Electric toothbrush handle, electric toothbrush, and electric toothbrush assembly

Abstract

The application discloses an electric toothbrush handle, an electric toothbrush and an electric toothbrush assembly, relates to the technical field of electric toothbrushes, and is used for conveniently disassembling a holding shell and a bottom shell of the electric toothbrush handle, and reducing the probability of damage of the holding shell and the bottom shell. The electric toothbrush handle comprises a holding piece, a power assembly, an end cover and an adhesive piece. An accommodating cavity is formed in the holding piece. In a first direction, a first end of the holding piece is used for arranging a brush head, and a second end of the holding piece is formed with a channel communicating with the accommodating cavity. The power assembly is arranged in the accommodating cavity and is used for driving the brush head to move. The end cover is arranged at the second end of the holding piece and blocks the channel. The adhesive piece is arranged between the end cover and the holding piece and is arranged along the circumference of the channel. The first direction is the length direction of the holding piece. The electric toothbrush in the application is used for cleaning the oral cavity and the teeth.

Description

Technical Field

[0001] This application relates to the field of toothbrush technology, and more particularly to an electric toothbrush handle, an electric toothbrush, and an electric toothbrush assembly. Background Technology

[0002] Electric toothbrushes are widely used in daily life as a personal care household appliance. An electric toothbrush includes an electric toothbrush handle and a brush head. The electric toothbrush handle is connected to the brush head and is used to drive the brush head to clean the mouth and teeth.

[0003] In related technologies, the outer shell of an electric toothbrush handle includes a grip shell and a bottom shell. The first end of the grip shell is used to set the brush head, and the second end of the grip shell has a disassembly hole. The bottom shell is snapped into the second end of the grip shell to block the disassembly hole. When it is necessary to remove the parts inside the grip shell, the bottom shell and the grip shell can be separated to open the disassembly hole, thereby facilitating the removal of the parts inside the grip shell.

[0004] However, because the bottom shell and the grip shell are snapped together, disassembly is difficult and may damage the grip shell and bottom shell that are connected to the snap-fit ​​structure. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides an electric toothbrush handle, an electric toothbrush, and an electric toothbrush assembly, which facilitates the disassembly of the grip shell and bottom shell of the electric toothbrush handle and reduces the probability of damage to the grip shell and bottom shell.

[0006] This application is achieved through the following technical solution.

[0007] This application provides an electric toothbrush handle, including a grip, a power assembly, an end cap, and an adhesive component. The grip has a cavity inside. Along a first direction, a first end of the grip is used to mount a brush head, and a second end of the grip has a channel communicating with the cavity. The power assembly is located in the cavity and is used to drive the brush head. The end cap is located at the second end of the grip and blocks the channel. The adhesive component is bonded between the end cap and the grip, and is arranged circumferentially along the channel. The first direction is the length direction of the grip.

[0008] In the technical solution of this application embodiment, the power component is used to drive the brush head to move, thereby cleaning the oral cavity and teeth. The end cap and the grip are connected by an adhesive to seal the receiving cavity, thereby preventing water, debris, etc. from entering the receiving cavity. Since the power component is located inside the receiving cavity, the end cap and the grip can provide physical protection for the power component.

[0009] Since the end cap and gripper are bonded together with adhesive, the adhesive strength can be reduced or eliminated when the channel needs to be opened, thereby separating the end cap and gripper to allow the power assembly to be disassembled through the channel. Because the connection between the gripper and end cap is achieved through adhesive bonding, the overall appearance of the gripper and end cap is more aesthetically pleasing, and the disassembly of the gripper and end cap is also easier.

[0010] In some embodiments of this application, an adhesive is disposed around the circumference of the channel, the adhesive having opposing first and second annular surfaces, the first annular surface being bonded to the end cap and the second annular surface being bonded to the gripper.

[0011] With this configuration, the end cap is bonded using the first annular surface and the gripping component is bonded using the second annular surface, thus achieving bonding between the end cap and the gripping component around the circumference of the channel. This ensures bonding strength and a tight connection between the gripping component and the end cap.

