空调室内机及空调系统
By using the three-pipe structure of the ducted air conditioning system and the micro-perforated plate design of the auxiliary heat exchanger, the problems of temperature fluctuation and direct blowing are solved, and the comfort of using the indoor air conditioning unit in various modes is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ducted air conditioning systems suffer from temperature fluctuations during dehumidification operation, and tend to produce a direct draft when cooling or heating, affecting user comfort.
It adopts a three-pipe structure, including independent cooling, heating and dehumidification loops. Through the combined operation of the main heat exchanger and the auxiliary heat exchanger, temperature compensation is performed in dehumidification mode, and the micro-perforated plate function of the auxiliary heat exchanger is used to reduce the air outlet speed and disperse the airflow to prevent direct blowing.
It achieves stable indoor temperature during dehumidification, preventing temperature drop, and avoids direct airflow onto the human body in cooling and heating modes, thus improving user comfort.
Smart Images
Figure CN224516912U_ABST
Abstract
Claims
1. An air conditioner indoor unit characterized by comprising: include: The housing (1) includes a bottom wall and a side wall, the side wall being provided with a first air outlet (16), and the bottom wall being provided with a second air outlet (17) on the side near the first air outlet (16); The main heat exchanger (3) is located inside the casing (1); A secondary heat exchanger (4) is disposed within the housing (1) and located downstream of the main heat exchanger (3), the secondary heat exchanger (4) being close to at least one of the first air outlet (16) and the second air outlet (17); and The connecting pipe assembly includes: a gas pipe (10), a liquid pipe (20), and a switching pipe (30). The liquid pipe (20) includes a main pipe section (201) and a first branch pipe section (202) and a second branch pipe section (203) connected to the main pipe section (201). A first on / off valve (5) is provided on the first branch pipe section (202), and a second on / off valve (6) is provided on the second branch pipe section (203). The switching pipe (30) is configured to realize pressure switching. The heat exchange tubes of the main heat exchanger (3) are connected to the gas pipe (10) and the first branch pipe section (202) at both ends, respectively, and the heat exchange tubes of the auxiliary heat exchanger (4) are connected to the switching pipe (30) and the second branch pipe section (203) at both ends. 2.The indoor unit of the air conditioner according to claim 1, characterized by, The indoor unit of the air conditioner has a cooling mode, a heating mode, and a dehumidification mode, wherein... In the refrigeration mode, the first on / off valve (5) is turned on, the main heat exchanger (3) operates in refrigeration mode, and the second on / off valve (6) is turned off, and the auxiliary heat exchanger (4) does not operate. In the heating mode, the first on / off valve (5) is turned on, the main heat exchanger (3) operates in heating mode, and / or the second on / off valve (6) is turned on, the auxiliary heat exchanger (4) operates in heating mode; In the dehumidification mode, the first on / off valve (5) is turned on, the main heat exchanger (3) operates in cooling mode, and the second on / off valve (6) is turned on, the auxiliary heat exchanger (4) operates in heating mode. 3.The indoor unit of the air conditioner according to claim 1, characterized by, The indoor unit of the air conditioner has a dehumidification mode. In the dehumidification mode, the main heat exchanger (3) operates in cooling mode, and the auxiliary heat exchanger (4) operates in heating mode, with the heating capacity configured not to reduce the indoor temperature. 4.The indoor unit of the air conditioner according to claim 1, characterized by, The secondary heat exchanger (4) covers the second air outlet (17).
5. The air conditioning indoor unit according to any one of claims 1 to 4, characterized by Also includes: A first air guide plate (8), the first end of which is hinged to one edge of the first air outlet (16) along the height direction, the first air guide plate (8) being configured to cover the first air outlet (16) in a closed state and to rotate into the housing (1) in an open state; and / or The second air guide plate (9) is hinged to the middle position of the second air outlet (17) and can rotate in both directions. 6.The indoor unit of the air conditioner according to claim 5, characterized in that, The auxiliary heat exchanger (4) covers the second air outlet (17), and the first end of the first air guide plate (8) is hinged to the bottom edge of the first air outlet (16) and is higher than the top surface of the auxiliary heat exchanger (4). When the first air guide plate (8) rotates to form an angle with the top surface of the auxiliary heat exchanger (4) and the second air guide plate (9) is open, the first air outlet (16) and the second air outlet (17) both emit air simultaneously; when the first air guide plate (8) rotates to completely cover the auxiliary heat exchanger (4), the first air outlet (16) emits air alone. 7.The indoor unit of the air conditioner according to claim 5, characterized in that, Also includes: A water receiving tray (7) is provided inside the housing (1) and located at the bottom of the main heat exchanger (3); When the first air guide plate (8) rotates to fully cover the auxiliary heat exchanger (4), the second end of the first air guide plate (8) abuts against the edge of the water receiving tray (7) near the second air outlet (17), and the first end of the first air guide plate (8) is not lower than the second end. 8.The indoor unit of the air conditioner according to claim 7, characterized by, The auxiliary heat exchanger (4) covers the second air outlet (17). The bottom wall is provided with a partition (141) between the water receiving tray (7) and the auxiliary heat exchanger (4). When the first air guide plate (8) is rotated to the lower limit position, it overlaps the top of the partition (141) so as to abut against the edge of the water receiving tray (7) near the second air outlet (17). 9.The indoor unit of the air conditioner of claim 8, characterized in that, The housing (1) includes a first sub-shell (14) and a second sub-shell (15) arranged side by side along a first direction (x), wherein the first sub-shell (14) has a frame on one side along the first direction (x), and the second sub-shell (15) is mounted on the frame. The main heat exchanger (3) and the water receiving tray (7) are located in the first sub-shell (14), the auxiliary heat exchanger (4) is located in the second sub-shell (15), and the first air outlet (16) and the second air outlet (17) are located in the second sub-shell (15). 10.The indoor unit of the air conditioner according to claim 5, characterized in that, The indoor unit of the air conditioner has three air outlet states in either cooling or heating mode, including: The first air guide plate (8) rotates to a preset angle with the top surface of the auxiliary heat exchanger (4), and the second air guide plate (9) opens; The first air guide plate (8) is at its maximum opening angle, and the second air guide plate (9) is closed; and The first air guide plate (8) is closed, and the second air guide plate (9) is open; The auxiliary heat exchanger (4) covers the second air outlet (17). When the indoor unit of the air conditioner is in dehumidification mode, the first air guide plate (8) is closed and the second air guide plate (9) is open.
11. The air conditioning indoor unit according to any one of claims 1 to 4, characterized by The surface of the auxiliary heat exchanger (4) has a hydrophilic coating.
12. The air conditioning indoor unit according to any one of claims 1 to 4, characterized by Also includes: A fan (2) is disposed along a first direction (x) on the side of the main heat exchanger (3) away from the first air outlet (16). The fan (2) is located outside the housing (1). The fan (2) has an air outlet (22) that extends into the housing (1). 13.The indoor unit of the air conditioner of claim 12, characterized in that, The air outlet (22) is located in the upper region of the housing (1), the main heat exchanger (3) is plate-shaped, and the main heat exchanger (3) is inclined from the top to the bottom towards the direction close to the first air outlet (16).
14. An air conditioning system, characterised in that, Includes the air conditioning indoor unit as described in any one of claims 1 to 13.