Vertical air conditioner indoor unit

Abstract

The utility model provides a vertical air conditioner indoor unit. The vertical air conditioner indoor unit comprises a shell, a main fan and an auxiliary fan. The shell is vertically arranged, and a main air duct and an auxiliary air duct are arranged in the shell. An outlet of the main air channel is formed in the front side of the shell. An inlet of the auxiliary air duct is formed in the side wall of the shell, and an outlet of the auxiliary air duct is formed in the air duct wall of the main air duct. The main fan is arranged in the main air duct, the main air duct comprises an air outlet section located on the air outlet side of the main fan, and the auxiliary air duct is located on one side of the air outlet section. And the auxiliary fan is arranged in the auxiliary air duct. According to the air conditioner, the auxiliary air duct and the auxiliary fan which are used for introducing indoor air are arranged on one side of the air outlet section of the main air duct, and a free area on one side of the air outlet section in the shell is occupied, so that the internal space of the shell is reasonably utilized, and waste of the internal space of the shell is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air treatment, in particular to a vertical air-conditioning indoor unit. Background Art

[0002] Air conditioners are indispensable electrical equipment in people's work, production and daily life. Air conditioners include outdoor units and indoor units. For the indoor unit of a vertical air conditioner, there is a main air duct inside its shell, and a fan is installed in the main air duct. The fan sends the heat exchange air to the outlet section of the main air duct, and then blows it into the room along the outlet section. However, the area on one side of the outlet section inside the shell is generally not equipped with other components, resulting in the idleness of this section, resulting in a waste of space inside the shell. Utility Model Content

[0003] In view of the above problems, the present utility model is proposed to provide a vertical air-conditioning indoor unit that overcomes the above problems or at least partially solves the above problems, which can solve the problem of idle area on one side of the air outlet section inside the shell, thereby achieving the effect of rationally utilizing the internal space of the shell.

[0004] Specifically, the utility model provides a vertical air-conditioning indoor unit, comprising:

[0005] A shell, the shell is vertically arranged, and has a main air duct and an auxiliary air duct in the shell; the outlet of the main air duct is arranged on the front side of the shell; the inlet of the auxiliary air duct is arranged on the side wall of the shell, and the outlet of the auxiliary air duct is arranged on the air duct wall of the main air duct;

[0006] a main air fan, disposed in the main air duct, the main air duct comprising an air outlet section located at an air outlet side of the main air fan, the auxiliary air duct being located at one side of the air outlet section; and

[0007] The auxiliary fan is arranged in the auxiliary air duct.

[0008] Optionally, the main fan is a crossflow fan, the crossflow fan is vertically arranged, and the air duct wall of the main air duct includes a first volute profile;

[0009] The outlet of the auxiliary air duct is arranged on the first volute profile.

[0010] Optionally, the auxiliary fan is a cross-flow fan, the auxiliary fan is vertically arranged, and the air duct wall of the auxiliary air duct includes a second volute profile;

[0011] The edge of the second volute profile connected to the first volute profile is the rear edge of the outlet of the auxiliary air duct.

[0012] Optionally, the vertical air conditioner indoor unit further includes:

[0013] The baffle is movably disposed in the shell and is configured to: close the outlet of the auxiliary air duct; or, disconnect the main air duct and open the outlet of the auxiliary air duct so that only the auxiliary air duct is connected to the outlet of the main air duct; or, open the outlet of the auxiliary air duct so that the inlets of the auxiliary air duct and the main air duct are both connected to the outlet of the main air duct.

[0014] Optionally, the baffle is rotatably disposed in the main air duct around a rear edge of the outlet of the auxiliary air duct.

[0015] Optionally, when the baffle disconnects the main air duct, an edge of the baffle away from the outlet of the auxiliary air duct is located obliquely in front of a rear edge of the outlet of the auxiliary air duct;

[0016] The front edge of the outlet of the auxiliary air duct is located obliquely in front of the rear edge of the outlet of the auxiliary air duct.

[0017] Optionally, an air purification device is provided at the inlet of the auxiliary air duct, and the air purification device is a filter.

