| 摘要 |
A computer keyboard includes a body portion and a heating tray. The body portion is arranged with keys for performing typical keyboard functions. The heating tray includes a universal serial bus (USB) interface, a left wrist rest that is shaped to support a left wrist of a user, and a right wrist rest that is shaped to support a right wrist of the user. Each of the wrist rests includes a heating element that connects with an USB power supply for providing electrical energy to the heating tray. Each of the heating elements converts the electrical energy to heat when the USB power supply is plugged into the heating tray via the USB interface, and heats the respective wrist rests to a predefined temperature range. |
