Heat exchange device and refrigerant circulation system

Patent metadata

Field	Value
Publication number	US-12104805-B2
Application number	US-202217718179-A
Country	US
Kind code	B2
Filing date	Apr 11, 2022
Priority date	Dec 6, 2019
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

A heat exchange device and a refrigerant circulation system are disclosed. The heat exchange device includes a housing, defining a first air inlet and a first air outlet; wherein the first air inlet and the first air outlet are spaced apart along a first direction; and a first heat exchange component, arranged in the housing and comprising a plurality of heat exchange fins spaced apart along a second direction; wherein the first heat exchange component is arranged opposite to the first air inlet along a third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction.

First claim

What is claimed is:

1. An air-conditioning indoor unit, comprising:
a housing, comprising a front panel and a rear panel oppositely arranged along a first direction, and comprising an upper side panel and a lower side panel oppositely arranged along a second direction; wherein the first direction is perpendicular to the second direction; the housing defines an accommodating cavity; the front panel is arranged with a first air inlet region, the upper side panel is arranged with a second air inlet region, and the lower side panel is arranged with a first air outlet region;
a first heat exchanger, arranged in the accommodating cavity; wherein a projection of the first air inlet region along the first direction at least partly falls on the first heat exchanger; the first heat exchanger and the rear panel are spaced apart along the first direction, and a space between the first heat exchanger and the rear panel defines a settlement enhancement region; and
a second heat exchanger, arranged in the accommodating cavity; wherein a projection of the second air inlet region along the second direction at least partly falls on the second heat exchanger; the projection of the second heat exchanger along the second direction at least partially falls into the settlement enhancement region, wherein a ratio between a thickness of the first heat exchanger along the first direction and a distance between the front panel and the rear panel in the first direction is 0.06-0.5; a ratio between the thickness of the first heat exchanger along the first direction and a distance between the first heat exchanger and the rear panel in the first direction is 0.068-1.

2. The air-conditioning indoor unit according to claim 1 , wherein the second heat exchanger is arranged inclinedly, along a direction from the rear panel to the front panel, toward the lower side panel; the projection of the second heat exchanger along the second direction at least partially falls on the first heat exchanger.

3. The air-conditioning indoor unit according to claim 2 , wherein the first heat exchanger comprises a plurality of first heat exchange tubes arranged at intervals along a first reference plane; an included angle between the first reference plane and the second direction is greater than or equal to 0 degrees and less than or equal to 5 degrees.

4. The air-conditioning indoor unit according to claim 3 , wherein the second heat exchanger comprises a plurality of second heat exchange tubelines arranged at intervals along a second reference plane; an included angle between the first reference plane and the second reference plane is greater than 0 degrees and less than or equal to 30 degrees.

5. The air-conditioning indoor unit according to claim 3 , wherein a space defined by an orthographic projection of the first reference plane on the front panel along the first direction is smaller than a space defined by an orthographic projection of the first reference plane on the rear panel along the first direction.

6. The air-conditioning indoor unit according to claim 1 , wherein the housing further comprises a left side panel and a right side panel oppositely arranged along a third direction; the first direction, the second direction, and the third direction are perpendicular to each other; the first heat exchanger comprises a plurality of first heat exchange fins arranged at intervals along the third direction.

7. The air-conditioning indoor unit according to claim 6 , further comprising a water collection tank; wherein the water collection tank is arranged on a side of the first heat exchange fins toward the lower side panel; a beveled edge is arranged between a side edge of the first heat exchange fins toward the rear panel and a bottom edge of the first heat exchange fins toward the lower side panel; the beveled edge is inclined, along a direction from the upper side panel to the lower side panel, toward the front panel; a width of the bottom edge of the first heat exchange fins in the first direction is less than or equal to a width of an opening of the water collection tank in the first direction.

8. The air-conditioning indoor unit according to claim 6 , wherein a left second air outlet region is arranged on the left side panel and a right second air outlet is arrange on the right side panel; the air-conditioning indoor unit further comprises a first fan and a second fan arranged in the accommodating cavity; the first fan is arranged near the left side panel to blow a cooling airflow in the accommodating cavity to the left second air outlet region of the left side panel, and the second fan is arranged near the right side panel to blow the cooling airflow in the accommodating cavity to the right second air outlet region of the right side panel.

9. The air-conditioning indoor unit according to claim 6 , wherein a plurality of first heat exchange tubelines are integrated in the plurality of first heat exchange fins; the plurality of first heat exchange fins have a first thickness in a region on which the plurality of first heat exchange tubelines are disposed, and the plurality of first heat exchange fins have a second thickness in another region outside the plurality of first heat exchange tubelines; a ratio of the first thickness to the second thickness is greater than or equal to 1.1 and less than or equal to 2.5; a ratio of a distance between adjacent two of the plurality of first heat exchange fins to the second thickness is greater than or equal to 2 and less than or equal to 20.

10. The air-conditioning indoor unit according to claim 6 , wherein the second heat exchanger comprises a plurality of second heat exchange fins arranged at intervals along the third direction; a fin-width of the plurality of second heat exchange fins is greater than a fin-width of the plurality of first heat exchange fins.

11. The air-conditioning indoor unit according to claim 1 , further comprising a fresh air injection device arranged in the accommodating cavity and configured to inject outdoor fresh air into the accommodating cavity.

12. The air-conditioning indoor unit according to claim 11 , wherein the fresh air injection device is arranged on a side of the second heat exchanger away from the lower side panel, the injection direction of the fresh air injection device is directed to the rear panel, and an included angle between the fresh air injection device and the rear panel is greater than or equal to 2 degrees and less than or equal to 20 degrees; or the fresh air injection device is on a side of the second heat exchanger facing the lower side panel, and an injection direction of the fresh air injection device is directed to the lower side panel along the second direction.

Assignees

• Guangdong Midea White Home Appliance Tech Innovation Center Co Inc
• Midea Group Co Ltd
• Guangdong Midea White Home Appliance Tech Innovation Center Co Ltd

Inventors

• Lin Chen
• Jiang Chenzhong
• He Jiaji
• Omori Hiroshi
• Yue Bao

Classifications

• F24F1/0284

  with horizontally arranged fan axis · CPC title

• F24F1/0325

  by the shape of the heat exchangers or of parts thereof, e.g. of their fins · CPC title

• F28F1/32

  the means having portions engaging further tubular elements · CPC title

• F28F2265/22

  for draining · CPC title

• F28F2265/06

  by using means for draining heat exchange media from heat exchangers · CPC title