摘要:
In a heater device for motor vehicles of the type in which engine cooling water is supplied from one or both of an engine and a combustion heater to a heater core for heating the passenger compartment of a motor vehicle, a directional control valve with four distinct directions is disposed in a supply conduit of a circulation circuit extending between the engine and the heater core. The directional control valve includes a valve box having four intake and discharge ports, and a rotary spool disposed in the valve box and having a radial straight hole interconnecting a diametrically opposite pair of the intake and discharge ports and an arcuate peripheral recess connecting adjacent two of the intake and discharge ports.
摘要:
A printed board includes: an impedance matching member disposed along the periphery of a plurality of connecting pins for connecting a connector to signal lines on the printed board, the plurality of connecting pins being arranged in row and column directions; and a connecting portion for connecting the impedance matching member to a ground line of the printed board. The printed board according to the present invention is capable of suppressing the impedance mismatching of an ordinary connector having no special shield or the like for impedance matching.
摘要:
There is provided a board layout check apparatus for checking whether or not a guard wiring is appropriately formed, wherein a place which must be corrected is clearly displayed. The board layout check apparatus includes a printed board obtained by forming a guard wiring on a printed wiring layer, a check target wiring detecting unit which detects a check target wiring the influence of noise of which must be reduced from the printed wiring layer, a guard wiring exemption region calculating unit which calculates a guard wiring exemption region in which no guard wiring is formed for the check target wiring, a guard wiring detecting unit which detects a wiring portion in which a guard wiring is formed for the check target wiring, an error determination unit which determines whether or not the guard wiring is appropriately formed in a region except for the guard wiring exemption region, and an output unit which outputs a wiring portion determined as an error by the error determination unit.
摘要:
A casing is configured to be separable into a fire panel-side part which contains an air-mixing door and mode doors, and is integrally connected to an instrument panel, and a fire panel-side module which contains an evaporator, and a heater core. The fire panel-side module is connected to the instrument panel via the fire panel-side part. When the instrument panel is removed, only the fire panel-side part can be removed together with the instrument panel.
摘要:
There is provided a board layout check apparatus for checking whether or not a guard wiring is appropriately formed, wherein a place which must be corrected is clearly displayed.The board layout check apparatus includes a printed board obtained by forming a guard wiring on a printed wiring layer, a check target wiring detecting unit which detects a check target wiring the influence of noise of which must be reduced from the printed wiring layer, a guard wiring exemption region calculating unit which calculates a guard wiring exemption region in which no guard wiring is formed for the check target wiring, a guard wiring detecting unit which detects a wiring portion in which a guard wiring is formed for the check target wiring, an error determination unit which determines whether or not the guard wiring is appropriately formed in a region except for the guard wiring exemption region, and an output unit which outputs a wiring portion determined as an error by the error determination unit.
摘要:
A layout designing/characteristic analyzing apparatus for a wiring board includes a module library memory for storing in advance for each of wiring board modules which are constituents of the wiring board, moduled circuit information on moduled circuits which constitute a wiring board circuit, wiring information and an analysis model for use in characteristic analysis; an input section for inputting instructions on connection of the moduled circuits so as to construct a desired circuit; a module coupling section for connecting moduled circuits based on the inputted instructions, for determining a layout of the wiring board based on the wiring information of each module and for generating a coupled analysis model in which the analysis models of the modules are coupled; a characteristic analyzing section for analyzing the characteristics of the wiring board based on the generated coupled analysis model; and an output section for outputting the determined layout and the results of the characteristic analysis of the wiring board.
摘要:
A condenser of the type having a receiver tank formed integrally with the condenser has each of two opposed header tanks composed of a tube-receiving plate and a tank plate. The tank plate of one of the header tanks is formed of an extruded section member having a hollow portion forming a receiver tank and the extruded section member further has auxiliary passages. The tube-receiving plates of the header tanks are structurally independent so that formation of tube-receiving holes and application of cladding material can be performed for each tube-receiving plate, and a condenser having a plurality of flow paths can be constructed. In addition, if heat transfer between the hollow portion and the one header tank has a negative effect on the operation of the condenser, a heat insulating space is formed between the hollow portion and the one header tank for controlling heat transfer therebetween.
摘要:
A casing 21 of an automotive air conditioner is formed with a hole TH for accommodating a steering member S extending in a right-left direction of a vehicle. The hole TH extends through the casing 1 in the right-left direction of the vehicle.
摘要:
A printed board includes: an impedance matching member disposed along the periphery of a plurality of connecting pins for connecting a connector to signal lines on the printed board, the plurality of connecting pins being arranged in row and column directions; and a connecting portion for connecting the impedance matching member to a ground line of the printed board. The printed board according to the present invention is capable of suppressing the impedance mismatching of an ordinary connector having no special shield or the like for impedance matching.
摘要:
A layout designing/characteristic analyzing apparatus for a wiring board includes a module library memory for storing in advance for each of wiring board modules which are constituents of the wiring board, moduled circuit information on moduled circuits which constitute a wiring board circuit, wiring information and an analysis model for use in characteristic analysis; an input section for inputting instructions on connection of the moduled circuits so as to construct a desired circuit; a module coupling section for connecting moduled circuits based on the inputted instructions, for determining a layout of the wiring board based on the wiring information of each module and for generating a coupled analysis model in which the analysis models of the modules are coupled; a characteristic analyzing section for analyzing the characteristics of the wiring board based on the generated coupled analysis model; and an output section for outputting the determined layout and the results of the characteristic analysis of the wiring board.