Indoor unit of air pipe type air conditioner and air conditioner

By designing a cover device on the indoor unit of the air duct air conditioner to cover or expose micro-holes, the problem of dust entering the inner unit shell is solved, and the user experience and air quality of the air conditioner are improved.

CN222504048UActive Publication Date: 2025-02-18QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +3
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Patent Information

Application Number
CN202420162162.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-23
Publication Date
2025-02-18
Estimated Expiration
2034-01-23

AI Technical Summary

Technical Problem

The indoor units of existing air duct air conditioners have exposed micro-holes, causing dust to enter the housing of the inner unit, affecting the air quality and user experience.

Method used

A covering device is designed to cover micropores when the air duct air conditioner is turned off and expose micropores when opened, thereby preventing dust from entering the inner unit housing.

Benefits of technology

Effectively prevent dust from entering the inner unit housing, improve the user experience and air quality of the air conditioner, and solve the problem of dust blowing out.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heat pumps, and provides an indoor unit of an air pipe type air conditioner and the air conditioner. The indoor unit of the air duct type air conditioner comprises an indoor unit shell and a covering device, wherein the indoor unit shell is provided with at least one micropore for dispersing airflow; the covering device is connected with the inner unit shell and used for covering the micropores when the air pipe type air conditioner is in a closed state or exposing the micropores when the air pipe type air conditioner is in an opened state. When the air duct type air conditioner stops running, the covering device can cover the micropores, so that the inside and the outside of the inner unit shell cannot communicate through the micropores, dust outside the inner unit shell cannot enter the inner unit shell through the micropores, no dust exists in the inner unit shell, the dust cannot be blown out of the inner unit shell, and the service life of the air duct type air conditioner is prolonged. Therefore, the use experience of the air conditioner can be improved, and the technical problem that in the prior art, dust is blown out of the shell of the indoor unit, and consequently the air quality of the indoor environment is affected is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to an indoor unit of a duct type air conditioner and an air conditioner. Background Art

[0002] Air conditioners are household appliances commonly used in people's daily lives. Air conditioners may include an indoor unit and an outdoor unit. The indoor unit is installed indoors, and the outdoor unit is installed outdoors.

[0003] In the prior art, indoor units can be divided into vertical indoor units, wall-mounted indoor units and duct-type air conditioner indoor units according to the installation method. Among them, the indoor unit of the duct-type air conditioner may include an inner unit housing and an air guide plate (or breeze panel); the air outlet side (e.g., the front side) of the inner unit housing has an air guide plate setting opening; the air guide plate is arranged at the air guide plate setting opening, and the air guide plate is used to change the flow direction and angle of the air. The air guide plate has a plurality of micropores, through which the air can flow out of the inner unit housing to form a soft wind, thereby preventing the cold air flowing out of the inner unit housing from being too concentrated, and improving the comfortable air conditioning experience.

[0004] However, since the micropores are exposed regardless of whether the air conditioner is running or not, that is, the inside and outside of the inner unit shell are connected through the micropores, dust on the outside of the inner unit shell can easily enter the inside of the inner unit shell through the micropores, resulting in more dust stored inside the inner unit shell. When the indoor unit is running, the dust stored in the inner unit shell will be blown out, causing the air quality of the indoor environment to deteriorate, affecting the user experience of the air conditioner. Utility Model Content

[0005] The utility model provides an indoor unit of a duct type air conditioner and an air conditioner, which are used to solve the technical problem in the prior art that dust is blown out from an inner unit shell, thereby affecting the air quality of the indoor environment.

[0006] The utility model provides an indoor unit of a duct air conditioner, comprising: an inner unit shell, provided with at least one micro hole for dispersing air flow; a covering device, connected to the inner unit shell, for covering the micro hole when the duct air conditioner is closed, or for exposing the micro hole when the duct air conditioner is opened.

[0007] According to one embodiment of the utility model, there are multiple micropores, and the multiple micropores are located on the front side and the top side of the inner machine shell; the covering device is used to cover the micropores on the top side of the inner machine shell when the duct type air conditioner is turned on, and expose the micropores on the front side of the inner machine shell; or, it is used to cover the micropores on the front side of the inner machine shell when the duct type air conditioner is turned on, and expose the micropores on the top side of the inner machine shell.

