High low temperature low pressure combined test case

The utility model discloses a high low temperature low pressure combined test case, including inclosed box and controller, the lateral wall of box distributes and has heating coil and system cold coil pipe, heating coil is electric heating pipe, system cold coil pipe connects the compressor, install vacuum tube on the lateral wall of box, vacuum tube passes through the tube coupling vacuum pump, the last solenoid valve A that is provided with of vacuum tube, still install temperature sensor and pressure sensor on the box, temperature sensor and pressure sensor all are connected with the controller electricity, electric heating pipe is connected with the controller electricity, be provided with solenoid valve B on the pipeline of connection system cold coil pipe and compressor, solenoid valve A and solenoid valve B all are connected with the controller electricity. The beneficial effects of the utility model are that: through the heating coil and system cold coil pipe, intensification or cooling that can be qu