Multi-fan floor standing air conditioner indoor unit and air conditioner

Abstract

The application relates to the air conditioning technical field, and discloses a multi-fan floor type air conditioner indoor unit which comprises a shell, a first air outlet, a second air outlet and a third air outlet arranged in the shell from top to bottom; and a fan assembly arranged in the shell, wherein the fan assembly comprises a first fan, a second fan and a third fan arranged in the shell from top to bottom, the first fan is communicated with the first air outlet, the second fan is communicated with the second air outlet, and the third fan is communicated with the third air outlet, wherein a damper assembly is arranged between the air outlet of the third fan and the second air outlet, the air outlet of the third fan is communicated with the third air outlet when the damper assembly is closed, and the air outlet of the third fan is communicated with the second air outlet when the damper assembly is opened. The multi-fan floor type air conditioner indoor unit disclosed by the application improves the diversity of air supply and meets the needs of users for different air supply heights. The application further discloses an air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, such as to a multi-fan floor-standing air conditioner indoor unit and an air conditioner. Background Technology

[0002] Air conditioners are common appliances used to improve the indoor environment for users. Their temperature regulation capabilities and air delivery methods are all related to the user's experience when using air conditioners.

[0003] Taking a floor-standing air conditioner as an example, currently, floor-standing air conditioners have a front air outlet on their casing that directs airflow forward, and a fan is installed inside the casing to deliver air. Whether the air conditioner is operating in heating, cooling, or dehumidification mode, the airflow method of a floor-standing air conditioner is always forward-directing.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The existing air conditioners have a relatively simple air outlet method, which affects the user experience.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a multi-fan floor-standing air conditioner indoor unit and an air conditioner to solve the problem of air conditioners having a single air outlet mode, which affects the user experience.

[0009] In some embodiments, a multi-fan floor-standing air conditioner indoor unit includes: a housing having a first air outlet, a second air outlet, and a third air outlet arranged sequentially from top to bottom; and a fan assembly disposed within the housing, the fan assembly including a first fan, a second fan, and a third fan arranged sequentially from top to bottom, wherein the first fan is connected to the first air outlet, the second fan is connected to the second air outlet, and the third fan is connected to the third air outlet, wherein a damper assembly is provided between the exhaust port of the third fan and the second air outlet, wherein when the damper assembly is closed, the exhaust port of the third fan is connected to the third air outlet; and when the damper assembly is open, the exhaust port of the third fan is connected to the second air outlet.

[0010] In some optional embodiments, a first air duct partition and a second air duct partition are provided at both ends of the second fan. The first air duct partition is provided between the first fan and the second fan, and the second air duct partition is provided between the second fan and the third fan. The second air duct partition has a first air duct vent. The damper assembly includes a first damper, which is provided at the first air duct vent of the second air duct partition.

[0011] In some alternative embodiments, the damper assembly further includes a second damper, wherein the second damper is disposed at the exhaust port of the third fan.

[0012] In some alternative embodiments, a connecting ventilation duct is provided between the exhaust port of the third fan and the partition of the second duct, wherein the third exhaust port is located on the side of the connecting ventilation duct.

[0013] In some alternative embodiments, when the second damper is in the open state, the height of the second damper is H1, and the height of the connecting ventilation duct is H2, wherein H2≥H1.

[0014] In some alternative embodiments, the housing includes a first side shell plate portion and a second side shell plate portion located on both sides of the ventilation duct, wherein a third air outlet is opened in the first side shell plate portion and a second air damper is disposed near the second side shell plate portion.

[0015] In some optional embodiments, the first air outlet includes an air guide ring, a flow guide section disposed at a first end of the air guide ring, and a flow delivery section disposed at a second end of the air guide ring. The width of the air duct of the first air outlet from the flow guide section to the flow delivery section is Q, the flow guide width of the flow guide section is Q1, and 0.2Q≤Q1≤0.7Q.

[0016] In some alternative embodiments, the air supply width of the air supply section is Q2, where Q1 ≥ Q2.

