Luminous brush head and electric toothbrush with same

Abstract

The utility model discloses a light-emitting brush head and an electric toothbrush with the same. The light-emitting brush head comprises a brush cylinder and a light-emitting component, the brush plate is provided with one end of the brush cylinder, and the brush plate is provided with a containing groove; the bristle planting plate is arranged in the containing groove, a plurality of bristle planting holes are formed in the bristle planting plate, a light guide structure is arranged on the end face, deviating from an inlet of the bristle planting holes, of the bristle planting plate, at least one bristle planting hole is correspondingly provided with the light guide structure, and the light guide structure is constructed to have a light gathering effect so as to guide light to the corresponding bristle planting hole; the multiple clusters of bristles are arranged in the multiple bristle planting holes respectively, and at least the bristles in the bristle planting holes with the light guide structures are light-transmitting pieces; the light-emitting part is arranged on one side of the bristle planting plate so as to emit light towards the bristle planting plate. According to the luminous brush head provided by the embodiment of the utility model, the light guide structure is arranged and is used for guiding the light to the bristles in the bristle planting holes, so that the loss of the light in the transmission process is reduced, and the energy of the light transmitted to the bristles is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning equipment, in particular to a luminous brush head and an electric toothbrush with the luminous brush head. Background Art

[0002] With the improvement of technology and living standards, more and more users are beginning to pay attention to oral hygiene. The demand for a toothbrush that can whiten teeth and deeply clean teeth is increasing. Based on this, in the related technology, a light-emitting part is provided on the electric toothbrush, and the light emitted by the light-emitting part can achieve the functions of whitening teeth and photo-care for gums.

[0003] The light emitted from the light-emitting part is transmitted to the oral cavity through the brush plate or bristles. Since the light-emitting part has a large light output angle, when the light is randomly transmitted from the brush plate or bristles, more light scattering occurs during the propagation process, resulting in less energy of light acting on the teeth and gums. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a light-emitting brush head, which is provided with a light-guiding structure to guide light to the bristles in the implanted hair holes, thereby reducing the loss of light during the propagation process and increasing the energy of the light propagated to the bristles.

[0005] The utility model also provides an electric toothbrush with the luminous brush head.

[0006] According to the first aspect of the utility model, the light-emitting brush head includes: a brush barrel; a brush plate, the brush plate is provided with one end of the brush barrel and the brush plate is provided with a receiving groove; a hair-planting plate, the hair-planting plate is provided in the receiving groove, the hair-planting plate is provided with a plurality of hair-planting holes, the end face of the hair-planting plate away from the entrance of the hair-planting holes is provided with a light-guiding structure, at least one of the hair-planting holes is provided with the light-guiding structure, the light-guiding structure is constructed to have a focusing effect to guide light to the corresponding hair-planting holes; a plurality of clusters of bristles, the plurality of clusters of bristles are respectively provided in the plurality of the hair-planting holes, at least the bristles in the hair-planting holes provided with the light-guiding structure are light-transmitting parts; a light-emitting part, the light-emitting part is provided on one side of the hair-planting plate to emit light toward the hair-planting plate.

[0007] The light-emitting brush head according to the embodiment of the utility model is provided with a light-guiding structure, which guides light to the bristles in the hair-planting holes. This makes it easy to reduce the loss of light during the propagation process and increase the energy of the light propagated to the bristles.

[0008] In addition, the light-emitting brush head according to the above embodiment of the utility model may also have the following additional technical features:

[0009] According to some embodiments of the present invention, the light-guiding structure includes a spherical protrusion protruding toward the light-emitting element.

[0010] According to some optional embodiments of the present invention, the end surface of the light-guiding structure facing the light-emitting element is a first end surface, and the first end surface excluding the portion of the spherical protrusion includes at least one plane.

[0011] According to some optional embodiments of the present invention, the light-guiding structure and the hair-implanting plate are integrally processed and formed parts.

[0012] According to some embodiments of the present invention, the bristles are formed into a "U" shape, and the bent portion of the bristles is arranged opposite to the light guide structure.

[0013] According to some embodiments of the present invention, a portion of the bristles are light-transmitting parts and another portion of the bristles are light-impermeable parts.

[0014] According to some optional embodiments of the present invention, the opaque bristles are located at the periphery of the translucent bristles and are arranged around the translucent bristles.

[0015] According to some embodiments of the present invention, the light-emitting component includes a plurality of light-emitting lamps, and there are a plurality of light-guiding structures, and the plurality of light-guiding structures and the plurality of light-emitting lamps are arranged in a one-to-one correspondence.

