Wirelessly rechargeable electric toothbrush and storage device for it

Abstract

A wirelessly rechargeable electric toothbrush, including: a machine body (100) comprising a cleaning section (101) and a handle (110) connected to each other, wherein the cleaning section (101) is provided with a brush head (102), the handle (110) comprises an outer housing (111) and an inner housing (112), the outer housing (111) is fitted over the inner housing (112), the outer housing (111) is made of metal, one end of the inner housing (112) away from the cleaning section (101) is a closed end (114) which is tightly arranged, a charging component is arranged at the closed end (114) in the inner housing (112), the charging component comprises at least one magnetic block (116) and several stacked induction coils (115), and the at least one magnetic block (116) is located on radial circumferences of the induction coils (115).

Description

TECHNICAL AREA

[0001] The utility model relates to the technical field of electric toothbrushes, in particular a wirelessly rechargeable electric toothbrush and a storage device for it. BACKGROUND

[0002] With the steady improvement in living standards, electric toothbrushes are becoming increasingly popular and gradually a necessity. Electric toothbrushes come into contact with water during brushing, making water resistance crucial. Firstly, most current electric toothbrushes have wireless charging components attached to their undersides, often with sections connected or removable bottom covers. After prolonged use, the seal can easily weaken. Secondly, electric toothbrushes are exposed to moisture for extended periods; most current models use plastic casings, the surface of which is prone to water stains and difficult to clean, and these materials are subject to accelerated aging after prolonged use.Furthermore, the current wireless charging design has insufficient power due to the relatively small radial dimensions of electric toothbrushes, resulting in inadequate charging efficiency. SUMMARY

[0003] The utility model aims to solve at least one of the technical problems present in existing technology. To this end, the utility model proposes a wirelessly rechargeable electric toothbrush and a storage device for it, which can optimize sealing performance, improve charging efficiency, and simultaneously make an outer surface of a machine body easy to clean.

[0004] According to one embodiment of a first aspect of the utility model, a wirelessly rechargeable electric toothbrush comprises: a machine body comprising a cleaning section and a handle connected to each other, the cleaning section being provided with a brush head, the handle comprising an outer housing and an inner housing, the outer housing being fitted over the inner housing, the outer housing being made of metal, one end of the inner housing being a closed end away from the cleaning section being tightly arranged, a charging component being arranged in the closed end, the charging component comprising at least one magnetic block and several stacked induction coils, and the at least one magnetic block being located on radial circumferences of the induction coils.

[0005] According to one embodiment of the first aspect of the utility model, the wirelessly rechargeable electric toothbrush has at least the following advantageous effects. The electric toothbrush comprises a machine body; the machine body includes a cleaning section and a handle connected to each other, and the cleaning section is provided with a brush head. The handle comprises an outer casing and an inner casing; the outer casing is fitted over the inner casing. The outer casing is made of metal, which helps to make an outer surface of the handle easy to clean. One end of the inner casing, away from the cleaning section, is a tightly fitted closed end, and the absence of a removable mounting element can significantly improve the sealing effect and prevent water ingress due to aging or loosening of the seal.A charging component is arranged in the closed end, the charging component comprises at least one magnetic block and several stacked induction coils, the at least one magnetic block is located on radial circumferences of the induction coils, the at least one magnetic block is designed to fix the handle on a charging station during charging, and the stacked induction coils can increase the power transmission efficiency in a limited space, thereby improving the charging efficiency.

[0006] According to one embodiment of the first aspect of the utility model, a cover part is arranged at one end of the outer housing away from the cleaning section, which covers an outer end face of the closed end, and the cover part extends along a radial direction of the outer housing in the direction of an axis.

[0007] According to one embodiment of the first aspect of the utility model, a sealing element is arranged at one end of the inner housing near the cleaning section, and a sealing ring is arranged between the sealing element and an inner wall of the inner housing.

