A vehicle air-conditioner provided with an inside air-conditioning unit introducing at least one of inside air and outside air, adjusting the state of the introduced air, and blowing it out into the vehicle compartment, where an air-conditioning electronic control device judges if window glass is liable to fog up based on a window glass surface relative humidity near the window glass in the compartment (degree of ease of fogging). When it is judged that the window glass is liable to fog up, the inside air-conditioning unit is controlled to prevent the window glass from fogging up in defrost control, while when it is judged that the window glass is resistant to fogging, the inside air-conditioning unit is controlled to introduce at least inside air into the compartment.

Vehicular air-conditioner

An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes and at least one cool storage material container. The at least one cool storage material container includes a container main body and a plurality of convex portions. The container main body has a first wall and a second wall opposite to the first wall which are substantially parallel to a plane including a longitudinal direction and a width direction. The first wall and the second wall are connected to adjacent refrigerant flow tubes among the plurality of refrigerant flow tubes, respectively. The plurality of convex portions are provided on the first wall and the second wall to protrude outwardly from the first wall and the second wall. Two adjacent convex portions among the plurality of convex portions form each of condensed water drain passages therebetween.

Evaporator with cool storage function

An outer surface of a cold-storage container (or a refrigerant tube) is provided with a plurality of protrusion portions or recess portions. A cooling air passage, in which air flows to cool a space to be cooled in a cold storage time and in a cold release time of the cold storage material, is provided to contact a surface of the refrigerant tube on a side opposite to the cold storage container bonded to the refrigerant tube. The refrigerant tubes and the cold storage container form therebetween a cold-storage side air passage by the protrusion portions or the recess portions, such that air flows in the cold-storage side air passage separated from the cooling air passage. For example, the cold-storage side air passage is provided with a slanting space that causes condensed water or ice generated in the cold storage time to be drained along the cold-storage side air passage.

Cold storage heat exchanger

Ein Verdampfer umfasst einen Kaltespeichermaterialbehalter. Der Kaltespeichermaterialbehalter enthalt ein Kaltespeichermaterial und ist in einem zweiten Teil der Raume angeordnet. Der Kaltespeichermaterialbehalter weist einen Behalterhauptkorperabschnitt auf, der an die Kuhlmitteldurchflussrohre gefugt ist. Der nach ausen vorstehende Abschnitt erstreckt sich von einem oberen Ende des leewartigen Rands oder windwartigen Rands des Behalterhauptkorperabschnitts. Der nach ausen vorstehende Abschnitt weist einen Ausdehnungsabschnitt auf, der von dem Behalterhauptkorperabschnitt vorsteht, und wobei eine vorstehende Dicke des Ausdehnungsabschnitts groser als eine Dicke des Behalterhauptkorperabschnitts ist. Der Ausdehnungsabschnitt befindet sich auserhalb der Lamellen. Zumindest eine von linken und rechten Seitenwanden des Ausdehnungsabschnitts ist so aufgebaut, um sich zu verformen, wenn ein Innendruck in dem Kaltespeichermaterialbehalter uber einen vorbestimmten Druck hinaus ansteigt.

Evaporator with cold storage function

A vehicle air conditioning system includes an electric powered refrigerant compressing device, an evaporator, an electric heater, an air temperature determining component, a cabin interior temperature controlling component, an upper limit electric power setting component, and an electric power distribution controller. The evaporator receives refrigerant from the compressing device. The heater is downstream of the evaporator in an air passageway. The determining component determines a first air temperature upstream of the evaporator and a second air temperature between the evaporator and the heater. The controlling component sets a vehicle interior discharge air temperature at a position downstream of the heater to a target temperature. The power setting component sets an upper limit for power supplied to the compressing device and the heater. The power distribution controller distributes the upper limit electric power to the compressing device and the heater based on a ratio of upstream and downstream temperature differences.

Vehicle air conditioning system

PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle which maintains comfortableness in a vehicle room irrespective of season by controlling blowing air amount into the vehicle room to the optimum amount even when cooling and heating capacity of the air conditioner for the vehicle is reduced. SOLUTION: This air conditioner for the vehicle is provided with: an air amount setting means for setting amount of blowing air into the vehicle room in accordance with a vehicle room condition; and a fan motor for feeding air blown into the vehicle room into a heat exchanger in accordance with air amount set by the air amount setting means. It is also provided with: a heat exchange capacity detection means for detecting the reduction of heat exchange capacity of the heat exchanger based on a running condition of the vehicle; and an air amount reducing means for reducing air amount of the fan motor set by the air amount setting means by predetermined amount when the heat exchange capacity detection means detects the reduction of heat exchange capacity of the heat exchanger. COPYRIGHT: (C)2004,JPO

Masatani Tadanari

Papers

Air conditioner for vehicle