[0012] In some embodiments of this application, the adhesive includes PUR hot melt adhesive, which is applied between the end cap and the grip.

[0013] This design allows the PUR hot melt adhesive to provide sufficient connection strength between the grip and the end cap while maintaining their overall aesthetic appeal. Furthermore, when separation is required, the PUR hot melt adhesive can be heated to reduce its tackiness, allowing for easy separation by applying force. Additionally, after bonding the end cap and grip with PUR, a dense adhesive layer forms between them. This layer physically prevents the penetration of external moisture, providing excellent waterproofing and ensuring stable bonding between the end cap and grip in various aquatic environments.

[0014] In some embodiments of this application, the end cap includes a connected sealing portion and a connecting portion, with at least a portion of the sealing portion extending into the channel to seal the channel. The connecting portion is disposed circumferentially along the channel and is located on the end face of the second end of the gripper. An adhesive is bonded between the connecting portion and the end face.

[0015] With this configuration, the sealing part blocks the channel, and the connecting part is connected to the end face through an adhesive. Since the connecting part is located on the end face, it is located outside the channel, which facilitates the separation of the connecting part and the gripping part.

[0016] In some embodiments of this application, the electric toothbrush handle further includes a seal, which is disposed between the sealing portion and the inner wall surface of the channel and is arranged circumferentially along the channel.

[0017] With this design, the sealant can improve the sealing between the sealing part and the inner wall of the channel, so as to prevent water, debris and other foreign objects from entering the cavity through the channel.

[0018] In some embodiments of this application, at least one of the inner wall surface of the channel and the outer wall surface of the sealing part facing the inner wall surface of the channel has a sealing groove, and the sealing groove is arranged along the circumference of the channel; the sealing element is matched and disposed in the sealing groove.

[0019] With this configuration, the seal is located within the sealing groove, which improves the stability of the seal and thus enhances the sealing effect.

[0020] In some embodiments of this application, the power assembly includes a power unit, a battery storage unit, and a charging unit. The power unit is electrically connected to the battery storage unit and is used to drive the brush head movement. The battery storage unit provides electrical energy to the power unit. The charging unit is electrically connected to the battery storage unit and is used for wireless connection to the charging base.

[0021] With this setup, the battery can provide power to the motor, which drives the brush head to clean the mouth and teeth. When the battery needs to be charged, it can be charged wirelessly via the charging base. Wireless charging improves the convenience of charging.

[0022] In some embodiments of this application, a space is formed inside the sealing part, and the charging part is housed within the space.

[0023] With this configuration, since the charging unit is located within the space of the sealing part, and is positioned close to the second end of the grip, it is easy for the charging base to wirelessly connect to the charging unit at the second end of the grip.

[0024] In some embodiments of this application, the power assembly further includes a magnetic attraction portion disposed on the sealing portion for magnetic connection with the charging base.

[0025] This configuration allows the grip and charging base to be magnetically connected via a magnetic attraction part, thereby improving the stability of the grip and charging base setup, which in turn improves the stability of the wireless connection between the charging base and the charging unit, and ultimately enhances charging stability.

[0026] In some embodiments of this application, the electric toothbrush handle further includes a support member disposed within the receiving cavity. Along a first direction, a portion of the support member extends into the channel, and a magnetic part abuts against the support member and the sealing part.

[0027] With this configuration, the magnetic suction part is abutted between the support and the sealing part, thereby achieving the fixed stability of the magnetic suction part. After separating the sealing part and the gripping part, the magnetic suction part can be directly removed from the channel, which also improves the ease of disassembly of the magnetic suction part.

[0028] A second aspect of this application provides an electric toothbrush, including a brush head and an electric toothbrush handle as described in any of the above embodiments, wherein the power component of the electric toothbrush handle is connected to the brush head via a drive mechanism.

[0029] In the technical solutions of this application embodiment, since the electric toothbrush includes the electric toothbrush handle of any of the above embodiments, the same beneficial effects can be achieved.

[0030] A third aspect of this application provides an electric toothbrush assembly, including a charging base and an electric toothbrush as described in any of the above embodiments, wherein a power component of the electric toothbrush is used for wireless connection with the charging base.