[0008] According to one embodiment of the first aspect of the utility model, a battery compartment and a motor are arranged in the inner housing, and the charging component is attached to one end of the battery compartment away from the motor.

[0009] According to one embodiment of the first aspect of the utility model, the at least one magnetic block comprises at least two magnetic blocks, and the at least two magnetic blocks are located on both sides of the induction coils in the radial direction.

[0010] According to one embodiment of the first aspect of the utility model, a button is arranged on one side of the inner housing, and a pull tab is arranged on the opposite side of the battery compartment from the button.

[0011] According to one embodiment of a second aspect of the utility model, a storage device includes the wirelessly rechargeable electric toothbrush described above and comprises: a charging station which is provided with a receiving cavity into which a handle can be inserted, wherein several stacked transmitting coils are arranged in the charging station, and the transmitting coils are able to generate an induction with the induction coils to enable energy transfer when the handle is inserted into the receiving cavity; a disinfection box comprising a top cover and a base, the top cover being provided with a disinfection assembly capable of disinfecting the brush head, the base having a receiving cavity capable of receiving the machine body, the transmitting coils arranged on a part in the base corresponding to the closed end to enable the loading of the machine body, and the handle being magnetically connected to the base; and a wall-mounted box which has a mounting slot for placing the machine body, wherein the handle is in magnetic contact with the mounting slot so that the machine body is fixed in the mounting slot.

[0012] According to one embodiment of the second aspect of the utility model, the storage device has the following advantageous effect. The device comprises a charging station, a disinfection box, and a wall-mounted box. The charging station is used for daily charging, the disinfection box is used for travel storage and can implement the disinfection function, and the wall-mounted box allows the handle to be attached to a bathroom wall, thus avoiding placing the device body in a location where water easily accumulates and reducing the accumulation of dirt on the handle's surface. The charging station is provided with a recess into which the handle can be inserted, and several stacked transmitting coils are provided in the charging station, which helps to improve energy transfer efficiency and thus charging efficiency.The disinfection box consists of a lid and a base. The lid features a disinfection unit that sanitizes the brush head, preventing bacterial growth during travel and improving the toothbrush's cleanability. The base has a recessed compartment for the brush head, and the charging coils are positioned on the base's end to facilitate charging. The handle magnetically attaches to the base for convenient charging while simultaneously performing the disinfection function. The wall-mounted box has a mounting slot for the brush head, and the handle magnetically attaches to this slot, securing the brush head for easy use.

[0013] According to one embodiment of the second aspect of the utility model, both the base and the wall-mounted box are each provided with a magnetic block, and when the handle is placed in the receiving cavity or mounting slot, the respective magnetic block is positioned according to the attracting block.

[0014] According to one embodiment of the second aspect of the utility model, the disinfection assembly is provided with a transmitter, the transmitter is positioned according to the brush head, and the transmitter can emit ultraviolet rays to achieve the disinfection function.

[0015] According to one embodiment of the second aspect of the utility model, at least two magnetic blocks are provided on both radial sides of the transmitting coils, and the induction coils in the handle maintain a stable power transmission with the transmitting coils through the at least two magnetic blocks.

[0016] Additional aspects and advantages of the utility model are partly specified in the following description, partly evident from the following description, or learned through the use of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below with reference to the accompanying drawings and embodiments, in which: Fig. 1 an isometric view of a wirelessly rechargeable electric toothbrush according to an embodiment of a first aspect of the utility model; Fig. 2 a cross-sectional view of a wirelessly rechargeable electric toothbrush according to an embodiment of a first aspect of the utility model; Fig. 3 a partial view of a loading component according to an embodiment of a first aspect of the utility model; Fig. 4 a partial view of section A in Fig. is; Fig. 5 a cross-sectional view of a disinfection box and a machine body according to an embodiment of a second aspect of the utility model; Fig. 6 is a partial view of a charging station according to an embodiment of a second aspect of the utility model; Fig. 7 is an arrangement view of a transmitting coil in a charging station according to an embodiment of a second aspect of the utility model; and Fig. 8 is a cross-sectional view of a wall-mounted storage box according to an embodiment of a second aspect of the utility model. Reference symbol:

