Air conditioner indoor unit and air conditioner

Abstract

The utility model provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a machine shell, an axial flow wind wheel and a cross flow wind wheel. A heat exchange air duct and an axial flow air duct are defined in the machine shell, the heat exchange air duct is connected to a heat exchange air outlet formed in the machine shell, and the axial flow air duct is connected to an axial flow air outlet formed in the machine shell. The axial flow wind wheel is arranged in the axial flow wind channel. And the cross-flow wind wheel is arranged in the heat exchange air duct. The heat exchange air duct is provided with an air supply section located between the heat exchange air outlet and the cross-flow wind wheel, a first axial flow air inlet connected with the axial flow air duct is formed in the air duct wall of the air supply section, and the opening area of the first axial flow air inlet is smaller than the opening area of the end, away from the heat exchange air outlet, of the air supply section. The axial flow air outlet and the heat exchange air outlet can blow heat exchange hot air into a room at the same time, and the air supply section can enter the heat exchange hot air with large wind power so as to accelerate the heat exchange efficiency of the indoor space. Due to the fact that the axial flow air outlet and the heat exchange air outlet discharge air at the same time, the air pressure of heat exchange air is reduced, and user experience is improved.

Description

Technical Field

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

[0002] Air conditioners or indoor air conditioners in indoor environments usually adjust indoor environmental factors such as indoor temperature, humidity, and air quality by means of air exchange. However, in order to meet the needs of users in the whole house or a larger area, existing air conditioners or indoor air conditioners can only achieve this by increasing the air supply intensity of cold air or hot air. That is, since the wind power source of existing air conditioners or indoor air conditioners is a single heat exchange air, long-distance air supply can only be achieved by increasing the wind power of the heat exchange air.

[0003] However, existing air conditioners or indoor units of air conditioners mostly use cross-flow fans for indoor air outlet to obtain a larger air outlet area. As the wind force of the indoor heat exchange air increases, the cross-flow fan will still disperse the enhanced wind force over a larger air outlet area, resulting in the indoor heat exchange air having either an unobvious effect or too high wind pressure after the wind force is enhanced, both of which will bring a bad user experience. Utility Model Content

[0004] In view of the above problems, the present utility model is proposed to provide an air conditioner indoor unit and an air conditioner that overcomes the above problems or at least partially solves the above problems, and can solve the problem that the indoor heat exchange air delivered by the cross-flow fan is not delivered far enough or the wind pressure is too high, thereby achieving the purpose of improving user experience.

[0005] Specifically, the utility model provides an air conditioner indoor unit of an air conditioner, comprising:

[0006] A casing defines a heat exchange air duct and an axial flow air duct in the casing, the heat exchange air duct is connected to a heat exchange air outlet formed on the casing, and the axial flow air duct is connected to the axial flow air outlet formed on the casing.

[0007] An axial flow wind wheel is arranged in the axial flow air duct.

[0008] A crossflow fan wheel, wherein the crossflow fan wheel is arranged in the heat exchange air duct. And,

[0009] The heat exchange air duct has an air supply section between the heat exchange air outlet and the cross-flow wind wheel, and a first axial flow air inlet connected to the axial flow air duct is formed on the air duct wall of the air supply section, and the opening area of ​​the first axial flow air inlet is smaller than the opening area of ​​the end of the air supply section away from the heat exchange air outlet.

[0010] Optionally, an opening area of ​​the first axial air inlet is equal to 0.5-0.75 times an opening area of ​​an end of the air supply section away from the heat exchange air outlet.

[0011] Optionally, the air supply section extends vertically, and in the horizontal direction, the air supply section is at least located on one side of the axial flow air duct.

[0012] The first axial air inlet is located on the vertical air duct wall of the air supply section close to the axial air duct, and the first axial air inlet extends vertically, and the opening width of the first axial air inlet in the horizontal direction is smaller than the opening width of the air supply section at one end away from the heat exchange outlet.