[0016] According to some optional embodiments of the utility model, a circuit board is provided in the brush barrel, the light-emitting component is electrically connected to the circuit board, the circuit board is provided with a first electrical connector, and the first electrical connector is suitable for detachable electrical connection with the second electrical connector of the handle of the electric toothbrush.

[0017] According to some specific embodiments of the present utility model, the light-emitting brush head also includes a plug-in, which is fixed to the brush barrel, and the first electrical connector is a contact point provided on the circuit board, and the part of the circuit board provided with the contact point is inserted into the plug-in so that the contact point is exposed in the insertion channel of the plug-in, and the contact point is suitable for contacting and cooperating with the second electrical connector of the brush handle.

[0018] According to some specific embodiments of the present utility model, the light-emitting brush head also includes a plug-in, which is fixed in the brush barrel, and the first electrical connector is a metal spring fixed to the plug-in, and the first electrical connector is respectively electrically connected to the circuit board and the second electrical connector.

[0019] According to some specific embodiments of the utility model, a guide protrusion is provided in the brush barrel, a guide groove is provided in the guide protrusion, and the circuit board is inserted in the guide groove.

[0020] According to some optional embodiments of the present invention, an end of the plug-in unit abuts against the guide protrusion.

[0021] According to some embodiments of the present invention, a sealant is provided between the hair implanting plate and the bottom wall of the receiving groove.

[0022] According to an embodiment of the second aspect of the present invention, an electric toothbrush is provided, and the electric toothbrush comprises the luminous brush head according to the embodiment of the first aspect of the present invention.

[0023] According to the electric toothbrush of the embodiment of the utility model, by utilizing the luminous brush head described in the embodiment of the first aspect of the utility model, a light-guiding structure is provided, and light is guided to the bristles in the hair implantation holes by utilizing the light-guiding structure, thereby reducing the loss of light during the propagation process and increasing the energy of the light propagated to the bristles.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a schematic structural diagram of a light-emitting brush head according to an embodiment of the utility model.

[0027] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.

[0028] Figure 3 yes Figure 2 A magnified view of the structure at point B.

[0029] Figure 4 It is a schematic structural diagram of a light-emitting brush head according to an embodiment of the utility model.

[0030] Figure 5 It is a cross-sectional view of a brush barrel, a brush plate and a hair planting plate according to an embodiment of the utility model.

[0031] Figure 6 It is a structural schematic diagram of a brush cylinder and a brush plate according to an embodiment of the utility model.

[0032] Figure 7 It is a structural exploded view of a brush barrel, a brush plate and a plug-in according to an embodiment of the utility model.

[0033] Figure 8 It is a cross-sectional view of a light-emitting brush head according to an embodiment of the utility model.

[0034] Fig. 9 It is a structural exploded view of the light-emitting brush head and the connecting shaft according to the first embodiment of the utility model.

[0035] Fig.10 It is a partial schematic diagram of a structural cross-sectional view of a light-emitting brush head and a connecting shaft according to the first embodiment of the utility model.

[0036] Fig.11 It is a schematic structural diagram of a connecting shaft according to the first embodiment of the utility model.

[0037] Fig.12 It is a structural exploded view of the light-emitting brush head and the connecting shaft according to the second embodiment of the utility model.

[0038] Fig.13 It is a partial schematic diagram of a structural cross-sectional view of a light-emitting brush head and a connecting shaft according to a second embodiment of the utility model.

[0039] Fig.14 It is a structural schematic diagram of a connecting shaft according to the second embodiment of the utility model.

[0040] Fig.15 It is a structural schematic diagram of a joint and a metal spring according to the utility model.

[0041] Fig.16 It is a structural schematic diagram of an electric toothbrush according to the utility model.

[0042] Reference numerals: electric toothbrush 1000,

[0043] The light-emitting brush head 1, the brush barrel 11, the brush plate 12, the receiving groove 121, the hair-planting plate 13, the hair-planting hole 131, the light-guiding structure 14, the spherical protrusion 141, the first end surface 142, the guide protrusion 15, the guide groove 16,

[0044] Bristles 21, bending portion 211, plug 22, insertion channel 221, joint 23,

[0045] Circuit board 31, light emitting element 32, light emitting lamp 321, first electrical connection element 33, metal spring 341,

[0046] The brush handle 5 , the connecting shaft 51 , and the second electrical connecting member 52 . DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] The following describes a light-emitting brush head 1 according to an embodiment of the present utility model with reference to the accompanying drawings.

[0049] like Figure 1-Figure 16 As shown, the light-emitting brush head 1 according to the embodiment of the utility model includes a brush barrel 11 , a brush plate 12 , a hair-planting plate 13 , a plurality of clusters of bristles 21 and a light-emitting member 32 .

