balance member 321, rollers that smoothly move while maintaining the same height on both sides of the switching unit 320 may be used. The balance member 321 may be coupled to the lower surface of the switching unit 320. To this end, ribs 322 for coupling of the balance member 321 may be provided on both sides of the switching unit 320. On the outer surface of the balance member 321, a relief member (not shown) for alleviating the shock generated when the switching unit 320 is moved may be separately coupled. Rubber may be used as a relief member (not shown).

The switching unit 320 is hinged to the holder 330 so as to be rotated over a certain angle. Accordingly, before the switching unit 320 contacts the locking member 350, the inside of the washing tank is moved to the state as shown in FIG. As shown in FIG. 12, after the switching unit 320 contacts the locking member 350, the switching unit 320 rotates over a predetermined angle with respect to the holder 330 coupled to the guide member 340. Accordingly, since the angle of the switching unit 320 changes, the injection angle of the washing water in which the flow path is switched by the switching unit 320 also changes. Therefore, since the switching unit 320 can be rotated at various angles, it is possible to prevent the blind spot from which the washing water is not sprayed.

In addition, as illustrated in FIG. 15, an opening 340a may be provided on the lower surface of the guide member 340. Accordingly, the contaminants generated while washing the dishes can escape through the opening 340a, and it is possible to prevent the contaminants from accumulating on the guide member 340.

20 is an enlarged perspective view showing a switching unit according to an embodiment of the present invention.

20, the conversion unit 120 may include a concave portion 121 for switching the direction of the washing water. According to the drawing, the concave portion 121 is provided in a curved shape, but is not limited thereto.

The rear wall 123 is provided on the rear surface of the concave portion 121, and side walls 122 are provided on both sides. Rollers may be coupled to both side walls 122. The concave portion 121 of the conversion unit 120 guides the direction of the washing water sprayed from the injection unit is switched.

Washing water is sprayed from the spraying hole of the spraying unit, but since the washing water that is diverted in the second direction (D2) along the concave portion 121 of the switching unit 120 is sprayed onto the tableware, it is generally more common than the washing water sprayed from the hole The possibility that unwashed parts remain on the dishes is reduced by spraying a large area of washing water.

21 to 28 are enlarged perspective views showing a conversion unit according to various embodiments of the present invention.

As shown in FIG. 21, the concave portion 411 may include at least one bent portion 414 bent in the longitudinal direction of the switching unit 410 to divert and spray the washing water in various directions. The bent portion 414 may be provided to be bent at various angles in a direction in which the concave portion 411 is formed or in an opposite direction. Accordingly, the direction of the washing water sprayed can be adjusted. In addition, a plurality of bent portions 414 may be provided, and it is also possible to spray a variety of washing water according to each region.

As shown in FIG. 22, the conversion unit 420 may be provided with a plurality of grooves 424 for guiding the direction change of the washing water in the recess 421. The washing water comes into contact with the groove 424 and is pushed upward along the groove 424 of the concave portion 421 by water pressure, so that the direction of the washing water is switched.

23, the concave portion 431 is divided into two regions. That is, the first region 435 where the groove is not formed and the second region 434 where the groove is formed may be included. Accordingly, the washing water sprayed from the spraying unit is sprayed along the groove of the second region 434 to change the direction.

As shown in FIG. 24, the recessed portions 444 and 445 may be formed of a curved surface 444 and a flat surface 445. The washing water sprayed from the spraying unit may have a different distance to reach the switching unit 440 according to the RPM of the pump. That is, when the water pressure is low, it cannot be sprayed away, so a relatively small distance is moved, and when the water pressure is high, it is sprayed away to move a relatively large distance. Even when the switching unit 440 is located farthest from the injection unit, in order to change the direction of the washing water sprayed by the switching unit 440, the impact section of the switching unit 440 where the washing water reaches the switching unit 440 It is important. When the vertical section of the switching unit 440 is composed of a straight section S1 made of a plane 445 and a curved section S2 made of a curved surface 444 as shown in FIG. 23, the impact point of the washing water is set to the plane 445. It is preferably formed in the straight line section (S1) made.