[0013] Optionally, the housing comprises:

[0014] A volute tongue and a volute case, wherein the volute tongue and the volute case are located between the heat exchange air outlet and the crossflow impeller to define the air supply section. Furthermore, the volute case includes a shell opposite to the volute tongue, and the volute tongue has a diffuser section opposite to the shell and a guide section near one end of the crossflow impeller, and the guide section is bent in a direction away from the shell. And,

[0015] In the plane where the guide section is located or in the tangent plane, the cross-sectional area of ​​the air supply section is the opening area of ​​the end of the air supply section away from the heat exchange air outlet.

[0016] Optionally, the first axial air inlet is located on the volute, and is located on a side of the plane or tangent plane where the guide section is located, close to the heat exchange air outlet.

[0017] Optionally, the axial flow air duct is also connected to a second axial flow air inlet and / or a third axial flow air inlet formed on the housing, wherein the second axial flow air inlet is configured to flow indoor air into the axial flow air duct, and the third axial flow air inlet is configured to connect to a filter assembly and / or a fresh air duct for flowing outdoor air into the axial flow air duct.

[0018] Optionally, the first axial air inlet is in a grid or mesh shape.

[0019] Optionally, in the horizontal direction, the heat exchange air duct is at least on one side of the axial flow air duct. Furthermore, the first axial flow air inlet is arranged vertically, and an air guide plate is arranged on the first axial flow air inlet, and the front side or the rear side of the air guide plate is connected to the housing by rotation around the vertical axis, so as to open the first axial flow air inlet when the air guide plate is turned over into the axial flow air duct. Alternatively, the first axial flow air inlet is closed when the air guide plate falls back onto the air duct wall of the heat exchange air duct.

[0020] Optionally, there are two heat exchange air ducts, both of which extend vertically, and in the horizontal direction, the two heat exchange air ducts gradually close together from front to back to define the axial flow air duct between relatively separated parts at the front ends of the two heat exchange air ducts.

[0021] The first axial air inlet is located on one side or both sides of the axial air duct.

[0022] A second axial flow air inlet connected to the axial flow air duct is formed on the top of the housing.

[0023] Optionally, a third axial flow air inlet connected to the axial flow air duct is formed in the housing, and the third axial flow air inlet is located at the bottom of the axial flow air duct.

[0024] The utility model also provides an air conditioner, comprising:

[0025] The compressor unit is arranged indoors or outdoors to perform heat exchange with the outdoor environment.

[0026] An air conditioner indoor unit as described in any one of the above items, wherein the air conditioner indoor unit is connected to the compressor unit.

[0027] In the indoor unit of the air conditioner and the air conditioner of the utility model, a first axial flow air inlet is arranged between the heat exchange air duct and the axial flow air duct, so that a part of the heat exchange air can be blown out from the axial flow air outlet, that is, the axial flow air outlet and the heat exchange air outlet can blow the heat exchange air into the room at the same time, so as to increase the air supply distance of the heat exchange air and accelerate the heat exchange efficiency of the indoor space. Since the axial flow air outlet and the heat exchange air outlet discharge air at the same time, the wind pressure of the heat exchange air is reduced, and the user experience is improved.

[0028] At the same time, since the cross-section of the first axial air inlet is smaller than the cross-section of the crossflow impeller air supply port of the air supply section, the heat exchange air volume entering the first axial air inlet is smaller than the heat exchange air volume blown out from the heat exchange air outlet, so that the deviation of the heat exchange air in the main air supply direction of the air supply section is smaller, and the main air supply direction of the heat exchange air blown out from the heat exchange air outlet remains unchanged.

[0029] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0032] Figure 2 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0033] Figure 3 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0034] Figure 4 is a schematic front view of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0035] Figure 5 It is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the utility model.