[0018] Optionally, the extended surface of the second volute profile extends obliquely forward from the rear edge of the outlet of the auxiliary air duct;

[0019] The air duct wall of the auxiliary air duct includes a volute tongue profile arranged opposite to the second volute profile;

[0020] The extended surface of the volute tongue profile extends obliquely forward from the front edge of the outlet of the auxiliary air duct.

[0021] Optionally, the inlet of the auxiliary air duct is arranged on the front half of the side wall of the shell;

[0022] The inlet of the auxiliary air duct is arranged on the front half of the space inside the shell.

[0023] Optionally, a heat exchanger is provided at the inlet of the main air duct;

[0024] The outlet of the main air duct, the outlet of the auxiliary air duct and the inlet of the auxiliary air duct are all in the shape of long strips and extend in the vertical direction.

[0025] In the vertical air conditioner indoor unit of the utility model, since an auxiliary air duct and an auxiliary fan for introducing indoor air are provided on one side of the air outlet section of the main air duct, the vacant area on one side of the air outlet section in the shell is occupied, so that the internal space of the shell is reasonably utilized and the waste of the internal space of the shell is avoided.

[0026] 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

[0027] 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:

[0028] Figure 1 It is a schematic partial structural diagram of a vertical air conditioner indoor unit according to an embodiment of the utility model;

[0029] Figure 2 is a schematic partial structural diagram of a vertical air conditioner indoor unit according to another embodiment of the utility model;

[0030] Figure 3 is a schematic partial structural diagram of a vertical air conditioner indoor unit according to another embodiment of the utility model;

[0031] Figure 4 is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the utility model;

[0032] Figure 5 It is a schematic structural diagram of a vertical air conditioner indoor unit according to another embodiment of the utility model. DETAILED DESCRIPTION

[0033] Refer to the following Figures 1 to 5 To describe the vertical air conditioner indoor unit of an embodiment of the 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 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Figure 1 FIG. 1 is a schematic partial structural diagram of a vertical air conditioner indoor unit 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 a vertical air conditioner indoor unit, including a housing 110, a main fan 133 and an auxiliary fan 144. The housing 110 is vertically arranged, and a main air duct and an auxiliary air duct 140 are provided in the housing 110. The outlet 134 of the main air duct is arranged at the front side of the housing 110. The inlet 141 of the auxiliary air duct 140 is arranged on the side wall of the housing 110, and the outlet 142 of the auxiliary air duct 140 is arranged on the air duct wall of the main air duct. The main fan 133 is arranged in the main air duct, and the main air duct includes an air outlet section 132 on the air outlet side of the main fan 133, and the auxiliary air duct 140 is on one side of the air outlet section 132. The auxiliary fan 144 is arranged in the auxiliary air duct 140.

[0038] In the vertical air conditioner indoor unit 100 of the embodiment of the utility model, the vertical air conditioner indoor unit 100 is arranged indoors. When the vertical air conditioner indoor unit 100 is turned on, the main fan 133 and the auxiliary fan 144 are turned on at the same time, and the main fan 133 supplies air to the air outlet section 132 of the main air duct. The auxiliary fan 144 is in the auxiliary air duct 140. The auxiliary fan 144 allows indoor air to enter the auxiliary air duct 140 from the inlet 141 of the auxiliary air duct 140, and then enter the air outlet section 132 of the main air duct from the outlet 142 of the auxiliary air duct 140. Then, after the wind generated by the main fan 133 in the air outlet section 132 is mixed, it is transported to the front area of ​​the housing 110, that is, the indoor area, from the outlet 134 of the main air duct. Since an auxiliary air duct 140 and an auxiliary fan 144 for introducing indoor air are provided on one side of the air outlet section 132 of the main air duct, the vacant area on one side of the air outlet section 132 in the shell 110 is occupied, so that the internal space of the shell 110 is reasonably utilized and the waste of the internal space of the shell 110 is avoided.

