Electric toothbrush
By designing an inclined brush handle support, the problem of poor comfort in existing electric toothbrushes has been solved, improving the user's brushing experience and cleaning effect.
Patent Information
- Application Number
- CN202521363137.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-30
AI Technical Summary
The current design of electric toothbrush handles requires users to actively bend their wrists while brushing, which reduces cleaning efficiency and comfort.
Design a brush handle support frame with its head tilted relative to its tail, and the brush head tilted towards the bristles relative to the corresponding parts of the handle and tail. This reduces the range of wrist flexion when brushing teeth, and ensures user comfort through appropriate angle and length ratio design.
It improves user comfort and cleaning effectiveness while brushing teeth, reduces the range of wrist flexion, and maintains the user's brushing habits and natural grip.
Smart Images
Figure CN224671645U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of personal care product technology, and specifically provides an electric toothbrush. Background Technology
[0002] An electric toothbrush typically consists of a brush head and a handle. The brush head has bristles for cleaning teeth, while the handle houses a motor that connects to the brush head and a battery that powers the motor. To ensure the stability of the internal components, a support frame is usually installed inside the handle to secure the motor to the end of the support frame closer to the brush head, and the battery is installed at the end of the support frame furthest from the brush head.
[0003] Current electric toothbrushes generally use a linear support frame structure, causing the brush head axis to coincide with the axis of the handle grip. While this design simplifies the internal assembly of the handle, it has significant ergonomic flaws: users must actively bend their wrists to ensure the bristles effectively conform to the curved surfaces of their teeth, especially when cleaning molars, requiring increased wrist movement. This not only reduces the cleaning efficiency of existing electric toothbrushes but also results in poor user comfort.
[0004] While some electric toothbrushes attempt to improve brushing comfort by bending the brush head, the handle remains straight, failing to fundamentally change the user's grip posture and resulting in continued poor brushing comfort. Therefore, there is an urgent need for an electric toothbrush that naturally adapts to the angle of the human hand. Utility Model Content
[0005] One objective of this invention is to solve the problem of poor user comfort in existing electric toothbrushes.
[0006] To achieve the above objectives, this utility model provides an electric toothbrush, comprising:
[0007] Brush head, including bristles used for cleaning teeth;
[0008] A brush handle includes a housing and a support frame disposed within the housing. The support frame includes a head and a tail located on the side of the head away from the brush head. The brush handle also includes a motor mounted on the head and a battery mounted on the tail. The motor is drivenly connected to the brush head. The head is tilted relative to the tail towards the brush head, so that the brush head is tilted relative to the portion of the brush handle corresponding to the tail towards the bristles, thereby making it easier for the user to hold the brush handle while brushing their teeth.
[0009] Optionally, the angle between the head and the tail is selected from any value between 1° and 10°.
[0010] Optionally, the angle between the head and the tail is selected from any value between 2° and 3°.
[0011] Optionally, the ratio of the length of the head to the length of the tail is selected from any value between 0.3 and 1.
[0012] Optionally, the ratio of the length of the head to the length of the tail is selected from any value between 0.5 and 0.7.
[0013] Optionally, the length from the tip of the brush head to the junction of the head and the tail is denoted as the inclined length, and the ratio of the inclined length to the length of the tail is greater than or equal to 1.5.
[0014] Optionally, the brush handle further includes a button, and a pressing area aligned with the button is provided on the side of the housing near the bristles; the pressing area is aligned with the head towards the inside of the brush handle.
[0015] Optionally, the length from the pressing area to the junction of the head and the tail is denoted as the pressing length, and the ratio of the pressing length to the length of the tail is selected from any value from 0.1 to 0.3.
[0016] Optionally, the length direction of the motor is parallel to the length direction of the head.
[0017] Optionally, the outer side of the housing is provided with a concave-convex structure; the brush head and the concave-convex structure are spaced apart when projected onto a plane perpendicular to the length direction of the tail.
[0018] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by tilting the head of the support frame relative to the tail towards the brush head, the brush head is tilted relative to the corresponding part of the handle and tail towards the bristles, thereby making it easier for the user to hold the handle while brushing their teeth and improving user comfort. Simply put, the electric toothbrush of this utility model reduces the bending range of the user's wrist while brushing their teeth, improves the user's comfort in holding the handle, and enhances the cleaning effect on the user's teeth.
