Light-emitting hygiene device comprising PCB directly assembled to body

GB2633991APending Publication Date: 2025-03-26CHA HEECHAN
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Patent Information

Application Number
GB2024018010
Authority / Receiving Office
GB · GB
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-05-09
Filing Date
2023-05-09
Publication Date
2025-03-26

AI Technical Summary

Technical Problem

Existing electric toothbrushes with vibration motors and light irradiation capabilities have a complex three-piece PCB structure, leading to increased costs, noise, and poor vibration stability due to physically separated components.

Method used

A light irradiation sanitary device with a PCB directly assembled into the main body, where the PCB includes a vibration motor attached through a toothbrush bristle plate, reducing noise and improving vibration stability by integrating the motor directly into the internal rib of the main body.

Benefits of technology

This design reduces noise, enhances vibration stability, improves assembly efficiency, and lowers costs by simplifying the structure and reducing the number of components, thereby increasing durability and productivity.

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Abstract

The present invention relates to a light-emitting hygiene device comprising a PCB directly assembled to the body thereof, the light-emitting hygiene device comprising: a body portion housing a head po
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Description

A light-emitting sanitary device having a PCB that is assembled directly into the body.

[0001] The present invention relates to a light-emitting hygiene device having a PCB (Printed Circuit Board) that is directly assembled to a main body, and more specifically, to a light-emitting hygiene device having a PCB that is directly assembled to a main body, which constitutes an electric toothbrush, and in which a PCB having a vibration motor attached thereto can be directly assembled to a rib inside the main body.

[0002] To maintain dental hygiene, toothbrushing or mouthwash containing chemical antibacterial agents are commonly used to remove oral bacteria that cause plaque and tartar. Electric toothbrushes are increasingly being released as a means of effectively brushing teeth. Furthermore, because regular brushing alone is ineffective in removing bacteria, electric toothbrushes that emit light of a specific wavelength have also been released. However, chemical removal using mouthwash is generally the only method used. Recently, many light-emitting electric toothbrushes have been released that emit white light, and blue and red LEDs have been added. However, they have the limitation of not providing a specific method for effectively suppressing oral bacteria. Specifically, existing electric toothbrushes feature an internal vibration motor and an antibacterial function that emits light. However, the vibration motor is housed in a plastic housing and is physically separated from the circuit board, and is typically composed of three PCBs: a circuit board for forming the light source, a circuit board for connecting the vibration motor, and a circuit board for connecting the battery. These existing electric toothbrushes feature a three-piece PCB structure, which increases cost and manufacturing process, and suffer from increased noise and reduced vibration stability during use. Republic of Korea Patent No. 10-0773210 is disclosed as a prior art document.

[0003] The present invention has been proposed to solve the above-mentioned problems of the existing proposed methods, and the purpose of the present invention is to provide a light irradiation hygiene device having a PCB directly assembled to the body, including a main body forming the housing exterior of a handle portion and a head portion, a PCB configured in a shape corresponding to the shape of the main body and disposed inside the main body portion, wherein a power button is formed in the handle portion area and a light source portion including a plurality of light sources that irradiate light through a waveguide is formed in the head portion area, a vibration motor disposed in an upper area of ​​the handle portion of the main body portion and attached to the PCB by soldering, and a toothbrush head plate positioned and fastened above the light source portion formed in the head portion area of ​​the PCB, wherein the PCB having the vibration motor attached thereto is configured to be directly assembled to an internal rib of the main body portion, thereby reducing noise using the PCB-attached vibration motor, and further improving the convenience of use due to the noise reduction effect and increased vibration stability through vibration stability. In addition, the present invention provides a light-emitting sanitary device having a PCB that is directly assembled to a main body, which configures a structure in which multiple or divided structures in an existing PCB are configured as a single-piece structure, but the PCB is configured to be directly assembled to an internal rib of a main body, thereby improving cost competitiveness due to reduction of parts, and also improving assembly efficiency and assembly speed, and further improving durability by minimizing causes of failure by eliminating connecting parts as it is directly assembled to the exterior. In addition, the present invention provides a light-emitting sanitary device having a PCB that is directly assembled to a main body, which configures a structure in which a vibration motor is attached to the PCB and the PCB is assembled in contact with the exterior of the main body of the main body, thereby reducing the number of parts that vibrate due to vibration and reducing noise, and simplifying the manufacturing process, thereby reducing costs and improving productivity.

