CN114515346A

CN114515346A - Toothbrush sterilizer with sterilizing and drying functions

Info

Publication number: CN114515346A
Application number: CN202011428444.7A
Authority: CN
Inventors: 李相勳; 洪承范
Original assignee: Hello Mr Li Co ltd
Current assignee: Hello Mr Li Co ltd
Priority date: 2020-11-19
Filing date: 2020-12-07
Publication date: 2022-05-20
Also published as: KR20220069128A; WO2022107928A1; KR102577553B1

Abstract

The present invention relates to a toothbrush sterilizer equipped with sterilization and drying functions, and more particularly, to a toothbrush sterilizer equipped with sterilization and drying functions, which is portable and has an Ultraviolet (UV) lamp and a heating unit inside so that inserted toothbrush bristles can be sterilized and dried in a short time.

Description

Toothbrush sterilizer with sterilizing and drying functions

Technical Field

Background

Generally, toothbrushes are stored in a storage tube or a shelf for holding the toothbrushes after use, and because bristles are in a wet state after use, an environment in which bacteria are bred is provided. In particular, bristles are directly contacted with teeth and are in a wet state after use, which causes a problem of high bacterial reproduction rate due to a long time taken for evaporation of moisture, and also maximizes bacterial reproduction when washing is poor after use.

If the above-mentioned bristles, on which bacteria are propagated, are used, the bacteria move into the oral cavity and are a cause of various oral diseases such as periodontitis.

Therefore, it is necessary to maintain a clean state in order to prevent the proliferation of bacteria after using the toothbrush, and methods currently used include a method of sterilizing while drying by putting bristles into a sterilizer equipped with an ultraviolet lamp.

As an example, including korean utility model publication No. 20-2011-: a case for accommodating toothbrush bristles; a light emitting diode Ultraviolet (UV) illumination assembly for providing Ultraviolet (UV) illumination to the bristles; a power supply assembly for supplying power to the Ultraviolet (UV) illumination assembly; and a connector for supplying the power supply assembly with power loaded from the outside.

The above prior art is convenient to carry and manage because of its small size and can collectively sterilize the bristle part, and can be used externally because the power supply part is formed of a chargeable and dischargeable battery.

As another example, korean patent registration No. 10-2177395 (registration 2020.11.05) is directed to a portable Ultraviolet (UV) sterilization apparatus, including: a main body part including a 1 st main body and a 2 nd main body coupled to one side surface of the 1 st main body in a slidable manner; an Ultraviolet (UV) irradiation part including an Ultraviolet (UV) lamp module for irradiating Ultraviolet (UV) rays by being installed on one side exposed surface of the 1 st body exposed when the 2 nd body slides; and an Ultraviolet (UV) operation module which is built in the main body and connected to the Ultraviolet (UV) lamp module, and controls an operation of the Ultraviolet (UV) lamp module according to a sliding movement of the 2 nd main body; a power supply unit which is built in the main body unit, charges the battery by receiving power from the outside, and supplies the charged power to the Ultraviolet (UV) irradiation unit; and a bracket part, one end of which is rotatably connected with the other side surface of the 2 nd main body, the other end of which is formed in a manner that the one end can rotate as a center and is separated from the 2 nd main body by a certain distance, and the other end of which is contacted with the bottom surface by rotating with the one end as a center, and is used for obliquely and vertically supporting the main body.

In the conventional technique, the main body is placed on the stand portion in an inclined manner, and the object is sterilized and disinfected by Ultraviolet (UV) rays emitted from an Ultraviolet (UV) irradiation portion disposed on the main body.

However, the above-mentioned conventional techniques have a problem that the sterilization effect is poor because the sterilization object is exposed to the outside, and a problem that it is difficult to maintain a clean state because viruses or dust contained in the air are attached to the sterilization object.

[ Prior Art document ]

[ patent document ]

Korea Utility model publication No. 20-2011-

Korean registered patent No. 10-2177395 (publication No. 2020.11.05)

Korean laid-open patent No. 10-2016-0115585 (2016.10.06 publication)

Korean Utility model laid-open publication No. 20-2009-0011228 (2009.11.03 publication)

Korean registered Utility model No. 20-0239398 (published 2001.07.10)

Korean laid-open patent No. 10-2016-0066932 (2016.06.13 publication)

Disclosure of Invention

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a toothbrush sterilizer having sterilizing and drying functions, which can improve portability while reducing the size thereof, and can maximize the sterilizing and drying effects of bristles.