[0019] Furthermore, by selecting an angle between the head and tail from any value between 1° and 10°, and particularly from any value between 2° and 3°, the bending of the user's wrist during brushing is reduced without significantly altering the user's previous brushing posture and habits. Therefore, this electric toothbrush is more readily accepted by a wide range of users, especially ensuring user comfort upon first use. Moreover, the bending degree at the junction of the outer shell and the head and tail is not significant, allowing the user's fingers and palm to naturally bend and conform to the outer shell when holding this part, resulting in good comfort.
[0020] Furthermore, by selecting a ratio of the length of the head to the length of the tail from any value between 0.3 and 1, and particularly by selecting a ratio of the length of the head to the length of the tail from any value between 0.5 and 0.7, it is ensured that the portion of the brush handle corresponding to the tail has sufficient length for the user to hold, thereby ensuring the user's comfort when holding the brush handle.
[0021] Furthermore, by making the ratio of the tilt length of the brush head to the length of the tail greater than or equal to 1.5, the bristles can have a sufficient offset relative to the handle, thereby ensuring that the user's wrist does not bend too much when brushing their teeth.
[0022] Furthermore, by selecting a value from 0.1 to 0.3 for the ratio of the pressing length corresponding to the pressing area on the outer shell to the length of the tail, the user can operate the pressing area with the thumb of the same hand when holding the brush handle, thus improving the user experience.
[0023] Furthermore, by aligning the length of the motor with the length of the head, the installation and securing of the motor to the support frame is also facilitated.
[0024] Furthermore, by creating a textured surface on the outer side of the casing, sufficient friction is generated when the brush handle is gripped by the user, preventing slippage and making it easier for the user to hold the brush handle. The projection onto a plane perpendicular to the length direction of the tail, by creating a gap between the brush head and the textured surface, prevents the textured surface from pressing on the user's thumb, thus improving the user experience.
[0025] Other beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of this utility model. Attached Figure Description
[0026] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:
[0027] Figure 1 This is a first perspective view of an electric toothbrush in some embodiments of the present invention;
[0028] Figure 2 This is a second perspective view of an electric toothbrush in some embodiments of this utility model;
[0029] Figure 3 This is a first side view of an electric toothbrush in some embodiments of this utility model;
[0030] Figure 4 This is a second side view of an electric toothbrush in some embodiments of this utility model;
[0031] Figure 5 yes Figure 4 A cross-sectional view of a medium-sized electric toothbrush along the AA direction;
[0032] Figure 6 This is a first perspective view of the support frame in some embodiments of this utility model;
[0033] Figure 7 This is a second perspective view of the support frame in some embodiments of this utility model;
[0034] Figure 8 This is a side view of the support frame in some embodiments of this utility model.
[0035] Explanation of reference numerals in the attached figures:
[0036] 001. Electric toothbrush;
[0037] 100. Brush head; 110. Brush bristles;
[0038] 200, brush handle; 210, outer shell; 211, pressing area; 212, concave-convex structure; 220, support frame; 221, head; 2211, first receiving groove; 222, tail; 2221, second receiving groove; 230, motor; 240, battery; 250, button. Detailed Implementation
[0039] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.
[0040] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the corresponding device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, insertion, riveting, fusion welding, or snap-fit.
[0042] like Figures 1 to 4 As shown, in some embodiments of this utility model, the electric toothbrush 001 includes a brush head 100 and a handle 200. The brush head 100 is used to insert into the user's mouth and clean the teeth. The handle 200 is used for the user to hold.
[0043] like Figures 1 to 4 As shown, in some embodiments of the present invention, the brush head 100 includes bristles 110 for cleaning teeth.
[0044] like Figure 5 As shown, in some embodiments of this utility model, the brush handle 200 includes a housing 210, a support frame 220, a motor 230, a battery 240, and a button 250. The support frame is disposed within the housing 210, and the motor 230, battery 240, and button 250 are all mounted on the support frame 220.
[0045] In other embodiments of this utility model, those skilled in the art may omit the button 250 as needed, or set the button 250 as any feasible control component such as a touch switch, infrared sensor switch, or capacitive switch.
[0046] like Figures 5 to 8 As shown, in some embodiments of this utility model, the support frame 220 includes a head 221 and a tail 222 located on the side of the head 221 away from the brush head 100. A motor 230 is mounted on the head 221, and a battery 240 is mounted on the tail 222.