[0039] Further, the main fan 133 blows out heat exchange air to the air outlet section 132 of the main air duct. As can be seen from the above, the auxiliary air duct 140 delivers indoor air to the air outlet section 132 of the main air duct. Then, the heat exchange air and the indoor air are mixed in the air outlet section 132 to form mixed air, and then blown out from the outlet 134 of the main air duct. Since the air blown out from the vertical air conditioner indoor unit 100 is a mixed air of heat exchange air and indoor air, when the vertical air conditioner indoor unit 100 is in cooling mode, the indoor air is mixed with strong cold air, so that the mixed air blown out of the vertical air conditioner indoor unit 100 is cool but not cold. When the vertical air conditioner indoor unit 100 is in heating mode, the indoor air is mixed with relatively strong warm air, so that the mixed air blown out of the vertical air conditioner indoor unit 100 is warm but not dry, thereby improving the user experience.

[0040] In some embodiments of the present invention, Figures 1 to 3 As shown, the main fan 133 is a cross-flow fan, which is arranged vertically, and the air duct wall of the main air duct includes a first volute profile 131. The outlet 142 of the auxiliary air duct 140 is arranged on the first volute profile 131.

[0041] In this embodiment, when the vertical air conditioner indoor unit 100 is turned on, the wind generated by the main fan 133 flows forward along the first volute profile 131. The indoor air introduced by the auxiliary fan 144 enters the air outlet section 132 of the main air duct through the outlet 142 of the auxiliary air duct 140, and reaches one side of the first volute profile 131. Since the outlet 142 of the auxiliary air duct 140 is arranged on the first volute profile 131, that is, the air outlet of the main fan 133 is mainly concentrated on one side of the first volute profile 131, this arrangement is conducive to the wind brought by the main fan 133 and the wind brought by the auxiliary fan 144 to converge on the same side of the air outlet section 132. It is more conducive to the mixing of wind, making the wind mixing more uniform, and further making the temperature of the wind blown out of the vertical air conditioner indoor unit 100 uniform, thereby improving the user experience.

[0042] In some embodiments of the present invention, Figures 1 to 3 As shown, the auxiliary fan 144 is a cross-flow fan, the auxiliary fan 144 is vertically arranged, and the duct wall of the auxiliary duct 140 includes a second volute profile 145. The edge of the second volute profile 145 connected to the first volute profile 131 is the rear edge of the outlet 142 of the auxiliary duct 140.

[0043] In this embodiment, the indoor air introduced by the auxiliary fan 144 enters the air outlet area of ​​the main air duct from the rear edge of the outlet 142 of the auxiliary air duct 140 along the second volute profile 145. Since the edge of the second volute profile 145 connected to the first volute profile 131 is the rear edge of the outlet 142 of the auxiliary air duct 140, it is conducive to the smooth entry of the indoor air into the air outlet section 132 of the main air duct. In addition, the air outlet direction of the auxiliary air duct 140 is consistent with the air outlet direction of the air outlet section 132, which is more conducive to the air outlet of the vertical air conditioner indoor unit 100.

[0044] In some embodiments of the present invention, Figure 2 As shown, the vertical air conditioner indoor unit 100 further includes a baffle 150 , which is movably disposed in the housing 110 and configured to close the outlet 142 of the auxiliary air duct 140 .

[0045] As can be seen from the above embodiment, the auxiliary air duct 140 blows indoor air to the air outlet section 132 of the main air duct. In this embodiment, the baffle 150 is rotated to close the outlet 142 of the auxiliary air duct 140, so that the indoor air cannot enter the air outlet section 132 of the main air duct. At this time, the air outlet section 132 of the main air duct only blows out heat exchange air. In this way, the vertical air conditioner indoor unit 100 meets the user's needs for rapid cooling or heating, and improves the user's experience.

[0046] In other embodiments of the present invention, Figure 3As shown, the baffle 150 is configured to disconnect the main air duct and open the outlet 142 of the auxiliary air duct 140 so as to allow only the auxiliary air duct 140 to communicate with the outlet 134 of the main air duct.