Further, it is an object of the present invention to provide a toothbrush sterilizer capable of performing a sterilization and drying function by communicating with an external device through a communication part disposed inside, and by which a control command transmitted from the external device can be executed, or by which an operating state of a sterilizing chamber or temperature information of the sterilizing chamber can be provided to the external device, so that a user can perform real-time control through the external device such as a smart phone.

To achieve the above object, the present invention includes: a housing having a sterilizing chamber formed therein, an inlet/outlet hole formed at one end thereof to communicate the sterilizing chamber with the outside, and a control chamber formed at a position opposite to the sterilizing chamber; a toothbrush rest module including a main body disposed in the sterilizing chamber of the housing in an accessible manner, and a bracket detachably coupled to the main body and used for detachably resting a toothbrush bar; a sterilizing module including a control Printed Circuit Board (PCB) mounted with an Ultraviolet (UV) lamp disposed in the control chamber and operating according to a loaded power supply and a signal to irradiate ultraviolet rays to the sterilizing chamber, a heating unit disposed in the control chamber and operating according to a loaded power supply and a signal to heat air introduced into the sterilizing chamber, and a battery for supplying power to the Ultraviolet (UV) lamp and the heating unit; and a sliding assembly for guiding the main body of the toothbrush placing module to move to the sterilizing chamber of the casing.

Further, the slide module includes: a pair of fixed magnets disposed on one side surface of the housing and at positions spaced apart from each other by a predetermined distance along a moving direction of the toothbrush placement module; a variable magnet disposed at one side of the body in a longitudinal direction and coupled to the pair of fixed magnets by a magnetic force; guide rails arranged in pairs on one side surface of the housing so as to be symmetrical to each other; and a pair of guide projections which are arranged in a pair on one side surface of the housing in a symmetrical manner and are movably arranged on the guide rail.

Further, the bracket is characterized in that: is made of flexible synthetic resin or rubber material or their combination with elastic restoring force, including: a bracket slot which is formed in a C-shaped form with one side opened so that the toothbrush rod can be detachably combined; a protrusion formed to protrude outward from an outer side surface and detachably coupled to the body; and a pair of concave surfaces formed symmetrically with each other on both sides in the width direction.

In this case, the bracket slot is characterized in that: provided with pressurizing protrusions elastically pressurized by the outer side surface of the coupled toothbrush rod.

In addition, the heating unit is characterized in that: equipped with a thermal barrier coating for directly transferring heat of the above heating assembly to an Ultraviolet (UV) lamp and minimizing a phenomenon of a Printed Circuit Board (PCB) for control.

The present invention configured as described above is portable by being miniaturized in size, and can maintain the cleanliness of bristles by drying while sterilizing the inserted bristles by providing an Ultraviolet (UV) lamp and a positive temperature coefficient thermistor (PTC) heating plate inside a case.

Further, stable movement and maintenance of the position after the movement are achieved by guiding and controlling the movement of the toothbrush rest module into and out of the housing using the slide assembly.

Further, washing is facilitated and cleaning of the toothbrush rest module is maintained by configuring the toothbrush rest module combined with the bristles in a manner of being detachable from the housing.

Further, by controlling the operation of the sterilization module or providing the operating state of the sterilization module or the environment of the sterilization chamber to the external device in such a manner that it can communicate with the external device by means of a control Printed Circuit Board (PCB) included in the sterilization module and a communication part provided therein and a control part provided to execute a control command received from the external device, it is possible to realize real-time operation control and confirm the operating state.

Drawings

Fig. 1 is a view illustrating a toothbrush sterilizer having sterilizing and drying functions to which the present invention is applied.

Fig. 2 is an exemplary view illustrating a disassembled state of a part of a toothbrush sterilizer having sterilizing and drying functions to which the present invention is applied.

Fig. 3 is an illustrative view illustrating a toothbrush shelving module to which the present invention is applied.

Fig. 4 is a state diagram illustrating a position moving state of a toothbrush rest module to which the present invention is applied.

Fig. 5 is an exemplary view illustrating the flow of air when the sterilization module to which the present invention is applied operates.

