Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner. The indoor unit of the air conditioner comprises a shell, a first fan and a mixed flow fan. A first air duct and a mixed air duct are arranged in the shell; an inlet of the mixed air duct is formed in the front wall of the shell, and an outlet of the mixed air duct is formed in the air duct wall of the first air duct. The first fan is arranged in the shell and is configured to promote airflow to flow in from the inlet of the first air duct and flow out from the outlet of the first air duct. And the mixed flow fan is arranged in the mixed air duct and is configured to promote air flow to flow in from the inlet of the mixed air duct and flow out from the outlet of the first air duct. Due to the fact that the air blown out of the indoor unit of the air conditioner is the mixed air obtained by mixing the indoor air and the heat exchange air, when the indoor unit of the air conditioner is in the refrigeration mode, the indoor air is mixed with the strong cold air, and the mixed air blown out of the indoor unit of the air conditioner can be cool but not cold. In the heating mode, indoor air is mixed with strong warm air, so that mixed air blown out by the indoor unit of the air conditioner is warm but not dry, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing, in particular to an indoor unit of an air conditioner. Background Art

[0002] Air conditioners are indispensable electrical appliances in people's work, production and daily life. Air conditioners include outdoor units and indoor units. The indoor units and outdoor units work together to blow out cold or warm air to adjust the indoor temperature. However, in traditional air conditioners, when the air conditioner is cooling or heating, the cold or warm air blown out by the indoor unit is relatively strong, and the strong cold or warm air blows directly to the user, which will give the user a poor user experience. Utility Model Content

[0003] In view of the above-mentioned problems, the utility model is proposed to provide an air conditioner indoor unit that overcomes the above-mentioned problems or at least partially solves the above-mentioned problems, and can solve the problem of strong cold wind or warm wind from the indoor unit blowing directly on people, mix the indoor wind and the heat exchange wind generated by the indoor unit, improve the comfort of the wind blown out by the indoor unit, and enhance the user experience.

[0004] Specifically, the utility model provides an air conditioner indoor unit, comprising:

[0005] A housing, wherein the housing has a first air duct and an air mixing duct; the inlet of the air mixing duct is arranged on the front wall of the housing, and the outlet of the air mixing duct is arranged on the air duct wall of the first air duct;

[0006] a first fan disposed in the housing and configured to cause airflow to flow into the first air duct from an inlet and flow out from an outlet of the first air duct; and

[0007] The mixed flow fan is disposed in the air mixing duct and configured to cause air flow to flow into the inlet of the air mixing duct and flow out of the outlet of the first air duct.

[0008] Optionally, the shell further comprises a first air duct and a second air duct, the first air duct and the second air duct are arranged in sequence along the width direction of the shell, the outlet of the mixed air duct is arranged on the side wall of the first air duct facing the second air duct, and the inlet of the mixed air duct is arranged between the first air duct and the second air duct; the mixed air duct is arranged between the first air duct and the second air duct.

[0009] Optionally, the mixed flow fan is a cross flow fan, and the mixed flow fan extends along the length direction of the shell.

[0010] Optionally, the first fan is a cross-flow fan, which is arranged in the first air duct, the cross-flow fan extends along the length direction of the shell, and the air duct wall of the first air duct facing the second air duct is a first volute profile; the outlet of the air mixing duct is arranged on the first volute profile;

[0011] The air duct wall of the air mixing duct includes a second volute profile; the edge of the second volute profile connected to the first volute profile is the rear edge of the outlet of the air mixing duct;

[0012] The extension surface of the second volute profile extends obliquely forward from the rear edge of the outlet of the air mixing duct; the duct wall of the air mixing duct includes a volute tongue profile arranged opposite to the second volute profile; the extension surface of the volute tongue profile extends obliquely forward from the front edge of the outlet of the air mixing duct.

[0013] Optionally, the air conditioner indoor unit further includes:

[0014] A baffle, the baffle being movably disposed in the shell and configured to: close the outlet of the air mixing duct; or, disconnect the first air duct and open the outlet of the air mixing duct so that only the air mixing duct is connected to the outlet of the first air duct; or, open the outlet of the air mixing duct so that the inlet of the air mixing duct and the inlet of the first air duct are both connected to the outlet of the first air duct.

