KR20210086379A - Toothbrush apparatus - Google Patents

Abstract

The present invention relates to a toothbrush device. According to an aspect of the present invention, the toothbrush device comprises: a vibration motor disposed in an internal space of a main body, and generating vibration; a battery disposed in the interior space to supply electrical energy to the vibration motor; a vibrating bar protruding from an upper surface of the main body and coupled to the vibrating motor to vibrate; a head unit detachably coupled to the vibrating bar to receive vibration energy from the vibrating bar and vibrate, extending in a longitudinal direction of the main body, and having a receiving groove provided at an end thereof; an LED unit disposed in the receiving groove, receiving electric energy from the battery to generate LED light; and a brush unit having bristles on an outer surface thereof, irradiating the LED light to an outside by covering the LED unit. The present invention relates to a toothbrush device capable of effective dental and periodontal care while brushing.

Description

Toothbrush device {TOOTHBRUSH APPARATUS}

The present invention relates to a toothbrush device.

In general, a bar-type toothbrush with bristles has been used for brushing teeth.

Therefore, when using such a toothbrush, a problem may occur in that the user cannot brush his teeth evenly because he/she brushes his/her teeth through the user's arbitrary wrist movement.

In addition, there is a limitation in that effects such as teeth whitening or periodontal strengthening cannot be expected from the use of the toothbrush itself, not the toothpaste.

Republic of Korea Public Utility Model Publication No. 20-2017-001230 (2017.04.07. Disclosure)

The present invention is to provide a toothbrush device capable of effective dental and periodontal care while brushing.

According to an aspect of the present invention, a main body having an internal space, a vibration motor disposed in the internal space and generating vibration, a battery disposed in the internal space to supply electrical energy to the vibration motor, protruding from the upper surface of the body, and vibrating A vibrating bar coupled to the motor and vibrating, and detachably coupled to the vibrating bar to receive vibration energy from the vibrating bar and vibrate, extend in the longitudinal direction of the body, and disposed in a head portion having a receiving groove at the end, and a receiving groove , An LED unit for generating LED light by receiving electrical energy from a battery, and having bristles on an outer surface, and a toothbrush device including a brush for irradiating the LED light to the outside by covering the LED unit is provided.

Coils are disposed opposite to each other on the upper surface of the main body and the ends of the head, and the LED unit may receive electric energy wirelessly from a battery according to electromagnetic induction between the coils.

The LED unit may include a substrate disposed in the receiving groove, and an LED device mounted on the substrate to generate LED light.

The LED device may include a first device generating LED light having a wavelength in the range of 430 nm to 450 nm, and a second device generating LED light having a wavelength in the range of 625 nm to 700 nm.

A lens groove disposed to correspond to the LED element and radiating the LED light generated from the LED element to the outside may be formed on a surface of the brush unit opposite to the LED unit.

In order to block the inflow of water through the space between the receiving groove and the brush unit, a water curtain groove extending along the end of the receiving groove is formed at the end of the receiving groove, and a water curtain projection corresponding to the water barrier groove is formed at the end of the brush unit. have.

It further includes a case that can accommodate the body and the head, respectively, the case is coupled to the upper case of the lower case, and the lower case is provided with a first space and a second space to accommodate the body and the head separated from each other, respectively, and the lower case. It may include an upper case for covering.

The case may further include a UV irradiator that is formed in the lower case and irradiates UV light for sterilization.

The case may further include a heating unit formed in the lower case to generate heat for drying.

The upper case may include a body having a detachable groove formed on one side thereof, and a cradle that is detachably coupled to the detachable groove and capable of charging a battery when the main body is mounted.

According to the present invention, it is possible to effectively take care of teeth and periodontal while brushing.

