Fixing device and voice coil motor using same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorChien-Feng Huang
Life of this patent
Estimating the term…
Abstract
A fixing device includes a stationary frame and a number of elongated resilient tabs. The stationary frame defines a central axis and includes four sidewalls for receiving a number of magnets. Each sidewall includes a receiving hole and at least one protrusion formed on each sidewall at a lower portion thereof. A slot is defined in each protrusion. The tabs correspond to the magnets. Each tab includes an engagement portion, an angled portion, and a contact portion. The angled portion is interconnected between the engagement portion and the contact portion. The engagement portions engage in the respective slots. The contact portions resiliently abut against the corresponding magnets. Each tab is configured to apply a force on the corresponding magnet in a direction toward the central axis.
Claims14
A fixing device comprising:
- a stationary frame defining a central axis and comprising four sidewalls for receiving a plurality of magnets, each sidewall having a receiving hole and at least one protrusion formed on each sidewall at a lower portion thereof, a slot defined in each protrusion;
- and
- a plurality of elongated resilient tabs corresponding to the magnets, each tab comprising an engagement portion, an angled portion, and a contact portion, the angled portion interconnected between the engagement portion and the contact portion, the engagement portions engaging in the respective slots, the contact portions resiliently abutting against the corresponding magnets, each tab configured to apply a force on the corresponding magnet in a direction toward the central axis.
A voice coil motor comprising:
- a plurality of magnets;
- a fixing device comprising:
- a stationary frame defining a central axis and comprising four sidewalls for receiving the magnets, each sidewall having a receiving hole and at least one protrusion formed on each sidewall at a lower portion thereof, a slot defined in each protrusion;
- and
- a plurality of elongated resilient tabs corresponding to the magnets, each tab comprising an engagement portion, an angled portion, and a contact portion, the angled portion interconnected between the engagement portion and the contact portion, the engagement portions engaging in the respective slots, the contact portions resiliently abutting against the corresponding magnets, each tab configured to apply a force on the corresponding magnet in a direction toward the central axis;
- a moveable frame received in the stationary frame;
- a coil wrapped around the moveable frame;
- an upper resilient plate attached to an upper side of the stationary frame and interconnecting the stationary frame and the moveable frame;
- and
- a lower resilient plate attached to a bottom side of the stationary frame and interconnecting the stationary frame and the moveable frame.
Dependencies are inferred from the claim text.