A method for producing an alveolar soundproofing structure in which a portion of a membrane of a diaphragm including an acoustic outlet is inserted into a hole of a perforated membrane which covers a cell of the alveolar structure, and the diaphragm is pressed into the cell with the perforated membrane becoming deformed and is fixed at that location. It also relates to the alveolar structure. Such a method enables different types of diaphragms to be inserted into different configurations of cells and enables the diaphragm to be fixed therein, in accordance with the sound frequencies to be processed.

A pickup diaphragm includes a pickup part, a suspension edge and an outer edge, wherein the pickup part includes a non-planar surface. The suspension edge includes a deformable surface, with a joint surface being respectively configured on the inner and outer sides of the deformable surface, and the joint surface on the inner side being fixedly connected to the periphery of the non-planar surface. In addition, the outer edge includes a ring groove, in which one side of the ring groove is set as a connection end while the other side thereof is set as an opening end, the inner side of the connection end is fixedly connected to the joint surface located on the outer side, and a stethoscope head can be inserted through the opening end such that the ring groove is placed in sleeve on the outside of the stethoscope head.

A pickup diaphragm includes a pickup part, a suspension edge and an outer edge, wherein the pickup part includes a non-planar surface. The suspension edge includes a deformable surface, with a joint surface being respectively configured on the inner and outer sides of the deformable surface, and the joint surface on the inner side being fixedly connected to the periphery of the non-planar surface. In addition, the outer edge includes a ring groove, in which one side of the ring groove is set as a connection end while the other side thereof is set as an opening end, the inner side of the connection end is fixedly connected to the joint surface located on the outer side, and a stethoscope head can be inserted through the opening end such that the ring groove is placed in sleeve on the outside of the stethoscope head.

Various embodiments provide a speech diaphragm module comprising: a body; a lid secured to the body to form an enclosed volume therein; a resilient film secured within the enclosed volume along an attachment join formed around a periphery of the resilient film; and a tensioning feature arranged to displace an operative portion of the resilient film relative to the attachment join to apply a tension across the resilient film. Some other embodiments provide a method of manufacturing a speech diaphragm module, a respirator, and a kit of parts for forming a speech diaphragm module.

Various embodiments provide a speech diaphragm module comprising: a body; a lid secured to the body to form an enclosed volume therein; a resilient film secured within the enclosed volume along an attachment join formed around a periphery of the resilient film; and a tensioning feature arranged to displace an operative portion of the resilient film relative to the attachment join to apply a tension across the resilient film. Some other embodiments provide a method of manufacturing a speech diaphragm module, a respirator, and a kit of parts for forming a speech diaphragm module.

The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a central dome part; a suspension part surrounding the dome part; a number of first reinforcing parts disposed on the suspension part; a number of second reinforcing parts disposed on the suspension part and being adjacent to the first reinforcing parts. The second reinforcing part includes a first master extension part and a first slave extension part, and the first master extension part and the first slave extension part cross with each other.

The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a central dome part; a suspension part surrounding the dome part; a number of first reinforcing parts disposed on the suspension part; a number of second reinforcing parts disposed on the suspension part and being adjacent to the first reinforcing parts. The second reinforcing part includes a first master extension part and a first slave extension part, and the first master extension part and the first slave extension part cross with each other.

An ultrathin assembled speaker cone includes a support frame and a vibrating diaphragm. The support frame has a first support portion, a second support portion, and a connecting portion connected between the first support portion and the second support portion. Through the vibrating diaphragm, the problem that the conventional speaker cone is not sufficiently lightweight is effectively solved, and the material of the vibrating diaphragm may have more diverse options.

An ultrathin assembled speaker cone includes a support frame and a vibrating diaphragm. The support frame has a first support portion, a second support portion, and a connecting portion connected between the first support portion and the second support portion. Through the vibrating diaphragm, the problem that the conventional speaker cone is not sufficiently lightweight is effectively solved, and the material of the vibrating diaphragm may have more diverse options.

A compressed skins-tensioned core structure includes a first surface region; a second surface region; a core between the first surface region and the second surface region; a first transition region continuous with the first surface region at a side, and continuous with the core at another side; and a second transition region continuous with the core at a side, and continuous with the second surface region at another side, wherein each of the first surface region, the second surface region, the core, the first transition region and the second transition region is formed of a substantially homogeneous amorphous material; each of the first surface region and the second surface region exhibits an internal compressive stress, the core exhibits an internal tensile stress, and each of the first transition region and the second transition region exhibits a stress gradient from the internal compressive stress to the internal tensile stress.