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Evaporator with cool storage function

a technology of evaporator and function, which is applied in the direction of indirect heat exchangers, refrigeration components, lighting and heating apparatus, etc., can solve the problems of sharp drop in the cooling capacity of the air conditioner, deterioration of cooling performance, and decrease in the number of refrigerant flow tubes, so as to reduce the internal volume, the internal volume of the cool storage material container is reduced, and the internal pressure is increased

Inactive Publication Date: 2012-02-23
KEIHIN THERMAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]An object of the present invention is to solve the above problems and to provide an evaporator with a cool storage function which can restrain an increase in air-passing resistance, as compared with the evaporator with a cool storage function disclosed in the publication, while restraining deterioration of cooling performance.

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, the evaporator with a cool storage function disclosed in the publication has a problem in that, as compared with an ordinary evaporator which has the same effective core area and which does not has a cool storage material container, the number of refrigerant flow tubes decreases, whereby cooling performance deteriorates.
However, the evaporator with a cool storage function disclosed in the publication has the following problem.

Method used

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  • Evaporator with cool storage function
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Embodiment Construction

[0064]An embodiment of the present invention will next be described with reference to the drawings. Notably, the same reference numerals are used throughout the drawings to refer to the same portions and members, and their repeated descriptions are omitted.

[0065]In the following description, the downstream side with respect to an air-passing direction (a direction represented by arrow X in FIGS. 1 and 2) will be referred to as the “front,” and the opposite side as the “rear.” Further, the left-hand and right-hand sides as viewed rearward from the front side; i.e., the left-hand and right-hand sides of FIG. 1, will be referred to as “left” and “right,” respectively.

[0066]Furthermore, the term “aluminum” as used in the following description encompasses aluminum alloys in addition to pure aluminum.

[0067]FIG. 1 shows the overall configuration of an evaporator with a cool storage function according to the present invention, and FIGS. 2 and 3 show the configuration of an essential portion...

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Abstract

An evaporator with a cool storage function includes a cool storage material container disposed at least one of air-passing clearances formed between adjacent refrigerant flow tubes, and fins disposed in air-passing clearances on opposite sides of the cool storage material container. The cool storage material container includes a container body portion joined to the corresponding refrigerant flow tubes, and an outward extending portion which extends from the front edge of the container body portion and projects frontward in relation to the refrigerant flow tubes. Each of the fins has a fin body portion joined to the corresponding refrigerant flow tubes, and an outward extending portion which extends from the front edge of the fin body portion body and projects frontward in relation to the refrigerant flow tubes. The outward extending portions of the fins are brazed to opposite sides of the outward extending portion of the 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 the present specification and appended claims, the upper and lower sides of FIG. 1 will be referred to as “upper” and “lower,” respectively.[0003]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.[0004]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 shar...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B39/02
CPCF25B39/02F25B2400/24F28D1/05391Y02E60/145F28D2020/0013F28D2021/0085F28D20/02Y02E60/14
Inventor KAMOSHIDA, OSAMUHIGASHIYAMA, NAOHISAHIRAYAMA, TAKASHI
Owner KEIHIN THERMAL TECH CORP
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