KR102386985B1 - Fastening structure of vibrator for ultrasonic cleaner - Google Patents

Abstract

The present invention relates to a vibration generating device for applying ultrasonic waves to washing water on a washing machine, and as a feature of its configuration, it has a stopping jaw 11 in close contact with the upper end of a sealing 2 attached to the washing machine, and a stopping jaw ( 11) and a diaphragm 10 having a screw thread 13 as an outer surface extending vertically; A body 21 extending to the lower side of the diaphragm 10 and protruding to penetrate the seal 2 is provided, and a thin plate piezoelectric element 23 is provided on the body 21 to face left and right at a predetermined distance. the vibrator 20; and a surface processing process (S1), a washing process (S2), a nylon MESH mounting process (S3), an adhesive application process (S4), and a vibrator bonding process (S5) in order to bond and fix the diaphragm 10 and the vibrator 20 to each other. ), a curing process (S6), and a coupling means (30) for integrating through a series of processes of a cooling process (S7); characterized in that it comprises a.
Accordingly, the present invention supplements the configuration of the airtight structure based on the combination method of the diaphragm and the vibrator as an integral part to maintain the bonding force with the diaphragm to improve durability, and to maintain airtightness to block water leakage as well as to prevent gap, vibration and noise It exhibits excellent performance, such as this remarkably improved, and the product's performance is significantly superior.

Description

Fastening structure of vibrator for ultrasonic cleaner

The present invention relates to a fastening structure of a vibration generating device for an ultrasonic washing machine, and more particularly, by supplementing the configuration of the airtight structure based on the coupling method of the vibration plate and the vibrator in one piece, to maintain the bonding force with the vibration plate, improve durability, and airtightness It is related to the fastening structure of the vibration generator for ultrasonic cleaners, which exhibits excellent performance, such as significantly improving the performance of preventing leakage, vibration, and noise, as well as blocking water leakage by maintaining the product.

In general, the ultrasonic cleaner is to wash objects such as dishes or fruits using ultrasonic waves, and is implemented by installing a plurality of ultrasonic vibrators that generate ultrasonic waves at the bottom of a water tank in which an object to be washed, such as dishes, is accommodated. At this time, the ultrasonic vibrator is coupled to the coupling hole formed at the bottom of the water tank, and a seal is installed between the vibrator and the coupling hole to prevent water leakage.

In such an ultrasonic cleaner, ultrasonic waves generated from a vibrator generate resonance in the washing water contained in a water tank, and the resonance effectively separates foreign substances attached to the object to be cleaned, thereby enabling clean washing without using detergent. At this time, depending on the washing capacity or the size of the washing tank, several to dozens of vibrators are installed on the bottom of the washing tank.

However, in the ultrasonic cleaner, since the elasticity of the seal installed between the water tank coupling hole and the vibrator decreases over time and the deformation proceeds, the coupling state between the coupling hole and the vibrator is released and water leakage occurs from a certain moment, and time As time goes on, there is a gap between the bottom of the washing tank and the vibrator, and as well as noise, the vibrator breaks down or the washing ability of the washing machine is lowered.

As prior art related thereto, Korean Patent Registration No. 10-1761344 (Prior Document 1), Korean Patent Publication No. 10-1849063 (Prior Document 2), Korean Patent Registration No. 10-1915930 (Prior Document 3) etc. are known.

Prior Document 1 discloses an ultrasonic cleaner according to an aspect of an oscillator provided outside a cleaning space in which materials and cleaning materials are accommodated to generate ultrasonic waves, and an oscillator provided above the oscillator and formed so that one surface protrudes into the cleaning space, a diaphragm vibrating by ultrasonic waves generated by the oscillator; an insulating plate provided between the oscillator and the oscillator to prevent heat or electromagnetic waves from moving from the oscillator to the oscillator; coupled to the oscillator and penetrating the insulating plate a first bolt provided to connect the oscillator and the diaphragm; an airtight ring coupled to the diaphragm to seal the periphery of the diaphragm protruding from the inside of the washing space; It is characterized in that the ultrasonic generator is provided with a cap fastened to one end of the two bolts so that the diaphragm and the airtight ring are fixed to the outer wall surface of the washing space.