1 is a perspective view showing a toothbrush device according to an embodiment of the present invention.
2 is a cross-sectional view of a toothbrush device in accordance with one embodiment of the present invention;
Figure 3 is a cross-sectional view showing the coupling end of the head portion and the body according to an embodiment of the present invention.
4 is a partial cross-sectional view of a head portion according to an embodiment of the present invention.
5 is a perspective view illustrating a case in which a body and a brush unit are accommodated according to an embodiment of the present invention;
6 is a cross-sectional view illustrating a case in which the body and the head unit are accommodated according to an embodiment of the present invention;
7 is a cross-sectional view illustrating a case in which the head part is inserted toward the bottom of the first space according to an embodiment of the present invention.
8 is a perspective view illustrating a state in which the body is mounted on a cradle according to an embodiment of the present invention.
9 is a cross-sectional view showing a mounting end in a state in which the body is mounted on a cradle according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, an embodiment of the toothbrush device 100 according to the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numbers, and A duplicate description will be omitted.

According to the present embodiment, as shown in FIG. 1 , the main body 110 , the vibration motor 120 , the battery 130 , the vibration bar 140 , and the head part 150 in which the receiving groove 151 is provided at the end. ), is disposed in the receiving groove 151 of the head unit 150 and is provided with an LED unit 160 that receives electric energy from the battery 130 to generate LED light and bristles 171 on the outer surface, and the LED unit ( A toothbrush device 100 including a brush for irradiating LED light to the outside by covering 160 is presented.

According to this embodiment, by irradiating the LED light generated from the LED unit 160 provided in the head unit 150 to the teeth and periodontal in the oral cavity, the user can effectively manage teeth and periodontal while brushing. .

Hereinafter, each configuration of the toothbrush device 100 according to this embodiment will be described with reference to FIGS. 1 to 9 .

As shown in FIGS. 1 to 3 and 5 to 9 , the body 110 may have an internal space. Accordingly, the internal space of the main body 110 may be a space for disposing the vibration motor 120 and the battery 130, which will be described later. In addition, the main body 110 may provide a gripping space for brushing to the user through the outer peripheral surface.

As shown in FIGS. 2, 6 and 7 , the vibration motor 120 is disposed in the inner space of the body 110 and may generate vibration. Accordingly, by transferring the vibration generated by the vibration motor 120 to the head unit 150 through the vibration bar 140 , the bristles 171 vibrate so that uniform brushing is possible.

As shown in FIGS. 2 , 6 , 7 and 9 , the battery 130 may be disposed in the inner space of the main body 110 to supply electrical energy to the vibration motor 120 . That is, the battery 130 serves as a power source for the vibration of the vibration motor 120 and the LED light generation of the LED unit 160 to be described later, and as it is built into the body 110, the device can be used without a separate wire connection. This can improve the mobile usability and portability of the device.

As shown in FIGS. 1 to 3 and 5 to 7 , the vibrating bar 140 may protrude from the upper surface of the main body 110 and be coupled to the vibration motor 120 to vibrate. Accordingly, the vibration bar 140 may transmit the vibration generated by the vibration motor 120 to the head unit 150 , and the head unit 150 may be coupled in contact with the body 110 through the vibration bar 140 . .

As shown in FIGS. 1, 2 and 4 to 8 , the head unit 150 is detachably coupled to the vibration bar 140 to receive vibration energy from the vibration bar 140 and vibrate, and the main body ( It extends in the longitudinal direction of 110 , and an accommodating groove 151 may be provided at an end thereof.

Accordingly, uniform brushing through the vibrating motion of the bristles 171 is possible, and the receiving groove 151 provides a space in which the LED unit 160 to be described later can be disposed, so that teeth and periodontal teeth are brushed during brushing. This makes it possible to irradiate the LED light.

2, 3, 6 and 7, the lower end of the head unit 150, the insertion hole 154 corresponding to the vibration bar 140 so that the insertion of the vibration bar 140 is possible. can be formed. More specifically, in order to prevent separation of the vibration bar 140 inserted into the insertion hole 154, a support groove 142 is provided on either one of the outer circumferential surface of the vibration bar 140 and the inner circumferential surface of the insertion hole 154, , a support protrusion 156 corresponding to the support groove 142 may be formed on the other of the outer peripheral surface of the vibration bar 140 and the inner peripheral surface of the insertion hole 154 .

That is, when the head unit 150 is coupled to the vibration bar 140 by inserting the vibration bar 140 into the insertion hole 154 formed at the bottom, the vibration bar 140 is inserted into the insertion hole 154 . The structure of the support groove 142 and the support protrusion 156 prevents separation of the head part 150 from the vibration bar 140 due to vibration, so that the head part 150 can vibrate stably.

