A hanging type air conditioner indoor unit

Abstract

The present application discloses a wall-mounted air-conditioning indoor unit, which relates to the technical field of air-conditioning; wherein the wall-mounted air-conditioning indoor unit comprises a casing, a heat exchanger, a heat exchange fan, a mounting plate and an air guide blade; the casing comprises an air inlet of the casing and an air outlet of the casing; the heat exchanger and the heat exchange fan are arranged inside the casing, the heat exchanger is arranged close to the air inlet of the casing, and the heat exchange fan is located on the leeward side of the heat exchanger; the mounting plate extends along the length direction of the casing and is mounted on the casing; the air guide blade is rotatably arranged at the air outlet of the casing; the rotation axis of the air guide blade intersects with the height direction and the length direction of the casing; the air guide blade comprises a head, a tail, a back and a belly; the head is located at an end of the air guide blade away from the inside of the casing; the tail is located at an end of the air guide blade facing the inside of the casing; the back and the belly are respectively connected to the head and the tail, the back is located on the side of the air guide blade facing the top of the casing; the belly is located on the side of the air guide blade facing the bottom of the casing; the concave portion is formed by the back being depressed toward the belly, and the concave portion is arranged close to the tail. The wall-mounted air conditioner indoor unit provided in the present application allows part of the airflow flowing through the windward side of the air guide blade to flow through the leeward side of the air guide blade through the recess to avoid condensation on the leeward side of the air guide blade due to contact between the indoor air and the leeward side of the air guide blade.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a wall-mounted air conditioning indoor unit. Background Art

[0002] As people's living standards improve, people have more and more requirements for air conditioner indoor units. At present, in some wall-mounted air conditioner indoor units, air guide blades are usually provided at the air outlet of the casing, and the air guide blades are rotatably arranged at the air outlet of the casing to guide air flow and prevent air from blowing directly on the human body.

[0003] When the air guide blade rotates, one side of the air guide blade will face the inside of the casing (i.e., the windward side of the air guide blade), while the other side of the air guide blade will face the outside of the casing (i.e., the leeward side of the air guide blade). When the air inside the casing is output from the casing air outlet, the air flows through the windward side of the air guide blade, and a negative pressure zone is easily formed on the leeward side of the air guide blade. The leeward side of the air guide blade is set to the outside of the casing, so the indoor air will be replenished to the negative pressure zone. When the indoor unit of the wall-mounted air conditioner is cooling, the temperature of the air guide blade decreases due to the contact between the windward side of the air guide blade and the cold air. When the indoor air with a relatively high temperature that is replenished in the negative pressure zone contacts the leeward side of the air guide blade, the indoor air is prone to condensation on the leeward side of the air guide blade. The condensation is prone to gather into water droplets. The water droplets fall on the ground or sofas and other places, which will have an adverse effect on users and reduce user experience.

[0004] In view of this, this application is filed. Utility Model Content

[0005] In response to the deficiencies in the related art, the present application provides a wall-mounted air-conditioning indoor unit, which allows the air output from the air outlet of the casing to flow through the leeward side of the air guide blade to avoid condensation on the leeward side of the air guide blade due to contact between the indoor air and the leeward side of the air guide blade.

[0006] The present application provides a wall-mounted air conditioner indoor unit, comprising:

[0007] The casing at least comprises a casing air inlet and a casing air outlet, wherein the casing air inlet is provided at the top of the casing, and the casing air outlet is provided at the bottom of the front side of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively;

[0008] A heat exchanger is disposed inside the casing, and the heat exchanger is disposed near the air inlet of the casing to exchange heat with the air passing therethrough;

[0009] A heat exchange fan is arranged inside the casing and located on the leeward side of the heat exchanger;

[0010] A mounting plate extending along the length direction of the casing and mounted on the casing;

[0011] An air guide blade is rotatably arranged at the air outlet of the casing, and is used to guide the flow of air outputted from the air outlet of the casing; the rotation axis of the air guide blade intersects with the height direction and the length direction of the casing; the air guide blade is mounted on the mounting plate and rotatably connected to a connecting rod, a plurality of air guide blades are provided, and at least some of the air guide blades are distributed along the length direction of the casing and connected to the connecting rod;