[0031] In the technical solutions of this application embodiment, since the electric toothbrush assembly includes the electric toothbrush in any of the above embodiments, the same beneficial effects can be achieved. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0033] Figure 1 A schematic diagram of the external structure of an electric toothbrush assembly provided for some embodiments of this application;

[0034] Figure 2 A schematic diagram of the external structure of an electric toothbrush provided for some embodiments of this application;

[0035] Figure 3 A schematic diagram of a first external structure of an electric toothbrush handle provided for some embodiments of this application;

[0036] Figure 4 A schematic diagram of a second external structure of an electric toothbrush handle provided for some embodiments of this application;

[0037] Figure 5 for Figure 4 Schematic diagram of the cross section at point AA;

[0038] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle;

[0039] Figure 7 A first exploded view of an electric toothbrush handle provided for some embodiments of this application;

[0040] Figure 8 A second exploded view of an electric toothbrush handle provided for some embodiments of this application.

[0041] Explanation of reference numerals in the attached figures

[0042] 100-Electric toothbrush assembly; 110-Electric toothbrush; 111-Brush head; 112-Electric toothbrush handle; 1121-Holding part; a-Receiving cavity; b-Channel; 1122-Power assembly; C1-Power unit; C2-Electric storage unit; C3-Charging unit; C4-Magnetic suction unit; 1123-End cap; B1-Sealing part; d-Space; B11-Main body; B12-Matching body; B2-Connecting part; 1124-Adhesive part; 1125-Sealing part; c-Sealing groove; 1126-Supporting part; 120-Charging base. Detailed Implementation

[0043] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0046] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0048] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0049] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0050] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0051] The following is a detailed description of this application.

[0052] Electric toothbrushes are widely used in daily life as a personal care household appliance. Electric toothbrushes are usually used with a charging base, which allows the electric toothbrush to be charged while it moves automatically to clean the mouth.

[0053] Based on this, such as Figure 1 As shown, this application provides an electric toothbrush assembly 100, which includes a charging base 120 and an electric toothbrush 110, wherein a power component 1122 of the electric toothbrush 110 is used for wireless connection with the charging base 120.

[0054] The charging base 120 is a component that can wirelessly connect to the electric toothbrush 110 to supply power to the electric toothbrush 110. The power unit 1122 of the electric toothbrush 110 is a component that can use electrical energy to drive the brush head 111 of the toothbrush to move.

[0055] With the above settings, the charging base 120 can supply power to the power component 1122 of the electric toothbrush 110, and the power component 1122 of the electric toothbrush 110 can perform the function of cleaning teeth and oral cavity through corresponding actions.

[0056] Based on this, such as Figure 2 As shown, this application also provides an electric toothbrush 110, which includes a brush head 111 and an electric toothbrush handle 112, wherein the power component 1122 of the electric toothbrush handle 112 is connected to the brush head 111 in a transmission manner.

[0057] The brush head 111 and the power component 1122 can be detachably connected, so that the brush head 111 and the power component 1122 can be disassembled and installed. When it is necessary to replace the brush head 111, the brush head 111 can be removed and a new brush head 111 can be replaced.

[0058] With the above configuration, the power unit 1122 can drive the brush head 111 to move, thereby cleaning the oral cavity and teeth using the brush head 111. The function is achieved through the cooperation of the power unit 1122 and the brush head 111.

[0059] The outer shell of the electric toothbrush handle 112 includes a grip shell and a bottom shell. The first end of the grip shell is used to set the brush head 111, and the second end of the grip shell has a disassembly hole. The bottom shell is connected to the second end of the grip shell to block the disassembly hole. When it is necessary to remove the parts inside the grip shell, the bottom shell and the grip shell can be separated to open the disassembly hole, thereby facilitating the removal of the parts inside the grip shell.

[0060] However, in related technologies, the bottom shell and the grip shell are usually connected by snap-fit ​​or screws. Therefore, disassembly is difficult. Snap-fit ​​can also damage the structure of the grip shell and bottom shell connected to the snap-fit ​​structure, while screw connection affects the appearance of the battery-operated toothbrush handle.