[0036] List of reference numerals: 100, casing; 110, volute; 111, volute tongue; 1111, expansion section; 1112, guide section; 112, casing; 200, crossflow fan; 210, heat exchange air duct; 211, air supply section; 220, heat exchange air outlet; 230, crossflow fan air supply outlet; 300, axial flow fan; 310, axial flow air duct; 320, axial flow air outlet; 330, first axial flow air inlet; 340, second axial flow air inlet; 350, third axial flow air inlet; 400, air guide plate; 500, fresh air channel. DETAILED DESCRIPTION

[0037] Refer to the following Figures 1 to 5 To describe the indoor unit of the air conditioner and the air conditioner of the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0038] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0039] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] Figure 1 is a schematic cross-sectional view of an air conditioner indoor unit according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figures 2 to 5The embodiment of the utility model provides an indoor unit of an air conditioner, comprising a housing 100, an axial flow fan wheel 300 and a cross flow fan wheel 200. A heat exchange air duct 210 and an axial flow air duct 310 are defined in the housing 100. The heat exchange air duct 210 is connected to a heat exchange air outlet 220 formed on the housing 100, and the axial flow air duct 310 is connected to an axial flow air outlet 320 formed on the housing 100. The axial flow fan wheel 300 is disposed in the axial flow air duct 310. The cross flow fan wheel 200 is disposed in the heat exchange air duct 210. In addition, the heat exchange air duct 210 has an air supply section 211 located between the heat exchange air outlet 220 and the cross-flow wind wheel 200, and a first axial flow air inlet 330 connected to the axial flow air duct 310 is formed on the air duct wall of the air supply section 211, and the opening area of ​​the first axial flow air inlet 330 is smaller than the opening area of ​​the end of the air supply section 211 away from the heat exchange air outlet 220.

[0042] In this embodiment, the crossflow wind wheel 200 is located in the heat exchange air duct 210 and can be used to blow out the crossflow wind for heat exchange. The axial flow air outlet 320 is arranged on the front surface of the housing 100, so that the axial flow wind wheel 300 can blow out the axial flow wind forward from the axial flow air outlet 320. The axial flow air duct 310 can take in the heat exchange air through the first axial flow air inlet 330, so that a part of the heat exchange air can be blown out from the axial flow air outlet, that is, the axial flow air outlet and the heat exchange air outlet can blow the heat exchange air into the room at the same time, so as to increase the air supply distance of the heat exchange air and accelerate the heat exchange efficiency of the indoor space.

[0043] At the same time, since the cross-section of the first axial air inlet 330 is smaller than the cross-section of the cross-flow impeller air outlet 230 of the air supply section 211, the heat exchange air volume entering the first axial air inlet 330 is smaller than the heat exchange air volume blown out from the heat exchange air outlet 220, so that the deviation of the heat exchange air in the main air supply direction of the air supply section 211 is small, and the main air supply direction of the heat exchange air blown out from the heat exchange air outlet 220 remains unchanged. Among them, the cross-flow impeller air outlet 230 is an opening at one end of the air supply section 211 away from the heat exchange air outlet 220.

[0044] The crossflow impeller air outlet 230 introduces heat exchange air with a relatively strong wind force, and the axial flow air outlet 320 and the heat exchange air outlet 220 can simultaneously blow heat exchange air into the room to increase the heat exchange efficiency of the indoor space. Since the axial flow air outlet 320 and the heat exchange air outlet 220 discharge air at the same time, the wind pressure of the heat exchange air is reduced, thereby improving the user experience.

[0045] Preferably, in some embodiments of the present invention, Figures 1 to 3 As shown, the opening area of ​​the first axial air inlet 330 is equal to 0.5-0.75 times the opening area of ​​the end of the air supply section 211 away from the heat exchange air outlet 220.

[0046] In this embodiment, the first axial air inlet 330 is 0.5-0.75 times the size of the crossflow wind wheel air supply port 230, which ensures that the heat exchange air volume entering from the first axial air inlet 330 is less than the heat exchange air volume blown out from the heat exchange air outlet 220, and the main air supply direction of the heat exchange air blown out from the heat exchange air outlet 220 remains unchanged, while the heat exchange air volume that can enter the first axial air inlet 330 is increased.

