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AssigneeBeijing Aurasky Electronics Co., Ltd.
InventorsFeng Zhang, Changhua Mou, Di Zhao, Lei Hu, Chen Sui, Qi Wang, Xiao Li, Zhaoxing Li, Qingli Yang, Zhen Peng, Bowen Deng
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Provided is pressure sensor, including top cover assembly, upper seat, movable membrane; each of top and bottom of upper seat is provided with opening, top cover assembly seals opening at top of upper seat, movable membrane seals opening at bottom of upper seat; top cover assembly, upper seat, movable membrane form pressure reference chamber, and pressure sensor detects gas pressure on side of movable membrane away from top cover assembly based on state of movable membrane; at least one gas guide passage is formed at top cover assembly, and is configured to connect pressure reference chamber to outside; top cover assembly includes at least one blocking member configured to seal gas guide passage; and blocking member seals gas guide passage after being heated to temperature higher than preset melting temperature to be at least partially melted and being cooled to solidify. Manufacturing method for pressure sensor is further provided.
A pressure sensor, comprising a top cover assembly, an upper seat, and a movable membrane, wherein each of a top and a bottom of the upper seat is provided with an opening, the top cover assembly seals the opening at the top of the upper seat, the movable membrane seals the opening at the bottom of the upper seat, the top cover assembly, the upper seat, and the movable membrane form a pressure reference chamber, the pressure sensor is configured to detect a gas pressure on a side of the movable membrane away from the top cover assembly based on a state of the movable membrane, wherein, at least one gas guide passage is formed at the top cover assembly, and is configured to connect the pressure reference chamber to the outside, the top cover assembly comprises at least one blocking member configured to seal the gas guide passage, wherein the blocking member before melting is disposed in the gas guide passage, and the blocking member seals the gas guide passage after being heated to a temperature higher than a preset melting temperature to be at least partially melted and being cooled to solidify.
Dependencies are inferred from the claim text.