An air conditioner indoor unit

Abstract

The application discloses an indoor unit of an air conditioner, which comprises a shell, an air inlet and an upper air outlet, and a heat exchanger, a fan, an upper air duct, a first air guide part, a hinge end and a rotating end, a rotating end, a gap, a guide structure and the like. The hinge end is rotatably connected to the upper edge of the upper air outlet to open or close the upper air outlet. When the first air guide part is in an open position, the rotating end of the first air guide part and the lower edge of the upper air outlet have a gap in the vertical direction. The guide structure is connected to the inner surface of the first air guide part. When the first air guide part is in the open position, at least part of the guide structure is located in the gap to guide the airflow passing through the gap to flow in a preset direction. The technical scheme can ensure that the airflow blown out of the upper air outlet can flow in the preset direction, and improve the heat exchange effect of the airflow blown out of the upper air outlet and indoor air.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to an indoor air conditioning unit. Background Technology

[0002] An air conditioner, also known as an air conditioner, is a device that uses artificial means to regulate and control parameters such as temperature, humidity, and airflow of the air inside a building or structure.

[0003] Currently, more and more people are choosing to install air conditioners indoors to regulate the temperature of the indoor air. Wall-mounted air conditioners are one type of air conditioner, and their flexible installation location, high cost-effectiveness, and wide applicability make them the first choice for most families when selecting an air conditioner.

[0004] In the prior art, the air conditioner indoor unit with top air outlet opens and closes the top air outlet by rotating the air guide component. At the same time, the air guide component guides the direction of airflow. However, when the air guide component is open, some airflow cannot be guided by the air guide component and is directly blown out of the air outlet, which disrupts the overall flow direction of the airflow and results in poor heat exchange between the airflow blown out of the top air outlet of the air conditioner indoor unit and the indoor air. Utility Model Content

[0005] This application discloses an indoor air conditioning unit that ensures that the airflow from the upper air outlet flows in a preset direction, thereby improving the heat exchange effect between the airflow from the upper air outlet and the indoor air.

[0006] To achieve the above objectives, some embodiments of this application provide an indoor air conditioning unit, including: a casing, the casing having an air inlet and an upper air outlet, the upper air outlet being located at the top front side of the casing; a heat exchanger disposed within the casing for exchanging heat with airflow flowing into the casing; a fan for introducing airflow into the casing through the air inlet, and after heat exchange by the heat exchanger, delivering it into the room through the upper air outlet; an upper air duct component, the upper air duct component forming an upper air duct for connecting the air outlet side of the fan with the upper air outlet; and a first guide... The first air guide has a hinged end and a rotating end disposed opposite to each other. The hinged end is rotatably connected to the upper edge of the upper air outlet to open or close the upper air outlet. When the first air guide is in the open position, there is a gap between the rotating end of the first air guide and the lower edge of the upper air outlet in the vertical direction. The second air guide is connected to the inner surface of the first air guide and is configured such that when the first air guide is in the open position, at least a portion of the air guide is located within the gap to guide the airflow passing through the gap to flow in a preset direction.

[0007] In related technologies, when the first air guide is in the open position, part of the airflow from the upper air outlet will be blown out directly from the gap. Its flow direction is different from that of the rest of the airflow from the upper air outlet under the guidance of the first air guide. The airflow blown out from the gap and the airflow blown out under the guidance of the first air guide will interfere with each other, resulting in unstable flow direction and flow state of the airflow blown out from the upper air outlet, which in turn causes poor heat exchange effect between the airflow blown out from the upper air outlet and the indoor air.

[0008] In this embodiment, when the first air guide is in the open position, the airflow passing through the gap is actively intervened by the guide structure located within the gap. As the airflow passes through the gap, it is guided by the guide structure, and its flow direction is changed to a preset direction of downward oblique flow. This ensures that both the airflow passing through the gap and the airflow along the first air guide flow in the preset direction, guaranteeing a more stable flow direction and state of the airflow blown from the upper air outlet, and improving the heat exchange effect between the airflow blown from the upper air outlet and the indoor air.

[0009] In some embodiments of this application, the airflow guiding structure includes: a plurality of air guide plates, the plurality of air guide plates being arranged at intervals along the thickness direction of the first air guide member; and a connector, the plurality of air guide plates being connected to the inner surface of the first air guide member through the connector.

[0010] In this way, multiple air guides divide the large airflow stream passing through the gap into multiple smaller, parallel streams and guide them, improving the organization and directionality of the airflow, reducing mutual interference and scattering between airflows, resulting in a longer air delivery distance and a softer, more comfortable breeze. At the same time, the connectors ensure the structural strength and rigidity of the multiple air guides connected to the inner surface of the first air guide component, preventing deformation due to airflow impact and ensuring the guiding reliability of the multiple air guides.

[0011] In some embodiments of this application, the spacing H1 between two adjacent air guide plates is 10mm to 15mm.

[0012] Thus, by setting the distance H1 between two adjacent air guide plates to 10mm to 15mm, it is possible to reduce air volume loss and noise caused by excessive airflow resistance while ensuring effective airflow guidance.

[0013] In some embodiments of this application, the distance H2 between the air guide plate adjacent to the first air guide and the first air guide is 10mm to 15mm.