[0047] In some embodiments of the present invention, Figure 2 As shown, the air supply section 211 extends vertically, and in the horizontal direction, the air supply section 211 is at least located on one side of the axial air duct 310. And the first axial air inlet 330 is located on the vertical air duct wall of the air supply section 211 close to the axial air duct 310, and the first axial air inlet 330 extends vertically, and the opening width L2 of the first axial air inlet 330 in the horizontal direction is smaller than the opening width L1 of the end of the air supply section 211 away from the heat exchange air outlet 220 in the horizontal direction.

[0048] In this embodiment, the air supply section 211 extends vertically, and the crossflow wind wheel 200 is vertically arranged in the heat exchange air duct 210 and is located at the rear end of the air supply section 211. One end of the first axial flow air inlet 330 in the horizontal direction is end A, and the other end is end B. The distance between end A and end B is L2. The crossflow wind wheel 200 introduces the heat exchange air into the air supply section 211, and a small part of the heat exchange air enters the axial flow channel through the vertically extending first axial flow air inlet 330, and most of the heat exchange air is blown out from the heat exchange air outlet 220 along the air supply section 211. The first axial flow air inlet 330 is arranged vertically, which can reduce the resistance to the heat exchange air and is conducive to the heat exchange air flowing into the first axial flow air inlet 330.

[0049] Furthermore, since the opening width L2 of the first axial air inlet 330 in the horizontal direction is smaller than the opening width L1 of the air supply section 211 at the end away from the heat exchange air outlet 220, that is, the opening area of ​​the first axial air inlet 330 is smaller than the opening area of ​​the cross-flow wind wheel air supply port 230, the heat exchange air volume entering the first axial air inlet 330 is smaller than the heat exchange air volume blown out from the heat exchange air outlet 220, so that the deviation of the heat exchange air in the main air supply direction of the air supply section 211 is small, and the main air supply direction of the heat exchange air blown out from the heat exchange air outlet 220 remains unchanged.

[0050] In some embodiments of the utility model, the opening height of the first axial air inlet 330 in the vertical direction is equal to the vertical extension height of the air supply section 211, so that the heat exchange air of the air supply section 211 is evenly delivered into the axial air duct 310 through the first axial air inlet 330, and then blown out from the axial air outlet 320.

[0051] In some embodiments of the present invention, Figures 1 to 3As shown, the casing 100 includes a volute 110 and a volute tongue 111, and the volute 110 and the volute tongue 111 are located between the heat exchange outlet 220 and the crossflow impeller 200 to define an air supply section 211. In addition, the volute 110 includes a shell 112 opposite to the volute tongue 111, and the volute tongue 111 has a diffuser section 1111 opposite to the shell 112 and a guide section 1112 close to one end of the crossflow impeller 200, and the guide section 1112 is bent in a direction away from the shell 112. In addition, in the plane or tangent plane where the guide section 1112 is located, the cross-sectional area of ​​the air supply section 211 is the opening area of ​​the end of the air supply section 211 away from the heat exchange outlet 220. That is, in the plane or tangent plane where the guide section 1112 is located, the cross-sectional area of ​​the air supply section 211 is the cross-sectional area of ​​the crossflow impeller air supply outlet 230.

[0052] In this embodiment, the volute tongue 111 is a side wall of the air supply section 211 away from the axial air duct 310, and the rear end of the diffuser section 1111 is connected to the front end of the guide section 1112. The guide section 1112 is bent in a direction away from the housing 112, that is, bent toward the side and rear of the diffuser section 1111, so as to guide the heat exchange air blown out by the cross flow fan forward to the air supply section 211.

[0053] Furthermore, if Figure 2 As shown, the front end of the diffuser section 1111 extends to the side wall of the casing 100, and the front end of the shell 112 extends to the front wall of the casing 100, so that the wind flowing out of the cross-flow air duct can blow to the front as well as the side of the casing 100, thereby increasing the air supply angle of the indoor unit of the air conditioner and improving the comfort of the air outlet of the indoor unit of the air conditioner.