[0050] The brush plate 12 is provided with one end of the brush tube 11 and the brush plate 12 is provided with a receiving groove 121, the hair implanting plate 13 is provided in the receiving groove 121, the hair implanting plate 13 is provided with a plurality of hair implanting holes 131, and a plurality of clusters of bristles 21 are respectively provided in the plurality of hair implanting holes 131, so that the bristles 21 are arranged on the hair implanting plate 13, and then when the user uses the luminous brush head 1, the plurality of clusters of bristles 21 are used to clean the teeth.

[0051] The light-emitting component 32 is arranged on one side of the hair-implanting plate 13 to emit light toward the hair-implanting plate 13. The end face of the hair-implanting plate 13 that is away from the entrance of the hair-implanting hole 131 is provided with a light-guiding structure 14. At least one hair-implanting hole 131 is provided with a light-guiding structure 14. The bristles 21 in at least the hair-implanting hole 131 provided with the light-guiding structure 14 are light-transmitting components, so that the light emitted by the light-emitting component 32 can pass through the bristles 21 and enter the oral cavity. Specifically, the light emitted by the light-emitting component 32 can be irradiated to the bristles 21 in the hair-implanting hole 131 through the light-guiding structure 14. When the user uses the bristles 21 to clean the oral cavity, the light emitted by the light-emitting component 32 reaches the inside of the oral cavity. Then, when the user uses the light-emitting brush head 1, the light emitted by the light-emitting component 32 can whiten the teeth, provide lighting for the user to observe the inside of the oral cavity, and meet the user's needs for deep cleaning of the teeth.

[0052] Among them, the light-guiding structure 14 is constructed to have a focusing effect to guide the light to the corresponding hair-implanting holes 131, and then guide the light to the bristles 21 in the hair-implanting holes 131. This is convenient to reduce the loss of light during the propagation process, increase the energy of the light propagated to the bristles 21, and then facilitate to improve the working effect of the light-emitting component 32, so that the light can better perform functions such as cleaning, illumination, and whitening on the inside of the oral cavity.

[0053] Therefore, the light-emitting brush head 1 according to the embodiment of the utility model is provided with a light-guiding structure 14, and uses the light-guiding structure 14 to guide light to the bristles 21 in the hair implantation holes 131, thereby reducing the loss of light during the propagation process and increasing the energy of the light propagated to the bristles 21.

[0054] The following describes a light-emitting brush head 1 according to a specific embodiment of the utility model with reference to the accompanying drawings.

[0055] In some specific embodiments of the present invention, Figure 1-Figure 16 As shown, the luminous brush head 1 includes a brush barrel 11 , a brush plate 12 , a bristle implantation plate 13 , a plurality of clusters of bristles 21 and a luminous member 32 .

[0056] In some embodiments of the present invention, the light-guiding structure 14 includes a spherical protrusion 141, which protrudes toward the light-emitting component 32 to form a convex lens on one side of the light-emitting component 32, so that the light emitted by the light-emitting component 32 can be concentrated at the hair implantation hole 131 and then at the bristles 21.

[0057] Specifically, for the parallel light emitted by the light-emitting component 32, the light-guiding structure 14 can gather multiple beams of parallel light within a certain range, that is, gather them at the hair-implanting hole 131, so that the light can irradiate the bristles 21 in the hair-implanting hole 131, so as to increase the energy of the light transmitted to the bristles 21, thereby facilitating the improvement of the working effect of the light-emitting component 32, so that the light can better perform functions such as cleaning, illumination, and whitening on the inside of the oral cavity.

[0058] In addition, the light guide structure 14 includes a spherical protrusion 141 protruding toward the light emitting element 32 , so as to shorten the distance between the light guide structure 14 and the light emitting element 32 and enhance the light gathering effect of the light guide structure 14 .

[0059] In some optional embodiments of the present invention, the end face of the light-guiding structure 14 facing the light-emitting component 32 is a first end face 142. The first end face 142 includes at least one plane excluding the portion of the spherical protrusion 141. If the first end face 142 is a spherical surface as a whole, since the propagation angle of the light irradiating the periphery of the light-emitting component 32 is relatively large, the light with a large propagation angle is easily formed into divergent light after being refracted by the spherical surface, resulting in less light gathered at the hair implantation hole 131. The first end face 142 includes at least one plane excluding the portion of the spherical protrusion 141 to reduce the divergent light, thereby facilitating the increase of the light energy irradiated to the hair implantation hole 131.

