Switch structure with display and playback functions
View Patent ↗A switch structure with display and playback functions includes a base, a circuit board, a holder, a display screen, and a cover. The circuit board is received in the base and has an electrical connection region. A supporting member and a flexible flat cable are provided below the holder. An elastic supporting element in the supporting member corresponds in position to the electrical connection region and is provided with an electrical connector. The display screen is provided on the holder and is electrically connected to the circuit board by the flexible flat cable. The cover covers the holder and the display screen. When the cover is pressed downward, thereby compressing the elastic supporting element, the electrical connector is contacted with, and closes the circuit of, the electrical connection region to connect the display screen to the circuit board. The switch structure features a small internal space and small thickness.
1. A switch structure with display and playback functions, to be mounted on an external circuit board on an external fixing frame, the switch structure comprising:
a base having a receiving space and a bottom, the bottom having two opposite lateral sides each provided with a plurality of through holes;
a circuit board received in the receiving space, the circuit board being peripherally provided with a plurality of pins corresponding in position to the through holes respectively in order for the pins to connect to the external circuit board on the external fixing frame, the circuit board having a surface provided with an electrical connection region;
a holder below which are provided a supporting member and a flexible flat cable, the supporting member having a groove, the groove being provided with an elastic supporting element corresponding in position to the electrical connection region, the elastic supporting element receiving an electrical connector therein;
a display screen provided on the holder and electrically connected to the circuit board by the flexible flat cable; and
a cover covering the holder and the display screen, the cover being completely or partially light-permeable such that the display screen is visible from outside the cover;
the switch structure being characterized in that: the electrical connection region is directly provided on the surface of the circuit board; and when the cover is pressed downward and thus drives the holder to compress the elastic supporting element, the electrical connector is brought into contact with the electrical connection region, turning the electrical connection region from an original open-circuit state into a closed-circuit state, such that the display screen is electrically connected to the circuit board, the switch structure therefore allowing an internal space thereof and a thickness thereof to be reduced.
2. The switch structure of claim 1 , wherein a portion or all of the cover is transparent or translucent.
3. The switch structure of claim 1 , wherein the holder has two opposite lateral sides each provided with a projection, and the holder is fixedly engaged in the cover via the projections.
4. The switch structure of claim 1 , wherein the base has two opposite outer lateral sides each provided with at least one engaging portion.
5. The switch structure of claim 4 , wherein the cover has two opposite outer lateral sides each provided with at least one engaging groove, the engaging grooves corresponding in position to and fixedly engaging with the engaging portions respectively.
6. The switch structure of claim 1 , wherein the elastic supporting element is made of a flexible non-metal material and capable of absorbing shock and cushioning impact.
7. The switch structure of claim 1 , wherein the electrical connector is made of graphite, which is electrically conductive.
8. The switch structure of claim 1 , wherein the electrical connection region is composed of two spaced-apart semicircular parts.