[0054] In some embodiments of the present invention, Figure 1 As shown, the first axial air inlet 330 is located on the volute 110 and is located on a side of the plane or tangent plane where the guide section 1112 is located, close to the heat exchange air outlet 220 .

[0055] In this embodiment, the first axial air inlet 330 is located on a side of the crossflow impeller air supply port 230 close to the heat exchange air outlet 220 to prevent the guide section 1112 from directly introducing wind into the first axial air inlet 330 .

[0056] In some embodiments of the present invention, Figure 5 As shown, the axial flow air duct 310 is also connected to a second axial flow air inlet 340 formed on the housing 100 , and the second axial flow air inlet 340 is configured to flow indoor air into the axial flow air duct 310 .

[0057] In this embodiment, the axial flow wind wheel 300 can be used to blow out axial flow wind close to room temperature, and the cross flow wind wheel 200 can be used to blow out cross flow wind for heat exchange wind. The axial flow wind close to room temperature in the axial flow wind duct 310 is blown out forward through the axial flow air outlet 320, and the cross flow wind in the heat exchange wind duct 210 is blown out forward through the heat exchange air outlet 220, and mixed at the front side of the housing 100, so that the mixed wind blown out is closer to room temperature, avoiding the heat exchange wind blowing directly on the user, and improving the user's experience.

[0058] In some embodiments of the present invention, Figure 5 As shown, the axial flow air duct 310 is also connected to a third axial flow air inlet 350 formed on the housing 100 , and the third axial flow air inlet 350 is configured to be connected to a fresh air duct for flowing outdoor air into the axial flow air duct 310 .

[0059] In this embodiment, outdoor fresh air enters from the fresh air channel 500, then enters the axial flow air duct 310 through the third axial flow air inlet 350, and is then blown into the room from the axial flow air outlet 320, thereby improving the indoor air quality and being beneficial to the user's health.

[0060] In some embodiments of the present invention, the third axial air inlet 350 is configured to be connected to a filter assembly.

[0061] In this embodiment, the outdoor wind or indoor wind passes through the filter device and then enters the axial flow air duct 310 through the third axial flow air inlet 350, and then is blown out from the axial flow air outlet 320. The airflow passing through the filter device is purified air, which can improve the indoor air quality after being blown into the room, which is beneficial to the health of the user.

[0062] In some embodiments of the present invention, Figure 1 As shown, the first axial air inlet 330 is in a grid shape.

[0063] In this embodiment, the first axial air inlet 330 is configured to be grille-shaped. On the one hand, the heat exchange air passing through the first axial air inlet 330 is rectified to reduce turbulence. On the other hand, it can effectively prevent insects or other debris from being sucked in and damaging the axial wind wheel 300.

[0064] In some other embodiments of the present invention, the first axial air inlet 330 may also be in a grid shape.

[0065] In some embodiments of the present invention, Figures 2 to 3As shown, in the horizontal direction, the heat exchange air duct 210 is at least on one side of the axial flow air duct 310. In addition, the first axial flow air inlet 330 is vertically arranged, and a wind guide plate 400 is arranged on the first axial flow air inlet 330. The front side or the rear side of the wind guide plate 400 is connected to the housing 100 by rotating around the vertical axis, so as to open the first axial flow air inlet 330 when the wind guide plate 400 is turned over into the axial flow air duct 310. Alternatively, when the wind guide plate 400 falls back onto the air duct wall of the heat exchange air duct 210, the first axial flow air inlet 330 is closed.

