45results about How to "Improve contact performance" patented technology

The invention discloses a design method for a water lubricated rubber stern bearing. According to the method, axial hardness division is performed on a traditional slat-type water lubricated rubber stern bearing, a rubber bearing bush of the traditional slat-type water lubricated rubber stern bearing is divided into a plurality of regions from the stern end to the front end, the hardnesses of rubber from the stern end to the front end are sequentially increased, and the length of a region close to the front end is the longest, so as to enable the water lubricated rubber stern bearing to adapt to actual load and improve the contact pressure performance of the bearing. The invention further provides the water lubricated rubber stern bearing. According to the method, the whole long stern bearing is divided into the regions with different hardnesses based on a pressure distribution feature of the water lubricated rubber stern bearing, so that the pressure distribution of the water lubricated rubber stern bearing is remarkably improved, the contact regions are effectively extended in the circumferential direction, and the contact performance of the stern bearing is well improved as a whole.

To prevent spherical solder residue from being formed on a semiconductor laser element, sub-mount or heat sink when producing a semiconductor laser assembly. A sub-mount (16) is provided with a sub-mount groove (32) formed along the boundary of a junction area thereof with a semiconductor laser element (12), and an extension groove (36) extending up to the edge of the sub-mount (16). A plurality of sub-mount slender grooves (38) each smaller in groove width and shallower in groove depth than the sub-mount groove (32) are formed in the sub-mount junction area in a lattice form and obliquely with respect to the sub-mount groove (32) so as to be separated from each other and communicate with the sub-mount groove (32) at at least one of each end. When the semiconductor laser element (12) is to be solder-joined, excessive solder flows out to the sub-mount (32) via sub-mount slender grooves (38) and then is discharged to the outside via an extension groove (36).

The invention discloses a preparation method of a proton exchange membrane fuel cell membrane electrode, which is characterized by comprising the following steps: a, preparing a gas diffusion electrode by using catalyst ink and a gas diffusion layer; b, coating the surface of a catalyst layer of the gas diffusion electrode with a perfluorosulfonic acid diluent with the concentration of 0.5 wt%-1wt%, and drying the gas diffusion electrode at 90-120 DEG C for 30-60 minutes; and c, fitting the surfaces, coated with the perfluorosulfonic acid, of the two gas diffusion electrodes with the two sidesof the solid electrolyte respectively, and performing hot pressing to obtain the membrane electrode. According to the invention, the surface of the catalyst layer is coated with a Nafion diluent; themembrane and the proton exchange membrane have the same substance and different substance states; in the hot pressing process, Nafion resin on the surface of the catalyst layer and Nafion resin in the proton exchange membrane are reconstructed in physical state and are fused and combined, so that the catalyst layer and the proton exchange membrane are better combined into a whole, the contact performance between the catalyst layer and the proton exchange membrane is improved, the contact resistance is reduced, and the power generation performance is improved.

The invention relates to the technical field of semiconductor display, and particularly relates to a display device and a method for preparing an organic light emitting diode display panel. Convex blocks, which are higher than the upper surfaces of bonding pads, are arranged between the bonding pads on the display panel, so that conductive particles in an ACF film in a subsequent hot-pressing technological process are converged to an ACF film positioned above the bonding pads; therefore, the shortcomings of short-circuit between adjacent bonding pads caused by conductive particle convergence, and the like can be effectively avoided; and meanwhile, the contact performance between the display panel and an FPC film is effectively improved.