[0017] In some optional embodiments, the air guide ring includes a first air guide ring near the air intake section, a second air guide ring near the air supply section, and a middle air guide ring located between the first and second air guide rings. The middle air guide ring includes a middle air guide front end and a middle air guide end end along the air guiding direction of the air guide ring. The angle between the outer tangent of the middle air guide front end and the horizontal line is W1, and the angle between the outer tangent of the middle air guide end and the horizontal line is W2. Furthermore, W1 ≥ W2; and / or, 30° ≤ W1 ≤ 65°; and / or, 10° ≤ W2 ≤ 45°.

[0018] In some optional embodiments, a third air duct partition is provided between the exhaust port and the first air outlet of the first fan. The third air duct partition has a second air duct vent that communicates with the first air outlet. The third air duct partition includes a partition area and an air duct opening area with the second air duct vent. Along the air guiding direction of the air guide ring, the first air guide ring includes a first air guide front end and a first air guide end end, and the vertical line passing through the first air guide end falls into the partition area.

[0019] In some embodiments, the air conditioner includes a multi-fan floor-standing air conditioner indoor unit as described above.

[0020] The multi-fan floor-standing air conditioner indoor unit and air conditioner provided in this disclosure can achieve the following technical effects:

[0021] The multi-fan floor-standing air conditioner indoor unit includes a casing and a fan assembly. The casing has a first air outlet, a second air outlet, and a third air outlet arranged sequentially from top to bottom. The fan assembly is housed within the casing and includes a first fan, a second fan, and a third fan arranged sequentially from top to bottom. The first fan is connected to the first air outlet, the second fan is connected to the second air outlet, and the third fan is connected to the third air outlet. A damper assembly is installed between the exhaust outlet of the third fan and the second air outlet. When the damper assembly is closed, the exhaust outlet of the third fan is connected to the third air outlet; when the damper assembly is open, the exhaust outlet of the third fan is connected to the second air outlet.

[0022] As can be seen, the casing of the multi-fan floor-standing air conditioner indoor unit provided in this embodiment has a first air outlet, a second air outlet, and a third air outlet, which are arranged sequentially from top to bottom. Air is supplied to these three air outlets by the first fan, the second fan, and the third fan, respectively. Users can selectively open air outlets at different heights to meet their air supply needs.

[0023] Furthermore, a damper assembly is installed between the exhaust port of the third fan and the second exhaust port, and the damper assembly can be opened or closed in a controlled manner. When the damper assembly is open, the exhaust port of the third fan is connected to the second exhaust port, and the air from the third fan can be delivered through the second exhaust port, increasing the air delivery intensity of the second exhaust port. When the damper assembly is closed, the air from the third fan is delivered through the third exhaust port.

[0024] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0026] Figure 1 This is a schematic diagram of the structure of a multi-fan floor-standing air conditioner indoor unit provided in an embodiment of this disclosure;

[0027] Figure 2 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0028] Figure 3 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0029] Figure 4 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0030] Figure 5 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0031] Figure 6 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0032] Figure 7 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0033] Figure 8 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0034] Figure 9 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0035] Figure 10 This is a schematic diagram of another multi-fan floor-standing air conditioner indoor unit provided in this embodiment of the disclosure;

[0036] Figure 11 This is a cross-sectional view of a first air outlet provided in an embodiment of this disclosure;

[0037] Figure 12 This is a schematic diagram of the structure of a first air outlet provided in an embodiment of this disclosure;

[0038] Figure 13 This is a schematic diagram of another first air outlet provided in an embodiment of this disclosure;

[0039] Figure 14 This is a cross-sectional view of another first air outlet provided in an embodiment of this disclosure;

[0040] Figure 15This is a cross-sectional view of another first air outlet provided in an embodiment of this disclosure;

[0041] Figure 16 This is a vector diagram of the air supply at the first air outlet of an indoor air conditioning unit provided in this embodiment of the present disclosure;

[0042] Figure 17 This is a vector diagram of the air supply system in proportion.

