KR20070102780A - A dish washer for using built-in - Google Patents

Abstract

A dish washer is provided to separate debris attached on dishes from the dishes by generating mechanical vibration through an ultrasonic transducer mounted to the bottom of a washing tub. A dish washer comprises a lift(30) and an ultrasonic transducer. The lift includes a stepping motor(31), ball screws(33), ball bushes, an electric belt(32). The stepping motor rotates forwardly and backwardly. The ball screw, whose one end is fastened to a shaft of the stepping motor, is clamped to two sides of a dish basket(20) through the washing tub so as to elevate the dish basket. The ball bush is clamped to two sides of the dish basket and to the ball screw so as to lift and lower the dish basket as the ball screws rotate. The electric belt transfers torque of the stepping motor to the ball screws and rotates each ball screw at the same rate. The ultrasonic transducer is mounted outside the bottom of a washing tub(5) to generate mechanical vibration energy transmitted to the dishes in the dish basket through water in the washing tub.

Description

A dish washer for using built-in}

1 is a schematic diagram illustrating an internal configuration of a built-in dishwasher of the present invention.

Figure 2 is an operating state of the door of the built-in dishwasher according to the present invention.

Figure 3 is another embodiment of the door of the built-in dishwasher according to the present invention.

Figure 4 is a perspective cross-sectional view of the washing tank of the built-in dishwasher according to the present invention.

5 is a block diagram of a lifting device of the built-in dishwasher according to the present invention.

Figure 6 is another embodiment of the lifting device of the built-in dishwasher according to the present invention.

Figure 7 is another embodiment of the built-in dishwasher according to the present invention.

8a and 8b is a state diagram showing the operation of the built-in dishwasher of the present invention.

Explanation of symbols on the main parts of the drawings

1, 1a. Dishwasher 3. Case

5. Washing tank 7. Ball screw insertion hole

10, 10a. Door 15. Spray Nozzle

20. Tableware shelf 22. Support panel

24. Ball Bush 26. Driven Gear

30, 30a. Elevator 31. Stepping motor

32. Electric belt 33. Ball screw

35. Drive Gear 40. Ultrasonic Oscillator

S. sink

The present invention relates to a built-in dishwasher which is installed in a built-in sink, and more particularly, in the built-in dishwasher, when the door is installed at the top of the dishwasher, the upper part of the tank-type dishwasher is opened. The dish storage shelf is lifted from the washing tank to the bottom of the sink by a lifting device connected with the shelf, so that the dishes can be stored in the conventional built-in dishwasher configured to open or close the door to the front or the top of the dishwasher, In addition to the hassle of having the user open the door directly when unloading, it prevents the user from having to bend over excessively to store or take out the dishes, and the sink from the sink through the elevator while the user stands in the sink. In a dish storage rack that rises above the floor The present invention relates to a built-in dishwasher for storing dishes for easier washing or for removing and washing dishes.

In general, the dishwasher has various effects such as reducing housework by rationalizing dishwashing after a meal, but the dishwasher is not good because it is used on one wall of the kitchen or on the floor of the sink, There was a problem that the utilization of the space for Korea greatly dropped.

Accordingly, the built-in method of using the dishwasher on a wall or installing the sink is drawing attention, and newly built apartments and villas use the built-in method of installing kitchen appliances as well as the dishwasher.

In the conventional built-in dishwasher, the door is usually opened or closed at the front of the dishwasher, or the door is opened or closed at the top of some dishwashers. In the case of the dishwasher that opens or closes in the front or top, the user has to open the door in order to store the dishes inside the dishwasher or to remove the dishes. In the case of a conventional dishwasher in which the opening and closing of the dishwasher is a front surface of the dishwasher, there is no structure in which the dish storage shelf located in the washing tank is lifted from the washing tank by the elevating device to the bottom of the sink. Sink bar at the top of the wash tub for storage shelves It is not raised to the front, but protrudes forward like a door and rises to a height lower than the height of the washing tank. Therefore, when storing or removing the dishes in the dishwasher, the dish storage shelf Unless the structure rises above the bottom of the sink, there is a big troublesome, such as the user has to bend over excessively to store or take out dishes.

