Indoor unit of air conditioner

Abstract

The utility model relates to an air conditioner indoor unit which comprises a shell part, a draught fan assembly, a heat exchanger and an air guide assembly, the draught fan assembly and the heat exchanger are installed in the shell part, the draught fan assembly comprises a volute, an impeller and a driving motor, and the air guide assembly is arranged in an air outlet or between the air outlet and the heat exchanger. The air guide assembly comprises at least one air guide part, and the air guide part extends in the conveying direction of airflow; according to the air guide part, the air guide channel is formed in the air outlet in the transverse direction, when airflow is output from the air outlet, the transverse air component can be reduced to a certain degree through the air guide channel, then generation of vortexes is reduced, the fin sound is remarkably reduced or eliminated, and the user experience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioner technology, and in particular relates to an indoor air conditioner unit. Background Technology

[0002] The key components for heat exchange in an air conditioner indoor unit are the heat exchanger and the fan assembly. When the air conditioner indoor unit is running, the fan assembly generates a directional airflow. The airflow flows through the heat exchanger and exchanges heat with the internal refrigerant before being output to the room to achieve the purpose of regulating the indoor temperature.

[0003] The heat exchanger consists of piping and fins. When the fan assembly delivers air, the airflow output from the fan assembly comes into contact with the sides of the volute and is reflected, generating a certain amount of crosswind component. The airflow also comes into contact with the upper and lower walls of the air outlet, creating a certain amount of reflected airflow. The crosswind and the reflected airflow meet to create vortices. These vortices act on the fins, producing fin noise, which increases the operating noise in the indoor unit of the air conditioner and affects the user experience. Some air conditioners improve fin noise by reducing the fan speed, adjusting the heat exchanger angle, increasing the fin spacing, and changing the shape of the volute. However, these improvement methods have problems such as high modification costs and low heat exchange efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an air conditioner indoor unit that solves the problems in the prior art, such as the vortex airflow formed by the fan assembly acting on the fins of the heat exchanger, generating fin noise, resulting in increased operating noise in the air conditioner indoor unit and affecting user experience.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0006] This utility model proposes an indoor unit for an air conditioner, which includes:

[0007] A housing component having an internal mounting cavity formed therein, and an air inlet and an air outlet formed on the housing component;

[0008] A fan assembly includes a volute, an impeller, and a drive motor. The volute is disposed in the mounting cavity, and an inner cavity is formed inside the volute. The impeller is disposed in the inner cavity of the volute and is connected to the output end of the drive motor. An air inlet and an air outlet are formed on the volute.

[0009] A heat exchanger is disposed in the mounting cavity, corresponding to the air outlet position of the fan assembly;

[0010] An air guide assembly is disposed within the air outlet or between the air outlet and the heat exchanger. The air guide assembly includes at least one air guide section that extends along the airflow delivery direction.

[0011] In some embodiments of this application, the air guide assembly is installed inside the air outlet, the first end of the air guide is fixed to the top or bottom wall of the air outlet, and the second end of the air guide is a certain length away from the bottom or top wall of the air outlet.

[0012] In some embodiments of this application, the air guide assembly further includes a fixing part, which is connected to the top or bottom wall of the air outlet, and the air guide part is disposed on the fixing part.

[0013] In some embodiments of this application, the fixing part and the air guide part correspond one-to-one, or the air guide parts are spaced apart on the fixing part.

[0014] In some embodiments of this application, each of the air guide portions and the fixing portion is arranged at an angle, and the angle α between the air guide portion and the fixing portion satisfies: 30°≤α≤90°.

[0015] In some embodiments of this application, the overall shape of the air guide is polygonal or the second end of the air guide is arc-shaped.

[0016] In some embodiments of this application, the volute includes a first volute and a second volute, the first volute is located above the second volute, the inner cavity of the volute is formed between the first volute and the second volute, an upper cover plate is formed on the first volute, a lower cover plate is formed on the second volute, and the air outlet is formed between the upper cover plate and the lower cover plate.

