Patent ID: 11882669
Assignee: CANAAN CREATIVE CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  F  G | IPC F  G  H

Claim 17:
18. The circuit board of claim 1, wherein:
the circuit board is disposed in a heat-dissipation air duct comprising an air inlet and an air outlet;
the row direction of the plurality of heat-generating components is parallel to a direction from the air inlet to the air outlet;
when the circuit board is in a working state, an average temperature of heat-generating components other than a first heat-generating component closest to the air inlet in a first row is less than an average temperature of heat-generating components other than a second heat-generating component closest to the air inlet in a second row;
the first row is parallel to an upper edge of the circuit board;
the first row is closer to the upper edge of the circuit board than other rows of the circuit board that are parallel to the upper edge; and
the first row is closer to the upper edge of the circuit board than the second row.