Indoor unit and air conditioner

Abstract

This application provides an indoor unit and an air conditioner. The indoor unit includes a housing assembly, a sliding door, upper and lower air sweeping blades, and left and right air guide plates. The housing assembly has an air outlet and an air duct communicating with the air outlet. The upper and lower air sweeping blades are disposed within the air duct. The left and right air guide plates are disposed at the air outlet, located in front of the upper and lower air sweeping blades. At least one of the left and right air guide plates and the upper and lower air sweeping blades has a through hole. The sliding door is located in front of the left and right air guide plates and is slidable relative to the housing assembly to open or close the air outlet. In one of the air supply states of the indoor unit, a portion of the airflow blown out of the air duct can be blown out through the through holes on the left and right air guide plates and / or the upper and lower air sweeping blades, thereby cutting the airflow into numerous small airflows, achieving a gentle breeze effect, allowing the airflow to diffuse evenly into the surrounding space, avoiding direct airflow, and adapting to usage scenarios requiring gentle air supply.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more specifically, to an indoor unit and an air conditioner. Background Technology

[0002] In traditional floor-standing air conditioners, the airflow inside the duct is blown directly out of the indoor unit's air outlet, resulting in a relatively concentrated airflow path and potentially causing continuous, localized strong blowing. Moreover, the concentrated airflow blowing out of the air outlet is affected by gravity, which can easily cause cold air to sink to the bottom or hot air to rise (for example, the floor is cold but the ceiling is hot), resulting in uneven airflow diffusion within the room. Utility Model Content

[0003] This application addresses the shortcomings of existing methods by proposing an indoor unit and air conditioner to solve the technical problem that the airflow path from the indoor unit's air outlet is relatively concentrated, which may result in continuous localized strong blowing.

[0004] In a first aspect, embodiments of this application provide an indoor unit, including:

[0005] The housing assembly has an air outlet and an air duct communicating with the air outlet;

[0006] Upper and lower sweeping blades are installed inside the air duct;

[0007] Left and right air guide plates are disposed at the air outlet, located in front of the upper and lower air sweeping blades; at least one of the left and right air guide plates and the upper and lower air sweeping blades is provided with a through hole;

[0008] A sliding door is located in front of the left and right air guide plates. The sliding door is slidable relative to the housing assembly to open or close the air outlet.

[0009] Optionally, the upper and lower sweeping blades are provided with a first through hole;

[0010] In the soft airflow mode of the indoor unit, the upper and lower sweeping blades are positioned at an angle to the first plane that is less than a first threshold angle.

[0011] The left and right air guide plates are inclined to intersect or perpendicular to the first plane, which is the plane where the air outlet is located.

[0012] Optionally, the left and right air guide plates are provided with a second through hole;

[0013] In the soft wind blowing state of the indoor unit, the angle between the left and right air guide plates and the first plane is less than the second threshold angle.

[0014] The upper and lower sweeping blades are located at an upward tilting angle, a downward tilting angle, or perpendicular to the first plane, which is the plane where the air outlet is located.

[0015] Optionally, the sliding door is provided with a third through hole;

[0016] In the soft airflow mode of the indoor unit, the sliding door blocks at least part of the air outlet, and the third through hole is connected to the air outlet.

[0017] Optionally, the upper and lower sweeping blades are multiple, and the multiple upper and lower sweeping blades include at least one first group of upper and lower sweeping blades and at least one second group of upper and lower sweeping blades distributed along the upper and lower direction, and each group of upper and lower sweeping blades is driven independently.

[0018] Optionally, in the soft airflow mode of the indoor unit,

[0019] At least one of the first set of upper and lower sweeping blades is located at an upward tilting angle, or at a downward tilting angle, or at an angle to the first plane that is less than a first threshold angle.

[0020] At least one of the second set of upper and lower sweeping blades is located at an upward tilting second tilting angle, or at a downward tilting second tilting angle, or at an angle to the first plane that is less than the first threshold angle;

[0021] The left and right air guide plates intersect the first plane at an angle or are perpendicular to the first plane; the first plane is the plane where the air outlet is located.

[0022] Optionally, the upper and lower sweeping blades are provided with a first through hole, and the left and right air guide plates are provided with a second through hole;

[0023] In the first gentle airflow state of the indoor unit, the angle between at least two sets of the upper and lower sweeping blades and the first plane is less than the first threshold angle; the angle between the left and right air guide plates and the first plane is less than the second threshold angle.

[0024] Optionally, the upper and lower sweeping blades are provided with a first through hole, and the left and right air guide plates are provided with a second through hole;

[0025] In the second gentle airflow state of the indoor unit, at least one of the first set of upper and lower air-sweeping blades has an angle greater than a first predetermined angle with the first plane, and at least one of the second set of upper and lower air-sweeping blades has an angle less than the first predetermined angle with the first plane.

[0026] The angle between the left and right air guide plates and the first plane is less than the second predetermined angle or is perpendicular to the first plane; the first plane is the plane where the air outlet is located.