[0014] Thus, by setting the distance H2 between the air guide plate adjacent to the first air guide to 10mm to 15mm, it is ensured that the airflow channel formed between the first air guide and the air guide plate adjacent to it has similar flow characteristics to the airflow channel between two adjacent air guide plates, so that the airflow can be blown out evenly and smoothly in the preset direction under the action of the first air guide and multiple air guide plates.

[0015] In some embodiments of this application, the air outlet end of the air guide plate is inclined to the side away from the first air guide member relative to the air inlet end of the air guide plate.

[0016] Thus, the air outlet of the air guide plate is tilted away from the first air guide component relative to the air inlet of the air guide plate, forming an inclined plane, which sets the flow direction of the airflow. The air guide plate guides the flow direction of the airflow in the preset direction, ensuring that the airflow passing through the gap can flow in the preset direction under the action of the air guide plate, thereby improving the heat exchange effect between the airflow blown out of the upper air outlet and the indoor air.

[0017] In some embodiments of this application, the air guide plate includes: a straight section, the extension direction of which is parallel to the first air guide member, and the air inlet end is disposed on the straight section; and an inclined section, the inclined section being connected to the end of the straight section away from the air inlet end, and the air outlet end being disposed on the end of the inclined section away from the straight section.

[0018] Thus, since the straight section extends parallel to the first air guide, the airflow direction through the gap on the straight section is consistent with the flow direction of the mainstream airflow flowing along the inner surface of the first air guide. This reduces the initial interference and impact of the straight section on the airflow, thereby lowering wind resistance. The core function of the inclined section is to actively guide the airflow, ensuring that the outlet is inclined away from the first air guide relative to the inlet.

[0019] By using a straight section to connect with the airflow passing through the gap, the smoothness of the airflow entering the straight section is ensured, reducing turbulence and energy loss. Furthermore, the inclined section further enables airflow deflection, effectively and accurately guiding the airflow in a preset direction.

[0020] In some embodiments of this application, the angle between the inclined segment and the straight segment is 155° to 165°.

[0021] Thus, by setting the angle α between the inclined and straight sections of the air guide plate to 155°–165°, the change in airflow direction from the straight section to the inclined section is a smooth and gradual process, avoiding flow separation and severe energy loss, and reducing airflow loss. At the same time, this angle provides sufficient guiding force, enabling the airflow to be delivered in the preset direction under the action of the inclined section.

[0022] In some embodiments of this application, along the direction away from the first air guide, the width L of the plurality of air guide plates decreases sequentially in the arrangement direction of the hinge end and the rotating end.

[0023] Thus, due to the varying uniformity of the airflow field at different locations of the upper air outlet, the smoothness and uniformity of the airflow passing through the gap also differ. The airflow near the first guide element is more constrained, resulting in a relatively stable flow field. This requires stronger guiding capabilities to maintain the airflow direction. Therefore, a guide plate with a larger width (L) along the arrangement direction of the hinge and rotating ends of the first guide element provides guiding force, ensuring that this portion of the airflow is delivered in the predetermined direction. Conversely, the airflow away from the first guide element is prone to diffusion and entrainment. Therefore, a guide plate with a smaller width (L) along the arrangement direction of the hinge and rotating ends of the first guide element alters the airflow direction. By matching the guiding requirements of different areas, the airflow blown out from the entire gap becomes more uniform in velocity, direction, and momentum, avoiding localized differences in airflow and improving the quality of the air delivery.

[0024] In some embodiments of this application, the width of the air guide plate is 15mm to 35mm in the arrangement direction of the hinge end and the rotating end.

[0025] Thus, by arranging the air guide plate in the hinged end and rotating end of the first air guide, the width L of the air guide plate is 15mm to 35mm. The air guide plate with this width has sufficient mechanical strength and rigidity, and has enough area to guide the airflow to flow at a preset angle, while controlling the resistance of the airflow along the air guide plate to a reasonable level.

[0026] In some embodiments of this application, the housing is further provided with a lower air outlet, which is located at the bottom of the housing; the housing is further provided with: a lower air duct component, in which a lower air duct is formed, which is used to connect the air outlet side of the fan with the lower air outlet; and a second air guide component, which is rotatably disposed at the lower air outlet to open or close the lower air outlet.

[0027] In this way, by setting up upper and lower air outlets, the flexibility and adaptability of air supply are enhanced. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit disclosed in an embodiment of this application from one perspective;

[0030] Figure 2 This is a schematic diagram of the structure of the air conditioner indoor unit disclosed in an embodiment of this application from another perspective;

[0031] Figure 3 This is a front view of the indoor unit of the air conditioner disclosed in the embodiments of this application;

[0032] Figure 4 This is an exploded view of the indoor unit of an air conditioner disclosed in an embodiment of this application;

[0033] Figure 5 for Figure 3 Sectional view at point AA;

[0034] Figure 6 This is a schematic diagram of the structure of the first air guide disclosed in the embodiments of this application;

[0035] Figure 7 for Figure 5 A magnified view of a section at point A in the middle;

[0036] Figure 8 This is a schematic diagram of the air outlet mode of the air conditioner indoor unit disclosed in the embodiments of this application;

[0037] Figure 9 This is a schematic diagram of the air outlet mode of the air conditioner indoor unit under operation as disclosed in the embodiments of this application;

[0038] Figure 10 This is a schematic diagram of the air conditioner indoor unit operating in the up-and-down air outlet mode as disclosed in the embodiments of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100 - Air conditioner indoor unit;

