3results about How to "Prevent short circuits" patented technology

The utility model relates to battery technical field, the utility model provides a battery cover plate, including the cover plate body, the lower plastic is located one side of cover plate body, and the lower plastic side away from cover plate body is equipped with the mounting groove, and, the pole is located the mounting groove, and the through -hole is seted up on the at least one side wall of mounting groove, and the through -hole is linked together with the mounting groove. The battery cover plate provided by the utility model aims at solving the problem that the lithium dendrite is formed at the pole in the traditional technology, and the lithium dendrite growth is connected with the pole and the cover plate body, which can easily cause the short circuit of the battery.

The utility model provides a fully-sealed oil-proof speed reduction motor for a range hood, which relates to the technical field of range hoods and comprises a speed reduction box body composed of a shell with an accommodating cavity and a cover body connected with the shell; the shell is an open type containing cavity formed by four side faces and a bottom face which are integrally formed, an output end bearing is fixedly arranged on the bottom face, a gear set and a transmission shaft meshed with the gear set are installed in the containing cavity, and the transmission shaft is in clearance fit with the output end bearing and penetrates through the output end bearing and the shell; the motor is fixedly connected with one side face of the shell. The output end of the motor penetrates through a through hole in the side face to enter the containing cavity of the shell to be meshed with the gear set. And the cover body is fixedly connected and arranged on the open surface of the shell in a matched mode, and a tail end bearing is further fixedly arranged on the cover body. According to the utility model, oil smoke can be prevented from permeating into the reduction gearbox and the motor from a gap in the speed reducing motor by setting a sealing measure, so that the service life of the speed reducing motor is prolonged.

The invention discloses a resistance welding bridge optimization method for industrial graphic computer-aided manufacturing, which comprises the following steps of: reading data of a resistance welding layer, and traversing to find a group of windows, which do not meet requirements, of a resistance welding bridge; judging according to the type of the solder resist windowing, wherein the solder resist windowing is divided into three types: two solder resist windowing in one group have BGA (Ball Grid Array) or SMD (Surface Mount Device) attributes; one solder resist window in one group has a BGA or SMD attribute, and the other solder resist window in one group has a non-BGA or SMD attribute; the two resistance welding windows in one group do not have the BGA or SMD attribute, the resistance welding windows are cut down in an equal proportion mode, and the steps are repeated till all resistance welding windows are processed, and according to the importance BGA < gt > of the bonding pad, the resistance welding windows can be processed according to the BGA < gt > of the bonding pad; m < M > D < gt >; pTHgt, PTHgt; vIAgt, VIAgt; the NPTH sequence is effectively adjusted to meet the requirements of the production process, and the reject ratio caused by the solder bridge problem can be effectively improved.