[0015] Optionally, the baffle is rotatably disposed in the first air duct around a rear edge of the outlet of the air mixing duct;

[0016] When the baffle plate disconnects the first air duct, the edge of the baffle plate away from the outlet of the air mixing duct is located obliquely in front of the rear edge of the outlet of the air mixing duct;

[0017] The front edge of the outlet of the air mixing duct is located obliquely in front of the rear edge of the outlet of the air mixing duct.

[0018] Optionally, the first fan is arranged vertically, and the baffle is a part of the duct wall of the first duct when closing the outlet of the air mixing duct;

[0019] A second fan is arranged in the second air duct, the second fan is a cross-flow fan, the second fan is arranged vertically, and the side wall of the second air duct facing the first air duct is a third volute profile surface matched with the second fan.

[0020] Optionally, in the direction from back to front, the distance between the first air duct and the second air duct first gradually increases and then remains unchanged; or,

[0021] Along the direction from back to front, the distance between the first air duct and the second air duct gradually increases.

[0022] Optionally, the air conditioner indoor unit further includes:

[0023] a first air guide plate rotatably disposed about a vertical axis at the outlet of the first air duct, the first air guide plate being configured to cause the airflow to flow in a direction away from the inlet of the air mixing duct; and / or,

[0024] The second air guide plate is rotatably arranged around a vertical axis at the outlet of the second air duct; the second air guide plate is configured to promote the airflow to flow in a direction away from the inlet of the air mixing duct.

[0025] Optionally, an air purification device is provided at the inlet of the air mixing duct, and the air purification device is a filter;

[0026] A heat exchanger is provided at the inlet of the first air duct and / or the second air duct;

[0027] The outlet of the first air duct, the outlet of the second air duct and the inlet of the air mixing duct are all in the shape of long strips and extend in the vertical direction.

[0028] In the air conditioner indoor unit of the utility model, since the air blown out by the air conditioner indoor unit is a mixed wind after the indoor air and the heat exchange wind are mixed, when the air conditioner indoor unit is in the cooling mode, the indoor air is mixed with the strong cold wind, so that the mixed wind blown out by the air conditioner indoor unit is cool but not cold. When the air conditioner indoor unit is in the heating mode, the indoor air is mixed with the relatively strong warm wind, so that the mixed wind blown out by the air conditioner indoor unit is warm but not dry, thereby improving the user experience.

[0029] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is a schematic partial structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0032] Figure 2 is a schematic partial structural diagram of an air conditioner indoor unit according to another embodiment of the utility model;

[0033] Figure 3is a schematic partial structural diagram of an air conditioner indoor unit according to another embodiment of the utility model;

[0034] Figure 4 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0035] Figure 5 It is a schematic structural diagram of an air conditioner indoor unit according to another embodiment of the utility model. DETAILED DESCRIPTION

[0036] Refer to the following Figures 1 to 5 To describe the air conditioner indoor unit of an embodiment of the present utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0037] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0038] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Figure 1 FIG. 1 is a schematic partial structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model. Figure 1 As shown, and refer to Figures 2 to 5 The embodiment of the utility model provides an indoor unit 100 of an air conditioner, comprising a housing 190, a first fan 111 and a mixed flow fan 121. The housing 190 has a first air duct 110 and a mixed air duct 120. The inlet 124 of the mixed air duct 120 is arranged on the front wall of the housing 190, and the outlet 125 of the mixed air duct 120 is arranged on the air duct wall of the first air duct 110. The first fan 111 is arranged in the housing 190, and is configured to promote airflow to flow into the inlet of the first air duct 110 and flow out from the outlet of the first air duct 110. The mixed flow fan 121 is arranged in the mixed air duct 120, and is configured to promote airflow to flow into the inlet 124 of the mixed air duct 120 and flow out from the outlet of the first air duct 110.

