Class / Patent application number | Description | Number of patent applications / Date published |
381397000 | Cooling feature | 21 |
20080304694 | Speaker - A speaker includes: a heat sink disposed at the front of a bobbin; and a coupler disposed between the front of the heat sink and the rear of a diaphragm, wherein the heat sink includes: a base portion having an outer circumferential wall and disposed inside the bobbin; and a flange portion extending axially outwardly from the forefront of the outer circumferential wall and having its rear face disposed in contact with the front of the bobbin, and the coupler includes: a diaphragm supporting portion disposed at the rear of the diaphragm; and inner and outer annular walls disposed at the diaphragm supporting portion, and wherein the heat sink is connected to the coupler such that the base portion and the flange portion of the heat sink are connected respectively to the inner annular wall and the outer annular wall of the coupler. | 12-11-2008 |
20090046887 | Cooling arrangement for voice coil of speaker - A cooling arrangement for voice coil of speaker is disclosed to include a first bearing cup, a second bearing cup inserted into a top opening of the first bearing cup with a top flange thereof stopped at the top side of the first bearing cup to support a voice coil inside the first bewaring cup, and a conical outer holding down cup sleeved onto the first bearing cup to hold down a damper on a bottom flange of the first bearing cup and having a top edge bonded to a cone paper. | 02-19-2009 |
20090310813 | INTERCHANGEABLE MAGNET LOUDSPEAKER - A moving coil loudspeaker has an interchangeable magnet assembly with a plurality of interchangeable magnet segments configured to be circumferentially disposed about a voice coil within the loudspeaker. Heat sink members can be arranged in between the magnet segments to absorb excess heat generated during operation of the loud speaker. In one embodiment, the magnet assembly has at least one annular magnetic member made up of the plurality of magnet segments, a plurality of heat sink members disposed in between the magnet segments, an annular first plate adjacent a first side of the annular magnetic member, and a yoke member having a second plate adjacent a second side of the annular magnetic member and a central cylindrical portion configured to pass through a central opening in the annular magnetic member. | 12-17-2009 |
20100092023 | SPEAKER MOTOR AND SPEAKER - A diaphragm for a speaker includes two portions. The first portion is made of metallic material for producing a high frequency tone. The second portion is made of a non-metallic material for producing a low frequency tone. The first portion is joined at a first peripheral edge to a voice coil while a second peripheral edge is joined at a first peripheral edge of the second portion to form the diaphragm. | 04-15-2010 |
20100158305 | LOUDSPEAKER - A loudspeaker includes frame, diaphragm whose outer rim is supported by this frame, voice coil unit connected to this diaphragm, magnetic circuit where voice coil of this voice coil unit is movably disposed in its magnetic gap, and first edge member and second edge member for supporting voice coil unit by frame. Voice coil unit is supported at two points at a predetermined interval to the side of magnetic gap from a part where diaphragm is connected. First edge member and second edge member include heat-resistant connectors that allow air to pass through, and ring edges and made of a resilient material connected to these connectors. Edge of first edge member or edge of second edge member protrudes toward diaphragm and the other edge protrudes toward magnetic circuit. | 06-24-2010 |
20100215206 | AUDIO SPEAKERS - An audio speaker has at least one transducer for converting electrical signals into mechanical motion. There is a planar sound producing structure that has a first face and a second face. A mechanical connection connects the at least one transducer to the sound producing structure, such that mechanical motion produced by the at least one transducer induces the sound producing structure to vibrate and produces sound from the first face and the second face. A deflector is interposed between the at least one transducer and the sound producing structure. The deflector is adjacent to the second face of the sound producing structure and reflects the produced sound from the second face of the sound producing structure to a listening area forward of the first face. | 08-26-2010 |
