Minisize fluid forced convection device

The invention relates to a miniature fluid forced convection device for the on-line monitoring of electrical equipment, which comprises an integral joint. A convection cavity communicated with the outlet of a valve is arranged in the integral joint, an air exhaust/oil bleeding unit is arranged above the convection cavity, and an air exhaust/oil bleeding bolt capable of being screwed up or loosened, a rubber seal ring and an air exhaust/oil bleeding outlet are arranged in the air exhaust/oil bleeding unit. A test cavity for containing a gas testing unit is communicated with the convection cavity and is arranged in the integral joint, and an oil-gas separation film is arranged between the convection cavity and the test cavity. A convection drive unit capable of driving insulating oil to carry out forced convection between the oil tank of the electrical equipment and the convection cavity of the integral joint through the valve is arranged in the convection cavity. The convection drive unit can be the combinatio