[0018] Machine body 100; Cleaning section 101; Brush head 102; Battery compartment 103; Motor 104; Button 105; Pulling block 106; Battery cell 107; Connecting rod 108; Handle 110; Outer housing 111; Inner housing 112; Cover part 113; Closed end 114; Induction coil 115; Magnet block 116; Sealing element 117; Sealing ring 118; Charging station 120; recording cavity 121; transmitting coil 122; wall-mounted box 123; mounting slot 124; magnetic block 125; and Disinfection box 130; top cover 131; base 132; receiving cavity 133; and transmitter 134. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below. Examples of the embodiments are illustrated in the accompanying drawings, and throughout the text, the same or similar numerals denote the same or similar elements or elements with the same or similar function. The embodiments described with reference to the accompanying drawings are exemplary and serve only to explain the utility model; they must not be understood as limiting the utility model.

[0020] In the description of the utility model, it is to be understood that the directional or positional relationships indicated by the terms "top," "bottom," "front," "back," "left," and "right," etc., refer to the directional or positional relationships shown in the accompanying drawings, solely for the purpose of describing the utility model and simplifying the description, and do not indicate or imply that the device or element in question necessarily has a specific orientation and must be designed and operated in that specific orientation. Therefore, these terms should not be understood as limitations of the utility model.

[0021] In the description of the utility model, "several" means one or more, "a plurality" means more than two, "greater than," "less than," "exceeding," etc., are to be understood as excluding the specified number, and "above," "below," "within," etc., are to be understood as including the specified number. The described "first" and "second" features serve only to distinguish technical characteristics and are not to be understood as an indication of the relative importance or an implicit statement of the quantity of the technical features shown, nor as an implicit statement of the ranking of the technical features shown.

[0022] Unless otherwise specifically limited, terms such as "arrange," "assemble," "connect," etc., in the description of the utility model are to be understood broadly. Experts in the field can reasonably determine the specific meaning of the terms in the utility model in conjunction with the specific content of the technical scheme.

[0023] With reference to Fig. A wirelessly rechargeable electric toothbrush, according to one embodiment of a first aspect of the utility model, comprises a machine body 100. The machine body 100 includes a cleaning section 101 and a handle 110, which are connected to each other, and the cleaning section 101 is provided with a brush head 102. The handle 110 comprises an outer housing 111 and an inner housing 112. The outer housing 111 is fitted over the inner housing 112. The outer housing 111 is made of metal, which helps to make the outer surface of the handle 110 easy to clean. In some embodiments, the outer housing 111 can be manufactured from a material from the group consisting of stainless steel, aluminum alloy, or magnesium alloy by integration in order to leave no crevices on the surface, to achieve optimized cleanability, and to avoid plastic aging.Simultaneously, the inner housing 112 is nested within the outer housing 111, and the inner housing 112 is bonded to an inner wall of the outer housing 111. Attaching the outer housing 111 to the inner housing 112 with an adhesive simplifies the connection structure, thus improving the utilization rate of the internal space. Furthermore, electric toothbrushes are often maintenance-free, and the use of adhesive bonds can enhance structural strength. In some embodiments, the inner housing 112 utilizes a fully biodegradable PLA (polylactic acid) material. PLA exhibits good biocompatibility and biodegradability and can degrade completely to water and carbon dioxide under certain conditions; therefore, PLA is environmentally friendly.In some embodiments, the brush head 102 can also be made from biodegradable and environmentally friendly materials such as plant fibers to reduce environmental pollution.