[0041] 1-House casing; 11-House casing air inlet; 12-Upper air outlet; 13-Lower air outlet;

[0042] 2-Heat exchanger;

[0043] 3- Fan;

[0044] 4-Upwind component; 41-Upwind passage; 42-First upwind passage wall; 43-Second upwind passage wall;

[0045] 5-First air guide component; 51-Hinged end; 52-Rotating end;

[0046] 6-Airflow guiding structure; 61-Air guide plate; 611-Air outlet; 612-Air inlet; 613-Straight section; 614-Inclined section; 62-Connecting component;

[0047] 7-Downwind duct component; 71-Downwind duct; 72-First downwind duct wall; 73-Second downwind duct wall;

[0048] 8-Second air guide component;

[0049] N-gap. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0052] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0053] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0054] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0055] The field of home appliance technology encompasses a wide range of product categories, including but not limited to refrigerators, washing machines, air conditioners, microwave ovens, dishwashers, and vacuum cleaners. The technological development trends for these products primarily focus on intelligentization, energy conservation and environmental protection, optimized user experience, and the application of new materials. Optimized user experience is achieved through design innovation and functional enhancement to meet consumers' demands for health, convenience, and personalization.

[0056] As an important type of household appliance, air conditioners, through their indoor units, regulate indoor temperature by delivering cool air to the room, thereby lowering the indoor temperature and keeping it within a comfortable range.

[0057] In related technologies, air conditioner indoor units with top-discharge air outlets have air guides installed at the top air outlets to open or close them. These air guides direct the airflow from the top air outlets. The airflow from the top air outlets is guided into the room by the air guides. However, when the air guides are open, there is a gap between the rotating end of the air guide and the lower edge of the top air outlet in the vertical direction. Some of the airflow from the top air outlets flows directly out through this gap and cannot flow in the preset direction. This results in an unstable overall flow direction of the airflow from the top air outlets and poor heat exchange with the indoor air.

[0058] Based on this, the present application provides an indoor air conditioning unit that can ensure that the airflow blown out of the upper air outlet can flow in a preset direction, thereby improving the heat exchange effect between the airflow blown out of the upper air outlet and the indoor air.

[0059] The present technical solution will be further described below with reference to the embodiments and accompanying drawings.

[0060] Please see Figure 1 This application provides an air conditioner indoor unit 100, which includes a casing 1. The casing 1 houses various functional components of the wall-mounted air conditioner indoor unit 100. The air conditioner indoor unit 100 in this embodiment is a wall-mounted air conditioner indoor unit (commonly also called a split-type air conditioner or wall-mounted unit). A wall-mounted air conditioner indoor unit is a type of air conditioner that is mounted on an indoor wall. It is currently the most common and widely used type of air conditioner in homes and small commercial spaces. Its advantages include: high cost-effectiveness, space saving, flexibility and convenience, and quiet operation and energy saving.

[0061] like Figures 1 to 3As shown, the housing 1 is provided with a housing air inlet 11 and an upper air outlet 12, with the upper air outlet 12 located at the top front side of the housing 1. The housing air inlet 11 is used to guide airflow into the interior of the housing 1, and the airflow flows into the room through the upper air outlet 12.

[0062] It should be noted that an air intake grille can be installed at the air inlet 11 of the casing to block foreign objects and dust from entering the interior of the casing 1, and to make the appearance of the indoor unit 100 of the air conditioner more neat and beautiful.

[0063] Combination Figure 1 and Figure 4 A heat exchanger 2 is installed inside the casing 1. The heat exchanger 2 is used to exchange heat with the airflow flowing into the casing 1. The heat exchanger 2 is a heat exchanger that utilizes the characteristic that liquid low-temperature refrigerant is easy to evaporate under low pressure. By absorbing the heat of the medium being cooled, it lowers the temperature of the surrounding air, thereby achieving a cooling effect. The cooled air after passing through the heat exchanger 2 is returned to the room through the air supply system, providing a comfortable indoor environment. Especially in the hot summer, the cooling effect of the heat exchanger 2 can significantly reduce the indoor temperature and improve people's living comfort. In this embodiment, the heat exchanger 2 is a finned heat exchanger. Of course, the heat exchanger 2 can also be other types of heat exchangers, and this embodiment does not specifically limit it.

[0064] The casing 1 is also equipped with a fan 3, which is used to introduce airflow into the casing 1 through the air inlet 11, and after heat exchange in the heat exchanger 2, the airflow is sent into the room through the upper air outlet 12. The fan 3 can introduce airflow into the interior of the casing 1, so that after the airflow is heat exchanged in the heat exchanger 2, the heat-exchanged airflow is sent back into the room under the action of the fan 3.

[0065] It should be noted that the fan 3 in this embodiment can be a cross-flow fan or other types of fans, and this embodiment does not make specific limitations on it.

[0066] Combination Figure 4 and Figure 5 The casing 1 is also provided with an upper air duct component 4, which forms an upper air duct 41. The upper air duct 41 is used to connect the air outlet side of the fan 3 to the upper air outlet 12. After heat exchange in the heat exchanger 2, the airflow blown out from the air outlet side of the fan 3 by the fan 3 flows in the upper air duct 41 and is blown into the room from the upper air outlet 12.

