An air conditioner indoor unit, an air conditioner, and a control method thereof

Abstract

The application discloses an air conditioner indoor unit, an air conditioner and a control method thereof. The evaporator of the air conditioner indoor unit is arranged on one side of a volute, a wind baffle is arranged on the other side of the volute, a first air duct is formed between the wind baffle and the volute, a partition plate is rotatably arranged in the first air duct and divides the first air duct into a first air duct section and a second air duct section, the first air duct section is communicated with a fresh air inlet, the second air duct section is communicated with a first air outlet, and a double-suction fan is arranged in the volute. When the heat exchange fresh air mode is used, the double-suction fan mixes the fresh air entering through the fresh air inlet and the airflow entering through the air inlet of the air conditioner indoor unit and being heat-exchanged with the evaporator in the volute, so that the temperature adjustment of the fresh air is realized, and the comfort requirement of a user is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner indoor unit, an air conditioner and a control method thereof. BACKGROUND

[0002] A fresh air conditioner in the related art solves the problem of large temperature difference between outdoor air blown into the room by a fresh air component and indoor air affecting comfort by designing a fresh air outlet below an air outlet and opening obliquely upward, so that the fresh air flow blown out can be mixed with the air flow after heat exchange with the air conditioner. However, the fresh air conditioner may have uneven mixing of fresh air and air conditioner air after the fresh air and air conditioner air are mixed after being blown out. SUMMARY

[0003] The present application aims to provide an air conditioner indoor unit, an air conditioner and a control method thereof, and aims to solve the technical problem of uneven mixing of fresh air and air conditioner air in the fresh air conditioner in the related art.

[0004] To solve the above problems, according to one aspect of the present application, an air conditioner indoor unit is provided, which comprises an evaporator, a volute, a wind shield, a double-suction fan and a partition plate. The evaporator is arranged on one side of the volute. The wind shield is arranged on the other side of the volute and a first air duct is formed between the evaporator and the wind shield. The partition plate is rotatably arranged in the first air duct, and the first air duct is divided into a first air duct section and a second air duct section. The first air duct section is in communication with a fresh air outlet, and the second air duct section is in communication with a first air outlet. The double-suction fan is arranged in the volute. In a heat exchange fresh air mode, fresh air entering through the fresh air outlet and air flow after heat exchange with the evaporator are mixed in the volute and then discharged through the first air outlet.

[0005] In some embodiments, the volute comprises a volute cover assembly and a volute assembly. The evaporator is arranged on the side of the volute assembly away from the volute cover assembly. The wind shield is arranged on the side of the volute cover assembly away from the volute assembly. The side wall of the volute cover assembly away from the volute assembly is configured with a first through hole in communication with the first air duct section and a third through hole in communication with the second air duct section. The side wall of the volute assembly away from the volute cover assembly is configured with a second through hole in communication with the side facing the evaporator.

[0006] In some embodiments, the air conditioner indoor unit further comprises a damper assembly and a first baffle. The damper assembly is arranged at the first through hole. The first baffle is rotatably arranged at the first air outlet to close the first through hole and the first air outlet in a dry mode, so that the air flow through the evaporator is discharged from the fresh air outlet.

[0007] In some embodiments, the damper assembly comprises a bracket and a plurality of sector-shaped baffles, the bracket is arranged at the first through hole and has a plurality of sector-shaped through holes distributed circumferentially along the first through hole, and each of the sector-shaped through holes is rotatably arranged with a sector-shaped baffle.

[0008] In some embodiments, the two air inlets of the double-suction fan are in communication with the first through hole and the second through hole, the volute cover assembly and the volute assembly are configured with an air outlet channel on a side of the double-suction fan away from the third through hole, and an air outlet of the double-suction fan is in communication with the third through hole and the air outlet channel.

