Back to results
US 12,016,093 B2Granted
Sheet heater, and windshield device for vehicle
AssigneesNifco Inc., Kurabe Industrial Co., Ltd.
InventorsYasuki Kasetani, Toshikazu Nagai, Tatsunori Suzuki
Life of this patent
Estimating the term…
Abstract
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.
Claims12
A planar heating element comprising:
- a planar heating unit formed by a single strip-like heating element, the heating unit including
- a first heating segment located along an edge of a heating target area, and
- a second heating segment located in an area entirely surrounded by the first heating segment, wherein
- the second heating segment includes a plurality of meandering sections, the meandering sections arranged next to each other being superposed in a meandering direction,
- the first heating segment includes an outer portion and an inner portion, the outer portion includes a first end and a second end, and extends along the edge of the heating target area, the first end of the outer portion being connected to one end of the strip-like heating element and the second end of the outer portion being connected to one end of the second heating segment,
- the inner portion includes a first end and a second end, and extends along the edge of the heating target area, the first end of the inner portion being connected the other end of the strip-like heating element and the second end of the inner portion being connected to the other end of the second heating segment,
- the first end of the outer portion and the first end of the inner portion are arranged next to each other at the edge of the heating target area,
- the second end of the outer portion and the second end of the inner portion are arranged next to each other at the edge of the heating target area, and
- the strip-like heating element has a width that is greater than a width between parts of the strip-like heating element that are arranged next to each other.
6 more elements
A vehicle windshield device, comprising:
- a bracket attached to a windshield of a vehicle;
- a camera unit accommodated in the bracket;
- a light-shielding hood accommodated in the bracket;
- and
- the planar heating element configured to heat the light-shielding hood, the planar heating element comprising:
- a planar heating unit formed by a single strip-like heating element, the heating unit including
- a first heating segment located along an edge of a heating target area, and
- a second heating segment located in an area entirely surrounded by the first heating segment, wherein
- the second heating segment includes a plurality of meandering sections, the meandering sections arranged next to each other being superposed in a meandering direction,
- the first heating segment includes an outer portion and an inner portion,
- the outer portion includes a first end and a second end, and extends along the edge of the heating target area, the first end of the outer portion being connected to one end of the strip-like heating element and the second end of the outer portion being connected to one end of the second heating segment,
- the inner portion includes a first end and a second end, and extends along the edge of the heating target area, the first end of the inner portion being connected to the other end of the strip-like heating element and the second end of the inner portion being connected to the other end of the second heating segment,
- the first end of the outer portion and the first end of the inner portion are arranged next to each other at the edge of the heating target area,
- the second end of the outer portion and the second end of the inner portion are arranged next to each other at the edge of the heating target area, and
- the strip-like heating element has a width that is greater than a width between parts of the strip-like heating element that are arranged next to each other.
12 more elements
Dependencies are inferred from the claim text.