[0043] Figure label:

[0044] 1: Shell; 101: First air outlet; 102: Second air outlet; 103: Third air outlet; 121: Drainage section; 122: Air supply section; 123: Air guide ring; 1231: First air guide ring; 1232: Second air guide ring; 1233: Middle air guide ring; 12311: First air guide front end; 12312: First air guide end; 12321: Second air guide front end; 12322: Second air guide end; 12331: Middle air guide front end; 12332: Middle air guide end; 131: Perpendicular line passing through the first air guide end; 132: Perpendicular line passing through the middle air guide end; 133: Perpendicular line passing through the second air guide end;

[0045] 21: First fan; 22: Second fan; 23: Third fan; 211: First duct partition; 212: Second duct partition; 213: First duct vent; 214: First damper; 232: Second damper; 231: Exhaust outlet of the third fan; 24: Connecting ventilation duct; 241: First side shell plate; 242: Second side shell plate;

[0046] 31: Third air duct partition; 301: Second air duct vent. Detailed Implementation

[0047] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0048] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0050] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0051] Unless otherwise stated, the term "multiple" means two or more.

[0052] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0053] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0055] This disclosure provides a multi-fan floor-standing air conditioner indoor unit.

[0056] Optionally, the multi-fan floor-standing air conditioner indoor unit includes a housing 1 and a fan assembly. The housing 1 has a first air outlet 101, a second air outlet 102, and a third air outlet 103 arranged sequentially from top to bottom. The fan assembly is disposed within the housing 1 and includes a first fan 21, a second fan 22, and a third fan 23 arranged sequentially from top to bottom. The first fan 21 is connected to the first air outlet 101, the second fan 22 is connected to the second air outlet 102, and the third fan 23 is connected to the third air outlet 103. A damper assembly is provided between the exhaust port 231 of the third fan and the second air outlet 102. When the damper assembly is closed, the exhaust port 231 of the third fan is connected to the third air outlet 103; when the damper assembly is open, the exhaust port 231 of the third fan is connected to the second air outlet 102.

[0057] The housing 1 of the multi-fan floor-standing air conditioner indoor unit provided in this embodiment is provided with a first air outlet 101, a second air outlet 102 and a third air outlet 103. The three air outlets are respectively set at different heights of the housing 1, and the first fan 21, the second fan 22 and the third fan 23 are used to supply air to the three air outlets respectively, thus meeting the user's needs for different air supply heights.

[0058] Furthermore, a damper assembly is provided between the exhaust port 231 of the third fan and the second outlet 102, which can be opened or closed in a controlled manner. When the damper assembly is closed, the exhaust port 231 of the third fan and the second outlet 102 are blocked, and the air from the third fan 23 is sent out through the lower-positioned third outlet 103. When the damper assembly is open, the exhaust port 231 of the third fan and the second outlet 102 are connected, and the air from the third fan 23 can be sent out through the higher-positioned second outlet 102. In this way, the air from the second fan 22 and the third fan 23 is simultaneously sent out through the second outlet 102, increasing the air volume delivered by the second outlet 102.

[0059] Optionally, when the damper assembly is open, the air guide plate at the third air outlet 103 can be closed, so that the air from the third fan 23 can be delivered only through the second air outlet 102; or, the air guide plate at the third air outlet 103 can be opened, so that the air from the third fan 23 can be delivered through both the second air outlet 102 and the third air outlet 103.

[0060] Optionally, the first air outlet 101 is a circular air outlet, located at the front of the housing 1; there are two second air outlets 102, located on either side directly below the first air outlet 101. Optionally, there can be one or two third air outlets 103. Figure 1 , Figure 6 , Figure 8 and Figure 9 As shown.

[0061] Optionally, air guide plates are provided at the first air outlet 101, the second air outlet 102 and the third air outlet 103 respectively to open or close the air outlet.

[0062] Optionally, the first fan 21 and the third fan 23 are centrifugal fans, and the second fan 22 is a cross-flow fan.

[0063] Optionally, the second fan 22 is provided with a first air duct baffle 211 and a second air duct baffle 212 at both ends. The first air duct baffle 211 is provided between the first fan 21 and the second fan 22, and the second air duct baffle 212 is provided between the second fan 22 and the third fan 23. The second air duct baffle 212 is provided with a first air duct vent 213. The damper assembly includes a first damper 214, which is provided at the first air duct vent 213 of the second air duct baffle 212.

[0064] The second fan 22 has a first air duct baffle 211 and a second air duct baffle 212 at both ends, and a first air duct vent 213 on the second air duct baffle 212 is used to connect the third fan 23 to the second air outlet 102. Figure 2 and Figure 3 As shown.