[0009] In some embodiments, the volute cover assembly is configured with a fourth through hole on a side of the double-suction fan away from the third through hole, the volute assembly is configured with a fifth through hole on a side of the double-suction fan away from the third through hole, the fifth through hole is connected to the fresh air inlet on a side away from the fourth through hole, a side wall of the volute cover assembly away from the volute assembly is rotatably arranged with a second baffle, and a side wall of the volute assembly away from the volute cover assembly is rotatably arranged with a third baffle.

[0010] so that the fifth through hole has a first state in which the fourth through hole is open, and a second state in which the fifth through hole is blocked by the third baffle and the fourth through hole is blocked by the second baffle.

[0011] In some embodiments, the air conditioner indoor unit comprises a sub-fan, the volute is configured with a sixth through hole in communication with a side facing the evaporator, the volute is configured with a third air outlet, and the sub-fan is arranged in the volute, with an air inlet and an air outlet of the sub-fan in communication with the sixth through hole and the third air outlet, respectively.

[0012] According to another aspect of the present application, the embodiments of the present application further provide an air conditioner, which comprises the air conditioner indoor unit as described above.

[0013] According to another aspect of the present application, the embodiments of the present application further provide a control method of an air conditioner as described above, which comprises the following steps.

[0014] acquiring a working mode of the air conditioner;

[0015] when the air conditioner is in a heat exchange fresh air mode;

[0016] controlling the partition plate to close the first air duct section and the second air duct section;

[0017] starting the double-suction fan.

[0018] In some embodiments, when the air conditioner indoor unit comprises a fourth through hole, a fifth through hole, a second baffle, a third baffle, a volute cover assembly, a damper assembly, a first through hole, and a volute assembly, and the air conditioner is in a heat exchange fresh air mode,

[0019] Further comprising, before turning on the double-suction fan:

[0020] Controlling the damper assembly to open the first through hole;

[0021] Controlling the free end of the second baffle to abut against the volute assembly, and controlling the free end of the third baffle to abut against the volute cover assembly.

[0022] In some embodiments, when the air conditioner indoor unit comprises a damper assembly, a first through hole, and a first baffle, and the air conditioner is in a drying mode,

[0023] Controlling the partition to open the first air duct section and the second air duct section;

[0024] Controlling the damper assembly to close the first through hole;

[0025] Controlling the first baffle to close the first air outlet;

[0026] Turning on the double-suction fan.

[0027] In some embodiments, when the air conditioner indoor unit comprises a fourth through hole, a fifth through hole, a second baffle, a third baffle, a volute cover assembly, and a volute assembly, and the air conditioner is in a drying mode,

[0028] Further comprising, before turning on the double-suction fan:

[0029] Controlling the free end of the second baffle to abut against the volute assembly, and controlling the free end of the third baffle to abut against the volute cover assembly.

[0030] In some embodiments, when the air conditioner is in a heat exchange mode, and the air conditioner indoor unit comprises a first baffle, a first through hole, and a damper assembly;

[0031] Controlling the partition to close the first air duct section and the second air duct section;

[0032] Controlling the first baffle to open the first air outlet;

[0033] Controlling the damper assembly to close the first through hole;

[0034] Turning on the double-suction fan.

[0035] In some embodiments, when the air conditioner indoor unit comprises a fourth through hole, a fifth through hole, a second baffle, a third baffle, and the air conditioner is in a heat exchange mode,

[0036] Before starting the double suction fan, the method further comprises:

[0037] controlling the second baffle to block the fourth through hole, and controlling the third baffle to block the fifth through hole.

[0038] In some embodiments, when the air conditioner is in a heat exchange mode, and the air conditioner indoor unit comprises a secondary fan, the secondary fan is started.

