JP2019128142A5

JP2019128142A5 -

Info

Publication number: JP2019128142A5
Application number: JP2018160828A
Authority: JP
Filing date: 2018-08-29
Publication date: 2020-05-07
Anticipated expiration: 2038-08-29

Description

本開示に係る熱交換器は、熱媒体と空気との間で熱交換を行う熱交換器（１０）であって、内部を熱媒体が流れる管状のチューブ（１００）と、金属板を折り曲げることによって形成された部材であって、チューブの表面にろう接されているフィン（２００）と、を備える。フィンにはルーバー（２１０）が形成されている。チューブの表面（１０１）には、ろう接時において融解したろう材を、チューブとフィンとの接合部から他の部分に向けて誘導するための誘導溝（１３１，１３２，１３３）が形成されている。チューブの表面には、チューブの内側に向けて後退する凹部（１２０）が形成されており、少なくとも一部の誘導溝が凹部に繋がっている。 A heat exchanger according to the present disclosure is a heat exchanger (10) for exchanging heat between a heat medium and air, wherein a tubular tube (100) through which the heat medium flows and a metal plate are bent. And a fin (200) brazed to the surface of the tube. A louver (210) is formed on the fin. A guide groove (131, 132, 133) is formed on the surface (101) of the tube for guiding the molten brazing material at the time of brazing from the joint between the tube and the fin toward the other portion. There is. The surface of the tube is formed with a recess (120) that recedes toward the inside of the tube, and at least a part of the guide groove is connected to the recess.

Claims

A heat exchanger (10) for exchanging heat between a heat medium and air, comprising:
A tubular tube (100) in which a heat medium flows,
A member formed by bending a metal plate, comprising a fin (200) brazed to the surface of the tube,
A louver (210) is formed on the fin,
On the surface (101) of the tube,
Guide grooves (131, 132, 133) for guiding the molten brazing material at the time of brazing to other portions from the joint between the tube and the fin are formed ,
The surface of the tube is formed with a recess (120) that recedes toward the inside of the tube,
A heat exchanger in which at least a part of the guide groove is connected to the recess .

The tube has a rib (110) formed by bending a part of a member that defines a flow path of the heat medium inward,
The heat exchanger according to claim 1 , wherein the recess is formed in a root portion of the rib.

Further comprising a tank (11, 13) to which the ends of the tubes are joined,
The guide groove, the are connected to the joint portion between the tube and the tank, the heat exchanger according to claim 1 or 2.

A heat exchanger (10) for exchanging heat between a heat medium and air, comprising:
A tubular tube (100) in which a heat medium flows,
A member formed by bending a metal plate, comprising a fin (200) brazed to the surface of the tube,
A louver (210) is formed on the fin,
On the surface (101) of the tube,
Guide grooves (131, 132, 133) for guiding the molten brazing material at the time of brazing to other portions from the joint between the tube and the fin are formed,
Further comprising a tank (11, 13) to which the ends of the tubes are joined,
The guide groove may have heat exchangers leading to the junction portion between the tank and the tube.

In at least some of said guide groove, compared its longitudinal direction is shaped in a cross-section perpendicular has a rectangular, heat exchanger according to any one of claims 1 to 4.

The heat exchanger according to any one of claims 1 to 4 , wherein at least a part of the guide groove has an arc shape in a cross section perpendicular to a longitudinal direction thereof.

In at least some of said guide groove, compared its longitudinal direction is shaped in a cross-section perpendicular has a V-shape, the heat exchanger according to any one of claims 1 to 4.

The heat exchanger according to any one of claims 1 to 7 , wherein a depth of the guide groove is smaller than a thickness of a metal plate forming the tube.

The tube is made of a clad material having a brazing material layer (BD1) formed on its surface in advance.
The heat exchanger according to claim 8 , wherein the depth of the guide groove is larger than the thickness of the brazing material layer.