Thermostat with display and printed circuit board
An electronic assembly may have a display, a display holder, and a printed circuit board (PCB). The display may have a front side for viewing the display, a back side, and side walls extending between the front side and the back side. The display holder may have a recess for receiving at least part of the display, where the display holder may extend adjacent part of the front side of the display and adjacent at least part of the side walls of the display. The PCB may be secured relative to the display holder and adjacent the back side of the display. The PCB may be in operative communication with the display. In some cases, a spacer may be situated between the back side of the display and the PCB.
1. A thermostat for use in controlling an HVAC system of a building or other structure, the thermostat including a front, a back, a top and a bottom, the thermostat comprising:
a front window assembly includes a front side positioned toward the front of the thermostat and an opposing back side, the front window assembly including a front window secured relative to a display holder;
a display including a front side for viewing the display and a back side, the display including a flex tail extending from the display;
the display holder of the front window assembly including a recess for receiving at least part of the display, the display holder extending along at least part of the front side and one or more side walls of the display;
the front window assembly configured such that at least part of the display can be viewed from the front of the thermostat;
a printed circuit board including a front side and a back side, the front side of the printed circuit board positioned toward the back side of the display, wherein the printed circuit board is larger than the display with a lower extending portion of the printed circuit board extending out past the display in a downward direction toward the bottom of the thermostat;
the display holder including an alignment feature, and the printed circuit board includes a hole that is configured to accept at least part of the alignment feature of the display holder to help align the printed circuit board with the display holder;
a connector on the back side of the printed circuit board, wherein the flex tail of the display extends from the display, around a side wall of the printed circuit board and connects to the connector;
a back cover having a front side and a back side, the front side of the back cover positioned towards the back side of the printed circuit board;
the back cover secured to the front window assembly such that the front window assembly and the back cover collectively house the display and printed circuit board; and
the front side of the back cover including one or more wall portions that extend toward the printed circuit board and contact the back side of the printed circuit board.
2. The thermostat of claim 1 , wherein the flex tail comprises a ribbon cable.
3. The thermostat of claim 1 , wherein the display holder includes one or more features used for securing the printed circuit board to the display holder.
4. The thermostat of claim 3 , wherein the one or more features are spaced from the alignment feature.
5. The thermostat of claim 1 , wherein at least part of the hole of the printed circuit board intersects a side wall of the printed circuit board.
6. The thermostat of claim 1 , wherein the alignment feature of the display holder comprises a protrusion that extends into the hole of the printed circuit board.
7. The thermostat of claim 1 , wherein the front window is secured to the display holder.
8. The thermostat of claim 1 , further comprising an electrically insulating element positioned between the back side of the display and the front side of the printed circuit board.
9. The thermostat of claim 8 , wherein the electrically insulating element comprises a polymer.
10. The thermostat of claim 8 , wherein the electrically insulating element functions as a spacer that separates the back side of the display from the front side of the printed circuit board.
11. A thermostat for use in controlling an HVAC system of a building or other structure, the thermostat including a front, a back, a top and a bottom, the thermostat comprising:
a front window assembly including a front side positioned toward the front of the thermostat and an opposing back side, the front window assembly including a front window secured relative to a display holder;
a display including a front side for viewing the display and a back side;
the display holder of the front window assembly including a recess for receiving at least part of the display, the display holder extending along at least part of the front side and one or more side walls of the display;
the front window assembly configured such that at least part of the display can be viewed from the front of the thermostat;
a printed circuit board including a front side and a back side, the front side of the printed circuit board positioned toward the back side of the display, wherein the printed circuit board is larger than the display with a lower extending portion of the printed circuit board extending out past the display in a downward direction toward the bottom of the thermostat;
the display holder including an alignment feature, and the printed circuit board includes an aperture that is configured to accept at least part of the alignment feature of the display holder to help align the printed circuit board with the display holder;
a back cover having a front side and a back side, the front side of the back cover positioned towards the back side of the printed circuit board;
the back cover secured relative to the front window assembly such that the front window assembly and the back cover collectively house the display and printed circuit board; and
wherein the printed circuit board is held relative to the display holder at least in part by one or more latches.
