Abstract: A urine kit includes a collector and a piece of underwear. The collector includes a container and a short guide tube. The container defines a temporary storage space therein and an opening communicating with the temporary storage space, and is provided with an outlet tube communicating with the temporary storage space. The short guide tube, which is in watertight engagement with a portion of the container around the opening, includes a connection section having a neck portion and a grooved portion. The short guide tube has an inner surface, to which the gradient of a tangent thereof changes as being made along the inner the surface, such that an annular surface area with a minimum diameter is formed at the neck portion; an inflexion surface area is formed at the grooved portion; a flow directing surface area extends from the inflexion surface area.

Abstract: A control device for controlling the operation of a fuel cell system is disclosed, including a microprocessor, a voltage detection circuit, a current detection circuit, a hydrogen pressure detection circuit, a temperature detection circuit, an air flow rate control circuit that is controlled in a pulse width modulation manner, and a pulse signal generation circuit. The air flow rate control circuit is controlled by the microprocessor for regulating the air flow rate through an air supply conduit in a pulse width modulation manner in accordance with output current of a fuel cell stack. The pulse signal generation circuit is controlled by the microprocessor to generate pulse signals for controlling hydrogen flow through a hydrogen supply conduit. The control device monitors the operation conditions of the fuel cell system and performs a preset control process to control the operation of the fuel cell stack so as to optimize the efficiency and overall performance of the fuel cell system.

Abstract: A fuel cell stack includes a number of modularized plate structures including an anode plate, a cathode plate, water coolant plates and air coolant plates. The anode and cathode plates are designed to form hydrogen and air channels that allow for uniform distribution and even flow of hydrogen and air through the channels with the channels of each particular plate having substantially identical length in order to enhance electrochemical reaction between hydrogen and oxygen contained in the air with respective catalysts in the fuel cell stack. Also a sufficient amount of air is allowed to flow through the cathode plate to enhance output power of the fuel cell stack. The coolant plates adapt a split design, which introduces turbulence in the coolant channels to enhance heat removal.

Abstract: A gasket assembly for gas channels of a fuel cell stack is disclosed. A central part of a bipolar plate of the fuel cell stack is formed with a plurality of channels which is connected to a gas passage via a collective channel and a plurality of communication channels. A reception region is formed across a middle section of the communication channels and a pressure resistant packing is mounted in the reception region, forming a smooth and flat plane with the ridges of the partitions outside the reception region. A gasket is mounted between the bipolar plate and the membrane electrode assembly and acts with the packing to form a gastight gasket assembly in the form of a dual gasket structure.

Abstract: An integrated bipolar plate module for a fuel cell stack includes a cathode fluid flow plate, an anode fluid flow plate and a coolant fluid flow plate which is mounted and sandwiched between the cathode fluid flow plate and the anode fluid flow plate. The cathode fluid flow plate is formed with a plurality of channels for conveying a cathode gas, the anode fluid flow plate is formed with a plurality of channels for conveying an anode gas, and the coolant fluid flow plate is formed with a plurality of channels for conveying a coolant between the cathode fluid flow plate and the anode fluid flow plate. In assembly, every two adjacent cell units of the fuel cell stack are separated by a bipolar plate module, so that the cathode gas is conveyed to an adjacent cathode gas diffusion layer through the channels of the cathode fluid flow plate and the anode gas is conveyed to an adjacent anode gas diffusion layer through the channels of the anode fluid flow plate respectively.

Abstract: A functional test and demonstration apparatus for a fuel cell power system includes a control device, a fuel cell stack, at least one electric load, a hydrogen gas supply pipeline, an air supply pipeline, and a connection and display panel. The connection and display panel communicates physically and electrically with the various components of the fuel cell power system, and displays various electric parameters and hydrogen gas supply and air supply conditions during operation of the fuel cell power system, facilitating the performance of a functional test or demonstration of the fuel cell power system.