When the washing water pressure is considered, the straight section S1 of the switching unit 440 must be formed at a predetermined height d1 or more to minimize the flow rate loss and thus reach the switching unit 440. The straight section S1 is preferably formed with a vertical height d1 of 15 mm or more from the bottom surface of the switching unit 440. In addition, it is preferable that the curved section S2 is formed above the straight section S1 in order to smoothly change the direction of the washing water reaching the straight section S1 to form a secondary water jet. The vertical height d2 of the curved section from the bottom surface of the switching unit 440 is preferably higher than the vertical height d1 of the straight section S2. That is, a relationship of d1> d2 can be established.

16 to 19, the switching unit 440 is rotated by the locking member of the injection unit, taking into account this rotation section, the incident angle (α) of the washing water entering the switching unit 440 is It is desirable to be within 35 kPa.

The concave portion may be provided in various shapes, and is not limited to that shown in FIG. 23. For example, the concave portion may be formed of a combination of a secondary curve and a primary curve such as a circle, ellipse, parabolic, hyperbolic, and involute.

25 to 27, the concave portion 451 of the switching unit 450 includes an inlet portion 455 through which washing water flows and a reverse outlet portion 456, 457 through which washing water is injected. The outlet portions 456 and 457 include a first step portion 456 and a second step portion 457. The first step portion 456 and the second step portion 457 may be provided to be stepped. That is, when the cross section of the switching unit 450 is cut in a certain direction, the first step portion 456 and the second step portion 457 may be provided so that the cross-sectional shape is not constant. A plurality of first stepped portions 456 and second stepped portions 457 may be provided. The step difference between the first step portion 456 and the second step portion 457 may be at least 2 mm. The flow path of the washing water formed by the inflow portion 455 and the first step portion 456 is defined as a first region, and the flow path of the washing water formed by the inflow portion 455 and the second step portion 457 is removed. It is defined as 2 areas. The first area and the second area may be alternately positioned to form the switching unit 450.

According to the drawing, both the inlet portion 455 and the outlet portions 456 and 457 are provided as curved surfaces, but the present invention is not limited thereto, and the inlet portion 455 is provided in a flat plane so that the movement path of the washing water includes a straight section. Can be provided. In this case, the slope of the straight section of the first area and the slope of the straight section of the second area are the same, and the length of the curved section can be different. Accordingly, it is possible to prevent interference between water jets due to the shape of the sheet for each region formed by the curved section. In addition, by varying the slope of the straight section of the first area and the slope of the straight section of the second area, a height at which the primary water jet formed by flowing into the switching unit 450 is redirected to the secondary water jet may be provided differently. .

This is to prevent the washing power sprayed from the head of each spraying unit from interfering with each other after the flow path is switched by the switching unit 450, thereby weakening the spraying power of the washing water. Since the flow path of the washing water is switched along the switching unit 450, when a certain portion of the switching unit 450 is formed to be stepped, since there is an angle difference between adjacent washing water, interference between the washing water can be prevented. .

Referring to FIG. 27, when the head 115 of the injection unit 110 is six, an area where the washing water reaches the switching unit 450 may be composed of six areas corresponding to the head 115. The recesses 451 are divided into regions corresponding to the heads 115 of the injection unit 110 in one switching unit 450, and the regions corresponding to the heads 115 are as mentioned in the previous description. Likewise, the first region and the second region may be alternately positioned. In this case, in order to form a water jet in the form of a sheet by minimizing the loss of washing water, it is preferable that the six heads 115 maintain each distance at about 80 mm. The first area and the second area may have different curvatures such that the sprayed water is sprayed at different angles. According to the drawing, the curvature formed by the outlet portion 456 of the first region and the outlet portion 457 of the second region is different, but is not limited thereto, and the curvature formed of the inlet portion 455 is different. It might be.

28 is a view showing a switching unit according to another embodiment of the present invention.

As illustrated in FIG. 28, the conversion unit 460 may be provided to have different injection angles of the secondary water jet for each head spraying washing water.

The conversion unit 460 may be provided to include a plurality of recesses 461 and 462. The first concave portion 461 and the second concave portion 462 may be provided in a stepped manner, and the first concave portion 461 and the second concave portion 462 are alternately arranged to convert one unit 460 Can be configured. According to an embodiment of the present invention, three first concave portions 461 of the concave portions 461 and 462 and three second concave portions 462 may be provided to provide a total of six, and six heads ( 115).

Since the first concave portion 461 and the second concave portion 462 are provided in a stepped manner, the height of generation of the secondary water jet in which the washing water is switched in the second direction and injected is different. Accordingly, the discharge angles of the secondary water jets discharged from the first concave portion 461 and the second concave portion 462 may be provided differently. For example, the discharge angle may be formed such that the discharge angles of the first concave portion 461 and the second concave portion 462 are different in the range of 40ㅀ to 140ㅀ.

