51results about How to "Shorten return path" patented technology

The invention discloses a shielding plate, a conductive end protective sheet, a module structure and an electrical connector. The shielding plate comprises more than two main shielding plates, one ends, connected with the male end of an electrical connector, of the main shielding plates are provided with bulges and first contact terminals; the bulges are configured to be in contact with the male end of the connector, the first contact terminals are configured to butt against the grounding wirings corresponding to the adjacent main shielding plates, two sides of the main shielding plates are respectively provided with the bulges and the first contact terminals, pressure is applied to the grounding wirings corresponding to the adjacent shielding plates through the first contact terminals sothat close contact is formed among the male end of the connector and the bulges and the corresponding grounding wirings, the backflow path is reduced and the crosstalk is reduced.

The invention discloses a carbon nanotube array-based liquid-absorbing core support column integral structure flat heat pipe, including upper and lower metal cover plates and upper and lower metal cover plate liquid-absorbing cores formed on the inner sides of the upper and lower metal cover plates respectively The support column is an integrated structure; the upper and lower metal cover plates are sealed to form an airtight cavity by edge sealing, and the airtight cavity after vacuuming is filled with working liquid; the upper and lower metal cover plate liquid-absorbing core support column The integrated structure includes thin-layer carbon nanotubes grown on the inner surface of the metal cover plate and several vertical carbon nanotubes that continue to grow in specific regions of the thin-layer carbon nanotubes, which respectively constitute the capillary core of the flat heat pipe and the support column of the flat heat pipe ; The upper and lower metal cover support columns are staggered to form an integrated structure of liquid-absorbing core support columns in the form of fork rows. The invention has the characteristics of high thermal conductivity, small size, light weight, etc., can not only ensure the heat transfer performance of the flat heat pipe, but also achieve the mechanical strength and safety of the heat pipe during operation.

The invention belongs to the technical field of heat transfer, and particularly relates to a composite liquid-cooling heat pipe radiator. The composite liquid-cooling heat pipe radiator comprises a flat plate heat pipe, wherein heat generated by a heating component is transferred to a bottom plate of the flat plate heat pipe, a top plate of the flat plate heat pipe is provided with protrusions perpendicular to the bottom plate of the flat plate heat pipe, the protrusions form a tubular heat pipe, and an inner cavity of the flat plate heat pipe is communicated with an inner cavity of the tubular heat pipe. The composite liquid-cooling heat pipe radiator further comprises a shell. The flat plate heat pipe and the tubular heat pipe are both located in the shell, and the bottom plate of the flat heat pipe is attached to the bottom surface of the shell in a sealed mode; an area defined by the outer surface of the flat plate heat pipe, the outer surface of the tubular heat pipe and the innerwall of the shell forms a cooling liquid channel; and the shell is provided with a cooling liquid inlet and a cooling liquid outlet. According to the radiator, the tubular heat pipe is combined withthe flat plate heat pipe, so that the radiator can be attached to a flat surface of the heating component and has a good radiating effect; and meanwhile, heat released by a refrigerant of a condensation section is taken away through liquid cooling, and compared with air convection heat dissipation, the heat exchange capacity of the composite heat pipe with the outside is improved.

The invention discloses a female-end connector for a high-speed differential signal connector. The female-end connector comprises a female-end base and a plurality of female-end signal transmission modules arranged side by side on the female-end base. The female-end signal transmission modules include signal transmission modules and metal shielding plates fixed at the signal transmission modules.The signal transmission modules include module housings, signal transmission reeds and plastic packaging modules; a plurality of recessed cavities are arranged at the module housings; the signal transmission reeds are installed in the recessed cavities; the plastic packaging modules cover the recessed cavities and seal the recessed cavities, so that enclosed signal channels are formed in the signal transmission reeds. Protruding teeth that are fixed and communicated with the female-end base are arranged at the lower end portion of the metal shielding plates. Besides, convex hull structures arearranged at positions, corresponding to the protruding teeth, on the female-end base. Therefore, the mutual interference between differential signal pairs is reduced and the return path is reduced.

The embodiment of the invention provides an antenna device and a mobile terminal. The antenna device comprises a front shell, and a main board, an antenna small board, an antenna radiator, a feed point elastic sheet and a grounding elastic sheet which are arranged in the front shell, wherein the feed point elastic sheet is arranged on the antenna small board and is used for connecting the feed line on the antenna small board with the antenna radiator, the grounding elastic sheet is arranged on the front shell, the first end of the grounding elastic sheet is connected to the grounding point onthe front shell, the second end of the grounding elastic sheet is connected to the antenna radiator, and the grounding point on the front shell is connected to the ground wire of the main board. According to the embodiment of the invention, the antenna grounding connection mode is improved, so that the antenna grounding yield is improved, the current return path is shortened, and the antenna performance and the overall performance of the mobile terminal are improved.

The invention discloses a module structure for a high-speed connector and the high-speed connector. The module structure comprises signal transmission modules and shielding components arranged on thesignal transmission modules, and the shielding components on the adjacent signal transmission modules are connected through intermediate connecting pieces. According to the invention, the intermediateconnecting piece is arranged between the two modules, the shielding components on the adjacent signal transmission modules can be connected through the intermediate connecting pieces, and the conduction of the shielding components on the adjacent modules is realized, so that the reflux path is shortened, and the crosstalk is reduced.