[0012] The wind guide blade further comprises:

[0013] A head portion, which is located at the end of the air guide blade away from the interior of the housing;

[0014] The tail portion is located at the end of the air guide blade facing the interior of the casing;

[0015] The back portion is connected to the head portion and the tail portion, and is located on the side of the air guide blades facing the top of the housing;

[0016] The abdomen is connected to the head and the tail, and is located on the side of the air guide blade facing the bottom of the housing; the abdomen is arranged corresponding to the back; and the abdomen is rotatably connected to the housing;

[0017] The concave portion is formed by the back portion being sunken toward the abdomen, and the concave portion is arranged close to the tail portion so that part of the airflow flowing through the windward side of the wind guide blade flows through the concave portion through the leeward side of the wind guide blade.

[0018] The present technical solution arranges a recess on the back of the air guide blade so that the airflow flowing through the windward side of the air guide blade can flow through the recess through the leeward side of the air guide blade, thereby avoiding the generation of negative pressure on the leeward side of the air guide blade, and further preventing the indoor air from coming into contact with the air guide blade and generating condensation on the leeward side of the air guide blade.

[0019] In some of the embodiments, the wind guide blade includes a root portion, the root portion is arranged toward a protruding belly portion of the bottom of the casing, and the root portion is rotatably connected to the mounting plate.

[0020] The technical solution reduces the size of the connection between the air guide blade and the mounting plate by providing a root portion and utilizing the root portion to be rotatably connected to the mounting plate.

[0021] In some of the embodiments, a connecting portion is provided at the root portion, and the connecting portion is arranged along a direction intersecting with the leeward side of the wind guide blade; the connecting portion is used to connect the leeward side of the wind guide blade with the windward side of the wind guide blade.

[0022] The technical solution provides a connecting portion at the root so that the connecting portion connects the leeward side of the air guide blade with the windward side of the air guide blade, thereby allowing the airflow at the root of the air guide blade to flow from the windward side of the air guide blade to the leeward side of the air guide blade.

[0023] In addition, the present application also provides a wall-mounted air conditioner indoor unit, comprising:

[0024] The casing at least comprises a casing air inlet and a casing air outlet, wherein the casing air inlet is provided at the top of the casing, and the casing air outlet is provided at the bottom of the front side of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively;

[0025] A heat exchanger is disposed inside the casing, and the heat exchanger is disposed near the air inlet of the casing to exchange heat with the air passing therethrough;

[0026] A heat exchange fan is arranged inside the casing and located on the leeward side of the heat exchanger;

[0027] A mounting plate extending along the length direction of the casing and mounted on the casing; the mounting plate is arranged near the air outlet of the casing;

[0028] An air guide blade is rotatably arranged at the air outlet of the casing, and is used to guide the flow of air outputted from the air outlet of the casing; the rotation axis of the air guide blade intersects with the height direction and the length direction of the casing; a plurality of air guide blades are provided, and at least some of the air guide blades are distributed along the length direction of the casing and are installed on the mounting plate;

[0029] A spoiler is arranged at the air outlet of the casing and mounted on a mounting plate. The spoiler is arranged at the middle part and / or end part along the distribution direction of the air guide blades. The spoiler is arranged at least close to one air guide blade. The spoiler is used to guide the air output from the air outlet of the casing to flow toward the air guide blade on the leeward side of the spoiler.

[0030] The technical solution arranges a spoiler at the air outlet of the casing so that the air output from the air outlet of the casing flows to the leeward side toward the wind guide blades of the spoiler, thereby avoiding the generation of negative pressure on the leeward side of the wind guide blades, and further preventing the indoor air from contacting the wind guide blades and generating condensation on the leeward side of the wind guide blades.

[0031] In some of the embodiments, two spoilers are provided in the middle portion of the distribution direction of the air guide blades. The two spoilers are arranged along the length direction of the casing, and the two spoilers guide the air flow in opposite directions.

[0032] In some of the embodiments, the mounting plate defines a mounting surface, the mounting surface is arranged toward the upper edge of the air outlet of the casing; the spoiler is installed on the mounting surface; the height direction of the spoiler intersects with the mounting surface; and the rotation axis of the air guide blade is arranged to intersect with the mounting surface.