[0067] It should be noted that, as Figure 6As shown, the upper air duct 4 can be composed of a first upper air duct wall 42 and a second upper air duct wall 43 arranged opposite to each other along the front and rear direction of the housing 1. An upper air duct 41 is formed between the first upper air duct wall 42 and the second upper air duct wall 43. The airflow blown out from the air outlet side of the fan 3 flows along the first upper air duct wall 42 and the second upper air duct wall 43 in the upper air duct 41 to the upper air outlet 12.

[0068] Of course, the upper air duct 4 can also be a separate pipe component, with an upper air duct 41 formed inside the pipe component. One end of the pipe component is connected to the air outlet side of the fan 3, and the other end of the pipe component is connected to the upper air outlet 12. This embodiment does not specifically limit this.

[0069] Combination Figure 5 and Figure 6 The housing 1 also includes a first air guide 5, which has a hinged end 51 and a rotating end 52 arranged opposite to each other. The hinged end 51 is rotatably connected to the upper edge of the upper air outlet 12 to open or close the upper air outlet 12. When the first air guide 5 is in the open position, there is a gap N between the rotating end 52 of the first air guide 5 and the lower edge of the upper air outlet 12 in the vertical direction (e.g., ...). Figure 7 (As shown).

[0070] It should be noted that the first air guide 5 is a long strip-shaped plate structure. The rotating shaft of the first air guide 5 is located at the hinge end 51. The rotating shaft of the first air guide 5 is driven by a motor to rotate, thereby driving the rotating end 52 of the first air guide 5 to rotate, so as to open or close the upper air outlet 12.

[0071] It should be noted that when the first air guide 5 is in the open position, the first air guide 5 forms an angle of less than 90 degrees with the horizontal direction, that is, the first air guide 5 is in an inclined state, and its rotating end 52 faces downward. At this time, in the vertical direction, there is a certain distance between the rotating end 52 of the first air guide 5 and the lower edge of the upper air outlet 12. The gap N is formed by the space in the vertical direction between the rotating end 52 of the first air guide 5 and the lower edge of the upper air outlet 12.

[0072] like Figure 5 and Figure 6 As shown, the housing 1 is also provided with a flow guiding structure 6, which is connected to the inner surface of the first air guide 5. The flow guiding structure 6 is configured such that when the first air guide 5 is in the open position, at least part of the flow guiding structure 6 is located in the gap N, so as to guide the airflow passing through the gap N to flow in a preset direction.

[0073] It should be noted that the preset direction in this embodiment is the direction of downward airflow. The inner surface of the first air guide 5 is the surface of the first air guide 5 facing the inside of the housing 1 when the upper air outlet 12 of the first air guide 5 is closed. When the first air guide 5 is in the open position, the inner surface of the first air guide 5 has a guiding effect on the airflow.

[0074] In related technologies, when the first air guide 5 is in the open position, part of the airflow from the upper air outlet 12 will be blown out directly from the gap N. The flow direction of the airflow from the upper air outlet 12 is different from that of the rest of the airflow under the guidance of the first air guide 5. The airflow blown out from the gap N and the airflow blown out under the guidance of the first air guide 5 will interfere with each other, resulting in unstable flow direction and flow state of the airflow blown out from the upper air outlet 12, which in turn causes poor heat exchange effect between the airflow blown out from the upper air outlet 12 and the indoor air.

[0075] In this embodiment, when the first air guide 5 is in the open position, the airflow passing through the gap N is actively intervened by the guide structure 6 located within the gap N. As the airflow passes through the gap N, it is guided by the guide structure 6, and its flow direction is changed to a preset direction of downward oblique flow. This ensures that both the airflow passing through the gap N and the airflow along the first air guide 5 flow in the preset direction, guaranteeing a more stable flow direction and flow state of the airflow blown out of the upper air outlet 12, and improving the heat exchange effect between the airflow blown out of the upper air outlet 12 and the indoor air.

[0076] For example, when the indoor unit 100 of the air conditioner is running in heating mode, and the first air guide 5 is in the open position, the first air guide 5 is tilted downwards. At this time, part of the airflow from the upper air outlet 12 flows downwards along the first air guide 5, while the airflow passing through the gap N of the upper air outlet 12 will be blown out directly in the horizontal direction. The airflow passing through the gap N will interfere with the airflow flowing along the first air guide 5, causing the airflow to be unable to blow downwards in time, resulting in the airflow reaching the lower part of the indoor space more slowly, causing poor heating effect of the hot airflow and indoor air. However, through the guide structure 6 located at the gap N, the airflow flowing through the gap N flows downwards under the intervention of the guide structure 6, so that the airflow blown out of the upper air outlet 12 can all flow downwards, ensuring that the airflow reaches the lower part of the indoor space more quickly, thus improving the heating effect of the indoor unit 100 of the air conditioner.

[0077] In some embodiments, such as Figure 6 As shown, the airflow guiding structure 6 includes multiple air guide plates 61, which are spaced apart along the thickness direction of the first air guide 5.

[0078] It should be noted that the thickness direction of the first air guide 5 is perpendicular to the inner surface of the first air guide 5.

[0079] like Figure 6 As shown, the airflow guiding structure 6 also includes a connector 62, and multiple air guide plates 61 are connected to the inner surface of the first air guide 5 through the connector 62.

[0080] When the first air guide 5 rotates to the open position, the entire airflow guiding structure 6 rotates with the first air guide 5, and the multiple air guide plates 61 of the airflow guiding structure 6 are located within the gap N. When the airflow from the upper air duct 41 passes through the gap N, it is divided into multiple airflow streams that enter the flow channels between the multiple air guide plates 61. Each air guide plate 61 guides the airflow passing through it, making the airflow more concentrated and more smoothly delivered in a preset direction.