In addition, there is also a problem that the user has to maintain such an uncomfortable posture until the user stores the dishes before washing or removes all the dishes that have been washed out from the dishwasher.

Meanwhile, in the case of the dishwasher in which the door of the conventional built-in dishwasher is opened and closed at the top of the dishwasher, a dishwasher equipped with an ultrasonic vibrator at the bottom of the washing tank of Korean Utility Model Publication No. 91-8189, and Korean Utility Model Publication No. 89 Each of the built-in dishwashers equipped with a dishwasher in the sink of -8706 has been proposed, wherein in the case of the dishwasher equipped with the ultrasonic vibrator, the interface is separated between the dishes caused by the vibration energy of the ultrasonic vibrator and the food waste on the surface of the dishware. However, since the washing tank itself forms an open water tank shape, and the dish storage shelf is fixed inside the washing tank, this also means that when the user puts the dishes inside the dishwasher or takes out the washed dishes, Bend over excessively In addition to the hassle of storing or taking out the product, there is a big problem such as maintaining the above uncomfortable posture until the user stores the pre-washed dishes from the dishwasher or removes all the finished dishes. There was this.

In addition, in the case of a built-in dishwasher equipped with a dishwashing device in the sink is provided with a cover member to cover the dishwasher separately from the door of the dishwasher installed in the sink to use the dishwashing device As described above, the user manually moves the cover member covering the dishwashing device to the side of the sink, and also opens the door that seals the dishwashing device, opens the dishwashing device, and fixes the dishes in the washing tank. When storing the dishes in the storage shelf or taking out the washed dishes, the user has to bend the waist excessively to store or take out the dishes like the dish washer equipped with the ultrasonic vibrator described above.

In addition, the user has the same problem as the dishwasher provided with the above-described ultrasonic vibrator, such as maintaining the above uncomfortable posture until the user stores the dishes before washing or removes the dishes after the washing is completed. .

The present invention devised in order to solve the above-described problems, the lifting device installed in connection with the inside of the washing tank of the washing tank of the upper part is opened when opening the door installed on the top of the dishwasher in the built-in dishwasher By setting the dish storage shelf to rise from the washing tank to the bottom of the sink, so that the user can open the door when storing or taking out the dishes inside the conventional built-in dishwasher configured to open or close the door to the front or the top of the dishwasher. In addition to the hassle of having to open it manually, it prevents the user from having to bend over excessively to store or take out the dishes, and also allows the user to stand on the sink and lift the dishes from the tub to the bottom of the sink. Easier to clean on shelves For to be used out of the storage or cleaning a room utensils it is an object.

In addition, by installing an ultrasonic vibrator on the bottom outside of the washing tank of the built-in dishwasher of the present invention, separately from the method of washing the food residue on the tableware by spraying the washing water spray of the spray nozzle installed in the center of the inner bottom surface of the washing tank In the state in which the washing water is stored in the tank-type washing tank, vibration energy is applied to the dishes stored in the dish storage shelf using the washing water as a medium, so that the interface separation between the dishes and the food waste period on the surface of the dishes is smooth. In addition, it is another object to make it possible to clean the food residue separated from the tableware by vibrating the washing water.

Built-in dishwasher of the present invention, built-in dishwasher for built-in dishwasher for washing dishes by spraying the washing water by the spray nozzle;

When the door is installed at the top of the dishwasher, the dish storage shelf is raised from the washing tank to the bottom of the sink by the elevating device connected to the inside of the tank-type washing tank in which the upper part is opened. Characterized in that configured to be used to take out.

In addition, another built-in dishwasher of the present invention, the built-in dishwasher for built-in dishwasher for washing dishes by spraying the washing water by the spray nozzle;

When the door is installed at the top of the dishwasher, the dish storage shelf is lifted from the washing tank to the top of the sink by the elevating device connected to the inside of the tank-type washing tank, and the dishes are stored or washed. Built-in dishwasher to take out and use the dish, the ultrasonic vibrator installed on the outside of the bottom of the washing tank to wash by applying the vibration energy to the dishes stored in the dish storage shelf using the wash water stored in the washing tank as a medium Characterized in that further comprises.