[0017] In some embodiments of this application, a support frame is provided in the mounting cavity, an mounting opening is formed on the support frame, the volute is detachably connected to the support frame, and the upper cover plate and the lower cover plate extend through the mounting opening to the other side of the support frame.

[0018] In some embodiments of this application, the outer wall of the first volute is provided with an outwardly extending first connecting edge, and the corresponding position of the second volute is provided with a second connecting edge. Fixing holes are formed on the first connecting edge and the second connecting edge, and the first connecting edge and the second connecting edge are detachably connected to the support frame by fasteners.

[0019] In some embodiments of this application, a mating portion is formed on the first connecting outer edge or the second connecting outer edge, and a mating hole is formed on the second connecting outer edge or the first connecting outer edge. The mating portion and the mating hole are connected to achieve a detachable connection between the second connecting outer edge and the first connecting outer edge.

[0020] In some embodiments of this application, a positioning protrusion is formed on the docking portion, the docking hole is an elongated hole, and the positioning protrusion is connected to the docking hole.

[0021] In some embodiments of this application, a snap-fit ​​portion is further formed on the first volute or the second volute, and a snap-fit ​​portion corresponding to the snap-fit ​​portion is formed on the second volute or the first volute, and the first volute and the second volute are detachably connected by snap-fit.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are:

[0023] The indoor unit of the air conditioner involved in this application has an air guide component provided in the air outlet of the fan assembly or between the air outlet and the heat exchanger. The air guide component includes at least one air guide section, which forms an air guide channel in the air outlet along the lateral direction. When the airflow is output from the air outlet, the air guide channel can reduce the crosswind component to a certain extent, thereby reducing the generation of vortices, thus significantly reducing or eliminating fin noise and improving the user experience.

[0024] In addition, one end of the first and second volutes is connected to the docking hole via a positioning protrusion on the docking part, and the other end is detachably connected via a snap-fit ​​part and a buckle part, making installation convenient, quick and efficient.

[0025] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a top view of the indoor unit of the air conditioner according to an embodiment;

[0028] Figure 2 This is a connection diagram of the volute and impeller in a wind turbine assembly according to an embodiment;

[0029] Figure 3 This is one of the structural diagrams of the air guide assembly according to an embodiment;

[0030] Figure 4 This is a second structural diagram of the air guide assembly according to an embodiment;

[0031] Figure 5 This is the third structural diagram of the air guide assembly according to the embodiment;

[0032] Figure 6 This is the fourth structural diagram of the air guide assembly according to the embodiment;

[0033] Figure 7 A split view of the first and second volutes;

[0034] Figure 8 This is a three-dimensional view of the first volute.

[0035] Figure 9 A three-dimensional view of the second volute;

[0036] Figure 10 This is a structural diagram of the snap-fit ​​part on the second volute.

[0037] Figure 11 for Figure 10 Enlarged diagram of point A in the diagram;

[0038] Figure label:

[0039] 100. Housing components;

[0040] 110. Air outlet; 120. Support frame;

[0041] 200. Fan assembly; 201. Air outlet; 2011. Top wall; 2012. Bottom wall;

[0042] 210. First volute; 211. Top cover plate; 212. First connecting outer edge; 2121. Butt joint; 2122. Positioning protrusion; 213. Snap-fit ​​part; 2131. Snap-fit ​​slot;

[0043] 220. Second volute; 221. Lower cover plate; 222. Second connecting outer edge; 2221. Butt hole; 223. Snap-fit ​​part; 2231. Snap-fit ​​end;

[0044] 230. Impeller;

[0045] 240. Air guide assembly; 241. Fixing part; 242. Air guide part; 243. Air guide channel;

[0046] 250. Drive motor;

[0047] 300. Heat exchanger. Detailed Implementation

[0048] 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.