[0081] Multiple air guides 61 divide the large airflow stream passing through the gap N into multiple smaller, parallel streams and guide them, improving the organization and directionality of the airflow, reducing mutual interference and scattering between airflows, resulting in a longer air delivery distance and a softer, more comfortable breeze. Simultaneously, the connector 62 ensures the structural strength and rigidity of the multiple air guides 61 connected to the inner surface of the first air guide 5, preventing deformation due to airflow impact and ensuring the guiding reliability of the multiple air guides 61.

[0082] It should be noted that the connector 62 can be a plate-like structure or a mounting bracket; this embodiment does not specifically limit it in this regard.

[0083] For example, the connector 62 is a plate-shaped structure, and there are multiple connectors 62. Multiple air guide plates 61 are connected together by multiple connectors 62. Then, the multiple connectors 62 are connected to the inner surface of the first air guide 5 to ensure that the multiple air guide plates 61 have sufficient structural strength and rigidity.

[0084] Of course, the connector 62 can be a mounting bracket, which includes a fixing plate fixed to the inner surface of the first air guide 5, and multiple air guide plates 61 connected to the fixing plate of the mounting bracket. The multiple air guide plates 61 and the fixing plate of the mounting bracket form an integrated structure. This integrated mounting bracket structure has higher overall strength and rigidity, which can ensure the stability of the relative position of the air guide plates 61. It is not easy to deform under long-term use and airflow impact, thus ensuring the durability and reliability of the air guiding effect.

[0085] It should be noted that the connection between the connector 62 and the multiple air guide plates 61, as well as between the connector 62 and the first air guide 5, can be welding or integral molding. This embodiment does not make specific limitations on this.

[0086] It should be noted that the number of multiple air guide plates 61 can be 2, 3 or 4, and this embodiment does not make a specific limitation on this.

[0087] For example, the number of multiple air guide plates 61 is 3. If the number of air guide plates 61 is too large, when the first air guide 5 closes the upper air outlet 12, the air guide plates 61 will interfere with the air duct wall of the upper air duct 4. If the number of air guide plates 61 is too small, the guiding effect on the airflow will be poor.

[0088] It should be noted that, in addition to the multiple air guide plates 61 described in the above embodiments, the air guide structure 6 can also be a movable air guide plate or a perforated plate. This embodiment does not specifically limit it in this regard.

[0089] For example, the airflow guiding structure 6 is a movable airflow guide plate, which is fixedly installed on the inner surface of the first airflow guide 5 via a fixed base. The airflow guide plate is movably disposed on the fixed base. Specifically, the airflow guide plate can extend, retract, or rotate relative to the fixed base. The airflow guide plate is connected to the fixed base via a slide rail and can be linearly extended and retracted by a micro motor. When airflow guidance is needed, the airflow guide plate extends and enters the gap N, guiding the airflow passing through the gap N. When it is necessary to reduce wind resistance or deliver air in a more natural manner, the airflow guide plate can retract.

[0090] In some embodiments, such as Figure 7 As shown, the distance H1 between two adjacent air guide plates 61 is 10mm to 15mm. The size of the distance H1 between two adjacent air guide plates 61 will affect the flow state of the airflow between the two adjacent air guide plates 61.

[0091] If the distance H1 between two adjacent air guide plates 61 is less than 10mm, it means that the space provided for airflow between the two adjacent air guide plates 61 is too small, which will increase the resistance of airflow between the two adjacent air guide plates 61, resulting in increased airflow loss. At the same time, it is easier to generate high-frequency airflow noise with a "hissing" sound, which will affect the user experience.

[0092] If the distance H1 between two adjacent air guide plates 61 is greater than 15mm, it means that the space provided for airflow between the two adjacent air guide plates 61 is too large. When the airflow passes through the large gap between the two adjacent air guide plates 61, it is easy to re-merge and generate eddies and turbulence, which leads to a decrease in the airflow guiding effect, an unstable airflow direction, and a weakening of the concentration and distance of the air supply.

[0093] Therefore, in this embodiment, by setting the distance H1 between two adjacent air guide plates 61 to 10mm to 15mm, it is possible to reduce the air volume loss and noise caused by excessive airflow resistance while ensuring effective airflow guidance.

[0094] It should be noted that the spacing H1 between two adjacent air guide plates 61 can be 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, and this embodiment does not make a specific limitation on this.

[0095] For example, the distance H1 between two adjacent air guide plates 61 is 12.5mm. At this time, the air guiding effect and air volume between the two adjacent air guide plates 61 are balanced, which can ensure more air volume and effectively guide the air flow.

[0096] In some embodiments, such as Figure 7 As shown, the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 is 10mm to 15mm. It should be noted that the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 refers to the distance from the inner surface of the first air guide 5 to the surface of the air guide plate 61 adjacent to the first air guide 5 facing the first air guide 5.

[0097] If the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 is less than 10mm, it means that the airflow channel formed between the first air guide 5 and the air guide plate 61 adjacent to it is too narrow. When the airflow passes through, the airflow resistance will increase, which will cause most of the airflow to choose to pass through the flow channel with less resistance in the middle (i.e., between the two adjacent air guide plates 61), while the airflow channel formed between the first air guide 5 and the air guide plate 61 adjacent to it is blocked, resulting in a waste of effective air outlet area and air volume loss.

