The
relay structure comprises a control
assembly, a power
assembly and a cover plate, the front face of the control
assembly is bonded with the interior of the power assembly, the back face of the control assembly is electrically connected with the interior of the power assembly to form an assembly part, and the cover plate covers the assembly part in a sealed and buckled mode. The assembling method of the
relay structure comprises the following steps: S1, assembling the control assembly; s2, assembling a power assembly; s3, assembling the assembly parts; and S4, sealing assembly is carried out. A traditional single-face bonding installation structure is changed into a laminated structure through a two-face bonding installation mode of the control assembly and the power assembly, so that the
power density of the product is improved, the power device is directly connected with the
ceramic tube shell, main
heating power is directly guided into the bottom of the product from the interior of the tube shell, and the
power density of the product is improved. The input heating device and the output heating device are isolated through the control assembly, the internal
heat balance of the product is improved while
miniaturization is achieved, and the purpose of improving the
power density of a traditional
ceramic tube shell is achieved.