[0004]

[0005] In order to achieve the above object, a light irradiating sanitary device having a PCB directly assembled to a main body according to the features of the present invention is a light irradiating sanitary device having a PCB (Printed Circuit Board) directly assembled to a main body, comprising: a main body forming a housing exterior of a handle portion and a head portion; a PCB configured in a shape corresponding to the shape of the main body portion and disposed inside the main body portion, wherein a power button is formed in the handle portion area and a light source portion including a plurality of light sources that irradiate light through a waveguide is formed in the head portion area; a vibration motor disposed in an upper area of ​​the handle portion of the main body portion and attached to the PCB by soldering; and a toothbrush head plate positioned and fastened to an upper portion of the light source portion formed in the head portion area of ​​the PCB, the toothbrush head plate having toothbrush bristles formed of at least one waveguide, wherein the PCB having the vibration motor attached thereto may be configured in a structure in which the PCB is directly assembled to an internal rib of the main body portion. Preferably, the PCB is configured as a one-piece structure that can be placed inside in a shape corresponding to the shape of the main body, and the PCB can be structured so that the assembly and assembly speed are improved by being directly assembled to the internal rib of the main body, and the durability can be improved by eliminating the connecting parts due to being directly assembled to the main body. Preferably, the PCB can be configured to further include a battery connector that is formed and placed inside the handle of the main body. Preferably, the light source unit of the PCB includes a first light source that irradiates light with a short wavelength and a second light source that irradiates light with a long wavelength, and the plurality of light sources can be configured as a set including at least one first light source that irradiates light with a short wavelength and a set including at least one second light source that irradiates light with a long wavelength. More preferably, the light source unit can be configured as a structure in which a plurality of light sources are repeatedly arranged.More preferably, the light source unit includes a first light source that irradiates short-wavelength light and a second light source that irradiates long-wavelength light, wherein the short-wavelength light irradiated from the first light source may be blue light, and the long-wavelength light irradiated from the second light source may be red light. More preferably, the light source unit may include the first light source and the second light source as LEDs (Light-Emitting-Diodes) or laser diodes. More preferably, the toothbrush bristles plate includes toothbrush bristles formed of at least one waveguide, wherein the toothbrush bristles formed of the waveguide may be formed of optical fibers.

[0006] According to a light irradiating hygiene device having a PCB directly assembled into a main body proposed in the present invention, there is provided a main body forming a housing exterior of a handle portion and a head portion, a PCB configured in a shape corresponding to the shape of the main body portion and disposed inside the main body portion, wherein a power button is formed in the handle portion area and a light source portion including a plurality of light sources that irradiate light through a waveguide is formed in the head portion area, a vibration motor disposed in an upper area of ​​the handle portion of the main body portion and attached to the PCB by soldering, and a toothbrush head plate having toothbrush bristles formed of at least one waveguide and positioned and fastened above the light source portion formed in the head portion area of ​​the PCB, wherein the PCB having the vibration motor attached thereto is configured in a structure directly assembled to an internal rib of the main body portion, thereby reducing noise using the PCB-attached vibration motor, and further improving the convenience of use due to the noise reduction effect and increased vibration stability through vibration stability. In addition, according to the light-illuminating sanitary device having a PCB that is directly assembled to the main body of the present invention, a structure that is multiple or divided in an existing PCB is configured as a single-piece structure, but the PCB is configured in a structure that is directly assembled to an internal rib of the main body, thereby improving cost competitiveness due to reduction of parts, and also improving assembly efficiency and assembly speed, and further improving durability by minimizing causes of failure by eliminating connecting parts as it is directly assembled to the outer shape. In addition, according to the light-illuminating sanitary device having a PCB that is directly assembled to the main body of the present invention, a vibration motor is attached to the PCB, and the PCB is configured to be assembled in a structure that is in contact with the outer shape of the main body of the main body, thereby reducing the number of parts that vibrate due to vibration, thereby reducing noise, and simplifying the manufacturing process, thereby reducing costs and improving productivity.

[0007] FIG. 1 is a diagram illustrating a configuration of a light irradiating sanitary device having a PCB directly assembled to a main body according to an embodiment of the present invention in the form of functional blocks. FIG. 2 is a diagram illustrating a configuration of a main body of a light irradiating sanitary device having a PCB directly assembled to a main body according to an embodiment of the present invention in the form of functional blocks. FIG. 3 is a diagram illustrating a configuration of a PCB of a light irradiating sanitary device having a PCB directly assembled to a main body according to an embodiment of the present invention in the form of functional blocks. FIG. 4 is a diagram illustrating a schematic perspective view of a light irradiating sanitary device having a PCB directly assembled to a main body according to an embodiment of the present invention. FIG. 5 is a diagram illustrating a schematic perspective view of a main body of a light irradiating sanitary device having a PCB directly assembled to a main body according to an embodiment of the present invention. FIG. 6 is a diagram illustrating a schematic front view of a main body of a light irradiating sanitary device having a PCB directly assembled to a main body according to an embodiment of the present invention. FIG. 7 is a schematic diagram illustrating the front and rear configuration of a PCB of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to an embodiment of the present invention. FIG. 8 is a diagram illustrating the relationship between the positions of a light source unit and a toothbrush bristles plate of a PCB of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to an embodiment of the present invention. FIG. 9 is a diagram illustrating the configuration of a light source unit and a toothbrush bristles plate of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to an embodiment of the present invention in a coupled state. FIG. 10 is a diagram illustrating a plan view configuration of a toothbrush bristles plate of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to an embodiment of the present invention.

