TPMS SENSOR UNIT OF TIRE PRESSURE MONITERING SYSTEM HAVING INJECTING AIR

摘要

The present invention relates to a protruding type TPMS sensor unit (10) having an air inlet port in a sub-housing and an air inlet capable of air injection without removal of the TPMS sensor during tire air injection, An air injection hole insertion groove 120 through which an air injection hole T of a tire is inserted is formed on the bottom surface of the injection hole 110 in the vertical direction and coaxial with the air injection hole 110 , A lower housing (100) having a seating part (130) having a predetermined contact surface on the inside of the rim and formed with hollow holes at equal radial intervals; An upper housing 200 having a fastening space 220 for fastening with the lower housing 100 and a receiving space 230 formed on the fastening space 220; And an air injection protrusion provided coaxially with the air inlet 100 and fitted into the air injection protrusion insertion groove 210 of the upper housing 200. The coupling space 220 is formed in the lower housing 200 The lower housing thread 140 formed along the inner upper side wall of the lower housing 200 and the upper housing thread 240 formed along the outer peripheral side wall of the upper housing 200 are engaged with each other, The upper housing 100 is superposed and coupled to form the accommodation space 230 at the upper portion.