20100316247 | LOUDSPEAKER AND ALARM WITH LUMINOUS ELEMENT - A loudspeaker has an alarm and a luminous element, these being an improvement upon exiting loudspeakers having luminous elements. The luminous element is an illuminating lamp. A radiative cooling fin is mounted near the illuminating lamp. The use of radiator cooling firework permits a larger power light to be selected as the luminous element. This makes the loudspeaker capable of functioning as a substitute light source within an area. Also, the assembly employs an alarm with the loudspeaker. The brighter light emitted by the illuminating lamp on each loudspeaker provides better illumination. The lamp may also flash according to pre-programmed directions for the purpose of indicating a path and thereby helping people to escape from danger. Further, where the external power source fails, the loudspeaker assembly has a built-in emergency power source, ensuring that the loudspeaker and the illuminating lamp can still work normally. | 12-16-2010 |
20100316248 | SELF-COOLING LOUDSPEAKER - An improved self-cooling loudspeaker of the electrodynamic type, formed by a magnetic circuit includes a cylindrical permanent magnet ( | 12-16-2010 |
20110026757 | ACOUSTIC CONVERTER DIAPHRAGM, AND ACOUSTIC CONVERTER - A diaphragm for acoustic converter includes a base and a damping layer formed on one surface or both surfaces of the base. The damping layer includes a particle having a heat dissipating function, and has detachability with respect to the base. | 02-03-2011 |
20110085694 | ULTRA-THIN SPEAKER - An ultra-thin speaker includes a metal upper casing, and a metal lower casing corresponding to the metal upper casing and capable of covering a vibrating membrane, a support frame, a magnet and a yoke between two corresponding internal surfaces of the metal upper and lower casings and forming a contact surface with the yoke, such that after the yoke conducts heat of a heat source to the metal lower casing, the heat is conducted to the metal upper casing through a connection and a contact of the metal upper and lower casings to increase a heat dissipating area, so as to overcome the heat dissipation problem and minimize the overall thickness of the speaker. | 04-14-2011 |
20110188697 | Flat thin dynamic speaker - A flat thin dynamic speaker which includes a motor unit, a suspension unit, a radiating unit and a frame arranged in such a manner that the motor unit and the suspension unit are at the same plane while the radiating unit is on top of the motor unit such that the thickness of the speaker assembly is reduced while the performance of the speaker assembly is maintained or even improved. Also, the speaker can be made into a quadrangular, polygon or a spherical structure. The speaker further has a surround at a level lower than the radiating unit without utilizing the radiating surface of the radiating unit such as a maximized radiating surface is provided, and includes a dual side voice-coil actuation to the radiator unit, thereby providing a slim and flat speaker assembly with high power output. | 08-04-2011 |
20110206231 | ELECTROMAGNETIC CONVERTER - An electromagnetic converter includes a magnetic circuit having permanent magnets, a lower frame for fixing magnetic pole faces of these permanent magnets thereto, an upper frame having an opening formed therein on a side of the other magnetic pole faces of the permanent magnets and plates fixed to the other magnetic pole faces, and a diaphragm having a voice coil pattern arranged on side portions thereof in a direction of the length thereof and on a top portion thereof in a direction of the width thereof. Protruding portions join between these side portions. The periphery of the top portion is joined to the periphery of the opening of the upper frame via an upper gasket. A flange at the edges of the four side portions is joined to an inner surface of the upper frame, i.e., an inner portion of the magnetic circuit via a lower gasket. | 08-25-2011 |
20110243364 | Structure of loudspeaker for reducing thickness and mounting depth - A structure of a loudspeaker is designed to decrease a thickness or height thereof, thereby reducing a mounting depth of the loudspeaker on a mounting panel or wall. The loudspeaker includes a speaker frame, a diaphragm connected to the speaker frame in a manner capable of vibration, a voice coil connected to the diaphragm through a coil bobbin to receive an electric signal to vibrate the diaphragm, a spider connected to the speaker frame and to the diaphragm for supporting the diaphragm and the voice coil in a flexible manner, a magnetic assembly including a top plate, a permanent magnet and a pole piece for creating a magnetic circuit for interaction with the voice coil inserted in an air gap, and a plurality of cut-outs formed on a top of the magnetic assembly at an outside thereof to receive therein corresponding suspension elements of the spider. | 10-06-2011 |