Description of reference numerals:

1: toothbrush sterilizer with sterilizing and drying functions

10: outer casing

11: sterilizing chamber

12: control room

13: cover

14: inlet and outlet hole

15: air circulation hole

20: toothbrush placing module

21: main body

22: bracket

30: sterilization module

31: control Printed Circuit Board (PCB)

32: battery with a battery cell

34: thermal barrier coating

311: ultraviolet (UV) lamp

312: heating assembly

40: sliding assembly

41: fixed magnet

42: variable magnet

43: guide rail

44: guide projection

Detailed Description

Other objects and features of the present invention, in addition to those described above, will be further apparent from the embodiments described with reference to the accompanying drawings.

Unless otherwise defined explicitly, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one having ordinary skill in the art to which this invention belongs. The meaning of commonly used terms, which have been defined in dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an exaggerated or formal sense unless explicitly defined otherwise in this specification.

Next, preferred embodiments of a toothbrush sterilizer equipped with sterilizing and drying functions to which the present invention is applied will be described in detail with reference to the accompanying drawings.

First, as shown in fig. 1 and 2, a toothbrush sterilizer 1 equipped with sterilizing and drying functions to which the present invention is applied includes: a housing 10 having a sterilizing chamber 11 formed therein, an inlet/outlet hole 14 formed at one end thereof to communicate the sterilizing chamber 11 with the outside, and a control chamber 12 formed at a position opposite to the sterilizing chamber 11; a toothbrush rest module 20 including a main body 21 disposed in the sterilizing chamber 11 of the housing 10 in an accessible manner, and a bracket 22 detachably coupled to the main body 21 and used for detachably resting the toothbrush bar CB; a sterilizing module 30 including a control Printed Circuit Board (PCB)31 mounted with an Ultraviolet (UV) lamp 311 disposed in the control chamber 12 and operating according to a power and a signal applied thereto to irradiate the sterilizing chamber 11 with ultraviolet rays, a heating unit 312 disposed in the control chamber 12 and operating according to a power and a signal applied thereto to heat air introduced into the sterilizing chamber 11, and a battery 32 for supplying power to the Ultraviolet (UV) lamp 311 and the heating unit 312; and a sliding unit 40 for guiding the main body 21 of the toothbrush shelf module 20 to move to the sterilizing chamber 11 of the housing 10.

The case 10 is formed in a box shape having a sterilizing chamber 11 and a control chamber 12 formed therein, and has an access hole 14 formed at one side thereof for allowing the toothbrush bristles CM to enter and exit by communicating the sterilizing chamber 11 with the outside.

In the case of the independent insertion, although it is necessary for the user to continuously hold the toothbrush bar coupled to the bristles CM during the sterilization and drying periods or insert the bristles CM in a state in which the housing 10 is laid on the floor, the bristles CM may be independently inserted into the sterilizing chamber 11 to be sterilized and dried, but there is a problem in that the sterilization effect and the drying effect may not be improved because the irradiation angle of the Ultraviolet (UV) lamp 311 irradiated into the sterilizing chamber 11 and the distance between the heating units 312 may not be maintained.

Therefore, the access hole 14 is preferably adapted to be capable of independently inserting the bristles CM and inserting the bristles CM into the sterilizing chamber 11 in a state of being stably seated in a toothbrush seating module 20 to be described later.

The form and size of the sterilizing chamber 11 are not particularly limited, but the form may be a space in a linear form capable of supporting the toothbrush placement module 20 to move linearly in the sterilizing chamber 11, and the size may be a size capable of ensuring an irradiation angle of short-wave ultraviolet rays (UV-C) irradiated from the ultraviolet ray (UV) lamp 311 of the sterilizing module 30 disposed in the control chamber 12 and circulating air heated by the heating unit 312.

As an example, when the area of the bristles, which are the sterilization object items, is 1cm × 2.5cm, the ultraviolet ray irradiated from the Ultraviolet (UV) lamp 311 is short-wave ultraviolet ray (UV-C) having a wavelength of 275nm and 25mJ/cm is used in order to achieve 99.9% bactericidal power of bacteria, based on 2.5cm, which is relatively far away from the bristles²The highest energy efficiency can be obtained when the angle of irradiation from the Ultraviolet (UV) lamp is 30 °.

In the above embodiment, when the size of the Ultraviolet (UV) lamp 311 is 3.5mm and the irradiation angle is 30, a distance of at least 3.6cm should be secured between the Ultraviolet (UV) lamp 311 and the bristles having a length of 2.5 cm. In addition, the sterilizing chamber is formed in a size including the thickness of the toothbrush rod on which the bristles are arranged.