[0061] Based on this, such as Figures 3-7 As shown, this application also provides an electric toothbrush handle 112, which includes a grip 1121, a power assembly 1122, an end cap 1123, and an adhesive member 1124. The grip 1121 has a receiving cavity a inside, along a first direction ( Figure 4In the vertical direction of the cavity, the first end of the grip 1121 is used to hold the brush head 111, and the second end of the grip 1121 forms a channel b communicating with the receiving cavity a. A power assembly 1122 is located in the receiving cavity a and is used to drive the brush head 111. An end cap 1123 is located at the second end of the grip 1121 and blocks the channel b. An adhesive 1124 is bonded between the end cap 1123 and the grip 1121, and the end cap 1123 and the grip 1121 are detachably connected by the adhesive 1124, which is arranged circumferentially along the channel b. The first direction is the length direction of the grip 1121.

[0062] The grip 1121 refers to the part that the user holds when using the electric toothbrush handle 112. It is generally a long strip structure, such as a cylindrical or prism structure. The first direction being the length direction of the grip 1121 means that the first direction is the extension direction of the long strip structure. A switch button can be installed on the grip 1121 to control the power unit 1122 to start or stop.

[0063] The end cap 1123 is a component that can close the channel b on the grip 1121. The end cap 1123 and the grip 1121 together form the outer shell of the electric toothbrush handle 112.

[0064] In some examples, the power assembly 1122 may include a power unit C1 such as a motor, the output shaft of which extends from the first end of the grip 1121 into the receiving cavity a to be connected to the brush head 111 in a drive, thereby using the motor to drive the brush head 111 to move and use the brush head 111 to clean the oral cavity and teeth.

[0065] As for the adhesive component 1124, it can be double-sided tape, fixing adhesive, or liquid adhesive, etc. However, it should be noted that after the adhesive component 1124 achieves the bonding of the end cap 1123 and the gripper 1121, the adhesiveness of the adhesive component 1124 itself can be weakened by changing the temperature, so that the end cap 1123 and the gripper 1121 can be separated. For example, the adhesiveness of the adhesive component 1124 can be weakened by heating, thereby achieving the separability of the end cap 1123 and the gripper 1121. Alternatively, after the end cap 1123 and the gripper 1121 are connected by the adhesive component 1124, they can be separated without leaving marks by a certain external force without damaging the structure of the end cap 1123 and the gripper 1121.

[0066] With the above configuration, the power assembly 1122 is connected to the brush head 111 for transmission, thereby driving the brush head 111 to move and clean the oral cavity and teeth. The end cap 1123 and the grip 1121 are connected by an adhesive 1124 to seal the receiving cavity a, thereby preventing water, debris, etc. from entering the receiving cavity a. Since the power assembly 1122 is located inside the receiving cavity a, the end cap 1123 and the grip 1121 can provide physical protection for the power assembly 1122.

[0067] Since the end cap 1123 and the grip 1121 are bonded together by an adhesive component 1124, the adhesiveness of the adhesive component 1124 can be reduced or eliminated when it is necessary to open the channel b, thereby separating the end cap 1123 and the grip 1121 so that the power assembly 1122 can be disassembled through the channel b. Because the connection between the grip 1121 and the end cap 1123 is achieved through the adhesive component 1124, disassembly is relatively easy and unlikely to damage either component. Furthermore, since the adhesive component 1124 is located between the end cap 1123 and the grip 1121 and is not exposed externally, the aesthetic appearance of the electric toothbrush handle 112 can be maintained.

[0068] In some embodiments, such as Figure 7 As shown, an adhesive member 1124 is arranged around the circumference of channel b. The adhesive member 1124 has a first annular surface and a second annular surface that are opposite each other. The first annular surface is bonded to the end cap 1123 and the second annular surface is bonded to the gripper 1121.

[0069] In other words, the adhesive 1124 extends circumferentially along the channel b, which ensures that the end cap 1123 and the gripper 1121 are continuously bonded circumferentially along the channel b, thus ensuring the strength of the bond.

