TWI767024B - Ultrasonic cosmetic device using nonconductive materials and manufacturing method of ultrasonic wave transmission - Google Patents

Abstract

The present disclosure relates to an ultrasonic cosmetic device using nonconductive materials and a manufacturing method thereof and the ultrasonic cosmetic device may include: a handpiece structure body part with an ultrasonic oscillation circuit; a piezoelectric ceramic disposed inside the body part so as to generate ultrasonic vibration by receiving power of the ultrasonic oscillation circuit; and an ultrasonic wave transmission unit attached to the piezoelectric ceramic, supported on the body part, and formed from a powder type mixed material including a nonconductive forming material.

Description

Ultrasonic beauty device using non-conductive material and manufacturing method of ultrasonic transmission unit

The present invention relates to an ultrasonic cosmetic device using a non-conductive material and a manufacturing method thereof.

In general, ultrasonic cosmetic devices use ultrasonic probes in which piezoelectric ceramics are attached to a metal plate as a skin care device.

Piezoelectric ceramics are materials that convert impact energy into electrical energy or electrical energy into vibration energy. For example, piezoelectric ceramics generate more than one million vibrations (physical forces) per second depending on the input voltage. In addition, the vibration generated by the piezoelectric ceramic is transmitted to the human skin through the metal plate, thereby exhibiting a cosmetic effect. The cosmetic effects of this ultrasonic cosmetic device mainly include cleaning effects, warming effects, skin fat decomposition effects, and the like.

Here, the cleansing effect can be understood as the effect of expelling skin secretions from the skin by interfuse shock waves according to the mechanism of ultrasonic cavitation into the skin. The cleansing effect can be used to treat acne. In addition, the warming effect can be understood as the effect of transmitting frictional heat to the inside of the skin due to ultrasonic operation to increase the temperature of the internal tissue of the skin, thereby releasing muscle stiffness and activating skin elasticity. Furthermore, the lipolytic effect refers to the effect of changing the fat of the skin into an easily decomposed state or into fatty acid, or the effect of promoting blood and lymph fluid or inducing the release of hormones by the warming or vibrating action of ultrasonic waves.

As disclosed in Korean Patent Publication No. 10-2012-0103248, the ultrasonic cosmetic device according to the prior art may include a head part and a hand-held body as a handle, and may be used for lipolysis treatment.

The head part of the ultrasonic cosmetic device in the prior art is manufactured by a pressing method using a conductive metal plate material, thereby emitting ultrasonic waves.

However, since the head part of the ultrasonic cosmetic device in the prior art is made of a cold metal material, the head part has a relatively low temperature compared to the skin temperature before operation, since the ultrasonic cosmetic device may bring a different texture due to contact with the skin, Therefore, it is difficult to become a humanized product. Furthermore, since the head part of the ultrasonic cosmetic device is provided in a simple and flat form, the head part has the disadvantage that it is very difficult to convey the function as an ultrasonic cosmetic device.

For example, the shape of the head part of the ultrasonic cosmetic device in the prior art is limited in terms of quality, function and design because the head part is manufactured by a pressing method.

Furthermore, the head part of the ultrasonic cosmetic device in the prior art can only realize electroplating colors, such as silver or gold, which are produced by the characteristics of metal materials, so there are limitations in realizing various colors.

The present invention proposes specific embodiments to solve the problem and aims to provide an ultrasonic cosmetic device using a non-conductive material, which promotes the application of high-quality materials and the realization of color, and can achieve shape-free design and make ultrasonic functions and Its manufacturing method is improved.

According to an aspect of the present invention, an ultrasonic cosmetic device using non-conductive materials is provided, comprising: a hand-held structural body part with an ultrasonic oscillation circuit; and a body part disposed in the body part to be activated by the power of the ultrasonic oscillation circuit A piezoelectric ceramic that generates ultrasonic vibration; and an ultrasonic transmission unit attached to the piezoelectric ceramic, supported on the body member, and formed of a powder-type mixed material including a non-conductive-forming material.

In addition, the ultrasonic transmission unit may include a coupling member integrally formed on the surface of the ultrasonic transmission unit to be disposed at the end of the body member, and a coupling member integrally formed on the coupling member and exposed to the body member The outer three-dimensional pattern portion, and the coupling member may include slits or holes.