The inlet and outlet hole 14 is formed to communicate the sterilizing chamber 11 with the outside and to penetrate through one side of the housing 10.

The control chamber 12 is formed in a position facing the sterilizing chamber 11 in the housing 10, and is a space for arranging a sterilizing module 30 described later.

A control Printed Circuit Board (PCB)31 constituting the sterilization module 30 is disposed on a boundary between the sterilization chamber 11 and the control chamber 12, and the control Printed Circuit Board (PCB)31 functions as a partition wall for partitioning the sterilization chamber and the control chamber.

In addition, an air circulation hole 15 for circulating air of the sterilizing chamber and external air in the process of drying the bristles in the sterilizing chamber 11 is formed in the case 10.

The air circulation holes 15 are formed in a direction opposite to the inlet and outlet holes 14, so that external air is introduced into the sterilizing chamber through the inlet and outlet holes 14 and the air in the sterilizing chamber is discharged to the outside through the air circulation holes 15, thereby circulating the external air and the air of the sterilizing chamber and thus enhancing a drying effect, and melting and firing of bristles can be prevented by preventing the temperature of the sterilizing chamber from being continuously raised due to the operation of the heating unit 312 and thus minimizing damage to the bristles.

In addition, a cover 13 for opening and closing one side of the control chamber 12 is further provided in the housing 10, and the cover 13 can open one side of the control chamber 12 when maintenance of a control Printed Circuit Board (PCB)31 disposed in the control chamber 12 or replacement of the battery 32 is required, thereby easily performing a corresponding operation.

At this time, a slip prevention pattern 131 for preventing a slip when a user grips the cap may be formed on one side surface exposed to the outside of the cap 13.

Further, the edge of the cover 13 is provided with coupling pins 132, and the coupling pins 132 are formed in pairs at the edge of the cover 13 in a symmetrical manner with each other.

In addition, a fixing frame 16 for preventing a positional displacement of a battery 32 constituting a sterilization module 30 to be described later and detachably coupled to the cover 13 is provided in the control room 12.

The fixing frame 16 includes a base material 161 formed in a flat plate shape and a pair of space maintaining pieces 162 formed symmetrically at edges of the base material and protruding toward the control chamber 12 side, and a groove 163 detachably coupled to the coupling pin 132 of the cover 13 is formed in the space maintaining piece 162.

The fixing frame 16 as described above can minimize the movement of the battery 32 inside the control cabin 12 during the movement by defining the space of the control cabin 12, and the above-described space maintaining piece 162 serves to secure the disposition space of the battery 32.

The toothbrush placement module 20 is configured to be inserted into and removed from the housing 10, and is used to place toothbrush bristles CM, which are objects to be sterilized, and includes a main body 21 disposed in the sterilizing chamber 11 of the housing 10 to be inserted into and removed from the same, and a holder 22 detachably coupled to the main body 21 and used to detachably place a toothbrush bar CB.

The body 21 is formed with a receiving space capable of receiving the bristles CM placed on the holder 22, and the receiving space is formed with an opening 211 opened at one side, so that long wavelength ultraviolet (UV-a) and short wavelength ultraviolet (UV-C) rays irradiated through the sterilizing module 30 are transmitted to the bristles, and the air flow is prevented from being blocked by forming an open hole 212 communicated with the air circulation hole 15.

In addition, the main body 21 may be formed of a transparent synthetic resin material or a glass frit for confirming the bristles from the outside in a state of being discharged from the sterilizing chamber 11 of the case 10, but this is only an embodiment and the present invention is not limited thereto.

Further, a coupling groove 213 and a coupling projection 214 detachably coupled to the bracket 22 are formed in the body 21, the coupling groove 213 is formed to penetrate an inner surface and an outer surface of the body 21, and the coupling projection 214 is formed to be projected in a pair in a symmetrical manner on the inner surface of the body 21 and is fitted and coupled to a concave surface 223 of the bracket 22, which will be described later.

In addition, a through hole 215 for circulating air together with the open hole 212 is formed in the main body 21, and a stopper 216 for limiting a moving direction of air circulating in a state where the main body 21 is inserted into the sterilizing chamber 11, that is, in a process of performing sterilization and drying is formed.