[0070] With the above configuration, the end cap 1123 is bonded using the first annular surface and the gripper 1121 is bonded using the second annular surface, thereby achieving bonding of the end cap 1123 and the gripper 1121 around the circumference of the channel b. This ensures the bonding strength and the tightness of the connection between the gripper 1121 and the end cap 1123.

[0071] Of course, in other embodiments, the adhesive 1124 also includes multiple adhesive segments arranged sequentially along the circumference of the channel b. Each adhesive segment can bond the end cap 1123 and the grip 1121, thus achieving the connection between the end cap 1123 and the grip 1121.

[0072] In some embodiments, such as Figure 7 As shown, the adhesive 1124 includes PUR hot melt adhesive, which is applied between the end cap 1123 and the grip 1121.

[0073] Among them, PUR hot melt adhesive refers to moisture-curing reactive polyurethane hot melt adhesive.

[0074] It is understandable that PUR hot melt adhesive has the following characteristics: it cures by absorbing moisture from the air and undergoes an irreversible chemical reaction to form a cross-linked network structure. PUR hot melt adhesive is solid in its initial state. After being heated and melted, it is applied between the grip 1121 and the end cap 1123. When it is necessary to disassemble the grip 1121 and the end cap 1123, the PUR hot melt adhesive needs to be heated and mechanical force is used to achieve disassembly.

[0075] Through the above configuration, the PUR hot melt adhesive can meet the connection strength requirements of the grip 1121 and the end cap 1123, while also ensuring the overall aesthetics of both. Furthermore, when it is necessary to separate the grip 1121 and the end cap 1123, the PUR hot melt adhesive can be heated to reduce its tackiness, allowing force to be applied to separate them, thus improving the ease of separation. Additionally, after bonding the end cap 1123 and the grip 1121 with PUR, a dense adhesive layer is formed between them. This layer physically blocks the penetration of external moisture, thus providing excellent waterproofing and ensuring the bonding stability between the end cap 1123 and the grip 1121 in various water environments.

[0076] Of course, in other embodiments, the adhesive 1124 may also be a hot melt pressure-sensitive adhesive.

[0077] In some embodiments, such as Figure 6 , Figure 8 As shown, the end cap 1123 includes a sealing portion B1 and a connecting portion B2 connected together. At least a portion of the sealing portion B1 extends into the channel b to seal the channel b. The connecting portion B2 is disposed circumferentially along the channel b and is located on the end face of the second end of the gripper 1121. An adhesive member 1124 is bonded between the connecting portion B2 and the end face.

[0078] In other words, the blocking part B1 blocks the channel b, and the connecting part B2 uses the adhesive 1124 to connect with the end face located on the gripping part 1121.

[0079] The connection portion B2 can be arranged circumferentially around the channel b, for example, the connection portion B2 extends circumferentially around the channel b, or the connection portion B2 includes multiple connection segments arranged circumferentially around the channel b. Alternatively, the connection portion B2 can be arranged circumferentially around the channel b by extending a section circumferentially around the channel b.

[0080] Correspondingly, along the circumferential direction of channel b, the connecting part B2 is matched with the adhesive 1124 to achieve the bonding of the connecting part B2 and the gripper 1121.

[0081] In some examples, along a first direction, the adhesive 1124 has opposing first and second annular surfaces. The first annular surface faces the connecting portion B2 and is bonded to the connecting portion B2, while the second annular surface faces the end face and is bonded to the end face, thus bonding to the gripper 1121 via the end face. The bonding between the connecting portion B2 and the end face is achieved through the arrangement of the first and second annular surfaces of the adhesive 1124.

