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Evaporator with cool storage function

Inactive Publication Date: 2010-09-09
KEIHIN THERMAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]An object of the present invention is to solve the above problems and to provide an evaporator with a cool storage function of reduced size and weight which can suppress an increase in air passage resistance.

Problems solved by technology

Incidentally, an ordinary car air conditioner has a problem in that, when an engine of an automobile in which the air conditioner is mounted is stopped, a compressor driven by the engine is stopped, and supply of refrigerant to an evaporator stops, whereby the cooling capacity of the air conditioner sharply drops.
However, when the lengths of the cool storage material containers and the refrigerant flow tubes are increased, the size of the heat exchange core section of the evaporator increases, with a resultant increase in weight and deterioration in space saving performance.

Method used

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Examples

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Embodiment Construction

[0037]Embodiments of the present invention will next be described with reference to the drawings.

[0038]In the following description, the downstream side (a direction represented by arrow X in FIGS. 1 to 4) with respect to an air flow direction will be referred to as the “front,” and the opposite side as the “rear.” Further, the upper, lower, left-hand, and right-hand sides as viewed rearward from the front side; i.e., the upper, lower, left-hand, and right-hand sides of FIG. 1, will be referred to as “upper,”“lower,”“left, and “right,” respectively.

[0039]In the following description, the term “aluminum” encompasses aluminum alloys in addition to pure aluminum.

[0040]FIG. 1 shows the overall configuration of an evaporator with a cool storage function according to the present invention, and FIGS. 2 to 6 show the configurations of essential portions of the evaporator.

[0041]As shown in FIGS. 1 and 2, an evaporator with a cool storage function 1 includes a first header tank 2 and a second...

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PUM

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Abstract

An evaporator with a cool storage function includes flat refrigerant flow tubes and flat cool storage material containers each brazed to one side surface of the corresponding refrigerant flow tube. A plurality of sets each composed of refrigerant flow tubes and a cool storage material container are disposed such that they are spaced from one another. A fin is disposed in an air-passing clearance between adjacent sets, and is joined to the corresponding refrigerant flow tubes and the corresponding cool storage material container. Front portions of the cool storage material containers and the fins project frontward from the refrigerant flow tubes, and an internal-volume-increasing portion, whose container height is greater than that of the container body portion, is provided at the frontward projecting portion of each cool storage material container. Fins are brazed to opposite side surfaces of the internal-volume-increasing portion of each cool storage material container.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to an evaporator with a cool storage function for use in a car air conditioner for a vehicle in which an engine serving as a drive source for a compressor is temporarily stopped when the vehicle is stopped.[0002]In recent years, in order to protect the environment and improve fuel consumption of automobiles, there has been proposed an automobile designed to automatically stop the engine when the automobile stops, for example, so as to wait for a traffic light to change.[0003]Incidentally, an ordinary car air conditioner has a problem in that, when an engine of an automobile in which the air conditioner is mounted is stopped, a compressor driven by the engine is stopped, and supply of refrigerant to an evaporator stops, whereby the cooling capacity of the air conditioner sharply drops.[0004]As one measure to solve such a problem, imparting a cool storage function to the evaporator has been considered, to thereby enable co...

Claims

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Application Information

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IPC IPC(8): F25B39/02
CPCF25B39/022F25B2400/24F28D1/05391Y02E60/142F28D2020/0008F28D2020/0013F28D20/00Y02E60/14
Inventor HIGASHIYAMA, NAOHISASASAKI, HIRONAKA
Owner KEIHIN THERMAL TECH CORP
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