[0024] With reference to Fig. At one end of the inner housing 112, away from the cleaning section 101, is a closed end 114, which is tightly arranged and integrally formed with the inner housing 112. The absence of a removable mounting element can significantly improve the sealing effect and prevent water ingress due to aging or loosening of the seal. A charging component is arranged in the closed end 114, and the charging component comprises a magnetic block 116 and several stacked induction coils 115. The magnetic block 116 is located on the radial outer circumferences of the induction coils 115. The magnetic block 116 is designed to fix the handle 110 to the charging station 120 during charging. The stacked induction coils 115 can increase the power transmission efficiency in a limited space, thereby improving the charging efficiency.In some embodiments, a battery compartment 103 and a motor 104 are arranged in the inner housing 112. A battery cell 107 is mounted in the battery compartment 103 and is electrically connected to the charging component. The battery compartment 103 and the motor 104 are stacked along an axial direction of the inner housing 112, and the charging component is attached to one end of the battery compartment 103, away from the motor 104. In some embodiments, a button 105 is arranged on one side of the inner housing 112, and the button 105 is designed to enable a switching function or a function adjustment. A pull-in block 106 is arranged on the opposite side of the battery compartment 103 from the button 105, and the pull-in block 106 is designed to enable a magnetic connection when the machine body 100 is mounted in the wall-mounted box 123 and the disinfection box 130.It can be seen that the motor 104, the battery compartment and the charging components are all pre-connected and assembled and then embedded and mounted in one piece through an opening in the inner housing 112 near the cleaning section 101, which contributes to improving assembly efficiency and at the same time simplifies the connection structure between the inner housing 112 and the internal component, thus facilitating the shaping and manufacturing of each component.

[0025] With reference to Fig. At least two magnetic blocks 116 are provided, and these two magnetic blocks 116 are located on both sides of the induction coils 115 in the radial direction. Each of the magnetic blocks 116 is designed as a crescent or semicircular shape to fully utilize the inner space of the inner housing 112. In some embodiments, at least three stacked induction coils 115 are provided. Stacking the coils allows for a more uniform magnetic field distribution, which helps to increase the coupling coefficient between the transmitting coils 122 and the induction coils 115, thus improving the energy transfer efficiency between the two coils. Furthermore, multi-layered coils can concentrate more magnetic flux in an effective area, increasing the magnetic flux density per unit area and thus improving wireless transmission performance and efficiency.At the same time, the structure of the stacked coils can reduce the edge effect, allowing more energy to be concentrated in the effective area for transmission, which can significantly improve the efficiency and practicality of a wireless charging system.

[0026] With reference to Fig. A cover part 113 is provided at one end of the outer housing 111, away from the cleaning section 101. This cover part 113 covers an outer end face of the closed end 114. The cover part 113 extends along a radial direction of the outer housing 111 in the direction of an axis to prevent the closed end 114 from escaping from the opening at the end of the outer housing 111. In some embodiments, a clearance groove is defined on a radial edge of the closed end 114, designed to receive the cover part 113. The cover part 113 is embedded in the clearance groove so that an outer end wall surface of the closed end 114 is flush with an end wall surface of the outer housing 111, which improves the appearance and prevents dirt accumulation.

[0027] With reference to Fig. A sealing element 117 is arranged at one end of the inner housing 112 near the cleaning section 101. A sealing ring 118 is arranged between the sealing element 117 and an inner wall of the inner housing 112. The sealing element 117 is sealed at the end of the inner housing 112 near the cleaning section 101. The sealing element 117 has a section that is inserted into the inner housing 112, and the radial seal between the sealing element 117 and the inner housing 112 is achieved by the surrounding sealing ring 118. Furthermore, there is a gap between the sealing element 117 and the outer housing 111, and the outer housing 111 can be hermetically connected to the sealing element 117 by injecting an adhesive to prevent the ingress of moisture. In some embodiments, the sealing element 117 is made from the fully biodegradable PLA material to improve the environmental friendliness of the product.