[0008] According to one embodiment of the utility model, the covering device includes a first covering unit and a second covering unit; the first covering unit is arranged inside the inner machine outer shell, located on the front side of the inner machine outer shell, and connected to the inner machine outer shell, and is used to cover or expose the micropores on the front side of the inner machine outer shell; the second covering unit is arranged inside the inner machine outer shell, located on the top side of the inner machine outer shell, and connected to the inner machine outer shell, and is used to cover or expose the micropores on the top side of the inner machine outer shell.

[0009] According to one embodiment of the utility model, the first covering unit includes a first slide rail, a first baffle and a first linear motion component; the first slide rail is arranged vertically and connected to the inner machine housing, and the first slide rail has a first slide groove; the first baffle is arranged vertically, the end of the first baffle is located in the first slide groove, and can be slidably connected to the groove wall of the first slide groove; the first linear motion component is arranged on the inner machine housing and connected to the first baffle, and is used to drive the first baffle to perform reciprocating linear motion vertically.

[0010] According to one embodiment of the utility model, the first linear motion assembly includes a first motor, a first gear and a first rack; the first gear is coaxially connected to the output end of the first motor; the first rack is vertically arranged on the first baffle and meshes with the first gear.

[0011] According to one embodiment of the utility model, the second covering unit includes a second slide rail, a second baffle and a second linear motion assembly; the second slide rail is arranged along the first direction and connected to the inner machine housing, and the second slide rail has a second slide groove; the second baffle is arranged in a horizontal state, the end of the second baffle is located in the second slide groove, and can be slidably connected to the groove wall of the second slide groove; the second linear motion assembly is arranged on the inner machine housing and connected to the second baffle, and is used to drive the second baffle to perform reciprocating linear motion along the first direction; the first direction is the direction from the front of the inner machine housing to the rear of the inner machine housing.

[0012] According to one embodiment of the utility model, the second linear motion assembly includes a second motor, a second gear and a second rack; the second gear is coaxially connected to the output end of the second motor; the second rack is arranged on the second baffle along the first direction and meshes with the second gear.

[0013] According to an embodiment of the present invention, a projection screen device is also included. The projection screen device includes a retractable unit and a projection screen. The retractable unit is connected to the inner machine housing and is used to unfold the projection screen in a vertical state, or to retract the projection screen in a rolled state.

[0014] According to one embodiment of the utility model, a screen extension hole is provided on the bottom side of the inner machine shell; a retractable unit is arranged in the inner machine shell and is located at the screen extension hole, and is used to extend the projection screen from the inside of the inner machine shell to the outside of the inner machine shell to be unfolded in a vertical state, or to extend the projection screen from the outside of the inner machine shell to the inside of the inner machine shell to be accommodated in a rolled state; the indoor unit of the duct type air conditioner also includes a third baffle, which is located at the screen extension hole and is connected to the inner machine shell, and is used to cover the screen extension hole when the projection screen is located inside the inner machine shell.

[0015] The utility model also provides an air conditioner, comprising: an indoor unit of the duct-type air conditioner of the above-mentioned embodiment; and an outdoor unit connected to the indoor unit.

[0016] The indoor unit of the duct type air conditioner and the air conditioner of the utility model have the following characteristics and advantages:

[0017] When the duct air conditioner is turned off, that is, when the duct air conditioner stops running, the covering device can cover the micropores so that the inside and outside of the inner unit shell will not be connected through the micropores. As a result, dust on the outside of the inner unit shell will not enter the inside of the inner unit shell through the micropores, so that there is no dust inside the inner unit shell. Therefore, when the indoor unit is running, since there is no dust inside the inner unit shell, dust will not be blown out from the inner unit shell and will not affect the air quality, thereby improving the user experience of the air conditioner and solving the technical problem of affecting the indoor environmental air quality due to dust being blown out from the inner unit shell in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional schematic diagram of an indoor unit of a duct type air conditioner of the utility model.

[0020] Figure 2 It is an exploded view of an indoor unit of the duct type air conditioner of the utility model from one angle.

[0021] Figure 3 It is a three-dimensional schematic diagram of the covering device of the utility model.

[0022] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0023] Figure 5It is an exploded view of the indoor unit of the duct type air conditioner of the utility model from another angle.

[0024] Figure 6 yes Figure 5 Enlarged view of part B in the middle.