[0041] In the air conditioner indoor unit 100 of the embodiment of the utility model, the air conditioner indoor unit 100 is installed in the indoor area. When the air conditioner indoor unit 100 is working, the first fan 111 and the air mixing fan are started, and the first fan 111 blows the heat exchange air into the first air duct 110. The mixed flow fan 121 sucks the indoor air in the room into the air mixing duct 120 from the inlet 124 of the air mixing duct 120, and then enters the first air duct 110 from the outlet 125 of the air mixing duct 120, and mixes with the heat exchange air in the first air duct 110, and then blows out from the outlet of the first air duct 110. Since the air blown out of the air conditioner indoor unit 100 is the mixed air after the indoor air and the heat exchange air are mixed, when the air conditioner indoor unit 100 is in the cooling mode, the indoor air is mixed with the strong cold air, so that the mixed air blown out of the air conditioner indoor unit 100 is cool but not cold. When the air conditioner indoor unit 100 is in heating mode, the indoor air is mixed with stronger warm air, so that the mixed air blown out by the air conditioner indoor unit 100 is warm but not dry, thereby improving the user experience.

[0042] In some embodiments of the present invention, Figures 1 to 3As shown, the housing 190 further includes a first air duct 110 and a second air duct 130, which are sequentially arranged along the width direction of the housing 190. An outlet 125 of the air mixing duct 120 is arranged on the side wall of the first air duct 110 facing the second air duct 130, and an inlet 124 of the air mixing duct 120 is arranged between the first air duct 110 and the second air duct 130. The air mixing duct 120 is arranged between the first air duct 110 and the second air duct 130.

[0043] It can be seen from the above embodiment that the first air duct 110 is connected to the mixed air duct 120, and the air blown out by the first air duct 110 is the mixed air after the heat exchange air and the indoor air are mixed. In this embodiment, when the air conditioner indoor unit 100 is working, the first air duct 110 blows out the mixed air after the indoor air and the heat exchange air are mixed, and the second air duct 130 blows out the heat exchange air. The user can also open the first air duct 110 or the second air duct 130 separately according to their own specific needs, or the first air duct 110 and the second air duct 130 can be opened at the same time, so as to diversify the air outlet modes of the air conditioner indoor unit 100, meet the diverse needs of users, and improve market competitiveness.

[0044] Since the first air duct 110 and the second air duct 130 are sequentially arranged along the width direction of the housing 190, the inlet 124 of the air mixing duct 120 is arranged between the first air duct 110 and the second air duct 130, and the air mixing duct 120 is arranged between the first air duct 110 and the second air duct 130. The internal structure of the housing 190 of the air conditioner indoor unit 100 is made more compact, saving production costs.

[0045] Since the first air duct 110 and the second air duct 130 are sequentially arranged along the width direction of the housing 190, the inlet 124 of the air mixing duct 120 is arranged between the first air duct 110 and the second air duct 130, so that the outlet of the first air duct 110 is spaced from the outlet of the second air duct 130. In other words, the first air duct 110 and the second air duct 130 are respectively discharged in two different directions, thereby expanding the air outlet range of the air conditioner indoor unit 100 and enhancing the working efficiency of the air conditioner indoor unit 100.

[0046] In some embodiments of the present invention, Figures 1 to 3 As shown, the mixed flow fan 121 is a cross flow fan, and the mixed flow fan 121 extends along the length direction of the housing 190 .

[0047] In some embodiments of the present invention, Figures 1 to 3As shown, the first fan 111 is a cross-flow fan, which is arranged in the first air duct 110. The cross-flow fan extends along the length direction of the housing 190, and the air duct wall of the first air duct 110 facing the second air duct 130 is a first volute profile 112. The outlet 125 of the air mixing duct 120 is arranged on the first volute profile 112. The air duct wall of the air mixing duct 120 includes a second volute profile 122. The edge of the second volute profile 122 connected to the first volute profile 112 is the rear edge of the outlet 125 of the air mixing duct 120. The extended surface of the second volute profile 122 extends obliquely forward from the rear edge of the outlet 125 of the air mixing duct 120.

[0048] It can be seen from the above embodiments that the mixed flow fan 121 is a cross-flow fan. In this embodiment, when the indoor unit 100 of the air conditioner is working, the first fan 111 and the mixed flow fan 121 are turned on at the same time. The first fan 111 flows the heat exchange air forward along the first volute profile 112, and the mixed flow fan 121 flows the indoor air along the second volute profile 122 from the outlet 125 of the mixed air duct 120 on the first volute profile 112 into the first air duct 110, and then blows the indoor air from the first air duct 110 together. Since the edge of the second volute profile 122 connected to the first volute profile 112 is the rear edge of the outlet 125 of the mixed air duct 120, that is, the outlet 125 of the mixed air duct 120 is the flow area of ​​the heat exchange air, the indoor air and the heat exchange air can be well mixed, so that the temperature of the air blown out of the first air duct 110 is more uniform, and the comfort is improved.

