KR20210008622A - Ultrasonic dish washer - Google Patents

Abstract

The present invention relates to an ultrasonic dishwasher to shorten the pre-washing time of tableware and increase the washing power. According to the present invention, the ultrasonic dishwasher comprises: a washing tub (100) having sidewalls provided on all sides of a bottom plate (101) and containing washing water while an upper part is in an open state; a plurality of vibrator modules (110) attached to the bottom surface of the bottom plate (101) of the washing tub (100); a heater (120) installed in the washing tub (100) to heat the washing water; a bubble tube (130) installed to be spaced apart at a certain height on the bottom plate (101) and including a plurality of small air holes (131) to supply air to the washing water to generate a large amount of bubbles; a support net (140) formed of a grid mesh, installed on the bubble tube (130), and allowing tableware to be washed to be placed thereon; and an operation unit (150) installed on one side of the washing tub (100) and provided with several buttons to operate the vibrator modules (110) and the bubble tube (130) in accordance with a driving program set in a control unit. Accordingly, when the control unit connected to the operation unit (150) receives an operation signal through a start/stop button, the control unit alternately generates ultrasonic waves and bubbles as many times as the selected number of cycles, wherein one cycle repeats set or selected ultrasonic operation, bubble operation and delay a predetermined number of times.

Description

Ultrasonic dish washer {Ultrasonic dish washer}

The present invention relates to an ultrasonic dishwasher, and in more detail, when washing dishes using ultrasonic waves and bubbles, foreign substances such as food debris on the dishes can be more efficiently removed, thereby significantly reducing the operating time for washing. It relates to an ultrasonic dishwasher that can be used.

In general, it takes a long time and consumes a lot of manpower to incur a lot of labor costs for a worker to manually wash and rinse a large number of dishes provided with food to various guests in a restaurant or cafeteria.

Since it takes a lot of time to wash a large amount of dishes by hand, it is difficult for businesses to supply dishes to other customers in a timely manner, so most catering establishments use dishwashers for most businesses to wash large amounts of dishes. I use it a lot.

The commercial dishwasher is divided into a general dishwasher for washing, rinsing, and sterilizing by spraying washing water and rinsing water, and an ultrasonic dishwasher for washing by vibrating water molecules with ultrasonic waves.

In most of the general dishwashers, a cover constituting a washing chamber is installed on the upper portion of the washing machine body in an elevating manner, and an upper washing nozzle and a pair of upper washing nozzles are provided at the top and bottom of the washing chamber in which a rack containing dishes to be washed is placed. A pair of lower washing nozzles and lower rinse nozzles are installed in a rotating manner.

In such a general dishwasher, the steps of washing dishes in the rack with washing water supplied and sprayed to the upper and lower washing nozzles according to the driving program sequence, and rinsing the dishes with high-temperature rinsing water supplied and sprayed to the upper and lower rinsing nozzles and It is supposed to carry out the step of carrying out disinfection.

However, in recent years, the use of dishwashers using ultrasonic waves is gradually increasing in order to efficiently wash a large amount of dishes in a restaurant in a faster time.

In the ultrasonic dishwasher, when the ultrasonic generator installed on the bottom of the washing tank is operated in a state in which food is soaked in the washing water of the washing tank and contaminated dishes are immersed, a wave generated by alternating contraction and expansion occurs due to the vibration of the molecules between the molecules of the washing water. It cleans the surface of the object to be cleaned (tableware) and deep inside in a short time by the shock wave that releases strong energy while destroying the cohesive force.

As a prior art for such an ultrasonic dishwasher, there is a “ultrasonic dishwasher” (hereinafter referred to as “prior art 1”) of Korean Patent Registration No. 10-1974789 (announced on May 02, 2019) disclosed in the prior art document below. .

The prior art 1 is a washing tank provided with side walls on all sides of a bottom plate and an open top; A plurality of vibrator modules attached to the bottom plate of the washing tank; A heater installed in the washing tank to heat the washing water; A bubble tube installed on the bottom plate to supply fine bubbles to the washing water by gas pressure; A grid placed on top of the bottom plate to place dishes to be washed; The heater, the vibrator module, and the operation button and the display window for driving the bubble tube are installed on the front of the housing part forming the washing tank.

As another prior art, there is an "ultrasonic dishwasher with improved washing efficiency" (hereinafter referred to as'prior art 2') of Korean Patent Registration No. 10-1973928 (announced on April 29, 2019) disclosed in the following patent document.