[0047] As can be seen from the above embodiment, the auxiliary air duct 140 blows out indoor air to the air outlet section 132 of the main air duct. In this embodiment, the baffle 150 is rotated to disconnect the main air duct, and the heat exchange air cannot enter the air outlet section 132 of the main air duct. The auxiliary air duct 140 is connected to the outlet 134 of the main air duct, and the indoor air in the auxiliary air duct 140 is blown into the room through the outlet 134 of the main air duct. At this time, the main air duct only blows out indoor air, which is conducive to indoor air circulation.

[0048] In other embodiments of the present invention, Figure 1 As shown, the baffle 150 is further configured to open the outlet 142 of the auxiliary air duct 140 so that the inlets of the auxiliary air duct 140 and the main air duct are both connected to the outlet 134 of the main air duct.

[0049] As can be seen from the above embodiment, the auxiliary air duct 140 blows out indoor air to the air outlet section 132 of the main air duct. In this embodiment, the baffle 150 is rotated so that the inlets of the auxiliary air duct 140 and the main air duct are both connected to the outlet 134 of the main air duct. When the indoor unit 100 of the vertical air conditioner is turned on, the air outlet section 132 of the main air duct contains indoor air brought by the auxiliary fan 144 and heat exchange air brought by the main fan 133, which are mixed in the air outlet section 132 of the main air duct and blown out from the outlet 134 of the main air duct. In other words, the air blown out of the main air duct at this time is a mixed air after the indoor air and the heat exchange air are mixed, which avoids the heat exchange air from being too hot or too cold, and improves the comfort.

[0050] In some embodiments of the present invention, Figures 1 to 3 As shown, the baffle 150 is rotatably disposed in the main air duct around the rear edge of the outlet 142 of the auxiliary air duct 140 .

[0051] In this embodiment, when the air outlet mode of the main air duct is switched, the baffle 150 is rotated so that the baffle 150 rotates around the rear edge of the outlet 142 of the auxiliary air duct 140. Since the baffle 150 is rotatably arranged with the rear edge of the outlet 142 of the auxiliary air duct 140, there are more areas in the main air duct for mixing indoor air and heat exchange air, which is convenient for mixing indoor air and mixed hot air. Moreover, the baffle 150 rotates around the rear edge of the outlet 142 of the auxiliary air duct 140, so that the airflow direction of the indoor air entering from the outlet 142 of the auxiliary air duct 140 is roughly consistent with the airflow direction of the heat exchange air entering from the inlet of the main air duct, which is conducive to the mixing and flow of airflow.

[0052] In some embodiments of the present invention, Figures 1 to 3As shown, when the baffle 150 disconnects the main air duct, the edge of the baffle 150 away from the outlet 142 of the auxiliary air duct 140 is located obliquely in front of the rear edge of the outlet 142 of the auxiliary air duct 140. The front edge of the outlet 142 of the auxiliary air duct 140 is located obliquely in front of the rear edge of the outlet 142 of the auxiliary air duct 140.

[0053] In this embodiment, when the baffle 150 disconnects the main air duct, that is, when the outlet 134 of the main air duct blows out only the indoor air, the edge of the baffle 150 away from the outlet 142 of the auxiliary air duct 140 is located obliquely in front of the rear edge of the outlet 142 of the auxiliary air duct 140. At this time, the baffle 150 cooperates with the second volute profile 145, which is more conducive to the indoor air in the auxiliary air duct 140 entering the main air duct. Since the front edge of the outlet 142 of the auxiliary air duct 140 is located obliquely in front of the rear edge of the outlet 142 of the auxiliary air duct 140, that is, the outlet 142 of the auxiliary air duct 140 is arranged obliquely, such an arrangement is consistent with the shape of the first volute profile 131, which is more conducive to air outlet.

[0054] In some embodiments of the present invention, Figures 1 to 3 As shown, an air purification device is provided at the inlet 141 of the auxiliary air duct 140 .