[0025] Reference numerals:

[0026] 100, inner machine housing; 110, micro holes; 120, screen extension hole; 200, covering device; 210, first covering unit; 211, first slide rail; 212, first baffle; 213, first linear motion assembly; 2131, first motor; 2132, first gear; 220, second covering unit; 221, second slide rail; 222, second baffle; 223, second linear motion assembly; 2231, second motor; 2232, second gear; 300, projection screen device; 400, third baffle. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] Figures 1 to 6 The indoor unit of the duct air conditioner and the air conditioner provided by the utility model are shown. As can be seen from the figure, the indoor unit of the duct air conditioner of the utility model includes an inner unit shell 100 and a covering device 200. The inner unit shell 100 has at least one micro hole 110 for dispersing airflow; the covering device 200 is connected to the inner unit shell 100, and is used to cover the micro hole 110 when the duct air conditioner is closed, or, is used to expose the micro hole 110 when the duct air conditioner is opened.

[0033] In specific implementation, when the duct air conditioner is turned off, that is, when the duct air conditioner stops running, the covering device 200 can cover the micropores 110, so that the inside and outside of the inner machine shell 100 will not be connected through the micropores 110, thereby, the dust outside the inner machine shell 100 will not enter the inner machine shell 100 through the micropores 110, so that there is no dust inside the inner machine shell 100. Therefore, when the indoor unit is running, since there is no dust inside the inner machine shell 100, dust will not be blown out from the inner machine shell 100 and will not affect the air quality, thereby improving the user experience of the air conditioner and solving the technical problem of affecting the indoor environmental air quality due to dust being blown out from the inner machine shell 100 in the prior art.

[0034] According to one embodiment of the present invention, there are multiple micropores 110, and the multiple micropores 110 are located on the front side of the inner machine shell 100 and the top side of the inner machine shell 100, that is, the front side of the inner machine shell 100 and the top side of the inner machine shell 100 both have multiple micropores 110; the covering device 200 is used to cover the micropores 110 on the top side of the inner machine shell 100 when the duct type air conditioner is turned on, and expose the micropores 110 on the front side of the inner machine shell 100; or, it is used to cover the micropores 110 on the front side of the inner machine shell 100 when the duct type air conditioner is turned on, and expose the micropores 110 on the top side of the inner machine shell 100.

[0035] In specific implementation, the indoor unit of the duct air conditioner of the utility model can have three states, namely, a first state, a second state and a third state. The first state is a state when the duct air conditioner is turned off. In this state, the covering device 200 can simultaneously cover the micropores 110 on the top side of the inner machine shell 100 and the micropores 110 on the front side of the inner machine shell 100; the second state is a state when the duct air conditioner is turned on. In this state, the covering device 200 can cover the micropores 110 on the top side of the inner machine shell 100 and expose the micropores 110 on the front side of the inner machine shell 100, thereby making The airflow flows out from the micropores 110 on the front side of the inner unit shell 100 to achieve front air outlet; the third state is another state when the duct air conditioner is turned on. In this state, the covering device 200 can cover the micropores 110 on the front side of the inner unit shell 100 and expose the micropores 110 on the top side of the inner unit shell 100, thereby making the airflow flow out from the micropores 110 on the top side of the inner unit shell 100 to achieve top air outlet; in summary, the outflow direction of the airflow of the indoor unit of the duct air conditioner can be adjusted by the covering device 200, so that the air conditioner is flexible and can supply air in different areas to meet the different needs of users.

[0036] According to one embodiment of the utility model, the covering device 200 may include a first covering unit 210 and a second covering unit 220; the first covering unit 210 is arranged inside the inner machine shell 100, and is located on the front side of the inner machine shell 100, and is connected to the inner machine shell 100, and is used to cover or expose the micropores 110 on the front side of the inner machine shell 100; the second covering unit 220 is arranged inside the inner machine shell 100, and is located on the top side of the inner machine shell 100, and is connected to the inner machine shell 100, and is used to cover or expose the micropores 110 on the top side of the inner machine shell 100.

[0037] In this embodiment, the first covering unit 210 includes a first slide rail 211, a first baffle plate 212 and a first linear motion assembly 213; the first slide rail 211 is vertically arranged and connected to the inner machine housing 100, and the first slide rail 211 has a first slide groove; the first baffle plate 212 is vertically arranged, and the end of the first baffle plate 212 is located in the first slide groove and can be slidably connected to the groove wall of the first slide groove; the first linear motion assembly 213 is arranged on the inner machine housing 100 and connected to the first baffle plate 212, and is used to drive the first baffle plate 212 to perform reciprocating linear motion vertically.