[0066] In this embodiment, taking the case where only the axial flow wind wheel 300 is working and the crossflow wind wheel 200 is not working as an example, the air guide plate 400 is opened, and the heat exchange air passing through the heat exchange air duct 210 enters the axial flow air duct 310 from the first axial flow air inlet 330 and is mixed with the normal temperature air entering from the second axial flow air inlet 340 and / or the third axial flow air inlet 350, and then blown out from the axial flow air outlet 320. At this time, the outlet air temperature of the air conditioner indoor unit is closer to the indoor temperature than the heat exchange air that is not mixed with the indoor air, so that the user feels more comfortable after blowing the air. The air guide plate 400 is closed, so that the first axial flow air inlet 330 is covered. Only the normal temperature air entering the axial flow air duct 310 from the second axial flow air inlet 340 and / or the third axial flow air inlet 350 is blown out from the axial flow air outlet 320. At this time, the air outlet of the air conditioner indoor unit is normal temperature air. The air conditioner indoor unit has a variety of air outlet modes to meet the diverse blowing needs of users.

[0067] Of course, in other embodiments of the present invention, only the crossflow impeller 200 may work, and the axial flow impeller 300 may not work. Alternatively, the crossflow impeller 200 and the axial flow impeller 300 may work simultaneously.

[0068] Further, when the air guide plate 400 falls back onto the air duct wall of the heat exchange air duct 210 , the first axial flow air inlet 330 is closed, and the heat exchange air duct 210 and the axial flow air duct 310 are spaced apart.

[0069] In this embodiment, since the axial flow air duct 310 and the heat exchange air duct 210 are independent of each other, the axial flow air outlet 320 and the heat exchange air outlet 220 can both discharge air independently. Both the heat exchange air outlet 220 and the axial flow air outlet 320 can discharge air in different directions to meet the diverse blowing needs of users.

[0070] In some embodiments of the present invention, Figure 1 As shown, the front side of the air guide plate 400 is connected to the housing 100 by rotating around a vertical axis. When the first axial air inlet 330 is opened, the air guide plate 400 is turned over into the axial air duct 310.

[0071] In this embodiment, one end of the wind guide plate 400 that is away from the rotation center of the wind guide plate 400 after flipping points to the axial flow wind wheel 300, so that the heat exchange wind entering from the first axial flow air inlet 330 is not blocked by the wind guide plate 400, and the wind guide plate 400 can also guide the heat exchange wind to the axial flow wind wheel 300, so that the heat exchange wind is easier to flow out from the axial flow air duct 310, reducing the loss of the heat exchange wind.

[0072] In other embodiments of the present invention, Figure 2 As shown, the rear side of the air guide plate 400 is connected to the housing 100 by rotating around a vertical axis. When the first axial air inlet 330 is opened, the air guide plate 400 is turned over into the axial air duct 310 .

[0073] In this embodiment, one end of the wind guide plate 400 that is away from the rotation center of the wind guide plate 400 after flipping points to the axial flow wind wheel 300, so that the heat exchange wind entering from the first axial flow air inlet 330 is not blocked by the wind guide plate 400, and the wind guide plate 400 can also guide the heat exchange wind to the axial flow wind wheel 300, so that the heat exchange wind is easier to flow out from the axial flow air duct 310, reducing the loss of the heat exchange wind.

[0074] In some embodiments of the present invention, Figures 1 to 3 As shown, there are two heat exchange air ducts 210, both of which extend vertically, and in the horizontal direction, the two heat exchange air ducts 210 gradually close from front to back to define an axial flow air duct 310 between the relatively separated parts at the front ends of the two heat exchange air ducts 210. The first axial flow air inlet 330 is located on one side or both sides of the axial flow air duct 310. Figure 5 As shown, a second axial air inlet 340 connected to the axial air duct 310 is formed at the top of the housing 100. Alternatively, a third axial air inlet 350 connected to the axial air duct 310 is formed in the housing 100 and is located at the bottom of the axial air duct 310.

[0075] In this embodiment, since the second axial air inlet 340 is located on the upper side of the heat exchange air duct 210 and the third axial air inlet 350 is located on the lower side of the heat exchange air duct 210, the interference between the axial flow air duct 310 and the heat exchange air duct 210 is reduced, and the components within the axial flow air duct 310 and the heat exchange air duct 210 can be made more compact, thereby making the arrangement within the casing 100 more compact and saving space inside the casing 100.

