Patent ID: 7287413
Filing Date: 2007-10-30
Classification: G01N,Y10S

Abstract:
1. A gas sensor unit comprising: a gas sensor including a gas detecting element, an electrode provided on the gas detecting element and a sensor terminal connecting to the electrode so as to transmit an output signal from the gas detecting element; and a sensor cap for transmitting the output signal to an external device, the sensor cap including a cap terminal electrically connecting to the sensor terminal and an enclosing member bonding to the gas sensor so as to form an internal space in cooperation with the gas sensor, said cap terminal resiliently connecting to the sensor terminal so that the gas sensor and the gas sensor cap are detachable from one another, wherein the enclosing member includes a communicating hole through which the internal space is in communication with space outside the gas sensor unit, and the communicating hole is gas-permeably and watertightly closed by a filter member.