The stopper 216 is formed at the lower end of the main body 21 with reference to fig. 5 illustrating the movement of air when the sterilizing module described later is operated, and can restrict the downward movement of air in the sterilizing chamber in a state where the bristles CM are inserted into the sterilizing chamber 11 of the main body.

Therefore, the heated air in the sterilizing chamber can be discharged to the outside through the air circulation hole formed at the upper end, and the new air can flow in through the inlet and outlet holes, so that the drying effect can be maximized by means of air circulation.

The above bracket 22 is detachably combined with the above body 21 and is used to detachably rest the toothbrush bar CB, and for this purpose, includes: a bracket groove 221 which is formed in a C-shaped form with one side opened and allows the toothbrush bar CB to be detachably coupled thereto; a protrusion 222 which is formed to protrude outward from the outer side surface and is detachably coupled to the main body 21; and a pair of concave surfaces 223 formed symmetrically with each other on both sides in the width direction.

The holder 22 is made of a flexible synthetic resin or rubber material having an elastic restoring force or a combination thereof so as to elastically press the toothbrush bar CB, and elastically presses the outer surface of the toothbrush bar CB. Therefore, the bracket groove 221 is formed in a C-shape having one side opened, and is formed at an interval where the interval of the opening is relatively narrower than the width of the outer side surface of the toothbrush bar CB, thereby elastically pressing the outer side surface of the toothbrush bar CB on which the bracket groove is placed.

The protrusion 222 is formed to protrude outward from the outer side surface of the bracket 22, and is detachably fitted and coupled to the coupling groove 213 formed in the body 21.

The concave surfaces 223 are formed at both ends of the bracket 22 in the width direction, respectively, and are used for the engagement of the engagement protrusions 214 formed on the body 21, wherein the concave surfaces 223 and the engagement protrusions 214 are not in the form of male and female engagement, but are engaged in the form of one side surfaces of the concave surfaces 223 and the engagement protrusions 214 being in close contact, and in this case, the concave surfaces 223 can be in close contact with the adjacent engagement protrusions 214 and maintained in a close contact state by the surface friction force of the synthetic resin or the rubber material, because the bracket 22 is made of the flexible synthetic resin or the rubber material or the combination thereof having the elastic restoring force as described above.

The reason why the bracket 22 is detachably coupled with the main body 21 by the convex protrusions 222 and the concave surfaces 223 constructed as described above is that if the main body 21 is contaminated by foreign substances in a state of being exposed to the outside, it is possible to perform washing and drying after separating the bracket 22 from the main body 21 when separating it from the housing 10 and performing washing.

This is to prevent the tray composed of synthetic resin or rubber material or a combination thereof from being deformed due to washing and drying environments such as the temperature of washing water, the nature of washing water or the drying temperature.

Further, the bracket groove 221 is provided with a fixing pressing protrusion 224 which elastically presses the inserted toothbrush bar CB by coming into contact with the outer circumferential surface thereof, and the fixing pressing protrusion 224 is formed to protrude in a direction facing each other in a pair of separate bodies which form the opening of the bracket groove 221.

In this case, the arrangement position and the arrangement number of the fixing pressing projections 224 may be variously changed, and are not limited to the illustrated positions and number.

The fixing pressure protrusions 224 are used for toothbrush rods CB having different thicknesses and widths, and can be rested by elastically pressing the outer circumferential surface of the toothbrush rod CB having a relatively thin thickness using the fixing pressure protrusions 224.

The sterilization module 30 is configured in the control room 12 of the housing 10 to sterilize and dry the toothbrush bristles inserted into the sterilization room 11, and includes: a control Printed Circuit Board (PCB)31 on which an Ultraviolet (UV) lamp and a heating assembly 312 are mounted, respectively; and a battery 32 for supplying power required for the operation of the Ultraviolet (UV) lamp and the heating assembly 312.

The control PCB 31 is configured in a form of a Printed Circuit Board (PCB) substrate on which an Ultraviolet (UV) lamp 311, a heating element 312, a communication part 314 disposed in the control room 12 and capable of transmitting and receiving data to and from an external device, and a control part 313 for controlling operations of the Ultraviolet (UV) lamp 311 and the heating element 312 are mounted, wherein a detailed description thereof will be omitted herein since configurations and operational relationships of the communication part 314 and the control part 313 are well known matters.