[0049] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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.

[0050] 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.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection 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.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0054] In this application, the air conditioner performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

[0055] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0056] The expansion valve expands the high-temperature, high-pressure liquid refrigerant that condenses in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0057] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0058] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0059] refer to Figure 1 This utility model proposes an indoor air conditioning unit, which includes a housing 100, a fan assembly 200, a heat exchanger 300, and an air guide assembly 240.

[0060] The housing component 100 is an overall housing structure with an internal mounting cavity formed therein, in which the fan assembly 200 and the heat exchanger 300 are disposed.

[0061] The housing 100 has an air inlet and an air outlet 110. An air duct is provided between the air inlet and the air outlet 110 in the installation cavity. Under the action of the fan assembly 200, the airflow is input from the air inlet into the air duct, and after heat exchange by the heat exchanger 300, it is output from the air outlet 110 to the room to regulate the indoor temperature.

[0062] The fan assembly 200 includes a volute, an impeller 230, and a drive motor 250. The volute is disposed in the mounting cavity, and an inner cavity is formed inside the volute. The impeller 230 is disposed in the inner cavity of the volute and is connected to the output end of the drive motor 250.

[0063] The volute has an air inlet and an air outlet 201. After the drive motor 250 starts, it drives the impeller 230 to rotate so that the airflow enters from the air inlet and exits from the air outlet 201.

[0064] The heat exchanger 300 corresponds to the air outlet 201 of the fan assembly 200. Specifically, for ease of understanding, the first direction is defined as the length direction of the housing 100, and the second direction is the width direction of the housing 100.

[0065] Heat exchanger 300 includes heat exchange tubing and fins.

[0066] The heat exchanger 300 is arranged along the first direction, that is, the fins on the heat exchanger 300 are spaced apart along the first direction.

[0067] The airflow output from the fan assembly 200 comes into contact with the two sides of the volute and forms a reflection, which generates a certain amount of crosswind component flowing along the first direction. The airflow also forms a certain amount of reflected airflow when it comes into contact with the upper and lower walls of the air outlet 201. The reflected airflow is transported along a third direction perpendicular to the first and second directions. When the crosswind volume meets the reflected airflow, a vortex is generated. The vortex acts on the fins and generates fin sound.

[0068] refer to Figure 2 To avoid fin noise, this application provides an air guide assembly 240 inside the air outlet 201 or between the air outlet 201 and the heat exchanger 300.

[0069] Combination Figures 3-6 The air guide assembly 240 includes at least one air guide portion 242, which extends along the airflow delivery direction.

[0070] The air guide section 242 is an air guide plate structure, which is specifically arranged along the second direction to transport the airflow through it forward along the first direction, reduce the generation of crosswinds, thereby reducing vortices, and also helps to reduce the fin noise caused by vortices acting on the fins.

[0071] In some embodiments of this application, the air guide assembly 240 is disposed between the air outlet 201 and the heat exchanger 300.

[0072] Specifically, the air guide assembly 240 is fixed on the inner wall of the mounting cavity. Part of the airflow output from the air outlet 201 is delivered to the heat exchanger 300 for heat exchange after passing through the air guide assembly 240.

[0073] The air guide assembly 240 has at least one air guide section 242. In order to reduce the generation of crosswind air volume, this application provides a plurality of air guide sections 242 at intervals along the first direction.

[0074] Each air guide section 242 is an air guide plate extending along the second direction. After the airflow is output from the air outlet 201, part of the crosswind airflow is blocked by the baffle plate and converted into airflow transported along the air guide channel 243 between the air guide sections 242 along the second direction. It is directly transported to the fins of the heat exchanger 300, which helps to reduce the formation of crosswind airflow and reduce noise.