[0028] With reference to Fig. A storage device according to an embodiment of a second aspect of the utility model includes the wirelessly rechargeable electric toothbrush described above. The storage device comprises a charging station 120, a disinfection box 130, and a wall-mounted box 123. The charging station 120 is used for daily charging, the disinfection box 130 is used for travel storage and is capable of performing the disinfection function, the wall-mounted box 123 can be attached to the wall, and the handle 110 can be attached to the wall-mounted box 123 to allow the handle 110 to be attached to a bathroom wall, thus avoiding the need to place the machine body 100 in a location where water easily accumulates, which can reduce the accumulation of dirt on the surface of the handle 110.

[0029] The charging station 120 defines a receiving cavity 121 into which the handle 110 can be inserted. The receiving cavity 121 has a specific depth. In one embodiment of the utility model, the receiving cavity 121 is designed to completely cover at least the closed end 114, which is advantageous for improving the insertion stability of the handle 110. A plurality of stacked transmitting coils 122 are arranged in the charging station 120, which helps to improve the energy transfer efficiency and thus the charging efficiency. In some embodiments, a magnetic block / blocks 116 are arranged on the radial outer surface of the transmitting coils 122 of the charging station 120 to achieve a magnetic connection between the charging station 120 and the handle 110 in order to maintain stability during charging.

[0030] The disinfection box 130 comprises a top cover 131 and a base 132. The top cover 131 and the base 132 can be connected by a hinge or a sliding lid. The top cover 131 is equipped with a disinfection assembly designed to disinfect the brush head 102 in order to prevent bacterial growth during travel and to improve the ease of cleaning the toothbrush. In some embodiments, the disinfection assembly is equipped with a transmitter 134. The position of the transmitter 134 corresponds to the brush head 102, and the transmitter 134 can emit ultraviolet rays to implement the disinfection function. When the machine body 100 is placed in the disinfection box 130, disinfection and sterilization can be achieved at any time, thereby improving the cleanliness of the brush head 102 and simultaneously enhancing the ease of cleaning the toothbrush.

[0031] The base 132 has a receiving cavity 133 for placing the machine body 100, the transmitting coils 122 are arranged on a part in the base 132 corresponding to the closed end 114, and at least three stacked transmitting coils 122 are provided to enable efficient loading of the machine body 100.

[0032] The handle 110 is magnetically connected to the base 132 to enable convenient loading while simultaneously fulfilling the disinfection function. The wall-mounted box 123 features a mounting slot 124 for the machine body 100. The handle 110 is magnetically connected to the mounting slot 124, thus securing the machine body 100 in the slot and facilitating its use. In one configuration, magnetic blocks 125 are located in both the base 132 and the wall-mounted box 123. When the handle 110 is placed in the receiving cavity 133 or the mounting slot 124, each position of the magnetic blocks 125 corresponds to one of the attractor blocks 106, enabling the magnetic installation of the machine body 100 for easy picking up and dropping.In one embodiment, the mounting slot 124 has an arcuate surface that corresponds to the curvature of the side wall of the handle 110, which is advantageous for increasing the contact area between the wall-mounted box 123 and the surface of the handle 110 to improve mounting stability. In some embodiments, the outer housings 111 of the charging station 120, the disinfection box 130, and the wall-mounted box 123 can all be made of PLA biodegradable and environmentally friendly material to achieve recyclable biodegradation and thus improve environmental friendliness.

[0033] The embodiments of the utility model are described in detail above in combination with the accompanying drawings; however, the utility model is not limited to the embodiments mentioned above. Within the knowledge of a person skilled in the art with average expertise, various modifications can be made without altering the essence of the utility model.

