Abstract: A key structure is provided, including a housing, a shaft body, a first magnetic component and a second magnetic component. The housing has a bottom portion and a top portion which are opposite to each other, and has a first opening located at the top portion. The shaft body is coupled with the housing by passing through the first opening, and the shaft body is suitable for being pressed to move in a pressing direction from the top portion to the bottom portion. The first magnetic component is arranged on the shaft body. The second magnetic component is arranged on the housing. The first magnetic component and the second magnetic component are separated by the housing.

Abstract: A key structure is provided, including a housing, a shaft body, a first magnetic component and a second magnetic component. The housing has a bottom portion and a top portion which are opposite to each other, and has a first opening located at the top portion. The shaft body is coupled with the housing by passing through the first opening, and the shaft body is suitable for being pressed to move in a pressing direction from the top portion to the bottom portion. The first magnetic component is arranged on the shaft body. The second magnetic component is arranged on the housing. The first magnetic component and the second magnetic component are separated by the housing.

Abstract: A tower-based kinetic energy generation method and device, generally including two buckets that are movable up and down alternately to carry water to an upper location to allow water to rush down to impact and drive power generation units to generate electrical power thereby achieving circulative power generation. The two buckets are mounted to a tower frame and are driven by a drive unit to move. The tower frame has a bottom in which a water storage trough is formed. Rotary mechanisms are arranged above the water storage trough and the rotary mechanisms are coupled to power generation units. Two sides of the tower frame are each provided with a water storage tank. The water storage tank has a bottom from which a pipe extends to a location above the respective rotary mechanism.

Abstract: A high building power generation device includes a plurality of water storage tanks and at least one power generation unit. The water storage tanks are arranged at specific floors of a high building so that a predetermined vertical distance is provided between adjacent ones of the water storage tanks. The water storage tanks are connected to each other with pipes. A control valve is mounted at a connection of each water storage tank with the pipes. The power generation unit is arranged at a bottom floor of the high building. The pipes connecting with the water storage tanks have a lower opening that is located above the power generation unit. The water storage tanks accumulate and store used water from multiple floors and the control valves are openable to release the used water to impact and drive the power generation unit to generate electrical power.

Abstract: A tower-based power generation method and device, generally including two buckets that are movable up and down alternately to carry water to an upper location to allow water to rush down to impact and drive power generation units to generate electrical power thereby achieving circulative power generation. The two buckets are mounted to a tower frame and are driven by a drive unit to move. The tower frame has a bottom in which a water storage trough is formed. Rotary mechanisms are arranged above the water storage trough and the rotary mechanisms are coupled to power generation units. Two sides of the tower frame are each provided with a water storage tank. The water storage tank has a bottom from which a pipe extends to a location above the respective rotary mechanism.

Abstract: A high building power generation device includes a plurality of water storage tanks and at least one power generation unit. The water storage tanks are arranged at specific floors of a high building so that a predetermined vertical distance is provided between adjacent ones of the water storage tanks. The water storage tanks are connected to each other with pipes. A control valve is mounted at a connection of each water storage tank with the pipes. The power generation unit is arranged at a bottom floor of the high building. The pipes connecting with the water storage tanks have a lower opening that is located above the power generation unit. The water storage tanks accumulate and store used water from multiple floors and the control valves are openable to release the used water to impact and drive the power generation unit to generate electrical power.

Abstract: A kinetic energy generation device includes a rotation mechanism, a speed increaser coupled to the rotation mechanism, and a power generation element coupled to the speed increaser. The rotation mechanism includes a central shaft and an outer circumferential zone surrounding the central shaft. The outer circumferential zone receives therein partition plates set in radial direction and spaced from each other so that the partition plates show upward inclination. The central shaft is rotatably coupled to the speed increaser, and the speed increaser is coupled to the power generation element so as to constitute the kinetic energy generation device. The rotation mechanism is arranged under a water flow in order to allow each of the receiving zones to receive a weight of water, so that the weight of water causes the rotation mechanism to rotate in a given direction and thus drives the speed increaser to generate electrical power.

Abstract: A kinetic energy generation device includes a rotation mechanism, a speed increaser coupled to the rotation mechanism, and a power generation element coupled to the speed increaser. The rotation mechanism includes a central shaft and an outer circumferential zone surrounding the central shaft. The outer circumferential zone receives therein partition plates set in radial direction and spaced from each other so that the partition plates show upward inclination. The central shaft is rotatably coupled to the speed increaser, and the speed increaser is coupled to the power generation element so as to constitute the kinetic energy generation device. The rotation mechanism is arranged under a water flow in order to allow each of the receiving zones to receive a weight of water, so that the weight of water causes the rotation mechanism to rotate in a given direction and thus drives the speed increaser to generate electrical power.

Abstract: A thin key structure includes a keycap, a key body, an elastic piece and a base. The keycap has a first side wall. The key body has a second side wall forming a hollow chamber in which the keycap can be put to connect the elastic piece. The inner of the second side wall is provided with guiding portions for guiding the keycap to move steadily in the key body. With the keycap being put in the key body, the total height of the key structure can be reduced, and the vertical moving distance of the keycap with respect to the key body to press the elastic piece can be shortened. Thus, the thin key structure can be made more compact.