[0082] With the above configuration, the sealing part B1 blocks the channel b, and the connecting part B2 is connected to the end face through the adhesive 1124. Since the connecting part B2 is located on the end face, it is located outside the channel b. Thus, when it is necessary to separate the end face and the connecting part B2, the connecting part B2 and the holding member 1121 can be grasped from outside the channel b, and force can be applied to separate the holding member 1121 and the connecting part B2. The cooperation between the sealing part B1 and the connecting part B2 facilitates the separation of the connecting part B2 and the holding member 1121, and facilitates the sealing part B1 to block the channel b. Of course, when the adhesive 1124 is used to bond the connecting part B2 and the end face, the adhesive 1124 can also be used to seal the connecting part B2 and the end face. That is to say, the adhesive 1124 not only has a connecting function, but also a sealing function.

[0083] In some embodiments, such as Figure 6 As shown, the electric toothbrush handle 112 also includes a sealing member 1125, which is disposed between the sealing part B1 and the inner wall surface of the channel b, and is arranged along the circumference of the channel b.

[0084] The sealing element 1125 can be a sealing ring or multiple sealing segments. The multiple sealing segments are arranged circumferentially along the channel b, and the specific arrangement can be selected and set as needed.

[0085] Alternatively, the seal 1125 can be arranged circumferentially around the channel b, or extend for a certain distance. The seal 1125 can also extend circumferentially around the channel b, or it can include multiple sealing segments that encircle the channel b. This ensures a tight seal.

[0086] In some examples, there are multiple seals 1125, which are arranged along the extension direction of the channel b. By providing multiple seals 1125, the sealing performance between the sealing part B1 and the inner wall surface of the channel b can be further improved.

[0087] With the above configuration, not only can the connecting part B2 be connected and sealed by the adhesive 1124 and the end face, but the sealing part 1125 can also seal the sealing part B1 and the channel b. Thus, with the cooperation of the sealing part 1125 and the adhesive 1124, the sealing performance at the channel b can be improved to prevent water, debris and other foreign matter outside the receiving cavity a from entering the receiving cavity a through the channel b.

[0088] In some embodiments, such as Figure 6 As shown, at least one of the inner wall surface of channel b and the outer wall surface of the sealing part B1 facing the inner wall surface of channel b has a sealing groove c, and the sealing groove c is arranged along the circumference of channel b. The sealing element 1125 is matched and disposed in the sealing groove c.

[0089] In other words, this embodiment includes three schemes: First, the inner wall surface of channel b has a sealing groove c. Second, the outer wall surface of the blocking part B1 facing the inner wall surface of channel b has a sealing groove c. Third, both the inner wall surface of channel b and the outer wall surface of the blocking part B1 facing the inner wall surface of channel b have sealing grooves c. In this case, part of the sealing member 1125 is located in the sealing groove c on the inner wall surface of channel b, and the other part of the sealing member 1125 is located in the sealing groove c on the outer wall surface of the blocking part B1 facing the inner wall surface of channel b.

[0090] In some examples, the sealing groove c is arranged circumferentially along the channel b, which may be a complete circle or a partial circle around the channel b. Specifically, the sealing groove c may extend circumferentially around the channel b, or the sealing groove c may include multiple groove segments arranged circumferentially along the channel b.

[0091] In addition, it is understandable that the seal 1125 is matched and set in the sealing groove c, which means that the structure of the seal 1125 must be compatible with the structure of the sealing groove c, so as to ensure that the seal 1125 can be set in the sealing groove c.

[0092] In some examples, there are multiple seals 1125, and correspondingly, there are also multiple sealing grooves c. Multiple sealing grooves c are spaced apart along the extension direction of channel b, and the seals 1125 are placed in the corresponding sealing grooves c. This can achieve a stable setting of multiple seals 1125, thereby ensuring sealing performance.

[0093] With the above settings, the seal 1125 is located in the sealing groove c. The sealing groove c can improve the stability of the setting of the seal 1125, thereby improving the sealing effect.

[0094] In some embodiments, such as Figure 5 As shown, the power assembly 1122 includes a power unit C1, a battery storage unit C2, and a charging unit C3. The power unit C1 is electrically connected to the battery storage unit C2 and is used to drive the brush head 111 to move. The battery storage unit C2 provides electrical energy to the power unit C1. The charging unit C3 is electrically connected to the battery storage unit C2 and is used for wireless connection with the charging base 120.