[0098] If the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 is greater than 15mm, it means that the airflow channel formed between the first air guide 5 and the air guide plate 61 adjacent to it is too wide. The airflow velocity and direction here will differ from the airflow between the two adjacent air guide plates 61, causing the airflow between the first air guide 5 and the air guide plate 61 adjacent to it to easily break away from the guidance of the air guide plate 61 and the first air guide 5, forming vortices or turbulence, thereby interfering with the directionality of the overall airflow.

[0099] Therefore, in this embodiment, by setting the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 to be 10mm to 15mm, it is ensured that the airflow channel formed between the first air guide 5 and the air guide plate 61 adjacent to it has similar flow characteristics to the airflow channel between two adjacent air guide plates 61, so that the airflow can be blown out evenly and smoothly along the preset direction under the action of the first air guide 5 and multiple air guide plates 61.

[0100] It should be noted that the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 can be 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, and this embodiment does not make a specific limitation on this.

[0101] For example, the distance H2 between the air guide plate 61 adjacent to the first air guide 5 and the first air guide 5 is 12.5mm. At this time, the airflow can obtain a more balanced and ideal airflow output effect under the action of the first air guide 5 and the air guide plate 61.

[0102] In some embodiments, such as Figure 7 As shown, the air outlet 611 of the air guide plate 61 is inclined away from the first air guide member 5 relative to the air inlet 612 of the air guide plate 61. It should be noted that the air outlet 611 of the air guide plate 61 is the end of the air guide plate 61 closer to the room in the direction of airflow, while the air inlet 612 of the air guide plate 61 is the end of the air guide plate 61 closer to the upper air duct 41 in the direction of airflow.

[0103] The air outlet 611 of the air guide plate 61 is inclined away from the first air guide 5 relative to the air inlet 612 of the air guide plate 61, forming an inclined plane, which sets the flow direction of the airflow. The air guide plate 61 guides the flow direction of the airflow in the preset direction, ensuring that the airflow passing through the gap N can flow in the preset direction under the action of the air guide plate 61, thereby improving the heat exchange effect between the airflow blown out of the upper air outlet 12 and the indoor air.

[0104] It should be noted that the air guide plate 61 can be an inclined plate structure or an arc-shaped plate structure, as long as it can guide the airflow passing through the gap N to flow in a preset direction. This embodiment does not make specific limitations on this.

[0105] In some embodiments, such as Figure 7 As shown, the air guide plate 61 includes a straight section 613 and an inclined section 614. The extension direction of the straight section 613 is parallel to that of the first air guide 5, and the air inlet end 612 is disposed on the straight section 613.

[0106] It should be noted that the extension direction of the straight section 613 being parallel to the first air guide 5 means that the straight section 613 is parallel to the inner surface of the first air guide 5. When the airflow passes through the air guide plate 61, it first flows along the straight section 613 (in the direction parallel to the inner surface of the first air guide 5).

[0107] The air guide plate 61 also includes an inclined section 614, which is connected to the end of the straight section 613 away from the air inlet end 612, and the air outlet end 611 is located at the end of the inclined section 614 away from the straight section 613.

[0108] In other words, in this embodiment, the air guide plate 61 is composed of a straight section 613 and an inclined section 614. When the airflow passes through the air guide plate 61, the airflow first flows along the straight section 613, then flows along the straight section 613 to the inclined section 614, and then blows into the room from the air outlet 611 of the air guide plate 61 along the inclined section 614.

[0109] Since the extension direction of the straight section 613 is parallel to that of the first air guide 5, it means that the airflow direction through the gap N on the straight section 613 is consistent with the flow direction of the mainstream airflow flowing along the inner surface of the first air guide 5. This reduces the initial interference and impact of the straight section 613 on the airflow and lowers the wind resistance. The core function of the inclined section 614 is to actively guide the airflow, ensuring that the outlet end 611 is inclined away from the first air guide 5 relative to the inlet end 612.

[0110] The smoothness of the airflow entering the straight section 613 is ensured by connecting it with the airflow passing through the gap N, reducing turbulence and energy loss. The inclined section 614 further enables airflow deflection, effectively and accurately guiding the airflow in a preset direction.

[0111] It should be noted that the connection between the straight section 613 and the inclined section 614 can be a one-piece molding transition, or it can be fixed by welding, snap-fitting, or other methods. This embodiment does not make specific limitations on this.

[0112] It should be noted that, in addition to being directly connected, the straight section 613 and the inclined section 614 can also be connected by a smooth transition arc surface. This smooth transition can further reduce the resistance of the airflow passing through this point and prevent the airflow from generating vortices during the process of flowing from the straight section 613 to the inclined section 614.

[0113] In some embodiments, such as Figure 7 As shown, the angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 is 155° to 165°. The size of the angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 is related to the flow state of the airflow when it flows from the straight section 613 to the inclined section 614. It should be noted that the angle α between the inclined section 614 and the straight section 613 refers to the angle formed by the intersection of the surface of the inclined section 614 and the surface of the straight section 613.

[0114] If the angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 is less than 155°, it means that the change in flow direction is too large when the airflow moves from the straight section 613 to the inclined section 614. When the airflow flows from the straight section 613 to the junction of the straight section 613 and the inclined section 614, it will suddenly be subjected to a strong impact and constraint, resulting in a rapid change in local velocity, which can easily generate eddies and airflow separation, thus causing airflow loss.

