Patent ID: 8164008

Claim:
An electrical apparatus comprising: a circuit substrate unit including: a cable formed of a plurality of lead wires in a bundle; and a circuit substrate including a core-wire soldered portion provided with a plurality of electrodes to which core wires of the plurality of lead wires are soldered and connected; a casing including: an opposed wall portion facing one surface of the circuit substrate where the plurality of electrodes are provided, the opposed wall portion having a first opening portion so that the core-wire soldered portion is accessible therethrough, and a peripheral wall portion integrally formed with the opposed wall portion and surrounding an end face of the circuit substrate, the peripheral wall portion having a second opening portion formed continuously with the first opening portion, for allowing the cable to extend out therethrough; and a cap member fitted in the first and second opening portions to allow the cable to extend out through the second opening portion, wherein the peripheral wall portion and the cap member are shaped so that the cable may be sandwiched between the peripheral wall portion and the cap member when the cap member is fitted in the first and second opening portions.