In addition, the support protrusion 156 protrudes to the outside, and as the vibration bar 140 is inserted into the insertion hole 154 , it is pushed back by the outer circumferential surface of the vibration bar 140 and is retracted when positioned in the support groove 142 . can be formed. Accordingly, abrasion or damage of the support protrusion 156 and the support groove 142 according to the detachment of the head part 150 can be effectively prevented.

The toothbrush device 100 may include a plurality of head parts 150 having a hardness or arrangement of the bristles 171 selectable according to the user's teeth or periodontal state, etc., and accordingly, the user according to his or her needs. Any one of the plurality of head units 150 may be selected and used in combination with the main body 110 .

As shown in FIGS. 2, 4 and 7, the LED unit 160 is disposed in the receiving groove 151 of the head unit 150, and receives electrical energy from the battery 130 to generate LED light. can Accordingly, the LED light generated from the LED unit 160 is irradiated in the direction toward which the bristles 171 are directed to reach the teeth and periodontium, so that the user can obtain the effect of teeth whitening and periodontal strengthening while brushing.

As shown in FIGS. 2, 3, 6 and 7, coils 112 and 158 are disposed opposite to each other on the upper surface of the main body 110 and the ends of the head part 150, and the LED unit 160 is Electrical energy may be wirelessly supplied from the battery 130 according to electromagnetic induction between the coils 112 and 158 .

That is, when the head unit 150 is coupled to the vibration bar 140 so that the upper surface of the main body 110 and the end of the head unit 150 come into contact with each other, the upper surface of the main body 110 and the end of the head unit 150 face each other. An induced current is generated in the coil 112 of the head unit 150 according to the electromagnetic induction phenomenon between the arranged coils 112 and 158, and the induced current is transmitted to the LED unit 160 so that the LED unit 160 is LED light can be generated.

The LED unit 160 is mounted on the substrate 162 disposed in the receiving groove 151 of the head unit 150, and the substrate 162 as shown in FIGS. 2, 4 and 7 to emit LED light. It may include an LED element 164 for generating. In this case, the LED element 164 may be formed in plurality, and thus the irradiation range of the LED light may be further expanded.

More specifically, as shown in FIGS. 2, 4, and 7, the substrate 162 is disposed to be in contact with the bottom surface of the receiving groove 151 to transmit heat generated from the LED element 164 through the head unit 150. can be released outside. Accordingly, heat generated from the LED element 164 can be more efficiently radiated to the outside within the limited space of the accommodating groove 151 .

The LED device 164 may include a first device (not shown) that generates LED light having a wavelength in the range of 430 nm to 450 nm, and a second device (not shown) that generates LED light in a wavelength range of 625 nm to 700 nm. .

That is, the LED light having a wavelength in the range of 430 nm to 450 nm has an antibacterial effect, so teeth whitening effect can be obtained through removal of bacteria. By increasing protein, it is possible to prevent periodontal aging and maintain its elasticity through periodontal irradiation because it has the effect of strengthening skin elasticity and improving fine wrinkles, improving skin tone through promoting blood circulation, and improving skin moisture.

As shown in FIGS. 1, 2, 4, 6 and 7, the brush unit may have bristles 171 on the outer surface and cover the LED unit 160 to irradiate the LED light to the outside. . More specifically, the brush part may be formed of a transparent material to irradiate the LED light to the outside through the entire surface.

2, 4 and 7, the brush portion is disposed to correspond to the LED element 164 on the surface opposite to the LED unit 160 to radiate the LED light generated from the LED element 164 to the outside. A lens groove 174 may be formed. Accordingly, the lens groove 174 can expand the narrow irradiation angle of the LED element 164 by refracting and diffusing the LED light incident on the inner surface.

More specifically, as shown in FIGS. 2, 4 and 7 , the inner circumferential surface of the lens groove 174 may be formed to be inclined toward the substrate 162 , and a curved surface concave toward the LED element 164 (not shown). ) may be formed.

Accordingly, in the latter case, light emission can be made more effectively, and in the former case, it can be more efficient in terms of processing difficulty or cost. However, the lens groove 174 is not limited to this embodiment, and any case capable of emitting LED light may be included.

