Connection structure and electrical junction box

A connection structure of relays and busbars forming a plurality of electrical circuits,

• wherein the relays include:
• a first relay configured to switch a first circuit as a predetermined electrical circuit between a powered state and a non-powered state;
• the first circuit being configured to be supplied with power in the powered state and to be supplied with no power in the non-powered state;
• and
• a second relay configured to switch a second circuit as a predetermined electrical circuit between a powered state and a non-powered state, the second circuit being configured to be supplied with power in the powered state and to be supplied with no power in the non-powered state,
• wherein the second circuit is different from the first circuit,
• wherein the busbars include:
• a first busbar connected to the first relay to form the first circuit;
• and
• a second busbar connected to the second relay to form the second circuit,
• wherein the first busbar and the second busbar are connected to be capable of releasing heat, and
• wherein the second busbar is configured to be in the non-powered state in the powered state of the first circuit.