This intake temperature and pressure sensor component adopts an integrated structure of metal and plastic overmolding injection. Metal inserts (such as the metal rings at both ends for installation and fixing) are accurately pre-embedded in the plastic matrix. The plastic matrix is molded through the mold cavity to form a contour that fits the installation space of the automotive intake system, including the protruding structure for sensing, the plug-in end for circuit connection, and the cavity for coordinated positioning with the metal insert, realizing the close combination of metal and plastic and ensuring mechanical strength and electrical connection stability.
From the perspective of mold adaptation, the mold needs to design high-precision inserts and cavities according to the shape, size and pre-embedded position of the metal insert to ensure that the metal insert does not shift during the injection molding process and the plastic is filled uniformly without missing material. The hot runner injection molding technology is adopted, combined with reasonable mold temperature control, so that the plastic (such as common engineering plastics) can be well wetted and coated on the metal surface, realizing strong bonding force at the metal-plastic interface, resisting the environmental tests such as vibration and temperature cycle under automotive working conditions, and ensuring the long-term stable operation of the sensor.
Through precise molding, the mold endows this component with the following functions: First, it provides temperature and pressure signal collection for the automotive intake system. The metal insert ensures the installation rigidity and electrical requirements such as grounding, and the plastic matrix realizes signal transmission, protection and adaptive installation; Second, with the structural stability of metal overmolding injection, under complex automotive working conditions (high temperature, vibration, oil pollution, etc.), it maintains the mechanical integrity and electrical performance of the sensor, ensures that the engine accurately obtains intake parameters, optimizes combustion efficiency, and contributes to the power and fuel consumption performance of the whole vehicle.