In the prior art 2, when installing a plurality of ultrasonic vibrating units on the bottom of a washing unit with a washing space at the top, the ultrasonic vibrator is installed with a silicone adhesive member that absorbs the noise and vibration of the ultrasonic vibrator that vibrates to the washing machine body. It is an ultrasonic dishwasher that minimizes noise and vibration generated by the ultrasonic wave, thereby improving the cleaning efficiency by improving the ultrasonic concentration efficiency.

Another prior art is "Attachment Structure of Vibrator of Ultrasonic Dishwasher" (hereinafter referred to as'Prior Technology 3') of Korean Utility Model Publication No. 1993-0007484 (Announcement on October 30, 1993) disclosed in the following patent document. .

The prior art 3 is characterized in that a plurality of insertion holes are formed in the bottom plate of the cleaning tank, the vibrators are forcibly fitted into each insertion hole, and an adhesive is applied to the periphery thereof.

Korean Patent Registration No. 10-1974789 (announced on May 02, 2019) "Ultrasonic dishwasher" Korean Patent Registration No. 10-1973928 (Announcement on April 29, 2019) "Ultrasonic dishwasher with improved washing efficiency" Korean Utility Model Announcement No. 1993-0007484 (Announcement on October 30, 1993) "Attachment Structure of Vibrator for Ultrasonic Dishwasher"

Most of the ultrasonic dishwashers including the prior art 1, 2, and 3 are programmed to simultaneously perform the process of applying ultrasonic vibrations to the washing water with a vibrator module and supplying microbubbles to the washing water through a bubble tube. There is a problem of this weakening.

In addition, when installing the vibrator module on the bottom plate, the vibrator module was inserted into each of the punched areas after perforating in several places on the bottom plate and fixed with an adhesive. This is a possibility of leakage due to the occurrence of gaps in the bonding area during use. There is a problem that is harmful to the human body because the adhesive component dissolves in the washing water inside.

In addition to the bubble pipe and the grid on the bottom plate, a space in which the heater must be installed overlapping, so the area on which dishes are placed on the grid is reduced, so there is a problem that the amount of washing per time is small, and the heater exposed to the washing room There is a problem in that the lifespan is shortened because food residues easily stick.

Accordingly, the present invention was developed to improve the problems of the prior art, and an object of the present invention is to increase the function as much as possible without interfering with each other by using the ultrasonic wave and the bubble at the same time and using each sequentially. It is to provide an ultrasonic cleaner.

Another object of the present invention is to provide an ultrasonic cleaner that can be installed more quickly without fear of leakage when an ultrasonic vibrator module is installed on the bottom plate of a cleaning tank, and can easily control the intensity of ultrasonic waves from a control unit.

Another object of the present invention is to provide an ultrasonic cleaner capable of increasing the washing room area and extending the life of the heater by providing a heater that heats the washing water of the washing tank in a buried type so as to safely protect it from food waste.

The present invention as described above is a box-type washing tank containing washing water to achieve the above object; A plurality of vibrator modules attached to the bottom of the bottom plate of the washing tank; A heater installed in the washing tank; A bubble pipe installed on the bottom plate and provided with a myriad of small air holes on one side to generate a large amount of bubbles (air bubbles) by supplying air to the washing water; A support net formed in a grid shape and installed on the bubble tube, on which dishes to be washed are placed; It is installed on one side of the washing tank and is composed of a control unit equipped with several buttons to operate the vibrator module and the bubble tube by the control unit; however, depending on the button selection of the control unit, the ultrasonic wave and the bubble are operated alternately for a certain period of time, or It is characterized in that the bubbles are individually operated.

Another object of the present invention is to integrally form an ultrasonic concentrator that protrudes upward from the bottom plate of the washing tank to each part where the vibrator module is to be installed, so that the vibrator module can be installed without fear of leakage, and the ultrasonic concentrator through the ultrasonic concentrator improves cleaning efficiency. It can be achieved by making it augmented.

Another object of the present invention is to form a heater-embedded portion with an open upper surface on the bottom plate of the washing tank to a certain depth so that the heater is installed in a buried type under the bottom plate to secure a larger cleaning space, and If a cover with countless balls is installed, the heater can be safely protected from food debris, thus achieving the purpose.

The present invention does not operate the ultrasonic wave and the bubble at the same time, and does not interfere with each other's interaction with each other by sequentially operating the ultrasonic wave and the bubble, so that each function can be maximized, thereby reducing the preparation time of dishes and increasing the cleaning power. It works.

