Plane voice coil loudspeaker and plane voice coil loudspeaker module

Abstract

A plane voice coil loudspeaker comprises a circuit board matrix, one or more voice coils arranged on the two corresponding surfaces of the circuit board matrix, and one or more magnet sets. Each magnet set comprises one or more magnets. A first magnet field direction set, a second magnet field direction set and a third magnet field direction set are formed in the first direction of each magnet set in sequence, wherein the magnet field direction of the first magnet field direction set is perpendicular to the first direction and the third direction and is far away from voice coils, the magnet field direction of the second magnet field direction set is perpendicular to the second direction and the third direction and faces the third magnet field direction set, the magnet field direction of the third magnet field direction set is perpendicular to a plane formed by the first direction and the third direction, an included angle of 180 degrees is formed between the magnet field direction of the third magnet field direction set and the magnet field direction of the first magnet field direction set, and the first direction, the second direction and the third direction are perpendicular to one another. The invention further provides a plane voice coil loudspeaker module. The magnet fields can be evenly distributed on the plane voice coils through the plane voice coil loudspeaker structure.

Description

technical field [0001] The invention relates to a planar voice coil loudspeaker, in particular to a planar voice coil loudspeaker and a planar voice coil loudspeaker module in which the diaphragm of a circuit board can be planarized to provide the voice coil on the upper or lower plane. Background technique [0002] Existing planar voice coil speakers, such as patent application number TW 201116076, mainly include a circuit board diaphragm, a voice coil is arranged on the circuit board diaphragm, and a positioning diaphragm is arranged on the circuit board diaphragm, and the positioning diaphragm A positioning piece is arranged on the upper and lower sides of the circle, and a guiding disk is respectively arranged on the upper and lower ends of the two positioning pieces, and some magnets are arranged inside the two guiding disks, and a guiding disk is arranged on each magnet. [0003] Common electro-acoustic products on the market are mainly dynamic speakers. However, such...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing planar voice coil loudspeaker uses the circuit board diaphragm to reduce the deformation caused by vibration, and resists the resistance of the air and the rigid planar voice coil of the circuit board diaphragm itself. The uneven magnetic force, as well as many magnetic flux leakage phenomena in the design of the upper and lower inner and outer magnets, cannot effectively use the magnetic force and function of the magnet, so it also causes the magnetic circuit to be bulky and heavy, causing some application restrictions

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