2results about How to "Drain in time" patented technology

The application relates to the technical field of battery packs and specifically provides a battery pack and a power utilization device. The battery pack comprises a box body and a battery pack; the box body comprises a frame and a bottom plate, the bottom plate is arranged at the bottom of the frame, the frame is provided with an exhaust port, the bottom plate is provided with a plurality of grooves at intervals and forms an exhaust passage, the exhaust passage is in communication with the exhaust port; the battery pack is arranged in the box body, and the bottom plate supports the battery pack; the battery pack comprises a plurality of battery cells, the battery cells are provided with explosion-proof valves, the explosion-proof valves are arranged towards the bottom plate, and the explosion-proof valves at least partially project and coincide with the exhaust passage. In the application, the plurality of grooves are arranged at intervals on the bottom plate to form the exhaust passage, the explosion-proof valves on the battery cells are arranged towards the exhaust passage, high-temperature gas and eruption matter sprayed from the explosion-proof valves can be timely discharged from the exhaust passage and smoothly discharged from the battery pack through the exhaust port in the case of thermal runaway, exhaust blockage is prevented, thermal runaway is prevented from further spreading, and the safety of the battery pack is ensured.

This invention discloses a polymer antistatic wood-plastic composite flooring, relating to the field of wood-plastic composite flooring, comprising joists and wood-plastic composite panels. At least two joists and wood-plastic composite panels are provided, with the two joists arranged parallel to each other and the two wood-plastic composite panels slidably fitted onto the tops of the two joists. A connecting structure is provided on adjacent sides of the two wood-plastic composite panels. In practical operation, when the wood-plastic composite panels are installed outdoors, rainwater will enter the interior of the moisture-proof ring through the heat dissipation holes during rainy weather and drain out from both ends of the moisture-proof ring, reducing the accumulation and erosion of rainwater on the top of the wood-plastic composite panels, thus improving service life. The addition of multiple sets of heat dissipation holes increases the friction on the top of the wood-plastic composite panels, preventing slippage during rainy weather. Because rainwater drains quickly, it dries rapidly after the rain stops due to wind and temperature variations.