RU-2025122282-A - ELECTRIC TOOTHBRUSH HEAD

Inventors

• ХАНЬ, Чжунпин
• ТАНЬ, Чэншэнь
• ЦЯНЬ, Дундун
• ВАН, Сюэфэн
• ПЭН, Цзюнь

Assignees

• БИКСДО (ЭС ЭЙЧ) ХЕЛСКЭА ТЕКНОЛОДЖИ КО., ЛТД.
• ГУАНДУН БИКСДО ХЕЛС ТЕКНОЛОДЖИ КО., ЛТД.

Dates

Publication Date

20260506

Application Date

20241106

Priority Date

20231120

Claims (20)

1. 1. A head of an electric toothbrush comprising:
2. brush head housing;
3. a powered component, wherein the powered component is located within the brush head housing; and
4. a shaft coupling element, wherein the shaft coupling element is located inside the brush head housing and is configured to be in coupling connection with the motor shaft of the electric toothbrush;
5. the coupling element with the shaft is provided with a first electrical connector and a second electrical connector, wherein
6. the first electrical connector has one end having a conductive connection with the powered component and the other end having a conductive connection with the power source component of the electric toothbrush;
7. the second electrical connector has one end having a conductive connection with the powered component and the other end having a conductive connection with the power source component of the electric toothbrush.
8. 2. The electric toothbrush head of claim 1, wherein the brush head housing comprises a bristle block and a brush head holder, the bristle block is mounted on the brush head holder, and the powered component is located in a location corresponding to the bristle block;
9. the brush head holder has a first cavity for insertion, the shaft coupling element is configured to be inserted into the first cavity for insertion and coupling with the brush head holder;
10. the coupling element with the shaft has a second cavity for insertion, the engine shaft is designed with the possibility of being inserted into the second cavity for insertion and connection with the coupling element with the shaft.
11. 3. The head of an electric toothbrush according to claim 2, in which the shaft engagement element is limited in the circumferential direction relative to the brush head holder by a first annular limiting mechanism, and the shaft engagement element is limited in the axial direction relative to the brush head holder by a first axial limiting mechanism.
12. 4. The head of the electric toothbrush according to claim 3, wherein the first annular limiting mechanism comprises a first annular limiting rib and a first annular limiting groove;
13. the first annular limiting rib and the first annular limiting groove are respectively located on the inner wall of the first cavity for insertion and the outer wall of the coupling element with the shaft.
14. 5. The head of an electric toothbrush according to claim 3 or 4, wherein the first annular limiting mechanism comprises a first axial limiting rib and a first axial limiting groove;
15. the first axial limiting rib and the first axial limiting groove are respectively located on the outer wall of the coupling element with the shaft and the inner wall of the first cavity for insertion.
16. 6. The head of an electric toothbrush according to claim 5, wherein the first axial limiting groove is a first annular groove, wherein the first annular groove is located on the inner wall of the first cavity for insertion, which is located near the opening, the first axial limiting rib is a first annular rib, wherein the first annular rib is located on the outer wall of the coupling element with the shaft and is designed with the possibility of an interference fit in the first annular groove.
17. 7. The head of the electric toothbrush according to claim 2, wherein the motor shaft is inserted into the second insertion cavity, wherein the motor shaft is limited in the circumferential direction relative to the shaft engagement member by a second annular limiting mechanism, and the motor shaft is limited in the axial direction relative to the shaft engagement member by a second axial limiting mechanism.
18. 8. The head of the electric toothbrush according to claim 7, wherein the second annular limiting mechanism comprises a second annular limiting stepped surface and a second annular limiting rib;
19. a second annular limiting stepped surface is formed on the motor shaft, a second annular limiting rib is located on the inner wall of the second insertion cavity, and the second annular limiting rib exerts pressure on the second annular limiting stepped surface so as to limit relative rotation around the circumference.
20. 9. The head of an electric toothbrush according to claim 7 or 8, in which the second axial limiting mechanism comprises a second axial limiting groove and a second axial limiting latch, the second axial limiting groove is formed on the motor shaft, and the second axial limiting latch is located on the shaft coupling element for achieving an axial position limiting relative to the second axial limiting groove.