In addition, when installing the vibrator module on the bottom plate of the washing tank, there is no risk of leakage, and it is possible to concentrate ultrasonic waves to improve cleaning power, and if necessary, ultrasonic waves and bubbles can be used alone. There is an effect that can be used in a variety of ways, such as removing pesticide residues.

In addition, since the heater can be safely protected from food debris, it has the effect of extending the lifespan, increasing the washing room area, reducing cleaning time and reducing water, electricity, gas, and detergent.

1 is a cross-sectional view showing the internal structure of an ultrasonic dishwasher in which the present invention is implemented
2 is a plan view showing the structure of an ultrasonic dishwasher in which the present invention is implemented
3 is a state diagram of a vibrator module, a bubble tube, and a support net installed on the bottom plate of the washing tank of the present invention
4 is a state diagram in which a heater is installed in a buried type on the bottom plate of the washing tank of the present invention
Figure 5 is a partial perspective view showing a state in which the rack support of the present invention is provided on one side of the washing tank

Hereinafter, a technical configuration and operation capable of effectively achieving the above object of the present invention will be described in detail with reference to the accompanying drawings as a preferred embodiment.

1 is a cross-sectional view showing the internal structure of an ultrasonic dishwasher in which the present invention is implemented, FIG. 2 is a plan view showing the structure of an ultrasonic dishwasher in which the present invention is implemented, and FIG. 3 is a vibrator module in the bottom plate of the washing tank of the present invention. It is the state diagram of the bubble pipe and the support net installed.

The ultrasonic dishwasher of the present invention illustrated in this manner is composed of a washing tank 100, a vibrator module 110, a heater 120, a bubble tube 130, a support net 140, and an operation unit 150.

The washing tank 100 is provided with a washing chamber in the shape of a casing with sidewalls on all sides of the bottom plate 101 of a predetermined size, so that the washing water is contained at a predetermined level, and the upper portion of the washing chamber is in an open form, and the washing tub 100 ) A support wall 102 of a predetermined height is provided above the side wall of the rear.

When the washing chamber of the washing tank 100 is formed to form a rectangular shape having a width of a horizontal side larger than that of a vertical side, a larger amount of the object to be washed can be processed than a square washing chamber.

The vibrator module 110 is installed by being attached to a predetermined portion of the bottom of the bottom plate 101 constituting the cleaning tank 100. At this time, the bottom plate 101 of the washing tank 100 is integrally formed with an ultrasonic concentrator 103 that slightly protrudes upward for each portion where the plurality of vibrator modules 110 are to be installed.

As described above, the ultrasonic concentrator 103 on which the vibrator module 110 is installed is formed by forming the bottom plate 101 to protrude integrally, so that the vibrator module 110 can be safely attached without fear of leakage. In addition, since the ultrasonic waves generated by the vibrator module 110 intensively reach the dishes contained in the washing water through the ultrasonic concentrator 103 slightly protruding upward, washing efficiency may be increased.

The heater 120 is installed in the washing tub 100 to heat the washing water in the washing tub 100 according to a user's operating temperature or a set temperature, and the heater 120 is set to operate automatically when a dishware mode is selected, When other modes (fruit/vegetable/seafood) are selected, it is set not to operate.

4 is a diagram illustrating a state in which a heater is installed in a buried type on the bottom plate of the washing tank of the present invention. Thus, as shown in the bottom plate 101 of the washing tank 100, a hatter buried portion 104 with an open top surface is formed to a predetermined depth so that the heater 120 is embedded in the bottom plate 101 In addition, a cover 160 having a myriad of micropores 161 formed thereon is installed on the upper surface of the hatter embedding part 104.

Then, since only the bubble pipe 130 and the support net 140 need to be placed on the bottom plate 101, more space for dishes on the support net 140 can be secured, thereby increasing the amount of dishes that can be washed at a time. Can reduce the cleaning time.

In addition, heat transfer of the heater 120 that heats the washing water through the micropores 161 of the cover 160 placed on the upper surface of the hatter embedding part 104 is facilitated. At this time, since the heater 120 is installed in a buried type as far as possible from food debris that is washed from the tableware and falls off, the life of the heater 120 can be prolonged since it is safely protected without fear of food debris sticking.

