Phase transformation solar energy heat storage device for constant-temperature laboratory

A phase transformation solar energy heat storage device for a constant-temperature laboratory relates to a solar energy heat storage device, which solves the problem that at present, the phase transformation solar energy heat storage device for the constant-temperature is not provided. A plurality of phase transformation containers are sequentially laid on the upper end face of a base plate, a rectangular side frame is horizontally secured on the base plate, the phase transformation containers are arranged in the rectangular side frame, a cover plate is fixedly arranged on the upper end face of the rectangular side frame, and phase transformation heat reservation working media are installed in the phase transformation containers. The solar energy heat storage device is provided with the phase transformation containers, the phase transformation heat reservation working media in the phase transformation containers change solid or liquid phases within a certain range of temperature, thereby absorbing and storing