HEAT EXCHANGER, AND REFRIGERANT CYCLE DEVICE

• Main Authors: TERAI KO, TABATA SHINYA, EMURA CHIE, SATO TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 31.01.2024
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

To solve a problem that, in a heat exchanger having a heat transmission member in which a plurality of heat-exchanging flow passages for causing fluid to exchange heat, and a branch flow passage for distributing the fluid to heat-exchanging passages are formed, the performance and heat transmission efficiency of the heat exchanger are liable to be deteriorated.SOLUTION: In a heat exchanger 100, a refrigerant flows between an upper-side second flow hole 120b and a lower-side second flow hole 120b in a longitudinal direction DL. The heat exchanger 100 comprises a first heat transmission plate 110 and a second heat transmission plate 120 which are arranged while adjoining each other along the longitudinal direction DL, and form N-pieces of flow passage regions F1 to F5. Numbers and cross sections of flow passages in the first flow passage region F1 are different from those of flow passages of the N-th flow passage region F5. The first flow passage region F1 is located in a first position from a side of the upper-side second flow hole 120b in the longitudinal direction DL in the N-th flow passage region. The N-th flow passage region F5 is located in an N-th position from a side of the upper-side second flow hole 120b in the longitudinal direction DL in the N-th flow passage region.SELECTED DRAWING: Figure 6 【課題】流体に熱交換をさせるための複数の熱交換流路と、流体を各熱交換通路に分配するための分岐流路とが形成される伝熱部材を備える熱交換器では、熱交換器の性能が低下したり、熱伝達効率が低下したりすることがある。【解決手段】熱交換器１００では、上側の第２流通孔１２０ｂと下側の第２流通孔１２０ｂとの間を長手方向ＤＬに冷媒が流れる。熱交換器１００は、長手方向ＤＬに沿って隣り合って配置されるＮ個の流路領域Ｆ１～Ｆ５を形成する第１伝熱プレート１１０及び第２伝熱プレート１２０を備える。第１の流路領域Ｆ１の流路の数および断面積は、第Ｎの流路領域Ｆ５の流路の数および断面積と異なる。第１の流路領域Ｆ１は、Ｎ個の流路領域のうち長手方向ＤＬにおいて上側の第２流通孔１２０ｂの側から１番目に位置する。第Ｎの流路領域Ｆ５は、Ｎ個の流路領域のうち長手方向ＤＬにおいて上側の第２流通孔１２０ｂの側からＮ番目に位置する。【選択図】図６