[0027] Optionally, the sliding door includes two sliding doors, which are arranged at a distance from each other in the left-right direction, and a third through hole is provided on each sliding door;

[0028] In the first and / or second gentle airflow states of the indoor unit, both sliding doors are positioned opposite the sidewall of the housing assembly, exposing the air outlet.

[0029] Optionally, the sliding door includes two sliding doors, which are arranged at a distance from each other in the left-right direction, and each sliding door is provided with a third through hole;

[0030] In the first and / or second gentle airflow states of the indoor unit, the two sliding doors are configured to expose part of the air outlet, and the two sliding doors are configured to switch between a first position and a second position.

[0031] In the first position, the indoor unit exposes a first portion of the air outlet; in the second position, the indoor unit exposes a second portion of the air outlet.

[0032] Optionally, the sliding door includes two sliding doors, which are arranged at a distance from each other in the left-right direction;

[0033] The sliding door is an arc-shaped plate, and the third through hole is inclined relative to the first plane; the third through holes of the two sliding doors are symmetrically arranged; the first plane is the plane where the air outlet is located.

[0034] Optionally, the end of the third through hole away from the air outlet is inclined to both sides of the air outlet.

[0035] Optionally, the upper and lower sweeping blades are provided with a first through hole, the left and right air guide plates are provided with a second through hole, and the sliding door is provided with a third through hole;

[0036] The first distance between two adjacent first through holes is greater than the diameter of the first through hole;

[0037] The second distance between two adjacent second through holes is greater than the diameter of the second through hole;

[0038] The third distance between two adjacent third through holes is greater than the diameter of the third through hole;

[0039] The diameters of the first through hole, the second through hole, and the third through hole increase sequentially.

[0040] The first spacing, the second spacing, and the third spacing increase sequentially.

[0041] Optionally, the indoor unit further includes a grille, which is rotatably disposed at the air outlet, located between the left and right air guide plates and the sliding door, and the grille has an air guide channel.

[0042] Optionally, the air guide channel includes at least one of the following:

[0043] An inclined air guide channel that intersects with the first plane.

[0044] A straight-through air guide channel perpendicular to the first plane;

[0045] Air guide channels with different areas at both ends; the first plane is the plane where the air outlet is located.

[0046] Optionally, the indoor unit further includes a dustproof screen disposed at the outlet of the air duct, the dustproof screen being located between the upper and lower air sweeping blades and the left and right air guide plates.

[0047] Secondly, this application provides an air conditioner, including the indoor unit described in the above embodiments.

[0048] The beneficial technical effects of the technical solutions provided in this application include:

[0049] In this embodiment, at least one of the left and right air guide plates and the upper and lower sweeping blades is provided with a through hole. When the left and right air guide plates and the upper and lower sweeping blades swing and sweep air, or are fixed at a certain set angle, the airflow blown out of the air duct can pass through the through holes on the left and right air guide plates and / or the upper and lower sweeping blades, thereby cutting the airflow blown out of the air duct into multiple small airflows to form a wide air supply band, improving the uniformity of airflow diffusion. When the air conditioner supplies air, it can avoid direct airflow and achieve a better soft wind effect.

[0050] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0051] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0052] Figure 1 This is a partial structural diagram of an indoor unit provided in an embodiment of this application;

[0053] Figure 2 A cross-sectional structural diagram of an indoor unit supplying air when the sliding door is fully closed, provided as an embodiment of this application;

[0054] Figure 3A cross-sectional structural diagram of an indoor unit supplying air when the sliding door is fully open, provided as an embodiment of this application;

[0055] Figure 4 A cross-sectional structural diagram of an indoor unit supplying air when one of its sliding doors is open, provided as an embodiment of this application;

[0056] Figure 5 A cross-sectional structural diagram of an indoor unit that switches between two sliding doors in a first and a second position to deliver air, provided for an embodiment of this application;

[0057] Figure 6 This is a schematic diagram of the structure of a sliding door provided in an embodiment of this application;

[0058] Figure 7 This is a schematic diagram of the structure of the left and right air guide plates provided in the embodiments of this application;

[0059] Figure 8 This application provides a schematic diagram of the structure of the first set of upper and lower sweeping blades and the second set of upper and lower sweeping blades in an embodiment of the present application.

[0060] Figure 9 This is a schematic diagram of the upper and lower sweeping blades provided in an embodiment of this application.

[0061] Explanation of reference numerals in the attached figures:

[0062] 10 - Housing assembly;

[0063] 11-Air outlet; 12-Air duct;

[0064] 20 - Upper and lower sweeping blades; 21 - First through hole; 201 - First group of upper and lower sweeping blades; 202 - Second group of upper and lower sweeping blades;

[0065] 30 - Left and right air guide plates; 31 - Second through hole;

[0066] 40 - Sliding door; 41 - Third through hole;

[0067] 50-Cross-flow fan; 60-Evaporator; 70-Dustproof screen; 80-Grate; 81-Air guide channel. Detailed Implementation

[0068] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0069] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0070] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0071] In traditional floor-standing air conditioners, the airflow inside the duct is blown directly out of the indoor unit's air outlet, resulting in a relatively concentrated airflow path and potentially causing continuous, localized strong blowing. Moreover, the concentrated airflow blowing out of the outlet is affected by gravity, which can easily lead to cold air sinking to the bottom and hot air rising (for example, the floor is cold, but the ceiling is hot), resulting in uneven airflow diffusion within the room.

