Thermoelectric module
A thermoelectric module includes an insulating substrate, plural electrodes formed on a component side of the insulating substrate, plural peltier elements each mounted on and electrically connected to the electrodes, and a mark for image recognition formed at least one of the electrodes, the mark for image recognition having lightness and/or saturation which is different from lightness and/or saturation of the electrode on an image. An entire of the electrode is usable as an electrical conduction path.
1. A thermoelectric module, comprising:
an insulating substrate;
a plurality of electrodes formed on a component side of the insulating substrate;
a plurality of peltier elements each mounted on and electrically connected to the electrodes; and
a mark for image recognition formed on at least one of the electrodes, the mark for image recognition having lightness and/or saturation which is different from lightness and/or saturation of the electrode on an image; wherein
an entire of the electrode is usable as an electrical conduction path,
the mark for image recognition is a plating layer of the at least one of the electrodes,
the plating layer is an electroless plating film or an electroplating film,
the electrode includes a fixture side facing the insulating substrate and a component side provided at a reverse side of the fixture side,
the component side of the electrode includes a mounting region on which the peltier elements are mounted and a general region which is a region other than the mounting region of the electrode,
the mark for image recognition is formed on the general region of the electrode,
the mark for image recognition includes a protruding configuration that is formed on at least a portion of the general region of the electrodes, and
a length of the mark for image recognition from the component side in a thickness direction of the electrode is shorter than a length of the peltier elements from the component side in the thickness direction.
2. The thermoelectric module according to claim 1 , wherein
the mark for image recognition includes a plurality of marks for image recognition and each of the marks for image recognition is formed on the separate electrode.
3. The thermoelectric module according to claim 1 , wherein the mark for image recognition is a black nickel plating.
4. The thermoelectric module according to claim 1 , wherein an entirety of the mark for image recognition is between the peltier elements.
5. The thermoelectric module according to claim 1 , wherein the mark for image recognition is between the peltier elements and extends an entire width of the electrode.