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JP-2026076108-A - electric toothbrush

JP2026076108AJP 2026076108 AJP2026076108 AJP 2026076108AJP-2026076108-A

Abstract

[Problem] To provide an electric toothbrush that transmits a relatively large amount of motor vibration to the brush head, thereby reducing energy consumption. [Solution] The electric toothbrush of this application includes a support frame (1) having a hollow portion (13), a drive frame (2) elastically connected to the support frame (1), the drive frame (2) being positioned in the hollow portion (13) and spaced apart from the support frame (1), and having a tenon connecting member (21) for connecting a brush head, and a motor (5) provided on the drive frame (2), the operation of which the motor (5) can drive the drive frame (2) to swing or vibrate relative to the support frame (1), thereby the tenon connecting member (21) can drive the brush head to swing or vibrate. [Selection Diagram] Figure 2

Inventors

  • 蔡延鐘
  • 彭偉兵
  • 王聿麗

Assignees

  • 慈渓賽嘉電子有限公司

Dates

Publication Date
20260511
Application Date
20250804
Priority Date
20241023

Claims (11)

  1. A support frame (1) having a hollow section (13), A drive frame (2) elastically connected to the support frame (1), the drive frame (2) is positioned in the hollow portion (13), spaced apart from the support frame (1), and has a tenon connecting member (21) for connecting a brush head, An electric toothbrush characterized by including a motor (5) provided on the drive frame (2), the motor (5) being able to drive the drive frame (2) to swing or vibrate relative to the support frame (1) by operation, thereby allowing the tenon connecting member (21) to drive the brush head to swing or vibrate.
  2. The electric toothbrush according to claim 1, characterized in that the drive frame (2) and the support frame (1) are connected by a connecting portion (25) and an elastic portion (24), the connecting portion (25) is connected to the tenon connecting member (21), and in the left-right direction (R) of the electric toothbrush, the elastic portion (24) is arranged on both the left and right sides of the connecting portion (25).
  3. The electric toothbrush according to claim 2, characterized in that the elastic portion (24) is in the form of a flake, and the thickness of the elastic portion (24) along the front-to-back direction (F) of the electric toothbrush is greater than the thickness along the left-to-right direction (R) of the electric toothbrush.
  4. The electric toothbrush further includes a tenon (7), the tenon (7) extending from the front side in the vertical direction (A) of the body (100) of the electric toothbrush, the tenon (7) is used to connect the brush head, and the tenon connecting member (21) is connected to the tenon (7). The electric toothbrush according to claim 2, characterized in that, in the vertical direction (A) of the electric toothbrush, the elastic part (24) is positioned in front of the motor (5), and the tenon (7) is positioned in front of the elastic part (24).
  5. The electric toothbrush according to claim 1, characterized in that a vibration damping member (6) is provided in the gap between the drive frame (2) and the support frame (1), the vibration damping member (6) is elastic, and the vibration damping member (6) can mitigate the impact on the support frame (1) caused by the drive frame (2) when the drive frame (2) swings or vibrates.
  6. The electric toothbrush according to claim 5, characterized in that at least a portion of the vibration damping member (6) is arranged on both the left and right sides of the drive frame (2) in the left-right direction (R) of the electric toothbrush.
  7. The electric toothbrush according to claim 1, characterized in that a weight (3) is connected to the drive frame (2).
  8. The electric toothbrush according to claim 7, characterized in that an eccentric block (51) is connected to the output shaft of the motor (5), and the motor (5) rotates the eccentric block (51) to cause the drive frame (2) to oscillate or vibrate, and in the vertical direction (A) of the main body (100) of the electric toothbrush, the eccentric block (51) is positioned below the motor (5), and the weight (3) is positioned above the motor (5).
  9. The electric toothbrush according to claim 1, characterized in that a waterproof ring mounting hole (15) is provided at the tip of the support frame (1), and a waterproof ring (14) is attached to the waterproof ring mounting hole (15).
  10. The electric toothbrush according to claim 2, characterized in that the tenon connecting member (21), the connecting portion (25), the elastic portion (24), and the support frame (1) are integrally molded.
  11. The electric toothbrush according to claim 1, characterized in that the materials of the support frame (1) and the drive frame (2) have a tensile strength of 90 to 260 MPa and a flexural modulus of 3500 to 8000 MPa.