Here, the hoisting device is a stepping motor capable of forward and reverse rotation; A ball screw which is fastened to both sides of the dish storage shelf via a washing tank with one end fixed to the stepping motor shaft to move the dish storage shelf up and down; A ball bush coupled to the ball screw in a fixed state on both sides of the dish storage shelf so that the dish storage shelf can be moved up and down according to the rotation of the ball screw; It is characterized by consisting of a transmission belt which is connected to transmit the rotational force of the stepping motor to the ball screw side and to achieve a uniform rotation between each ball screw.

At this time, one side of the dish storage shelf is characterized in that the support panel for supporting the dish storage shelf while fixing the ball bush is further provided.

In addition, the another lifting device is a stepping motor capable of forward and reverse rotation; A driving gear rotatably fixed to one side of the washing tank by a rotating shaft to move the dish storage shelf up and down while rotating by receiving the rotational force of the stepping motor; A driven gear that is fastened to both sides of the dish storage shelf in mesh with the drive gear to convert the rotational force of the drive gear into a vertical movement of the dish storage shelf; Characterized in that composed of an electric belt for transmitting the rotational force of the stepping motor to the rotating shaft coupled between the drive gear.

At this time, one side of the dish storage shelf is provided with a support panel for supporting the dish storage shelf while fixing the driven gear meshed with the drive gear, the drive gear is a pinion, the driven gear is characterized in that the rack gear do.

On the other hand, the door is made of a left and right double door, it is characterized in that the inlet of the dishwasher is opened while being rotated to the left and right sides by a motor drive.

In addition, the door is configured to ascend above the sink bottom together with the dish storage shelf when the dish storage shelf is raised, and the door together with the dish storage shelf when the dish storage shelf is raised due to the opening of the door is at the bottom of the sink. The dish storage shelf is installed and fixed so as to rise upward.

Hereinafter, a built-in dishwasher of the present invention will be described in detail with reference to the drawings.

1 is an internal configuration diagram schematically showing a built-in dishwasher of the present invention, Figure 2 is a view showing the operating state of the door of the built-in dishwasher according to the present invention, Figure 3 is a built-in dishwasher according to the present invention Another embodiment of the door is shown.

In addition, Figure 4 shows a perspective cross-sectional view of the washing tank of the built-in dishwasher according to the present invention, Figure 5 shows a block diagram of the lifting device of the built-in dishwasher according to the present invention, Figure 6 is a built-in according to the present invention Another embodiment of the lifting device of the cited dishwasher is shown.

Built-in dishwasher (1) of the present invention, is installed in the sink (S) in a built-in form for washing the food waste attached to the food waste simply and cleanly by spraying the washing water by the spray nozzle 15, the tableware Lift device 30 connected to this when opening the door 10 installed on the top of the washing machine (1), that is, the lifting device 30 is connected to the inner dish storage shelf 20 of the washing tank (5) of the open top shape The dish storage shelf 20 is configured to store dishes for washing by rising from the washing tank 5 to the bottom of the sink S, or to easily remove and use dishes that have been washed, and the built-in dishwasher of the present invention. Detailed component of (1) is as follows.

The built-in dishwasher 1 of the present invention according to the present invention, as shown in Figure 1, the door 10 that is opened while being rotated to the lower side of the upper side of the case (3) by the hinge action according to the driving of the motor (not shown) and ; A washing tank 5 installed inside the case 3 to wash dishes using washing water sprayed through the spray nozzle 15; A dish storage shelf (20) installed in the washing tank (5) so as to be transported vertically and accommodating dishes for washing; A spray nozzle (15) installed at the center of the inner bottom surface of the washing tank (5) to rotate the sprayed washing water onto the dish storage shelf (20) in which the dishes are accommodated to wash the food residues on the dishes; It is connected to one side of the dish storage shelf 20 to raise and lower the dish storage shelf 20 from the washing tank 5 to the bottom of the sink S so as to store dishes for washing or to take out the washed dishes. It is comprised by the lifting device 30.