[0039] Compared with the prior art, the air conditioner indoor unit has at least the following beneficial effects:

[0040] The air conditioner indoor unit disclosed by the embodiment of the present application comprises an evaporator, a volute, a wind baffle, a double suction fan and a partition plate. The evaporator is arranged on one side of the volute, and the side of the evaporator away from the volute is an air inlet of the air conditioner indoor unit. The wind baffle is arranged on the other side of the volute, and a first air duct is formed between the wind baffle and the volute. The partition plate is rotatably arranged in the first air duct and divides the first air duct into a first air duct section and a second air duct section. The first air duct section is in communication with a fresh air inlet, and the second air duct section is in communication with a first air outlet. The double suction fan is arranged in the volute. When the double suction fan is in a heat exchange fresh air mode, the fresh air entering the fresh air inlet and the air current entering the air inlet of the air conditioner indoor unit and exchanged with the evaporator can be mixed in the volute, and then discharged to the indoor environment through the first air outlet. It can be seen that the air conditioner indoor unit of the present application can mix the air conditioner air and the fresh air more uniformly in the heat exchange fresh air mode, realize the temperature regulation of the fresh air, and meet the user's comfort requirement.

[0041] In another aspect, the air conditioner provided by the present application is manufactured based on the above-mentioned air conditioner indoor unit, and the beneficial effects thereof refer to those of the above-mentioned air conditioner indoor unit, which will not be described here.

[0042] In another aspect, the control method provided by the present application is based on the above-mentioned air conditioner, and the beneficial effects thereof refer to those of the above-mentioned air conditioner, which will not be described here.

[0043] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application and can be implemented according to the content of the description, the following will describe the preferred embodiments of the present application in detail with the help of the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0045] Figure 1 The exploded structural schematic view of the air conditioner indoor unit provided by the embodiment of the present application;

[0046] Figure 2 The flow path schematic view of the air flow when the air conditioner indoor unit provided by the embodiment of the present application is in the heat exchange fresh air mode;

[0047] Figure 3 The exploded structural schematic view of the damper assembly of the air conditioner indoor unit provided by the embodiment of the present application;

[0048] Figure 4 The structural schematic view of the damper assembly of the air conditioner indoor unit provided by the embodiment of the present application;

[0049] Figure 5 The structural schematic view of the damper assembly of the air conditioner indoor unit provided by the embodiment of the present application in another state;

[0050] Figure 6 The flow path schematic view of the air flow when the air conditioner indoor unit provided by the embodiment of the present application is in the dry mode;

[0051] Figure 7 The flow path schematic view of the air flow when the air conditioner indoor unit provided by the embodiment of the present application is in the heat exchange mode;

[0052] Figure 8 The structural schematic view of the air conditioner indoor unit provided by the embodiment of the present application when the free end of the second baffle plate abuts against the volute assembly and the free end of the third baffle plate abuts against the volute cover assembly.

[0053] Explanation of reference numerals:

[0054] 1. evaporator;

[0055] 2. volute; 21, volute cover assembly; 211, first through hole; 212, third through hole; 213, fourth through hole; 214, second baffle plate; 22, volute assembly; 221, second through hole; 222, fifth through hole; 223, third baffle plate; 224, sixth through hole; 23, air outlet passage; 24, third air outlet;

[0056] 3. baffle; 31, first air duct section; 32, second air duct section; 33, first air outlet; 331, first baffle plate;

[0057] 4. double-suction fan;

[0058] 5. partition plate;

[0059] 6. damper assembly; 61, bracket; 611, fan-shaped through hole; 62, fan-shaped baffle plate;

[0060] 7. auxiliary fan. DETAILED DESCRIPTION

[0061] To further clarify the technical hand of the present application and the effect achieved by the technical hand for the purpose of the present application, the following describes the specific embodiments, structures, features and effects according to the present application in detail with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0062] In the description of the present application, it should be clear that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence; the terms "vertical", "horizontal", "vertical", "front", "back", "left", "right", "up", "down", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not mean that the device or element referred to must have a particular orientation or position, and therefore cannot be understood as a limitation on the present application.