The control Printed Circuit Board (PCB)31 may be configured to transmit and receive data to and from an external device, such as a portable terminal capable of wireless communication, such as a user's smart phone.

In addition, a control program in the form of an application program that can control the operation of the control Printed Circuit Board (PCB)31 and confirm the operation state thereof is previously installed in the external device, and since the application program as described above belongs to a well-known control program, a detailed description thereof will be omitted herein.

The Ultraviolet (UV) lamps 311 are mounted on the control Printed Circuit Board (PCB)31, and a plurality of them are mounted at positions spaced apart from each other by a predetermined distance.

Wherein, the Ultraviolet (UV) lamp 311 includes: a pair of long-wavelength ultraviolet (UV-a) lamps 311a disposed at positions spaced apart from each other by a predetermined distance, operated according to a power supply and a signal applied thereto, and irradiating a wavelength of long-wavelength ultraviolet (UV-a) to the outside; and short wavelength ultraviolet (UV-C) lamps 311b disposed between the long wavelength ultraviolet (UV-a) lamps 311a and operated according to a power supply and a signal applied thereto, for irradiating short wavelength ultraviolet (UV-C) light to the outside.

The wavelength of the long-wavelength ultraviolet (UV-a) light emitted from the long-wavelength ultraviolet (UV-a) lamp is 315nm to 400nm, and it is known that the long-wavelength ultraviolet (UV-a) light has a characteristic of increasing the thickness of plant leaves or promoting color development of pigments and attracting pests.

However, since it is known that the sterilization effect cannot be achieved at the wavelength of 315nm to 400nm, which is a wavelength of long-wavelength ultraviolet (UV-A), the long-wavelength ultraviolet (UV-A) lamp 311a used in the present invention irradiates light having a wavelength of 405 nm.

The wavelength of 405nm is a wavelength that belongs to the boundary between the wavelength of long-wavelength ultraviolet (UV-a) (315nm to 400nm) and the wavelength of visible light (400nm to 800nm), and is a wavelength that can achieve sterilization and is harmless to the human body.

The bactericidal effect that can be achieved at a wavelength of 405nm uses the principle known as porphyrin degradation reaction, and uses the principle of sterilizing a substance that is present in bacteria, is known as porphyrin, and reacts most easily at 405 nm.

It is known that the short wavelength ultraviolet (UV-C) lamp 311b can radiate light having the strongest sterilizing effect, but must not leak to the outside because of having a disadvantage of being harmful to the human body, and has a disadvantage of being relatively expensive compared to the long wavelength ultraviolet (UV-a) lamp 311 a.

Therefore, in the present invention, a high sterilization effect can be achieved in a short time by disposing the short wavelength ultraviolet (UV-C) lamp 311b, which is relatively expensive but has high sterilizing power, and the long wavelength ultraviolet (UV-a) lamp 311a, which is relatively inexpensive and has limited sterilizing power but can irradiate light having a wavelength of 405nm that is harmless to the human body.

The heating unit 312 is disposed to surround the Ultraviolet (UV) lamp 311 and heats air of the sterilizing chamber by operating according to a power and a signal applied thereto, and the heating unit 312 may be formed of any one of a ceramic heating rod or a resistor or a positive temperature coefficient thermistor (PTC) heater as described above.

Further, the thermal barrier coating 34 is formed on a surface of the heating unit 312 disposed in the direction of the Ultraviolet (UV) lamp 311, and the thermal barrier coating 34 minimizes a phenomenon in which heat of the heating unit 312 is directly transferred to the Ultraviolet (UV) lamp 311 and the control Printed Circuit Board (PCB)31 during operation of the heating unit 312, thereby preventing the Ultraviolet (UV) lamp from being abnormally or damaged.

As a coating agent for forming the above thermal barrier coating 34, a slurry composed of 60 to 70 wt% of alumina, 5 to 10 wt% of clay, 1 to 5 wt% of nickel oxide, 1 to 5 wt% of boron oxide, 10 to 15 wt% of sodium silicate, and 10 to 20 wt% of medium pore type silica may be used.

The thermal barrier coating is preferably formed to have a thickness of 10 to 50 μm, and the thermal barrier coating prevents heat generated in the heating element 312 from being transferred to a Printed Circuit Board (PCB) substrate constituting the control PCB 31, and ensures that the heat is transferred only in the bristle direction.