In the built-in dishwasher 1 of the present invention configured as described above, the door 10 includes a double door 10 installed at both sides of the case 3, as shown in FIG. When the user operates the operation button (not shown) of the built-in dishwasher 1 to take out the stored or washed dishes, the double door 10 is lowered on the left and right sides of the case 3 by the hinge action of the motor drive. When the inlet of the dishwasher 1 is opened while being rotated to the bottom, the sink 20 is driven from the washing tank 5 in which the dish storage shelf 20 driven by the elevating device 30 is built in the case 3. ) Rise above the floor.

In addition, in the double door 10, the washing water sprayed from the spray nozzle 15 installed at the inner bottom surface of the washing tank 5 is leaked to the outside of the built-in dishwasher 1 at the edge of each door 10, or A sealing member (not shown) is installed to prevent the inflow of contaminated water or contaminants into the washing tank 5 through the bottom of the sink S.

In addition, as another embodiment of the door 10 for opening and closing the washing tank 5 as shown in Figure 3 instead of the double door 10 of Figure 3 when the dish storage shelf 20 ascending the dish storage shelf In addition to the sink 20, the door 10a is configured to ascend above the bottom of the sink S. In particular, when the dish storage shelf 20 rises due to the opening of the door 10a, the door 10 together with the dish storage shelf 20 is opened. 10a) is also installed on the bottom of the sink (S), the dish storage shelf 20 is installed in the integrated form at the bottom of the door (10a) rising together with the dish storage shelf 20 so that the washing tank (5) can be opened. It is fixed.

In addition, in the case of the washing tank 5 of the built-in dishwasher 1 of the present invention, as shown in FIG. 4, the overall shape is formed in the shape of a square water tank in which the upper part is opened, and is installed and fixed inside the case 3. In particular, the lower side of the washing tank (5) of the ball screw 33 of the lifting device 30 for raising and lowering the dish storage shelf 20 located in the washing tank (5) so that the dishes can be stored by washing Ball screw insertion hole (7) is formed so that it can be installed through.

In addition, the ball screw insertion hole 7 is sealed to prevent the washing water sprayed from the injection nozzle 15 in the center of the inner bottom surface of the washing tank 5 to leak through the ball screw 33 to the bottom of the washing tank 5. The member 9 is provided.

Then, in the case of the dish-washing shelf 20 of the built-in dishwasher 1 of the present invention to wash the food debris on the tableware by the washing water sprayed through the spray nozzle 15 in the washing tank (5) At the same time, the food waste washed by the washing water is made in the form of a grill to be discharged to the drain port (not shown) formed on the other side of the bottom of the washing tank (5), the stepping motor (31) on one side of the dish storage shelf (20) The bowl bush 24 coupled to the rotating ball screw 33 receives the rotational force of the ball screw, that is, the counterclockwise and reverse rotation of the ball screw 33 while raising and lowering the dish storage shelf 20 washing tank (5) A) to support the dish storage shelf 20 from the weight of the dishes stored in the dish storage shelf 20 while fixing the ball bush 24 for raising and lowering the bottom of the sink S on the top or inside the washing tank 5. Support panel (22) is installed It is fixed.

At this time, in the case of the support panel 22, while one side of the dish storage shelf 20 is fixed to one side of the support panel 22, the ball bush 24 is also fixed to the other side of the support panel 22 When the dish storage shelf 20 is moved up and down by the ball bush 24 with respect to the ball screw 33 that rotates according to the driving of the stepping motor 31, the support panel 22 is also the dish storage shelf 20 Like this, the descending.

