All-solid-state electrocaloric refrigerator

The invention discloses an all-solid-state electrocaloric refrigerator. A third electrode layer serves as a center layer. An electrocaloric refrigeration unit cold end formed by sequentially attaching a second electrocaloric material layer and a second electrode layer to one side is connected with a refrigeration sheet. An electrocaloric refrigeration unit heat end formed by sequentially attaching a first electrocaloric material layer and a first electrode layer to the other side is connected with a cooling sheet. The all-solid-state electrocaloric refrigerator further comprises a first power source and a second power source, wherein the first power source is connected with the cold end so as to provide pulse voltages, and the second power source is connected with the heat end so as to provide pulse voltages. The electrocaloric material layers are made of ferroelectric materials or relaxor ferroelectric materials with an electrocaloric effect. Film materials with excellent heat conduction but without electric