[0049] In some embodiments of the present invention, Figures 1 to 3 As shown, the duct wall of the air mixing duct 120 includes a volute tongue profile 123 disposed opposite to the second volute profile 122. The extended surface of the volute tongue profile 123 extends obliquely forward from the front edge of the outlet 125 of the air mixing duct 120.

[0050] In this embodiment, the arrangement of the volute tongue profile 123 can better guide the wind in the mixed flow air duct, thereby ensuring the air outlet efficiency of the mixed air fan.

[0051] In some embodiments of the present invention, Figure 2 As shown, the air conditioner indoor unit 100 further includes a baffle 140 , which is movably disposed in the housing 190 and configured to close the outlet 125 of the air mixing duct 120 .

[0052] As can be seen from the above embodiments, the mixed air duct blows indoor air to the first air duct 110. In this embodiment, the baffle 140 is rotated to close the outlet 125 of the mixed air duct 120, so that the indoor air cannot enter the first air duct 110. At this time, only the heat exchange air is blown out of the first air duct 110. The air conditioner indoor unit 100 can meet the user's needs for rapid cooling or heating, thereby improving the user's experience.

[0053] In some embodiments of the present invention, Figure 3 As shown, the baffle 140 is further configured to disconnect the first air duct 110 and open the outlet 125 of the air mixing duct 120 so as to allow only the air mixing duct 120 to communicate with the outlet of the first air duct 110 .

[0054] As can be seen from the above embodiment, the mixed air duct blows out indoor air to the first air duct 110. In this embodiment, the baffle 140 is rotated to close the first air duct 110, and the heat exchange air cannot enter the first air duct 110. The mixed air duct 120 is connected to the outlet of the first air duct 110, and the indoor air in the mixed air duct 120 is blown into the room through the outlet of the first air duct 110. At this time, the first air duct 110 only blows out indoor air, so that the indoor air is circulated.

[0055] In some embodiments of the present invention, Figure 1 As shown, the baffle 140 is further configured to open the outlet 125 of the air mixing duct 120 so that the inlet 124 of the air mixing duct 120 and the inlet of the first air duct 110 are both connected to the outlet of the first air duct 110 .

[0056] As can be seen from the above embodiments, the mixed air duct blows out indoor air to the first air duct 110. In this embodiment, the baffle 140 is rotated so that the inlet 124 of the mixed air duct 120 and the inlet of the first air duct 110 are both connected to the outlet of the first air duct 110. When the indoor unit 100 of the air conditioner is turned on, the first air duct 110 contains indoor air brought by the mixed flow fan 121 and heat exchange air brought by the first fan 111, which are mixed in the first air duct 110 and blown out from the outlet of the first air duct 110. In other words, the air blown out of the first air duct 110 at this time is a mixed air after the indoor air and the heat exchange air are mixed, which avoids the heat exchange air being too strong and improves the comfort.

[0057] In some embodiments of the present invention, Figures 1 to 3 As shown, the baffle 140 is rotatably disposed in the first air duct 110 around the rear edge of the outlet 125 of the air mixing duct 120 .

[0058] In this embodiment, when the air outlet mode of the first air duct 110 is switched, the baffle 140 is rotated so that the baffle 140 rotates around the rear edge of the outlet 125 of the air mixing duct 120. Since the baffle 140 is rotatable and aligned with the rear edge of the outlet 125 of the air mixing duct 120, more areas in the first air duct 110 are provided for mixing indoor air and heat exchange air, which facilitates the mixing of indoor air and mixed hot air. Moreover, the first baffle 140 rotates around the rear edge of the outlet 125 of the air mixing duct 120, so that the airflow direction of the indoor air entering from the outlet 125 of the air mixing duct 120 is roughly consistent with the airflow direction of the heat exchange air entering from the inlet of the first air duct 110, which is conducive to the mixing and flow of airflow.