[0065] Optionally, the first damper 214 can rotate under the drive of the first drive assembly to open or close the first air duct vent 213. Optionally, the first drive assembly includes a first motor and gears, etc.

[0066] Optionally, the damper assembly further includes a second damper 232, wherein the second damper 232 is disposed at the exhaust port 231 of the third fan. For example... Figure 4 and Figure 5 As shown.

[0067] The second damper 232 is disposed at the exhaust port 231 of the third fan to open or close the exhaust port 231 of the third fan. Optionally, the second damper 232 can rotate under the drive of the second drive assembly to open or close the exhaust port 231 of the third fan. Optionally, the second drive assembly includes a second motor and gears, etc.

[0068] The multi-fan floor-standing air conditioner indoor unit provided in this embodiment can achieve at least the following air supply modes:

[0069] First, control the first damper 214 to close, the second damper 232 to open, and the air from the second fan 22 to be sent out through the second air outlet 102; the air from the third fan 23 to be sent out through the third air outlet 103.

[0070] Second, control the first damper 214 to open and the second damper 232 to close, so that the air from the second fan 22 is sent out through the second air outlet 102 and the third air outlet 103.

[0071] Third, control the opening of the first damper 214 and the second damper 232. When the guide plate at the third air outlet 103 is closed, the air from the second fan 22 and the third fan 23 is sent out through the second air outlet 102. When the guide plate at the second air outlet 102 is closed, the air from the second fan 22 and the third fan 23 is sent out through the third air outlet 103.

[0072] Optionally, when both the first damper 214 and the second damper 232 are open and the air guide plate at the third air outlet 103 is closed, the air volume of the second air outlet 102 can be adjusted by controlling the opening angle or opening size of the first damper 214 and / or the second damper 232.

[0073] Optionally, a connecting ventilation duct 24 is provided between the exhaust port 231 of the third fan and the partition plate 212 of the second air duct, wherein the third air outlet 103 is opened on the side of the connecting ventilation duct 24.

[0074] The connecting ventilation duct 24 is located between the exhaust port 231 of the third fan and the partition plate 212 of the second duct, so that the air from the third fan 23 can be sent out from the third exhaust port 103 after passing through the connecting ventilation duct 24.

[0075] Optionally, when the second damper 232 is in the open state, the height of the second damper 232 is H1, and the height of the connecting ventilation duct 24 is H2, where H2 ≥ H1. Figure 7 As shown.

[0076] The second damper 232 rotates upward under the drive of the second drive assembly to open the exhaust port 231 of the third fan. In this embodiment, the height H2 of the connecting ventilation duct 24 is greater than or equal to the height H1 of the second damper 232, which allows the second damper 232 to open vertically.

[0077] Optionally, the housing 1 includes a first side shell plate portion 241 and a second side shell plate portion 242 located on both sides of the ventilation duct 24, wherein a third air outlet 103 is formed in the first side shell plate portion 241, and a second damper 232 is disposed near the second side shell plate portion 242. This improves the air supply effect to the third air outlet 103 when the second damper 232 is opened.

[0078] Optionally, the first air outlet 101 includes an air guide ring 123, a flow guide section 121 disposed at the first end of the air guide ring 123, and a flow supply section 122 disposed at the second end of the air guide ring 123. The width of the air duct of the first air outlet 101 from the flow guide section 121 to the flow supply section 122 is Q, the flow guide width of the flow guide section 121 is Q1, and 0.2Q≤Q1≤0.7Q.

[0079] The first air outlet 101 is provided with a flow-guiding section 121 and an air supply section 122 at both ends. The flow-guiding section 121 increases the air volume and prevents the airflow from flowing back during the air supply process of the first air outlet 101, thereby improving the air supply effect of the air supply section 122 of the first air outlet 101.

[0080] Optionally, such as Figure 11 As shown, the duct width of the first air outlet 101 from the guide section 121 to the supply section 122 is Q, and the guide width of the guide section 121 is Q1, where 0.2Q ≤ Q1 ≤ 0.7Q. Thus, the guide section 121 occupies a certain proportion of the overall duct width Q of the first air outlet 101, improving the air intake effect of the guide section 121 and preventing backflow of air from occurring at the first air outlet 101. Optionally, the guide width Q1 of the guide section 121 can be 0.2Q, 0.3Q, 0.35Q, 0.4Q, or 0.5Q.