[0055] As can be seen from the above embodiment, the indoor air enters the auxiliary air duct 140 from the inlet 141 of the auxiliary air duct 140, then enters the air outlet section 132 from the outlet 142 of the auxiliary air duct 140, and then blows out into the room. In this embodiment, the indoor air passes through the air purification device at the inlet 141 of the auxiliary air duct 140, and then enters the auxiliary air duct 140. To ensure the purity of the air entering the auxiliary air duct 140, the purity of the air blown into the room by the vertical air conditioner indoor unit 100 is further guaranteed, and the physical and mental health of the user is guaranteed.

[0056] In some embodiments of the present invention, Figures 1 to 3 As shown, the air purification device is a filter 160. That is, the indoor air enters the auxiliary air duct 140 after passing through the filter 160.

[0057] In some embodiments of the present invention, Figures 1 to 3 As shown, the extension surface of the second volute profile 145 extends obliquely forward from the rear edge of the outlet 142 of the auxiliary air duct 140. The air duct wall of the auxiliary air duct 140 includes a volute tongue profile 143 arranged opposite to the second volute profile 145. The extension surface of the volute tongue profile 143 extends obliquely forward from the front edge of the outlet 142 of the auxiliary air duct 140.

[0058] In this embodiment, the extended surface of the second volute profile 145 and the extended surface of the volute tongue profile 143 have the same inclination direction, which can better guide the wind in the mixed flow air duct.

[0059] In some embodiments of the present invention, Figures 1 to 3 As shown, the inlet 141 of the auxiliary air duct 140 is disposed on the front half of the side wall of the housing 110. The inlet 141 of the auxiliary air duct 140 is disposed on the front half of the space inside the housing 110.

[0060] It can be seen from the above embodiments that Figure 4 and Figure 5 As shown, the outlet 134 of the main air duct is arranged on the front side of the shell 110, and the front side of the shell 110 is aligned with the vast area of ​​the indoor space. In this embodiment, the inlet 141 of the auxiliary air duct 140 is arranged on the front half of the side wall of the shell 110, that is, the inlet 141 of the auxiliary air duct 140 is close to the vast area of ​​the indoor space, which is conducive to the indoor air entering the auxiliary air duct 140 through the inlet 141 of the auxiliary air duct 140. In addition, the main fan 133 is arranged in the rear half of the space of the shell 110, and the main air duct extends from the back to the front in the space of the shell 110. Since the inlet 141 of the auxiliary air duct 140 is arranged on the front half of the space in the shell 110, it is just in the vacant position of the indoor space. It will not occupy the space of the main air duct, and it is also convenient for the auxiliary air duct 140 to be connected with the air outlet section 132 of the main air duct, so that the space layout in the shell 110 is very reasonable.

[0061] In some embodiments of the present invention, Figures 1 to 3 As shown, a heat exchanger 120 is provided at the inlet of the main air duct.

[0062] It can be seen from the above embodiments that the wind blown out of the auxiliary air duct 140 is indoor air, and the auxiliary air duct 140 supplies air to the air supply section of the main air duct. In this embodiment, when the main fan 133 arranged in the main air duct is started, it blows the heat exchange air to the air supply section of the main air duct, that is, the main fan 133 blows out the heat exchange air. The heat exchange air blown out by the main fan 133 and the indoor air blown out by the auxiliary fan 144 are collected in the air outlet section 132, and mixed in the air outlet section 132 to form a mixed wind after the heat exchange air and the indoor air are mixed, and then blown out from the outlet 134 of the main air duct to the room. The indoor air can neutralize the relatively strong heat exchange air, so that the wind blown out by the indoor unit 100 of the vertical air conditioner is relatively soft, avoiding the discomfort caused by the strong heat exchange air blowing directly on the human body in the prior art. This embodiment improves the user experience and improves the market competitiveness.

[0063] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the outlet 134 of the main air duct, the outlet 142 of the auxiliary air duct 140 and the inlet 141 of the auxiliary air duct 140 are all in the shape of long strips and extend in the vertical direction.

[0064] In this embodiment, the shape of the inlet 141 of the auxiliary air duct 140 can inhale more indoor air, and the shapes of the outlet 134 of the main air duct and the outlet 142 of the auxiliary air duct 140 make the air outlet range larger, further enhancing the air outlet efficiency.