[0008] Hereinafter, with reference to the attached drawings, preferred embodiments will be described in detail so that those skilled in the art can easily practice the present invention. However, when describing preferred embodiments of the present invention in detail, if it is determined that a specific description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, parts having similar functions and actions are designated by the same reference numerals throughout the drawings. In addition, throughout the specification, when it is said that a part is 'connected' to another part, this includes not only the case where it is 'directly connected' but also the case where it is 'indirectly connected' with another element in between. In addition, when a component is 'included', it does not mean that other components are excluded, but that other components may be further included, unless specifically stated otherwise.

[0009] FIG. 1 is a drawing showing the configuration of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention as a functional block, FIG. 2 is a drawing showing the configuration of a main body of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention as a functional block, FIG. 3 is a drawing showing the configuration of a PCB of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention as a functional block, FIG. 4 is a drawing showing a schematic perspective view of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention, FIG. 5 is a drawing showing a schematic perspective view of the configuration of a main body of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention, FIG. 6 is a drawing showing a schematic configuration of a front side of a main body of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention, and FIG. 7 is a drawing showing the front side and the PCB of a light irradiating sanitary device having a PCB that is directly assembled to a main body according to one embodiment of the present invention. This is a drawing schematically illustrating the rear configuration. As illustrated in FIGS. 1 to 7, a light irradiating hygiene device (100) having a PCB directly assembled to a main body according to an embodiment of the present invention may be configured to include a main body (110), a PCB (120), a vibration motor (130), and a toothbrush bristles plate (140). The main body (110) is a configuration of a main body that forms the housing exterior of a handle (111) and a head (112). The handle (111) of the main body (110) is a portion where a user holds the toothbrush, and a power button (121) may be exposed. Here, a toothbrush bristles (141) and a massage bristles (142) configured as waveguides, which will be described later, and a light source (122) are arranged in the head (112) of the main body (110), and light irradiated from the light source can be transmitted to the user's teeth or gums through the toothbrush bristles (141).The PCB (120) is a printed circuit board configured in a shape corresponding to the shape of the main body (110) and arranged inside the main body (110), with a power button (121) formed in the handle area and a light source area (122) including a plurality of light sources that irradiate light through a waveguide formed in the head area. As illustrated in FIGS. 6 and 7, the PCB (120) is configured in a one-piece structure that can be arranged inside in a shape corresponding to the shape of the main body (110), and the PCB (120) is directly assembled to the internal rib of the main body (110), so that assembly efficiency and assembly speed are improved, and durability can be improved by eliminating connecting parts due to direct assembly to the main body. Here, the PCB (120) can function to simplify the manufacturing process and reduce costs by being configured in a one-piece structure, unlike the multiple or divided structures of existing PCBs. In addition, the PCB (120) to which the vibration motor (130) is attached can be configured to be directly assembled to the inner rib of the main body (110). This assembly structure can function to improve cost competitiveness by reducing parts. In addition, the PCB (120) to which the vibration motor (130) is attached can function to improve durability by eliminating the cause of failure by eliminating connecting parts by being directly assembled to the outer shape of the main body (110), and to improve noise reduction by reducing the number of parts that vibrate due to vibration. In addition, the PCB (120) to which the vibration motor (130) is attached can function to be directly assembled to the main body (110) so that assembly ease and assembly speed are improved, and vibration transmission efficiency can be improved. In addition, the PCB (120) can be configured to further include a battery connector (123) that is formed by being arranged inside the handle portion (111) of the main body (110).In addition, the light source unit (122) of the PCB (120) includes a first light source (122a) that irradiates short-wavelength light and a second light source (122b) that irradiates long-wavelength light, and the plurality of light sources may be configured with a structure of a set including at least one first light source (122a) that irradiates short-wavelength light and a set including at least one second light source (122b) that irradiates long-wavelength light. In addition, the light source unit (122) may be configured with a structure in which a plurality of light