In addition, by varying the slope of the straight section of the first area and the slope of the straight section of the second area, a height at which the primary water jet formed by flowing into the switching unit 450 is redirected to the secondary water jet may be provided differently. .

29 and 30 are cross-sectional views showing a switching unit according to various embodiments of the present invention.

As illustrated in FIGS. 29 and 30, patterns 472 and 482 having various shapes may be provided in the concave portions 471 and 481 of the switching units 470 and 480. For example, according to an embodiment of the present invention shown in FIG. 28, a scale-like pattern 472 may be provided. According to an embodiment of the present invention illustrated in FIG. 29, a diamond pattern 482 may be provided. The pattern of various shapes can reduce frictional resistance caused by contact with the conversion units 470 and 480 to change the flow path of the washing water. Accordingly, it is possible to prevent the washing water from contacting the switching units 470 and 480 and weakening the injection force.

31 is a view showing a switching unit according to another embodiment of the present invention.

As illustrated in FIG. 31, the switching unit 490 may be provided with at least one slit 493 and 494. The switching unit 490 may be provided with a first step portion 496 and a second step portion 497. According to the drawing, the switching unit 490 is provided with four first slits 493 and one second slits 494, but is not limited thereto. The first slit 493 is provided in a direction in which washing water flows in and out, and the second slit 494 may be provided at a right angle to the first slit 493. The second slit 494 may be provided on a surface in contact with the holder 492.

At least one of the first slit 493 and the second slit 494 may be provided. In addition, although the first slits 493 are illustrated as being provided in a total of four, the present invention is not limited thereto, and may be provided on at least one portion of the switching unit 490.

The washing water sprayed from the injection unit 110 (see FIG. 27) may pass through slits 493 and 494 of the conversion unit 490 to wash the conversion unit 490. Accordingly, the conversion unit 490 can change the direction of the washing water without being contaminated with contaminants generated from the dishes, thereby minimizing the contamination of the conversion unit 490 while the dishes are being washed. In addition, the washing water that has passed through the slits 493 and 494 may wash the guide member 491 under the conversion unit 490 together.

Contaminants generated while washing the dishes may escape without accumulating in the conversion unit 490 through slits 493 and 494 of the conversion unit 490. In the case of the first slit 493, it is possible to prevent accumulation of contaminants on the surface of the conversion unit 490. In the case of the second slit 494, contaminants that may accumulate on the guide member 491 pass through the second slit 494. In the process of washing the dishes through the slits 493 and 494, the conversion unit 490 and the guide unit 491 are also washed by the washing water, and contaminants escape through the slits 493 and 494. It is possible to prevent the accumulation of contaminants in the guide unit 491.

32 is a cross-sectional view showing the configuration of a dishwasher according to another embodiment of the present invention.

32, the switching unit 520 may be located above the tableware basket 104. Accordingly, the rack 105 and the driving units 531, 532, and 132 may also be located above the tableware basket 104. According to an embodiment of the present invention shown in Figure 30, a plurality of recessed portions 521 and 522 of the switching unit 520 is provided. The upper concave portion 521 located on the upper side is concave upward to convert the flow path of the washing water sprayed from the spraying unit 110 to the upper dish basket 104a. The lower concave portion 522 located at the lower side is concave downward to convert the flow path of the washing water sprayed from the spraying unit 110 to the lower dish basket 104b. In this way, the switching unit is located on the upper, lower, left, and right sides of the dish basket to switch the flow path of the washing water.

33 is a view showing a part of a dishwasher according to another embodiment of the present invention.

33, the injection units 611 and 612 may be provided to face each other inside the washing tank. The switching unit 620 is provided inside the direction of the flow path injected from the respective injection units 611 and 612. A plurality of concave portions 621 and 622 are provided to face each of the injection units 611 and 612 so as to change the direction of the washing water sprayed from each of the injection units 611 and 612.

The first spray unit 611 and the first concave portion 621 are provided to face each other, and accordingly, the washing water sprayed from the first spray unit 611 is provided by the first concave portion 621 to the dish basket 104 Switch the flow path in the direction. The second spraying unit 612 and the second concave portion 622 are provided to face each other, and accordingly, the washing water sprayed from the second spraying unit 612 is provided by the second concave portion 622 to the dish basket 104 Switch the flow path in the direction.