The bubble tube 130 is installed to be spaced apart at a certain height on the bottom plate 101 as shown in FIG. 3, and a small air hole 131 of a size to generate a large amount of bubbles (air bubbles) by supplying air to the washing water. There are countless of these.

Here, it is preferable that the air holes 131 are provided downwardly on the bottom surface of the bubble tube 130 so as to face all of the bottom plate 101. Then, even if food debris falling from the dishes to be washed falls and accumulates on the surface of the bubble tube 130, the air holes 131 are not likely to be clogged, so that the bubble operation can be smoothly performed.

The support net 140 is formed in a grid-shaped net to place dishes, fruits, vegetables, seafood, etc., which are objects to be washed, and is placed on the bubble tube 130 and is spaced apart from the bubble tube 130 by a predetermined interval. There are bridges in several places on all sides so that it can be placed.

Here, when the washing room of the washing tank 100 has a rectangular shape with a larger horizontal side, the support net 140 is also installed on the floor plate 101 in a rectangular shape with a larger horizontal side. In this case, the present invention is illustrated in FIGS. 1 and 2 As shown in the above, when a folding hinge part 141 is provided in the center of the rectangular support net 140 to perform partial cleaning or AS, select the left or the right of the support net 140 around the hinge part 141 So that it could be uploaded.

That is, in the related art, even if cleaning or AS is required only in one part, not the whole, there is a hassle of having to lift out the entire support net after lifting all of the object to be cleaned placed on the support net, but the present invention is the required side of the left and right side. After lifting only the object to be washed, the support net 140 of the half can be raised with the hinge part 141 as a starting point, so there is convenience in use.

The control unit 150 is provided with a power on/off button, a start/stop button, a tableware and fruit/vegetable selection button, an ultrasonic/bubble operation time selection button, a heater selection button, a continuous bubble button, and a number of buttons and display windows. 100) It is installed on one side.

Here, as for the operation unit 150, it is preferable to install the operation unit 150 on the support wall 102 provided at a predetermined height on the rear side wall of the washing tank 100 as shown in FIGS. 1 and 2. Then, since the operation unit 150 is located at the user's eye level, there is convenience in use.

In addition, when the level of the washing water filled in the washing tub 100 is lowered and replenishment is required, a water supply 180 connected to the direct water may be provided on the support wall 102 of the washing tub 100 so that the washing water can be easily replenished at any time.

In the drawings of FIG. 5, an unexplained reference numeral 170 is a rack support provided on one side of the upper surface of the washing tank 100, and is located on one side so that the rack can be moved along the support wall 102 when rinsing the object to be washed in the rack. A wall hanging part 171 is provided.

In the present invention, it is preferable to repeat the operation of the ultrasonic wave and the bubble alternately for a predetermined time according to the selection of the button of the operation unit 150, and in addition, the operation of only ultrasonic waves or only the bubbles may be performed.

Here, when the ultrasonic energy is emitted to the washing water, which is a liquid, contraction and expansion occur alternately due to the vibration of molecules, and the wave propagates through the washing water. When the ultrasonic energy is further increased, the cohesive force between the liquid molecules is destroyed and tens of thousands of microscopic cavities are generated. This is a phenomenon called cavitation, which is a phenomenon called cavitation. Separate and wash foreign substances deep inside the unit without damaging the dishware to be washed.

And the bubble caused by the air supplied through the bubble tube 130 forms air bubbles in the water to move and mix detergents (activators), and also change the angle and position of receiving ultrasonic waves by moving the dishes to be washed. It serves to increase the cleaning power through ultrasonic waves.

At this time, as in the prior art and the prior art, if the ultrasonic waves and bubbles are operated at the same time, they interfere with each other and reduce their functions by half. Therefore, the washing function by ultrasonic waves decreases, and the movement of detergents due to the bubbles decreases, and the movement of dishes is reduced. The cleaning power decreases.

Accordingly, in the present invention, when the control unit connected to the operation unit 150 receives an operation signal through the start/stop button, the set or selected ultrasonic operation time + bubble operation time + delay time is repeated a predetermined number of times. It is characterized in that the bubbles are operated alternately.

For example, an ultrasonic operation time of 60 seconds selected between 20 seconds and 120 seconds + a bubble operation time of 10 seconds selected between 10 seconds and 30 seconds + delay time (about 2 seconds) is repeated 3 times as 1 cycle and 15 times. When the number of cycles is selected, the heater 120 is operated and only ultrasonic waves are operated for 60 seconds, so that ultrasonic vibrations are well applied to the dishes.

