Heat Exchanger

a heat exchanger and heat exchange technology, applied in the field of heat exchangers, can solve the problems of deteriorating heat exchange efficiency and frost formation, and achieve the effects of enhancing the bending rigidity of the whole heat exchanger, facilitating heat exchange between air and coolant, and enhancing the heat exchange efficiency of the heat exchanger

Inactive Publication Date: 2014-08-14
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a heat exchanger with improved bending rigidity, enhanced heat exchange efficiency, and facilitated heat exchange between air and coolant. The heat exchanger is designed with firmly connected heat exchanger units, blocked air escape routes, and bolt insertion holes that absorb errors in dimension and assembly. The use of identical side plates and symmetrical arrangement allows for easy production and control of the heat exchanger components, leading to enhanced productivity.

Problems solved by technology

However, in this lateral-coolant-flow type heat exchanger, there may often occur frost formation due to condensed water adhering to the surfaces of laterally disposed tubes, when the coolant is evaporated.
If a layer of the frost grows up, there may be caused a deterioration of heat exchange efficiency.

Method used

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Examples

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Embodiment Construction

[0034]In the following, it will be explained about the embodiments of the present invention referring to the associated figures.

[0035]FIG. 1 is a front view of the heat exchanger 1 of an embodiment according to the present invention. The heat exchanger 1 is of a vertical-coolant-flow type, and is configured with two heat exchanger units 2 being arranged in parallel in the lateral direction.

[0036]The heat exchanger unit 2 comprises upper- and lower header pipes 4, 6 disposed in parallel to each other extending in lateral direction, a plurality of tubes communicating with both header pipes 4,6 and being disposed parallel to each other with a small distance in between the header pipes 4,6, and fins 10 disposed between adjacent tubes 8. These tubes 8 and fines 10 that are layered constitute a core portion of the heat exchanger. The plurality of tubes 8 are connected by blazing at the connecting holes that are provided in regular intervals on the header pipes 4,6.

[0037]FIG. 2 shows an en...

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PUM

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Abstract

A heat exchanger includes a plurality of heat exchanger units, each of which including header pipes (4,6) disposed in parallel to each other, a plurality of tubes (8) communicating with the header pipes and being disposed between the header pipes, fins (10) disposed between adjacent tubes, wherein a core portion (12) of the heat exchanger unit (2) is configured with the tubes and the fins layered therebetween; wherein the plurality of heat exchanger units are disposed in a direction that the tubes and the fins are arranged; and wherein the heat exchanger includes: fitting portions (16,18) which connect respective end portions (4a, 6a) of the header pipes of the heat exchanger units that are adjacent to each other, and side plates (20,22,40,42,46,48) which connect opposing end portions (12a) of respective core portions of the heat exchanger units that are adjacent to each other.

Description

TECHNICAL FIELD[0001]The present invention is concerning a heat exchanger used as an exterior heat exchanger having both functions of condenser and evaporator for a heat pump system of a vehicle air conditioning.BACKGROUND ART [0002]Conventionally, the above referred heat exchanger comprises, for example, a pair of header pipes disposed with a space and in parallel to each other, a plurality of tubes communicating with both header pipes and being disposed parallel to each other with a small distance, and fins disposed between adjacent tubes. These tubes and fines that are layered constitute a core portion of the heat exchanger. In such a heat exchanger, a pair of header pipes are disposed to extend vertically, and a plurality of tubes are disposed to extend laterally, which is called as a lateral-coolant-flow type heat exchanger. In this type of heat exchanger, it is designed so that the length (vertical dimension) of the header pipes is larger than the length of tubes (lateral dime...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F28F1/12
CPCF28F9/002F28F9/0243F28F9/262F28D1/05366F28D2021/0084F28D2021/0085F28F1/12F28F2275/20
Inventor MATSUMOTO, YUUICHIIINO, YUSUKE
Owner SANDEN CORP
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