The switching unit 620 can be driven by a power generating device as in the above-described embodiment. However, the present invention is not limited thereto, and the switching unit 620 may be moved by washing water injected from the injection units 611 and 612. That is, the conversion unit 620 may move in the direction of the second injection unit 612 by the washing water sprayed from the first injection unit 611, and conversely, the cleaning unit sprayed by the washing water injected from the second injection unit 612 The switching unit 620 may move in the direction of the one injection unit 611. Therefore, the position of the switching unit 620 may be determined by the washing water sprayed from the first injection unit 611 and the second injection unit 612. The washing water injected into the first injection unit 611 and the second injection unit 612 may be controlled by the flow path switching valve 615.

The injection units 611 and 612 are provided to face both sides of the washing tank 103, and a plurality of conversion units 620 are also provided to face each of the injection units 611 and 612, so that the injection unit without a separate power generating device ( The movement of the switching unit 620 can be controlled only by the injection pressure of 611 and 612.

34 is a view showing a part of a dishwasher according to another embodiment of the present invention.

As shown in FIG. 34, at least a portion of the injection unit 650 may be located outside the washing tank 643. That is, only a part of the head 651 of the injection unit 650 is located inside the washing tank 643, and the body 652 of the injection unit 650 may be located outside the washing tank 643. At least a portion of the injection unit 650 may be located in the space between the washing tank 643 and the cabinet 101. Since only the head 651 of the injection unit 650 is located inside the washing tank 643, it is possible to widen the space where the washing water is sprayed, so that it is possible to prevent the blind spot from which the washing water is not injected.

In the case of the embodiment shown in FIG. 34, as in the other embodiments, the switching unit 660 positioned below the dish basket 104 and the dish basket 104, and a guide member for moving the switch unit 660 (661). When the reference numerals are the same, it means the same as described above.

35 is a view schematically showing the movement of the conversion unit of the dishwasher according to another embodiment of the present invention, FIG. 36 is a view showing the conversion unit illustrated in FIG. 35 in detail, and FIG. 37 is FIG. 36 It is a view showing the switching unit shown in different angles.

35 to 37, the conversion unit 680 is capable of moving with a constant path as well as linearly reciprocating in the washing tank 673. That is, the switching unit 680 may be provided to move in the first direction R1 and the second direction R2 different from the first direction R1. As shown in FIG. 35, the switching unit 680 can move while drawing a rectangular closed loop. It is the embodiment illustrated in FIGS. 36 and 37 that specifically shows such a case.

In order to move the switching unit 680 as shown in FIG. 35, the switching unit 680 is moved in the second direction R2 in addition to the guide member 681 for moving the switching unit 680 in the first direction R1. Direction shifting members (691, 692) are required to move to. According to an embodiment of the present invention, the direction changing members 691 and 692 include first direction changing members 691a and 691b provided in wedge shapes on both sides of the switching unit 680, and first direction changing members ( 691a, 691b), and may include second direction conversion members 692a, 692b. According to an embodiment of the present invention, one of the second direction changing members 692a and 692b is provided in the injection unit 670, and the other of the guide member 680 is provided on the opposite side of the injection unit 670. It can be provided on one side. One of the first direction switching members 691a and 691b is provided to face the injection unit 670, and the other may be provided on the opposite side to the injection unit 670.

When the switching unit 680 moves relative to the guide member 681, and the first direction changing members 691a, 691b and the second direction changing members 692a, 692b contact, the switching unit 680 changes the second direction Due to the shape of the members 692a and 692b, the guide member 681 can move in the second direction R2. When the switching unit 680 moves toward the injection unit 670 and when it moves to the opposite side of the injection unit 670, the movements caused by the direction shifting members 691 and 692 occur opposite to each other. That is, the switching unit 680 moves in the direction of the injection unit 670 so that the first direction switching member 691a and the second direction switching member 692a contact, and the switching unit 680 moves to the left. When the switching unit 680 moves to the opposite side of the injection unit 670 and the first direction changing member 691b and the second direction changing member 692b contact, the switching unit 680 may move to the right.

As described above, the switching units 680 may be moved while forming various closed loops due to the direction changing members 691 and 692. It is also possible to form a closed loop by moving the guide member 681 in the second direction R2 by forming a direction changing member capable of pushing the guide member 681 separately from the above-described embodiment.