[0059] In some embodiments of the present invention, Figures 1 to 3 As shown, when the baffle 140 disconnects the first air duct 110, the edge of the baffle 140 away from the outlet 125 of the air mixing duct 120 is located obliquely in front of the rear edge of the outlet 125 of the air mixing duct 120. The front edge of the outlet 125 of the air mixing duct 120 is located obliquely in front of the rear edge of the outlet 125 of the air mixing duct 120.

[0060] In this embodiment, when the baffle 140 disconnects the first air duct 110, that is, when the outlet of the first air duct 110 blows out only the indoor air, the edge of the baffle 140 away from the outlet 125 of the air mixing duct 120 is located obliquely in front of the rear edge of the outlet 125 of the air mixing duct 120. At this time, the baffle 140 cooperates with the second volute profile 122, which is more conducive to the indoor air in the air mixing duct 120 entering the first air duct 110. Since the front edge of the outlet 125 of the air mixing duct 120 is located obliquely in front of the rear edge of the outlet 125 of the air mixing duct 120, that is, the outlet 125 of the air mixing duct 120 is arranged obliquely, such an arrangement is consistent with the shape of the first volute profile 112, which is more conducive to air outlet.

[0061] In some embodiments of the present invention, Figures 1 to 3 As shown, the first fan 111 is vertically arranged, and the baffle 140 is a part of the duct wall of the first duct 110 when closing the outlet 125 of the air mixing duct 120 .

[0062] It can be seen from the above embodiment that the air duct wall of the first air duct 110 facing the second air duct 130 is the first volute profile 112. The outlet 125 of the air mixing duct 120 is arranged on the first volute profile 112. In this embodiment, when the baffle 140 closes the outlet 125 of the air mixing duct 120, the baffle 140 is a part of the air duct wall of the first air duct 110. That is to say, when the baffle 140 closes the outlet 125 of the air mixing duct 120, the baffle 140 is a part of the first volute profile 112, so that the heat exchange air flows along the first volute profile 112.

[0063] In some embodiments of the present invention, Figures 1 to 3 As shown, a second fan 131 is disposed in the second air duct 130 . The second fan 131 is a cross-flow fan. The second fan 131 is vertically disposed. The side wall of the second air duct 130 facing the first air duct 110 is a third volute profile 132 that cooperates with the second fan 131 .

[0064] It can be seen from the above embodiment that the duct wall of the first duct 110 facing the second duct 130 is the first volute profile 112. In this embodiment, the side wall of the second duct 130 facing the first duct 110 is the third volute profile 132 matched with the second fan 131, and the second fan 131 flows the heat exchange air forward along the third volute profile 132. In other words, the air outlet side of the first duct 110 and the air outlet side of the second duct 130 are close to each other. When the first duct 110 blows out mixed air or indoor air and the second duct 130 blows out heat exchange air, it is beneficial for the two winds to mix at the front side of the air conditioner indoor unit 100, thereby improving the user's comfort.

[0065] In some embodiments of the present invention, Figures 1 to 3 As shown, along the direction from back to front, the distance between the first air duct 110 and the second air duct 130 first gradually increases and then remains unchanged.

[0066] It can be seen from the above embodiment that the side wall of the first air duct 110 facing the second air duct 130 is the first volute profile 112 matched with the first fan 111, and the side wall of the second air duct 130 facing the first air duct 110 is the second volute profile 122 matched with the second fan 131, that is, the first volute profile 112 and the second volute profile 122 are arranged adjacent to each other. And a mixed flow fan 121 is arranged between the first air duct 110 and the second air duct 130. In this embodiment, in the direction from back to front, the distance between the first air duct 110 and the second air duct 130 first gradually increases to avoid the installation space of the mixed flow fan 121, and after avoiding enough installation space, the distance between the first air duct 110 and the second air duct 130 remains unchanged.

[0067] In some alternative embodiments of the present embodiment, the distance between the first air duct 110 and the second air duct 130 gradually increases from the back to the front.

[0068] In some embodiments of the present invention, Figures 1 to 3 As shown, the air conditioner indoor unit 100 further includes a first air guide plate 160 . The first air guide plate 160 is rotatably disposed at the outlet of the first air duct 110 around a vertical axis, and is configured to force the airflow to flow away from the inlet 124 of the air mixing duct 120 .

