US Patent 9829259 Heat exchanger plate and a plate heat exchanger

The invention refers to a heat exchanger plate and a plate heat exchanger. The heat exchanger plates are arranged beside each other in the plate heat exchanger to define several first plate interspaces for a first medium and several second plate interspaces for a second medium. Each heat exchanger plate comprises a heat transfer area, an edge area, which extends around and outside the heat transfer area, and a functional device, which is configured to receive or produce a signal. The heat exchanger plate also comprises a communication module provided on the heat exchanger plate. The communication module comprises an electronic circuit connected to the functional device and a module antenna. The communication module is configured to permit wireless communication of the signal with a master unit via the module antenna.