[0076] In some embodiments of the present invention, Figure 4 As shown, the axial air outlet 320 is circular.

[0077] In this embodiment, the circular axial flow air outlet 320 matches the axial flow wind wheel 300, and the axial flow wind blown out through the axial flow wind wheel 300 is spiral-shaped. The circular axial flow air outlet 320 has a small and uniform resistance to the airflow during the flow of the axial flow wind, so that the blown axial flow wind is relatively uniform.

[0078] Of course, in other embodiments of the present invention, the axial air outlet 320 may also be in other shapes such as a rectangle or a triangle.

[0079] In some embodiments of the present invention, Figure 4 As shown, an air outlet grille is provided at the axial air outlet 320 .

[0080] In this embodiment, the axial flow fan wheel 300 is arranged at the axial flow air outlet 320, which is dangerous. The air outlet grille can protect the user. Moreover, the air outlet grille arranged at the axial flow air outlet 320 can also block dust and debris to ensure the life of the air conditioner.

[0081] In some other embodiments of the present invention, a swing blade is provided at the axial flow air outlet 320. The swing blade guides the air blown out of the axial flow air outlet 320 to meet the diverse blowing needs of the user.

[0082] In some embodiments of the utility model, the swing blades can be arranged vertically to guide the air left and right. A vertical air guide plate is arranged at the heat exchange air outlet 220. The vertical swing blades cooperate with the vertical air guide plate to fully mix the normal temperature air and the heat exchange air, thereby improving the user's comfort. Moreover, each set of swing blades and air guide plates can be controlled separately to adjust the air outlet angle required by the user, thereby meeting the user's diverse blowing needs.

[0083] In other embodiments of the present invention, the swing blades may also be arranged horizontally to guide the wind upward and downward.

[0084] Alternatively, a horizontal air guide plate is provided at the heat exchange air outlet 220 .

[0085] In some other embodiments of the present invention, the axial flow wind wheel 300 and the axial flow motor are an integrated fan, and the axial flow motor is fixedly connected to the rear side of the axial flow wind wheel 300 .

[0086] In this embodiment, an integrated fan is used to make the structure inside the air conditioner indoor unit compact, thereby reducing the production cost of the air conditioner.

[0087] The utility model also provides an air conditioner, comprising a compressor unit and an air conditioner indoor unit in any of the above embodiments. The compressor unit is arranged indoors or outdoors to perform heat exchange with the outdoor environment. The air conditioner indoor unit is connected to the compressor unit.

[0088] In this embodiment, the compressor unit performs heat exchange with the outdoor environment, so that the indoor unit of the air conditioner can blow out heat exchange air. The crossflow fan 200 is located in the heat exchange air duct 210, and can be used to blow out the heat exchange crossflow air. The wind speed of the crossflow air blown out by the crossflow fan 200 is relatively high, so that the crossflow air can reach a farther distance. The axial flow fan 300 can be used to blow out the axial flow air forward. Since the air outlet area of ​​the axial flow air is large, the axial flow air is relatively soft. The axial flow air duct 310 can enter the heat exchange air through the first axial flow air inlet 330. Since the cross section of the first axial flow air inlet 330 is smaller than the cross section of the crossflow fan air supply port 230 of the air supply section 211, the heat exchange air volume entering the first axial flow air inlet 330 is smaller than the heat exchange air volume blown out from the heat exchange air outlet 220, so that the deviation of the heat exchange air in the main air supply direction of the air supply section 211 is small, and the main air supply direction of the heat exchange air blown out from the heat exchange air outlet 220 remains unchanged. The crossflow impeller air supply port 230 is an opening of the air supply section 211 at one end away from the heat exchange air outlet 220 .

