Patent ID: 11964520
Assignee: SYSGRATION LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 1:
2. A packaging method for a tire pressure monitoring sensor, comprising:
a step of pre-assembling: assembling a sensing transmission module a d a frame to form a pre-set portion, the pre-set portion including multiple paths;
a step of placing: putting the pre-set portion into a cavity of a modeling unit, a positioning portion located in the cavity restricting the pre-set portion from moving transversely and toward an inner bottom of the cavity;
a step of pouring: pouring a rubber compound into the cavity, the rubber compound partially flowing to the inner bottom of the cavity via the paths, a portion of the rubber compound coating an outer surface of the pre-set portion and filling the cavity so as to form a case on the outer surface of the pre-set portion;
a step of hardening: the case being hardened and integrally formed with the pre-set portion so as to form a tire pressure monitoring sensor, the tire pressure monitoring sensor being removed from the cavity;
wherein the frame includes an outer ring and a valve coat which is integrally formed to the outer ring, the sensing transmission module includes a circuit board, a wireless antenna, a battery unit, an air pressure sensor unit and a control unit, the wireless antenna, the battery unit, the air pressure sensor unit and the control unit are electrically connected to the circuit board, the circuit board is mounted to the outer ring, the outer ring includes multiple pawls which hook the circuit board.