Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Koji Yoshimoto

Norio Abe

Kazuaki Hioki

Hiroyuki Ogino

Kazumi Nagayama

Takaaki Hyoudou

Yoshimitsu Fujiwara

Masaki Hanada

Masanori Nishikawa

Yukio Abe

Naohito Asami

Takahito Ishii

Naruaki Akai

Satoshi Arima

Kazuyuki Kohara

Hideaki Konishi

Takashi Sugio

Ryuta Kondou

Shinichi Maruyama

Ryoichi Koga

A seat heater includes a seating heater, a protection device of a non-resettable type, a base material, and a protecting heater. The protection device has a first surface and a second surface opposite to the first surface. The base material is a sheet having a first covering portion covering the first surface and a second covering portion covering the second surface, and is folded so that the first covering portion and the second covering portion face each other. The protecting heater heats the protection device. The protecting heater includes a pair of first heating portions and a second heating portion. The pair of first heating portions are formed as a meandered shape only on a surface, which faces the second covering portion, of the first covering portion. The second heating portion is disposed between the pair of first heating portions, and formed as a meandered shape both on the surface, which faces the second covering portion, of the first covering portion, and on a surface, which faces the first covering portion, of the second covering portion.

Seat heater

An in-vehicle heating device according to the present invention is provided on a lower part of a front side of a seat cushion () serving as a seating unit of a vehicle seat (). The in-vehicle heating device includes: an air feeder () including a suction opening () through which external air is sucked into the air feeder (); a warm air generator () including a heater () therein, the warm air generator () being configured to heat air fed from the air feeder () to generate warm air; and a blow-out unit configured to blow out the warm air from the warm air generator (), such that the warm air is blown out forward of the seat cushion (). At least a part of the blow-out unit is positioned at a front of the seat cushion (), and doubles as a front shield, which serves as a decorative member.

In-vehicle heating device

A seat heater includes: a base material; and a heater wire disposed on the base material. The base material has a fold-back portion projecting from an edge of the base material where a cutout portion is formed. The heater wire is disposed on the fold-back portion. In a state where the fold-back portion is folded back toward a base material side, a proximal portion of the fold-back portion is positioned inside the edge of the base material. With such a configuration, the seat heater whose temperature elevation performance is not deteriorated can be realized.

Seat heater and seat cover with same

A battery heater device which heats a battery with a plurality of cells mounted on a vehicle comprises a first heater part which heats cells positioned at an outer side in the battery; a second heater part which heats cells positioned at an inner side in the battery; and a controller which controls power to be supplied to the first and second heater parts; wherein the controller reduces the power supplied to the second heater part at a predetermined timing after start of the power supply to the first and second heater parts, thereby improving quick-heating performance of the battery and heating the battery more uniformly with use of simple arrangement.

Battery heater device

A planar heating element has an electrical insulating substrate, at least one pair of electrodes that includes thin metal wires covered with conductive cover layers and that is placed on a surface of the electrical insulating substrate, a polymer resistor that is placed on the electrical insulating substrate and that is supplied with electricity from the electrodes, and electrical insulating cover materialthat covers the electrodes and the polymer resistor and that is made to adhere to the electrical insulating substrate by hot melt, and sectional shape of the conductive cover layers is of an ellipse in general with long axis parallel to the surface of the electrical insulating substrate.

Planar heating element and manufacturing method for same

A seat heater includes a seat-warming heater which is connected to a power source and warms a person sitting on a seat, an over-temperature-preventing part which disconnects the connection between the seat-warming heater and the power source when the over-temperature-preventing part is heated to a predetermined temperature so as to prevent over-temperature of the seat-warming heater, and a heater which heats the over-temperature-preventing part, wherein the over-temperature-preventing part is non-return type, and the heater for the over-temperature-preventing part is arranged to cover opposite portions of the over-temperature-preventing part, thereby realizing both higher output and improved safety.

Seat heater with over-temperature protection

A planar heating device and a seat equipped with the device include: first and second warming heaters connected in parallel with electric power source; thermistor; thermostat connected in series with second warming heater; a heating part, i.e., first warming heater, that heats thermistor and thermostat; and controller to control temperatures of first and second warming heaters in accordance with temperature information from thermistor. For a period until thermostat turns off, quick-heating property is improved by energizing first and second warming heaters.

Planar heating device and seat with same

A seat with a heating device is provided which realizes a configuration in which the arm, palms and finger tips of a user can easily be warmed when the user uses the seat with the heating device. When the user is seated in a seat with a heating device and feels cold due to it being winter, the user controls a switch to heat the seat, whereby energization of heating elementsis started which are connected to a power supply via electric wires. When the energization of the heating elementsis started, heat generated thereby is conducted to skin materialsand surfaces of the skin materials are warmed. When the user places his or her arm on an armrest portion, the arm is warmed via the skin material, whereby the user can feel the sensation of comfortableness.

Growing community of inventors

Shiga, Japan

Koji Yoshimoto