9results about How to "Increase the opening area" patented technology

The application discloses a kind of high air permeability nonwoven fabric mesh belt and preparation method thereof, belong to mesh belt technical field, modified polyester particles and polyolefin elastomer particles are stirred and mixed, to obtain mixed material, mixed material is dried and pre-crystallization;Mixed material is extruded, granulation, to obtain composite polyester particles;Composite polyester particles are extruded into shape, wet oiling, winding into shape, prepare polyester monofilament;Polyester monofilament includes warp and weft, the cross-sectional shape of warp is circular, and the cross-sectional shape of weft is right-angled trapezoidal, finally warp and weft are woven into high air permeability nonwoven fabric mesh belt;Through structural design, in the case where it does not increase open porosity, increase the open area, so as to ensure the stability of mesh belt high speed, increase the mesh belt air permeability, increase the exhaust effect of exhaust fan, also make nonwoven fabric fiber have better flat effect, unnecessary to replace mesh belt in different specifications nonwoven fabric production process, help to improve work efficiency.

The utility model relates to air conditioning technical field discloses a device for fluorine system comfort air conditioner air outlet temperature rise, including the organism, the bottom equidistance of organism installs a plurality of silencing mechanism, the silencing mechanism is used for reducing the noise of air outlet, the bottom equidistance of organism installs a plurality of cover mechanism, the cover mechanism is used for the size of the size of the area of covering, the silencing mechanism includes the long hollow board, the long hollow board equidistance is installed in the bottom of organism, the bottom fixed connection of long hollow board has the supporting plate, the outer wall adjacent side fixed connection of supporting plate has the long rod. In the utility model, through piston rod reciprocating movement, compressed air and slowly discharge, reduce the noise frequency, thereby avoided the problem that the air conditioning air outlet wind force will produce bigger noise when blowing, the personnel body in the air conditioning surrounding area for a long time will produce the problem of discomfort.

This application discloses a display panel and a display device. The display panel includes a substrate and an isolation structure. The isolation structure is disposed on one side of the substrate and encloses a plurality of isolation openings, including interconnected main isolation openings and auxiliary isolation openings. The display panel has an isolation cross region located between at least three adjacent main isolation openings. The auxiliary isolation openings extend from the main isolation openings toward the isolation cross region and are at least partially located within the isolation cross region. Each isolation cross region has at most one auxiliary isolation opening. This application can compress the size of the isolation structure between adjacent isolation openings, increase the PPI of the display panel, and thus improve the performance of the display panel.

The invention discloses a dustproof and moistureproof flexible driving heat dissipation device which comprises a mounting base, a heat dissipation cover plate, a driving arm and a driving connecting rod, heat dissipation holes are formed in the mounting base, the heat dissipation cover plate is used for covering or opening the heat dissipation holes, and the mounting base is rotationally connected with the heat dissipation cover plate through at least two rotary connecting structures to form a parallelogram structure. The mounting base is in transmission connection with the heat dissipation cover plate through a U-shaped driving arm, one end of the driving arm is fixedly connected with the mounting base, and the other end of the driving arm is fixedly connected with a driving connecting rod. According to the invention, illumination and heat can drive the CNT-Nafion / PE double-layer driver to deform and enable the heat dissipation holes to be opened or closed, and the projection of the heat dissipation cover plate on the mounting base when the heat dissipation cover plate is opened and the projection of the heat dissipation cover plate on the mounting base when the heat dissipation cover plate is closed can completely cover the heat dissipation holes. A macroscopic large-amplitude bending stroke can be generated by using extremely small temperature change, and the opening degree requirement of opening of a heat dissipation channel is met.

This application discloses an EGR one-way valve and an EGR system. The EGR one-way valve includes a base and a valve plate. A rotating shaft is provided at the fixed end of the valve plate, and a bushing is provided on the base. The valve plate is rotatably connected to the base through the bushing that cooperates with the rotating shaft. The opening of the valve plate of the EGR one-way valve disclosed in this solution is affected by the friction between the rotating shaft and the bushing. The friction between the rotating shaft and the bushing is much smaller than the restoring force generated by the deformation of the valve plate in related technologies, which reduces the opening resistance of the valve plate and increases the opening angle of the valve plate, thereby reducing the exhaust gas resistance and helping to improve the engine EGR rate. By changing the fixing method of the valve plate, the valve plate does not deform during the opening process, and the valve plate does not block the opening area, increasing the opening area at the same opening angle. At the same time, the valve plate does not deform, reducing the risk of the valve plate breaking due to frequent opening and closing, and extending the service life of the valve plate.