[0072] This application provides an indoor unit to solve the technical problem in related technologies where the airflow path from the indoor unit's air outlet is relatively concentrated, which may result in continuous localized strong blowing.

[0073] Reference Figures 1-9 The indoor unit of this application embodiment includes a housing assembly 10, upper and lower air sweeping blades 20, left and right air guide plates 30, and a sliding door 40. The housing assembly 10 has an air outlet 11 and an air duct 12 communicating with the air outlet 11.

[0074] The upper and lower sweeping blades 20 are disposed within the air duct 12. The left and right guide vanes 30 are disposed at the air outlet 11, located in front of the upper and lower sweeping blades 20. At least one of the left and right guide vanes 30 and the upper and lower sweeping blades 20 has a through hole. The sliding door 40 is located in front of the left and right guide vanes 30, and the sliding door 40 is slidable relative to the housing assembly 10 to open or close the air outlet 11.

[0075] In this embodiment, at least one of the left and right air guide plates 30 and the upper and lower sweeping blades 20 is provided with a through hole. When the left and right air guide plates 30 and the upper and lower sweeping blades 20 swing and sweep air, or are fixed at a certain set angle, the airflow blown out by the air duct 12 can pass through the through holes on the left and right air guide plates 30 and / or the upper and lower sweeping blades 20, thereby cutting the airflow blown out by the air duct 12 into multiple small airflows to form a wide air supply belt, improving the uniformity of airflow diffusion. When the air conditioner supplies air, it can avoid direct airflow and achieve a better soft wind effect.

[0076] Optionally, refer to Figures 2-5 as well as Figures 8-9 In one optional embodiment, the upper and lower sweeping blades 20 are provided with a first through hole 21.

[0077] In a gentle airflow mode of the indoor unit, the vertical air-sweeping blades 20 are positioned at an angle less than a first threshold angle with the first plane. The left and right air guide vanes 30 are either inclined to intersect the first plane or perpendicular to the first plane.

[0078] In this embodiment, when the angle between the upper and lower sweeping blades 20 and the first plane is less than a first threshold angle, the upper and lower sweeping blades 20 are approximately closed. When only the upper and lower sweeping blades 20 have a first through hole 21, and the left and right guide plates 30 have no holes, by setting the upper and lower sweeping blades 20 in an approximately closed state where the angle between them and the first plane is less than the first threshold angle, the axis of the first through hole 21 can form an angle with the airflow direction that is less than the first threshold angle, or is approximately parallel to it. This allows the upper and lower sweeping blades 20 to achieve the maximum softening effect. The left and right guide plates 30 intersect the first plane at an incline, which can laterally guide the softened airflow. Alternatively, the left and right guide plates 30 are perpendicular to the first plane, which can guide the softened airflow forward, adjusting the airflow direction to deliver a soft breeze to a specific area.

[0079] It should be noted that the first plane is the plane where the air outlet 11 is located, that is, the vertical plane at the air outlet 11.

[0080] Optionally, refer to Figures 2-9 Multiple upper and lower sweeping blades 20 are arranged at intervals along the vertical direction, and multiple upper and lower sweeping blades 20 are rotatably installed in the air duct 12.

[0081] In this embodiment, when the indoor unit supplies air, multiple vertically oriented sweeping blades 20, spaced along the vertical direction, can swing up and down to sweep the air, thereby dividing, fanning, and guiding the concentrated airflow blown out of the air duct 12. This avoids direct airflow and makes the airflow diffuse more evenly. Moreover, during the up-and-down swinging of the vertically oriented sweeping blades 20, the airflow can also pass through the first through hole 21, further dividing the airflow into multiple small airflows. This promotes thorough mixing of indoor hot and cold air and greatly improves the temperature control defects of traditional cabinet air conditioners, where cold air sinks to the bottom and hot air rises.

[0082] This application embodiment is illustrated by taking the example that each upper and lower sweeping blade 20 has a first through hole 21.

[0083] Optionally, refer to Figures 2-5Multiple vertically oriented air-sweeping blades 20 are rotatably mounted on the first side wall of the air duct 12, and the multiple vertically oriented air-sweeping blades 20 are configured to swing up and down synchronously. The structure that drives the multiple vertically oriented air-sweeping blades 20 to swing up and down synchronously can be a commonly used motor-driven crank-connecting rod structure in the art, which will not be described in detail in the embodiments of this application.

[0084] Optionally, Figures 8-9 The upper and lower sweeping blades 20 are multiple, including at least one first group of upper and lower sweeping blades 201 and at least one second group of upper and lower sweeping blades 202 distributed along the upper and lower direction, and each group of upper and lower sweeping blades 20 is driven independently.