In addition, the body part may include a charging circuit connecting the ultrasonic oscillation circuit and the rechargeable battery, a casing having the charging circuit and the ultrasonic oscillation circuit, electrically connecting the charging circuit and coupled to the casing to expose the charging terminal The contact terminal member to the outside of the body member, and the opening portion mounted on the end portion of the housing has a mounting space for mounting the piezoelectric ceramic and covers the inside of the coupling member of the ultrasonic transmission unit shell, and the piezoelectric ceramic electrically connected to the ultrasonic oscillation circuit is coupled to the inner surface of the ultrasonic transmission unit in the installation space of the inner shell, and the ultrasonic vibration of the piezoelectric ceramic passes through the The three-dimensional pattern part of the ultrasonic transmission unit is transmitted to the human body or the skin.

Furthermore, the body member may include a docking system having a docking slot portion having a slot size corresponding to the bottom of the body member for electrical connection to the contact terminal member.

Furthermore, the non-conductive forming material may include zirconia powder, jewelry powder (here, jewelry powder is at least diamond powder, ruby, sapphire, emerald, topaz (topaz), quartz (quartz), amethyst (amethyst), coral (coral), pearl (pearl), onyx (onyx), dioxide (diaoxide), Paris garnet (paris laduli), rhodochrosite (rhodochrosite) ), rhodolite, rubelite, malachite, tomalin, spinel, citrine, apatite, and aolite), and a plastic powder, or a mixture of one or more powders that can be shaped or ground into an ultrasonic transmission element for coupling to a piezoelectric ceramic.

In addition, the mixed material may include color-developing colorant powders and binder powders for powder metallurgy mixed with the non-conductive-forming material.

According to another aspect of the present invention, there is provided a method for manufacturing an ultrasonic transmission unit that receives ultrasonic vibrations from piezoelectric ceramics of a hand-held structural body member having an ultrasonic oscillatory circuit, the method comprising: : a material preparation step of mixing a colorant powder, a binder powder, and a non-conductive forming material into a mixed material for manufacturing the ultrasonic transmission unit; a supplying step of supplying the mixed material to a mold having corresponding In the inner model of each of the coupling part for coupling the body part and the three-dimensional pattern part for transmitting ultrasonic waves; the powder particles of the mixed material are coupled to each other by pressing the mold to make the ultrasonic transmission unit. forming step; sintering step, wherein depending on the diffusion of the heat treatment of the ultrasonic transmission unit made by the forming step, by the mutual chemical bonding of the powder particles of the mixed material, will be used to transmit the ultrasonic waves The mechanical strength and required durability are formed in the ultrasonic transmission unit; and the grinding step of grinding the ultrasonic transmission unit subjected to the sintering step with a barrel grinder.

Furthermore, in the material preparation step, based on weight percent (wt %), the materials are mixed so that the non-conductive forming material is in the mixed material having 86.9 wt % of the non-conductive forming material and 13.1 wt % % of the composition of the binder powder to achieve a white color like zirconia powder, or with 83.9 wt % of the non-conductive forming material, 13.1 wt % of the binder powder and 3 wt % of the colorant powder as a black pigment The ingredients were mixed to achieve a black color, and the mixed material was pulverized by a jet mixer, and the pulverized mixed material had a particle size distribution corresponding to a 300 to 320 mesh.

Furthermore, the pulverized mixed material includes any one of zirconia powder, jewelry powder, and plastic powder, or a mixture of one or more powders.