20120237077 | Opposing Dual-Vented Woofer System - Described is a vented speaker driver assembly utilizing a speaker driver having a pole piece that defines therein a vent that is not covered by a dust cap. The frame of the speaker driver is configured to be mounted to a structure's surface such that the pole piece of the driver is located within the structure's interior space. The vented speaker driver is configured to be utilized in a back-to-back vented driver assembly wherein the sound of more than one speaker driver is achieved in a footprint of only one driver and with minimized generation of physical vibrations from the assembly. | 09-20-2012 |
20130089231 | SPEAKER MAGNET THERMAL MANAGEMENT - In one embodiment, a mobile device including a magnet unit that is thermally coupled to the heat sink portion of a housing of the mobile device is disclosed. The mobile device comprises a speaker driver that includes a magnet unit, a housing having a heat sink portion that is made of a material having a high thermal conductivity, and a thermal component. The heat sink portion has a first face that is coupled to the speaker driver and a second face that is exposed to the exterior of the mobile device. The thermal component binds the speaker driver to the first face of the heat sink portion to create a cooling path from the magnet unit to the exterior of the mobile device. Other embodiments are also described. | 04-11-2013 |
20130108099 | LOUDSPEAKER HAVING IMPROVED COOLING SYSTEM INTEGRALLY FORMED ON SPEAKER FRAME | 05-02-2013 |
20130294639 | LOUDSPEAKER APPARATUS - There is provided a loudspeaker apparatus which has a diaphragm and a magnet system for driving the diaphragm. The loudspeaker apparatus also has a light source and a cooling device (K) having at least one cooling unit for cooling the at least one light source. The light source is thermally coupled to the first cooling unit. The first cooling unit with the at least one light source is arranged in front of the diaphragm. The outside of the diaphragm can have light reflecting properties. | 11-07-2013 |
20140270325 | Method for forming synthetic jet actuator and components thereof through insert molding - A method for making a diaphragm is provided. The method includes providing a first ring ( | 09-18-2014 |
20140348373 | HEAT DISSIPATION DEVICE FOR MOVING-COIL LOUDSPEAKER - A heat dissipation device for a moving-coil loudspeaker, comprising: a thermally conductive pad, a thermally conductive bar, and a heat sink, the thermally conductive pad, the thermally conductive bar and the heat sink being integrally mounted at an axially central portion of the loudspeaker; the thermally conductive bar is axially connected to the thermally conductive pad and the heat sink at top and bottom thereof respectively, the thermally conductive bar is axially provided with a through hole or a groove at a circle center thereof, the heat sink is axially provided with a through hole in which a screw is tapped, a central groove at a top end of the thermally conductive bar is aligned with a groove on the thermally conductive pad to form a straight line groove such that a communication passage leading to an exterior of the loudspeaker is for the electronic components on a circuit board. | 11-27-2014 |
20150023544 | VIBRATION SYSTEM AND SPEAKER USING THE SAME - A vibration system is disclosed. The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate. The diaphragm includes a fixing part for fixing the voice coil, and a heat sink is disposed on and fixed to the fixing part. A speaker using the vibration system is also disclosed. By disposing the heat sink on the diaphragm, heat can be dissipated from the voice coil effectively to ensure stability of the speaker. | 01-22-2015 |
20160163445 | Compact Electrical Device and Electrodynamic Loudspeaker, Electric Motor, Stirring Device and Adjustable Clutch Based Thereon - An electrical device comprises a stack of electric elements, each comprising: an electrically insulating substrate, for instance of plastic, and at least one electrically conductive track connected to said substrate; the end zones of each of which tracks have terminals either for connection to a source of electrical energy, whereby electric current is conducted through each track during operation, or connection to a device for taking off electric current generated by magnetic induction in the track; which electric elements are connected mechanically to each other such that the device is unitary. | 06-09-2016 |