[0033] In some embodiments, the spoiler includes a first section and a second section, the first section is located at an end of the spoiler facing the inside of the casing, and the second section is located at an end of the spoiler facing the outside of the casing, and the projection curve of the first section on the mounting surface and the projection curve of the second section on the mounting surface jointly define an angle α, and the angle α satisfies the relationship: α≥10°, α≤30°.

[0034] In some of the embodiments, the spoiler further includes a transition section, which is used to connect the first section and the second section; the heights of the first section, the transition section and the second section decrease in sequence.

[0035] In some embodiments, the height of the first section is F, the height of the transition section is G, and G and F satisfy the relationship: G≥0.5F, G≤0.6F.

[0036] In some embodiments, the height of the transition section is G, the height of the second section is H, and H and G satisfy the relationship: H≥0.5G, H≤0.6G.

[0037] In the above embodiment, a wall-mounted air-conditioning indoor unit is provided with a recess on the back of the air guide blade so that the airflow flowing through the windward side of the air guide blade can flow through the recess through the leeward side of the air guide blade, thereby avoiding the generation of negative pressure on the leeward side of the air guide blade, and further preventing the indoor air from contacting the air guide blade and generating condensation on the leeward side of the air guide blade.

[0038] A wall-mounted air conditioner indoor unit is provided with a spoiler to guide the air output from the air outlet of the casing to the leeward side of the air guide blades facing the spoiler, thereby avoiding the generation of negative pressure on the leeward side of the air guide blades, and further preventing the indoor air from contacting the air guide blades and generating condensation on the leeward side of the air guide blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0040] Figure 2 This is a schematic diagram of the structure of the air outlet of the casing in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0041] Figure 3 This is a schematic diagram of the structure inside the casing of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0042] Figure 4 This is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application when the air guide blade is installed on the base;

[0043] Figure 5 yes Figure 4 A partial enlarged view of the middle part;

[0044] Figure 6 This is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application when the air guide blade is assembled on the base;

[0045] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;

[0046] Figure 8It is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application when an air guide blade is installed on a mounting plate and connected to a connecting rod;

[0047] Fig. 9 This is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application when an air guide blade is installed on a mounting plate;

[0048] Fig.10 This is a schematic diagram of the structure of the air guide blades in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0049] Fig.11 The size of the air guide blade in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application is Figure 1 ;

[0050] Fig.12 The size of the air guide blade in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application is Figure 2 ;

[0051] Fig.13 This is a structural schematic diagram of another angle when the air guide blades are assembled on the base in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0052] Fig.14 yes Fig.13 A partial enlarged view of point C in the middle;

[0053] Fig.15 It is a structural schematic diagram of a spoiler in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0054] Fig.16 It is a structural schematic diagram from another angle of the spoiler in one embodiment of the wall-mounted air conditioner indoor unit of the present application.

[0055] In the figure,

[0056] 100, housing; 200, air guide plate; 300, air guide blade; 400, spoiler; 500, heat exchanger; 600, heat exchange fan; 700, mounting plate; 800, connecting rod; 900, fan motor;

[0057] 101, air inlet of the casing; 102, air outlet of the casing;

[0058] 110, outer cover; 120, base;

[0059] 310, connecting part; 320, head; 330, back; 340, tail; 350, root; 360, abdomen; 370, concave part;

[0060] 311, first rotating part; 312, extension part; 313, second rotating part;

[0061] 351, connecting part;

[0062] 410, first paragraph; 420, transition paragraph; 430, second paragraph;

[0063] 701, installation cavity. DETAILED DESCRIPTION

[0064] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0065] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0066] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0067] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0068] The wall-mounted air-conditioning indoor unit provided in the embodiments of the present application may have various implementation forms. The wall-mounted air-conditioning indoor unit may be a wall-mounted air-conditioning indoor unit with a fresh air function, or may be a conventional wall-mounted air-conditioning indoor unit.