[0085] Optionally, in some gentle airflow modes of the indoor unit, at least one first set of up and down sweeping blades 201 is located at a first upward tilt angle, or at a second downward tilt angle, or at an angle to the first plane that is less than a first threshold angle.

[0086] At least one of the second set of upper and lower sweeping blades 202 is located at an upward tilting second tilting angle, or at a downward tilting second tilting angle, or at an angle to the first plane that is less than a first threshold angle.

[0087] The left and right air guide plates 30 intersect the first plane at an angle or are perpendicular to the first plane.

[0088] In this embodiment, each group of upper and lower sweeping blades 20 is driven independently, enabling the first group of upper and lower sweeping blades 201 and the second group of upper and lower sweeping blades 202 to be controlled at preset angles, thus providing a wider range of adjustment. Compared to synchronous drive, this expands the air supply scenarios of the indoor unit and meets the air supply needs in different scenarios.

[0089] For example, in one air supply scenario, when the air conditioner blows cold air, at least one first set of upper and lower sweeping blades 201 are positioned at a first upward tilt angle, and at least one second set of upper and lower sweeping blades 202 are positioned at an angle to the first plane that is less than a first threshold angle, thus achieving closure; the left and right guide vanes 30 are perpendicular to the first plane. Therefore, the first set of upper and lower sweeping blades 201 guides the upper airflow upward, extending the air delivery distance of the upper airflow and guiding the uniform mixing of hot and cold air, while the second set of upper and lower sweeping blades 202 cuts the lower airflow into multiple streams, achieving a gentle breeze for the lower airflow.

[0090] For example, in one air supply scenario, when the air conditioner blows hot air, at least one first set of upper and lower sweeping blades 201 is positioned at an angle less than a first threshold angle with the first plane, thus achieving closure; at least one second set of upper and lower sweeping blades 202 is positioned at an upward tilting angle, and the left and right guide vanes 30 are perpendicular to the first plane. Therefore, the second set of upper and lower sweeping blades 202 guides the lower airflow downwards, extending the air delivery distance of the lower airflow and guiding the uniform mixing of hot and cold air, while the first set of upper and lower sweeping blades 201 cuts the upper airflow into multiple streams, achieving a gentle breeze for the upper airflow.

[0091] Reference Figures 2-5 as well as Figure 7 In another optional embodiment, the left and right air guide plates 30 are provided with a second through hole 31.

[0092] In a gentle airflow mode of the indoor unit, the left and right air guide vanes 30 are positioned at an angle less than a second threshold angle with the first plane. The upper and lower sweeping blades 20 are positioned at an upward tilt angle, a downward tilt angle, or perpendicular to the first plane.

[0093] In this embodiment, when the angle between the left and right guide vanes 30 and the first plane is less than the second threshold angle, the left and right guide vanes 30 are in a nearly closed state. When only the left and right guide vanes 30 have the first through hole 21, and the upper and lower sweeping blades 20 have no holes, by setting the left and right guide vanes 30 in a closed state where the angle between them and the first plane is less than the second threshold angle, the axis of the second through hole 31 can be at an angle less than the second threshold angle or approximately parallel to the airflow direction, thereby enabling the left and right guide vanes 30 to achieve the maximum gentle breeze effect.

[0094] The up-and-down sweeping blades 20 can tilt upwards, downwards, or perpendicular to the first plane, thereby guiding the softened airflow upwards, downwards, or forwards, adjusting the airflow direction to deliver the softened air to a specific area. For example, based on the characteristics of cold air sinking and hot air rising in the indoor unit, when the air conditioner delivers cold air, the up-and-down sweeping blades 20 are tilted upwards to guide the cold air into the upper part of the space. The cold air then sinks to the lower part of the space under gravity, ensuring a uniform mixture of cold and hot air within the space. When the air conditioner delivers hot air, the up-and-down sweeping blades 20 are tilted downwards to guide the hot air into the lower part of the space. The hot air then rises to the upper part of the space, ensuring a uniform mixture of cold and hot air within the space.

[0095] Optionally, refer to Figures 2-5 as well as Figure 7 The left and right air guide plates 30 have at least two sets, and the at least two sets of left and right air guide plates 30 are arranged at intervals along the left and right directions.

[0096] In this embodiment, when the indoor unit supplies air, at least two sets of left and right air guide vanes 30, spaced along the left and right direction, can swing left and right to sweep the air, allowing the left and right air guide vanes 30 to continue to divide, fan, and guide the airflow. During the swinging process of the left and right air guide vanes 30, the airflow can pass through the second through hole 31 to achieve secondary soft airflow, which can further reduce the soft airflow attenuation rate of the indoor unit and improve the uniformity of the overall space temperature distribution. This application only illustrates the example where each set of left and right air guide vanes 30 has a second through hole 31.