[0047] from Figure 6 As can be seen from the above, in some embodiments of this utility model, the head 221 is provided with a first receiving groove 2211 for accommodating the motor 230, so as to hold the motor 230 in the first receiving groove 2211. The tail 222 is provided with a second receiving groove 2221 for accommodating the battery 240, so as to hold the battery 240 in the second receiving groove 2221.
[0048] like Figure 5 As shown, the length direction of the motor 230 is parallel to the length direction of the head 221 to facilitate the installation and fixation between the motor 230 and the support frame 220.
[0049] It should be noted that in the description of this utility model, "parallel" does not refer to parallelism in a mathematical sense, but rather to parallelism in a physical sense. For example, the length direction of the motor 230 and the length direction of the head 221 may have manufacturing errors due to the production process, as well as installation errors.
[0050] like Figure 8 As shown, in some embodiments of this utility model, the head 221 is tilted relative to the tail 222 toward the brush head 100, so that the brush head 100 is tilted toward the bristles 110 relative to the portion of the brush handle 200 corresponding to the tail 222 (e.g., Figure 3 and Figure 5 (As shown), thus making it easier for users to hold the brush handle 200 while brushing their teeth.
[0051] Those skilled in the art will understand that by tilting the head 221 of the support frame 220 relative to the tail 222 toward the brush head 100, the brush head 100 is tilted relative to the portion of the handle 200 corresponding to the tail 222 toward the bristles 110, thereby making it easier for the user to hold the handle 200 while brushing, and improving user comfort. In short, the electric toothbrush 001 of this invention reduces the bending range of the user's wrist while brushing, improves the user's comfort in holding the handle 200, and enhances the cleaning effect on the user's teeth.
[0052] like Figure 8 As shown, in some embodiments of this utility model, the included angle β between the head 221 and the tail 222 is selected from any value from 1° to 10°. Specifically, the included angle β can be any feasible value such as 1°, 2°, 3.5°, 5°, 7°, 8.5°, 10°, etc.
[0053] Furthermore, the included angle β between the head 221 and the tail 222 is selected from any value between 2° and 3°. Specifically, the included angle β can be any feasible value such as 2°, 2.3°, 2.5°, 2.8°, or 3°.
[0054] Those skilled in the art will understand that by selecting an angle β between the head 221 and the tail 222 from any value between 1° and 10°, and particularly selecting an angle β between 2° and 3°, the bending of the user's wrist during brushing is reduced without significantly altering the user's previous brushing posture and habits. Therefore, the electric toothbrush 001 of this invention is more readily accepted by a wide range of users, especially ensuring user comfort upon initial use. Furthermore, the bending degree of the portion corresponding to the connection between the outer shell 210 and the head 221 and tail 222 is not significant, allowing the user's fingers and palm to naturally bend and conform to the outer shell 210 when holding this portion, resulting in good comfort.
[0055] like Figure 6 and Figure 8 As shown, in some embodiments of this utility model, the ratio of the length a of the head 221 to the length b of the tail 222 is selected from any value between 0.3 and 1. Specifically, this ratio can be any feasible value such as 0.3, 0.5, 0.7, 0.9, or 1.
[0056] Furthermore, the ratio of the length a of the head 221 to the length b of the tail 222 is selected from any value between 0.5 and 0.7. Specifically, this ratio can be any feasible value such as 0.5, 0.53, 0.58, 0.6, 0.65, 0.7, etc.
[0057] Those skilled in the art will understand that by making the ratio of the length a of the head 221 to the length b of the tail 222 selected from any value from 0.3 to 1, and in particular making the ratio of the length a of the head 221 to the length b of the tail 222 selected from any value from 0.5 to 0.7, it is ensured that the portion of the brush handle 200 corresponding to the tail 222 has sufficient length for the user to hold, thereby ensuring the user's comfort when holding the brush handle 200.
[0058] like Figure 5 As shown, in some embodiments of this utility model, the length from the top of the brush head 100 to the junction of the head 221 and the tail 222 is denoted as the inclined length L1, and the ratio of the inclined length L1 to the length b of the tail 222 is greater than or equal to 1.5. This ratio can be any feasible value such as 1.5, 1.6, 1.8, 1.9, 2, 2.5, 3, etc.