Abstract: An electric scooter includes a scooter frame having a rear cover inside which a fuel cell stack is mounted in an inclined manner and a center cover connected to the rear cover by a footstep section. A front cover is mounted to a front side of the scooter frame and forms an interior space with the center cover. A hydrogen canister holder is mounted in the interior space for retaining a number of hydrogen storage canisters in an inclined manner for supply of hydrogen to the fuel cell stack. The canisters are arranged in pair on opposite sides of a centerline of the scooter frame. A heat dissipation system including a coolant container, a heat exchanger, and a pump is further provided in the interior space to maintain the hydrogen storage canisters at a proper operation temperature.

Abstract: An electric scooter includes a scooter frame having a rear cover inside which a fuel cell stack is mounted in an inclined manner and a center cover connected to the rear cover by a footstep section. A front cover is mounted to a front side of the scooter frame and forms an interior space with the center cover. A hydrogen canister holder is mounted in the interior space for retaining a number of hydrogen storage canisters in an inclined manner for supply of hydrogen to the fuel cell stack. The canisters are arranged in pair on opposite sides of a centerline of the scooter frame. A heat dissipation system including a coolant container, a heat exchanger, and a pump is further provided in the interior space to maintain the hydrogen storage canisters at a proper operation temperature.

Abstract: A control device for controlling the operation of a fuel cell system is disclosed, including a microprocessor, a voltage detection circuit, a current detection circuit, a hydrogen pressure detection circuit, a temperature detection circuit, an air flow rate control circuit that is controlled in a pulse width modulation manner, and a pulse signal generation circuit. The air flow rate control circuit is controlled by the microprocessor for regulating the air flow rate through an air supply conduit in a pulse width modulation manner in accordance with output current of a fuel cell stack. The pulse signal generation circuit is controlled by the microprocessor to generate pulse signals for controlling hydrogen flow through a hydrogen supply conduit. The control device monitors the operation conditions of the fuel cell system and performs a preset control process to control the operation of the fuel cell stack so as to optimize the efficiency and overall performance of the fuel cell system.

Abstract: A fuel cell assembly having a self-recycling humidifier. The fuel cell assembly includes a humidifier and a fuel cell module communicating with an external hydrogen source. The fuel cell module chemically combines hydrogen from the hydrogen source and oxygen from introduced air to produce electricity and water. The produced water is removed by an airflow. The moisture is recycled by the humidifier to humidify the introduced air.

Abstract: A module for humidifying a fuel cell and a unit cell therein. The unit cell includes a first guiding plate, a second guiding plate, and an intermediate layer. The first guiding plate, communicating with the fuel cell, includes a plurality of first grooves so that air flows to the fuel cell via the first grooves. The second guiding plate, communicating with the fuel cell, includes a plurality of second grooves so that gas from the fuel cell flows out of the unit cell via the second grooves. The second grooves face the first grooves. The intermediate layer is disposed between the first guiding plate and the second guiding plate, and prevents the air flowing in the first grooves from mixing with the gas flowing in the second grooves. Water content in the gas flowing in the second grooves is transmitted to the first grooves.

Abstract: A water draining structure for gas reaction plate of a fuel cell stack includes a gas inlet, a gas outlet, a plurality of wide gas channels parallelly arranged to communicate with the gas inlet, and a plurality of narrow gas channel parallelly arranged to communicate with the gas outlet, all provided on the gas reaction plate. Each of the wide gas channels is communicable with a corresponding one of the narrow gas channels. When an amount of reacting gas is guided into the gas reaction plate, it encounters a significant change in cross-section area from the wide gas channels to the narrow gas channels. A substantial pressure difference between the wide and narrow gas channels is generated, providing a force to blow off moisture in the wide and narrow gas channels.

Abstract: A fuel cell stack includes a number of modularized plate structures including an anode plate, a cathode plate, water coolant plates and air coolant plates. The anode and cathode plates are designed to form hydrogen and air channels that allow for uniform distribution and even flow of hydrogen and air through the channels with the channels of each particular plate having substantially identical length in order to enhance electrochemical reaction between hydrogen and oxygen contained in the air with respective catalysts in the fuel cell stack. Also a sufficient amount of air is allowed to flow through the cathode plate to enhance output power of the fuel cell stack. The coolant plates adapt a split design, which introduces turbulence in the coolant channels to enhance heat removal.