摘要:
For an enhanced rigidity and suppressed occurrences of stress concentration, a solid-electrolyte fuel cell is configured with simplex cells, a metallic separator of a circular thin-sheet form having a gas introducing port and gas discharging ports in the central portion, and cell mounting parts for the simplex cells to be fixed thereto, another metallic separator of a circular thin-sheet form having a gas introducing port and gas discharging ports in the central portion, the separators defining a space in between, and a pair of flow channel members accommodated in the space and pressed to be brought into abutment, for communication of their channels with the gas introducing ports and the gas discharging ports to effect gas supply and gas discharge to and from the space, either flow channel member being joined, within the space, to one separator.
摘要:
For an enhanced rigidity and suppressed occurrences of stress concentration, a solid-electrolyte fuel cell is configured with simplex cells, a metallic separator of a circular thin-sheet form having a gas introducing port and gas discharging ports in the central portion, and cell mounting parts for the simplex cells to be fixed thereto, another metallic separator of a circular thin-sheet form having a gas introducing port and gas discharging ports in the central portion, the separators defining a space in between, and a pair of flow channel members accommodated in the space and pressed to be brought into abutment, for communication of their channels with the gas introducing ports and the gas discharging ports to effect gas supply and gas discharge to and from the space, either flow channel member being joined, within the space, to one separator.
摘要:
An information acquisition device is provided within a virtual plane including a coil axis of a coil-shaped antenna and having a perpendicular line orthogonal to an axis of rotation of a tire, such that the angle formed by the coil axis of the antenna relative to the tire rotational axis is within a range of 0° to 40°. The amount of attenuation of radio waves emitted from the antenna to the exterior of the tire is thereby reduced.
摘要:
A tire information transmitter measures ambient information in a tire cavity region including at least pressure to wirelessly transmit to outside the tire cavity region. The tire transmitter comprises: a sensor unit having a pressure sensor for measuring a pressure in the tire cavity region; a control unit for comparing a level of a pressure signal representing pressure measured by the sensor unit with a threshold value and for generating an operation signal indicating that the tire information transmitter is operating; and a transmitting unit for wirelessly transmitting the pressure signal or the operation signal. The control unit controls the transmitting of the transmitting unit and compares the level of the pressure signal with the threshold value continually after a supply of driving power is started, and has a comparing mode in which the transmitting unit transmits the operation signal at a first time interval, and a transmitting mode in which the transmitting unit transmits the pressure signal at a second time interval which is shorter than the first time interval. Further, the control unit irreversibly shifts from the comparing mode to the transmitting mode, once the level of the pressure signal exceeds the threshold value, as a result of the comparing.
摘要:
A tire information transmitter is mounted in a tire cavity region surrounded by a tire inner circumference surface and a wheel wall surface and senses atmospheric information in the tire cavity region to wirelessly transmit to outside the tire cavity region. The transmitter has a sensor for sensing atmospheric information in the tire cavity region, a circuit board having a processing circuit for processing a sensed signal from the sensor and having a transmitting circuit for wirelessly transmitting a processed signal and a battery for supplying power for driving the circuits. The battery is made as an encapsulated body of a thin plate shape, having a thin plate surface, by encapsulating battery components with an insulation film, and the encapsulated body has an area ratio of the thin plate surface to a thickness of the thin plate shape of not less than 200 mm, and a mass of not more than 5 g. A tire information acquiring system has the transmitter and a receiver for receiving a signal from the transmitter.
摘要:
A wheel assembly informing system includes: a plurality of wheel assembly identification indicating members that are respectively mounted to a plurality of wheel assemblies mounted to a vehicle body and have different characteristic appearances among the plurality of wheel assemblies, the characteristic appearances making the respective wheel assemblies mutually distinguishable in external appearance; a plurality of first communication devices that are respectively mounted to the plurality of wheel assemblies and transmit by wireless pieces of wheel assembly information on the respective wheel assemblies as well as self-held pieces of identification information from the wheel assembly sides; a storage device that is provided on the vehicle body side and stores a correlation between pieces of information on the characteristic appearances of the wheel assembly identification indicating members mounted to the plurality of wheel assemblies respectively and the pieces of identification information held by the first communication devices; a second communication device that receives the pieces of wheel assembly information and identification information transmitted from the first communication devices, extracts from the received pieces of identification information the pieces of information on the characteristic appearances corresponding to the received pieces of identification information by referring to the correlation stored by the storage device, and specifies each one of the plurality of wheel assemblies from which the pieces of wheel assembly information are transmitted; and an informing device that informs the specified wheel assemblies individually of states of the wheel assemblies based on the pieces of wheel assembly information.
摘要:
The transmission device is constituted by transmitting units which are accommodated within a case in a state so that, in an xyz orthogonal coordinate system, in the z axis direction only two transmitting units are disposed adjacently and so that planar conducting plates are opposed to each other; in the x axis direction, two adjacent transmitting units are disposed so that one end portion of one unit and the other end portion of the other unit are adjacent; and in the y axis direction, two adjacent transmitting units are disposed so that one end portion of one unit and the other end portion of the other unit are adjacent.
摘要:
A pneumatic fender management system that establishes a correspondence between a pneumatic fender in which an identification tag recording first identification information is embedded and a pressure sensor detecting a pneumatic pressure of the pneumatic fender and transmitting a detected value. The pressure sensor includes a sensor part detecting a pneumatic pressure of the pneumatic fender, a transmission part transmitting a signal from the sensor part; a reader part reading the information in the identification tag, and a control part having a memory part recording second identification information. The control part compares the first identification information read by the reader part with the second identification information in the memory part, and if the compared information is identical, causes the transmission part to transmit the pneumatic pressure information detected by the sensor part, and if the compared information is different, stops the sensor part and/or the transmission part.
摘要:
An antenna including first and second printed wiring boards and a plurality of linking conductors. The first and second printed wiring boards each has a respective plurality of rectilinear printed wiring patterns arranged in parallel at a specified interval, and respective through holes formed on both ends of each of the respective rectilinear printed wiring patterns. The plurality of linking conductors are configured so that both ends of the conductors are linked to the through holes that are formed in the first and second printed wiring boards so that the first printed wiring board and the second printed wiring board are disposed opposite each other, and so that the plurality of rectilinear printed wiring patterns formed on the first printed wiring board and the plurality of rectilinear printed wiring patterns formed on the second printed wiring board are conductively connected to each other in a helix.
摘要:
A tire-state detection device including a sensor, an antenna having a predetermined frequency, a detection circuit, a case, and a planar conductor. The sensor detects a predetermined physical state of a tire. The detection circuit transmits information regarding a result of a detection made by the sensor from the antenna as radio waves. The case houses the sensor, the antenna and the detection circuit, and allows radio waves to pass. The case fits on a rim in the tire when the tire-state detection device is to be used. The planar conductor is electrically insulated from the antenna at a position set a predetermined distance away from the antenna so as to form an interface between the antenna and the rim when the case is fitted to the rim, and the planar conductor is set to a potential that is equivalent to a reference potential of the detection circuit.