8results about How to "Reduce solder joints" patented technology

This patent application belongs to the field of energy storage equipment technology, specifically relating to an installation method for a side-cooled battery pack, including the following steps: S1: placing multiple battery modules and cooling pipes on a base plate, such that the cooling pipes sequentially pass around both sides of each battery module; S2: using a pressing mechanism, simultaneously pressing the cooling pipes and battery modules inward from both sides of the base plate, so that the sidewalls of the cooling pipes contact the sidewalls of the battery modules; S3: passing a top cover through both ends of the cooling pipes and installing it on the base plate, installing two adapter structures on the outside of the top cover and connecting them to both ends of the cooling pipes; it also relates to a side-cooled battery pack; using the above-mentioned battery pack and installation method has the advantages of high assembly efficiency, good heat dissipation, low leakage risk, and low condensation.

The utility model provides an improved roller structure which comprises two bearing seats, a rolling shaft, a roller skin and a connecting key, the number of the bearing seats is two, the two bearing seats are oppositely arranged, the two ends of the rolling shaft are installed in the bearing seats, the roller skin is wrapped outside the rolling shaft, a connecting disc is arranged between the roller skin and the rolling shaft, and the connecting key is connected with the connecting disc. The connecting disc is fixed to the rolling shaft through the expansion sleeve, and the periphery of the connecting disc is welded to the interior of the roller skin. A double-key structure is replaced by a double-expansion-sleeve structure, a key groove does not need to be machined, meanwhile, a hub structure does not need to be used, the structure is simplified, meanwhile, the production cost is reduced, due to the fact that the hub structure is not used, welding spots are reduced, machining after correction is convenient, meanwhile, due to the fact that the welding spots are reduced, the machining difficulty is greatly reduced, and the product consistency is enhanced; the expansion sleeve is fastened in an auxiliary mode through the tensioning block, and the product stability is improved.

The application discloses a kind of dual-frequency constant temperature crystal oscillator and its manufacturing method, it is related to crystal oscillator technical field, it includes ceramic base and ceramic bottom plate, both are integrally formed using LTCC process;High-frequency quartz crystal and low-frequency quartz crystal are respectively placed in independent sealed cavity, and unified heating and precision temperature control are realized by high-thermal-conductivity diamond copper substrate, metallized heat-conducting hole and partition temperature sensing chip;Two-way signal is output through independent interconnection path, and crosstalk is lower than-50dBm.The application realizes dual-frequency high-stable low-noise output under similar volume, meets the demand of high-integration, high-reliability frequency source for flight control system.

The application belongs to the technical field of antennas and provides an integrated structure of a combiner and a phase shifter and an electrically adjustable antenna. The integrated structure of the combiner and the phase shifter comprises a first PCB board and a second PCB board. A first split-feed output port on a first phase shifter on the first PCB board is electrically connected to a first input port on a first combiner circuit on the first PCB board through a connecting line. The first phase shifter works at a first frequency band. A second split-feed output port on a second phase shifter on the second PCB board is electrically connected to a second input port on a second combiner circuit on the second PCB board through a connecting line. The second phase shifter works at a second frequency band. The first combiner circuit and the second combiner circuit are electrically connected to form a combiner. An output port of the combiner is arranged on the first PCB board. Thus, the combiner and the phase shifter are integrated, the structure is compact, a large number of connecting cables are saved, and the cost is reduced.

The present application relates to a kind of railway freight car composite material side wall and manufacturing method, it is related to railway freight train technical inspection technical field.The present application includes: skin, inner skin and outer skin are made of;First support component, set in the inside of skin, including crossbeam component and side vertical beam;Second support component, set in the inside of skin, including vertical beam component and oblique connecting beam;Filler component, fill in the inside of skin;Crossbeam component, vertical beam component, side vertical beam are all composite material structure scheme, compared with the most advanced aluminum alloy side wall can reduce weight 30% or more;Crossbeam component, vertical beam component, side vertical beam, oblique connecting beam and third sandwich material are solidified in the inside of skin, the outer surface structure of side wall is simple, for no outside column structure, so as to can make full use of the clearance of wagon, also facilitate cleaning residual in wagon goods;Using solidification forming scheme, can reduce welding point or rivet point, so as to can improve the structural strength, reduce production labor intensity.

The utility model discloses a convenient mahjong table foot support of dismounting, including support leg, horizontal pole and foot iron, the foot iron is located at the inboard of horizontal pole and support leg junction, and is connected with support leg through fixed screw, the horizontal pole is connected assembly with support leg through foot iron. The utility model provides a convenient mahjong table foot support of dismounting, and the connection between each other can be realized through the fixed bolt on foot iron and is inserted on support leg, and only need to weld between foot iron and horizontal pole, can reduce the welding spot, can reduce the space effect of whole after dismounting, and convenient conveying. Through the cooperation of the I-shaped insert and the socket, the I-shaped insert can be inserted into the socket, the connection assembly between the horizontal pole and the foot iron is realized, welding is not needed, reverse sliding is also convenient, the dismounting between the I-shaped insert and the socket is further realized, thereby the space effect of whole after dismounting is further reduced, and the utility model discloses convenient loading and unloading.

The application discloses an inner heat type palladium membrane purifier, which comprises an outer shell and an inner shell, a heat preservation layer is filled between the outer shell and the inner shell, the inner shell comprises a diffusion chamber and a preheating chamber, the palladium membrane purifier further comprises a heating pipe which is inserted into the diffusion chamber, the heating pipe is internally provided with an electric heating element, a palladium alloy pipe is spirally wound outside the heating pipe, one end of the diffusion chamber is provided with an end face flange, the end face flange is provided with a pure hydrogen interface and a tail gas interface, the pure hydrogen interface is communicated with the diffusion chamber and the outside of the outer shell, the tail gas interface is connected with one end of the palladium alloy pipe, the other end of the palladium alloy pipe is connected with a raw material gas preheating coil pipe, the other end of the preheating coil pipe is extended out of the outer shell and is provided with a raw material hydrogen interface, and the palladium membrane purifier further comprises a temperature measuring sleeve pipe. The hydrogen purifier disclosed by the application has the advantages of compact layout, small device volume, few welding points of a palladium membrane assembly, reliable process, long service life, uniform heating temperature of the device, small heat loss, high purification and separation efficiency of hydrogen, and large gas processing capacity per unit volume.

This invention discloses a converter socket, comprising: a housing; sockets including an L-pole socket, an N-pole socket, and an E-pole socket; pins including an L-pole pin, an N-pole pin, and an E-pole pin, wherein the L-pole pin is connected to the L-pole socket, the N-pole pin is connected to the N-pole socket, and the E-pole pin is connected to the E-pole socket; and a partition, which separates the sockets and the pins and has a first mounting portion, a second mounting portion, and a third mounting portion, wherein the L-pole pin is located in the first mounting portion, the N-pole pin is located in the second mounting portion, and the E-pole pin is located in the third mounting portion. The L-pole pin, N-pole pin, and E-pole pin can be directly mounted via the first, second, and third mounting portions of the partition, eliminating the need for injection molding to form pin brackets before assembly, thus reducing material usage and production costs.