After that, when the operation time of 60 seconds is over, the ultrasonic wave is stopped, and the activator input and the bubble-only operation are performed for 10 seconds, so that the movement and mixing of the activator are satisfactory, and the process of having a predetermined delay time is selected as one cycle. The number of cycles (15) is repeated.

If the ultrasonic waves and bubbles are operated separately as described above, there is no risk of interfering with their actions, and the mixing of detergents and the movement of the dishes are facilitated, thereby increasing the washing power of the dishes.

According to the present invention, an ultrasonic intensity control, an ultrasonic operation time, a bubble operation time, and a selection of continuous bubbles can be selected through the operation unit 150 provided with a button having a plurality of functions. And, if necessary, by starting the selection of the operation time from '0', only the ultrasonic wave can be operated without using the bubble.

And if you want the sequential operation of ultrasonic + bubble as needed, you can select variously the ultrasonic operation time and bubble operation time at an arbitrary ratio. If you want only the bubble, you can use only the bubble by selecting the continuous bubble button. It can be used in various ways depending on the vegetable/seafood mode.

100: washing tank 101: bottom plate
102: support wall 103: ultrasonic concentrator
104: heater insert 110: vibrator module
120: heater 130: bubble tube
131: air hole 140: support net
141: hinge part 150: operation part
160: cover 161: micropores
170: rack support 180: water supply

Claims (5)

In configuring an ultrasonic dishwasher,
A washing tank 100 provided with side walls on all sides of the bottom plate 101 to contain washing water;
A plurality of vibrator modules 110 attached to the bottom of the bottom plate 101 of the washing tank 100;
A heater 120 installed in the washing tank 100 to heat the washing water;
A bubble pipe 130 provided on the bottom plate 101 and provided with a myriad of small air holes 131 to supply air to the washing water to generate a large amount of fine bubbles;
A support net 140 installed on the bubble tube 130 and on which dishes to be washed are placed;
An operation unit 150 installed on one side of the washing tank 100 and provided with several buttons and display windows to operate the vibrator module 110 and the bubble tube 130 according to a set driving program of the control unit;
The ultrasonic dishwasher, characterized in that the ultrasonic dishwasher is configured to repeatedly operate the ultrasonic wave and the bubble alternately for a certain period of time according to a button selection of the operation unit 150, or to perform a continuous operation of only the ultrasonic wave or only the bubble.
The method of claim 1,
The control unit 150 includes a power on/off button, a start/stop button, a tableware and fruit/vegetable selection button, an ultrasonic/bubble operation time selection button, a heater selection button, a continuous bubble button, and a plurality of buttons,
The control unit connected to the operation unit 150 alternates between the ultrasonic wave and the bubble as many as the selected cycle number by repeating the set or selected ultrasonic operation time + bubble operation time + delay time a predetermined number of times when receiving the operation signal through the start/stop button. Ultrasonic dishwasher, characterized in that to operate as.
The method of claim 1,
The control unit 150 includes a power on/off button, a start/stop button, a tableware and fruit/vegetable selection button, an ultrasonic/bubble operation time selection button, a heater selection button, a continuous bubble button, and a plurality of buttons to adjust the ultrasonic intensity, Allows selection of ultrasonic operation time, bubble operation time, and continuous bubble,
Bubble operation time selection starts from '0' so that only ultrasonic waves can be operated.
An ultrasonic dishwasher, characterized in that when a sequential operation of ultrasonic waves + bubbles is desired, an ultrasonic operation time and a bubble operation time can be selected at an arbitrary ratio.
The method of claim 1,
The bottom plate 101 of the washing tank 100,
By integrally forming the ultrasonic concentrator 103 protruding upward for each part where the vibrator module 110 is to be installed,
An ultrasonic dishwasher, characterized in that it is possible to easily attach the vibrator module 110 without the risk of leakage, and that cleaning efficiency is increased by focusing ultrasonic waves through the ultrasonic concentrator 103.
The method of claim 1,
In the bottom plate 101 of the washing tank 100, a hatter-embedded part 104 with an open top surface is formed to a predetermined depth so that the heater 120 is installed in a buried form under the bottom plate 101,
An ultrasonic dishwasher, characterized in that a cover 160 having a myriad of micropores 161 formed thereon is installed on the upper surface of the hatter embedding part 104 so that the heater 120 is protected from food waste.

Images