[0063] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] Embodiment 1

[0065] As Figures 1-8 shown, the air conditioner indoor unit provided by the embodiment of the present application includes an evaporator 1, a volute 2, a wind shield 3, a double-suction fan 4 and a partition plate 5. The evaporator 1 is arranged on one side of the volute 2. The wind shield 3 is arranged on the other side of the volute 2 and forms a first air duct between the two. The partition plate 5 is rotatably arranged in the first air duct and divides the first air duct into a first air duct section 31 and a second air duct section 32. The first air duct section 31 is in communication with a fresh air inlet. The second air duct section 32 is in communication with a first air outlet 33. The double-suction fan 4 is arranged in the volute 2. In the heat exchange fresh air mode, the fresh air entering through the fresh air inlet and the airflow after heat exchange with the evaporator 1 are mixed in the volute 2 and then discharged through the first air outlet 33.

[0066] In the embodiment, the air conditioner indoor unit comprises an evaporator 1, a volute 2, a baffle 3, a double-suction fan 4 and a partition plate 5. The evaporator 1 is arranged on one side of the volute 2, and the side of the evaporator 1 away from the volute 2 is an air inlet of the air conditioner indoor unit. The baffle 3 is arranged on the other side of the volute 2, and a first air duct is formed between the baffle 3 and the volute 2. The partition plate 5 is rotatably arranged in the first air duct and divides the first air duct into a first air duct section 31 and a second air duct section 32. The first air duct section 31 is in communication with a fresh air inlet, and the second air duct section 32 is in communication with a first air outlet 33. The double-suction fan 4 of the embodiment is arranged in the volute 2. When the heat exchange fresh air mode is used, the double-suction fan 4 can mix the fresh air entering the fresh air inlet and the air flow entering the air inlet of the air conditioner indoor unit and exchanged with the evaporator 1 in the volute 2, and then the mixed air is discharged to the indoor environment through the first air outlet 33. It can be seen that the air conditioner indoor unit of the embodiment can mix the air conditioner air and the fresh air more uniformly when the heat exchange fresh air mode is used, so as to adjust the temperature of the fresh air and meet the user's comfort requirement.

[0067] The air conditioner is in a specific operation mode;

[0068] When the air conditioner is in a heat exchange fresh air mode;

[0069] The partition plate 5 is controlled to close the first air duct section 31 and the second air duct section 32;

[0070] The double-suction fan 4 is started.

[0071] The flow path of the air flow in the heat exchange fresh air mode is as shown in Figure 2 .

[0072] In some embodiments, the volute 2 comprises a volute cover assembly 21 and a volute assembly 22. The evaporator 1 is located on the side of the volute assembly 22 away from the volute cover assembly 21. The baffle 3 is located on the side of the volute cover assembly 21 away from the volute assembly 22. The side wall of the volute cover assembly 21 away from the volute assembly 22 is configured with a first through hole 211 in communication with the first air duct section 31 and a third through hole 212 in communication with the second air duct section 32. The side wall of the volute assembly 22 away from the volute cover assembly 21 is configured with a second through hole 221 in communication with the side facing the evaporator 1.

[0073] In this embodiment, the volute 2 is formed by snapping together a volute cover assembly 21 and a volute assembly 22, and the wind shield 3 is located on the side of the volute cover assembly 21 away from the volute assembly 22. The side wall of the volute cover assembly 21 away from the volute assembly 22 is constructed with a first through hole 211 connected to the first air duct section 31 and a third through hole 212 connected to the second air duct section 32. The side wall of the volute assembly 22 away from the volute cover assembly 21 is constructed with a second through hole 221 connected to the side facing the evaporator 1, thereby enclosing and forming a flow path for the airflow.

[0074] In some embodiments, the air conditioner indoor unit further includes a damper assembly 6 and a first baffle 331, the damper assembly 6 is arranged at the first through hole 211, and the first baffle 331 is rotatably arranged at the first air outlet 33 to close the first through hole 211 and the first air outlet 33 in the drying mode, so that the air flow passing through the evaporator 1 is discharged from the fresh air outlet.