[0059] Those skilled in the art will understand that by making the ratio of the tilt length L1 of the brush head 100 to the length b of the tail 222 greater than or equal to 1.5, the bristles 110 can have a sufficient offset relative to the handle 200, thereby ensuring that the user's wrist does not bend too much when brushing their teeth.
[0060] like Figures 1 to 5As shown, in some embodiments of this utility model, a pressing area 211 aligned with the button 250 is provided on the side of the outer shell 210 near the bristles 110. This pressing area 211 is aligned with the head 221 towards the inside of the brush handle 200. The length from the pressing area 211 to the junction of the head 221 and the tail 222 is denoted as the pressing length L2. The ratio of the pressing length L2 to the length b of the tail 222 is selected from any value between 0.1 and 0.3. Specifically, this ratio can be any feasible value such as 0.1, 0.15, 0.2, 0.23, 0.28, or 0.3.
[0061] Those skilled in the art will understand that by making the ratio of the pressing length L2 corresponding to the pressing area 211 on the outer casing 210 to the length b of the tail 222 selected from any value between 0.1 and 0.3, the user can operate the pressing area 211 with the thumb of the same hand when holding the brush handle 200, thereby improving the user experience.
[0062] like Figures 1 to 3 As shown, in some embodiments of this utility model, the outer side of the outer shell 210 is provided with a concave-convex structure 212. Projected onto a plane perpendicular to the length direction of the tail portion 222, the brush head 100 and the concave-convex structure 212 are spaced apart.
[0063] Those skilled in the art will understand that by providing the protrusion and convex structure 212 on the outer side of the housing 210, sufficient friction is generated when the brush handle 200 is held by the user, preventing slippage and facilitating the user's grip on the brush handle 200. The projection onto a plane perpendicular to the length direction of the tail 222, by creating a gap between the brush head 100 and the protrusion and convex structure 212, prevents the protrusion and convex structure 212 from pressing on the user's thumb, thus improving the user experience.
[0064] from Figures 1 to 3 As can be seen from this, in some embodiments of this utility model, the concave-convex structure 212 is along... Figures 1 to 3 The strip-shaped convex and concave structure 212 extends vertically to facilitate the demolding of the outer shell 210.
[0065] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.
[0066] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage between two interconnected entities.
Claims
1. An electric toothbrush, characterized in that, include: Brush head, including bristles used for cleaning teeth; A brush handle includes a housing and a support frame disposed within the housing. The support frame includes a head and a tail located on the side of the head away from the brush head. The brush handle also includes a motor mounted on the head and a battery mounted on the tail. The motor is drivenly connected to the brush head. The head is tilted relative to the tail towards the brush head, so that the brush head is tilted relative to the portion of the brush handle corresponding to the tail towards the bristles, thereby making it easier for the user to hold the brush handle while brushing their teeth. The ratio of the length of the head to the length of the tail is selected from any value between 0.3 and 1.
2. The electric toothbrush according to claim 1, characterized in that, The angle between the head and the tail is selected from any value between 1° and 10°.
3. The electric toothbrush according to claim 2, characterized in that, The angle between the head and the tail is selected from any value between 2° and 3°.
4. The electric toothbrush according to claim 1, characterized in that, The ratio of the length of the head to the length of the tail is selected from any value between 0.5 and 0.
7.
5. The electric toothbrush according to claim 1, characterized in that, The length from the tip of the brush head to the junction of the head and the tail is denoted as the inclination length. The ratio of the inclined length to the length of the tail is greater than or equal to 1.
5.
6. The electric toothbrush according to claim 1, characterized in that, The brush handle also includes a button, and a pressing area aligned with the button is provided on the side of the housing near the bristles; The pressing area is aligned with the head, facing the inside of the brush handle.
7. The electric toothbrush according to claim 6, characterized in that, The length from the pressing area to the junction of the head and the tail is denoted as the pressing length. The ratio of the pressing length to the tail length is selected from any value between 0.1 and 0.
3.
8. The electric toothbrush according to any one of claims 1 to 7, characterized in that, The length direction of the motor is parallel to the length direction of the head.
9. The electric toothbrush according to any one of claims 1 to 7, characterized in that, The outer side of the outer shell is provided with a concave-convex structure; The brush head and the concave-convex structure are spaced apart when projected onto a plane perpendicular to the length direction of the tail.