In addition, the outer surface of the brush unit may be formed as a curved surface (not shown) concave toward the outside so that the LED light can be emitted. Accordingly, the LED light incident on the inner surface of the lens groove 174 is refracted to be diverged, then passed through the brush part and refracted to be emitted again from the outer surface of the brush part, so that it can be irradiated to the outside at a larger irradiation angle.

1, 2, 4 and 6 to 8, a plurality of seating grooves 175 in which the bristles 171 can be seated may be formed on the outer surface of the brush unit. In this case, the bristles 171 may be formed of a transparent material, and accordingly, the bristles 171 may radiate the LED light irradiated to the seating groove 175 to the outside through the ends.

In addition, the toothbrush device 100 may include a plurality of brush units (not shown) having a hardness or arrangement of the bristles 171 selectable according to the user's teeth or periodontal state. Accordingly, the user may select any one of the plurality of brush units according to his/her needs and use it in combination with the body 110 .

More specifically, each of the plurality of brush parts may be detachably formed in the receiving groove 151, so that the user can easily replace the used brush part with a brush part having a different type of bristles 171 to be used. In addition, when the bristles 171 of the used brush part are worn out and need to be replaced, it can be easily replaced with a new brush part.

2, 4 and 7, the end of the receiving groove 151 along the end of the receiving groove 151 to block the inflow of water through the space between the receiving groove 151 and the brush unit. An extended water barrier groove 152 may be formed, and a water barrier protrusion 176 corresponding to the water barrier groove 152 may be formed at an end of the brush unit.

That is, in general, since the toothbrush device 100 is used in a humid bathroom, etc., the structure of the clapper groove 152 and the clapper protrusion 176 corresponding thereto shields the space between the receiving groove 151 and the brush unit, so that the LED Inflow of water into the unit 160 can be prevented.

In addition, as shown in FIGS. 2, 4 and 7, an additional protrusion 177 is formed on the opposite surface of any one of the clapper groove 152 or the clapper protrusion 176, and the clapper groove 152 or clap protrusion An additional groove 153 corresponding to the additional protrusion 177 may be formed on the opposite surface of the other one of the 176 . Accordingly, since an additional shielding area is provided in the space between the receiving groove 151 and the brush part, the inflow of water can be more effectively blocked.

A sealing member (not shown) may be interposed between the receiving groove 151 and the brush part, and the sealing member may be formed of a material having high waterproof performance. Accordingly, the inflow of water into the LED unit 160 can be effectively blocked.

The toothbrush device 100 is a control unit 180 capable of controlling the operation of each of the LED unit 160 and the vibration motor 120, as shown in FIGS. 1, 2 and 6 to 8, and for controlling the operation An input unit 190 formed on the outer circumferential surface of the main body 110 may be further included so that a signal can be input to the control unit 180 .

Accordingly, the user can select the operation of the device by instructing the operation of the LED unit 160 and the vibration motor 120 to the control unit 180 through the input unit 190, and on/off, as well as various operation modes as needed can be selected to use.

More specifically, the input unit 190 may be formed of a plurality of operation instruction buttons 192 as shown in FIGS. 1, 2 and 6 to 8 , or may be formed of a touch screen panel (not shown). have. In this case, signals such as on/off, smart timer, and operation mode selection can be input through each operation instruction button 192 or each operation instruction touch area on the touch screen, and the operation mode is determined by vibration intensity, irradiated LED wavelength or These may be a combined mode or the like.

In addition, the toothbrush device 100 may further include an output unit 200 disposed on the outer peripheral surface of the main body 110 to display the operation mode selected by the user, as shown in FIG. 1 . Accordingly, the user can check the mode selected by the user through the output unit 200 , and can select any one of a plurality of operation modes by pressing a plurality of times just by having one operation mode button.

The toothbrush device 100 may further include a case 210 that can accommodate the body 110 and the brush unit, respectively, as shown in FIGS. 5 and 6 . Accordingly, the user can conveniently carry the body 110 and the head 150 by inserting them into the case 210 without the need to carry each.