38 is a view showing a part of a dishwasher according to another embodiment of the present invention.

According to an embodiment of the present invention shown in FIG. 38, the dishwasher 700 includes an upper dish basket 704 and a lower dish basket 705. The upper tableware basket 704 may include a first tableware receiving portion 704a and a second tableware receiving portion 704b. The first tableware accommodating portion 704a and the second tableware accommodating portion 704b may be provided with different heights in order to efficiently accommodate different types of dishes.

The upper conversion unit 706 may be provided along a lower surface shape of the upper tableware basket 704. In the case of the embodiment shown in FIG. 28, since the upper switching unit 706 is located below the upper table basket 704, it is provided along the lower surface of the upper table basket 704, but is not limited thereto. When the unit is located on the upper side of the dish basket, it may be provided along the top surface shape of the dish basket. That is, the switching unit is provided along the shape of one surface of the dish basket adjacent to the switching unit. Accordingly, the upper injection unit may include a plurality of head groups 711 and 712. The first head group 711 is positioned to correspond to the first tableware receiving portion 704a, and may include a plurality of heads 711a, 711b, 711c, and 711d. The second head group 712 is positioned to correspond to the second tableware receiving portion 704b, and includes a plurality of heads 712a, 712b, and 712c.

In the case of the lower tableware basket 705, a cutlery container 705a may be provided on one side of the lower tableware basket 705 to accommodate the cutlery. A lower switching unit 707 corresponding to the lower dish basket 705 is provided, and a lower spraying unit 731 capable of spraying washing water to the lower switching unit 707 is provided. The lower injection unit 731 may include a plurality of heads 731a, 731b, 731c, 731d, 731e.

As described above, various types of conversion units 706 and 707 are provided according to the shape of the dish baskets 704 and 705 to efficiently switch the flow path of the washing water in the dish basket direction.

In addition, depending on the distance between wires or frames formed in the dish baskets 704 and 705 or the type of dish accommodated in the dish baskets 704 and 705, shapes of regions constituting the switching units 706 and 707 may be changed. As shown in FIG. 38, the space between the wires formed in the tableware baskets 704 and 705 may be different according to the type of tableware being accommodated. That is, the large tableware can be accommodated in the tableware basket 705 with a wide gap between wires, but a small tableware such as a cutlery can be accommodated inside the cutlery container 705a in which the space between wires is small. Depending on the spacing between the formed wires, the shape of the dish baskets 704 and 705 and the corresponding switching units 706 and 707 or the curvature of the recess may be changed.

39 is a view showing a part of a dishwasher according to another embodiment of the present invention.

According to an embodiment of the present invention shown in Figure 39, the dishwasher 800 is provided with a washing tank 803 in which dishes are washed inside the cabinet 801 forming an exterior.

The dishwasher 800 includes a dish basket 804, and the dish basket 804 includes a dish dish basket 804a at the top, a dish dish basket 804b at the middle, and a dish dish basket 804c at the bottom. A conversion unit 806 may be positioned at the bottom of each dish basket 804.

According to an embodiment of the present invention, it is possible to move in the w1 direction of the switching unit 806a located at the bottom of the upper dish basket 804a. Here, moving in the w1 direction means that the surface on which the door of the dishwasher 800 is located is defined as the front, and when the opposite side of the front is defined as the rear, it moves between the front and rear of the washing tank 803. The switching unit 806c of the lower tableware basket 804c can also move in the w1 direction.

The switching unit 806b located at the bottom of the middle tableware basket 804b can move in the w2 direction. Here, moving in the w2 direction means moving between both sides of the washing tank 803. That is, the w2 direction means to move perpendicular to the w1 direction.

Spray units 811, 812, 813 are positioned to spray water for each switching unit 806. The spray unit 811 at the top and the spray unit 812 at the bottom are the front of the washing tank 803 so that the washing water can be sprayed to the upper switching unit 806a and the lower switching unit 806c moving in the w1 direction. Or it can be located on the back. According to the drawing, the upper injection unit 811 and the lower injection unit 813 are illustrated to be located at the rear of the washing tank 803, but are not limited thereto.

The middle spray unit 813 may be located on the side of the washing tank 803 so as to spray the washing water to the middle switching unit 806b moving in the w2 direction.