[0081] Optionally, the air supply width of the air supply section 122 is Q2, where Q1 ≥ Q2.

[0082] In this embodiment, the air supply width Q2 of the air supply section 122 is less than or equal to the drainage width Q1 of the drainage section 121. This results in the drainage section 121 occupying a relatively large proportion of the overall duct width of the first air outlet 101, thus improving the air supply effect of the first air outlet 101. Optionally, the air supply width Q2 of the air supply section 122 can be 0.2Q, 0.3Q, 0.35Q, or 0.4Q. Figure 11 As shown.

[0083] Optionally, the air guide ring 123 includes a first air guide ring 1231 near the air intake section 121, a second air guide ring 1232 near the air supply section 122, and a middle air guide ring 1233 located between the first air guide ring 1231 and the second air guide ring 1232. The middle air guide ring 1233 includes a middle air guide front end 12331 and a middle air guide end 12332 along the air guide direction of the air guide ring 123. The angle between the outer tangent of the middle air guide front end 12331 and the horizontal line is W1, and the angle between the outer tangent of the middle air guide end 12332 and the horizontal line is W2, and W1≥W2.

[0084] like Figures 12 to 15As shown, the air guide ring 123 includes a first air guide ring 1231, a second air guide ring 1232 and a middle air guide ring 1233. The first air guide ring 1231 and the middle air guide ring 1233 form an air guide path, and the second air guide ring 1232 and the middle air guide ring 1233 form another air guide path.

[0085] Along the airflow direction of the air guide ring 123, the central air guide ring 1233 includes a central air guide front end 12331 and a central air guide end 12332. Optionally, the angle between the outer tangent of the central air guide front end 12331 and the horizontal line is W1, and optionally, 0° < W1 < 90°. The angle between the outer tangent of the central air guide end 12332 and the horizontal line is W2, and optionally, 0° < W2 < 90°.

[0086] Optionally, 30°≤W1≤65°; and / or, 10°≤W2≤45°. For example, in one embodiment, W1 is 65° and W2 is 30° in the same central air guide ring 1233; in another embodiment, W1 is 50° and W2 is 25° in the same central air guide ring 1233; in yet another embodiment, W1 is 45° and W2 is 15° in the same central air guide ring 1233.

[0087] Optionally, along the air guiding direction of the air guide ring 123, the first air guide ring 1231 includes a first air guide front end 12311 and a first air guide end 12312. The angle between the outer tangent of the first air guide front end 12311 and the horizontal line is W3, and the angle between the outer tangent of the first air guide end 12312 and the horizontal line is W4. Optionally, 0° < W3 < 90°; 0° < W4 < 90°; optionally, 30° ≤ W3 ≤ 65°; and / or, 10° ≤ W4 ≤ 45°.

[0088] Optionally, along the air guiding direction of the air guide ring 123, the second air guide ring 1232 includes a second air guide front end 12321 and a second air guide end 12322. The angle between the outer tangent of the second air guide front end 12321 and the horizontal line is W5, and the angle between the outer tangent of the second air guide end 12322 and the horizontal line is W6. Optionally, 0° < W5 < 90°; 0° < W6 < 90°; optionally, 30° ≤ W5 ≤ 65°; and / or, 10° ≤ W6 ≤ 45°.

[0089] Optionally, the third air duct partition 31 includes a partition area and an air duct opening area with a second air duct vent 301. The first air guide ring 1231 includes a first air guide front end 12311 and a first air guide end 12312 along the air guide direction of the air guide ring 123. The vertical line passing through the first air guide end 12312 falls into the partition area.

[0090] It is understandable that the area in the third air duct partition 31 where the second air duct vent 301 is located is the air duct opening area, such as... Figure 12 As shown in Figure B, the area in the third air duct partition 31 where the second air duct vent 301 is not provided is the partition area.