[0075] In some embodiments of this application, the air guide assembly 240 is installed inside the air outlet 201, the first end of the air guide part 242 is fixed on the top wall 2011 or the bottom wall 2012 of the air outlet 201, and the second end of the air guide part 242 is a certain length away from the bottom wall 2012 or the top wall 2011 of the air outlet 201.

[0076] Specifically, when the first end of each air guide 242 is fixed on the top wall 2011 of the air outlet 201, the second end opposite to the first end of the air guide 242 extends towards the bottom wall 2012, and the second end is at a certain height from the bottom wall 2012 of the air outlet 201. This guides the airflow from the upper part of the air outlet 201, reducing the crosswind volume to a certain extent without affecting the airflow output range, thereby reducing noise.

[0077] When the first end of the air guide 242 is fixed on the bottom wall 2012 of the air outlet 201, the second end of the air guide 242 extends towards the top wall 2011, and the second end is at a certain height from the top wall 2011. That is, the air guide assembly 240 is mainly set at the lower position of the air outlet 201 to guide the airflow from the lower part of the air outlet 201. Without affecting the airflow output range, it reduces the crosswind volume to a certain extent, thereby reducing noise.

[0078] The first end of the air guide 242 is fixed to the volute by fasteners or other fixing methods. For example, a through hole is opened at the corresponding position of the volute, a threaded hole is opened on the end face of the first end of the air guide 242, and fasteners such as fastening screws pass through the corresponding through hole from the outside of the volute and are threadedly connected to the first end of the air guide 242.

[0079] In some embodiments of this application, the air guide assembly 240 further includes a fixing part 241, which is connected to the top wall 2011 or the bottom wall 2012 of the air outlet 201, and the air guide part 242 is disposed on the fixing part 241.

[0080] In some embodiments of this application, the fixing part 241 and the air guide part 242 correspond one-to-one. That is, the number of fixing parts 241 and air guide parts 242 is the same. The fixing parts 241 and the air guide parts 242 are generally T-shaped or L-shaped. Each air guide part 242 is connected to the top wall 2011 or bottom wall 2012 of the air outlet 201 through the corresponding fixing part 241.

[0081] Alternatively, refer to the specific details. Figures 3-6 Each air guide 242 is spaced apart on the fixed part 241. The fixed part 241 is an integral structure. The air guides 242 are spaced apart on the fixed part 241 along the first direction. Each air guide 242 is fixed to the top wall 2011 or bottom wall 2012 of the air outlet 201 through the fixed part 241.

[0082] In some embodiments of this application, each air guide 242 and the fixing part 241 are arranged at an angle, and the angle α between the air guide 242 and the fixing part 241 satisfies: 30°≤α≤90°.

[0083] Preferably, the angle α between the air guide portion 242 and the fixing portion 241 is 90 degrees, that is, the air guide portion 242 is perpendicular to the fixing portion 241, and the extension direction of the air guide channel 243 is parallel to the second direction.

[0084] In some embodiments of this application, the overall shape of the air guide 242 is polygonal, such as a triangle, quadrilateral, or trapezoidal structure.

[0085] Alternatively, the second end of the air guide 242 can also be designed as an arc shape, with the arc edge making the airflow smoother.

[0086] In some embodiments of this application, the volute includes a first volute 210 and a second volute 220, with the first volute 210 located above the second volute 220, and an inner cavity formed between the first volute 210 and the second volute 220. The first volute 210 and the second volute 220 are detachably connected.

[0087] refer to Figures 7-11 Both the first volute 210 and the second volute 220 are shell structures. An upper cover plate 211 is formed on the first volute 210, and a lower cover plate 221 is formed on the second volute 220. An air outlet 201 is formed between the upper cover plate 211 and the lower cover plate 221.

[0088] The top wall 2011 is formed on the upper cover plate 211, and the bottom wall 2012 is formed on the lower cover plate 221. The upper side plates on both sides of the upper cover plate 211 and the lower side plates on both sides of the lower cover plate 221 are connected to form the side wall of the air outlet 201.