According to the drawing, only the middle switching unit 806b can move in the w2 direction, but is not limited thereto, and the top switching unit 806a and the bottom switching unit 806c also move in the w2 direction. Can be configured.

40 is a view showing a part of a dishwasher according to another embodiment of the present invention.

As shown in FIG. 40, the dishwasher 900 may include a cabinet 901 forming an exterior and a washing tank 903 provided inside the cabinet 901.

The dishwasher 900 includes a dish basket 904, and the dish basket 904 includes an upper dish basket 904a, a middle dish dish basket 904b, and a lower dish dish basket 904c. Switching units 906, 907, and 908 may be located at the bottom of each dish basket 904.

According to an embodiment of the present invention, the middle tableware basket 904b is provided so that the lower center portion protrudes, and accordingly, the switching unit 907 located at the bottom of the middle tableware basket 904b also has a middle tableware basket. It is provided in a shape corresponding to 904b. The middle switching unit 907 may include a protrusion 907b provided so that the lower end protrudes. According to an embodiment of the present invention, the protrusion 907b is provided in the middle portion of the switching unit 907, and both edge portions 907a and 907c of the switching unit 907 have the shape of a middle cutlery basket 904b. It may be located above the projection 907b to correspond to.

The injection units 911, 912, and 913 may be provided with an upper injection unit 911, a middle injection unit 912, and a lower injection unit 913. The interruption injection unit 912 may be provided to correspond to the shape of the interruption conversion unit 907 to spray the washing water to the interruption conversion unit 907. Accordingly, each of the heads 912a, 912b, 912c, 912d, and 912e constituting the middle injection unit 912 may have different heights of positions to correspond to the shape of the middle switching unit 907. According to an embodiment of the present invention, the heads 912b, 912c, and 912d corresponding to the protrusions 907b may be located below the heads 912a, 912e corresponding to both edge portions 907a, 907c.

Since the intermediate switching unit 907 is provided to correspond to the shape of the intermediate dish basket 904b, it is possible to efficiently spray the washing water into the middle dish basket 904b without adjusting the height of the switching unit 907 separately.

In addition, since the protrusion 907b is provided in the center of the switching unit 907 and is provided to be cut out from both edge portions 907a and 907c of the protrusion 907b, detergent can be placed in the protrusion 907b. Accordingly, the washing water sprayed from the middle spraying unit 912 may be mixed in contact with the detergent of the protrusion 907b to wash the dishes.

In the above, specific examples have been illustrated and described. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the invention pertains may perform various modifications without departing from the gist of the technical spirit of the invention described in the claims below. .

100, 150, 500, 600, 700, 800, 900: dishwasher
101, 701, 801, 901: cabinet
102: door 103, 703, 803, 903: washing tank
104, 704, 705, 804, 904: tableware basket 105: rack
110, 210, 611, 612, 650, 670, 811, 812, 813, 911, 912, 193: injection unit
120, 320, 410, 420, 430, 440, 450, 460, 470, 480, 490, 520, 620,, 660, 680, 706, 707, 806, 906: switching unit
131, 340, 491, 661, 681: guide member
330, 492: holder
350: engaging member 691: first direction switching member
692: second direction switching member

Claims (34)