[0095] The power unit C1 refers to the component that can drive the brush head 111 to move. For example, the power unit C1 can be a motor, and the output shaft of the motor is used to drive the brush head 111 to move.

[0096] In addition, the energy storage unit C2 refers to a component that can store electrical energy and provide electrical energy to the power unit C1. For example, the energy storage unit C2 can be a lithium battery or a lead-acid battery.

[0097] The charging unit C3 refers to the component that can transfer external electrical energy to the energy storage unit C2, thereby charging the energy storage unit C2. For example, during wireless charging, the charging unit C3 can be a charging coil, and the charging base 120 also has a coil corresponding to the charging coil inside.

[0098] With the above configuration, the power unit C2 can provide power to the power unit C1, which is used to drive the brush head 111 to clean the mouth and teeth. When it is necessary to charge the power unit C2, it can be charged through the wireless connection between the charging base 120 and the charging unit C3. Wireless charging can improve the convenience of charging, and the configuration of the power unit C2 can make the electric toothbrush handle 112 adaptable to various working environments.

[0099] In some embodiments, such as Figure 6 As shown, a space d is formed inside the sealing part B1, and the charging part C3 is housed in the space d.

[0100] In some examples, the size of the space d is matched with the size of the charging unit C3, so that the charging unit C3 can be stably placed in the space d, thereby ensuring a stable electrical connection between the charging unit C3 and the charging base 120.

[0101] In some examples, the charging part C3 is a ring-shaped charging coil, and correspondingly, the space d is also a ring cavity. The ring-shaped charging coil is matched and set in the ring cavity, which can save the volume of space d, ensure the structural strength of the sealing part B1, and at the same time ensure the stability of the ring-shaped charging coil.

[0102] In some examples, such as Figure 6 As shown, the sealing part B1 includes a main body B11 and a mating body B12. Along the first direction, the main body B11 and the mating body B12 are arranged opposite to each other. The mating body B12 has an annular groove on the side facing the main body B11. The openings of the main body B11 and the annular groove are opposite to each other and are engaged to form an annular cavity, that is, to form a space d. The main body B11 and the mating body B12 are detachably connected, which makes it easy to open the space d, thereby facilitating the disassembly and assembly of the charging part C3.

[0103] With the above configuration, since the charging unit C3 is located in the space d within the sealing part B1, the sealing part B1 can provide physical protection for the charging unit C3. Moreover, since the charging unit C3 is located close to the second end of the grip 1121, it is convenient for the charging base 120 to wirelessly connect with the charging unit C3 at the second end of the grip 1121, thus ensuring the convenience of wireless connection.

[0104] In some embodiments, such as Figure 6 As shown, the power assembly 1122 also includes a magnetic part C4, which is located on the sealing part B1 for magnetic connection with the charging base 120.

[0105] The magnetic part C4 can be a permanent magnet or an electromagnet, as long as it can be used to magnetically connect the electric toothbrush handle 112 and the charging base 120.

[0106] In some examples, along the first direction, the sealing part B1 has a groove on the side facing the receiving cavity a, and the magnetic part C4 is disposed in the groove. By setting the groove, the thickness of the sealing part B1 along the first direction can be reduced, thereby making it easier for the magnetic part C4 and the charging base 120 to be magnetically connected.

[0107] With the above configuration, the grip 1121 and the charging base 120 can be magnetically connected via the magnetic attraction part C4, thereby improving the stability of the grip 1121 and the charging base 120, and thus improving the stability of the radio connection between the charging base 120 and the charging part C3, and improving charging stability. Furthermore, since the magnetic attraction part C4 is located on the sealing part B1, it is positioned close to the second end of the grip 1121, facilitating the magnetic connection between the charging base 120 and the magnetic attraction part C4 when the second end of the grip 1121 is wirelessly connected to the charging part C3.

[0108] In some embodiments, such as Figure 6 , Figure 7 As shown, the electric toothbrush handle 112 also includes a support member 1126, which is disposed in the receiving cavity a. Along the first direction, part of the support member 1126 extends into the channel b, and the magnetic part C4 abuts against the support member 1126 and the sealing part B1.