[0060] In some embodiments, Figure 2 As shown, the spherical protrusion 141 is located at the center of the plane and protrudes toward the direction close to the light emitting member 32. The light emitted by the light emitting member 32 has a smaller propagation angle in the center part and a larger propagation angle in the peripheral part. The light inside the light emitting member 32 is irradiated toward the bristles 21 through the spherical protrusion 141. The spherical protrusion 141 has a gathering effect on the light, so as to gather the light within a certain range, so that the light can be concentrated and irradiated to the bristles 21. The light outside the light emitting member 32 continues to propagate after being refracted by the plane.

[0061] Among them, in other embodiments, if it is necessary to reduce the scattering of light around the light-emitting component 32, the first end surface 142 can include an arc-shaped surface except for the portion of the spherical protrusion 141. The curvature radius of the arc-shaped surface is different from the curvature radius of the spherical protrusion 141, which will cause the manufacturing cost of the light-guiding structure 14 to be higher and occupy a larger space. Therefore, at least a portion of the first end surface 142 is a plane, so as to reduce the production cost while reducing the divergence of light and reduce the occupied space of the light-guiding structure 14.

[0062] It should be explained here that the propagation angle is the propagation direction of the light compared to the axis of the implantation hole 131. For example, the axis of the implantation hole 131 extends along the front-to-back direction, and the propagation angle of the light is the angle between the propagation direction of the light and the front-to-back direction.

[0063] In some optional embodiments of the present invention, Figure 2 As shown, the light guide structure 14 and the hair implantation plate 13 are integrally processed and molded parts, so that the structures of the light guide structure 14 and the hair implantation plate 13 are simple, which is convenient for reducing the installation steps and reducing the difficulty of assembling the light-emitting brush head 1.

[0064] In some embodiments of the present invention, Figure 8 As shown, in the embodiment, the bristles 21 are formed into a "U" shape, and the bent portion 211 of the bristles 21 is arranged opposite to the light-guiding structure 14 to form a convex lens at the bent portion 211 of the bristles 21, and then the bent portion 211 of the bristles 21 is used to focus the light again, so that the light emitted by the light-emitting component 32 can be gathered at a designated area of ​​the bristles 21 after passing through the light-guiding structure 14 and the bent portion 211 of the bristles 21, and then when the user uses the bristles 21 to clean the oral cavity, the light emitted by the light-emitting component 32 reaches the inside of the oral cavity, and then when the user uses the light-emitting brush head 1, the light emitted by the light-emitting component 32 can whiten the teeth, provide lighting for the user to observe the inside of the oral cavity, and meet the user's needs for deep cleaning of the teeth.

[0065] Specifically, the light emitted by the light emitting member 32 is concentrated when passing through the light guide structure 14 , and is concentrated again when passing through the bending portion 211 of the bristle 21 , so that the light emitted by the light emitting member 32 is concentrated at a designated area of ​​the bristle 21 .

[0066] In some embodiments of the utility model, a part of the bristles 21 are light-transmitting parts and the other part of the bristles 21 are opaque parts. The light emitted by the light-emitting part 32 will only act on the inside of the user's mouth through the light-transmitting bristles 21. By setting the light-transmitting bristles 21 at a specified position to direct the light to the specified area, the targeted effect of the light-emitting brush head 1 is achieved.

[0067] In some optional embodiments of the present invention, the opaque bristles 21 are located on the periphery of the translucent bristles 21 and are arranged around the translucent bristles 21. The opaque bristles 21 can gather light toward the translucent brush head, so as to gather the light at the translucent bristles 21, thereby increasing the energy of the light at the translucent bristles 21, thereby facilitating improving the effect of the light-emitting component 32.

[0068] In some embodiments, the opaque bristles 21 are fading brush wires, and the fading of the fading brush wires can be used to determine whether the luminous brush head 1 needs to be replaced. In other embodiments, the opaque bristles 21 can be bamboo charcoal brush wires, which can achieve the effect of refreshing breath. In addition, bamboo charcoal brush wires have a strong cleaning effect and have certain antibacterial and moisture-proof effects. In some other embodiments, the opaque bristles 21 can be component-containing brush wires, such as carbon elements, so that the bristles 21 have adsorption capacity, and can effectively absorb dental plaque, tea stains, smoke stains, etc. inside and outside the teeth, so as to better clean the teeth.

[0069] In some embodiments of the present invention, Figure 3 As shown, the light-emitting component 32 includes a plurality of light-emitting lamps 321, and there are a plurality of light-guiding structures 14. The plurality of light-guiding structures 14 and the plurality of light-emitting lamps 321 are arranged in a one-to-one correspondence. The light emitted by the light-emitting lamps 321 propagates toward the corresponding light-guiding structure 14, so as to improve the light-guiding efficiency of the light-guiding part, and thereby enable the light-guiding structure 14 to gather the light emitted by the light-emitting component 32 at the hair implantation hole 131, so that the light can reach the bristles 21 and act on the oral cavity through the bristles 21.