10‧‧‧Ultrasonic Beauty Device

100‧‧‧Main body parts

110‧‧‧Ultrasonic oscillator circuit

120‧‧‧Charging circuit

130‧‧‧rechargeable batteries

140‧‧‧contact terminal parts

141‧‧‧Charging terminal

150‧‧‧Inner shell

160‧‧‧Enclosure

161‧‧‧Opening part

170‧‧‧Switch

200‧‧‧piezoelectric ceramics

300‧‧‧Ultrasonic transmission unit

310‧‧‧Coupling parts

320‧‧‧Three-dimensional pattern part

400‧‧‧Docking System

410‧‧‧Butt groove part

500‧‧‧Jet Mixer

501‧‧‧Colorant powder

502‧‧‧Binder powder

503‧‧‧Non-conductive forming materials

520‧‧‧Storage Slot

530‧‧‧Powder Dosing Feeder

600‧‧‧Mould

610‧‧‧Inner Model

700‧‧‧Sintering equipment

800‧‧‧Drum Grinder

S100~S140‧‧‧Steps

The above and other objects, features and advantages of the present invention will be more clearly understood by the following detailed description in conjunction with the accompanying drawings, which are: FIG. 1 is an ultrasound using non-conductive materials according to an embodiment of the present invention. A perspective view of a cosmetic device; Fig. 2 is a cross-sectional view for describing the inside of the ultrasonic cosmetic device using a non-conductive material shown in Fig. 1; Fig. 3 is a sectional view for describing the non-conductive device shown in Fig. A flowchart of a manufacturing method of an ultrasonic transmission unit of an ultrasonic cosmetic device of materials; and FIGS. 4A to 4E are apparatus operation diagrams for describing the manufacturing method of each step shown in FIG. 3 .

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

Furthermore, in describing the present invention, detailed descriptions of related known structures or functions are omitted to avoid obscuring the subject matter of the present invention.

FIG. 1 is a perspective view of an ultrasonic cosmetic device using a non-conductive material according to an embodiment of the present invention, and FIG. 2 is used to describe the interior of the ultrasonic cosmetic device using a non-conductive material shown in FIG. 1 Sectional view.

Referring to FIGS. 1 and 2 , the ultrasonic cosmetic device of the specific embodiment includes a body part 100 , a piezoelectric ceramic 200 , and an ultrasonic transmission unit 300 .

The body part 100 may include an injection-molded plastic casing, ie, the casing 160 , which is a handheld structure. The body part 100 may have a streamlined design so that the user can easily hold and operate the body part 100 . The switch 170 can be electrically connected to the ultrasonic oscillation circuit 110 (described below) and can be installed in the body part 100 to enable or stop the operation of the ultrasonic oscillation circuit 110 or adjust the ultrasonic frequency. For example, the switch 170 may be mounted exposed on the front surface of the housing 160 of the body part 100 . Here, the switch 170 may have a configuration of a switch button with waterproof treatment for the switch mounting groove of the housing 160 of the body part 100, or a sensor switch for measuring capacitance, which may have a sensor switch for measuring the positive conductive ground plane and electrical The configuration of the operation control device for sensing the user's touch input by the capacitance between the electrical earths.

Meanwhile, the above-mentioned body part 100 can be installed, stored and charged in a docking system 400 . For example, the docking system 400 may be responsible for charging functions and installation functions to convert external power (eg, AC 220V) to DC power (eg, DC 5V).

The docking system 400 may include a docking groove portion 410 for insertion and installation of the body member 100 . Here, the butting groove portion 410 may have a groove size corresponding to the bottom of the body part 100 . In addition, when the body part 100 is inserted into the docking slot part 410 , a spring terminal (not shown) may be formed to electrically connect the body part 100 to the charging terminal 141 of the contact terminal part 140 . The DC power converted through the docking system 400 can be input to the charging circuit 120 of the body part 100 .

In the specific embodiment, the ultrasonic cosmetic device 10 is charged to operate by way of example, but the ultrasonic cosmetic device may have a battery instead.

The ultrasonic oscillator circuit 110 may be installed in the body member 100 . The ultrasonic oscillator circuit 110 uses electricity to excite the piezoelectric ceramic 200 . The excitation frequency of the ultrasonic oscillator circuit 110 can be determined within a range to increase the blood circulation of the skin in the contact area, increase the temperature of the internal tissue of the skin, stimulate the lipolysis of the skin, or promote the blood and lymph of the skin. The frequency may not be limited to a specific frequency value.

The piezoelectric ceramic 200 may be disposed within the body member 100 to generate ultrasonic vibration by receiving power from the ultrasonic oscillator circuit 110 . The piezoelectric ceramic 200 can be electrically connected to the ultrasonic oscillation circuit 110 through wires.