sources are repeatedly arranged. This light source unit (122) includes a first light source (122a) that irradiates short-wavelength light and a second light source (122b) that irradiates long-wavelength light, and the short-wavelength light irradiated from the first light source (122a) may be blue light, and the long-wavelength light irradiated from the second light source (122b) may be red light. In addition, the light source unit (122) may be composed of light in the ultraviolet, infrared or other visible light ranges in addition to red or blue, and may also be composed of yellow or green. In addition, the light source unit (122) may be composed of a first light source (122a) and a second light source (122b) using an LED (Light-Emitting-Diode) or a laser diode. The vibration motor (130) is arranged in the upper region of the handle unit (111) of the main body unit (110) and is configured to be attached to the PCB (120) by soldering. Since the vibration motor (130) is configured in a structure that is attached to the PCB (120), noise due to vibration when the electric toothbrush is used is reduced and vibration stability is increased. In other words, the convenience of use can be improved due to noise reduction and increased vibration stability by configuring it in a fixed form that is attached to the PCB (120) rather than the existing separate motor type. Here, the vibration motor (130) can generate vibrations in the light irradiation hygiene device (100) to enable the function of the electric toothbrush to be performed. The toothbrush bristles plate (140) is positioned and fastened on the upper portion of the light source portion (122) formed in the head portion area of ​​the PCB (120), and is configured to have toothbrush bristles (141) formed of at least one waveguide.This toothbrush bristles (141) are formed by at least one waveguide, and the toothbrush bristles (141) formed by the waveguide may be formed by an optical fiber. FIG. 8 is a drawing showing the relationship between the positions of the light source unit of the PCB and the toothbrush bristles of a light irradiation sanitary device having a PCB that is directly assembled to the main body according to an embodiment of the present invention, FIG. 9 is a drawing showing the configuration of the light source unit of the light irradiation sanitary device having a PCB that is directly assembled to the main body according to an embodiment of the present invention and the toothbrush bristles of a combined state, and FIG. 10 is a drawing showing the plan view configuration of the toothbrush bristles of the light irradiation sanitary device having a PCB that is directly assembled to the main body according to an embodiment of the present invention. As shown in FIGS. 8 to 10, the toothbrush bristles (141) include at least one waveguide to irradiate light irradiated from a light source to the outside. Here, the waveguide refers to a tube having the property of transmitting light generated from a light source. The toothbrush bristles (141) can transmit light irradiated from a light source to the user's teeth, and the toothbrush bristles (141) using a waveguide can be manufactured and configured with optical fibers. In addition, the massage bristles (142) can also be manufactured using a waveguide. Here, the massage bristles (142) are bristles used to massage the user's gums, and can massage the user's gums, the inside of the cheek, or the tongue by transmitting the light irradiated from the light source. In addition, the massage bristles (142) can be manufactured as a bundle of optical fibers in order to effectively transmit the light transmitted from the light source. In addition, since the optical fibers cannot have a diameter exceeding a specific value in order to effectively transmit light, the massage bristles (142) can be configured by forming a set with a bundle of optical fibers and inserting the set of optical fiber bundles into the capsule of the massage bristles (142). In addition, the toothbrush plate (140) on which the toothbrush bristles (141) and massage bristles (142) are formed can be detachably attached to the head portion (112) of the main body portion (110) and can be configured to be replaced depending on use.In addition, as illustrated in FIG. 10, the toothbrush bristles (141) may be configured such that the toothbrush bristles (141d) located at both ends in the longitudinal direction of the toothbrush bristles plate (140) are longer than the other toothbrush bristles (141a, 141b, 141c, 141e) so that light can be well irradiated to the molars. In addition, the toothbrush bristles (141a, 141b, 141c, 141e) may be configured in a rectangular shape depending on the arrangement of the light sources. The massage bristles (142) may be arranged at the vertices of an imaginary rectangle positioned around the periphery centered on the center of the oval-shaped toothbrush bristles plate (140) so as to massage the gums. In addition, the light source unit (122) may function to irradiate blue light to sterilize the user's oral cavity or to whiten teeth, and to irradiate red light to exert effects such as anti-inflammatory effects and collagen formation. In addition, the plurality of light sources of the first light source (122a) and the second light source (122b) of the light source unit (122) can be arranged alternately to function so that the intensity of light is improved through constructive interference of light.

