Human-machine interface assemblies
Example human-machine interface (HMI) assemblies are disclosed. An example human-machine interface assembly can include a fascia. The human-machine interface assembly can further include a printed circuit board (PCB). The printed circuit board can have a light emitting diode (LED) to emit light through the fascia. The human-machine interface assembly can further include a backer that can be attached to the fascia.
1. A human-machine interface assembly, comprising:
a fascia;
a touch film having a touch cell and a first raised contact on the touch film;
a printed circuit board (PCB) having a second raised contact and a light emitting diode (LED);
a backer having an extension member, the extension member formed to press the first raised contact against the second raised contact by applying a force to the PCB at substantially the second raised contact; and
a heatstake passing through the PCB, wherein the LED is configured to emit light into the heatstake, and the heatstake is configured to emit the light through the fascia in an area of the fascia corresponding to the touch cell.
2. The human-machine interface assembly of claim 1 , further comprising a touch film having a touch cell, wherein the light illuminates an area of the fascia corresponding to the touch cell.
3. The human-machine interface assembly of claim 2 , wherein the heatstake passes through the touch cell.
4. The human-machine interface assembly of claim 2 , wherein the area corresponds to at least a center of the touch cell.
5. The human-machine interface assembly of claim 2 , wherein the heatstake is at least partially translucent or transparent.
6. The human-machine interface assembly of claim 2 , wherein the heatstake comprises a planar wall portion or single-axis concave shape.
7. The human-machine interface assembly of claim 1 , wherein the member is a stiff member.
8. The human-machine interface assembly of claim 1 , wherein the member is at least partially flexible, and comprises an angled finger shape, a z-shape, or an accordion shape.
9. The human-machine interface assembly of claim 1 , wherein the member includes a compressible portion.
10. The human-machine interface assembly of claim 1 , wherein the backer is selectively flexible between a first curved state and a second flexed state, the backer attached to the fascia by flexing the backer from the first state to the second state, and the member being disposed to apply the force to the PCB when the backer is attached to the fascia in the second state.
11. The human-machine interface assembly of claim 10 , wherein the second flexed state is generally parallel to the fascia.
12. The human-machine interface assembly of claim 10 , wherein the backer is attached to the fascia by a snap fitting or a screw while the backer is held in the second flexed state.