[0089] In some embodiments of this application, a support frame 120 is provided in the mounting cavity, and an mounting opening is formed on the support frame 120. The volute is detachably connected to the support frame 120, and the upper cover plate 211 and the lower cover plate 221 extend through the mounting opening to the other side of the support frame 120.

[0090] In some embodiments of this application, a first connecting edge 212 extending outward is provided on the outer wall of the first volute 210, and a second connecting edge 222 is provided at the corresponding position of the second volute 220. Fixing holes are formed on the first connecting edge 212 and the second connecting edge 222, and the first connecting edge 212 and the second connecting edge 222 are detachably connected to the support frame 120 by fasteners.

[0091] Specifically, connection holes are provided around the mounting opening of the support frame 120. The fixing holes and connection holes correspond one-to-one. Fasteners such as bolts pass through the corresponding fixing holes and connection holes to fix the volute onto the support frame 120.

[0092] In some embodiments of this application, a mating portion 2121 is formed on the first connecting outer edge 212 or the second connecting outer edge 222, and a mating hole 2221 is formed on the second connecting outer edge 222 or the first connecting outer edge 212. The mating portion 2121 and the mating hole 2221 are connected to achieve a detachable connection between the second connecting outer edge 222 and the first connecting outer edge 212.

[0093] In some embodiments of this application, a positioning protrusion 2122 is formed on the docking portion 2121, the docking hole 2221 is an elongated hole, and the positioning protrusion 2122 is connected to the docking hole 2221.

[0094] In some specific embodiments, the docking portion 2121 is formed on the first volute 210, specifically located at the two lower ends of the first connecting outer edge 212 near the second volute 220. The docking portion 2121 extends backward or forward relative to the first connecting outer edge 212, and a docking surface is formed on the docking portion 2121. The second connecting outer edge 222 is in contact with the docking surface. In the connected state, the front and rear sides of the first connecting outer edge 212 and the second connecting outer edge 222 are flush.

[0095] The positioning protrusion 2122 is formed on the mating surface and extends toward the second connecting outer edge 222.

[0096] During installation, the positioning protrusions 2122 on both sides are simultaneously inserted into the mating holes 2221 on the outer edge of the second connection 222 to achieve the positioning connection of the first volute 210 and the second volute 220.

[0097] After the first volute 210 and the second volute 220 are positioned, they are then fixed by a snap-fit ​​connection.

[0098] The elongated shape of the mating hole 2221 ensures the connection between the positioning protrusion 2122 and the mating hole 2221 even when there are machining errors in the first volute 210 and the second volute 220, and also helps to meet the operational requirements of snap-fit ​​connection.

[0099] Of course, the mating part 2121 can also be formed on the second connecting outer edge 222, and correspondingly, the mating hole 2221 is formed on the first connecting outer edge 212.

[0100] Specifically, in some embodiments of this application, a snap-fit ​​portion 213 is formed on the first volute 210 or the second volute 220, and a snap-fit ​​portion 223 corresponding to the snap-fit ​​portion 213 is formed on the second volute 220 or the first volute 210, and the first volute 210 and the second volute 220 are detachably connected by snap-fit.

[0101] The snap-fit ​​portion 213 and the latching portion 223 are symmetrically arranged on both sides of the first volute 210 or the second volute 220 to achieve a stable connection between the first volute 210 and the second volute 220.

[0102] The snap-fit ​​portion 213 is specifically formed on both sides of the first volute 210 or the second volute 220, and a snap-fit ​​groove 2131 is formed on the snap-fit ​​protrusion. The snap-fit ​​portion 223 is formed on the second volute 220 or the first volute 210, and a snap-fit ​​end 2231 is formed on the snap-fit ​​portion 223. An inclined transition surface is also formed on the snap-fit ​​end 2231.

