A vibrating diaphragm includes a diaphragm body and a suspension edge. The diaphragm body is made by acrylonitrile butadiene styrene materials. A surface of the diaphragm body is electroplated a layer of nanoscale materials. The suspension edge is made by room temperature vulcanized silicone rubber materials. The suspension edge is molded an outer periphery of the diaphragm body. The vibrating diaphragm can improve the high frequency effect of the speaker.

A speaker is provided in the present disclosure. The speaker includes a membrane, a voice coil connected to the membrane, and a solder pad formed on the membrane. The membrane includes a conductive silicone portion and a non-conductive silicone portion. The voice coil includes a coil portion for driving the membrane to vibrate, and a line lead portion led out from an end of the coil portion. The line led portion is connected to the solder pad, and the solder pad is formed on the conductive silicone portion of the membrane. The conductive silicone portion is connected to an input terminal of the speaker to receive an electric signal for driving the voice coil.

A microspeaker includes a frame and a diaphragm having length sides that are longer than its width sides. A magnet is positioned below the diaphragm. A yoke includes a base portion positioned below the magnet and sidewalls which extend from the base portion, the yoke sidewalls positioned only along a length dimension of the magnet. A voice coil includes an upper end attached to a bottom face of the diaphragm and a lower end positioned within a gap formed between the length dimension of the magnet and the yoke sidewalls. A first suspension member is attached to the length sides and the width sides of the diaphragm and the frame. The first suspension member is within a first plane. A second suspension member is attached to the lower end of the voice coil and the frame. The second suspension member is in a second plane different from the first plane.

A bracket assembly suitable for use with an electronic device is described. The bracket assembly may include a bracket body having a channel. The bracket assembly may further include a membrane embedded in the bracket body and designed to allow air, but not liquid (such as water), to pass through the membrane. The membrane may be at least partially surrounded by a membrane support molded to the membrane. The membrane and the membrane support may be disposed in a molding tool to receive a material used to mold the bracket body over the membrane and the membrane support. During the molding operation, the membrane support may act as a buffer to shield the membrane from temperature and pressure increases associated with the molding operation of the bracket body. The bracket assembly may improve the ability of the electronic device to prevent liquid ingress.

A speaker diaphragm includes: a vibrator; and a suspension adhered to an outer peripheral part of the vibrator and supporting the vibrator so that the vibrator can vibrate, at least part of the suspension including a top surface member constituting a top surface part of the suspension, a rear surface member constituting a rear surface part of the suspension, and an intermediate member between the top surface member and the rear surface member, these members being stacked, the intermediate member having a rigidity lower than that of at least one of the top surface member and the rear surface member, the top surface member having one or more first holes, the rear surface member having one or more second holes, and at least some of the first holes and second holes being dispose so as to overlap across the intermediate member in a direction in which the members are stacked.

An example composition includes a cloth, which has on each side thereof, a first waterproofing agent, a barrier which inhibits or prevents environmental degradation, and an elastomeric barrier including a second waterproofing agent. Another example composition includes a cloth with a phenolic resin coating having, on each side thereof, a first waterproofing agent, a barrier which inhibits or prevents environmental degradation, and an elastomeric barrier including a second waterproofing agent.

The present application relates to a transducer element (1) which comprises: a movable diaphragm (2, 2a, 2b) which has a border (4), a frame (5) to which the border (4) of the diaphragm (2, 2a, 2b) is attached, and a reinforcement element (10) which connects to one another a first sub-section of the frame (5) and a second sub-section of the frame (5) which lies opposite the first sub-section.

There are provided a speaker frame having a metallic suspension integrated therewith, the suspension being connected to a voice coil unit to transmit electrical signals thereto and supporting the voice coil unit to vibrate in place according to the electrical signals, and a speaker having the speaker frame. The speaker frame forms a casing of the speaker and including elements of the speaker creating sound according to the electrical signals. The metallic suspension may be integrated with the speaker frame by injection molding of a synthetic resin, and a process of installing the suspension in the speaker frame may be omitted in the assembly process of the speaker. Therefore, manufacturing time and costs of the speaker may be reduced.

An approaching vehicle warning speaker device includes a diaphragm that generates sound, an edge section joined to an outer edge of the diaphragm, and a frame supporting an outer periphery of the edge section. The diaphragm is made of a film containing polyimide. The edge section includes a base member made of fiber and rubber-containing waterproof layers provided on both sides of the base member.

A passive radiator structure includes an integrally formed diaphragm structure and a surround suspension. The diaphragm structure includes a diaphragm, a frame, and a web-like spider having a plurality of suspension arms integrally extended to between the diaphragm and the frame. The surround suspension has a radially inner gluing edge adhered to a radially inner location of the diaphragm structure around the diaphragm, and a radially outer gluing edge adhered to a radially outer location of the diaphragm structure around the frame. The surround suspension and the web-like spider of the diaphragm structure form two suspension elements for stably supporting the diaphragm, enabling minimized irregular shaking and reduced weight of the diaphragm, as well as reduced sound distortion, increased compliance and upgraded efficiency of the passive radiator structure.