CIRCUIT BOARD AND TEMPERATURE MEASURING DEVICE

To provide a circuit board and a temperature measuring device which include fewer components, are small in space with low cost, and capable of reducing a temperature difference between a pair of terminals.SOLUTION: A circuit board 1 comprises: a first wiring pattern 11 connected to a first terminal 10; a second wiring pattern 21 connected to a second terminal 20; and a first wiring layer and a second wiring layer. The first wiring pattern 11 includes, on one of the first wiring layer and the second wiring layer, a first heat transfer part 12a extending from the first terminal 10 toward the second terminal 20. The second wiring pattern 21 includes, on the other of the first wiring layer and the second wiring layer, a first heat transfer part 22a extending from the second terminal 20 toward the first terminal 10. The first heat transfer part 12a of the first wiring pattern 11 and the first heat transfer part 22a of the second wiring pattern 21 face each other. The temperature measuring device includes the circuit board 1, and measures temperature via a thermocouple by connecting the thermocouple to the first terminal 10 and the second terminal 20.SELECTED DRAWING: Figure 5 【課題】少部品点数、小スペース且つ低コストで一対の端子間の温度差を小さくすることができる回路基板及び温度測定器を提供する。【解決手段】回路基板１は、第１端子１０に接続する第１配線パターン１１と、第２端子２０に接続する第２配線パターン２１とを有するとともに、第１配線層と第２配線層とを含み、第１配線パターン１１が、第１配線層と第２配線層との一方において第１端子１０から第２端子２０に向けて延在する第１伝熱部１２ａを有し、第２配線パターン２１が、第１配線層と第２配線層との他方において第２端子２０から第１端子１０に向けて延在する第１伝熱部２２ａを有し、第１配線パターン１１の第１伝熱部１２ａと第２配線パターン２１の第１伝熱部２２ａとが互いに対向している。温度測定器は、回路基板１を有し、第１端子１０及び第２端子２０に熱電対を接続することにより、熱電対を介して温度を測定する。【選択図】図５