Abstract: A vacuum battery structural assembly and a vacuum multi-cell battery module composed thereof are provided and include a first repeating unit including a first frame plate and a second frame plate with respect to the first frame plate; and an electrolyte channel defined within the first frame plate and the second frame plate to accommodate a liquid electrolyte, wherein both a surface of the first frame plate and a surface of the second frame plate include a vacuum suction area, the vacuum suction area includes a vacuum aperture and a vacuum channel, wherein the vacuum aperture is formed on at least one surface of the first frame plate and the second frame plate, the vacuum channel is positioned inside the first frame plate and the second frame plate, and is configured to generate a longitudinal pressing suction force and seal the first frame plate and the second frame plate.

Abstract: A recording device comprises a first transmission unit, a switching and control unit, a sound quality sampling and encoding-decoding unit, a second transmission unit, a data access unit, a data writing unit, and a memory unit. A first digital audio source signal of an electronic device is transmitted from the first transmission unit to the switching and control unit. The sound quality sampling and encoding-decoding unit is electrically connected to the switching and control unit, receives and converts the aforementioned signal into a first digital audio signal and a first analog audio source signal. A second analog audio source signal of an audio receiving and transmitting device is converted into a second digital audio signal by the sound quality sampling and encoding-decoding unit. The data writing unit receives the first and second digital audio signals and writes the first and second digital audio signals into the memory unit.

Abstract: A recording device comprises a first transmission unit, a switching and control unit, a sound quality sampling and encoding-decoding unit, a second transmission unit, a data access unit, a data writing unit, and a memory unit. A first digital audio source signal of an electronic device is transmitted from the first transmission unit to the switching and control unit. The sound quality sampling and encoding-decoding unit is electrically connected to the switching and control unit, receives and converts the aforementionedsignal into a first digital audio signal and a first analog audio source signal. A second analog audio source signal of an audio receiving and transmitting device is converted into a second digital audio signal by the sound quality sampling and encoding-decoding unit. The data writing unit receives the first and second digital audio signals and writes the first and second digital audio signals into the memory unit.

Abstract: A hammer assembly of a power tool is provided, including: a main body, defining an axial direction and a radial direction, having a receiving room opened radially and having two saddle portions by two opposite sides of the receiving room, the two saddle portions respectively having an assembling end and a through hole communicating with the receiving room; an axle, disposed through the through hole axially into the receiving room and rotatably assembled to the main body; a hammer block, laterally movably and circumferentially swingably assembled to the main body, the hammer block received in the receiving room and swingably saddled around the axle; wherein when the main body is driven by the power source to rotate, the hammer block comoves with the main body and impacts and drives the axle intermittently.

Abstract: The invention relates to a decorative light string, which includes a main light string having several lamp holders to engage with related C-type lamps, a branch string having one end a screw-head. The branch string can have its screw-head engage with a lamp holder of the main string, which then includes several C-type lamps and several branch strings that facilitates the application on any decoration and obtains utilization and improvement.