The ultrasonic transmission unit 300 may be attached to the piezoelectric ceramic 200 and supported on the body part 100 through the inner case 150, and may be molded into a powdered mixed material containing a non-conductive molding material.

In a specific embodiment, in order to implement an ultrasonic cosmetic device using zirconia or a corresponding non-conductive material, the ultrasonic transmission unit 300 may be a head portion that directly contacts the human body or skin.

Specifically, since the ultrasonic transmission unit 300 is formed of a ceramic material, such as zirconia and alumina, for use in an ultrasonic cosmetic device, it is possible to implement a liberalized appearance, an appearance decorated with jewelry, Ultrasonic device with non-conductive material. That is, the ultrasonic transmission unit 300 can be implemented by injection molding, such as powder metallurgy, that is, powder injection, and the ultrasonic transmission unit 300 can be very advantageous in terms of design and function giving. For example, since the ultrasonic transmission unit 300 uses jewelry powder or the like as its non-conductive forming material, it may be advantageous to enhance the appearance of the ultrasonic transmission unit 300 . On the other hand, the head part made by the existing metal method in the prior art has many design limitations or a cold touch according to the metal material, and compared with the metal material of the prior art, the non-conductive The ultrasonic transmission unit 300 made of forming materials (such as zirconia and alumina) by powder injection can be made into various shapes or three-dimensional shapes, and can have very good touch and color.

Furthermore, according to the cosmetic device of the prior art, the head member is made of a material such as stainless steel (SUS) or titanium (titanium) or the like. In this case, the head piece consists only of planes of material machining, and therefore, ultrasound may only be used in the plane section of the head piece.

However, since the ultrasound transmission unit 300 of the embodiment can have a 3D three-dimensional shape, that is, a three-dimensional pattern portion, there is an advantage that ultrasound can be applied to a specific skin portion in contact with the three-dimensional pattern portion.

Furthermore, the ultrasonic transmission unit 300 may be implemented as a high-quality product, such as a glossy exterior design. For example, an advantage of the ultrasonic transmission unit 300 is that the ultrasonic transmission unit 300 can be gloss-polished by a barrel grinder as a post-processing after injection molding. In other words, the ultrasonic transmission unit 300 can have a jewelry-like appearance with the benefit of gloss grinding, and can achieve a high-quality appearance at low cost even in a cosmetic device.

In addition, in the prior art, the head member made of metal material implements the ultrasonic cosmetic device through the current of the iontophoresis scheme, and the ultrasonic transmission unit 300 in the specific embodiment uses the non-conductive material to implement the ultrasonic cosmetic device. Implementing the product, ie, the non-conductive forming material, does not receive the current of the iontophoresis scheme alone.

For example, the non-conductive forming material used to make the ultrasonic transmission unit 300 may involve a ground material that may be molded or ground to bond to the piezoelectric ceramic 200 . That is, the mixed material or pulverized mixed material of the non-conductive forming material mentioned in the specification includes: zirconia powder, jewelry powder (here, jewelry powder is at least diamond powder, ruby, sapphire) , Emerald, Topaz, Quartz, Amethyst, Coral, Pearl, Onyx, Diaoxide, Paris Garnet (paris laduli), rhodochrosite, rhodolite, rubelite, malachite, tourmaline, spinel, citrine , apatite (apatite), and aolite (aolite), and any one powder of plastic powder, or a mixture of one or more powders.

Furthermore, the hybrid material can be configured to include bio inactive materials.

In addition, the non-conductive forming material may refer to a mixed material and includes colorant powder and binder powder to be mixed with the non-conducting forming material. Here, the colorant powder may be an additive to represent the color of the ultrasonic transmission unit 300 . Additionally, the colorant powder itself may be made from jewelry powder materials or bioinactive materials.

Therefore, the ultrasonic transmission unit 300 may have various colors and luster according to the color inherent to the non-conductive forming material, or may further include a separate colorant powder to have more color and luster.

In addition, the components of the binder powder can be removed from the ultrasonic transmission unit 300 by the chemical bonding effect due to the diffusion between the powder particles in the sintering (sintering) step and the heating effect in the sintering step. Therefore, the ultrasonic transmission unit 300 that completes the sintering step may be made of a colorant and a non-conductive forming material.