In addition, in the built-in dishwasher 1 of the present invention, the lifting device 30 inside the washing tank 5 when the door 10 is opened to accommodate the dishes with food waste into the washing tank 5. Apparatus for raising the dish storage shelf 20 from the sink (S) to the floor, which includes a stepping motor 31 capable of forward and reverse rotation as shown in FIG. A ball screw 33 which is fastened to both sides of the dish storage shelf 20 via a washing tank 5 while one end is fixed to the shaft of the stepping motor 31 to move the dish storage shelf 20 up and down; The ball bush 24 coupled with the ball screw 33 in a fixed state on both sides of the dish storage shelf 20 so that the dish storage shelf 20 can be moved up and down according to the rotation of the ball screw 33. ; Conveying the rotating force of the stepping motor 31 to the ball screw 33 side and at the same time is composed of a transmission belt 32 is installed to be uniformly rotated between each ball screw (33).

In the case of the lifting device 30 configured as described above, when the door 10 of the built-in dishwasher 1 is opened, the ball screw 33 according to the driving of the stepping motor 31, that is, the shaft of the stepping motor 31 once When the ballscrews 33 fastened to both sides of the dish storage shelf 20 through the washing tank 5 in the fixed state rotates, the corresponding action of the ballsbush 24 coupled with the ballscrews 33 is rotated. As the ball bush 24 rises along the ball screw 33, the dish storage shelf 20 also rises above the bottom of the sink S, which is the upper part of the built-in dishwasher 1, from the inside of the washing tank 5. After storing the dishes to be washed in the elevated dish storage shelf 20 as described above, the dish storage shelf 20 is lowered through the operation of the elevating device 30 to be positioned inside the washing tank 5. .

On the other hand, look at the configuration of another embodiment in the lifting device 30 configured as described above, which is a stepping motor 31 capable of forward, reverse rotation as shown in FIG. A driving gear 35 rotatably fixed to one side of the washing tub 5 by a rotating shaft to move the dish storage shelf 20 up and down while being rotated by the rotational force of the stepping motor 31; A driven gear 26 fastened to both sides of the dish storage shelf 20 in a state of meshing with the drive gear 35 to convert the rotational force of the drive gear 35 into a vertical movement of the dish storage shelf 20; ; It is composed of a transmission belt 32 for transmitting the rotational force of the stepping motor 31 to the rotating shaft coupled between the drive gear (35).

Here, one side of the dish storage shelf 20 is a stepping motor 31, which is a lifting device 30a of another embodiment, like the dish storage shelf 20, among the components of the built-in dishwasher 1 of the present invention described above. Sink (S) which is meshed with the driving gear 35 is rotated by receiving the rotational force of the upper and lower linear motion in the washing tank (5) while linearly moving up and down in response to the rotational force of the drive gear (35) A support panel 22 is installed to support the dish storage shelf 20 from the weight of the dishes stored in the dish storage shelf 20 while fixing the driven gear 26 that moves up and down on the floor or inside the washing tank 5. In this case, the drive gear 35 and the driven gear 26 receive the rotation of the stepping motor 31 by the transmission belt 32 and receive the rotational force of the pinion which is forward and reverse rotation and the pinion. It consists of rack gear that moves up and down linearly. The.

Next, Figure 7 is another embodiment of the built-in dishwasher according to the present invention, which is a door 10, the washing tank 5, the dish storage shelf 20, the injection nozzle 15, the lifting as shown in FIG. Washing the food debris on the dishes through the spray water of the spray nozzle 15 installed in the center of the inner bottom surface of the washing tank 5 of the water tank type of the built-in dishwasher 1 of the present invention composed of a device (30) Vibration energy to the dishes stored in the dish storage shelf 20 using the washing water as a medium in a separate manner, that is, the washing water is stored in the washing tank 5 of the tank type in which the spray nozzle 15 is installed. As shown in FIG. 7, the ultrasonic vibrator 40 installed at the bottom outer side of the washing tank 5 is installed so as to be washed by acting.

At this time, among the components of the built-in dishwasher 1a, which is another embodiment of the present invention, the door 10, the washing tank 5, the dish storage shelf 20, the spray nozzle 15, and the lifting device 30 ), The door 10, the washing tank 5, the dish storage shelf 20, the spray nozzle 15, the lifting device 30, which are components of the built-in dishwasher 1 of the present invention shown in FIG. Since the configuration is the same as, duplicate description thereof will be omitted.

