Button apparatus with a speaker
A button apparatus with a speaker ( 100 ) has a frame ( 104 ), a speaker ( 108 ), a flexible PCB ( 110 ), a metal dome ( 114 ), a rubber layer ( 116 ), and an operating button ( 120,124 ). The frame has a cavity ( 106 ) and the speaker is securely received in the cavity. The flexible PCB is located on the frame. The metal dome is located on the flexible PCB, and adapted to electrically connect with the flexible PCB. The rubber layer is located on the flexible PCB. The rubber layer has a protrusion ( 118 ) to press the metal dome so that the metal dome is electrically coupling to the flexible PCB. The operating button is located on the rubber layer. The button is adapted to press the protrusion, which in turn presses the metal dome.
1. A button apparatus with a speaker for a hand-held electronic device, comprising:
a frame;
a speaker received in the frame;
a flexible PCB positioned on the frame, forming a plurality of switch contact points thereon;
a plurality of metal domes positioned on the switch contact points, respectively;
an operating button positioned on the metal domes for depressing a selected one of the metal domes to electrically connect with a corresponding switch contact point;
a film layer between the operating button and the flexible PCB, the film layer holding the metal domes in position corresponding to the switch contact points; and
a rubber layer between the operating button and the film layer, the rubber layer forming protrusions toward the metal domes, respectively, wherein when the button is pressed, a selected one of the protrusions is motivated to depress a corresponding metal dome to electrically connect with a corresponding switch contact point.
2. The button apparatus with a speaker of claim 1 , wherein the film layer is a Mylar layer.
3. The button apparatus with a speaker of claim 1 , wherein the operating button includes a central control button and application buttons beside the control button, a gap is defined between the central control button and a front cover of the electronic device so that sound generated by the speaker can be transmitted forwardly through the front cover.
4. The button apparatus with a speaker of claim 1 , wherein the metal domes are disposed on different planes.