[0091] In this embodiment, the third air duct partition 31 has a second air duct vent 301, which is located on the side of the third air duct partition 31. A vertical line 131 passing through the end of the first air guide falls into the partition area, and a vertical line 132 passing through the end of the middle air guide ring also falls into the partition area. Thus, the airflow path between the first air guide ring 1231 and the middle air guide ring 1233 does not directly correspond vertically to the second air duct vent 301. A vertical line 133 passing through the end of the second air guide falls into the air duct opening area, so at least a portion of the airflow path between the second air guide ring 1232 and the middle air guide ring 1233 corresponds vertically to the second air duct vent 301.

[0092] Optionally, the distance from the first air guide end 12312 of the first air guide ring 1231 to the third air duct partition 31 is Y1, the distance from the middle air guide end 12332 of the middle air guide ring 1233 to the third air duct partition 31 is Y2, and the distance from the second air guide end 12322 of the second air guide ring 1232 to the third air duct partition 31 is Y3, wherein Y1 > Y2 > Y3.

[0093] As mentioned above, the airflow path between the first air guide ring 1231 and the middle air guide ring 1233 does not directly correspond to the second air duct vent 301 in the vertical direction. In this embodiment, Y1 > Y2 > Y3, which improves the airflow effect of the airflow path between the first air guide ring 1231 and the middle air guide ring 1233 from the second air duct vent 301, thereby improving the airflow effect of the first air outlet 101.

[0094] Optionally, the angle between the line connecting the first air guide end 12312 of the first air guide ring 1231 and the second air guide end 12322 of the second air guide ring 1232 and the horizontal line is V1, where 0°<V1≤10°.

[0095] In this way, the second air guide end 12322 will not block the first air guide end 12312 and the middle air guide end 12332, thus improving the air guiding effect of the airflow from the second air duct vent 301 between the first air guide ring 1231 and the middle air guide ring 1233.

[0096] Optionally, the angle between the line connecting the first air guide front end 12311 of the first air guide ring 1231 and the second air guide front end 12321 of the second air guide ring 1232 and the horizontal line is V2, where 0° < V2 ≤ 30°. This prevents backflow of air from the first air outlet 101 and improves the air outlet effect of the first air outlet 101.

[0097] This embodiment provides a vector diagram of the air supply at the first air outlet 101 of a vertical air conditioner indoor unit, such as... Figure 16 As shown, in this embodiment, the drainage width Q1 of the drainage section is 0.4Q; the angle W1 between the outer tangent of the front end of the middle air guide and the horizontal line is 55°, and the angle W2 between the outer tangent of the end of the middle air guide and the horizontal line is 25°; the distance from the first air guide end of the first air guide ring to the first air duct partition is Y1, the distance from the middle air guide end of the middle air guide ring to the first air duct partition is Y2, and the distance from the second air guide end of the second air guide ring to the first air duct partition is Y3, wherein Y1 > Y2 > Y3.

[0098] from Figure 16 As can be seen, the air outlet at point 101 receives part of its air from the guide ring and part from the intake section. Figure 16 The circled area clearly shows that the air intake section has a high air volume, and the arrows pointing to the right all point towards the first air outlet 101, indicating that the airflow flows from the air intake section to the air supply section. It can be seen that the air intake section of the first air outlet 101 in the vertical air conditioner indoor unit provided in this embodiment improves the air intake effect, prevents backflow of airflow during the air supply process, and increases the air supply volume of the first air outlet 101.

[0099] It is understood that the air supply effect achieved by other solutions not listed in this embodiment is similar to that of this embodiment.

[0100] Figure 17 This is a comparative vector diagram of the air supply from the first air outlet. In this comparative example, the airflow width of the diversion section is relatively small, only 0.1 times the width of the air duct at the first air outlet. From Figure 17 As can be seen, the air volume of this comparative example is relatively small, and some of the airflow is directed in the opposite direction to the opening direction of the first air outlet, such as... Figure 17 As shown in the circled area, the arrow pointing to the left is opposite to the direction of the first air outlet. This indicates that the comparative model has a smaller draft volume, thus reducing the airflow from the first air outlet.

[0101] In some embodiments, the air conditioner includes a multi-fan floor-standing air conditioner indoor unit as described above.