Prior Document 2 is a sealing 10 of an elastic material coupled to the coupling hole (Ta) of the water tank (T); The ultrasonic wave is applied to the washing water accommodated in the water tank (T), and the vibrator bracket 21 is in close contact with the upper end of the seal 10, and extends to the lower side of the vibrator bracket 21 and penetrates the seal 10. a vibrator body 22 and a vibrator 20 having a plurality of fastening bolts 23 formed on the rear surface of the vibrator bracket 21; a ring bracket (30) for fixing the vibrator (20) to the lower end of the sealing (10) by the fastening bolts (23) passing through the lower side of the water tank (T); and first and second anti-corrosion covers (40, 50) for protecting the vibrator body 22 from corrosion, which surround the vibrator body 22 when coupled to each other.

Prior Document 3 discloses that the structure of the detachable vibrator coupling structure of the ultrasonic dishwasher includes a body part; and a washing tub having an inner bulkhead and immersed in water to accommodate a plurality of dishes on the central upper surface of the body part, wherein a fixing hole is formed and a part protrudes from the inner bulkhead in the direction of the washing tub to generate electricity a vibrator that generates ultrasonic waves based on vibrations generated during application and transmits them to the tableware in the front and left and right directions in a 180° direction for washing; a coupling part having a coupling space, a coupling hole, and a fixing hole, the coupling part having a predetermined thickness on the inner partition wall of the washing tank to couple the vibrator to the inner partition wall; and a fixing part for removably fixing the vibrator and the coupling part to the inner partition of the washing tank through a fixing hole of the vibrator and the coupling part.

However, looking at the aforementioned prior documents 1 and 2, the sealing between the coupling hole and the vibrator is released because the elasticity of the sealing decreases over time and the deformation proceeds due to the plurality of fastening bolts installed between the water tank coupling hole and the vibrator. As a result, water leakage occurs from a certain moment, and as time passes, there is a gap between the bottom of the washing tank and the vibrator. There are still downsides to including.

Korean Patent Publication No. 10-1761344 "ultrasonic washer" (Registration date: 2017. 07. 19.) Korean Patent Publication No. 10-1849063 "Ultrasonic vibration generator for washing machine" (Registration date: 2018. 04. 09.) Korean Patent Publication No. 10-1915930 "Detachable vibrator coupling structure of ultrasonic dishwasher" (Registration date: 2018. 10. 31.)

An object of the present invention to fundamentally improve the problems of the prior art as described above is to improve durability and maintain airtightness by supplementing the configuration of the airtight structure based on the combination method of the diaphragm and the vibrator to maintain the bonding force with the diaphragm. The purpose is to provide a fastening structure for a vibration generator for ultrasonic cleaners that has excellent product performance by exhibiting excellent performance, such as blocking water leakage and remarkably improving clearance, vibration, and noise prevention performance.

The present invention for achieving the above object is a vibration generating device for applying ultrasonic waves to washing water on a washing machine: having a locking jaw in close contact with the upper end of a seal attached to the washing machine, and with an outer surface extending vertically from the stopping jaw a diaphragm having a screw thread, and processing any one of a circular shape, an oval shape, a hexagonal shape, and a diamond shape on the upper outer surface, or a combination thereof; a vibrator having a body extending to the lower side of the vibrating plate and protruding to pass through a seal, and having a piezoelectric element made of a thin plate to face left and right at a predetermined distance on the body; and a coupling means for integrating the diaphragm and the vibrator with each other through a series of processes including a surface processing process, a washing process, a nylon MESH seating process, an adhesive application process, a vibrator bonding process, a curing process, and a cooling process. However, the bonding means is a surface processing process to improve adhesion by sandblasted ball processing on the inner surface of the diaphragm, a cleaning process to remove surface foreign substances by washing with a dedicated cleaning agent for 10 to 20 minutes, and a washing process on the inner surface of the diaphragm Nylon mesh mounting process to seat and fix nylon mesh with a thickness of 0.6t to 1.0t on 50Φ, adhesive application process to apply adhesive to the boundary of nylon mesh, vibrator bonding process to combine vibrator on the applied adhesive, 30 at 120℃ It is characterized in that it is integrated through a series of steps: a curing process of heating at 150°C for 20 minutes or a cooling process of discharging the bonded diaphragm and vibrator and cooling it at room temperature at 20±5°C for 20 minutes.