[0070] In some embodiments, the light emitting lamp 321 can emit a blue light beam with a wavelength of 480-520mm. The blue light can destroy the DNA and RNA structures of bacteria and viruses, thereby achieving a sterilization effect. At the same time, the blue light can also whiten teeth. When the user needs to whiten their teeth, a special whitening agent composed mainly of hydrogen peroxide and silica can be applied to the bristles 21. At this time, when the blue light is irradiated on the teeth and the whitening agent, an oxidation-reduction reaction will occur on the teeth, thereby achieving the effect of whitening the teeth.

[0071] The light emitted by the light-emitting element 32 can also be used for lighting, catalyzing the ingredients of toothpaste, reducing inflammation in the oral cavity, promoting blood circulation, etc., and no excessive restrictions are made here.

[0072] In some optional embodiments of the present invention, Figure 2As shown, a circuit board 31 is provided in the brush barrel 11, and the light-emitting component 32 is electrically connected to the circuit board 31. The circuit board 31 is provided with a first electrical connector 33. The first electrical connector 33 is suitable for detachable electrical connection with the second electrical connector 52 of the brush handle 5 of the electric toothbrush 1000, so as to realize the detachable cooperation between the light-emitting brush head 1 and the brush handle 5, thereby facilitating regular replacement of the light-emitting brush head 1 or regular cleaning of the brush head.

[0073] Specifically, when the user needs to remove the light-emitting brush head 1 from the brush handle 5, the first electrical connector 33 is separated from the second electrical connector 52, so that the brush barrel 11 together with the light-emitting component 32 and the circuit board 31 can be removed from the brush handle 5. At this time, the light-emitting component 32 and the bristles 21 always remain relatively still, and the light-emitting component 32 and the first electrical connector 33 always remain electrically connected, so that when installing or removing the light-emitting brush head 1, the light-emitting component 32 can always take effect at the corresponding position of the bristles 21, so that the light-emitting component 32 and the first electrical connector 33 always maintain a stable electrical connection.

[0074] Among them, multiple light-emitting components 32 are electrically connected to the circuit board 31 to integrate the multiple light-emitting components 32 into the circuit board 31. The light-emitting components 32 in the related art are arranged at the light-emitting brush head 1. There is a certain distance between the light-emitting components 32 and the brush handle 5. If each light-emitting component 32 is electrically connected to the brush handle 5 one by one, due to the long distance between the light-emitting component 32 and the brush handle 5, the power connection is more complicated. In addition, when using wires to realize the electrical connection between the light-emitting components 32 and the brush handle 5, due to the long length and large number of wires, too much space in the electric toothbrush 1000 will be occupied.

[0075] In this solution, a circuit board 31 is set up so that the circuit board 31 and the brush handle 5 are electrically connected through the first electrical connector 33 and the second electrical connector 52. Since the circuit board 31 and the light-emitting component 32 are both set in the light-emitting brush head 1, the distance between the light-emitting component 32 and the circuit board 31 is short, so that the light-emitting component 32 and the circuit board 31 are electrically connected. The connection method is relatively simple, which makes it easy to integrate multiple light-emitting components 32 on the circuit board 31, and to simplify the electrical connection structure for electrically connecting multiple light-emitting components 32, thereby reducing the space occupied by the electrical connection structure for connecting the light-emitting components 32 in the electric toothbrush 1000.

[0076] In addition, the plurality of light-emitting components 32 are electrically connected to the circuit board 31 so that the plurality of light-emitting components 32 can be integrated together using the circuit board 31. Thus, when the plurality of light-emitting components 32 are installed into the light-emitting brush head 1, there is no need to install the light-emitting components 32 into the light-emitting brush head 1 one by one. The plurality of light-emitting components 32 and the circuit board 31 can be installed into the light-emitting brush head 1 together, thereby simplifying the installation steps and reducing the difficulty of installation.

[0077] In some embodiments, the brush handle 5 includes a connecting shaft 51, and the second electrical connector 52 is disposed on the connecting shaft 51. The connecting shaft 51 and the light-emitting brush head 1 are detachably matched. When the light-emitting brush head 1 and the connecting shaft 51 are matched, the connecting shaft 51 can drive the light-emitting brush head 1 to vibrate, so that the light-emitting brush head 1 can clean the teeth. At this time, the second electrical connector 52 is electrically connected to the first electrical connector 33 to supply power to the light-emitting component 32, so that the light-emitting component 32 can start working. When the light-emitting brush head 1 is disengaged from the connecting shaft 51, the first electrical connector 33 is disengaged from the second electrical connector 52.