Embodiments of the present application provide an agricultural unmanned aerial vehicle, and relate to the field of unmanned aerial vehicle plant protection. The agricultural unmanned aerial vehicle comprises a main body frame, a plurality of arms and a storage box. The length of the main body frame in the front-rear direction is greater than the length in the left-right direction. One end of the arm is connected to the corner position of the main body frame, and the other end of the arm is connected to a power device. The feeding port of the storage box is arranged on the left side and / or the right side of the main body frame and is close to the main body frame. The inside of the main body frame is used for placing a battery. The battery is placed in the middle to ensure the stability of the center of gravity of the whole machine. The length of the main body frame in the front-rear direction is greater than the length in the left-right direction. The length of the main body frame in the front-rear direction can be lengthened, and the space on the left and right sides of the main body frame can be increased. Since the feeding port of the storage box is arranged on the left side and / or the right side of the main body frame, the space on the left and right sides of the main body frame is increased, and the feeding port is close to the main body frame, so that the opening area of the feeding port of the storage box can be increased.

The present disclosure provides a semiconductor device manufacturing method, a semiconductor device and a DRAM. The method comprises: providing a substrate, the substrate comprising a substrate, a plurality of first electrode structures and a filling structure, the plurality of first electrode structures being spaced apart on the substrate, the filling structure being filled between any two adjacent first electrode structures, and at least part of the first electrode structure being exposed from a sidewall of an end of the substrate to form a plurality of first recesses; forming a first support portion in the part of the first recess, wherein a surface area of a support region is less than a surface area of an opening region, the support region being a region covered by all the first support portions and the filling structure, and the opening region being a region not covered by all the first support portions and the filling structure; and removing the filling structure in the substrate where the first support portion is formed. The present disclosure ensures that the filling structure can be removed as completely as possible, avoiding device failure problems caused by residual filling structure.

The utility model discloses a frame sash system of an extremely-narrow casement window, which comprises a frame main body, a glass sash frame body, a protective fence main body and a screen sash frame body, and the protective fence main body and the screen sash frame body are arranged on one side of the frame main body close to the interior of a room. The first extremely-narrow broken bridge sectional material comprises a first sectional material arranged on the side close to the outdoor space, a second sectional material arranged on the side close to the indoor space and a first heat insulation strip clamped between the first sectional material and the second sectional material, and the second sectional material is bent in the direction away from the frame body; the first extremely-narrow broken bridge sectional material is arranged between the screen sash frame body and the glass sash frame body, the inner side of the first extremely-narrow broken bridge sectional material is attached to the protective fence body to form a lock box installation cavity, the first extremely-narrow broken bridge sectional material uses a first sectional material and a second sectional material which are provided with extremely-narrow decorative faces, a lock box and a handle structure which are traditionally arranged in the glass sash frame body are transferred to the position between the screen sash frame body and the glass sash frame body of the protective fence body, and the width of a glass sash is reduced; therefore, the LED lamp can be shrunk in an extremely narrow manner, and has a larger opening area and a larger illumination effect.

The application provides an artificial heart valve, which comprises a support and an artificial valve leaflet, the artificial valve leaflet is connected with the support, the support is divided into an inflow tract and an outflow tract in the axial direction, the outflow tract has a plurality of support sewing rods which are concave in the direction of the inflow tract and are arranged in an arc shape, and a blank area is formed on the side of the support sewing rods away from the inflow tract, the plurality of support sewing rods are sequentially arranged in the circumferential direction of the support, the two ends of the adjacent two support sewing rods are connected through a support window, the artificial valve leaflet comprises a valve leaflet free edge part, a valve leaflet commissure part and a valve leaflet fixed edge part, the two ends of the valve leaflet free edge part and the valve leaflet fixed edge part are connected through the valve leaflet commissure part, the valve leaflet fixed edge part is sewn and fixed with the support sewing rod, and the valve leaflet commissure part is sewn and fixed with the support window. The application can make the blood flow fully flow during the opening and closing of the artificial valve leaflet, avoid the formation of a dead zone of blood flow stagnation, and reduce thrombosis.