In addition, the configuration of another embodiment of the door (10a) and the lifting device (30a) of the built-in dishwasher 1 of the present invention shown in Figures 3 and 6 is also another embodiment of the built-in dishwasher ( Note that it can be applied to 1a).

In addition, the ultrasonic vibrator 40 of the built-in dishwasher 1a which is another embodiment of the present invention vibrates an electric signal supplied by being installed outside the bottom of the water tank-type washing tank 5 capable of storing and storing the washing water. By converting the energy into energy and using the wash water stored in the washing tank 5 as a medium, vibration energy is applied to the dishes stored in the dish storage shelf 20 to generate an interface separation between the dish and the food waste period, and the vibration of the wash water. The food waste separated through the interfacial cleaning is cleaned.

Hereinafter, the operation state of the built-in dishwasher of the present invention will be described in detail with reference to the drawings.

8a and 8b is a state diagram showing the operation of the built-in dishwasher of the present invention.

First, when the operation is pressed by pressing the operation button of the built-in dishwasher (1) of the present invention configured as shown in Figure 1 to clean the dishes with food waste in the finished state as shown in Figure 8a 10) That is, the double door 10 is rotated to the lower left and right sides of the case 3 by the hinge action while each motor of the double door 10 installed on the left and right sides of the upper case (3), the tableware The inlet of the washer 1 is opened.

Then, the lifting device 30 installed in connection with one side of the dish storage shelf 20 located in the washing tank 5 in the state in which the inlet of the dish washing machine 1 is opened as described above, that is, the lower end of the washing tank 5 The stepping motor 31 of the elevating device 30 installed on the bottom of the inner case 3 rotates and is fastened to both sides of the dish storage shelf 20 via the washing tank 5 through the electric belt 32. The rotating force is transmitted to the ball screw 33, and the ball screw 33 rotates in the forward direction according to the rotation of the stepping motor 31 transmitted through the electric belt 32, and the tableware is supported through the support panel 22. In response to the ball bush 24 fixed to one side of the storage shelf 20, the bowl bush 24 is raised along with the ball screw 33, and the dish storage shelf 20 is also washed as shown in FIG. 8B. (5) Ascend above the floor of the sink S, which is the upper part of the built-in dishwasher 1 from the inside. The.

Then, after storing the dishes to be washed in the dish storage shelf 20 raised above the bottom of the sink S as described above, the lowering action of the elevating device 30 described above, that is, the stepping transferred through the electric belt 32. As the ball screw 33 rotates in the reverse direction as the motor 31 rotates, the ball screw 24 is supported by the ball bush 24 fixed to one side of the dish storage shelf 20 through the support panel 22. Along with the lowering of the ball bush 24 along the 33), the dish storage shelf 20 is also lowered to be positioned inside the washing tank 5.

When the dish storage shelf 20 is positioned inside the washing tank 5 through the lowering operation of the elevating device 30 as described above, the door 10 that has been rotated to the lower left and right sides of the case 3 is provided. That is, the double door 10 is closed, the inlet of the dish washer (1) that was opened is sealed, and in conjunction with the washing water through the spray nozzle 15 installed in the lower center of the washing tank (5) dish storage shelf By rotating spraying to the (20) side to clean the food waste of the dishes stored in the dish storage shelf 20 by the sprayed washing water, afterwards in order to use the dish is finished cleaning in the washing tank (5) In the same process as that of raising the dish storage shelf 20, the dish storage shelf 20 may be raised to the bottom of the sink S, and then the dishes which have been washed in the dish storage shelf 20 may be taken out.

As described above, the above-described embodiments are described with reference to the most preferred examples of the present invention, but are not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention. .