Further, in order to use the above slurry as a coating agent, 10 to 15 parts by weight of water may be added to 100 parts by weight of a mixture in which 60 to 70% by weight of alumina, 5 to 10% by weight of clay, 1 to 5% by weight of nickel oxide, 1 to 5% by weight of boron oxide, 10 to 15% by weight of sodium silicate, and 10 to 20% by weight of mesoporous silica are mixed to be slurried, thereby forming a thermal barrier coating.

The alumina constituting the coating agent is a main component forming the slurry, and since a silicon-aluminum oxide can be formed by reaction with sodium silicate, the heat resistance of the coating agent can be maintained even when the coating layer is deteriorated by heat.

When the amount of the alumina is less than 60% by weight, there is a possibility that the heat resistance is insufficient, and when the amount of the alumina exceeds 70% by weight, the adhesion is lowered to lower the durability of the joint portion, so that the addition is preferably within the above range.

The clay is preferably added in the above range because the clay is added to the silica in an amount not dissolving the sodium silicate to promote the reaction with alumina and the binding force is decreased when the amount is more than 5 to 10 wt%.

The nickel oxide and the boron oxide are used as components that lower the softening point of the inorganic binder by adding the components to the inorganic binder, and the heat resistance of the inorganic binder can be improved by applying the nickel oxide and the boron oxide to the coating agent, so that the stability of the inorganic binder can be improved even in a state of being continuously exposed to high temperature.

The content of nickel oxide and boron oxide is preferably in the range of 1 to 5 wt%, and if the content is too low, the durability of the joint may be deteriorated due to the decrease in heat resistance at high temperature, and if the content is too high, the adhesion may be deteriorated, thereby causing a problem of failure in the joint.

In addition, the content of the mesoporous silica is in the range of 10 to 20 wt%, and may function to promote heat transfer by forming fine pores (void) on the adhesive layer.

By including the mesoporous silica, even when the heat insulating coating is heated, the effect of releasing heat to the outside after storing the heat for a certain period of time can be exhibited, and therefore, effective heat insulating performance can be achieved.

The mesoporous silica can be produced by forming droplets from an aqueous alkoxysilane solution, then adding an acid to the droplets to hydrolyze the droplets, then combining the liquids by adding a base to form a shell, then forming mesopores by etching the inside of the shell with an organic solvent, and finally filtering and drying the mesopores.

The inner pores of the mesoporous silica as described above are 40nm to 500nm, and can be manufactured using a general manufacturing method as disclosed in korean registered patent No. 10-1724603 or other documents.

The battery 32 is used to supply power required by the Ultraviolet (UV) lamp 311 and the heating element 312, and is detachably coupled to the control room 12.

Further, the above-mentioned battery 32 can be recharged through the charging terminal 33 provided in the control Printed Circuit Board (PCB)31, and since the rechargeable battery as described above is a well-known matter, detailed description about the detailed structure and operational relationship will be omitted.

The slide module 40 is moved to the sterilizing chamber 11 of the housing 10 by guiding the main body 21 of the toothbrush shelf module 20, and includes: a pair of fixed magnets 41 disposed on one side surface of the housing 10 at positions spaced apart from each other by a predetermined distance along the moving direction of the toothbrush placement module 20; a variable magnet 42 disposed on one side in the longitudinal direction of the main body 21 and coupled to the pair of fixed magnets 41 by a magnetic force; guide rails 43 arranged in pairs on one side surface of the housing 10 so as to be symmetrical to each other; and a pair of guide protrusions 44 which are symmetrically arranged on one side surface of the housing 10 in pairs and are movably arranged on the guide rail 43.

The fixed magnets 41 are arranged in pairs at positions spaced apart from each other by a predetermined distance on one side surface of the housing 10, and are arranged at positions spaced apart from each other by a predetermined distance in the vertical direction with reference to fig. 4 illustrating a position moving state of the toothbrush placement module to which the present invention is applied.

Among them, the above-mentioned fixed magnet 41 may be fixed to a variable magnet 42 described later by a magnetic force and fixed to a wall of a metal material by a magnetic force, thereby fixing the housing 10 to the wall.

The variable magnet 42 is disposed on one longitudinal side of the body 21 and on the upper longitudinal side of the body 21 with reference to fig. 4.

Further, a guide projection 44 is movably disposed in the guide rail 43.