[0078] In some specific embodiments of the present invention, Figure 7 , Figure 8 As shown, the light-emitting brush head 1 also includes a plug-in 22, which is fixed to the brush barrel 11. The first electrical connector 33 is a contact point provided on the circuit board 31. The portion of the circuit board 31 provided with the contact point is inserted into the plug-in 22 so that the contact point is exposed in the insertion channel 221 of the plug-in 22. The contact point is suitable for contacting and cooperating with the second electrical connector 52 of the brush handle 5 to realize the electrical connection between the circuit board 31 and the brush handle 5, so that the brush handle 5 can supply power to the circuit board 31. Since the circuit board 31 is electrically connected to the light-emitting part 32, the circuit board 31 can guide electricity to the light-emitting part 32 and can transmit information to the light-emitting part 32, so that the light-emitting part 32 can work normally and the light-emitting part 32 can take effect at the corresponding position of the bristles 21.

[0079] The structure of the first electrical connector 33 being a contact point disposed on the circuit board 31 is relatively simple, which is convenient for reducing the processing difficulty and improving the stability of the electrical connection between the circuit board 31 and the first electrical connector 33 .

[0080] In some specific embodiments of the present invention, Fig.12 , Fig.13 As shown, the light-emitting brush head 1 also includes a plug-in 22, which is fixed to the brush barrel 11. The first electrical connector 33 is a metal spring 341 fixed to the plug-in 22. The first electrical connector 33 is electrically connected to the circuit board 31 and the second electrical connector 52 respectively to achieve electrical connection between the circuit board 31 and the brush handle 5, so that the brush handle 5 can supply power to the circuit board 31. Since the circuit board 31 is electrically connected to the light-emitting component 32, the circuit board 31 can guide electricity to the light-emitting component 32 and can transmit information to the light-emitting component 32, so that the light-emitting component 32 can work normally and the light-emitting component 32 can take effect at the corresponding position of the bristles 21.

[0081] In some embodiments, Figure 12-Figure 15As shown, the light-emitting brush head 1 also includes a connector 23, and a metal spring 341 is fixed to the connector 23. The connector 23 is used to fix the position of the metal spring 341. The connector 23 is inserted into the plug-in 22 so that the metal spring 341 is located in the plug-in 22. By fixing the position of the plug-in 22, the position of the first electrical connector 33 can be fixed, so that the metal spring 341 will not move when subjected to a force but can undergo elastic deformation, so that the metal spring 341 can be smoothly electrically connected to the second electrical connector 52.

[0082] In some optional embodiments of the present invention, Figure 5 As shown, a guide protrusion 15 is provided in the brush barrel 11, and a guide groove 16 is provided in the guide protrusion 15. The circuit board 31 is inserted in the guide groove 16, so that the position of the circuit board 31 is fixed by the guide groove 16, thereby preventing the circuit board 31 from shaking when the electric toothbrush 1000 is moved or used, thereby preventing the electrical connection between the circuit board 31 and the first electrical connector 33 and the light-emitting component 32 from being affected.

[0083] In some optional embodiments of the present invention, Fig.10 As shown, the end of the plug 22 stops at the guide protrusion 15 to limit the distance of the plug 22 inserted into the brush tube 11, thereby preventing the plug 22 from being inserted too far, causing the distance between the first electrical connector 33 and the second electrical connector 52 to be too far, thereby affecting the electrical connection between the first electrical connector 33 and the second electrical connector 52.

[0084] In some optional embodiments of the utility model, a sealant is provided between the bristle implanting plate 13 and the bottom wall of the receiving groove 121 to seal the gap between the bristle implanting plate 13 and the receiving groove 121 to avoid that when the bristles 21 are in use and there is water on the bristles 21, the water will flow from the gap between the bristle implanting plate 13 and the bottom wall of the receiving groove 121 to the light-emitting component 32, and the water on the bristles 21 will flow from the gap between the bottom wall of the receiving groove 121 and the bristle implanting plate 13 to the light-emitting component 32, thereby avoiding damage to the light-emitting component 32.

[0085] In some embodiments of the present invention, the hair implantation hole 131 can be a through hole or a blind hole, and no further restrictions are made here.

[0086] In some embodiments, the bristles 21 are fixed to the hair transplanting plate 13 by copper-free hair transplanting, the hair transplanting holes 131 are through holes, and the bristle clusters 21 pass through the hair transplanting holes 131 and are thermally welded to the hair transplanting plate 13 to fix the bristles 21 on the hair transplanting plate 13.

