Mitsubishi Heavy Industries Thermal Systems, Ltd.

Yasuo Katayama

Nobuya Nakagawa

Tomoki Hase

Hideaki Tatenoi

Soichiro Fujita

The purpose of the present invention is to provide a light guide plate with which it is possible to prevent light unevenness and improve appearance, and a light emitting device using the same. A light guide plate () is provided with: a light incidence surface () on which light is incident; a light emission surface () which faces the light incidence surface () and from which light incident from the light incidence surface () is emitted; and a flat plate-shaped light guide member () which guides the light incident from the light incidence surface () to the light emission surface (). The light guide member () has a widened portion () that is widened outward in a plate width direction from the light incidence surface () toward the light emission surface (), and in a cross-section parallel to the light emission surface () on the light emission surface () side of the light guide member (), the light guide member () has a larger plate thickness at least on one end side in the plate width direction on the side farther from the light incidence surface () than the plate thicknesses of the other portions.

Light guide plate and light emitting device using same

This air-conditioning unit includes a heat exchanger that exchanges heat between air and a coolant, a blower, and an air outflow part. The heat exchanger includes a plurality of tubes in which the coolant flows, an inlet header, an outlet header, and a fin. The inlet header includes: a low-temperature-side coolant inflow part into which coolant that has a relatively low temperature can flow; and a high-temperature-side coolant inflow part into which coolant that has a relatively high temperature can flow. The low-temperature-side coolant inflow part and the high-temperature-side coolant inflow part are offset from each other in the direction of the flow of air that passes through the heat exchanger and in an intersecting direction that intersects the direction of the flow of air.

Air-conditioning unit, heat exchanger, and air conditioner

This air conditioning device for a vehicle has: an indoor condenser; an indoor evaporator; a first expansion valve; a second expansion valve; a refrigerant line; an expansion valve control detector; and a controller. The expansion valve control detector is constituted by: only one temperature sensor that detects the temperature of refrigerant in an inter-expansion valve line of the refrigerant line; and only one pressure sensor that detects the pressure of the refrigerant in the inter-expansion valve line. During a cooling operation, the controller issues, to the first expansion valve, an opening command corresponding to a state quantity of the refrigerant that has been detected by the expansion valve control detector, and during a heating operation, the controller issues, to the second expansion valve, an opening command corresponding to a state quantity of the refrigerant that has been detected by the expansion valve control detector.

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Tokyo, Japan

Yasuo Katayama