[0010]

[0011] As described above, according to an embodiment of the present invention, a light irradiating sanitary device having a PCB directly assembled to a main body, includes a main body forming a housing exterior of a handle portion and a head portion, a PCB configured in a shape corresponding to the shape of the main body portion and disposed inside the main body portion, wherein a power button is formed in the handle portion area and a light source portion including a plurality of light sources that irradiate light through a waveguide is formed in the head portion area, a vibration motor disposed in an upper area of ​​the handle portion of the main body portion and attached to the PCB by soldering, and a toothbrush head plate having toothbrush bristles formed by at least one waveguide and positioned and fastened above the light source portion formed in the head portion area of ​​the PCB, wherein the PCB having the vibration motor attached thereto is configured to be directly assembled to an internal rib of the main body portion, thereby reducing noise using a PCB-attached vibration motor, and further improving the convenience of use due to the noise reduction effect and increased vibration stability through vibration stability, and further improving the convenience of use due to the structure in which the PCB is directly assembled to an internal rib of the main body portion, while configuring a structure in which multiple or divided parts are formed into a single-piece structure instead of an existing PCB, thereby reducing the number of parts. Not only is the cost competitiveness improved, but the assembly and assembly speed are also improved, and since it is assembled directly to the exterior, the durability can be further improved by minimizing the cause of failure by eliminating the connecting parts, and in particular, by configuring it so that the vibration motor is attached to the PCB and the PCB can be assembled in a structure in which it is in contact with the exterior of the main body of the main body, the number of parts that vibrate can be reduced, thereby reducing noise, and the manufacturing process can be simplified, and thereby cost reduction and productivity improvement can be achieved. The present invention described above can be variously modified or applied by a person skilled in the art to which the present invention belongs, and the scope of the technical idea according to the present invention should be defined by the following claims.

Claims

1. A light irradiation sanitary device (100) having a PCB (Printed Circuit Board) that is assembled directly into the main body. A main body (110) forming the housing exterior of the handle (111) and head (112); A PCB (120) configured in a shape corresponding to the shape of the main body (110) and placed inside the main body (110), wherein a power button (121) is formed in the handle area and a light source area (122) including a plurality of light sources that irradiate light through a waveguide is formed in the head area; A vibration motor (130) placed in the upper area of ​​the handle portion (111) of the main body portion (110) and attached to the PCB (120) through soldering; and A toothbrush plate (140) is positioned and fastened on the upper part of a light source part (122) formed in the head area of ​​the PCB (120), and includes a toothbrush bristles (141) formed with at least one waveguide. A light irradiation sanitary device having a PCB directly assembled to a main body, characterized in that the PCB (120) to which the vibration motor (130) is attached is configured in a structure in which the PCB (120) is directly assembled to an inner rib of the main body (110).

2. In the first paragraph, the PCB (120) is configured as a one-piece structure that can be placed inside in a shape corresponding to the shape of the main body (110), and the PCB (120) is directly assembled to the internal rib of the main body (110), so that the assembly efficiency and assembly speed are improved, and durability is improved by eliminating connecting parts due to being directly assembled to the main body, a light irradiation sanitary device having a PCB that is directly assembled to the main body.

3. In the first paragraph, the PCB (120) A light irradiation sanitary device having a PCB directly assembled to a main body, characterized in that it further comprises a battery connector (123) formed by being arranged inside a handle portion (111) of the main body portion (110).

4. A light irradiation sanitary device having a PCB directly assembled to a main body, characterized in that in any one of the first to third clauses, the light source unit (122) of the PCB (120) includes a first light source (122a) that irradiates light of a short wavelength and a second light source (122b) that irradiates light of a long wavelength, and the plurality of light sources are configured with a structure of a set including at least one first light source (122a) that irradiates light of a short wavelength and a set including at least one second light source (122b) that irradiates light of a long wavelength.

5. In the fourth paragraph, the light source unit (122) A light irradiation sanitary device having a PCB directly assembled to a main body, characterized in that it is configured with a structure in which a plurality of light sources are repeatedly arranged.

6. In the fourth paragraph, the light source unit (122) includes a first light source (122a) that irradiates short-wavelength light and a second light source (122b) that irradiates long-wavelength light, wherein the short-wavelength light irradiated from the first light source (122a) is blue light and the long-wavelength light irradiated from the second light source (122b) is red light, and is a light irradiating sanitary device having a PCB that is directly assembled to the main body.

7. In the fourth paragraph, the light source unit (122) is a light irradiation sanitary device having a PCB directly assembled to the main body, characterized in that the first light source (122a) and the second light source (122b) are composed of LEDs (Light-Emitting-Diodes) or laser diodes.

8. A light irradiation hygiene device having a PCB directly assembled to a main body, characterized in that in the fourth paragraph, the toothbrush plate (140) has toothbrush bristles (141) formed of at least one waveguide, and the toothbrush bristles (141) formed of the waveguide are formed of an optical fiber.

Citation Information

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