The slide module 40 configured as described above can fix the variable magnet 42 to the fixed magnet 41 disposed at the upper side by a magnetic force when the user inserts the main body 21 into the sterilizing chamber 11 of the housing 10, and can fix the variable magnet 42 to the fixed magnet 41 disposed at the lower side by a magnetic force when the user pulls out the main body 21 from the sterilizing chamber 11.

At this time, the guide rail 43 and the guide protrusion 44 may secure the moving stability of the main body 21 and prevent the position thereof from being separated.

As described above, the above-described slide assembly 40 can fix the variable magnet 42 to the fixed magnet 41 disposed at the upper or lower side by a magnetic force and thereby maintain the position after the displacement, while the main body can maintain the movement stability and prevent the position thereof from being deviated by the guide rail and the guide protrusion during the movement.

As described above, specific matters such as specific constituent elements and limited embodiments and drawings are described in the present invention, but this is provided only to help the more comprehensive understanding of the present invention, and the present invention is not limited to the above embodiments, and various modifications and variations can be made by those having ordinary knowledge in the art to which the present invention pertains based on the above descriptions.

Therefore, the idea of the present invention should not be limited to the described embodiments, and the scope of the claims to be described later and the modifications equivalent or equivalent to the scope of the claims should be construed to be included in the idea of the present invention.

Claims

1. A toothbrush sterilizer equipped with sterilizing and drying functions, comprising:

a housing (10) having a sterilizing chamber (11) formed therein, an inlet/outlet hole (14) formed at one end thereof for communicating the sterilizing chamber (11) with the outside, and a control chamber (12) formed at a position facing the sterilizing chamber (11);

a toothbrush rest module (20) including a main body (21) disposed in an accessible manner in the sterilizing chamber (11) of the housing (10), and a bracket (22) detachably coupled to the main body (21) and serving to detachably rest a toothbrush bar (CB);

a sterilization module (30) including an ultraviolet lamp (311) disposed in the control chamber (12) and configured to irradiate the sterilization chamber (11) with ultraviolet rays by operating according to the applied power and signal, a control printed circuit board (31) disposed in the control chamber (12) and configured to heat air introduced into the sterilization chamber (11) by operating according to the applied power and signal, and configured to apply power and signal to the ultraviolet lamp (311) and the heating assembly (312), and a battery (32) configured to supply power to the ultraviolet lamp (311) and the heating assembly (312); and (c) a second step of,

a sliding assembly (40) for moving the toothbrush rest module (20) to the sterilizing chamber (11) of the housing (10) by guiding the main body (21) thereof.

2. The sterilizer equipped with sterilizing and drying functions of claim 1, wherein:

the sliding assembly (40) comprises:

a pair of fixed magnets (41) disposed on one side surface of the housing (10) and at positions spaced apart from each other by a predetermined distance along the moving direction of the toothbrush placement module (20);

a variable magnet (42) which is arranged on one side of the main body (21) in the longitudinal direction and is coupled to the pair of fixed magnets (41) by means of magnetic force;

guide rails (43) arranged in pairs on one side surface of the housing (10) in a mutually symmetrical manner; and (c) a second step of,

and a pair of guide projections (44) which are arranged in pairs on one side surface of the housing (21) so as to be symmetrical to each other and are movably arranged on the guide rail (43).

3. The sterilizer equipped with sterilizing and drying functions of claim 1, wherein:

the bracket (22) is made of flexible synthetic resin or rubber material or a combination thereof having elastic restoring force, and comprises:

a bracket slot (221) which is formed in a C-shaped form with one side opened so that the toothbrush rod (CB) can be detachably combined;

a protrusion (222) which is formed to protrude outward from an outer side surface and is detachably coupled to the main body (21); and the number of the first and second groups,

a pair of concave surfaces (223) formed symmetrically with each other on both sides in the width direction.

4. The sterilizer equipped with sterilizing and drying functions of claim 3, wherein:

the bracket groove (221) is provided with a pressing protrusion (224) elastically pressed by an outer side surface of the coupled toothbrush bar (CB).

5. The sterilizer equipped with sterilizing and drying functions of any one of claims 1 to 3, wherein:

the heating assembly (312) is equipped with a thermal barrier coating for minimizing the phenomenon that the heat of the heating assembly (312) is directly transferred to the ultraviolet lamp (311) and the control printed circuit board (31).