The ultrasonic transmission unit 300 includes a coupling part 310 integrally formed on the surface of the ultrasonic transmission unit 300 to be disposed at the end of the body part 100 . Here, the coupling part 310 of the ultrasonic transmission unit 300 may be a slit or a hole formed in the ultrasonic transmission unit 300 .

For example, a slit (ie, the coupling part 310 ) may be integrally formed with the bottom inner edge of the inner case 150 , and the ultrasonic transmission unit 300 and the inner case 150 may be coupled to each other through the slit.

The ultrasonic transmission unit 300 may also include a three-dimensional pattern portion 320 extending from the coupling member 310 , integrally formed with the coupling member 310 , and exposed to the body member 100 .

The ultrasonic transmission unit 300 including the three-dimensional pattern portion 320 has relatively low thermal conductivity, low electricity, and very high hardness due to its material properties.

The three-dimensional pattern part 320 may be a three-dimensional shape corresponding to a face shape, an embossed shape, or a curved groove or convex shape, and may be formed into various shapes corresponding to the inner shape of the mold for manufacturing the ultrasonic transmission unit 300, and thus, the three-dimensional The shape of the pattern part 320 is not limited to a specific shape.

Meanwhile, the body part 100 includes an ultrasonic oscillation circuit 110 and a charging circuit 120 connected to the rechargeable battery 130 . Herein, the rechargeable battery 130 may have a size that can be embedded in the body member 100 and a capacitance that can operate the ultrasonic oscillator circuit 110 . The charging circuit 120 may have a general charging circuit configuration and an overcharge protection configuration for electronic devices in the form of general mobile phones or handheld terminals.

In addition, the body part 100 includes a housing 160 , a charging circuit 120 and an ultrasonic oscillator circuit 110 . Herein, the casing 160 can be disassembled to be assembled and disassembled, and can be designed so that the gap of the casing 160 after assembly can be covered by a sealing member (not shown) and an adhesive.

In addition, the body part 100 may include a contact terminal part 140 electrically connected to the charging circuit 120 , which is coupled to the housing 160 to expose the charging terminal 141 to the outside of the body part 100 .

In addition, the body part 100 may include an inner case 150 for supporting the ultrasonic transmission unit 300 and mounting the ultrasonic transmission unit 300 on the body part 100 . Here, the inner case 150 may be installed on the opening portion 161 of the end of the outer case 160 . A groove-shaped stepped portion may be formed on the outer periphery of the bottom of the inner case 150 so as to be integrally formed with the opening portion 161 of the outer case 160 .

The inner case 150 may have an installation space for installing the piezoelectric ceramic 200 and may be used to cover the coupling portion 310 of the ultrasonic transmission unit 300 .

In addition, the piezoelectric ceramic 200 electrically connected to the ultrasonic oscillation circuit 110 may be coupled or attached to the inner surface of the ultrasonic transmission unit 300 in the installation space of the inner case 150 .

Therefore, the ultrasonic vibration of the piezoelectric ceramic 200 excited by the ultrasonic oscillation circuit 110 can be transmitted to the cosmetic treatment site, that is, to the human body or skin through the ultrasonic transmission unit 300 and its three-dimensional pattern portion 320 .

A method for manufacturing an ultrasonic cosmetic device using a non-conductive material according to a specific embodiment will be described below.

The flowchart shown in Fig. 3 is used to describe the method of manufacturing the ultrasonic transmission unit of the ultrasonic cosmetic device shown in Fig. 1 using a non-conductive material, and Figs. 4A to 4E illustrate the steps in Fig. 3 The device operation diagram of the manufacturing method.

Referring to FIGS. 3 to 4E, a method of manufacturing the ultrasonic transmission unit 300 is disclosed. The ultrasonic transmission unit 300 receives ultrasonic vibrations from the piezoelectric ceramics of the body part of the handheld structure equipped with the ultrasonic oscillation circuit.

The manufacturing method of the specific embodiment may include a preparation step S100 , which uses a mixer (not shown) to mix the colorant powder 501 , the binder powder 502 , and the non-conductive forming material 503 as mixing materials for manufacturing the ultrasonic transmission unit 300 .