[0087] In other embodiments, the bristles 21 are fixed to the implanting plate 13 by copper implanting, the implanting hole 131 is a blind hole, the middle of the bristles 21 is pressed to the bottom of the implanting hole 131 through a copper sheet, and the bristles 21 are arranged in an approximately U shape.

[0088] In some embodiments of the present invention, the bristles 21 are formed into a "U" shape, and the bristles 21 include a bent portion 211 and a straight portion. Light is coupled into the bristles 21 at the bent portion 211, and the light propagates from the bent portion 211 to the straight portion. The light needs to be refracted and reflected at a large angle. A large part of the light does not meet the total reflection condition in this process and leaks out, resulting in a reduction in light energy at the bristles 21. By providing a light-guiding structure 14 on the end face of the bristle-implanting plate 13 that is away from the entrance of the bristle-implanting hole 131, the light passes through the light-guiding structure 14 and then reaches the bent portion 21. The light-guiding structure 14 can change the propagation angle of the light, thereby reducing the light that does not meet the total reflection condition and increasing the light energy propagated to the bristles 21, thereby increasing the light energy at the bristles 21.

[0089] A comparative example is set here to compare with the present embodiment. The comparative example is not provided with the light guiding structure 14. The thickness of the bristles 21 is 0.15mm, the spacing between the bristles 21 is 0.01mm, the light-emitting part 32 includes four light-emitting lamps 321, the power of each light-guiding part is 1W, and the total power is 4W. The hair-implanting plate 13 includes four hair-implanting holes 131, and the size of the hair-implanting holes 131 is 2*2.3mm. The hair-implanting plate 13 is made of PC material, and the refractive index of the hair-implanting plate 13 is 1.57. The bristles 21 are made of nylon material, and the refractive index of the bristles 21 is between 1.54-1.64, and the refractive index of the bristles 21 is 1.6.

[0090] In the environment of ordinary air, in the comparative example without the light guide structure 14, the energy at the bristles 21 is detected, and the light output power of a single cluster of bristles 21 is 0.109W, the total power of four clusters of bristles 21 is 0.44W, and the light output efficiency at the bristles 21 is 0.44 / 4=11%. In the embodiment with the light guide structure 14, the energy at the bristles 21 is detected, and the light output power of a single cluster of bristles 21 is 0.150W, the total power of four clusters of bristles 21 is 0.6W, and the light output efficiency at the bristles 21 is 0.6 / 4=15%.

[0091] By comparison, it can be seen that by adding the light guide structure 14 and using the light guide structure 14 to collimate and focus the light, the total light output power of the bristles 21 is increased from 0.44W to 0.6W, an increase of about 36%, and the overall light output efficiency is increased from 11% to 15%. In addition, when the light guide structure 14 is added, the uniformity of light distribution will also be improved.

[0092] In a water environment, in an embodiment with a light-guiding structure 14 , the light output power of a single cluster of bristles 21 is 0.245 W, the total power of four clusters of bristles 21 is 0.98 W, and the light output efficiency at the bristles 21 is 0.98 / 4=24.5%.

[0093] Specifically, since the refractive index of water is 1.33, which is higher than the refractive index of air of 1, in the presence of water, it is equivalent to increasing the refractive index of the medium around the bending portion 211, so that when light is transmitted between different brushes, the divergence angle is reduced, which greatly reduces the loss of light at the bending portion 211 and reduces the divergence loss of light, thereby increasing the light power density and concentrating the light energy to the central area of ​​the bristles 21.

[0094] Among them, in the embodiment with the light-guiding structure 14 and in a water environment, the total light output power of the bristles 21 is increased from 0.6W to 0.98W, an increase of about 63%, and the overall light output efficiency is increased from 15% to 24.5%.

[0095] In some embodiments of the utility model, the bristles 21 are straight bristles 21, the thickness of the bristles 21 is 0.15mm, the spacing between the bristles 21 is 0.01mm, the light-emitting part 32 includes four light-emitting lamps 321, the power of each light-guiding part is 1W, the total power is 4W, the hair-planting plate 13 includes four hair-planting holes 131, the size of the hair-planting holes 131 is 2*2.3mm, the hair-planting plate 13 is made of PC material, the refractive index of the hair-planting plate 13 is 1.57, the bristles 21 are made of nylon material, the refractive index of the bristles 21 is between 1.54-1.64, and the refractive index of the bristles 21 is 1.6.

