| 摘要 |
A circuit case of resin (1A), for multiple circuit elements (31')-(33') placed in a recesses (20) each circuit element having lead terminals ((31a) and (31b) - (33a) and (33b)) respectively, with wiring metal segments fixed and supported in the case with lead terminal connecting portions (21)-(26) protruding into the recess has a sealing resin filled in the recess covering the circuit elements and the lead terminals. Placements of the circuit elements determined in consideration for the temperature distribution of the sealing resin can hinder peeling or cracking of the sealing resin. Such a more uniform heat distribution can be achieved by making the sum of the heat values or placement of the circuit elements symmetrical with respect to the centerline (91) between the two ends (1a) and (1c) of the case. Providing a receiving portion (37A) in one end (1c) of the case with a heat source or heat element (38) can compensate for a difference in heat value between the circuit elements, where circuit element (31') has or dissipates a greater heat value than the circuit element (33') which has a higher heat value than the circuit element (32'). The case can be of a connector type with terminals for external connection (41), (42) and be used in vehicle alternators. |