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In addition, the adhesive application process in the bonding means according to the present invention is characterized in that it is applied to the upper surface of the nylon MESH using a one-component epoxy to a thickness of 0.6t ~ 1.0t.

On the other hand, prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should understand the concept of the term in order to explain his invention in the best way. Based on the principle that it can be appropriately defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

As described in the above configuration and action, the fastening structure of the vibration generating device for an ultrasonic cleaner according to the present invention is based on the combination method of the vibration plate and the vibrator as an integral part, and complements the configuration of the airtight structure to maintain the bonding force with the vibration plate and improve durability. It maintains airtightness to block leaks, as well as to dramatically improve clearance, vibration, and noise prevention performance, providing superior product performance.

1 is a block diagram showing a coupling state of a fastening structure of a vibration generating device for an ultrasonic cleaner according to the present invention in a perspective direction;
Figure 2 is a block diagram showing the coupling state of the fastening structure of the vibration generating device for an ultrasonic cleaner according to the present invention from the front direction.
3 is a block diagram showing the disassembled state of the fastening structure of the vibration generating device for an ultrasonic cleaner according to the present invention in a perspective direction.
4 is a block diagram showing the disassembled state of the fastening structure of the vibration generating device for an ultrasonic cleaner according to the present invention from the front direction.
5 is a block diagram showing an embodiment of the fastening structure of the vibration generating device for an ultrasonic cleaner according to the present invention.
6 and 7 are coupling flowcharts sequentially showing coupling means of the coupling structure of the vibration generating device for an ultrasonic cleaner according to the present invention.

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

The present invention proposes a vibration generator for applying ultrasonic waves to washing water on a washing machine. In particular, based on the combination method of the diaphragm 10 and the vibrator 20, the configuration of the airtight structure is supplemented to improve durability and maintain airtightness to block water leakage as well as to prevent gap, vibration and noise. It relates to a fastening structure.

According to the present invention, the diaphragm 10 has a locking jaw 11 in close contact with the upper end of the sealing 2 attached to the washing machine, and has a screw thread 13 on an outer surface extending vertically from the locking jaw 11 do. The diaphragm 10 is provided with a locking jaw 11 so as to be closely fixed to the upper end of the seal 2 attached to one surface of the washing machine, is formed to protrude in the vertical direction from the locking jaw 11, and opens and closes with the protruding outer surface and a thread 13 that performs The perimeter of the locking jaw 11 and the screw thread 13 of the diaphragm 10 is formed differently from each other, and the nut is fastened with the thread 13, the other end, while maintaining the state in which one end is hung while receiving it from the top of the sealing 2 to the inside. It is configured to be integrally coupled with the sealing (2). Since the diaphragm 10 is used as a vibration generating device by integrally combining the vibrator 20 and the bisected configuration to be described later, it is important to perform a precision processing process.

On the other hand, the diaphragm 10 used in the present invention uses a material of SUS304, and the thread 13 formed on the vertically extended outer surface of the locking jaw 11 is 7 to 8 places based on a 2.0mm pitch and 1.3mm deep. It is based on processing, and it is also possible to partially change and form it according to the overall size and overall condition of the composition. In other words, these standards are merely representations of one example, and various materials and conditions may be changed as needed.

At this time, according to the detailed configuration of the present invention, the diaphragm 10 is characterized in that any one of the shapes such as circular, oval, hexagonal, and diamond-shaped on the upper outer surface can be selectively processed or mixed. The diaphragm 10 is combined with the sealing ring 2 to be assembled into one configuration with the washing machine, and serves as a diaphragm as in the term. The upper outer surface of the diaphragm 10 is circular, oval, hexagonal, or diamond-shaped. By selecting or mixing any one of various shapes such as, processing and forming into a specific shape, it is possible to control the vibration intensity or direction of ultrasonic waves.