Abstract: A thin key structure includes a keycap, a key body, an elastic piece and a base. The keycap has a first side wall. The key body has a second side wall forming a hollow chamber in which the keycap can be put to connect the elastic piece. The inner of the second side wall is provided with guiding portions for guiding the keycap to move steadily in the key body. With the keycap being put in the key body, the total height of the key structure can be reduced, and the vertical moving distance of the keycap with respect to the key body to press the elastic piece can be shortened. Thus, the thin key structure can be made more compact.

Abstract: A power generation device includes a tower forming top and bottom reservoirs and a plurality of vertically arranged compartments between the top and bottom reservoirs. Each compartment is separated from the next lower compartment by a partition that defines a discharge opening. A rotary mechanism is arranged in each compartment and includes a rotary shaft carrying receptacles having openings set in different orientations. The shaft is coupled to a dynamo. Water is deposited in the top reservoir and is allowed to flow downward into the next lower compartment through the discharge opening for filling into the receptacles to cause rotation of the shaft, which in turn drives the dynamo to generate electrical power. Water flowing downward into the bottom reservoir can be selectively pumped back to the top reservoir for maintaining cyclic operation of the power generation device.

Abstract: An apparatus and a method for determining output signals according to pressure and depressing time mainly includes a timer, a scanner and a keyboard connecting electronically to the timer and the scanner. The keyboard has a plurality of button keys. When in use, the timer is set to zero and stops counting time. Then the scanner scans the keyboard to locate the button key being depressed by an external force. A signal is output depending on the external force. A first signal is output when the external force is small. When the external force is large and the time counted by the timer does not exceed a selected time period, the first signal is output. When the time counted by the timer exceeds the selected time period, a second signal is output. Thus input information may be entered through fewer button keys, and injury that might otherwise occur by using composite keys may be avoided.

Abstract: An input device for alarming excessive striking force adopted for use on electronic instruments alerts users when the button keys are being depressed with excessive force, and preventing hand injury. The invention includes a button key structure, a first conductor membrane, a spacing membrane, a second conductor membrane and an alarm. When the button key structure is subject to an excessive external force, the button key structure connects electronically to a first conductor to output signals, and the first conductor also runs through an opening to connect electronically to a second conductor to output signals to the alarm to alert the presence of the excessive force.

Abstract: A keyswitch structure has a slender key cap and an integral balance structure for a key with a short press stroke. The keyswitch structure has a casing and at least one key. The casing has at least one pair of hooks arranged on a bottom face thereof, and at least one receiving groove. The key has a key cap, a connection portion parallel extended from a bottom portion of the key cap, and a balance rod integrally arranged on an end side of the connection portion. The balance rod has two sides arranged in the two hooks, respectively. The present invention can simplify the assembly steps, and efficiently prevent the key from swinging and being wedged.

Abstract: A keyswitch structure has a slender key cap and an integral balance structure for a key with a short press stroke. The keyswitch structure has a casing and at least one key. The casing has at least one pair of hooks arranged on a bottom face thereof, and at least one receiving groove. The key has a key cap, a connection portion parallel extended from a bottom portion of the key cap, and a balance rod integrally arranged on an end side of the connection portion. The balance rod has two sides arranged in the two hooks, respectively. The present invention can simplify the assembly steps, and efficiently prevent the key from swinging and being wedged.

Abstract: An apparatus and a method for determining output signals according to pressure and depressing time mainly includes a timer, a scanner and a keyboard connecting electronically to the timer and the scanner. The keyboard has a plurality of button keys. When in use, the timer is set to zero and stops counting time. Then the scanner scans the keyboard to locate the button key being depressed by an external force. A signal is output depending on the external force. A first signal is output when the external force is small. When the external force is large and the time counted by the timer does not exceed a selected time period, the first signal is output. When the time counted by the timer exceeds the selected time period, a second signal is output. Thus input information may be entered through fewer button keys, and injury that might otherwise occur by using composite keys may be avoided.

Abstract: An input device for alarming excessive striking force adopted for use on electronic instruments alerts users when the button keys are being depressed with excessive force, and preventing hand injury. The invention includes a button key structure, a first conductor membrane, a spacing membrane, a second conductor membrane and an alarm. When the button key structure is subject to an excessive external force, the button key structure connects electronically to a first conductor to output signals, and the first conductor also runs through an opening to connect electronically to a second conductor to output signals to the alarm to alert the presence of the excessive force.

Abstract: A keyboard with interchangeable connection specification, comprises an input/output circuit board for DIN, PS/2 or USB connection specification and replaceably assembled within a main body of the keyboard. The input/output circuit board has signal transmitting end connected to the signal receiving end of a membrane circuit of the keyboard. The keyboard further comprises an openable cover on a panel of the main body of said keyboard and corresponding to the location of the input/output circuit board. The openable cover is opened to replace the input/output circuit board mounted within the keyboard for required connection specification. The keyboard further comprises a plurality of hot keys on the keyboard and at location corresponding to the openable cover. Each said hot key has a key top, a rubber dome and associated internal circuit.

Abstract: A keyboard with interchangeable connection specification, comprises an input/output circuit board for DIN, PS/2 or USB connection specification and replaceably assembled within a main body of the keyboard. The input/output circuit board has signal transmitting end connected to the signal receiving end of a membrane circuit of the keyboard. The keyboard further comprises an openable cover on a panel of the main body of said keyboard and corresponding to the location of the input/output circuit board. The openable cover is opened to replace the input/output circuit board mounted within the keyboard for required connection specification.