A cabinet forming an appearance;
A washing tank provided in the cabinet and washing the dishes;
A dish basket provided in the washing tank and storing dishes;
An injection unit that sprays washing water into the washing tank;
A switching unit provided inside the path of the washing water sprayed to change the direction of the washing water sprayed from the spraying unit;
And at least one guide member coupled to one side of the conversion unit so that the conversion unit can move inside the washing tank.
The switching unit includes a dishwasher, characterized in that at least a portion of a surface in contact with the washing water is concavely provided to convert the direction of the washing water sprayed from the spraying unit to the dish basket direction. According to claim 1,
The switching unit is dishwasher, characterized in that provided on at least one side of the upper, lower or side of the dish basket to switch the direction of the washing water sprayed from the spray unit to the dish basket direction. delete According to claim 1,
In order to change the direction of washing water, the dishwasher is characterized in that the recess is provided in a curved shape. According to claim 4,
The dishwasher according to claim 1, wherein the concave portion includes at least one bent portion that is bent in the longitudinal direction of the switching unit to divert and spray the washing water in various directions. According to claim 4,
A dishwasher according to claim 1, wherein at least one of a plurality of grooves or protrusions for guiding the direction change of the washing water is provided inside the recess. The method of claim 6,
At least one of the grooves or projections is dishwasher, characterized in that provided in only a part of the recess so that the direction of the washing water is guided toward the dish. According to claim 1,
Dishwasher, characterized in that a pattern for changing the direction of the washing water is provided on one surface of the conversion unit in contact with the washing water. According to claim 1,
A dishwasher according to claim 1, wherein at least one slit for preventing contaminants from accumulating in the conversion unit is provided on at least a portion of the conversion unit. According to claim 1,
A dishwasher characterized in that an opening for preventing accumulation of contaminants is formed on the lower surface of the guide member. According to claim 1,
Dishwasher, characterized in that the movement of the switching unit in the washing tank is moved by the injection pressure of the washing water sprayed from the spray unit. According to claim 1,
And a power generating device that drives the switching unit to move the switching unit in the washing tank. The method of claim 12,
A dishwasher further comprising a pulley or gear coupled to the power generating device, wherein the pulley and the switching unit are connected via a connecting member. According to claim 1,
The guide member is dishwasher, characterized in that provided on the inner surface of the washing tank to guide the movement of the conversion unit. According to claim 1,
The guide member is located inside the washing tank, the dishwasher, characterized in that coupled to the conversion unit to support the center of the conversion unit. delete delete According to claim 1,
The dishwasher according to claim 1, wherein the switching unit is coupled to the guide member to be rotated at an angle. According to claim 1,
The spray unit is dishwasher, characterized in that fixed to at least one of the inner wall of the washing tank. According to claim 1,
The spraying unit includes at least one head group consisting of at least one head for spraying washing water, and each of the head groups is a dishwasher, characterized in that it is possible to selectively spray washing water. The method of claim 20,
Dishwasher, characterized in that at least one element of the injection pressure, the temperature of the washing water, the injection time of the head group is sprayed so as to differ for each of the head groups. The method of claim 20,
The at least one head is dishwasher characterized in that the washing water is arranged inclined upward in order to be sprayed over a certain distance. The method of claim 20,
The spraying unit further comprises a flow path switching valve to selectively control the spraying of the washing water of the head group. According to claim 4,
The dishwasher according to claim 1, wherein the concave portion includes a first step portion and a second step portion provided to be stepped with each other. According to claim 4,
The spraying unit includes at least one head for spraying washing water, and the concave portion includes at least one region corresponding to each head, and the regions have different curvatures such that washing water is discharged at different angles. Dishwasher, characterized in that. According to claim 1,
The dishwasher according to claim 1, further comprising a direction changing member for changing a movement direction to move in a first direction and a second direction different from the first direction. In the dishwasher including a washing tank for washing the dishes and a dish basket for storing dishes located inside the washing tank,
At least one spraying unit located on at least one side of the upper or lower side of the dish basket and spraying washing water in a first direction;
It includes; a switching unit for switching the direction of the washing water so that the washing water sprayed from the spraying unit can switch the flow path in the second direction that is the direction of the dish basket
The dishwasher according to claim 1, wherein the conversion unit includes a concave portion recessed to convert the direction of the washing water from the first direction to the second direction. delete The method of claim 27,
The dishwasher according to claim 1, wherein the switching unit includes a driving unit for driving the front and rear surfaces or the left and right surfaces or the upper and lower surfaces of the washing tank to be movable. The method of claim 29,
The driving unit is coupled to the switching unit and at least one guide member for guiding the movement of the switching unit, a power generating device for driving the switching unit, a pulley or gear coupled to the power generating device, and Dishwasher, characterized in that it comprises a connecting member for connecting the pulley or gear and the conversion unit. The method of claim 30,
A dishwasher characterized in that when the switching unit moves in the direction of the injection unit, it is moved by a power generating device, and when the switching unit moves away from the injection unit, it moves by the water pressure of the washing water sprayed to the injection unit. . The method of claim 27,
The washing unit is disposed to face each other inside the washing tank, the switching unit is dishwasher, characterized in that it comprises a plurality of recesses disposed to face each injection unit. The method of claim 27,
The conversion unit is provided in an upward direction of the dish basket, and the recess is disposed to face the dish basket to switch the flow path of the washing water in the direction of the dish basket. The method of claim 27,
The switching unit is provided along a shape of one surface of the dish basket adjacent to the switching unit, and the spraying unit is arranged to correspond to the shape of the switching unit.

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