[0097] Optionally, when the indoor unit is in air supply mode, the left and right air guide vanes 30 and the up and down sweeping blades 20 can also remain stationary at a set angle instead of oscillating back and forth. Alternatively, one of the left and right air guide vanes 30 and the up and down sweeping blades 20 can oscillate back and forth while the other remains stationary. These various combinations of the left and right air guide vanes 30 and the up and down sweeping blades 20 can all provide the indoor unit with different degrees of gentle airflow, which users can freely set according to different scenarios. This application does not impose specific limitations.

[0098] Optionally, at least two sets of left and right air guide vanes 30 can each be coupled with a driving component to achieve independent control, so that in one air supply state of the indoor unit, at least one set of left and right air guide vanes 30 can be controlled to swing, while the remaining at least one set of left and right air guide vanes 30 are fixed at a preset angle.

[0099] Reference Figures 2-9 In some alternative embodiments, the upper and lower air-sweeping blades 20 are provided with a first through hole 21, and the left and right air guide plates 30 are provided with a second through hole 31. In the first soft air supply state of the indoor unit, the angle between at least two sets of upper and lower air-sweeping blades 20 and the first plane is less than a first threshold angle; the angle between the left and right air guide plates 30 and the first plane is less than a second threshold angle.

[0100] In this embodiment, in the first soft air supply state of the indoor unit, at least two sets of upper and lower sweeping blades 20 and left and right guide plates 30 are all set to their respective closed states. The airflow of the air duct 12 passes through the first through hole 21 on the upper and lower sweeping blades 20 and the second through hole 31 on the left and right guide plates 30 in sequence. This can improve the softening effect of the airflow. Compared with the traditional non-perforated structure, it can significantly reduce the soft air attenuation rate and ensure that the soft air effect is long-lasting and stable.

[0101] Alternatively, in some other embodiments, the upper and lower sweeping blades 20 are provided with a first through hole 21, and the left and right guide vanes 30 are provided with a second through hole 31.

[0102] In the second gentle airflow mode of the indoor unit, at least one set of first-group up-and-down sweeping blades 201 forms an angle greater than a first predetermined angle with the first plane, and at least one set of second-group up-and-down sweeping blades 202 forms an angle less than the first predetermined angle with the first plane. The left and right air guide plates 30 form an angle less than a second predetermined angle with the first plane or are perpendicular to the first plane.

[0103] In this embodiment, during the second gentle airflow state of the indoor unit, the angles between the first set of upper and lower sweeping blades 201 and the second set of upper and lower sweeping blades 202 and the first plane can be different, resulting in different gentle airflow effects for the upper and lower airflows. The left and right guide vanes 30 can be positioned perpendicular to the first plane to guide air forward, tilted to one side, or closed to achieve a greater degree of gentle airflow effect.

[0104] In this embodiment of the application, the first predetermined angle is greater than the first threshold angle.

[0105] Reference Figures 2-6 In another alternative embodiment, the sliding door 40 is provided with a third through hole 41.

[0106] Reference Figure 2 When the indoor unit is in gentle airflow mode, the sliding door 40 blocks at least part of the air outlet 11, and the third through hole 41 is connected to the air outlet 11.

[0107] In this embodiment, a third through hole 41 is provided on the sliding door 40. In one of the air supply states of the indoor unit, the sliding door 40 can be completely or partially closed to block at least part of the air outlet 11, so that part of the airflow at the air outlet 11 can be blown out from the third through hole 41 of the sliding door 40. This can cut the airflow at the air outlet 11 into multiple small airflows, thereby achieving a gentle breeze effect, avoiding direct airflow, and reducing the airflow attenuation rate. It can also make the airflow diffuse evenly to the surrounding space, promote the full mixing of indoor cold and hot air, improve the uniformity of the overall space temperature distribution, and improve the overall cooling and heating experience. This can improve the temperature control defects of traditional cabinet air conditioners where cold air sinks to the bottom and hot air rises.

[0108] Moreover, when the sliding door 40 is fully closed, the indoor unit maintains a neat and uniform appearance, enhancing the overall aesthetics and home décor. When the sliding door 40 is partially closed, some airflow can be quickly blown out from the exposed air outlet 11, while the other part of the airflow passes through the third through-hole 41 to create a gentle breeze. This achieves localized gentle breezes, avoiding direct airflow while increasing the air volume per unit time, thus meeting the rapid cooling requirements of large spaces.

[0109] In this embodiment, in addition to having through holes in at least one of the upper and lower sweeping blades 20 and the left and right air guide plates 30, a third through hole 41 is formed in the sliding door 40. This allows the indoor unit to have a gentle breeze function in the air supply states when the sliding door 40 is closed, fully open, and partially open, enabling the airflow to be blown out gently. Furthermore, in the air supply state when the sliding door 40 is closed, the airflow can pass through at least two gentle breezes, which can further improve the gentle breeze effect of the indoor unit. Compared with the traditional non-perforated structure, it can significantly reduce the gentle breeze attenuation rate and ensure a long-lasting and stable gentle breeze effect.