[0102] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A multi-fan floor-standing air conditioner indoor unit, characterized in that, include: The housing (1) is provided with a first air outlet (101), a second air outlet (102), and a third air outlet (103) from top to bottom; and, A fan assembly is housed within the casing (1). The fan assembly includes a first fan (21), a second fan (22), and a third fan (23) arranged sequentially from top to bottom. The first fan (21) is connected to the first air outlet (101), the second fan (22) is connected to the second air outlet (102), and the third fan (23) is connected to the third air outlet (103). A damper assembly is provided between the exhaust port (231) of the third fan and the second air outlet (102). When the damper assembly is closed, the exhaust port (231) of the third fan is connected to the third air outlet (103); when the damper assembly is open, the exhaust port (231) of the third fan is connected to the second air outlet (102).

2. The multi-fan floor-standing air conditioner indoor unit according to claim 1, characterized in that, The second fan (22) is provided with a first air duct baffle (211) and a second air duct baffle (212) at both ends. The first air duct baffle (211) is located between the first fan (21) and the second fan (22), and the second air duct baffle (212) is located between the second fan (22) and the third fan (23). The second air duct partition (212) has a first air duct vent (213), and the damper assembly includes a first damper (214), which is located at the first air duct vent (213) of the second air duct partition (212).

3. The multi-fan floor-standing air conditioner indoor unit according to claim 2, characterized in that, The damper assembly also includes a second damper (232), The second damper (232) is located at the exhaust port (231) of the third fan.

4. The multi-fan floor-standing air conditioner indoor unit according to claim 3, characterized in that, A connecting ventilation duct (24) is provided between the exhaust port (231) of the third fan and the partition plate (212) of the second air duct. The third air outlet (103) is located on the side of the connecting ventilation duct (24).

5. The multi-fan floor-standing air conditioner indoor unit according to claim 4, characterized in that, When the second air damper (232) is in the open state, the height of the second air damper (232) is H1, and the height of the connecting ventilation duct (24) is H2. Where H2 ≥ H1.

6. The multi-fan floor-standing air conditioner indoor unit according to claim 4, characterized in that, The housing (1) includes a first side shell plate portion (241) and a second side shell plate portion (242) located on both sides of the ventilation duct (24). The third air outlet (103) is located on the first side shell plate (241), and the second air damper (232) is located near the second side shell plate (242).

7. The multi-fan floor-standing air conditioner indoor unit according to any one of claims 1 to 6, characterized in that, The first air outlet (101) includes an air guide ring (123), a flow-in section (121) disposed at the first end of the air guide ring (123), and a flow-out section (122) disposed at the second end of the air guide ring (123). The width of the air duct of the first air outlet (101) from the flow-in section (121) to the flow-out section (122) is Q, the flow-in width of the flow-in section (121) is Q1, and 0.2Q≤Q1≤0.7Q; The air supply width of the air supply section (122) is Q2, where Q1≥Q2.

8. The multi-fan floor-standing air conditioner indoor unit according to claim 7, characterized in that, The air guide ring (123) includes a first air guide ring (1231) near the air intake section (121), a second air guide ring (1232) near the air supply section (122), and a middle air guide ring (1233) located between the first air guide ring (1231) and the second air guide ring (1232). Along the air guiding direction of the air guide ring (123), the middle air guide ring (1233) includes a middle air guide front end (12331) and a middle air guide end end (12332). The angle between the outer tangent of the middle air guide front end (12331) and the horizontal line is W1, and the angle between the outer tangent of the middle air guide end end (12332) and the horizontal line is W2. W1≥W2; and / or, 30°≤W1≤65°; and / or, 10°≤W2≤45°。 9. The multi-fan floor-standing air conditioner indoor unit according to claim 8, characterized in that, A third duct partition (31) is provided between the exhaust port of the first fan (21) and the first outlet port (101). The third duct partition (31) has a second duct vent (301) that is connected to the first outlet port (101). The third duct partition (31) includes a partition area and a duct opening area with the second duct vent (301). Along the air guiding direction of the air guide ring (123), the first air guide ring (1231) includes a first air guide front end (12311) and a first air guide end (12312), and the vertical line passing through the first air guide end (12312) falls into the partition area.

10. An air conditioner, characterized in that, Including the multi-fan floor-standing air conditioner indoor unit as described in any one of claims 1 to 9.

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