[0109] Among them, the support member 1126 can be a frame, which can not only ensure the support performance of the support member 1126, but also control the weight of the support member 1126.

[0110] In some examples, a portion of the support 1126 extends into the groove along a first direction to abut against the magnetic part C4 located within the groove.

[0111] In some examples, along the first direction, the main body is connected to the end face via the connecting part B2, and the mating body B12 is abutted between the support member 1126 and the main body, which facilitates the assembly and disassembly of the main body and the mating body B12, thereby facilitating the assembly and disassembly of the charging part C3.

[0112] In some examples, the support 1126 is also used to support the power assembly 1122, so that the support 1126 can ensure the stability of the power assembly 1122 disposed within the receiving cavity a.

[0113] With the above arrangement, the magnetic suction part C4 is abutted between the support member 1126 and the blocking part B1, thereby fixing the magnetic suction part C4. In addition, after separating the blocking part B1 and the gripping member 1121, the magnetic suction part C4 can be directly removed from the channel b, which can also improve the ease of disassembly of the magnetic suction part C4.

[0114] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An electric toothbrush handle, characterized in that, include: The grip has an internal cavity. Along a first direction, a first end of the grip is used to hold a brush head, and a second end of the grip has a channel communicating with the cavity. A power unit, located in the receiving cavity, is used to drive the brush head movement; An end cap is provided at the second end of the grip and blocks the channel; An adhesive element is bonded between the end cap and the gripper, and the adhesive element is arranged circumferentially along the channel; Wherein, the first direction is the length direction of the gripping member.

2. The electric toothbrush handle according to claim 1, characterized in that, The adhesive is arranged around the circumference of the channel, and the adhesive has a first annular surface and a second annular surface that are opposite each other. The first annular surface is bonded to the end cap, and the second annular surface is bonded to the gripper.

3. The electric toothbrush handle according to claim 1, characterized in that, The adhesive includes PUR hot melt adhesive, which is applied between the end cap and the grip.

4. The electric toothbrush handle according to any one of claims 1-3, characterized in that, The end cap includes a sealing portion and a connecting portion connected together. At least a portion of the sealing portion extends into the channel to seal the channel. The connecting portion is arranged circumferentially along the channel and is located on the end face of the second end of the grip. The adhesive is bonded between the connecting portion and the end face.

5. The electric toothbrush handle according to claim 4, characterized in that, The electric toothbrush handle also includes a sealing element, which is disposed between the sealing part and the inner wall surface of the channel and is arranged along the circumference of the channel.

6. The electric toothbrush handle according to claim 5, characterized in that, At least one of the inner wall surface of the channel and the outer wall surface of the sealing part facing the inner wall surface of the channel has a sealing groove, and the sealing groove is arranged along the circumference of the channel; the sealing element is matched and disposed in the sealing groove.

7. The electric toothbrush handle according to claim 4, characterized in that, The power assembly includes a power unit, a battery storage unit, and a charging unit. The power unit is electrically connected to the battery storage unit and is used to drive the brush head to move. The battery storage unit is used to provide electrical energy to the power unit. The charging unit is electrically connected to the battery storage unit and is used to wirelessly connect to the charging base.

8. The electric toothbrush handle according to claim 7, characterized in that, The sealing part has a space inside, and the charging part is housed in the space.

9. The electric toothbrush handle according to claim 7, characterized in that, The power assembly also includes a magnetic suction part disposed on the sealing part for magnetic connection with the charging base.

10. The electric toothbrush handle according to claim 9, characterized in that, The electric toothbrush handle also includes a support member disposed within the receiving cavity. Along the first direction, a portion of the support member extends into the channel, and the magnetic suction part abuts against the support member and the sealing part.

11. An electric toothbrush, characterized in that, include: Brush head; The electric toothbrush handle according to any one of claims 1-10, wherein the power component of the electric toothbrush handle is connected to the brush head drive.

12. An electric toothbrush assembly, characterized in that, include: Charging dock; The electric toothbrush of claim 11, wherein the power component of the electric toothbrush is used for wireless connection with the charging base.

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