A sheet heater comprises a sheet form heating unit configured from a wire heater. The heating unit comprises a first heating unit positioned along a peripheral edge of the area subject to heating, and a second heating unit positioned at an area surrounded by the first heating unit. The second heating unit comprises a plurality of meandering parts, with mutually adjacent meandering parts overlapping each other in the meandering direction. In the heating unit, the width (WL) of the wire heater is greater than the width (WP) between mutually adjacent wire heaters.
H05B 3/20 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
B60S 1/02 - Cleaning windscreens, windows, or optical devices
H05B 3/10 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
H05B 3/84 - Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
[Problem] To provide a heating device that is for an outside-vehicle information acquisition means, has high heating efficiency, can be made thin, and has a high degree of freedom in the layout of a heater. [Solution] A heating device 100 heats a window glass portion Wa located on an information acquisition path of an outside-vehicle information acquisition means 50 that is disposed inside the vehicle and that acquires information from outside the vehicle, the heating device comprising: a hood 10 provided inside the vehicle, below the information acquisition path 5 of the outside-vehicle information acquisition means 50; and a heating element 20 provided on the surface or inside of the hood 10 and having a PTC heater layer 21.
B60S 1/60 - Cleaning windscreens, windows, or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for signalling devices, e.g. reflectors
B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
H05B 3/14 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
H05B 3/20 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
H05B 3/84 - Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
In a vent control valve for a fuel tank, a housing (23, 50) receiving a float assembly (26, 27, 28) therein is provided with a communication hole (24) passed across a wall of the housing, and an opening of the communication hole facing an interior of the housing is directly exposed to an interior of the housing when the float assembly is in a low position and overlaps with a peripheral wall of the float assembly when the float assembly is in a high position. By suitably selecting the size of the communication hole and/or the number thereof, a desired delay in the dropping of the liquid fuel level in the housing following the filling up of the fuel tank can be achieved. Thereby, overfilling of the fuel tank can be avoided. As the float assembly drops to such an extent as to clear the communication hole, the fuel vapor is allowed to flow more freely into the interior of the housing via the communication hole, and this causes an increase in the speed of the float to drop. Thereby, the venting of the fuel tank can be resumed at an appropriately earlier stage following the filled up state of the fuel tank. Thus, the closing and opening of the communication with the exterior of the fuel tank can be accomplished even when the vertical dimension of the housing is relatively small.
An electronic device mounting structure for fitting an ECU (2) (electronic device) in an open space (4) formed in a device mounting housing (1) and for holding the ECU fitted in the open space (4) by a holding finger (9) formed on the device mounting housing (1), includes a stopper (10) formed in the device mounting housing (1) so as to be juxtaposed with the holding finger (9), the stopper being configured to prevent the ECU (2) from falling out of the device mounting housing (1).
B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
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