12. The thermostat of claim 11 , wherein:
the display further comprises a flex tail extending from display; and
the printed circuit board comprises a connector on the back side of the printed circuit board, wherein the flex tail of the display extends from the display, around a side wall of the printed circuit board and connects to the connector.
13. The thermostat of claim 11 , wherein the front side of the back cover includes one or more wall portions that extend toward the printed circuit board and contact the back side of the printed circuit board, and wherein one or more of the wall portions of the back cover, in conjunction with at least part of the lower extending portion of the printed circuit board, define a temperature sensor pocket, wherein the printed circuit board includes a temperature sensor mounted in the temperature sensor pocket.
14. The thermostat of claim 11 , wherein the display holder includes one or more features used for securing the printed circuit board to the display holder.
15. The thermostat of claim 14 , wherein the one or more features are spaced from the alignment feature.
16. The thermostat of claim 11 , further comprising an electrically insulating element positioned between the back side of the display and the front side of the printed circuit board.
17. A thermostat for use in controlling an HVAC system of a building or other structure, the thermostat including a front, a back, a top and a bottom, the thermostat comprising:
a front window assembly includes a front side positioned toward the front of the thermostat and an opposing back side, the front window assembly including a front window secured relative to a display holder;
a display including a front side for viewing the display and a back side, the display including a flex tail extending from the display;
the display holder of the front window assembly including a recess for receiving at least part of the display, the display holder extending along at least part of one or more side walls of the display;
the front window assembly configured such that at least part of the display can be viewed from the front of the thermostat;
a printed circuit board including a front side and a back side, the front side of the printed circuit board positioned toward the back side of the display, wherein the printed circuit board is larger than the display with a lower extending portion of the printed circuit board extending out past the display in a downward direction toward the bottom of the thermostat;
the display holder including an alignment feature, and the printed circuit board includes a hole that is configured to accept at least part of the alignment feature of the display holder to help align the printed circuit board with the display holder;
a connector on the back side of the printed circuit board, wherein the flex tail of the display extends from the display, around a side wall of the printed circuit board and connects to the connector;
a back cover having a front side and a back side, the front side of the back cover positioned towards the back side of the printed circuit board;
the back cover secured to the front window assembly such that the front window assembly and the back cover collectively house the display and printed circuit board; and
the front side of the back cover including one or more wall portions that extend toward the printed circuit board and contact the back side of the printed circuit board.
18. A thermostat for use in controlling an HVAC system of a building or other structure, the thermostat including a front, a back, a top and a bottom, the thermostat comprising:
a front window assembly including a front side positioned toward the front of the thermostat and an opposing back side, the front window assembly including a front window secured relative to a display holder;
a display including a front side for viewing the display and a back side;
the display holder of the front window assembly including a recess for receiving at least part of the display, the display holder extending along at least part of one or more side walls of the display;
the front window assembly configured such that at least part of the display can be viewed from the front of the thermostat;
a printed circuit board including a front side and a back side, the front side of the printed circuit board positioned toward the back side of the display, wherein the printed circuit board is larger than the display with a lower extending portion of the printed circuit board extending out past the display in a downward direction toward the bottom of the thermostat;
the display holder including an alignment feature, and the printed circuit board includes an aperture that is configured to accept at least part of the alignment feature of the display holder to help align the printed circuit board with the display holder;
a back cover having a front side and a back side, the front side of the back cover positioned towards the back side of the printed circuit board; and
the back cover secured relative to the front window assembly such that the front window assembly and the back cover collectively house the display and printed circuit board.
19. The thermostat of claim 18 , wherein the front side of the back cover includes one or more wall portions that extend toward the printed circuit board and contact the back side of the printed circuit board.
20. The thermostat of claim 19 , wherein one or more of the wall portions of the back cover, in conjunction with at least part of the lower extending portion of the printed circuit board, define a temperature sensor pocket, wherein the printed circuit board includes a temperature sensor mounted in the temperature sensor pocket.
21. The thermostat of claim 18 , further comprising an electrically insulating element positioned between the back side of the display and the front side of the printed circuit board.