Vibration generating device and electronic device
In accordance with one aspect of the present disclosure, a vibration generating device includes a protruding part; a base provided with the protruding part and formed of a magnetic body; an annular coil surrounding the protruding part; a plate facing the base and formed of a magnetic body; and an elastic member supporting the plate with respect to the base. The plate and the base constitute magnetic circuit.
1. A vibration generating device comprising:
a protruding part;
a base formed with a magnetic body;
an annular coil surrounding the protruding part;
a plate facing the base and formed with a magnetic body; and
an elastic member supporting the plate with respect to the base,
wherein
the protruding part is provided at the base, and
the plate and the base form a magnetic circuit, and
a magnetic gap is provided between a protruding part and the plate, and
the elastic member is arranged in the magnetic gap.
2. The vibration generating device according to claim 1 , wherein the protruding part is a magnetic pole part.
3. The vibration generating device according to claim 1 , wherein
the base includes bottom plate and side wall part,
a part of the side wall part is recessed,
a path for energizing the coil passes through the part of the side wall part.
4. The vibration generating device according to claim 3 , comprising a flexible substrate arranged at the bottom part, wherein
a terminal is formed at the flexible substrate, and
a conductive wire leading from the coil connects to the terminal.
5. The vibration generating device according to claim 4 , wherein
the terminal connects to the conductive wire leading from outside.
6. The vibration generating device according to claim 1 , wherein
the conductive wire leading from the coil is arranged between the coil and base.
7. The vibration generating device according to claim 6 , comprising insulating
member arranged between the coil and the base, wherein
the conductive wire leading from the coil is insulated with the insulating member.
8. The vibration generating device according to claim 1 , wherein
the elastic member includes a magnetic material, and
the elastic member is a member forming the magnetic circuit.
9. An electronic device comprising:
a housing;
a contact member attached to the housing; and
a vibration generating device according to claim 1 ,
wherein
the vibration generating device is coupled or fixed to the housing or the contact member directly or through other member.
10. A vibration generating device comprising:
a protruding part;
a base formed with a magnetic body;
an annular coil surrounding the protruding part;
a plate facing the base and formed with a magnetic body; and
an elastic member is arranged between the plate and the base,
wherein
the protruding part is provided at the base, and
the plate and the base form a magnetic circuit, and
a magnetic gap is provided between a protruding part and the plate, and
the elastic member is arranged in the magnetic gap.
11. The vibration generating device according to claim 10 , wherein the protruding part is a magnetic pole part.
12. The vibration generating device according to claim 10 , wherein
the base includes a bottom plate and side wall part,
a part of the side wall part is recessed,
a path for energizing the coil passes through the part of the side wall part.
13. The vibration generating device according to claim 10 , comprising a flexible
substrate arranged at the bottom part, wherein
a terminal is formed at the flexible substrate, and
a conductive wire leading from the coil connects to the terminal.
14. The vibration generating device according to claim 13 , wherein
the terminal connects to the conductive wire leading from outside.
15. The vibration generating device according to claim 10 , wherein
the conductive wire leading from the coil is arranged between the coil and base.
16. The vibration generating device according to claim 15 , comprising insulating
member arranged between the coil and the base, wherein
the conductive wire leading from the coil is insulated with the insulating member.
17. The vibration generating device according to claim 10 , wherein
the elastic member includes a magnetic material, and
the elastic member is a member forming the magnetic circuit.
18. An electronic device comprising:
a housing;
a contact member attached to the housing; and
a vibration generating device according to claim 10 ,
wherein
the vibration generating device is coupled or fixed to the housing or the contact member directly or through other member.