More specifically, the case 210 is a lower case in which a first space 232 and a second space 236 that can accommodate the main body 110 and the brush unit separated from each other are provided, respectively, as shown in FIGS. 5 to 7 . 230 , and an upper case 220 coupled to the upper end of the lower case 230 to cover the lower case 230 .

In this case, the main body 110 and the head part 150 can be integrally accommodated in the lower case 230 , and the upper case 220 is coupled to the upper end of the lower case 230 to be accommodated in the lower case 230 . It is possible to prevent loss of the main body 110 and the head unit 150 or contamination from the outside.

5 to 7 , in the first space 232 of the lower case 230 , a separation preventing member 233 capable of preventing the separation of the main body 110 inserted into the first space 232 is formed. can be More specifically, the separation preventing member 233 protrudes from the upper inner circumferential surface of the first space 232 toward the inside of the first space 232 and inserts the body 110 inserted into the first space 232 into the first space ( 232) can be elastically compressed in the inward direction.

In addition, a separation preventing member (not shown) capable of preventing separation of the head unit 150 inserted into the second space 236 may be formed in the second space 236 of the lower case 230 .

The case 210 may further include a UV irradiator 240 formed on the lower case 230 to irradiate UV light for sterilization, as shown in FIGS. 6 and 7 . Accordingly, as UV light is irradiated from the UV irradiation unit 240 to the body 110 or the head unit 150, germs on the device that may be formed by external exposure or brushing are removed so that the user can use the device hygienically. do.

Also, the UV irradiation unit 240 may be disposed in the first space 232 as shown in FIGS. 6 and 7 , and more specifically, the UV irradiation unit 240 includes the head unit 150 in the first space 232 . ) may be disposed in the lower portion of the first space 232 so that UV light can be irradiated to the bristles 171 when inserted toward the bottom of the bristle.

That is, the UV irradiation unit 240 is disposed under the first space 232 so that the head unit 150 faces the bottom of the first space 232 in a state in which the head unit 150 is coupled to the body 110 . When inserted into the first space 232, since UV light is irradiated to the bristles 171 with the greatest possibility of bacterial contamination, the bristles 171 can be effectively sterilized.

As shown in FIGS. 6 and 7 , the case 210 may further include a heating unit 250 formed on the lower case 230 to generate heat for drying. Accordingly, as heat is emitted from the heat generating unit 250 to the main body 110 or the head unit 150, the toothbrush device 100 can be used hygienically by drying the water due to exposure to water or moisture or brushing teeth. .

In addition, as shown in FIGS. 6 and 7 , the heat generating unit 250 may be disposed in the first space 232 , and more specifically, the heat generating unit 250 includes the head unit 150 in the first space 232 . ) may be disposed in the lower portion of the first space 232 so as to be able to radiate heat to the head 150 when inserted toward the bottom.

That is, the heating part 250 is disposed under the first space 232 so that the head part 150 faces the bottom of the first space 232 in a state in which the head part 150 is coupled to the body 110 . When inserted into the first space 232, heat is emitted to the bristles 171 that are most likely to be wet, so that the bristles 171 can be effectively dried.

In addition, as shown in Figures 6 and 7, the lower surface of the first space 232 of the lower case 230, a ventilation hole 234 capable of discharging moisture generated according to the drying of the bristles 171 to the outside will be formed. can Accordingly, drying of the bristles 171 can be made more effectively and quickly.

As shown in FIGS. 5, 6, 8 and 9, the upper case 220 is detachably coupled to the body 222 in which the detachable groove 223 is formed on one side, and the detachable groove 223. and may include a cradle 224 capable of charging the battery 130 when the main body 110 is mounted. Accordingly, the user can conveniently charge the battery 130 without the need for a separate charging device by separating the cradle 224 coupled to the detachable groove 223 to mount the main body 110 .

More specifically, the detachable groove 223 may be disposed on the upper portion of the second space 236 as shown in FIG. 6 , and the cradle 224 may wirelessly charge the battery 130 of the main body 110 . have. Accordingly, the lower surface of the detachable groove 223 is located adjacent to the upper portion of the head unit 150 accommodated in the second space 236, so that the separation of the head unit 150 can be prevented, and wireless charging is possible. Even if the battery 130 is charged in a space such as a humid bathroom, the risk of electric accidents such as electric shock or short circuit can be prevented.

