Electrical field device and expansion module for insertion into an electrical field device
AssigneePhoenix Contact GmbH & Co. KG
InventorsChristoph LEIFER, Andre KORREK
Life of this patent
Estimating the term…
Abstract
An electronic expansion module which has at least one circuit board, that has a contact region with contacts for mechanical and electrical contact-making with mating contacts connected to the circuit board of the expansion module and a circuit board recess formed such that, with the expansion module inserted into an opening formed on a side of the housing of an electrical field device for use in industrial control, the circuit board of the expansion module does not have any conductive connection to the electrical field device except in the contact region so that reliable electrical isolation between the interior of the device and the user is ensured.
Claims12
Expansion module for insertion into an electrical field device for use in industrial control, the electrical field device having a housing with an opening formed on one side thereof, at least one input, at least one output, and an electronic circuit which has a microcontroller, a memory and a circuit board, the expansion module comprising:
- a housing and
- an electronic circuit which has a circuit board,
- wherein the circuit board has mating contacts on an end for making electrical contact with contacts which are connected to the circuit board of the electrical field device, the mating contacts being accessible from outside of the housing such that, in an inserted state of the expansion module, there is no conductive connection to the field device outside of a region of the mating contacts.
Hardware unit, comprising an electrical field device and an expansion module, wherein the electrical field device has a housing with an opening formed on one side thereof, at least one input, at least one output, and an electronic circuit which has a microcontroller, a memory and a circuit board, and wherein the expansion module has a housing and an electronic circuit with a circuit board, wherein the circuit board of the expansion module has mating contacts on an end for making electrical contact with contacts which are connected to the circuit board of the electrical field device, the mating contacts being accessible from outside of the housing such that, with the expansion module inserted through the opening, the only conductive connection of the expansion module to the field device is within a region of the mating contacts.
Dependencies are inferred from the claim text.