[0069] In this embodiment, when the indoor unit 100 of the air conditioner is working, the indoor air enters the mixing air duct 120 through the inlet 124 of the mixing air duct 120, then enters the first air duct 110 from the outlet 125 of the mixing air duct 120, mixes with the heat exchange air in the first air duct 110, finally reaches the outlet of the first air duct 110, and then blows out into the room through the first air guide plate 160. Since the first air guide plate 160 is rotatable, that is, the first air guide plate 160 can guide air in multiple directions, thereby expanding the air outlet range of the indoor unit 100 of the air conditioner.

[0070] Furthermore, since the first air guide plate 160 is configured to encourage the airflow to flow in a direction away from the inlet 124 of the air mixing duct 120, that is, the wind blown out from the first air duct 110 is away from the inlet 124 of the air mixing duct 120 and will not be immediately sucked into the inlet 124 of the air mixing duct 120, thereby ensuring the heat exchange efficiency of the air conditioner indoor unit 100.

[0071] In some embodiments of the present invention, Figures 1 to 3 As shown, the air conditioner indoor unit 100 further includes a second air guide plate 170 rotatably disposed about a vertical axis at the outlet of the second air duct 130 . The second air guide plate 170 is configured to force the air flow to flow away from the inlet 124 of the air mixing duct 120 .

[0072] In this embodiment, when the air conditioner indoor unit 100 is working, the heat exchange air in the second air duct 130 is blown into the room through the second air guide plate 170. Since the second air guide plate 170 is rotatable, that is, the second air guide plate 170 can guide air in multiple directions, thereby expanding the air outlet range of the air conditioner indoor unit 100.

[0073] Furthermore, since the second air guide plate 170 is configured to encourage the airflow to flow in a direction away from the inlet 124 of the air mixing duct 120, that is, the wind blown out from the second air duct 130 is away from the inlet 124 of the air mixing duct 120 and will not be immediately sucked into the inlet 124 of the air mixing duct 120, thereby ensuring the heat exchange efficiency of the air conditioner indoor unit 100.

[0074] In some embodiments of the present invention, Figures 1 to 3 As shown, the air conditioner indoor unit 100 includes a first air guide plate 160 and a second air guide plate 170. Since the first air guide plate 160 and the second air guide plate 170 can guide air in multiple directions, the air outlet range of the air conditioner indoor unit 100 is further expanded, and the working efficiency of the air conditioner indoor unit 100 is enhanced.

[0075] In some embodiments of the present invention, Figures 1 to 3As shown, an air purification device is provided at the inlet 124 of the mixed air duct 120. In this embodiment, the indoor air enters the mixed air duct 120 from the inlet 124 of the mixed air duct 120 through the air purification device, and then enters the first air duct 110 from the outlet 125 of the mixed air duct 120, mixes with the heat exchange air in the first air duct 110, and finally reaches the outlet of the first air duct 110. Since the air purification device is provided at the inlet 124 of the mixed air duct 120, the indoor air entering the mixed air duct 120 is filtered, thereby ensuring the purity of the air blown out by the indoor unit 100 of the air conditioner, and protecting the health of the user.

[0076] In some embodiments of the present invention, Figures 1 to 3 As shown, the air purification device is a filter 150. Indoor air passes through the filter 150 and enters the air mixing duct 120.

[0077] In some embodiments of the present invention, Figures 1 to 3 As shown, a heat exchanger 180 is disposed at the inlet of the first air duct 110. The first fan 111 blows hot air to the first air duct 110.

[0078] In some embodiments of the present invention, Figures 1 to 3 As shown, a heat exchanger 180 is disposed at the inlet of the second air duct 130. The second fan 131 blows hot air to the second air duct 130.

[0079] Preferably, a heat exchanger 180 is disposed at the inlet of the first air duct 110 and the second air duct 130. The first fan 111 and the second fan 131 can work simultaneously to enhance the heat exchange efficiency of the indoor unit 100 of the air conditioner.

[0080] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the outlet of the first air duct 110, the outlet of the second air duct 130 and the inlet 124 of the air mixing duct 120 are all in the shape of long strips and extend in the vertical direction.

[0081] In this embodiment, the shape of the inlet 124 of the air mixing duct 120 can inhale more indoor air, and the shapes of the outlets of the first air duct 110 and the second air duct 130 can expand the air outlet range, further enhancing the air mixing effect.