[0096] The energy at the bristles 21 is detected. In the embodiment with the light guide structure 14, the light power of a single cluster of bristles 21 is 0.5W, the total power of four clusters of bristles 21 is 2W, and the light extraction efficiency at the bristles 21 is 2 / 4=50%. In addition, the light distribution of this embodiment is strong in the center and weak around. It can be properly uniformed and the light at a large angle can be concentrated, thereby further improving the utilization rate of the light power.

[0097] The electric toothbrush 1000 according to the embodiment of the present invention is described below. The electric toothbrush 1000 according to the embodiment of the present invention comprises the light emitting brush head 1 according to the above embodiment of the present invention.

[0098] According to the electric toothbrush 1000 of the embodiment of the utility model, by utilizing the luminous brush head 1 according to the above embodiment of the utility model, by setting a light-guiding structure 14, the light is guided to the bristles 21 in the hair implanting holes 131 by utilizing the light-guiding structure 14, thereby reducing the loss of light during the propagation process and increasing the energy of the light propagated to the bristles 21.

[0099] Other structures and operations of the electric toothbrush 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0100] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0101] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0102] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A luminous brush head, characterized in that: include: Brush cylinder; A brush plate, wherein the brush plate is provided with one end of the brush cylinder and the brush plate is provided with a receiving groove; A hair transplanting plate, the hair transplanting plate is arranged in the receiving groove, the hair transplanting plate is provided with a plurality of hair transplanting holes, the end surface of the hair transplanting plate away from the entrance of the hair transplanting hole is provided with a light guiding structure, at least one of the hair transplanting holes is provided with the light guiding structure, and the light guiding structure is configured to have a light focusing effect to guide light to the corresponding hair transplanting hole; A plurality of clusters of bristles, wherein the plurality of clusters of bristles are respectively arranged in a plurality of the bristle-planting holes, and the bristles in at least the bristle-planting hole provided with the light-guiding structure are light-transmitting parts; A light emitting member is arranged on one side of the hair implanting plate to emit light toward the hair implanting plate.

2. The light-emitting brush head according to claim 1, characterized in that: The light guide structure includes a spherical protrusion protruding toward the light emitting element.

3. The light-emitting brush head according to claim 2, characterized in that: The end surface of the light-guiding structure facing the light-emitting element is a first end surface, and the first end surface excluding the portion of the spherical protrusion includes at least one plane.

4. The light-emitting brush head according to claim 2, characterized in that: The light guide structure and the hair implantation plate are integrally processed and formed.

5. The light-emitting brush head according to claim 1, characterized in that: The bristles are formed into a "U" shape, and the bent portion of the bristles is arranged opposite to the light-guiding structure.

6. The light-emitting brush head according to claim 1, characterized in that: A portion of the bristles are light-transmitting and another portion of the bristles are light-impermeable.

7. The light-emitting brush head according to claim 6, characterized in that: The opaque bristles are located at the periphery of the translucent bristles and are arranged around the translucent bristles.

8. The light-emitting brush head according to claim 1, characterized in that: The light-emitting element comprises a plurality of light-emitting lamps, and the light-guiding structures are multiple, and the multiple light-guiding structures and the multiple light-emitting lamps are arranged in a one-to-one correspondence.

9. The light-emitting brush head according to claim 8, characterized in that: A circuit board is arranged in the brush barrel, the light emitting element is electrically connected to the circuit board, the circuit board is provided with a first electrical connector, and the first electrical connector is suitable for detachable electrical connection with a second electrical connector of a brush handle of the electric toothbrush.

10. The light-emitting brush head according to claim 9, characterized in that: It also includes a plug-in, which is fixed to the brush barrel. The first electrical connector is a contact point provided on the circuit board. The part of the circuit board provided with the contact point is inserted into the plug-in so that the contact point is exposed in the insertion channel of the plug-in. The contact point is suitable for contacting and cooperating with the second electrical connector of the brush handle.

11. The light-emitting brush head according to claim 9, characterized in that: It also includes a plug-in, which is fixed in the brush barrel. The first electrical connector is a metal spring fixed to the plug-in. The first electrical connector is electrically connected to the circuit board and the second electrical connector respectively.

12. The light-emitting brush head according to claim 10 or 11, characterized in that: A guide protrusion is arranged in the brush cylinder, a guide groove is arranged in the guide protrusion, and the circuit board is inserted in the guide groove.

13. The light-emitting brush head according to claim 12, characterized in that: The end of the plug-in unit stops at the guide protrusion.

14. The light-emitting brush head according to claim 1, characterized in that: A sealant is provided between the hair implanting plate and the bottom wall of the containing groove.

15. An electric toothbrush, characterized in that: Comprising a light emitting brush head according to any one of claims 1-14.

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