In addition, according to the present invention, the vibrator 20 is provided with a body 21 extending to the lower side of the diaphragm 10 and protruding to pass through the sealing 2, and facing left and right at a predetermined distance on the body 21 A piezoelectric element 23 made of a thin plate is provided. The vibrator 20 extends in the downward direction of the diaphragm 10 and is provided with a body 21 so as to protrude through the inside of the seal 2, and faces left and right while maintaining a certain distance on the body 21 A piezoelectric element 23 made of a thin plate is integrally provided. The vibrator 20 is used in combination with the diaphragm 10 and the lower side, and is formed in a multi-stage type in which the circumference of the diaphragm 10 is reduced from the upper portion coupled to the diaphragm 10 to the opposite lower portion. While the piezoelectric elements 23 are positioned to face each other from side to side on the boundary of the multi-stage, a predetermined distance is maintained.

In addition, according to the present invention, the coupling means 30 includes a surface processing process (S1), a washing process (S2), a nylon MESH mounting process (S3), and an adhesive to couple and fix the vibration plate 10 and the vibrator 20 to each other. It is integrated through a series of steps of the coating step (S4), the vibrator bonding step (S5), the curing step (S6), and the cooling step (S7). The coupling means 30 is characterized in that the vibration plate 10 and the vibrator 20 are coupled integrally by performing a series of sequential coupling processes to couple and fix the upper and lower adjacent portions as a boundary. The diaphragm 10 and the vibrator 20 are subjected to a surface processing process (S1), a washing process (S2), a nylon MESH mounting process (S3), an adhesive application process (S4), a vibrator bonding process (S5), a curing process (S6) , coupled to be integrated through the process of the cooling process (S7).

At this time, according to the detailed configuration of the present invention, the coupling means 30 is sandblasted ball processing on the inner surface of the diaphragm 10 to improve the adhesive strength in the surface processing process (S1), washing the surface with a dedicated cleaning agent for 10 to 20 minutes Cleaning process to remove foreign substances (S2), Nylon MESH mounting process for seating and fixing nylon MESH on the cleaned inner surface (S3), Adhesive application process for applying adhesive to the boundary of nylon MESH (S4), on the applied adhesive The vibrator bonding process (S5) of combining the vibrator 20 with It is characterized in that it is integrated through a series of processes of cooling at 20±5° C. for 20 minutes (S7). The coupling means 30 is a surface processing process (S1), a washing process (S2), a nylon MESH mounting process (S3), an adhesive application process (S4), a vibrator bonding process to integrate the diaphragm 10 and the vibrator 20 (S5), a curing step (S6), and a cooling step (S7). The surface processing process (S1) processes the inner surface of the diaphragm 10 in contact with the sealing (2). to improve Subsequently, in the washing process (S2), the diaphragm 10 subjected to the surface processing process (S1) is washed with an exclusive detergent for 10 to 20 minutes to remove surface foreign substances, and then the nylon MESH seating process (S3) is a washing process (S2) Nylon MESH is seated and fixed on the inner surface of one diaphragm 10 so as to improve fixing and adhesion with the bonding configuration.

Next, in the adhesive application step (S4), an adhesive is applied to the boundary of the nylon MESH subjected to the seating step (S3), and then the vibrator bonding step (S5) is coupled to each other to bond and adhere the vibrator 20 on the applied adhesive do. Next, in the curing step (S6), the diaphragm 10 and the vibrator 20 after the bonding step (S5) are heated at 120° C. for 30 minutes or 150° C. for 20 minutes, and the cooling step (S7) is a curing step (S6). The diaphragm 10 and vibrator 20 are discharged and cooled at room temperature at 20±5° C. for 20 minutes to complete the integration process of the diaphragm 10 and the vibrator 20 .

As such, by sequentially performing the above series of process steps, the vibration plate 10 and the vibrator 20, which were separated from each other, are integrated into one vibration generating device and applied to the ultrasonic cleaner.

