KR101980481B1 - A structure for installing frequency elements of ultra sonic creaner - Google Patents

Abstract

The present invention relates to an oscillator mounting structure for an ultrasonic cleaner, to install, on a bottom or side surface of the ultrasonic cleaner, an ultrasonic oscillator comprising front and rear oscillation elements (220, 230), piezoelectric ceramic elements (205, 206) receiving current through terminals (240, 250) electrically connected therebetween, and an oscillation plate (210) exposed to the inside of the cleaner. According to the present invention, the ultrasonic oscillator (200) is mounted to allow an upper housing (300), which receives the oscillation plate (21) to be exposed and has a flange (310) extended in a lateral direction, to be coupled to allow the flange (310) to seal the upper surface of the circumferential part of a hole formed in the ultrasonic cleaner, and a cup-shaped lower housing (400) having a hole formed on a bottom to withdraw wires connected to the terminals (240, 250) is coupled to the bottom part of the upper housing (300), thereby providing an effect of simplifying installation and maintenance of the ultrasonic oscillator. Moreover, a mounting structure for the ultrasonic oscillator is simplified and the number of parts required for mounting is reduced, thereby reducing manufacturing costs. Moreover, the wire is withdrawn through the hole formed on the bottom of the lower housing, thereby preventing short circuit and electric shock accidents.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a structure for mounting an ultrasonic cleaner,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrator mounting structure for an ultrasonic cleaner, and more particularly, to a vibrator mounting structure for an ultrasonic cleaner having an improved structure for easily and safely installing an ultrasonic vibrator in an ultrasonic cleaner that performs cleaning by oscillating ultrasonic waves.

In the past, housewives used their own hand cleansers to wash dishes and fruits, but in the process, they could damage tableware or fruit, and they could be damaged by the curling of vegetable or fruit, The wife had difficulty.

In recent years, an ultrasonic washing machine has been developed and used for cleaning fruit or tableware using ultrasonic waves. Such an ultrasonic washing machine can be applied to ultrasonic waves generated from an ultrasonic vibrator without damaging fruits or dishes, It is a way to remove food waste or fruit impurities called water.

However, in the conventional cleaning method using ultrasonic waves, it is general that an ultrasonic generator for generating ultrasonic waves and vibrating the generated ultrasonic waves is fixed to the cleaning part through welding or the like. Therefore, when the ultrasonic generator is broken or damaged, the entire ultrasonic wave cleaner must be replaced or the ultrasonic generator must be replaced or repaired. Thus, there is a problem that maintenance is difficult.

In order to solve this problem, the ultrasonic cleaner proposed in Korean Patent No. 10-1761344 (registered on July 19, 2017) uses ultrasonic waves using current supplied from the outside as shown in FIG. 1 The ultrasonic generator including the vibrator and the diaphragm to be generated is installed on the bottom and the wall of the ultrasonic cleaner so that the vibrator is provided on the outside of the cleaning space, with the insulating plate, the first bolt, the hermetic ring and the cap. The vibrator is provided outside the washing space so that the (+) and (-) poles are directed in different directions so as not to cause crosstalk, and the vibrator is detachably attached to the insertion portion by the first bolt .

However, there has been a concern that a wiring for supplying an electric current to the vibrator is exposed and contact with other objects in the vicinity, or a safety accident such as an electric shock due to a short circuit has occurred.

Korean Registered Patent No. 10-1761344 (registered on July 19, 2017)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ultrasonic cleaner in which a vibration plate of an ultrasonic generator is embedded in a housing and a housing is easily mounted on a floor or a wall of a dishwasher, And the current supply wiring is drawn out through the hole formed in the lower end of the housing, thereby preventing a short circuit and preventing the occurrence of an electric shock accident.

In order to accomplish the above object, the vibrator mounting structure for an ultrasonic cleaner according to the present invention comprises a front vibrating element and a rear vibrating element, piezoelectric ceramic elements to which electric current is supplied through terminals electrically connected thereto, An ultrasonic transducer mounting structure for an ultrasonic cleaner in which an ultrasonic vibrator having an exposed diaphragm is installed on a bottom surface or a side surface of an ultrasonic cleaner,

The upper housing housing the ultrasonic vibrator so as to expose the diaphragm and having a laterally extending flange, the flange sealingly fitting to the upper surface of the hole peripheral portion formed in the ultrasonic cleaner,

And a cup-shaped lower housing having a hole for drawing out electric wires connected to the terminals is coupled to a lower end of the upper housing.

Bolts may be integrally joined to a plurality of places on the bottom surface of the flange, and the bolts may be passed through the bottom of the ultrasonic cleaner under the interposition of the sealing material.

In order to accommodate the electric wires connected to the terminals of the ultrasonic transducer into the lower housing, the lower housing is provided with an opening having a preset width from the one side extending downward to the center of the bottom, And a cover formed as a bottom portion.

The bottom portion is formed to be shorter than the length of the opening formed at the bottom of the lower housing 400, and a hole is formed at the bottom of the lower housing.

According to an aspect of the present invention, there is provided an ultrasonic transducer, comprising: an upper housing having an ultrasonic transducer embedded therein; a lower housing coupled to the lower housing to receive the lower portion of the ultrasonic transducer; By installing the ultrasonic transducer in the housing, the ultrasonic transducer can be installed and maintained in a very simple manner, the mounting structure of the ultrasonic transducer can be simplified, the number of components required for mounting can be reduced, The electric wire can be taken out through the hole formed at the lower end to prevent the occurrence of electric leakage and electric shock accident.