[0075] In this embodiment, the indoor unit of the air conditioner also includes a damper assembly 6 and a first baffle 331. The damper assembly 6 is arranged at the first through hole 211, and the first baffle 331 is rotatably arranged at the first air outlet 33. In the drying mode, the damper assembly 6 closes the first through hole 211 and the first baffle 331 closes the first air outlet 33. At this time, the air flow passing through the evaporator 1 is discharged from the fresh air outlet, which solves the problem that a large amount of condensed water remains on the surface of the evaporator 1 after the air conditioner is shut down and cannot be dried quickly, which is easy to breed bacteria. At the same time, it avoids the problem that the air flow that dries the evaporator 1 is discharged into the room after the air conditioner is shut down, affecting the user experience.

[0076] When the air conditioner is in operation, the working mode of the air conditioner is first obtained;

[0077] When the air conditioner is in dry mode,

[0078] Control the partition 5 to open the first air duct section 31 and the second air duct section 32;

[0079] Controlling the damper assembly 6 to close the first through hole 211;

[0080] Controlling the first baffle 331 to close the first air outlet 33;

[0081] Turn on the double suction fan 4.

[0082] The airflow path in drying mode is as follows Figure 6 shown.

[0083] This embodiment also solves the problem that the double-suction fan 4 cannot only suck air from one side into the fan, and realizes independent control of air intake through the air outlets on both sides of the double-suction fan 4.

[0084] In some embodiments, the damper assembly 6 comprises a bracket 61 and a sector baffle 62, the bracket 61 is arranged at the first through hole 211 and has a plurality of sector through holes 611 distributed circumferentially along the first through hole 211, and each sector through hole 611 is rotatably arranged with the sector baffle 62.

[0085] In the present embodiment, the bracket 61 is arranged at the first through hole 211, each sector through hole 611 of the bracket 61 is rotatably arranged with the sector baffle 62, and the first through hole 211 is opened or closed by driving the sector through hole 611 to rotate.

[0086] In some embodiments, the two air inlets of the double-suction fan 4 are in communication with the first through hole 211 and the second through hole 221, the volute cover assembly 21 and the volute assembly 22 are arranged on the side of the double-suction fan 4 away from the third through hole 212 to form an air outlet passage 23, and the air outlet of the double-suction fan 4 is in communication with the third through hole 212 and the air outlet passage 23.

[0087] In the present embodiment, the two air inlets of the double-suction fan 4 are in communication with the first through hole 211 and the second through hole 221, the volute cover assembly 21 and the volute assembly 22 are arranged on the side of the double-suction fan 4 away from the third through hole 212 to form an air outlet passage 23, and the air outlet of the double-suction fan 4 is in communication with the third through hole 212 and the air outlet passage 23. In the heat exchange mode, one route of the air-conditioning air after heat exchange flows into the indoor space from the air outlet passage 23, and another route flows into the indoor space from the first air outlet 33 when the first baffle 331 opens the first air outlet 33. The flow path of the air flow in the heat exchange mode is shown in FIG. 8. Figure 7

[0088] In some embodiments, the volute cover assembly 21 is arranged on the side of the double-suction fan 4 away from the third through hole 212 to form a fourth through hole 213, the volute assembly 22 is arranged on the side of the double-suction fan 4 away from the third through hole 212 to form a fifth through hole 222, the side of the fifth through hole 222 away from the fourth through hole 213 is connected with the fresh air inlet, the side wall of the volute cover assembly 21 away from the volute assembly 22 is rotatably arranged with a second baffle 214, and the side wall of the volute assembly 22 away from the volute cover assembly 21 is rotatably arranged with a third baffle 223.

[0089] So that the fifth through hole 222 has the first state that the fourth through hole 213 is in communication;

[0090] and the second state that the fifth through hole 222 is blocked by the third baffle 223 and the fourth through hole 213 is blocked by the second baffle 214.