The present invention discloses an electrical connector. The electrical connector comprises an insulation body. Multiple terminals comprise an upper row terminal group and a lower row terminal group,and the multiple terminals are fixed on the insulation body. The upper row terminal group comprises at least one first grounding terminal, and the lower row terminal group comprises at least one second grounding terminal. A shielding piece is contained in the insulation body, the shielding piece is located between the upper row terminal group and the lower row terminal group, and the shielding piece comprises at least an opening, a first elastic arm and a second elastic arm, wherein the first elastic arm and the second elastic arm form interlaced arrangement separately from two opposite sidesof the inner edge of the opening. The first elastic arm extends towards the first grounding terminal(s), and the first elastic arm and the first grounding terminal(s) are contacted with each other. The second elastic arm extends towards the second grounding terminal(s), and the second elastic arm and the second grounding terminal(s) are contacted with each other. The extending starting points of the first elastic arm and the second elastic arm are separately a first position and a second position, and the extending end points are separately a third position and a fourth position. The third position is more close to the second position compared with the fourth position to ensure that the elastic arm lengths of the first elastic arm and the second elastic arm are long enough, so that the first elastic arm and the second elastic arm are not prone to fatigue when the first elastic arm and the second elastic arm are contacted with the grounding terminals repeatedly, the durability is enhanced, and the service life is improved.

This invention is a ridge waveguide-type semiconductor luminous device and its manufacturing method. It has layer-shaped structure; from the bottom to top is the lower electrode layer, the semiconductor substrate, the activating layer and the upper coating thin layer. The characteristics are: the flat insulation layer is above the upper coating thin layer and its center has the current input channel with width pre-setting and upper part is the current input channel as the center, the ridge upper coating thick layer on which is the current contact layer, the upper electrode layer wholly covers on the surface of the current contact layer and the insulation layer. The advantages are low cost, high finished products ratio and non-limitation of design, it can be widely used for the semiconductor laser, luminous diode, semiconductor amplifier and integrated luminous components.

A motor of an electric vehicle is provided with stators fixedly connected with a support shaft. Stator windings are wound on the outer rings of the stators, rotor magnetic poles are suspended around the outside of the stator windings and embedded on an inner ring of a wheel hub, circuits of the stator windings are lead out from axial holes, a controller is built on the stators of the motor, and circuits of the stator windings are controlled to be connected with the controller firstly and then is led out from the axial hole. The motor of the electric vehicle has the advantages that the number of momentum plugs is decreased, connecting wires from the controller to the stator windings are shortened, contact performance is improved, possible corrosion by rainwater and short circuit are reduced, power consumption is lowered, and efficiency is improved. By embedding the controller, possible damage to the controller is reduced, and the possible problem about theft of the electric vehicle incapable of being locked is reduced.

The invention discloses an electrical contact piece of a spiral elastic contact element with a built-in liquid cooling medium, which comprises a spiral elastic contact element and a liquid cooling conduit arranged inside the spiral elastic contact element, and the spiral elastic contact element includes a plurality of unit spiral rings , a plurality of unit spiral rings are connected end to end along a spiral trajectory; the unit spiral rings are surrounded by linear conductors, and the unit spiral rings include: sequentially connected deformable contact parts, first transition parts, a fixed contact portion and a second transition portion; the deformable contact portion is configured as a bent structure, including a guide area, a deformation area, a protrusion connecting the guide area and the deformation area, the length of the guide area is less than the length of the deformation area, and the protrusion from the side of the median perpendicular to the line connecting the apex of the first transition portion and the apex of the second transition portion. The invention has high contact performance, and its guiding area has both guiding and deforming functions, so that pins or other electrical connecting devices used in conjunction with it can realize electrical contact within a short stroke.

The invention discloses an electrical connector with a pin contact piece. The electrical connector comprises the pin contact piece, wherein the pin contact piece comprises a conductive pin and at least one spiral elastic contact component, an accommodating groove is formed in an outer wall of the conductive pin and is used for installing the spiral elastic contact component, the spiral elastic contact component comprises a plurality of unit spiral rings, the plurality of unit spiral rings are sequentially connected in an end-to-end way along a spiral track line, each unit spiral ring comprises a deformable contact part, a first transition part, a fixed contact part and a second transition part which are sequentially connected, the deformable contact part is of a bending structure and comprises a guide region, a deformation region, a contact guide region and a bulge of the deformation region, and the bulge is arranged at one side of a midperpendicular of a connection line of a top point of the first transition part and a top point of the second transition part. The electrical connector has relatively high contact performance, the guide region simultaneously has effects of guidance and deformation, and thus, electrical contact of a pin used with the electrical connector in a matching way or the other electrical connectors can be achieved within short stroke.