[0065] In some embodiments of the present invention, Figures 1 to 3 As shown, the vertical air conditioner indoor unit 100 further includes an air guide plate 170 . The air guide plate 170 is rotatably disposed at the outlet 134 of the main air duct around a vertical axis, and is configured to force the air flow to flow away from the inlet 141 of the auxiliary air duct 140 .

[0066] In this embodiment, when the vertical air conditioner indoor unit 100 is working, the indoor air enters the auxiliary air duct 140 through the inlet 141 of the auxiliary air duct 140, then enters the main air duct from the outlet 142 of the auxiliary air duct 140, mixes with the heat exchange air in the main air duct, finally reaches the outlet 134 of the main air duct, and then blows out into the room through the air guide plate 170. Since the air guide plate 170 is rotatable, that is, the air guide plate 170 can guide air in multiple directions, thereby expanding the air outlet range of the vertical air conditioner indoor unit 100.

[0067] Furthermore, since the air guide plate 170 is configured to promote the airflow to flow in a direction away from the inlet 141 of the auxiliary air duct 140, that is, the wind blown out from the main air duct is away from the inlet of the main air duct and will not be immediately sucked into the inlet of the main air duct, thereby ensuring the heat exchange efficiency of the vertical air conditioner indoor unit 100.

[0068] 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. A vertical air conditioner indoor unit, characterized in that: include: A shell, the shell is vertically arranged, and has a main air duct and an auxiliary air duct in the shell; the outlet of the main air duct is arranged on the front side of the shell; the inlet of the auxiliary air duct is arranged on the side wall of the shell, and the outlet of the auxiliary air duct is arranged on the air duct wall of the main air duct; A main fan is arranged in the main air duct, the main air duct includes an air outlet section located at an air outlet side of the main fan, and the auxiliary air duct is located at one side of the air outlet section; and The auxiliary fan is arranged in the auxiliary air duct.

2. The vertical air conditioner indoor unit according to claim 1, characterized in that: The main fan is a crossflow fan, which is vertically arranged, and the air duct wall of the main air duct includes a first volute profile; The outlet of the auxiliary air duct is arranged on the first volute profile.

3. The vertical air conditioner indoor unit according to claim 2, characterized in that: The auxiliary fan is a cross-flow fan, the auxiliary fan is vertically arranged, and the air duct wall of the auxiliary air 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 auxiliary air duct.

4. The vertical air conditioner indoor unit according to claim 1, characterized in that: Also includes: The baffle is movably disposed in the shell and is configured to: close the outlet of the auxiliary air duct; or, disconnect the main air duct and open the outlet of the auxiliary air duct so that only the auxiliary air duct is connected to the outlet of the main air duct; or, open the outlet of the auxiliary air duct so that the inlets of the auxiliary air duct and the main air duct are both connected to the outlet of the main air duct.

5. The vertical air conditioner indoor unit according to claim 4, characterized in that: The baffle is rotatably arranged in the main air duct around the rear edge of the outlet of the auxiliary air duct.

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

7. The vertical air conditioner indoor unit according to claim 1, characterized in that: An air purification device is arranged at the inlet of the auxiliary air duct, and the air purification device is a filter.

8. The vertical air conditioner indoor unit according to claim 3, characterized in that: The extension surface of the second volute profile extends obliquely forward from the rear edge of the outlet of the auxiliary air duct; The air duct wall of the auxiliary air duct includes a volute tongue profile arranged opposite to the second volute profile; The extended surface of the volute tongue profile extends obliquely forward from the front edge of the outlet of the auxiliary air duct.

9. The vertical air conditioner indoor unit according to claim 1, characterized in that: The inlet of the auxiliary air duct is arranged on the front half of the side wall of the shell; The inlet of the auxiliary air duct is arranged on the front half of the space inside the shell.

10. The vertical air conditioner indoor unit according to claim 1, characterized in that: A heat exchanger is provided at the inlet of the main air duct; The outlet of the main air duct, the outlet of the auxiliary air duct and the inlet of the auxiliary air duct are all in the shape of long strips and extend in the vertical direction.

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