[0110] Optionally, refer to Figures 2-9 This application embodiment uses the example of a first through hole 21 on the upper and lower sweeping blades 20, a second through hole 31 on the left and right guide plates 30, and a third through hole 41 on the sliding door 40 as an example for illustration.

[0111] In this embodiment, by creating through holes in all the upper and lower sweeping blades 20, left and right guide vanes 30, and sliding door 40, the concentrated airflow blown out by the air duct 12 is cut in multiple stages to soften it into multiple small airflows, thus achieving triple soft airflow. This maximizes the soft airflow effect of the air conditioner, promotes the full mixing of indoor hot and cold air, improves the uniformity of the overall space temperature distribution, and greatly improves the temperature control defects of traditional cabinet air conditioners where cold air sinks to the bottom and hot air rises.

[0112] Thanks to the aforementioned structural design, the indoor unit of this application can adapt to multiple scenarios and improve user comfort. For example, the gentle, diffused airflow can meet the needs of various scenarios such as prolonged close-range airflow in bedrooms, protection for sensitive individuals in mother and baby rooms, and joint and head protection in elderly rooms, effectively avoiding discomfort such as catching a cold, headache, and joint pain and stiffness caused by strong direct airflow, thus adapting to the usage needs of different groups of people.

[0113] Moreover, the indoor unit's gentle breeze function is achieved by drilling holes in the original upper and lower sweeping blades 20, left and right air guide plates 30, and sliding door 40 of the cabinet air conditioner. The structural design is simple and practical, requiring no additional complex components. The structural modifications are minimal, and it has strong assembly compatibility with existing cabinet air conditioners, making it easy for mass production applications.

[0114] Optionally, in some embodiments, reference is made to Figures 1-5 The sliding door 40 includes two sliding doors 40, which are arranged at a distance from each other in the left and right direction, and each sliding door 40 is provided with a third through hole 41.

[0115] The two sliding doors 40 are configured to be relatively close to each other to close at least part of the air outlet 11. The two sliding doors 40 are also configured to be opposite to each other to expose at least part of the air outlet 11.

[0116] Optionally, refer to Figure 4In the first and / or second gentle air supply states of the indoor unit, any one of the sliding doors 40 can be fully or partially opened, that is, at least part of the sliding door 40 is disposed opposite to the side wall of the housing assembly 10, and the other sliding door 40 is closed, that is, disposed in front of the air outlet 11 to expose the corresponding part of the air outlet 11.

[0117] Optionally, refer to Figure 3 In the first and / or second gentle airflow modes of the indoor unit, both sliding doors 40 are positioned opposite the side wall of the housing assembly 10, exposing the air outlet 11. Thus, the concentrated airflow from the duct 12 is softened by the sequential up-and-down sweeping blades 20 and left-and-right guide vanes 30 before being blown out. This two-stage softening process allows the airflow to diffuse evenly into the surrounding space, promoting thorough mixing of hot and cold air and improving the overall uniformity of temperature distribution.

[0118] Optionally, refer to Figure 5 In the first and / or second gentle air supply states of the indoor unit, the two sliding doors 40 are configured to expose part of the air outlet 11, and the two sliding doors 40 are configured to switch between the first and second positions.

[0119] In the first position, the indoor unit exposes the first part of the air outlet 11; in the second position, the indoor unit exposes the second part of the air outlet 11.

[0120] In this embodiment, the two sliding doors 40 are also configured to slide synchronously to the left or to the right while maintaining a set distance. That is, the two sliding doors 40 switch between a first position and a second position. This allows the orientation of the exposed air outlet 11 to be changed during the sliding of the two sliding doors 40. The coordinated movement of the two sliding doors 40 can achieve the effect of swinging airflow, which can improve the overall uniformity of temperature distribution in the space and avoid localized direct airflow.

[0121] Optionally, the air outlet 11 of the first part and the air outlet 11 of the second part may partially overlap or may not overlap at all; this application does not impose any specific restrictions.

[0122] Furthermore, it should be noted that the first and second positions of the two sliding doors 40 in this embodiment are preset positions when the sliding doors 40 swing back and forth. Users can adjust the range of the two sliding doors 40 swinging back and forth as needed to change the orientation of the air vents between the two sliding doors 40, thereby achieving left and right back and forth air sweeping and expanding the diffusion range of the airflow.

[0123] Optionally, the sliding door 40 is an arc-shaped plate, and the third through hole 41 is inclined relative to the first plane; the third through holes 41 of the two sliding doors 40 are symmetrically arranged; the first plane is the plane where the air outlet 11 is located.

[0124] In the embodiments of this application, reference is made to Figures 1-5 The sliding door 40 is designed as an arc-shaped plate, which facilitates the sliding of the sliding door 40 relative to the housing assembly 10 and also ensures that the sliding door 40 forms a smooth transition surface after closing, improving the appearance consistency of the indoor unit. Because the sliding door 40 is designed as an arc-shaped plate, at least part of the third through hole 41 opened on the arc-shaped plate is inclined relative to the first plane, and the third through holes 41 of the two sliding doors 40 are symmetrically arranged, which can further improve the airflow diffusion range.