[0038] According to one embodiment of the utility model, the first linear motion assembly 213 includes a first motor 2131, a first gear 2132 and a first rack; the first gear 2132 is coaxially connected to the output end of the first motor 2131; the first rack is vertically arranged on the first baffle 212 and meshes with the first gear 2132.

[0039] During specific implementation, the rotation of the first motor 2131 can drive the first gear 2132 to rotate, and the rotation of the first gear 2132 can drive the first rack to perform linear motion along the vertical direction. Since the first rack is arranged on the first baffle 212, the first baffle 212 can also perform linear motion with the linear motion of the first rack.

[0040] According to one embodiment of the utility model, the second covering unit 220 includes a second slide rail 221, a second baffle 222 and a second linear motion component 223; the second slide rail 221 is arranged along the first direction and connected to the inner machine housing 100, and the second slide rail 221 has a second slide groove; the second baffle 222 is arranged in a horizontal state, the end of the second baffle 222 is located in the second slide groove, and can be slidably connected to the groove wall of the second slide groove; the second linear motion component 223 is arranged on the inner machine housing 100 and connected to the second baffle 222, and is used to drive the second baffle 222 to perform reciprocating linear motion along the first direction; the first direction is the direction from the front of the inner machine housing 100 to the rear of the inner machine housing 100.

[0041] In this embodiment, the second linear motion assembly 223 includes a second motor 2231, a second gear 2232 and a second rack; the second gear 2232 is coaxially connected to the output end of the second motor 2231; the second rack is arranged on the second baffle 222 along the first direction and meshes with the second gear 2232.

[0042] During specific implementation, the rotation of the second motor 2231 can drive the second gear 2232 to rotate, and the rotation of the second gear 2232 can drive the second rack to move linearly along the first direction. Since the second rack is arranged on the second baffle 222, the second baffle 222 can also move linearly with the linear motion of the second rack.

[0043] According to one embodiment of the utility model, the indoor unit of the duct-type air conditioner of the utility model may further include a projection screen device 300, the projection screen device 300 includes a retractable unit and a projection screen, the retractable unit is connected to the inner unit housing 100, and is used to unfold the projection screen in a vertical state, or to retract the projection screen in a rolled state.

[0044] In specific implementation, through the above-mentioned structural setting, the projection screen can be folded up when not in use to reduce space occupation.

[0045] In this embodiment, the retractable unit may include a drive motor and a winding column. The drive motor is located in the inner machine housing 100 and connected to the inner machine housing 100. The output end of the drive motor is coaxially connected to the winding column, and the projection screen can be wound around the winding column.

[0046] During specific implementation, the rotation of the driving motor can drive the winding column to rotate, and the rotation of the winding column can cause the projection screen to be unfolded or retracted.

[0047] According to one embodiment of the utility model, the bottom side of the inner machine housing 100 has a screen extension hole 120; the retracting unit is arranged in the inner machine housing 100 and is located at the screen extension hole 120, and is used to extend the projection screen from the inside of the inner machine housing 100 to the outside of the inner machine housing 100 to be unfolded in a vertical state, or to extend the projection screen from the outside of the inner machine housing 100 to the inside of the inner machine housing 100 to be accommodated in a rolled state; the indoor unit of the duct type air conditioner also includes a third baffle 400, which is located at the screen extension hole 120 and is connected to the inner machine housing 100, and is used to cover the screen extension hole 120 when the projection screen is located in the inner machine housing 100.

[0048] According to one embodiment of the utility model, the utility model also provides an air conditioner, comprising an indoor unit and an outdoor unit of the duct air conditioner of the above embodiment, wherein the outdoor unit is connected to the indoor unit. The specific structure, working principle and beneficial effects of the indoor unit of the duct air conditioner are the same as those of the above embodiment, and will not be repeated here.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An indoor unit of a duct type air conditioner, characterized in that: include: The inner shell (100) has at least one micro hole (110) for dispersing airflow; A covering device (200) is connected to the inner unit housing (100) and is used to cover the microholes (110) when the duct type air conditioner is in a closed state, or to expose the microholes (110) when the duct type air conditioner is in a opened state.