[0091] ​Specifically, in the heat exchange fresh air mode or the drying mode, the free end of the second baffle 214 abuts against the volute assembly 22, and the free end of the third baffle 223 abuts against the volute cover assembly 21, so that the fourth through hole 213 and the fifth through hole 222 are in conduction, that is, in the heat exchange fresh air mode or the drying mode, the free end of the second baffle 214 is switched to abut against the volute assembly 22, and the free end of the third baffle 223 is switched to abut against the volute cover assembly 21, so that the fifth through hole 222 and the fourth through hole 213 are switched to the first state;

[0092] In the heat exchange mode, the second baffle 214 blocks the fourth through hole 213, and the third baffle 223 blocks the fifth through hole 222, that is, in the heat exchange mode, the fourth through hole 213 is blocked by the second baffle 214, and the fifth through hole 222 is blocked by the third baffle 223, so that the fifth through hole 222 and the fourth through hole 213 are switched to the second state of being blocked.

[0093] In the heat exchange fresh air mode, the free end of the second baffle 214 abuts against the volute assembly 22, and the free end of the third baffle 223 abuts against the volute cover assembly 21, so that the second baffle 214 and the third baffle 223 form a channel to make the fourth through hole 213 and the fifth through hole 222 in conduction; the fresh air entering the fresh air inlet passes through the fifth through hole 222, the fourth through hole 213, and enters the first air duct section 31, and the flow path of the air flow in the heat exchange fresh air mode is as shown in Figure 2 .

[0094] In the drying mode, the free end of the second baffle 214 abuts against the volute assembly 22, and the free end of the third baffle 223 abuts against the volute cover assembly 21, so that the second baffle 214 and the third baffle 223 form a channel to make the fourth through hole 213 and the fifth through hole 222 in conduction; the drying air flow sequentially passes through the fourth through hole 213, the fifth through hole 222, and the fresh air outlet to be discharged outdoors, and the flow path of the air flow in the drying mode is as shown in Figure 6 .

[0095] Since the fourth through hole 213 and the fifth through hole 222 are arranged on the volute cover assembly 21 and the volute assembly 22 at the air outlet channel 23, in the heat exchange mode, the fourth through hole 213 is blocked by the second baffle 214, and the fifth through hole 222 is blocked by the third baffle 223, so that one way of the air-conditioning air after heat exchange flows into the room from the air outlet channel 23, and another way flows into the room from the first air outlet 33 when the first baffle 331 opens the first air outlet 33, and the flow path of the air flow in the heat exchange mode is as shown in Figure 7 .

[0096] In some embodiments, the air conditioner indoor unit comprises a sub-fan 7, the volute 2 is configured with a sixth through hole 224 which is in communication with a side facing the evaporator 1, the volute 2 is configured with a third air outlet 24, the sub-fan 7 is arranged in the volute 2, and the air inlet and air outlet of the sub-fan 7 are in communication with the sixth through hole 224 and the third air outlet 24 respectively.

[0097] In the present embodiment, in the heat exchange mode, the air conditioner air after heat exchange with the evaporator 1 flows into the room through the sixth through hole 224 and the third air outlet 24 by the sub-fan 7. The flow path of the air flow in the heat exchange mode is shown in FIG. 4. Figure 7

[0098] In addition, the air conditioner indoor unit of the present application can realize blowing of fresh air and air conditioner air at the same time, and meet different needs of consumers.

[0099] Embodiment 2

[0100] The present application also provides an air conditioner comprising the air conditioner indoor unit of embodiment 1.

[0101] Embodiment 3

[0102] The present application also provides a control method of the air conditioner of embodiment 2, which comprises:

[0103] acquiring the working mode of the air conditioner;

[0104] when the air conditioner is in the heat exchange fresh air mode;

[0105] controlling the baffle 5 to close the first air duct section 31 and the second air duct section 32;

[0106] turning on the double suction fan 4.

[0107] In some embodiments, when the air conditioner indoor unit comprises a fourth through hole 213, a fifth through hole 222, a second baffle 214, a third baffle 223, a volute cover assembly 21, a damper assembly 6, a first through hole 211 and a volute assembly 22, and the air conditioner is in the heat exchange fresh air mode,

[0108] Before turning on the double suction fan 4, the method further comprises:

[0109] controlling the damper assembly 6 to open the first through hole 211; controlling the free end of the second baffle 214 to abut against the volute assembly 22; and controlling the free end of the third baffle 223 to abut against the volute cover assembly 21.