[0125] It should be noted that, in the embodiments of this application, the plane where the air outlet 11 is located refers to the plane parallel to the vertical direction at the air outlet 11.

[0126] Optionally, refer to Figure 4 The end of the third through hole 41 that is away from the air outlet 11 is inclined to both sides of the air outlet 11.

[0127] In this embodiment, the end of the third through hole 41 away from the air outlet 11 is inclined to both sides of the air outlet 11, which can increase the range of airflow diffusion to both sides of the indoor unit and improve the uniformity of the overall space temperature distribution.

[0128] Optionally, refer to Figures 1-9 The first spacing between two adjacent first through holes 21 is greater than the diameter of the first through hole 21. This ensures the structural strength of the upper and lower sweeping blades 20.

[0129] The second spacing between two adjacent second through holes 31 is greater than the diameter of the second through hole 31. This ensures the structural strength of the left and right air guide plates 30.

[0130] The third spacing between two adjacent third through holes 41 is greater than the diameter of the third through hole 41. This ensures the structural strength of the sliding door 40.

[0131] Optionally, the diameters of the first through-hole 21, the second through-hole 31, and the third through-hole 41 increase sequentially. The first spacing, the second spacing, and the third spacing also increase sequentially. As a result, along the direction of airflow movement, the diffusion range of the airflow can be gradually increased, allowing the airflow to diffuse evenly into the surrounding space, which can promote the thorough mixing of hot and cold air indoors and improve the uniformity of the overall space temperature distribution.

[0132] Optionally, this application only uses the following examples: the diameter of the third through hole 41 is 10mm~12mm, and the distance between two horizontally adjacent or vertically adjacent first through holes 21 is 19mm~20mm; the diameter of the first through hole 21 is 4mm~5mm, and the distance between two horizontally adjacent or vertically adjacent second through holes 31 is 8mm~9mm; the diameter of the second through hole 31 is 3mm~4mm, and the distance between two horizontally adjacent or vertically adjacent third through holes 41 is 4.75mm~5.25mm. All the ranges for the first through hole 21, second through hole 31, and third through hole 41 mentioned above include both upper and lower limits.

[0133] Optionally, refer to Figures 2-5 The indoor unit of this embodiment also includes a grille 80. The grille 80 is rotatably disposed at the air outlet 11, located between the left and right air guide plates 30 and the sliding door 40, and the grille 80 has an air guide channel 81. Thus, the airflow can also achieve a gentle breeze effect by passing through the air guide channel 81 of the grille 80, which can further improve the gentle breeze effect of the indoor unit.

[0134] Optionally, continue to refer to Figures 2-5 The air guide channel 81 includes at least one of the following: an inclined air guide channel intersecting the first plane at an angle; a straight air guide channel perpendicular to the first plane; and an air guide channel 81 with different areas at both ends. Therefore, by using different forms of air guide channels 81, or by combining multiple forms of air guide channels 81, it is possible to guide airflow forward, to the sides, or in a diffused manner while achieving a gentle breeze, thereby expanding the diffusion range of the airflow and achieving rapid temperature control within the space.

[0135] The accompanying drawings in this application specification Figures 2-5 The following explanation uses a grille 80 with air guide channels 81 having different areas at both ends as an example.

[0136] Optionally, refer to Figures 2-5 The indoor unit of this embodiment also includes an evaporator 60 and a cross-flow fan 50. The indoor unit of this embodiment also includes a dust filter 70, which is disposed at the front of the air duct 12. Upward and downward sweeping blades 20 are located at the rear of the dust filter 70, and at least two sets of left and right air guide vanes 30 are located at the front of the dust filter 70. Therefore, the dust filter 70 can isolate some external dust, preventing dust from entering the air duct 12 and affecting the service life of internal components.

[0137] Based on the same inventive concept, this application provides an air conditioner, including: the indoor unit of the above embodiment.

[0138] The air conditioner in this application embodiment includes all the beneficial effects of the indoor unit described above, which will not be repeated here.

[0139] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0140] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0141] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0142] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0143] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. An indoor unit, characterized in that, include: The housing assembly has an air outlet and an air duct communicating with the air outlet; Upper and lower sweeping blades are installed inside the air duct; Left and right air guide plates are disposed at the air outlet, located in front of the upper and lower air sweeping blades; at least one of the left and right air guide plates and the upper and lower air sweeping blades is provided with a through hole; A sliding door is located in front of the left and right air guide plates. The sliding door is slidable relative to the housing assembly to open or close the air outlet.

2. The indoor unit according to claim 1, characterized in that, The upper and lower sweeping blades are provided with a first through hole; In the soft airflow mode of the indoor unit, the upper and lower sweeping blades are positioned at an angle to the first plane that is less than a first threshold angle. The left and right air guide plates are inclined to intersect or perpendicular to the first plane, which is the plane where the air outlet is located.

