35results about How to "Size does not change" patented technology

The invention provides a metal carrier band for packaging a noncontact module with large size which is characterized in that the metal carrier band comprises a chip bearing region which can bear a chip of 3.9*4.5mm. The chip which is 1.5 times of the area of a common chip can be bear and packaged, and a module product with the same mechanical size is obtained. By the improvement of the metal carrier band and under the premise of the increased size of the packaged chip, the combining force of a mould body with the metal carrier band is improved to the maximum extent after the mould packaging, therefore, the mechanical force resistance of internal devices is improved greatly. The carrier band is packaged in a reeling way. Under the premise of not adding the investment, the present conventional packaging process and the existing equipment can be used for producing products with better quality, therefore, the application of high-end chips, such as noncontact intelligent electronic passport, EMV band card, and the like in the intelligent card field is expanded.

The invention discloses a separation type damping energy consumption three-dimensional seismic isolation support which comprises a horizontal seismic isolation unit arranged between an upper structure and a middle bearing platform, and a vertical seismic isolation unit arranged between the middle bearing platform and a foundation bearing platform. The horizontal seismic isolation unit is a vertical lead rubber support which is axially and vertically installed, and the vertical seismic isolation unit is formed by connecting at least two inclined lead rubber supports equal in size specification in parallel to form a set of outward expanding cylindrical structure in space symmetry so that the vertical deformation borne by the vertical seismic isolation unit can be transformed into inclined deformation and outward expanding displacement of the inclined rubber supports. An upper friction plate and a lower friction plate are arranged between the vertical seismic isolation unit and the middle bearing platform, and initial supporting force is provided and seism / vibration energy is dissipated through friction sliding of a contact face. According to the separation type damping energy consumption three-dimensional seismic isolation support, seism and environment vibration in three directions can be isolated at the same time, the seism / vibration response and seism / vibration transmission of a protected structure or device with the separation type damping energy consumption three-dimensional seismic isolation support are effectively controlled, and the safety under the seism / vibration action is protected.

The invention provides a profiled air cylinder which is provided with an air cylinder barrel, an air cylinder end cover connected with the air cylinder barrel, a piston arranged in the air cylinder barrel, a piston rod connected with the piston and a spring arranged on the piston rod, wherein the shape of the inner cavity of the air cylinder barrel is set as a long circle; the shape of the piston is set as a long circle; the piston is matched with the air cylinder barrel; a long-circular long shaft L passing the center is 35mm; a long-circular short shaft D passing the center is 28mm; a long-circular sealing gasket is arranged between the air cylinder end cover and the air cylinder barrel; a bearing is arranged in the piston; and the piston is provided with a cushion pad. In the invention, since the shapes of the air cylinder barrel and the piston of the profiled air cylinder are respectively set as the long circle, the effective area is increased, and thereby, the thrust of the profiled air cylinder can be increased without changing the distance 32mm between the shafts.