[0089] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner, characterized in that: include: A casing, wherein a heat exchange air duct and an axial flow air duct are defined in the casing, the heat exchange air duct is connected to a heat exchange air outlet formed on the casing, and the axial flow air duct is connected to the axial flow air outlet formed on the casing; An axial flow wind wheel, wherein the axial flow wind wheel is arranged in the axial flow air duct; a crossflow fan, wherein the crossflow fan is arranged in the heat exchange air duct; and The heat exchange air duct has an air supply section between the heat exchange air outlet and the cross-flow wind wheel, and a first axial flow air inlet connected to the axial flow air duct is formed on the air duct wall of the air supply section, and the opening area of ​​the first axial flow air inlet is smaller than the opening area of ​​the end of the air supply section away from the heat exchange air outlet.

2. The air conditioner indoor unit according to claim 1, characterized in that: The opening area of ​​the first axial air inlet is equal to 0.5-0.75 times the opening area of ​​the end of the air supply section away from the heat exchange air outlet.

3. The air conditioner indoor unit according to claim 1, characterized in that: The air supply section extends vertically, and in the horizontal direction, the air supply section is located at least on one side of the axial flow air duct; and The first axial air inlet is located on the vertical air duct wall of the air supply section close to the axial air duct, and the first axial air inlet extends vertically, and the opening width of the first axial air inlet in the horizontal direction is smaller than the opening width of the air supply section at one end away from the heat exchange outlet.

4. The air conditioner indoor unit according to claim 1, characterized in that: The housing comprises: A volute tongue and a volute case, wherein the volute tongue and the volute case are located between the heat exchange air outlet and the crossflow impeller to define the air supply section; and the volute case includes a shell opposite to the volute tongue, the volute tongue has a diffuser section opposite to the shell and a guide section close to one end of the crossflow impeller, and the guide section is bent in a direction away from the shell; and, In the plane where the guide section is located or in the tangent plane, the cross-sectional area of ​​the air supply section is the opening area of ​​the end of the air supply section away from the heat exchange air outlet.

5. The air conditioner indoor unit according to claim 4, characterized in that: The first axial air inlet is located on the volute, and is located on a side of the plane or tangent plane where the guide section is located, close to the heat exchange air outlet.

6. The air conditioner indoor unit according to claim 1, characterized in that: The axial flow air duct is also connected to a second axial flow air inlet and / or a third axial flow air inlet formed on the casing; wherein, the second axial flow air inlet is configured to flow indoor air into the axial flow air duct, and the third axial flow air inlet is configured to connect to a filter component and / or a fresh air duct for flowing outdoor air into the axial flow air duct.

7. The air conditioner indoor unit according to claim 1, characterized in that: The first axial air inlet is in a grid or mesh shape.

8. The air conditioner indoor unit according to claim 1, characterized in that: In the horizontal direction, the heat exchange air duct is at least on one side of the axial flow air duct; and, the first axial flow air inlet is vertically arranged, and an air guide plate is arranged on the first axial flow air inlet, and the front or rear side of the air guide plate is rotatably connected to the casing around the vertical axis to facilitate opening the first axial flow air inlet when the air guide plate flips into the axial flow air duct; or, closing the first axial flow air inlet when the air guide plate falls back onto the air duct wall of the heat exchange air duct.

9. The air conditioner indoor unit according to claim 1, characterized in that: There are two heat exchange air ducts, both of which extend vertically, and in the horizontal direction, the two heat exchange air ducts gradually close from front to back to define the axial flow air duct between the relatively separated parts at the front ends of the two heat exchange air ducts; The first axial air inlet is located on one side or both sides of the axial air duct; as well as A second axial flow air inlet connected to the axial flow air duct is formed at the top of the casing; or a third axial flow air inlet connected to the axial flow air duct is formed in the casing, and the third axial flow air inlet is located at the bottom of the axial flow air duct.

10. An air conditioner, characterized in that: include: A compressor unit, wherein the compressor unit is arranged indoors or outdoors to perform heat exchange with an outdoor environment; The air conditioner indoor unit according to any one of claims 1 to 9, wherein the air conditioner indoor unit is connected to the compressor unit.

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