Abstract: A water heating device is arranged between a water tank and a water faucet located below the water tank. Water from the water tank flows along a pipeline through the water heating device to the faucet. The water heating device includes a hydroelectric generation system including a turbine mounted in the pipeline and a generator coupled to the turbine by a shaft. Water flowing through the pipeline drives the turbine and thus causes the generator to generate electricity. The electricity is supplied to an electrical heater that heats the water flowing through the pipeline. A control unit controls the electricity supplied to the electrical heater thereby controlling the thermal energy transferred to the water. Thus, no external and independent energy source is required for heating the water.

Abstract: The present invention provides a new power switch apparatus design. Under this kind of design, a blue tooth module is placed in this power switch apparatus which receives signal from blue tooth control device. Control devices having blue tooth module may make up a wireless link to the power switch apparatus of this present invention. These devices having a blue tooth controllable function can remotely monitor and control the power switch of the power switch apparatus. On the other hand, the power switch apparatus may send the power consumption information itself to the a device that has a blue tooth controllable function. Therefore, the present invention's apparatus may provide a two-way communication between the power switch apparatus and the control device having blue tooth module.

Abstract: An improved electrical connector for computers adapted for connecting electric currents to cooling fans of CPUs or computer peripheral equipment. The electrical connector includes a front housing and a rear housing joined together integrally and a plurality of contacts each comprised of a front portion and a rear portion fitted respectively to the ends of a connection portion, the contact being placed inside the front and rear housings. The contacts are firmly held within the housing due to the configuration of the inner walls of the front and rear housings. The assembly process is simplified and costs reduced. The overall reduced size of the electrical connector occupies makes efficient use of the limited space of the computer.