[0069] like Figure 1-Figure 3 As shown, the present application provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit includes a casing 100, which is used to form the overall appearance of the wall-mounted air conditioner indoor unit. The casing 100 has a top and a bottom. The top of the casing 100 and the bottom of the casing 100 are opposite ends, and the height direction of the casing 100 is from the top of the casing 100 to the bottom of the casing 100; the left side of the casing 100 and the right side of the casing 100 are opposite sides, and the length direction of the casing 100 is from the left side of the casing 100 to the right side of the casing 100; the front side of the casing 100 and the rear side of the casing 100 are opposite sides, and the direction from the front side of the casing 100 to the rear side of the casing 100 is the height direction of the casing 100.

[0070] In practical applications, the housing 100 is usually disposed on the top of a room or in an upper space of a room, wherein the rear side of the housing 100 is disposed toward a wall, and the front side of the housing 100 is disposed toward a user.

[0071] like Figure 1 As shown, the housing 100 includes a housing air inlet 101 , which is located at the top of the housing 100 , and air enters the interior of the housing 100 through the housing air inlet 101 .

[0072] In some embodiments, the casing air inlet 101 extends along the length direction of the casing 100 to increase the air intake volume of the indoor unit of the wall-mounted air conditioner.

[0073] like Figure 2 As shown, the housing 100 includes a housing air outlet 102 , which is opened at the front side of the housing 100 and arranged close to the bottom of the housing 100 , that is, the housing air outlet 102 is located at the front lower side of the housing 100 .

[0074] In some embodiments, the casing air outlet 102 extends along the length direction of the casing 100 to increase the air outlet range and air outlet volume of the wall-mounted air conditioner indoor unit.

[0075] like Figure 2 As shown, the housing 100 includes an outer cover 110 , the outer cover 110 defines an outer cover cavity with an opening toward the rear side of the housing 100 , and the housing air inlet 101 is opened at the top of the outer cover 110 .

[0076] like Figure 3 and Figure 4 As shown, the casing 100 includes a base 120, which is arranged at the opening of the outer cover cavity; a base opening is provided at the front bottom of the base 120, and an outer cover opening is provided at the front bottom of the outer cover 110. The base opening and the outer cover opening are arranged correspondingly to jointly define a casing air outlet 102.

[0077] like Figure 3 As shown, the wall-mounted air conditioner indoor unit includes a heat exchanger 500, which is mounted on the base 120 and located inside the housing 100. The air in the housing 100 is heat-exchanged by the heat exchanger 500 after contacting the heat exchanger 500 to form conditioned air, and the conditioned air is output to the room through the housing air outlet 102 to meet the user's cooling or heating needs; it should be noted that the heat exchanger 500 is arranged close to the housing air inlet 101. It should also be noted that the conditioned air can be cold air, hot air, or even normal temperature air.

[0078] like Figure 3As shown, the wall-mounted air conditioner indoor unit includes a heat exchange fan 600, which is installed on the base 120 and located inside the casing 100. The heat exchange fan 600 is located on the leeward side of the heat exchanger 500, and the axial direction of the heat exchange fan 600 extends along the length direction of the casing 100.

[0079] The heat exchange fan 600 is operated to introduce indoor air into the casing 100 from the casing air inlet 101, and after heat exchange in the heat exchanger 500 to form conditioned air, the conditioned air flows into the room from the casing air outlet 102. It should be noted that the heat exchange fan 600 is a cross-flow fan.

[0080] like Figure 1 As shown, the wall-mounted air conditioner indoor unit includes an air guide plate 200 , which is rotatably disposed at the air outlet 102 of the casing, and the rotation axis of the air guide plate 200 is disposed along the length direction of the casing 100 .

[0081] like Figure 2 and Figure 4 As shown, the indoor unit of the wall-mounted air conditioner includes an air guide blade 300, which is rotatably arranged at the air outlet 102 of the casing to guide the flow of air output from the air outlet 102 of the casing to the room; the rotation axis of the air guide blade 300 intersects with the height direction and the length direction of the casing 100.

[0082] The air guide blades 300 are usually arranged in plurality, and the plurality of air guide blades 300 are distributed along the length direction of the casing 100. By changing the rotation angle of the air guide blades 300 relative to the casing 100, the direction of the air conditioning wind output to the room can be adjusted, and the air outlet range of the air conditioning wind can also be increased.

