4results about How to "Avoid weight gain" patented technology

The application discloses a tumor electric field treatment system and an electrode sheet and a tumor treatment device thereof, wherein the electrode sheet comprises a substrate, a plurality of electrode sheet units, a plurality of temperature sensors and a multiplexing unit arranged on the substrate, each electrode sheet unit can apply an alternating voltage, each temperature sensor is arranged corresponding to one electrode sheet unit to detect the temperature at the corresponding electrode sheet unit, the multiplexing unit is connected with each temperature sensor, and the multiplexing unit is configured to output the analog temperature signals detected by each temperature sensor in time sharing mode, so that greater temperature sensor coverage can be achieved without increasing the number of cable cores, the weight of the electrode sheet is prevented from being too large, the pasting effect of the electrode sheet is maintained, meanwhile, the electrode sheet outputs analog temperature signals, the setting of an ADC sampling unit and the like on the electrode sheet is avoided, the overall weight of the electrode sheet is further reduced, and the pasting effect of the electrode sheet is improved.

This invention provides a fixing device for rocket engine nozzles, including a ring frame. Several connecting arms are evenly distributed around the center of the ring frame at its lower end. A support arm is provided at the upper end of the ring frame corresponding to each connecting arm. Each connecting arm includes an integrally formed docking portion and a connecting portion. The docking portion is vertically arranged, and the connecting portion extends outward from the ring frame, with a connecting corner piece installed at its free end. The docking portion is fixed to the ring frame by a connecting assembly. The support arm includes a fixing frame, with an arc-shaped support plate at one end extending outward from the ring frame. The support plate is inclined, gradually tilting towards the center of the ring frame from bottom to top, and has a heat insulation structure on its outer side. The ring frame includes a paper honeycomb core material, with a carbon fiber composite panel covering the outer wall of the paper honeycomb core material. This invention effectively achieves lightweight and high specific stiffness, integrating structural load-bearing and thermal protection, avoiding the weight increase caused by external heat insulation devices.

The application provides a multilayer fiber reinforced composite material and a preparation method thereof. The multilayer fiber reinforced composite material is prepared by hot pressing and curing a prepreg stack, and the prepreg stack comprises: an alumina fiber plain cloth prepreg located at the center, and high-modulus poly-p-phenylene benzobisoxazole fiber unidirectional cloth prepregs, alumina fiber unidirectional cloth prepregs and high-strength glass fiber plain cloth prepregs symmetrically distributed on both sides of the alumina fiber plain cloth prepreg from inside to outside. The alumina fiber plain cloth prepreg, the high-modulus poly-p-phenylene benzobisoxazole fiber unidirectional cloth prepreg, the alumina fiber unidirectional cloth prepreg and the high-strength glass fiber plain cloth prepreg are all combined by corresponding fiber cloth and epoxy resin adhesive film through hot pressing. The multilayer fiber reinforced composite material is super-thin, has strong impact resistance and puncture resistance, and is environmentally friendly in process.

The invention discloses a new energy automobile lightweight battery protection frame structure, and belongs to the field of new energy automobile protection. The new energy automobile lightweight battery protection frame structure comprises protection frames located at the front end and the rear end of a battery, a connecting piece with a second mounting hole is arranged at the upper end of the battery, and first mounting holes corresponding to the second mounting hole are formed in the two sides of the interior of each protection frame. According to the lithium battery protection structure, the problem that when an existing lithium battery protection structure is used and protects an internal battery, the damaged part caused by protection of the internal battery is complex to replace is solved, important positions of the lithium battery protection structure are independently wrapped and protected through the first protection sheet, the second protection sheet and the third protection sheet, and the protection effect of the lithium battery protection structure is improved. The independent protection sheets can be directly replaced, so that the battery protection frame structure is convenient to maintain and repair, and unnecessary weight increase is avoided while redundant protection structures are avoided.