Claims

[1] A wirelessly rechargeable electric toothbrush, comprising: a machine body (100) comprising a cleaning section (101) and a handle (110) connected to each other, wherein the cleaning section (101) is provided with a brush head (102), the handle (110) comprises an outer housing (111) and an inner housing (112), the outer housing (111) is fitted over the inner housing (112), the outer housing (111) is made of metal, one end of the inner housing (112) away from the cleaning section (101) is a closed end (114) which is tightly arranged, a charging component is arranged at the closed end (114) in the inner housing (112), the charging component comprises at least one magnetic block (116) and several stacked induction coils (115), and the at least one magnetic block (116) is located on radial circumferences of the induction coils (115). [2] The wirelessly rechargeable electric toothbrush according to claim 1, wherein a cover part (113) is arranged at one end of the outer housing (111) remote from the cleaning section (101), the cover part covering an outer end face of the closed end (114), and the cover part (113) extending along a radial direction of the outer housing (111) in the direction of an axis. [3] The wirelessly rechargeable electric toothbrush according to claim 1, wherein a sealing element (117) is arranged at one end of the inner housing (112) near the cleaning section (101) and a sealing ring (118) is arranged between the sealing element (117) and an inner wall of the inner housing (112). [4] The wirelessly rechargeable electric toothbrush according to claim 1, wherein a battery compartment (103) and a motor (104) are arranged in the inner housing (112) and the charging component is attached to one end of the battery compartment (103) away from the motor (104). [5] The wirelessly rechargeable electric toothbrush according to claim 1, wherein the at least one magnetic block (116) comprises at least two magnetic blocks (116) and the at least two magnetic blocks (116) are located on both sides of the induction coils (115) in the radial direction. [6] The wirelessly rechargeable electric toothbrush according to claim 4, wherein a button (105) is arranged on one side of the inner housing (112) and a pull-on block (106) is arranged on an opposite side of the battery compartment (103) opposite the button (105). [7] A storage device for receiving the wirelessly rechargeable electric toothbrush according to any one of claims 1 to 6, wherein the machine body (100) is provided with the brush head (102) and the handle (110) and the induction coils (115) and the at least one magnet block (116) are arranged in the handle (110), wherein the storage device comprises: a charging station (120) which is provided with a receiving cavity (121) into which a handle (110) may be inserted, wherein several stacked transmitting coils (122) are arranged in the charging station (120) and the transmitting coils (122) are able to generate an induction with the induction coils (115) to enable energy transfer when the handle (110) is inserted into the receiving cavity (121); a disinfection box (130) comprising a top cover (131) and a base (132), the top cover (131) being provided with a disinfection assembly capable of disinfecting the brush head (102), the base (132) having a receiving cavity (133) capable of receiving the machine body (100), the transmitting coils (122) all being arranged on a part in the base (132) corresponding to the closed end (114) to allow the loading of the machine body (100), and the handle (110) being in magnetic connection with the base (132); and a wall-mounted box (123) which has a mounting slot (124) for placing the machine body (100), wherein the handle (110) is in magnetic contact with the mounting slot (124) so ​​that the machine body (100) is fixed in the mounting slot (124). [8] The storage device according to claim 7, wherein the battery compartment and the motor are arranged in the inner housing and the charging component is attached at the end of the battery compartment away from the motor, the button is arranged on the side of the inner housing and the attractor block is arranged on the opposite side of the battery compartment from the button, both the base (132) and the wall-mounted box (123) are each provided with a magnetic block (125) and, when the handle (110) is placed in the receiving cavity (133) or the mounting slot (124), the respective magnetic block (125) is positioned according to the attractor block (106). [9] The storage device according to claim 7, wherein the disinfection assembly is provided with a transmitter (134), the transmitter (134) is positioned according to the brush head (102) and the transmitter (134) can emit ultraviolet rays to achieve a disinfection function. [10] The storage device according to claim 7, wherein the at least one magnetic block comprises at least two magnetic blocks and the at least two magnetic blocks are located on both sides of the induction coils in the radial direction, at least two further magnetic blocks (116) are provided on both radial sides of the transmitting coils (122) and the induction coils (115) in the handle (110) maintain a stable power transmission with the transmitting coils (122) through the at least two magnetic blocks (116) and the at least two further magnetic blocks (116).

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