In an advantageous embodiment, the metal plate or the conductor-track layer is formed from at least one of the following materials: aluminum, copper, an aluminum-containing alloy, a copper-containing alloy. Thus, the technical advantage is achieved that the metal plate is made from materials which are easy to handle and have good thermal conductivity. This improves the cooling effect of the metal plate and also enables it to be easy to manufacture.

In an advantageous embodiment, the conductor-track layer is formed by electrical conductor tracks. Thus, the technical advantage is achieved that the power supply components, for example electrical components of a switched-mode power supply, of the electric assembly are electrically conductively connected to one another in a simple manner.

In an advantageous embodiment, the electrical insulation layer is a thermally conductive dielectric layer. Thus, the technical advantage is achieved that thermal energy generated by the power supply component, for example electrical components of a switched-mode power supply, can be dissipated to the metal plate owing to the thermally conductive dielectric layer. This further increases the cooling effect.

In an advantageous embodiment, the metal plate is provided as shield for an alternating electromagnetic field which can be emitted by the electrical power supply component. Thus, the technical advantage is achieved that the metal plate has another additional function in addition to the cooling function. In addition to cooling, it is also used for shielding alternating electromagnetic fields which are emitted by the power supply component of the electric assembly. Thus, the electric assembly can also be used in an EMC-sensitive environment.