[0110] In some embodiments, when the air conditioner indoor unit comprises a damper assembly 6, a first through hole 211 and a first baffle 331, and the air conditioner is in the dry mode,​

[0111] controlling the partition 5 to open the first air duct section 31 and the second air duct section 32;

[0112] controlling the damper assembly 6 to close the first through hole 211;

[0113] controlling the first baffle 331 to open the first air outlet 33;

[0114] opening the double suction fan 4.

[0115] In some embodiments, when the air conditioner indoor unit comprises a fourth through hole 213, a fifth through hole 222, a second baffle 214, a third baffle 223, a volute cover assembly 21 and a volute assembly 22, and the air conditioner is in a dry mode,

[0116] Before opening the double suction fan 4, the method further comprises:

[0117] controlling the free end of the second baffle 214 to abut against the volute assembly 22, and controlling the free end of the third baffle 223 to abut against the volute cover assembly 21.

[0118] In some embodiments, when the air conditioner is in a heat exchange mode, and the air conditioner indoor unit comprises a first baffle 331, a first through hole 211 and a damper assembly 6;

[0119] controlling the partition 5 to close the first air duct section 31 and the second air duct section 32;

[0120] controlling the first baffle 331 to open the first air outlet 33;

[0121] controlling the damper assembly 6 to close the first through hole 211;

[0122] opening the double suction fan 4.

[0123] In some embodiments, when the air conditioner indoor unit comprises a fourth through hole 213, a fifth through hole 222, a second baffle 214, a third baffle 223, and the air conditioner is in a heat exchange mode,

[0124] Before opening the double suction fan 4, the method further comprises:

[0125] controlling the second baffle 214 to block the fourth through hole 213, and controlling the third baffle 223 to block the fifth through hole 222.

[0126] In some embodiments, when the air conditioner is in a heat exchange mode, and the air conditioner indoor unit comprises a secondary fan 7, opening the secondary fan 7.

[0127] In summary, those skilled in the art can clearly understand the specific working process of the devices, apparatuses and units described above for the convenience and brevity of description, which can refer to the corresponding process in the foregoing method embodiments, and will not be described here.

[0128] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An indoor unit of an air conditioner, characterized by comprising: The air conditioner indoor unit comprises an evaporator, a volute, a wind baffle, a double-suction fan and a partition plate, the evaporator is arranged on one side of the volute, the wind baffle is arranged on the other side of the volute, and a first air duct is formed between the evaporator and the wind baffle, the partition plate is rotatably arranged in the first air duct and divides the first air duct into a first air duct section and a second air duct section, the first air duct section is communicated with a fresh air inlet, the second air duct section is communicated with a first air outlet, and the double-suction fan is arranged in the volute, and in a heat exchange fresh air mode, the fresh air entering through the fresh air inlet and the airflow after heat exchange with the evaporator are mixed in the volute and then discharged through the first air outlet.

