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US 11,895,475 B2Granted
Speaker with improved cooling
AssigneeAlps Alpine Co., Ltd.
InventorRyo Ito
Life of this patent
Estimating the term…
Abstract
A rear side of a vibration part of a speaker is covered by a cover member, and a duct is provided at the cover member. The cover member has a recessed portion, and an air flow path is formed inside the recessed portion. A circuit part is mounted on an outer surface of the cover member, and a heat sink provided in the air flow path is connected to the circuit part to allow heat conduction. Due to vibration of the vibration part, an airflow in the air flow path is accelerated and thus the effect of dissipating heat from the heat sink is increased.
Claims15
A speaker comprising:
- a vibration part that includes a diaphragm and a voice coil;
- a magnetic circuit part that applies a magnetic field to the voice coil;
- and
- a supporting body that supports the vibration part and the magnetic circuit part,
- wherein the supporting body includes a cover member that covers the vibration part from one of vibration directions of the vibration part, and a duct that causes a space between the vibration part and the cover member to communicate with outside space situated outward of the cover member,
- wherein an air flow path is formed at an interval between the vibration part and the cover member in the vibration directions that is wider than an interval at another location in the space between the vibration part and the cover member, and the air flow path communicates with an inside of the duct, and
- wherein a circuit part provided on an outer side of the cover member and a heat sink are connected to each other, and at least a part of the heat sink is exposed in the air flow path formed in the wider interval to allow heat conduction.
4 more elements
A speaker comprising:
- a vibration part that includes a diaphragm and a voice coil;
- a magnetic circuit part that applies a magnetic field to the voice coil;
- and
- a supporting body that supports the vibration part and the magnetic circuit part,
- wherein the supporting body includes a cover member that covers the vibration part from one of vibration directions of the vibration part, and a duct that causes a space between the vibration part and the cover member to communicate with outside space situated outward of the cover member,
- wherein at least a part of the cover member has a recessed portion recessed in a direction away from the vibration part, and an interval between the vibration part and the recessed portion in the vibration directions is wider than an interval at another location in the space between the vibration part and the cover member,
- wherein an air flow path is formed in an inside of the recessed portion, and the air flow path communicates with an inside of the duct, and
- wherein a circuit part provided on an outer side of the cover member and a heat sink are connected to each other, and at least a part of the heat sink is exposed in the air flow path formed in the recessed portion to allow heat conduction.
5 more elements
Dependencies are inferred from the claim text.