H04R2400/07

Flat transducer for surface actuation

A transducer assembly including a stiffener plate having a first side and a second side; a voice coil coupled to the second side of the stiffener plate; a magnet assembly positioned along the second side of the stiffener, the magnet assembly operable to produce a magnetic field that causes a movement of the magnet assembly relative to the voice coil; and a spring suspending the magnet assembly from the stiffener plate such that the movement of the magnet assembly drives a movement of the stiffener plate.

Screen Sounding Device
20200396544 · 2020-12-17 ·

The present invention discloses a screen sounding device, including a screen, a frame and an electromagnetic driving module. The electromagnetic driving module includes an electromagnet, a magnetic conduction base and a magnetic conduction covering plate. The strength of the driving force can be controlled by changing the magnitude of the electric current flowing into the coil, which can provide a greater driving force to obtain a better sound effect. In addition, the driving module of the present invention has a simple structure and can be easily installed; the vibration amplitude of the screen is small, and the sounding device can be made thinner and smaller; compared with the traditional speaker and receiver, the structure such as the diaphragm is omitted, and the manufacturing cost is lower.

FLAT TRANSDUCER FOR SURFACE ACTUATION

A transducer assembly including a stiffener plate having a first side and a second side; a voice coil coupled to the second side of the stiffener plate; a magnet assembly positioned along the second side of the stiffener, the magnet assembly operable to produce a magnetic field that causes a movement of the magnet assembly relative to the voice coil; and a spring suspending the magnet assembly from the stiffener plate such that the movement of the magnet assembly drives a movement of the stiffener plate.

Speaker frame and speaker having the same

A speaker frame, including: a vibration support portion supporting a vibrating body of a speaker; a magnet support portion arranged inside of said vibration support portion and supporting magnetic circuit portion of said speaker; and a plurality of connection beams connecting said vibration support portion and said magnet support portion, wherein the vibration support portion and the magnet support portion have a circular ring shape having the same major axis length and minor axis length, said plurality of connection beams are arranged radially centering on a central axis from said magnet support portion to said vibration support portion, the central axis being parallel to a direction of an acoustic radiation, and a length of one of said connection beams and a length of another connection beams are different from each other.

Reinforced actuators for distributed mode loudspeakers

An actuator, attached to a panel extending in a plane, includes a frame and a magnetic circuit assembly that includes a magnet and a voice coil, the magnet and voice coil being moveable relative to each other during operation of the actuator along an axis perpendicular to the panel's plane. The actuator further includes one or more suspension members attaching the frame to a first component of the magnetic circuit assembly. Each suspension member includes a segment attaching the suspension member to the frame at an attachment point and a first arm extending away from the attachment point to an end attached to the first component of the magnetic circuit assembly. During operation of the actuator the first arm of the one or more suspension members flex to accommodate axial displacements of the magnet relative to the voice coil.

Multi-suspension element for transducers
10827272 · 2020-11-03 · ·

A suspension component may be used within a system for isolating vibrations produced by an electrical component. A body of the suspension component may be formed from a single piece of planar material. A suspension component includes a plurality of flexures. The plurality of flexures includes a first set of flexures configured to suspend a first sub-assembly of a transducer from support brackets, a second set of flexures configured to suspend a second sub-assembly of the transducer from the first sub-assembly, and a third set of flexures configured to suspend the second sub-assembly from the support brackets.

Multi-degree of freedom transducer vibration isolation system

A transducer system isolates vibrations produced by a transducer. The transducer system comprises the transducer and a vibration isolation system. The transducer can produce vibrations and is configured to be coupled to a device. The transducer includes a first sub-assembly including a coil assembly and a second sub-assembly including one or more magnets. The vibration isolation system is configured to isolate vibrations produced by the transducer from the device. The vibration isolation system includes a plurality of support brackets, and a suspension component including a plurality of flexures. The plurality of flexures includes a first set of flexures configured to suspend the first sub-assembly from the support brackets, a second set of flexures configured to suspend the second sub-assembly from the first sub-assembly, and a third set of flexures configured to suspend the second sub-assembly from the support brackets.

ELECTRONIC DEVICE AND CONTROL METHOD THEREOF
20200314554 · 2020-10-01 ·

An electronic device is provided, including a display screen; actuators configured to drive the display screen to vibrate; and a controller configured to control at least one of the actuators to operate and drive the display screen to produce a sound through vibration.

Speaker
20200314576 · 2020-10-01 ·

The present invention discloses a speaker having a frame, a vibrating system and a magnetic circuit system both fixed on the frame. The magnetic circuit system having a yoke fixed on the frame. The speaker further includes a suspension having a first fixing portion fixed with the frame. The first fixing portion includes a main body portion located in the middle of the first fixing portion and a welding pad portion formed by bending from two opposite ends of the main body portion toward a direction away from both the main body portion and the yoke. The frame includes a first surface connected to the first fixing portion and an avoiding portion formed by recessing from the first surface toward a direction away from the yoke. The welding pad portion is accommodated in the avoiding portion. A total height of the spealer is reduced.

VIBRATION OUTPUT DEVICE AND PORTABLE ELECTRONIC DEVICE FOR OUTPUTTING VIBRATION
20200274412 · 2020-08-27 ·

According to an exemplary embodiment of the present invention, there are provided a vibration output device and a portable electronic device, which outputs vibration. An exemplary embodiment of the present invention provides a vibration output device, including: a magnetic circuit generating vibration; a yoke part contacting an upper surface of the magnetic circuit; an elastic member contacting with at least a part of an upper surface of the yoke part and performing vibratory motion; a housing having an opened upper surface, an opened lower surface and an internal space formed by closed lateral surfaces; a coil positioned inside the housing and receiving an alternating-current signal provided from an outside; and a vibration plate contacting at least a part of the upper surface of the yoke part and outputting vibration to the outside according to vibration of the yoke part.