JPWO2021234957A5

JPWO2021234957A5 -

Info

Publication number: JPWO2021234957A5
Application number: JP2022524845A
Authority: JP
Filing date: 2020-05-22
Publication date: 2022-08-10
Anticipated expiration: 2040-05-22

Description

本開示に係る熱交換器は、上下方向に流れる冷媒流路が形成され、互いに間隔をあけて並列に配置された複数の扁平管と、隣り合う前記扁平管の間に設けられた複数のフィンと、複数の前記扁平管のそれぞれの上端部が接続された上部ヘッダと、複数の前記扁平管のそれぞれの上端部が接続された下部ヘッダと、を備え、各前記フィンの下端部が前記下部ヘッダと接合されておらず、各前記フィンの下端部と前記下部ヘッダとの間に下部隙間が設けられており、各前記フィンの上端部が前記上部ヘッダと接合されておらず、各前記フィンの上端部と前記上部ヘッダとの間に上部隙間が設けられており、前記上部隙間の上下の幅寸は、前記下部隙間の上下の幅寸の３分の１以下である。 A heat exchanger according to the present disclosure includes a plurality of flat tubes arranged in parallel at intervals, and a plurality of fins provided between the adjacent flat tubes, in which a refrigerant flow path is formed to flow in the vertical direction. an upper header to which the upper ends of the plurality of flat tubes are connected; and a lower header to which the upper ends of the plurality of flat tubes are connected, wherein the lower ends of the fins are connected to the lower not joined with a header, a lower gap is provided between a lower end of each said fin and said lower header, an upper end of each said fin is not joined with said upper header, and each said fin An upper gap is provided between the upper end of the and the upper header, and the vertical width of the upper gap is one-third or less of the vertical width of the lower gap .

本開示に係る空気調和機は、上記熱交換器を有する室外機を備えているものである。 An air conditioner according to the present disclosure includes an outdoor unit having the above heat exchanger.

Claims

a plurality of flat tubes arranged in parallel and spaced apart from each other, each having a vertically flowing coolant channel formed thereon;
a plurality of fins provided between the adjacent flat tubes;
an upper header to which upper ends of the plurality of flat tubes are connected;
a lower header to which upper ends of the plurality of flat tubes are connected;
a lower end of each fin is not joined to the lower header, and a lower gap is provided between a lower end of each fin and the lower header ;
an upper end of each of the fins is not joined to the upper header, and an upper gap is provided between the upper end of each of the fins and the upper header;
The heat exchanger , wherein the vertical width of the upper gap is one-third or less of the vertical width of the lower gap .

The fins are formed by bending in the vertical direction in a wavy shape, and have a portion with a small wavy pitch and a portion with a large wavy pitch,
2. The heat exchanger according to claim 1, wherein the portion of the corrugation with a smaller pitch is arranged above the portion of the corrugation with a larger pitch.

An air conditioner comprising an outdoor unit having the heat exchanger according to claim 1 or 2 .

The outdoor unit is
a housing having an air outlet formed on the top surface;
4. The air conditioner according to claim 3, further comprising a blower disposed directly below said air outlet.

a heat exchanger;
a housing having an air outlet formed on the top surface;
and an outdoor unit having a blower arranged directly below the air outlet,
The heat exchanger is
a plurality of flat tubes arranged in parallel and spaced apart from each other, each having a vertically flowing coolant channel formed thereon;
a plurality of fins provided between the adjacent flat tubes;
an upper header to which upper ends of the plurality of flat tubes are connected;
a lower header to which upper ends of the plurality of flat tubes are connected;
a lower end of each fin is not joined to the lower header, and a lower gap is provided between a lower end of each fin and the lower header;
an upper end of each of the fins is not joined to the upper header, and an upper gap is provided between the upper end of each of the fins and the upper header;
The air conditioner, wherein the vertical width of the upper gap is smaller than the vertical width of the lower gap.