51results about How to "Outflow in time" patented technology

The invention provides a combined die for preparing a carbon-fiber-reinforced fold sandwich cylindrical shell. The combined die comprises a core forming die body, a panel forming die body and a solidification die body; the core forming die body comprises a male die and five female dies, the male die is one quarter of a round ring, the inner wall of the male die is provided with a plurality of equal quadrilateral units, five quadrilateral units are arranged in the axial direction of the male die, three quadrilateral units are arranged in the annular direction of the male die, the five female dies are arranged side by side, and the quadrilateral units on the female dies are in complete occlusion with the quadrilateral units on the male die; the panel forming die body comprises an inner die, a middle die and a base, and the middle die and the inner die are arranged in a concave arc in sequence from inside to outside; the solidification die body comprises an inner support and an outer support, the outer support is formed by buckling two same semi circular rings, and the radius of the outer support is the same as that of the concave arc; and the core forming die body, the panel forming die body and the solidification die body are arranged in sequence. The combined die is used for preparing the carbon-fiber-reinforced fold sandwich cylindrical shell.

The invention discloses a polymorphic subway tunnel arched wall based on heat reduction and flame retardancy, which belongs to the field of building construction. Layer and hollow overflow layer are set, in the case of fire or high temperature is about to break out, the irregular ball is melted, and the liquid containing carbon dioxide inside flows out. The concentration of carbon dioxide can reach a certain degree of restraint on the fire, prolong the effective time of firefighting for the staff, and effectively reduce the threat to people's lives and property caused by the fire in the subway tunnel. At the same time, when the liquid in the irregular ball has flowed out Due to the loss of irregular balls, voids will be generated in the bottom skeleton in the thermotropic layer, which can store and accommodate more heat and smoke, further reducing the fire threat.

The invention discloses a method for improving heat dissipation of a lithium battery at high temperature, and relates to the technical field of battery BMS. The heat dissipation method includes a battery pack, the battery pack is arranged in a battery PACK module, a battery PACK fan is installed under the battery, a fixing frame is provided between the battery PACK fan and the battery, and the battery A battery PACK box is installed on the top of the battery pack, a fixing frame is arranged between the battery pack and the battery PACK box, and several through holes are provided on the upper surface of the battery PACK box, corresponding to the bottom of the through holes on the upper surface of the battery PACK box There are several PACK box flat openings and several PACK box convex openings, the fan blows air to the PACK box convex openings through the battery PACK box flat openings, and the air flows out from the through holes corresponding to the PACK box convex openings. When the air passes through the battery pack box, the pressure difference between the flat mouth of the pack box and the convex mouth of the pack box is created, so that the air inside the battery can be discharged quickly.

The invention discloses an electric bellows for air-contact self-condensation repair, which belongs to the field of electric pipes. The electric bellows for air-contact self-condensation repair has a certain shock resistance and unloading force on the one hand through the setting of the air contact layer. It can effectively protect it from part of the extrusion force, and play a certain role in protecting the tip of the bamboo shoot-shaped bulge, effectively avoiding its rupture under force. On the other hand, when it is subjected to a large bending force, the gas The compression of the contact layer causes the gas to have a certain extrusion effect on the embedded extension piece, and the inner extension piece expands and deforms toward the side of the inner liquid storage ball, so that the folded part is stretched, so that the inner contact point It can be in contact with the inner liquid storage ball and puncture the inner liquid storage ball, so that the internal repair agent overflows. When the bamboo shoot-shaped protrusion is partially ruptured, it can flow out along the rupture in time, so as to realize the repair of the rupture or crack. Self-repairing, significantly reducing the occurrence of leakage caused by rupture.

The invention discloses an electrical connector and its terminal, which are used to connect with a mating piece along the front and rear direction, comprising: a connecting part, an electrical conducting part, a first plate extending from the connecting part and a connecting part connected with the second connecting part. A second plate connected to the side edge of the first plate, the extension direction of the first plate and the second plate is the same, there is a gap between the first plate and the second plate, a first contact piece is provided on the front section of the first plate, the second plate The front section of the second plate is provided with a second contact piece opposite to the surface of the first contact piece. The first contact piece and the second contact piece are used to be inserted into the mating piece and formed by stamping from the surface of the first plate or the second plate. A holding part is located behind the first contact piece and the second contact piece, a first protruding part protrudes from the first plate or the second plate to the gap and is located in front of the holding part, and a second protruding part is formed from the first The plate or the second plate protrudes to the gap and is located behind the holding part to ensure the gap between the first plate and the second plate, so that the first contact piece, the second contact piece and the docking piece can be in continuous and stable contact.

The invention discloses a thermal coupling jet concurrent flow tower with heat exchange tower plates. The thermal coupling jet concurrent flow tower comprises a tower body and a plurality of layers of continuous mass transfer tower plates. The tower body comprises an inner tower and an outer tower. Each layer of continuous mass transfer tower plate comprises a tower plate body with air rising holes, a cover hood and a liquid falling system. The portion between the inner tower and the outer tower is partitioned by the outer wall of the inner tower to form a rectifying section and a stripping section. The tower plates of the rectifying section are heat exchange tower plates communicated with the stripping section through heat exchange inlets and heat exchange outlets. The heat exchange inlets and the heat exchange outlets of the heat exchange tower plates are located in a mass transfer region outside the liquid falling system of the stripping section. According to the tower, the temperature difference of the rectifying section and the stripping section are effectively utilized to conduct heat exchange and heat recycling at the tower wall of the inner tower, the heat exchange area of the heat exchange tower plates is increased, the heat dissipation amount is effectively reduced, the heat transfer from the stripping section to the rectifying section is enhanced, the purposes of saving energy and reducing consumption are achieved, and thus the thermal coupling jet concurrent flow tower has greater economical benefits and wider application prospects.