Referring to FIG. 4A , in the material preparation step S100 , a jet mixer 500 for pulverizing the mixed material, a powder material supply device (not shown), and a storage tank 520 may be used.

Through the material preparation step S100, the colorant powder 501, the binder powder 502, and the non-conductive forming material 503 are mixed to produce a mixed material. The ingredient content or weight percent (wt%) of the mixed material can vary depending on the color and material. In other words, if it is white, the non-conductive molding forming material 503 is made of zirconium oxide (ZrO2) and its original color is white, so a separate colorant powder is not required. For example, if the mixed material for the ultrasonic transmission part 300 is white, when the non-conductive forming material 503 is zirconia powder, the non-conducting forming material 503 may be 86.9 wt % and the binder powder 502 may be 13.1 wt %. In addition, even if it is a block color white for the ultrasonic transmission part 300, when the non-conductive forming material 503 is zirconia powder, the non-conducting forming material 503 may be 83.9 wt % and the binder powder 502 may be 13.1 wt % %, and the colorant powder 501 is a black pigment and can be 3 wt%.

Meanwhile, in the material preparation step S100, a functional material for emitting far infrared rays may be further included as an additive. In this case, the material content of the mixed material can be adjusted.

In addition, the jet mixer 500 can powder the mixed material. Thus, the ground hybrid material may have a particle size distribution corresponding to 300 to 320 meshes.

At this time, the mesh value of 300 to 320 of the mixed material may be a critical value for manufacturing the ideal ultrasonic transmission unit 300 in the forming step S120 and the sintering step S130 which will be described below. That is, when the particle size distribution is smaller than the grid value, it may be difficult to handle the semi-finished type ultrasonic transmission unit 300, and when the particle size distribution exceeds the grid value, the formation and sintering quality of the ultrasonic transmission unit 300 may be degraded. deterioration. Therefore, this grid value can be of critical significance.

In addition, the manufacturing method of the specific embodiment may include a supplying step S110 of supplying the mixed material to the mold 600, the mold 600 having the inner model corresponding to the coupling part for coupling the body part and the three-dimensional pattern part for transmitting ultrasonic waves 610.

Referring to FIG. 4B , the powder dosing machine 530 can be used to provide the mixed material for injection molding the ultrasonic transmission unit 300 from the storage tank 520 to the inner mold of the mold 600 .

After the supplying step S110, the forming step S120, the sintering step S130, and the grinding step S140 may be performed.

The forming step S120 may be a series of procedures for forming the ultrasonic transmission unit 300 by pressing the mold 600 to combine the powder particles of the mixed material with each other.

Referring to FIG. 4C , the forming step S120 is a procedure in which the mixed material in the form of mixed powder is formed into a form corresponding to the semi-finished product of the mold 600 . Destruction of the powder particles of the mixed material is avoided until the sintering step S130 of the next procedure fully combines the powder particles of the mixed material.

The mold 600 may relate to a forming apparatus that includes a forming frame in the form of a scraped mold, a hydraulic circuit for operating or supporting the forming frame, and an actuator.

Referring to FIG. 4D, the sintering step S130 as a procedure, based on the diffusion of the heat treatment of the ultrasonic transmission unit 300 of the semi-finished product type produced by the forming step S120, the chemical bonding of the powder particles of the mixed material to each other, so that the The mechanical strength and durability required for transmitting ultrasonic waves are formed in the ultrasonic transmission unit 300 .

Here, the sintering apparatus 700 for heat-treating the ultrasonic transmission unit 300 may be constituted by an in-line heating furnace or a heating and cooling apparatus in the form of a closed heating box.

According to the type of mixed materials of the ultrasonic transmission unit 300 , the values of program parameters such as sintering temperature, heating time and pressure, cooling temperature, and cooling time of the sintering apparatus 700 can be selectively determined, and are not limited to specific values.