[0103] During installation, under the action of the transition surface, the snap-fit ​​parts 223 on both sides pass through the snap-fit ​​slots 2131 on the corresponding snap-fit ​​parts 213. After the snap-fit ​​end 2231 passes through the snap-fit ​​slots 2131, it snaps onto the snap-fit ​​part 213, thereby realizing the connection and fixation of the first volute 210 and the second volute 220.

[0104] Compared with the prior art, the advantages and positive effects of this utility model are:

[0105] The indoor unit of the air conditioner involved in this application has an air guide assembly 240 provided in the air outlet 201 of the fan assembly 200. The air guide assembly 240 includes at least one air guide section 242, which forms an air guide channel 243 in the air outlet 201 along the lateral direction. When the airflow is output from the air outlet 201, the air guide channel 243 can reduce the crosswind component to a certain extent, thereby reducing the generation of vortices, thus significantly reducing or eliminating fin noise and improving the user experience.

[0106] In addition, one end of the first volute 210 and the second volute 220 is connected to the docking hole 2221 through the positioning protrusion 2122 on the docking part 2121, and the other end is detachably connected through the snap-fit ​​part 213 and the snap-fit ​​part 223, which makes installation convenient and quick and assembly efficient.

[0107] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0108] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0109] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing component having an internal mounting cavity formed therein, and an air inlet and an air outlet formed on the housing component; A fan assembly includes a volute, an impeller, and a drive motor. The volute is disposed in the mounting cavity, and an inner cavity is formed inside the volute. The impeller is disposed in the inner cavity of the volute and is connected to the output end of the drive motor. An air inlet and an air outlet are formed on the volute. A heat exchanger is disposed in the mounting cavity, corresponding to the air outlet position of the fan assembly; An air guide assembly is disposed within the air outlet or between the air outlet and the heat exchanger. The air guide assembly includes at least one air guide section that extends along the airflow delivery direction.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The air guide assembly is installed inside the air outlet. The first end of the air guide is fixed to the top or bottom wall of the air outlet, and the second end of the air guide is a certain distance from the bottom or top wall of the air outlet.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The air guide assembly also includes a fixing part, which is connected to the top or bottom wall of the air outlet, and the air guide part is disposed on the fixing part.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, Each of the air guides and the fixing parts are arranged at an angle, and the angle α between the air guides and the fixing parts satisfies: 30°≤α≤90°.

5. The indoor unit of the air conditioner according to claim 2, characterized in that, The overall shape of the air guide is polygonal, or the second end of the air guide is arc-shaped.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, The volute includes a first volute and a second volute, with the first volute located above the second volute. The inner cavity of the volute is formed between the first volute and the second volute. An upper cover plate is formed on the first volute, and a lower cover plate is formed on the second volute. The air outlet is formed between the upper cover plate and the lower cover plate.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, A support frame is provided in the mounting cavity, and the support frame is located on the side of the heat exchanger away from the output end; an installation port is formed on the support frame, the volute is detachably connected to the support frame, and the upper cover plate and the lower cover plate extend through the installation port to the other side of the support frame.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The first volute has an outwardly extending first connecting edge on its outer wall, and the second volute has a corresponding second connecting edge. Fixing holes are formed on the first and second connecting edges, and the first and second connecting edges are detachably connected to the support frame by fasteners.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, A mating portion is formed on the first connecting outer edge or the second connecting outer edge, and a mating hole is formed on the second connecting outer edge or the first connecting outer edge. The mating portion and the mating hole are connected to achieve a detachable connection between the second connecting outer edge and the first connecting outer edge. A positioning protrusion is formed on the docking part, and the docking hole is an elongated hole, with the positioning protrusion connected to the docking hole.

10. The indoor unit of the air conditioner according to claim 6, characterized in that, The first volute or the second volute is further provided with a snap-fit ​​portion, and the second volute or the first volute is provided with a snap-fit ​​portion corresponding to the snap-fit ​​portion. The first volute and the second volute are detachably connected by snap-fit.

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