[0115] If the angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 is greater than 165°, it means that the change in the flow direction of the airflow is too small when it flows from the straight section 613 to the inclined section 614. This will weaken the guiding force of the inclined section 614 on the airflow and make it impossible to send the airflow in the preset direction.

[0116] Therefore, in this embodiment, by setting the angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 to 155° to 165°, the change in flow direction when the airflow moves from the straight section 613 to the inclined section 614 is a smooth and gradual process, avoiding flow separation and severe energy loss, and reducing airflow loss. At the same time, this angle provides sufficient guiding force, enabling the airflow to be delivered in a preset direction under the action of the inclined section 614.

[0117] It should be noted that the included angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 can be 155°, 157°, 160°, 163° or 165°, and this embodiment does not make a specific limitation on this.

[0118] For example, the angle α between the inclined section 614 and the straight section 613 of the air guide plate 61 is 160°. At this time, the airflow loss caused by the airflow flowing along the air guide plate 61 is less, and the inclined section 614 can more effectively guide the airflow to flow in the preset direction.

[0119] In some embodiments, such as Figure 7 As shown, along the direction away from the first air guide 5, the width L of the plurality of air guide plates 61 decreases sequentially in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5. That is to say, the air guide plate 61 closest to the first air guide 5 has the largest width L in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5, while the air guide plate 61 furthest from the first air guide 5 has the smallest width L in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5.

[0120] Because the airflow field uniformity varies at different locations of the upper air outlet 12, the smoothness and uniformity of the airflow passing through gap N also differ. The airflow near the first air guide 5 is more constrained, resulting in a relatively stable flow field. This requires strong guiding capacity to maintain the airflow direction. Therefore, a guide plate 61 with a larger width L in the arrangement direction of the hinge end 51 and rotating end 52 of the first air guide 5 provides guiding force, ensuring that this portion of the airflow is delivered in the predetermined direction. Meanwhile, the airflow away from the first air guide 5 is prone to diffusion and entrainment. Therefore, a guide plate 61 with a smaller width L in the arrangement direction of the hinge end 51 and rotating end 52 of the first air guide 5 changes the airflow direction. By matching the guiding requirements of different areas, the airflow blown out from the entire gap N becomes more uniform in speed, direction, and momentum, avoiding local differences in airflow and improving the air delivery quality.

[0121] It should be noted that, in addition to the above embodiments where the width L of the plurality of air guide plates 61 decreases sequentially in the direction away from the first air guide member 5 in the arrangement direction of the hinge end 51 and the rotating end 52, the width L of the plurality of air guide plates 61 in the arrangement direction of the hinge end 51 and the rotating end 52 remains unchanged in the direction away from the first air guide member 5. This embodiment does not specifically limit this.

[0122] In some embodiments, such as Figure 7 As shown, in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5, the width L of the air guide plate 61 is 15mm to 35mm. In the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5, the width L of the air guide plate 61 is related to the flow state of the airflow along the air guide plate 61, and determines the guiding area of ​​the airflow by the air guide plate 61.

[0123] If the width L of the air guide plate 61 is less than 15mm in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide member 5, it means that the air guide plate 61 has insufficient guiding area for airflow, its guiding effect on airflow is reduced, and it is difficult to effectively guide airflow to change direction. Furthermore, an excessively narrow air guide plate 61 is prone to breakage when subjected to long-term airflow pulsation impact.

[0124] If the width L of the air guide plate 61 is greater than 35mm in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5, the excessively wide air guide plate 61 will cause greater obstruction to the airflow, resulting in an increase in the distance the airflow travels along the air guide plate 61, which in turn leads to an increase in the flow loss of the airflow and a reduction in the air volume.

[0125] Therefore, in this embodiment, the width L of the air guide plate 61 is 15mm to 35mm, arranged in the direction of the hinge end 51 and the rotating end 52 of the first air guide 5. The air guide plate 61 with this width has sufficient mechanical strength and rigidity, and has enough area to guide the airflow to flow at a preset angle, while controlling the resistance of the airflow along the air guide plate 61 to a reasonable level.

[0126] It should be noted that, in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5, the width L of the air guide plate 61 can be 15mm, 20mm, 25mm, 30mm or 35mm, and this embodiment does not make a specific limitation on this.

[0127] For example, in the arrangement direction of the hinge end 51 and the rotating end 52 of the first air guide 5, the width L of the air guide plate 61 is 25mm. At this time, the first air guide 5 has a better guiding effect on the airflow, and the airflow resistance along the air guide plate 61 is smaller, thus taking into account both the air volume and the guiding effect on the airflow.

[0128] In some embodiments, see Figures 8 to 10 The housing 1 is also provided with a lower air outlet 13, which is located at the bottom of the housing 1. That is to say, the lower air outlet 13 is located at the bottom of the housing 1, supplying air to the lower area of ​​the room.

[0129] The housing 1 is also provided with a downdraft duct 7, and a downdraft duct 71 is formed in the downdraft duct 7. The downdraft duct 71 is used to connect the air outlet side of the ventilation fan 3 and the lower air outlet 13.