Description

This application relates to the technical field of oral hygiene, and more particularly to electric toothbrushes. Electric toothbrushes generate high-frequency vibrations in the brush head through the high-speed rotation or vibration of the motor core, instantly breaking down toothpaste into fine bubbles and cleaning deep between teeth. Simultaneously, the vibrating action of the brush bristles promotes blood circulation in the mouth and provides a massaging effect on the gum tissue. Conventional technology, with its integrated eccentric vibration motor drive mechanism, suffers from a large volume, complex structure, high cost, strong vibration in the brush handle, high noise levels, significant damping of vibration output to the brush head, and high energy consumption. To overcome or mitigate the problems described above in the prior art, this application aims to propose an electric toothbrush that transmits a relatively large amount of motor vibration to the brush head, thereby reducing energy consumption. This application is, A support frame having a hollow section, A drive frame elastically connected to the support frame, the drive frame being positioned in the hollow portion and spaced apart from the support frame, and comprising a tenon connecting member for connecting a brush head, We propose an electric toothbrush that includes a motor provided on the drive frame, the motor's operation which drives the drive frame to swing or vibrate relative to the support frame, thereby driving the tenon connecting member to swing or vibrate the brush head. In at least one possible embodiment, the drive frame and the support frame are connected by a connecting portion and an elastic portion, the connecting portion being connected to the tenon connecting member, and the elastic portion being positioned on both the left and right sides of the connecting portion in the left-right direction of the electric toothbrush. In at least one possible embodiment, the elastic portion is flake-shaped, and the thickness of the elastic portion in the front-to-back direction of the electric toothbrush is greater than the thickness in the left-to-right direction of the electric toothbrush. In at least one possible embodiment, the electric toothbrush further includes a tenon, the tenon extending from the vertical front of the body of the electric toothbrush, the tenon being used to connect a brush head, and the tenon connecting member being connected to the tenon. In the vertical direction of the electric toothbrush, the elastic part is positioned in front of the motor, and the tenon is positioned in front of the elastic part. In at least one possible embodiment, a vibration damping member is provided in the gap between the drive frame and the support frame, the vibration damping member being elastic, and capable of mitigating the impact on the support frame by the drive frame when the drive frame swings or vibrates. In at least one possible embodiment, at least a portion of the vibration damping member is positioned on both the left and right sides of the drive frame in the left-right direction of the electric toothbrush. In at least one possible embodiment, a weight is connected to the drive frame. In at least one possible embodiment, an eccentric block is connected to the output shaft of the motor, and the motor rotates the eccentric block, causing the drive frame to oscillate or vibrate. In the vertical direction of the electric toothbrush body, the eccentric block is positioned below the motor, and the weight is positioned above the motor. In at least one possible embodiment, a waterproof ring mounting hole is provided at the tip of the support frame, and a waterproof ring is attached to the waterproof ring mounting hole. In at least one possible embodiment, the tenon connecting member, the connecting portion, the elastic portion, and the support frame are integrally molded. In at least one possible embodiment, the material of the support frame and the drive frame has a tensile strength of 90 to 260 MPa and a flexural modulus of 3500 to 8000 MPa. By employing the above technical solution, the motor drives the drive frame to oscillate or vibrate relative to the support frame 1, thereby driving the tenon connecting member to oscillate or vibrate the brush head. This reduces the transmission of vibration to the brush handle, lowers energy consumption, and improves the brushing effect. This shows an exploded perspective view of a partial structure of an electric toothbrush according to the first embodiment of this application.This shows a cross-sectional view of the brush handle of an electric toothbrush according to the first embodiment of this application.This shows a cross-sectional view of the brush handle of an electric toothbrush according to the first embodiment of this application.This shows a front view of the support frame and drive frame of an electric toothbrush according to the first embodiment of this application.This d