3. The indoor unit according to claim 1, characterized in that, The left and right air guide plates are provided with a second through hole; In the soft wind blowing state of the indoor unit, the angle between the left and right air guide plates and the first plane is less than the second threshold angle. The upper and lower sweeping blades are located at an upward tilting angle, a downward tilting angle, or perpendicular to the first plane, which is the plane where the air outlet is located.

4. The indoor unit according to claim 1, characterized in that, The sliding door has a third through hole; In the soft airflow mode of the indoor unit, the sliding door blocks at least part of the air outlet, and the third through hole is connected to the air outlet.

5. The indoor unit according to claim 1, characterized in that, The upper and lower sweeping blades are multiple, and the multiple upper and lower sweeping blades include at least one first group of upper and lower sweeping blades and at least one second group of upper and lower sweeping blades distributed along the upper and lower direction, and each group of upper and lower sweeping blades is driven independently.

6. The indoor unit according to claim 5, characterized in that, In the soft airflow mode of the indoor unit At least one of the first set of upper and lower sweeping blades is located at an upward tilting angle, or at a downward tilting angle, or at an angle to the first plane that is less than a first threshold angle. At least one of the second set of upper and lower sweeping blades is located at an upward tilting second tilting angle, or at a downward tilting second tilting angle, or at an angle to the first plane that is less than the first threshold angle; The left and right air guide plates intersect the first plane at an angle or are perpendicular to the first plane; the first plane is the plane where the air outlet is located.

7. The indoor unit according to claim 5, characterized in that, The upper and lower sweeping blades are provided with a first through hole, and the left and right air guide plates are provided with a second through hole; In the first gentle airflow state of the indoor unit, the angle between at least two sets of the upper and lower sweeping blades and the first plane is less than the first threshold angle; the angle between the left and right air guide plates and the first plane is less than the second threshold angle.

8. The indoor unit according to claim 5, characterized in that, The upper and lower sweeping blades are provided with a first through hole, and the left and right air guide plates are provided with a second through hole; In the second gentle airflow state of the indoor unit, at least one of the first set of upper and lower air-sweeping blades has an angle greater than a first predetermined angle with the first plane, and at least one of the second set of upper and lower air-sweeping blades has an angle less than the first predetermined angle with the first plane. The angle between the left and right air guide plates and the first plane is less than the second predetermined angle or is perpendicular to the first plane; the first plane is the plane where the air outlet is located.

9. The indoor unit according to claim 7 or 8, characterized in that, The sliding door includes two sliding doors, which are arranged at a distance from each other in the left-right direction, and each sliding door has a third through hole. In the first and / or second gentle airflow states of the indoor unit, both sliding doors are positioned opposite the sidewall of the housing assembly, exposing the air outlet.

10. The indoor unit according to claim 7 or 8, characterized in that, The sliding door includes two sliding doors, which are arranged at a distance from each other in the left-right direction, and each sliding door is provided with a third through hole; In the first and / or second gentle airflow states of the indoor unit, the two sliding doors are configured to expose part of the air outlet, and the two sliding doors are configured to switch between a first position and a second position. In the first position, the indoor unit exposes a first portion of the air outlet; in the second position, the indoor unit exposes a second portion of the air outlet.

11. The indoor unit according to claim 4, characterized in that, The sliding door includes two doors, which are arranged at a distance from each other in the left-right direction; The sliding door is an arc-shaped plate, and the third through hole is inclined relative to the first plane; the third through holes of the two sliding doors are symmetrically arranged; the first plane is the plane where the air outlet is located.

12. The indoor unit according to claim 11, characterized in that, The end of the third through hole away from the air outlet is inclined to both sides of the air outlet.

13. The indoor unit according to claim 1, characterized in that, The upper and lower sweeping blades are provided with a first through hole, the left and right air guide plates are provided with a second through hole, and the sliding door is provided with a third through hole; The first distance between two adjacent first through holes is greater than the diameter of the first through hole; The second distance between two adjacent second through holes is greater than the diameter of the second through hole; The third distance between two adjacent third through holes is greater than the diameter of the third through hole; The diameters of the first through hole, the second through hole, and the third through hole increase sequentially. The first spacing, the second spacing, and the third spacing increase sequentially.

14. The indoor unit according to claim 1, characterized in that, The indoor unit also includes a grille, which is rotatably disposed at the air outlet, located between the left and right air guide plates and the sliding door, and the grille has an air guide channel.

15. The indoor unit according to claim 14, characterized in that, The air guide channel includes at least one of the following: An inclined air guide channel that intersects with the first plane. A straight-through air guide channel perpendicular to the first plane; Air guide channels with different areas at both ends; the first plane is the plane where the air outlet is located.

16. The indoor unit according to claim 1, characterized in that, The indoor unit also includes a dustproof screen installed at the outlet of the air duct, the dustproof screen being located between the upper and lower air sweeping blades and the left and right air guide plates.

17. An air conditioner, characterized in that, Including the indoor unit as described in any one of claims 1-16.

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