[0130] It should be noted that the downdraft duct 7 can be composed of a first downdraft duct wall 72 and a second downdraft duct wall 73 arranged opposite to each other along the front and rear direction of the housing 1. A downdraft duct 71 is formed between the first downdraft duct wall 72 and the second downdraft duct wall 73. The airflow blown out from the air outlet side of the fan 3 flows down to the air outlet 13 in the downdraft duct 71 along the first downdraft duct wall 72 and the second downdraft duct wall 73.

[0131] Of course, the downdraft duct 7 can also be a separate pipe, with a downdraft duct 71 formed inside the pipe. One end of the pipe is connected to the air outlet side of the fan 3, and the other end of the pipe is connected to the downdraft outlet 13. This embodiment does not specifically limit this.

[0132] The housing 1 also includes a second air guide 8, which is rotatably positioned at the lower air outlet 13 to open or close the lower air outlet 13. Specifically, the second air guide 8 has a plate-like structure, and its shaft is rotatably positioned at the lower air outlet 13. By driving it to rotate using a drive device (such as a stepper motor), the lower air outlet 13 can be opened or closed. When the second air guide 8 opens the lower air outlet 13, it can also guide the airflow in a specific direction.

[0133] This embodiment enhances the flexibility and adaptability of air supply by setting an upper air outlet 12 and a lower air outlet 13.

[0134] For example, by configuring the upper air outlet 12, the lower air outlet 13, the first air guide 5, and the second air guide 8, the indoor unit 100 of the air conditioner can operate in three modes. When the second air guide 8 closes the lower air outlet 13 and the first air guide 5 opens the upper air outlet 12, the indoor unit 100 of the air conditioner operates in the upper air outlet mode (e.g., ...). Figure 8 As shown), all airflow is delivered from the upper air outlet 12 and is directed along a preset direction via the guide structure 6, which facilitates the hot air landing under heating conditions. When the first guide component 5 closes the upper air outlet 12 and the second guide component 8 opens the lower air outlet 13, the indoor unit 100 operates in the lower air outlet mode (as shown). Figure 9 As shown), all airflow is blown out from the lower air outlet 13. Because hot air has a lower density, it naturally rises. In heating mode, this effectively delivers hot air from the bottom, allowing it to naturally fill the entire room, preventing hot air from accumulating at the top and improving heating efficiency and comfort. When the first air guide 5 opens the upper air outlet 12 and the second air guide 8 opens the lower air outlet 13, the indoor unit 100 operates in the up-and-down air outlet mode (as shown). Figure 10 As shown in the figure, the airflow is simultaneously delivered from the upper air outlet 12 and the lower air outlet 13, achieving rapid and wide-range air circulation, which is suitable for scenarios that require rapid adjustment of room temperature.

[0135] It should be noted that a component similar to the air guide structure 6 can also be installed at the lower air outlet 13 to optimize the airflow effect of the lower air outlet 13.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing has an air inlet and an upper air outlet, the upper air outlet being located at the top front side of the housing. The housing contains: A heat exchanger for exchanging heat with the airflow flowing into the housing; A fan is used to introduce airflow into the housing through the air inlet of the housing, and after heat exchange by the heat exchanger, it is sent into the room through the upper air outlet. An upper air duct component, wherein an upper air duct is formed within the upper air duct component, the upper air duct being used to connect the air outlet side of the fan with the upper air outlet; The first air guide has a hinged end and a rotating end that are arranged opposite to each other. The hinged end is rotatably connected to the upper edge of the upper air outlet to open or close the upper air outlet. When the first air guide is in the open position, there is a gap between the rotating end of the first air guide and the lower edge of the upper air outlet in the vertical direction. A flow guiding structure is connected to the inner surface of the first air guide member. The flow guiding structure is configured such that when the first air guide member is in the open position, at least a portion of the flow guiding structure is located within the gap to guide the airflow passing through the gap to flow in a preset direction.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The flow guiding structure includes: Multiple air guide plates are arranged at intervals along the thickness direction of the first air guide component; A connector is provided, through which the plurality of air guide plates are connected to the inner surface of the first air guide.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The distance H1 between two adjacent air guide plates is 10mm to 15mm.

4. The indoor unit of the air conditioner according to claim 2, characterized in that, The distance H2 between the air guide plate adjacent to the first air guide and the first air guide is 10mm to 15mm.

5. The indoor unit of the air conditioner according to claim 2, characterized in that, The air outlet end of the air guide plate is inclined to the side away from the first air guide member relative to the air inlet end of the air guide plate.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The air guide plate includes: A straight section, the extension direction of which is parallel to the first air guide, and the air inlet is disposed in the straight section; An inclined section is connected to the end of the straight section away from the air inlet, and the air outlet is located at the end of the inclined section away from the straight section.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The angle α between the inclined segment and the straight segment is 155° to 165°.

8. The indoor unit of the air conditioner according to claim 2, characterized in that, Along the direction away from the first air guide, the width L of the plurality of air guide plates decreases sequentially in the arrangement direction of the hinge end and the rotating end.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, In the arrangement direction of the hinge end and the rotating end, the width L of the air guide plate is 15mm to 35mm.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, The housing is also provided with a lower air outlet, which is located at the bottom of the housing; The housing also contains: Downwind duct component, wherein a downwind duct is formed within the downwind duct component, the downwind duct being used to connect the air outlet side of the fan with the downwind outlet; The second air guide is rotatably disposed at the lower air outlet to open or close the lower air outlet.

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