Referring to FIG. 4E , the ultrasonic transmission unit is supplied to the barrel grinder 800 through the sintering apparatus 700 . Here, the drum grinder 800, as a mechanical device for barrel processing, can be a tool for implementing rolling or centrifugal rotation, or vibration and reciprocating motion of a barrel (such as a grinding barrel), and the barrel can accommodate workpieces, grinding media ( MEDIA), cold water, and COMPOUND to form a texture on the surface of the ultrasonic transmission unit 300 or grind the surface of the ultrasonic transmission unit 300, and at the same time move the ultrasonic transmission unit 300 by the frictional motion of the mutual contact between MEDIA and the ultrasonic transmission unit 300. Remove scales or burrs.

The grinding step S140 may involve one of a series of steps for grinding the ultrasonic transmission unit 300 with the barrel grinder 800 through the sintering step S130 . In this way, the end of the ultrasonic transmission unit 300 may be formed into a circular portion having a radius of about 0.2 to 0.3 R (curvature) after undergoing the grinding step S140.

Before the grinding step S140, as a comparative example, the end portion of the ultrasonic transmission unit 300 separated from the mold 600 may be made to have a circular portion of about 0.1 R.

Therefore, even if the ultrasonic transmission unit 300 is transmitted by a force such as ultrasonic vibration or impact applied from the outside, the end of the ultrasonic transmission unit 300 is not locally damaged.

The ultrasonic transmission unit 300 that has undergone the grinding step S140 is combined with the body member 100 in the first or second figures to form an ultrasonic cosmetic device with excellent gloss and color.

In addition, after the grinding step S140, a separate hair line mold device (not shown) may be used to implement surface texture processing such as hair lines or others on the surface of the ultrasonic transmission unit 300.

Since the ultrasonic transmission unit 300 of the ultrasonic cosmetic device is manufactured by the above method, the color of the ultrasonic transmission unit 300 may not change for more than 10 years or a long period of time. Therefore, the ultrasonic transmission unit 300 can have very excellent color quality performance, and can have more expression force, such as touch, color, gloss, three-dimensional, compared to the head part with metal surface in the prior art Pattern shape, texture, etc.

In addition, the ultrasonic transmission unit 300 of the ultrasonic cosmetic device may have a surface texture such as a lustrous gemstone and a surface strength such as glass, so as to minimize the occurrence of scratches when the cosmetic device is used.

According to one aspect of the present invention, because the ultrasonic transmission unit can be formed by using a mold, compared with the existing products, the ultrasonic cosmetic device using a non-conductive material and the manufacturing method thereof can realize the human body with Good product and can achieve enhanced appearance.

In addition, the ultrasonic transmission unit can be fabricated with a wide variety of designs including three-dimensional curved surfaces and others, and advantageously, colors are easy to implement.

Furthermore, the ultrasonic transmission unit is made of a non-conductive material or a non-conductive forming material corresponding to a biologically inactive material, so the ultrasonic transmission unit can be a high-quality product excellent in color and gloss, and has a high degree of Biocompatible to minimize side effects and skin distress when in contact with the skin.

Although an ultrasonic cosmetic device using a non-conductive material according to an embodiment of the present invention has been described as a specific example, this is for illustration only and it should be understood that the present invention is not limited thereto and has the broadest scope according to the basic spirit disclosed in the description of this case scope. Those skilled in the art may implement the described aspects of the state by combining and substituting the disclosed examples without departing from the scope of the present invention. In addition, it is apparent that those skilled in the art can easily change or modify the disclosed examples based on the description herein, and such changes and modifications also belong to the scope of the present invention.

10‧‧‧Ultrasonic Beauty Device

100‧‧‧Main body parts

170‧‧‧Switch

300‧‧‧Ultrasonic transmission unit

400‧‧‧Docking System

410‧‧‧Butt groove part

Claims (9)