2. The indoor unit of the duct type air conditioner according to claim 1, characterized in that: There are a plurality of micro holes (110), and the plurality of micro holes (110) are located on the front side of the inner machine housing (100) and the top side of the inner machine housing (100); The covering device (200) is used to cover the micropores (110) on the top side of the inner unit outer shell (100) when the duct type air conditioner is turned on, and to expose the micropores (110) on the front side of the inner unit outer shell (100); or, to cover the micropores (110) on the front side of the inner unit outer shell (100) when the duct type air conditioner is turned on, and to expose the micropores (110) on the top side of the inner unit outer shell (100).

3. The indoor unit of the duct type air conditioner according to claim 2, characterized in that: The covering device (200) comprises a first covering unit (210) and a second covering unit (220); The first covering unit (210) is arranged inside the inner machine housing (100) and located at the front side of the inner machine housing (100), and is connected to the inner machine housing (100), and is used to cover or expose the micro hole (110) on the front side of the inner machine housing (100); The second covering unit (220) is arranged inside the inner machine outer shell (100), is located on the top side of the inner machine outer shell (100), and is connected to the inner machine outer shell (100), and is used to cover or expose the micro hole (110) on the top side of the inner machine outer shell (100).

4. The indoor unit of the duct type air conditioner according to claim 3, characterized in that: The first covering unit (210) comprises a first slide rail (211), a first baffle (212) and a first linear motion component (213); The first slide rail (211) is arranged vertically and connected to the inner machine housing (100), and the first slide rail (211) has a first slide groove; The first baffle (212) is arranged in a vertical state, and the end of the first baffle (212) is located in the first slide groove and is slidably connected to the groove wall of the first slide groove; The first linear motion component (213) is disposed on the inner machine housing (100) and connected to the first baffle plate (212), and is used to drive the first baffle plate (212) to perform reciprocating linear motion in the vertical direction.

5. The indoor unit of the duct type air conditioner according to claim 4, characterized in that: The first linear motion assembly (213) comprises a first motor (2131), a first gear (2132) and a first rack; The first gear (2132) is coaxially connected to the output end of the first motor (2131); The first rack is vertically arranged on the first baffle (212) and meshes with the first gear (2132).

6. The indoor unit of the duct type air conditioner according to claim 3, characterized in that: The second covering unit (220) comprises a second slide rail (221), a second baffle (222) and a second linear motion component (223); The second slide rail (221) is arranged along the first direction and connected to the inner machine housing (100), and the second slide rail (221) has a second slide groove; The second baffle (222) is arranged in a horizontal state, and the end of the second baffle (222) is located in the second slide groove and is slidably connected to the groove wall of the second slide groove; The second linear motion component (223) is disposed on the inner machine housing (100) and connected to the second baffle plate (222), and is used to drive the second baffle plate (222) to perform reciprocating linear motion along the first direction; The first direction is a direction from the front of the inner machine casing (100) to the rear of the inner machine casing (100).

7. The indoor unit of the duct type air conditioner according to claim 6, characterized in that: The second linear motion assembly (223) comprises a second motor (2231), a second gear (2232) and a second rack; The second gear (2232) is coaxially connected to the output end of the second motor (2231); The second rack is arranged on the second baffle (222) along the first direction and meshes with the second gear (2232).

8. The indoor unit of the duct type air conditioner according to any one of claims 1 to 7, characterized in that: Also included is a projection screen device (300), wherein the projection screen device (300) comprises a retractable unit and a projection screen; The retractable unit is connected to the inner machine housing (100) and is used to unfold the projection screen in a vertical state, or to retract the projection screen in a rolled state.

9. The indoor unit of the duct type air conditioner according to claim 8, characterized in that: The bottom side of the inner machine housing (100) is provided with a curtain extension hole (120); The retractable unit is arranged in the inner machine housing (100) and is located at the screen extension hole (120), and is used to make the projection screen extend from the inside of the inner machine housing (100) to the outside of the inner machine housing (100) to be unfolded in a vertical state, or to make the projection screen extend from the outside of the inner machine housing (100) to the inside of the inner machine housing (100) to be accommodated in a rolled state; The indoor unit of the duct air conditioner further comprises a third baffle (400), which is located at the screen extension hole (120) and is connected to the inner unit housing (100) and is used to cover the screen extension hole (120) when the projection screen is located inside the inner unit housing (100).

10. An air conditioner, characterized in that: include: An indoor unit of a duct air conditioner according to any one of claims 1 to 9; The outdoor unit is connected to the indoor unit.