At this time, according to the detailed configuration of the present invention, the nylon MESH seating step (S3) in the coupling means 30 is to form a nylon mesh on the inner surface of the diaphragm 10 to be seated at 50 Φ with a thickness of 0.6t to 1.0t characterized. In the bonding means 30, it will be most effective to perform the process by applying the conditions of 0.6 t to 1.0 t thickness of nylon mesh 50 Φ in the nylon MESH seating process (S3) process. In the nylon MESH mounting process (S3), if the process is performed with nylon of the standard described above, fixing and adhesion with the bonding configuration can be maximally improved, so the above conditions were applied as the basic specifications. It is also possible to process by applying

In addition, according to the detailed configuration of the present invention, the adhesive application step (S4) in the bonding means 30 is applied to the upper surface of the nylon MESH with a one-component epoxy to a thickness of 0.6 t to 1.0 t. In the bonding means 30, the adhesive application process (S4) is based on using a one-component epoxy as an adhesive. would be effective. The reason why this adhesive application process (S4) uses one-component epoxy as the main material in the bonding process between the diaphragm 10 and the vibrator 20 is that no gas is generated in the curing process (S6), which is a post-process, and has excellent adhesion. This is because it has excellent heat resistance and chemical resistance, small curing shrinkage, small graft under load, and excellent durability and insulation.

On the other hand, it will be possible to perform the adhesive application process (S4) by using a one-component epoxy as a basic adhesive, but not unconditionally, but by replacing it with an adhesive having the same or similar properties.

As described above, the present invention supplements the configuration of the airtight structure based on the combination method of the diaphragm and the vibrator to improve durability by maintaining the bonding force with the diaphragm, and maintains airtightness to block water leakage as well as to prevent gap, vibration, and noise The performance of the product is exceptionally excellent by exhibiting excellent performance such as this remarkably improved.

The present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such variations or modifications fall within the scope of the claims of the present invention.

2: sealing 10: diaphragm
11: Jaw 13: Thread
20: vibrator 21: body
23: piezoelectric element 30: coupling means
S1: Surface processing S2: Cleaning process
S3: Nylon MESH mounting process S4: Adhesive application process
S5: Vibrator bonding process S6: Hardening process
S7: Cooling process

Claims (5)

In the vibration generator for applying ultrasonic waves to washing water on a washing machine:
A locking jaw 11 is provided in close contact with the upper end of the seal 2 attached to the washing machine, and a screw thread 13 is provided on an outer surface extending vertically from the locking jaw 11, and has a circular, oval shape on the upper outer surface. , a diaphragm (10) for processing by selecting or mixing any one of shapes such as hexagon and diamond
A body 21 extending to the lower side of the diaphragm 10 and protruding to penetrate the seal 2 is provided, and a thin plate piezoelectric element 23 is provided on the body 21 to face left and right at a predetermined distance. the vibrator 20; and
In order to bond and fix the diaphragm 10 and the vibrator 20 to each other, a surface processing process (S1), a washing process (S2), a nylon MESH mounting process (S3), an adhesive application process (S4), a vibrator bonding process (S5) , a curing process (S6), a coupling means (30) for integrating through a series of processes of a cooling process (S7);
The coupling means 30 is a surface processing process (S1) to improve adhesion by sandblasted ball processing on the inner surface of the diaphragm 10, a cleaning process (S2) to remove surface foreign substances by washing with a dedicated cleaning agent for 10 to 20 minutes (S2) , Nylon MESH mounting process (S3) for seating and fixing nylon mesh with a thickness of 0.6 t to 1.0 t at 50 Φ on the inner surface of the washed diaphragm 10, adhesive application process for applying adhesive to the boundary of nylon MESH (S4) , a vibrator bonding process of bonding the vibrator 20 on the applied adhesive (S5), a curing process of heating at 120° C. for 30 minutes or 150° C. for 20 minutes (S6), the bonded vibrating plate 10 and the vibrator 20 A fastening structure of a vibration generator for an ultrasonic cleaner, characterized in that it is integrated through a series of processes of exhausting and cooling at room temperature at 20±5°C for 20 minutes (S7). delete delete delete According to claim 1,
In the bonding means (30), the adhesive application process (S4) is a fastening structure of a vibration generating device for an ultrasonic cleaner, characterized in that the one-component epoxy is applied to the upper surface of the nylon MESH in a thickness of 0.6 t to 1.0 t.

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