[0082] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner indoor unit, characterized in that: include: A housing, wherein the housing has a first air duct, a second air duct and an air mixing duct; the inlet of the air mixing duct is arranged on the front wall of the housing, the inlet of the air mixing duct is arranged between the first air duct and the second air duct, and the outlet of the air mixing duct is arranged on the air duct wall of the first air duct; a first fan, disposed in the housing and configured to cause airflow to flow into the first air duct from an inlet and out of the first air duct from an outlet; and The mixed flow fan is disposed in the air mixing duct and configured to cause air flow to flow into the inlet of the air mixing duct and flow out of the outlet of the first air duct.

2. The air conditioner indoor unit according to claim 1, characterized in that: The first air duct and the second air duct are arranged in sequence along the width direction of the shell, and the outlet of the air mixing duct is arranged on the side wall of the first air duct facing the second air duct; the air mixing duct is arranged between the first air duct and the second air duct.

3. The air conditioner indoor unit according to claim 1 or 2, characterized in that: The mixed flow fan is a cross flow fan, and the mixed flow fan extends along the length direction of the shell.

4. The air conditioner indoor unit according to claim 3, characterized in that: The first fan is a cross-flow fan, which is arranged in the first air duct. The cross-flow fan extends along the length direction of the housing. The air duct wall of the first air duct facing the second air duct is a first volute surface. The outlet of the air mixing duct is arranged on the first volute surface. The air duct wall of the air mixing duct includes a second volute profile; the edge of the second volute profile connected to the first volute profile is the rear edge of the outlet of the air mixing duct; The extension surface of the second volute profile extends obliquely forward from the rear edge of the outlet of the air mixing duct; the duct wall of the air mixing duct includes a volute tongue profile arranged opposite to the second volute profile; the extension surface of the volute tongue profile extends obliquely forward from the front edge of the outlet of the air mixing duct.

5. The air conditioner indoor unit according to claim 1 or 2, characterized in that: Also includes: A baffle, the baffle being movably disposed in the shell and configured to: close the outlet of the air mixing duct; or, disconnect the first air duct and open the outlet of the air mixing duct so that only the air mixing duct is connected to the outlet of the first air duct; or, open the outlet of the air mixing duct so that the inlet of the air mixing duct and the inlet of the first air duct are both connected to the outlet of the first air duct.

6. The air conditioner indoor unit according to claim 5, characterized in that: The baffle is rotatably arranged in the first air duct around the rear edge of the outlet of the air mixing duct; When the baffle plate disconnects the first air duct, the edge of the baffle plate away from the outlet of the air mixing duct is located obliquely in front of the rear edge of the outlet of the air mixing duct; The front edge of the outlet of the air mixing duct is located obliquely in front of the rear edge of the outlet of the air mixing duct.

7. The air conditioner indoor unit according to claim 5, characterized in that: The first fan is arranged vertically, and the baffle is a part of the duct wall of the first duct when closing the outlet of the air mixing duct; A second fan is arranged in the second air duct, the second fan is a cross-flow fan, the second fan is arranged vertically, and the side wall of the second air duct facing the first air duct is a third volute profile surface matched with the second fan.

8. The air conditioner indoor unit according to claim 2, characterized in that: From the back to the front, the distance between the first air duct and the second air duct first gradually increases and then remains unchanged; or, Along the direction from back to front, the distance between the first air duct and the second air duct gradually increases.

9. The indoor unit of the air conditioner according to claim 2, characterized in that: Also includes: a first air guide plate rotatably disposed about a vertical axis at the outlet of the first air duct, the first air guide plate being configured to cause the airflow to flow in a direction away from the inlet of the air mixing duct; and / or, The second air guide plate is rotatably arranged around a vertical axis at the outlet of the second air duct; the second air guide plate is configured to promote the airflow to flow in a direction away from the inlet of the air mixing duct.

10. The indoor unit of the air conditioner according to claim 2, characterized in that: An air purification device is provided at the inlet of the air mixing duct, and the air purification device is a filter screen; A heat exchanger is provided at the inlet of the first air duct and / or the second air duct; The outlet of the first air duct, the outlet of the second air duct and the inlet of the air mixing duct are all in the shape of long strips and extend in the vertical direction.

Images