The invention discloses a high speed differential signal connector. The high speed differential signal connector includes a male end connector and a female end connector that are in mutual plug fit; the female end connector includes a female end base and a plurality of female end signal transmission modules that are plugged in parallel on the female end base; each of the female end signal transmission modules includes a signal transmission module and a metal shield plate fixed on the signal transmission module; the lower end portion of the metal shield plate is provided with protruding teeth for fixing and conducting with the female end base; and convex hull structures are disposed on the female end base corresponding to the protruding teeth. In the high speed differential signal connector, the protruding teeth are disposed at the lower end portion of the metal shield plate, and at the same time, the matching convex hull structures are disposed on the female end base to facilitate fixation of the female end signal transmission modules and the metal shield plates, and at the same time, the metal shield plates can communicate with the female end base to form a relatively short backflow path, thus facilitating shortening the backflow path of a differential signal.

The present invention discloses a design method of layout at a board card golden finger and a server board card. The design method comprises the steps of: setting the quantity of GND via interconnected with GND pins according to the types of the GND pins on the board card golden finger and a space between a golden finger on the board card and the GND vias to allow the GND vias interconnected withthe GND pins to reach the maximum quantity; and combining and interconnecting the GND pins with all the GND vias matched with the GND pins to form a signal return path; in the signal return path, getting all the GND vias tightly close to the matching GND pins to minimize the length of the signal return path. The design method can greatly reduce the degree of attenuation in the transmission processof high-speed signals and can effectively optimize the signal return path so as to avoid generation of resonance points on a high-frequency section by a signal insertion loss waveform, near-end cross-talk frequency domain waveform and far-end cross-talk frequency domain waveform, facilitate improvement of the quality of signal transmission and improve the operation stability of the whole system.

The invention discloses an electric connector device. The electric connector device comprises a plurality of overlapped module structures. Each module is structurally provided with a shielding assembly. The middle parts of shielding assemblies on adjacent modules structures are connected through a middle connecting piece. The middle connecting piece comprises a plastic electroplating shell and contact connecting pieces arranged in the plastic electroplating shell at intervals. The contact connecting pieces are provided with connecting contacts connected with the shielding assemblies. One shielding assembly is in contact with the plastic electroplating shell. Adjacent shielding assemblies are in contact with connecting contacts on the above contact connecting piece. By means of the middle connecting piece arranged between every two modules, the shielding assemblies on adjacent signal transmission modules can be connected through the middle connecting piece. The conduction of the shielding assemblies on the adjacent modules is achieved. Therefore, the backflow path is shortened, and the crosstalk is reduced.

The invention discloses a module structure for a high-speed connector and a high-speed connector. The high-speed connector comprises a mounting base and a signal transmission module inserted into themounting base. The signal transmission module is composed of a plastic package casing and a differential signal terminal. The side surface of the plastic package case that is in contact with the mounting base is provided with a positioning hook and a wedge structure in the insertion direction. The positioning hook matches an insertion groove in the mounting base. The wedge structure matches a wedge-shaped groove on the end portion of the side wall of the mounting base. By disposing the wedge structure on the module structure, and by means of the cooperation of the wedge structure and the wedge-shaped groove, the positioning hook can enter the positioning insertion groove of the base according to a predetermined path, thereby improving the stability of the structure and ensuring the consistency of the differential impedance.

The invention discloses a flow-concentrating cup for a soybean milk machine with improved structure. Based on the direction of use, the cup body is a T-shaped hollow cylinder with a diameter at the upper end greater than that at the lower end. On the surface, at least one through hole is provided on the annular joint surface. The present invention adopts a double-ring structure. The through hole on the annular joint surface and the lower end of the cup form a soymilk circulation channel, which greatly shortens the soymilk return path, so that the unit time The number of internal grinding and cutting is greatly increased, which makes the fine grinding efficiency of the soymilk machine high, the crushing time of the soymilk machine is short, and the pulp yield is high.

The invention discloses a female-end connector for a high-speed differential signal connector. The female-end connector comprises a female-end base and a plurality of female-end signal transmission modules arranged side by side on the female-end base. The female-end signal transmission modules include signal transmission modules and metal shielding plates fixed at the signal transmission modules.The signal transmission modules include module housings, signal transmission reeds and plastic packaging modules; a plurality of recessed cavities are arranged at the module housings; the signal transmission reeds are installed in the recessed cavities; pressing plates are arranged at the sides with the recessed cavities of the module housings at intervals and are arranged between the adjacent recessed cavities; square bosses are arranged at the pressing plates; the plastic packaging modules cover the recessed cavities and seal the recessed cavities, so that enclosed signal channels are formedin the signal transmission reeds; and gaps are formed between the plastic packaging modules and the pressing plates. Therefore, a phenomenon of insufficient contact caused by unevenness of the bossesin various directions among the plurality of components is avoided.