1 is a schematic cross-sectional view showing a structure for mounting an ultrasonic vibrator in a conventional ultrasonic cleaner.
2 is a schematic perspective view of an ultrasonic vibrator;
3 is an exploded perspective view of a housing adapted to receive the ultrasonic vibrator according to the present invention and to be mounted on the washer.
FIG. 4 is an exploded perspective view showing the ultrasonic vibrator mounting structure of FIG. 2;
FIG. 5 is a cross-sectional view of the ultrasonic cleaner with the ultrasonic vibrator mounted thereon using the housing of FIG. 2;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.

2 to 5, the ultrasonic transducer 200 includes piezoelectric transducers 205 and 206 to which current is supplied through a front transducer 220 and a rear transducer 230, and terminals 240 and 250 electrically connected to each other, And a diaphragm 210 exposed to the inside of the washer.

A tubular upper housing 300 having upper and lower openings for accommodating the ultrasonic vibrator 200 and a lower housing 400 having a cup-shaped lower end closed are provided.

The upper housing 300 is formed with a flange 310 extending laterally in the shape of a tube and the flange 310 is integrally welded to the upper surface of the hole peripheral portion formed in the ultrasonic cleaner, 270 may be disposed. The length of the upper housing 300 is such that the lower end of the upper housing 300 is disposed on the terminal 240 on the upper side of the ultrasonic transducer.

For example, bolts 320 are integrally joined to the bottom surface of the flange 310 at a plurality of places, and the bolts 320 are inserted through the bottom of the ultrasonic cleaner with the sealing material 270 interposed therebetween.

The ultrasonic transducer 200 is inserted into the upper housing 300 such that the upper diaphragm 210 is exposed. At this time, a screw is formed on the outer side of the ultrasonic transducer 200, Or the outer surface of the ultrasonic transducer may be fixed to the inner surface of the upper portion of the upper housing 300 with an adhesive, or an adhesive may be applied to the threaded portion to be engaged and fixed.

A screw 340 is formed on the outer surface of the lower end of the upper housing 300 and a screw 410 formed on the inner surface of the upper end of the lower housing 400 is coupled to the lower housing 400 at the lower end of the upper housing 300, Are coupled by a screw fastening method.

The lower housing 400 is formed with an opening 420 having a predetermined width extending downward from one side of the lower housing 400 to the center of the floor, and the opening 420 is sealed by the cover 450. The cover 450 is formed of a side portion 460 and a bottom portion 470. The bottom portion 470 is formed to be shorter than the opening formed in the bottom of the lower housing 400, A hole 480 is formed in the bottom of the lower housing 400 even after the opening of the lower housing 400 is closed by the lower housing 400.

The opening 420 allows the wires connected to the terminals 240 and 250 of the ultrasonic transducer to pass therethrough. The wires connected to the terminals before the lower housing is screwed into the upper housing are connected to the openings of the side portions of the lower housing (480), and then the lower housing is screwed into the upper housing by assembling.

Thus, the electric wires connected to the terminals are protected by the lower housing, are not exposed to the peripheral portion in the space below the washing machine, and are protected by the leakage water even if it is possible to prevent electric leakage or electric shock.

Further, since the upper housing is assembled and mounted in the hole formed in the cleaner in a state where the ultrasonic vibrator is housed in the upper housing, the ultrasonic vibrator can be easily attached and detached, so that the installation and maintenance work can be performed very easily.

The present invention can be applied to the installation of an ultrasonic vibrator in an ultrasonic cleaner.

200: Ultrasonic vibrator 205,206: Piezoelectric ceramic element
210: diaphragm 220, 230:
240, 250: terminal 270: sealing material
300: upper housing 310: flange
320: bolt 400: lower housing
420: opening 460: side
470: bottom part 480: hole

Claims (4)

Piezoelectric ceramic elements 205 and 206 to which electric current is supplied through the front and rear vibrating elements 220 and 230 and terminals 240 and 250 electrically connected to each other and a diaphragm 210 exposed to the inside of the washer The upper housing 300 is installed on the bottom or side of the ultrasonic cleaner and has a laterally extended flange 310 receiving the diaphragm 210. The flange 310 is connected to the ultrasonic cleaner And the ultrasonic vibrator 200 is mounted so as to be sealingly coupled to an upper surface of a hole formed around the hole. In the ultrasonic vibrator mounting structure for an ultrasonic cleaner,
A cup-shaped lower housing 400 having a hole for drawing out electric wires connected to the terminals 240 and 250 is coupled to a lower end of the upper housing 300,
An opening 420 having a preset width from the one side to the center of the bottom is formed in the lower housing 400 so as to allow the wires connected to the terminals 240 and 250 of the ultrasonic vibrator to pass therethrough, Wherein the opening (420) is closed by a cover (450) formed of a side portion (460) and a bottom portion (470).
The method according to claim 1,
The bolts 320 are integrally joined to the bottom surface of the flange 310 at a plurality of places and the bolts 320 are passed through the bottom of the ultrasonic cleaner with the sealing material 270 interposed therebetween. Ultrasonic vibrator mounting structure.
delete The method according to claim 1,
The bottom portion 470 is formed to be shorter than the opening portion formed at the bottom of the lower housing 400 so that a hole 480 is formed at the bottom of the lower housing 400. .

Images