As shown in FIGS. 5 and 6 , the cradle 224 may be coupled to the detachable groove 223 to form an integral shape with the body 222 . Accordingly, the grip feeling or portability for the entire device is improved, and the cradle 224 can be prevented from being separated from the body 222 due to external factors.

8 and 9 , in order to mount the main body 110 on the cradle 224 , a mounting protrusion 225 is provided on the upper surface of the cradle 224 , and a mounting protrusion is provided on the lower end of the main body 110 . A mounting groove 114 corresponding to the 225 may be formed, and more specifically, the mounting protrusion 225 and the mounting groove 114 are the minimum at which the main body 110 is prevented from being overturned or separated when the body 110 is mounted. It may be formed above the height. Accordingly, the user can stably place the main body 110 on the cradle 224 through the insertion of the mounting groove 114 of the mounting protrusion 225 to charge the battery.

In the above, although an embodiment of the present invention has been described, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. The present invention may be variously modified and changed by, etc., and this will also be included within the scope of the present invention.

100: toothbrush device
110: body
112: coil
114: mounting groove
120: vibration motor
130: battery
140: vibration bar
142: support groove
150: head
151: receiving home
152: water barrier groove
153: additional home
154: insertion hole
156: support protrusion
158: coil
160: LED unit
162: substrate
164: LED element
170: brush unit
171: toothbrush head
174: lens groove
175: seating groove
176: water curtain
177: extra turn
180: control unit
190: input unit
192: operation instruction button
200: output unit
210: case
220: upper case
222: body
223: removal groove
224: cradle
225: turning
230: lower case
232: first space
233: escape prevention member
234: ventilation hole
236: second space
240: UV irradiation unit
250: heating part

Claims (10)

a body provided with an internal space;
a vibration motor disposed in the inner space and generating vibration;
a battery disposed in the inner space to supply electrical energy to the vibration motor;
a vibrating bar protruding from the upper surface of the main body and coupled to the vibrating motor to vibrate;
a head part detachably coupled to the vibrating bar to receive vibration energy from the vibrating bar and vibrate, extending in the longitudinal direction of the main body, and having a receiving groove at an end thereof;
an LED unit disposed in the receiving groove and receiving electric energy from the battery to generate LED light; and
A toothbrush device comprising a brush portion having bristles on the outer surface and irradiating the LED light to the outside by covering the LED unit.
According to claim 1,
Coils are disposed opposite to each other on the upper surface of the main body and the ends of the head part,
The LED unit receives electrical energy wirelessly from the battery according to electromagnetic induction between the coils.
According to claim 1,
The LED unit is
a substrate disposed in the receiving groove; and
A toothbrush device that is mounted on the substrate and includes an LED element for generating LED light.
4. The method of claim 3,
The LED element is
a first element for generating LED light having a wavelength ranging from 430 nm to 450 nm; and
A toothbrush device comprising a second element generating LED light of a wavelength in the range of 625 nm to 700 nm.
4. The method of claim 3,
The brush unit is disposed to correspond to the LED element on the surface opposite to the LED unit, and a lens groove for emitting the LED light generated from the LED element to the outside is formed, a toothbrush device.
According to claim 1,
To block the inflow of water through the space between the receiving groove and the brush part, a water barrier groove extending along the end of the receiving groove is formed at an end of the receiving groove, and an end of the brush unit corresponding to the water barrier groove A toothbrush device in which a clapper is formed.
According to claim 1,
Further comprising a case capable of accommodating the body and the head, respectively,
The case is
a lower case having first and second spaces accommodating the main body and the head separated from each other, respectively; and
The toothbrush device is coupled to the upper end of the lower case comprising an upper case for covering the lower case.
8. The method of claim 7,
The case is
Toothbrush device formed in the lower case further comprising a UV irradiator for irradiating UV light for sterilization.
8. The method of claim 7,
The case is
Toothbrush device formed in the lower case further comprising a heat generating unit for generating heat for drying.
8. The method of claim 7,
The upper case is
a body having a detachable groove formed on one side; and
A toothbrush device that is detachably coupled to the detachable groove and includes a cradle capable of charging the battery when the main body is mounted.

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