In the built-in dishwasher of the present invention, the dish-washing shelf is constructed by a lifting device connected to an internal dish storage shelf of a tank-type washing tank in which the upper part is opened when the door is installed on the top of the dishwasher. By ascending from the sink to the bottom of the sink, the user has to open the door directly when storing or removing the dishes inside a conventional built-in dishwasher configured to open or close the door to the front or top of the dishwasher. To avoid the hassle of users having to bend or unload their utensils by excessively bending, the user can easily clean the dish storage racks raised above the bottom of the sink from the washing tank through the elevator while the user is standing in the sink. The dishes are stored or washed It can be used to take out and use utensils.

In addition, by installing an ultrasonic vibrator on the bottom outside of the washing tank of the built-in dishwasher of the present invention, separately from the method of washing the food residue on the tableware by spraying the washing water spray of the spray nozzle installed in the center of the inner bottom surface of the washing tank In the state in which the washing water is stored in the tank-type washing tank, vibration energy is applied to the dishes stored in the dish storage shelf using the washing water as a medium, so that the interface separation between the dishes and the food waste period on the surface of the dishes is smooth. In addition, there is also an effect such as to clean the food residue separated from the tableware through vibration of the wash water.

Claims (8)

In the built-in dishwasher for being built-in to the sink and washing the dishes by spraying the washing water by the spray nozzle; When the door is installed at the top of the dishwasher, the dish storage shelf is raised from the washing tank to the bottom of the sink by the elevating device connected to the inside of the tank-type washing tank in which the upper part is opened. Built-in dishwasher, characterized in that configured to be used to take out. In the built-in dishwasher for being built-in to the sink and washing the dishes by spraying the washing water by the spray nozzle; When the door is installed at the top of the dishwasher, the dish storage shelf is raised from the washing tank to the bottom of the sink by the elevating device connected to the inside of the tank-type washing tank in which the upper part is opened. Built-in dishwasher for taking out and using the built-in dishwasher, the ultrasonic vibrator installed outside the bottom of the washing tank to wash by applying the vibration energy to the dishes stored in the dish storage shelf with the washing water stored in the washing medium as a medium Built-in dishwasher, characterized in that configured to include. According to claim 1 or claim 2, wherein the lifting device is a stepping motor capable of forward and reverse rotation; A ball screw which is fastened to both sides of the dish storage shelf via a washing tank with one end fixed to the stepping motor shaft to move the dish storage shelf up and down; A ball bush coupled to the ball screw in a fixed state on both sides of the dish storage shelf so that the dish storage shelf can be moved up and down according to the rotation of the ball screw; Built-in dishwasher characterized in that it is configured to transmit the rotational force of the stepping motor to the ball screw and at the same time connected to each other to achieve a uniform rotation between the ball screw. According to claim 1 or claim 2, wherein the lifting device comprises a stepping motor capable of forward and reverse rotation; A driving gear rotatably fixed to one side of the washing tank by a rotating shaft to move the dish storage shelf up and down while rotating by receiving the rotational force of the stepping motor; A driven gear that is fastened to both sides of the dish storage shelf in mesh with the drive gear to convert the rotational force of the drive gear into a vertical movement of the dish storage shelf; Built-in dishwasher, characterized in that consisting of an electric belt for transmitting the rotational force of the stepping motor to the rotating shaft coupled between the drive gear. The built-in dishwasher according to claim 3, further comprising a support panel on one side of the dish storage shelf to support the dish storage shelf while fixing the ball bush. According to claim 4, One side of the dish storage shelf is further provided with a support panel for supporting the dish storage shelf while fixing the driven gear meshed with the drive gear, the drive gear is a pinion, the driven gear is made of a rack gear Built-in dishwasher, characterized in that. The built-in dishwasher according to claim 1 or 2, wherein the door is formed of double left and right doors, and the inlet of the dish washing machine is opened while being rotated to both left and right sides by a motor driving. According to claim 1 or claim 2, wherein the door is configured to ascend above the sink bottom with the dish storage shelf when the dish storage shelf, the lower end of the door when the dish storage shelf is raised when the dish storage shelf is raised Built-in dishwasher, characterized in that the shelf is installed and fixed so that the door also rises above the floor of the sink.

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