2. The air conditioner indoor unit according to claim 1, characterized by, The volute comprises a buckled volute cover assembly and a volute assembly, the evaporator is arranged on the side of the volute assembly away from the volute cover assembly, the wind baffle is arranged on the side of the volute cover assembly away from the volute assembly, the side wall of the volute cover assembly away from the volute assembly is provided with a first through hole communicated with the first air duct section and a third through hole communicated with the second air duct section, and the side wall of the volute assembly away from the volute cover assembly is provided with a second through hole communicated with the side of the volute assembly facing the evaporator. 3.The indoor unit of claim 2, wherein, The air conditioner indoor unit further comprises a damper assembly and a first baffle, the damper assembly is arranged at the first through hole, and the first baffle is rotatably arranged at the first air outlet to close the first through hole and the first air outlet in a dry mode, so that the airflow passing through the evaporator is discharged from the fresh air inlet. 4.The indoor unit of claim 3, wherein, The damper assembly comprises a bracket and a sector baffle, the bracket is arranged at the first through hole and has a plurality of sector through holes distributed circumferentially along the first through hole, and the sector baffle is rotatably arranged at each sector through hole. 5.The indoor unit of claim 3, wherein, The two air inlets of the double-suction fan are communicated with the first through hole and the second through hole, the volute cover assembly and the volute assembly are provided with an air outlet channel on the side of the double-suction fan away from the third through hole, and the air outlet of the double-suction fan is communicated with the third through hole and the air outlet channel. 6.The indoor unit of claim 5, wherein, The volute cover assembly is provided with a fourth through hole on the side of the double-suction fan away from the third through hole, the volute assembly is provided with a fifth through hole on the side of the double-suction fan away from the third through hole, the side of the fifth through hole away from the fourth through hole is connected with the fresh air inlet, the side wall of the volute cover assembly away from the volute assembly is rotatably provided with a second baffle, and the side wall of the volute assembly away from the volute cover assembly is rotatably provided with a third baffle. The fifth through hole has a first state in which the fourth through hole is communicated, and a second state in which the fifth through hole is blocked by the third baffle and the fourth through hole is blocked by the second baffle. 7.The indoor unit of the air conditioner according to claim 1, characterized by, The air conditioner indoor unit comprises a secondary fan, the volute is provided with a sixth through hole communicated with the side of the volute facing the evaporator, the volute is provided with a third air outlet, and the secondary fan is arranged in the volute, and the air inlet and the air outlet of the secondary fan are communicated with the sixth through hole and the third air outlet respectively.

8. An air conditioner characterized by comprising: The air conditioner comprises the air conditioner indoor unit according to any one of claims 1-7.

9. A control method for an air conditioner as defined in claim 8, characterized by, The control method comprises: acquiring a working mode of the air conditioner; when the air conditioner is in a heat exchange fresh air mode, controlling the partition to close the first air duct section and the second air duct section; starting the double-suction air fan.

10. The control method according to claim 9, characterized by When the air conditioner indoor unit comprises a fourth through hole, a fifth through hole, a second baffle, a third baffle, a volute cover assembly, a damper assembly, a first through hole and a volute assembly, and the air conditioner is in a heat exchange fresh air mode, before starting the double-suction air fan, the method further comprises: controlling the damper assembly to open the first through hole; controlling the free end of the second baffle to abut against the volute assembly, and controlling the free end of the third baffle to abut against the volute cover assembly.

11. The control method according to claim 9, characterized by, When the air conditioner indoor unit comprises a damper assembly, a first through hole and a first baffle, and the air conditioner is in a drying mode, controlling the partition to open the first air duct section and the second air duct section; controlling the damper assembly to close the first through hole; controlling the first baffle to close the first air outlet; starting the double-suction air fan.

12. The control method according to claim 11, characterized by, When the air conditioner indoor unit comprises a fourth through hole, a fifth through hole, a second baffle, a third baffle, a volute cover assembly and a volute assembly, and the air conditioner is in a drying mode, before starting the double-suction air fan, the method further comprises: controlling the free end of the second baffle to abut against the volute assembly, and controlling the free end of the third baffle to abut against the volute cover assembly.

13. The control method according to claim 9, characterized by, When the air conditioner is in a heat exchange mode, and the air conditioner indoor unit comprises a first baffle, a first through hole and a damper assembly; controlling the partition to close the first air duct section and the second air duct section; controlling the first baffle to open the first air outlet; controlling the damper assembly to close the first through hole; starting the double-suction air fan.

14. The control method according to claim 13, characterized by, When the air conditioner indoor unit comprises a fourth through hole, a fifth through hole, a second baffle and a third baffle, and the air conditioner is in a heat exchange mode, before starting the double-suction air fan, the method further comprises: controlling the second baffle to block the fourth through hole, and controlling the third baffle to block the fifth through hole.

15. The control method according to claim 9, characterized by, When the air conditioner is in a heat exchange mode, and the air conditioner indoor unit comprises a secondary air fan, starting the secondary air fan.

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