An ultrasonic cosmetic device using non-conductive materials, comprising: a hand-held structural body part with an ultrasonic oscillation circuit; piezoelectric ceramics arranged in the body part to generate ultrasonic waves by receiving the power of the ultrasonic oscillation circuit Sonic vibration; and an ultrasonic transmission unit, attached to the piezoelectric ceramic, supported on the body member, and composed of a powder-type mix comprising a non-conductive-forming material and a color-developing colorant powder mixed with the non-conductive-forming material material, and wherein, the ultrasonic transmission unit includes: a coupling part integrally formed on the surface of the ultrasonic transmission unit to be disposed at the end of the body part; and a three-dimensional pattern part integrally formed in the coupling part and exposed to the outside of the body part. The ultrasonic cosmetic device according to claim 1, wherein the coupling part of the ultrasonic transmission unit comprises a slit or a hole. The ultrasonic beauty device as described in item 2 of the scope of application, wherein the main body part comprises: a charging circuit, connecting the ultrasonic oscillation circuit and the rechargeable battery; a casing, covering the charging circuit and the ultrasonic oscillation circuit; a terminal part electrically connected to the charging circuit and coupled to the housing so as to expose the charging terminal to the outside of the body part; and an inner housing mounted on the opening portion of the end of the housing and having a circuit for mounting the pressure Installation space for electric ceramics and cover the ultrasonic transmission The coupling part of the unit, the piezoelectric ceramic electrically connected to the ultrasonic oscillation circuit is coupled to the inner surface of the ultrasonic transmission unit in the installation space of the inner shell, and the ultrasonic wave of the piezoelectric ceramic The sonic vibration is transmitted to the human body or skin through the three-dimensional pattern portion of the ultrasonic transmission unit. The ultrasonic cosmetic device as described in claim 3, wherein the body member includes a docking system having a butt groove portion, and the abutment groove portion has a groove size corresponding to the bottom of the body member to be electrically connected to the body member. Contact terminal parts. The ultrasonic cosmetic device of claim 1, wherein the non-conductive forming material comprises zirconia powder, jewelry powder (here, the jewelry powder is at least diamond powder, ruby powder) , sapphire, emerald, topaz, quartz, amethyst, coral, pearl, onyx, diaoxide ), paris laduli, rhodochrosite, rhodolite, rubelite, malachite, tomalin, spinel, Any one of citrine, apatite, and aolite), and plastic powder, or a mixture of one or more powders, which can be shaped or ground for ultrasonic transmission element so as to be coupled to the piezoelectric ceramic. The ultrasonic cosmetic device as described in claim 5, wherein the mixed material includes binder powder for powder metallurgy. A method for making an ultrasonic transmission unit that receives ultrasonic vibrations from piezoelectric ceramics of a hand-held structural body part having an ultrasonic oscillatory circuit, the method comprising: a material preparation step of mixing a colorant powder , a binder powder, and a non-conductive forming material are mixed into a mixed material for manufacturing the ultrasonic transmission unit; a supplying step, providing the mixed material to a mold having couplings corresponding to couplings for coupling the body member inner model of each of the part and the three-dimensional pattern part for transmitting ultrasound; forming step, by pressing the mold to couple the powder particles of the mixed material to each other to make the ultrasound transmitting unit; sintering step, depending on the The ultrasonic transmission unit produced by the forming step is subjected to heat-treated diffusion, through the mutual chemical bonding of the powder particles of the mixed material, the mechanical strength and required durability for transmitting the ultrasonic waves are formed in the in the ultrasonic transmission unit; and a grinding step, wherein the ultrasonic transmission unit subjected to the sintering step is ground by a drum grinder, and wherein the ultrasonic transmission unit includes: a coupling member integrally formed in the ultrasonic transmission unit The surface of the unit is arranged on the end of the body part; and the three-dimensional pattern part is integrally formed on the coupling part and exposed to the outside of the body part. The method as described in item 7 of the claimed scope, wherein, in the material In the preparation step, based on weight percent (wt %), the materials are mixed so that the non-conductive forming material is in the mixed material having 86.9 wt % of the non-conductive forming material and 13.1 wt % of the binder powder composition to achieve a white color like zirconia powder, or composition with 83.9 wt % of the non-conductive forming material, 13.1 wt % of the binder powder, and 3 wt % of the colorant powder as a black pigment to achieve a black color, and The mixed material was pulverized by a jet mixer, and the pulverized mixed material had a particle size distribution corresponding to 300 to 320 meshes. The method of claim 8, wherein the pulverized mixed material comprises any one of zirconia powder, jewelry powder, and plastic powder, or a mixture of one or more powders.

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