[0083] The air guide blade 300 includes two side surfaces, which are correspondingly arranged on both sides of the air guide blade 300. When the air guide blade 300 rotates, one side of the air guide blade 300 will be set toward the inside of the casing 100, and the other side of the air guide blade 300 will be set toward the outside of the casing 100. The airflow output from the casing air outlet 102 to the room will flow through the side of the air guide blade 300 facing the inside of the casing 100. Since the other side of the air guide blade 300 is set toward the outside of the casing 100, the air guide blade 300 will block the airflow, resulting in the airflow output from the casing air outlet 102 to the room not being able to flow well through the side of the air guide blade 300 facing the outside of the casing 100.

[0084] It should be noted that, for the convenience of description, the side of the air guide blade 300 facing the inside of the casing 100 is called the windward side of the air guide blade 300 , and the side of the air guide blade 300 facing the outside of the casing 100 is called the leeward side of the air guide blade 300 .

[0085] It should also be noted that the leeward side and the windward side of the air guide blade 300 are not fixed, and the leeward side and the windward side switch with each other as the rotation direction of the air guide blade 300 changes.

[0086] When the air guide blade 300 rotates toward the left side of the casing 100, the air guide blade 300 directs the air flow output by the casing air outlet 102 to the left side of the casing 100, and the side of the air guide blade 300 facing the left side of the casing 100 is the windward side, and the side of the air guide blade 300 close to the right side of the casing 100 is the leeward side; when the air guide blade 300 rotates toward the right side of the casing 100, the air guide blade 300 directs the air flow output by the casing air outlet 102 to the right side of the casing 100, and the side of the air guide blade 300 facing the right side of the casing 100 is the windward side, and the side of the air guide blade 300 close to the left side of the casing 100 is the leeward side.

[0087] like Figure 8 As shown, the air guide blade 300 is connected to a fan motor 900 , and the fan motor 900 is installed on the base 120 for driving the air guide blade 300 to rotate.

[0088] like Figure 5-Figure 8 As shown, the wall-mounted air conditioner indoor unit includes a mounting plate 700, and the mounting plate 700 is used to mount the air guide blades 300; the mounting plate 700 extends along the length direction of the housing 100 and is mounted on the base 120, and the mounting plate 700 is arranged near the housing air outlet 102; the air guide blades 300 are rotatably connected to the mounting plate 700. The length direction of the mounting plate 700 is arranged corresponding to the length direction of the housing 100, and a plurality of air guide blades 300 are respectively connected to the mounting plate 700 and distributed along the length direction of the mounting plate 700.

[0089] In this embodiment, the length direction of the mounting plate 700 is arranged in the same direction as the length direction of the housing 100 .

[0090] In order to facilitate the fan motor 900 to drive the plurality of wind guide blades 300 to rotate, Figure 8 As shown, the air guide blade 300 is connected to a connecting rod 800, which extends along the length direction of the casing 100. The multiple air guide blades 300 are connected to each other through the connecting rod 800. The fan motor 900 is connected to one end of the connecting rod 800 along the length direction of the casing 100. The fan motor 900 drives the connecting rod 800 to move, so that the connecting rod 800 drives the multiple air guide blades 300 to rotate.

[0091] like Figure 5 As shown, after the mounting plate 700 is installed on the base 120, it and the base 120 jointly define a mounting cavity 701, and the connecting rod 800 is arranged in the mounting cavity 701 to hide the connecting rod 800, so as to prevent the connecting rod 800 from blocking the air output from the housing air outlet 102 to the room, thereby preventing the connecting rod 800 from affecting the air outlet effect of the air conditioning.

[0092] like Figure 8 As shown, the wind guide blade 300 is provided with a connecting portion 310, which is rotatably connected to the mounting plate 700 so that the wind guide blade 300 can rotate relative to the mounting plate 700; the connecting portion 310 is rotatably connected to the connecting rod 800 so that the wind guide blade 300 is rotatably connected to the connecting rod 800.

[0093] The mounting plate 700 , the connecting portion 310 and the connecting rod 800 together define a four-link structure to achieve the rotation and installation of the wind guide blade 300 , which is common knowledge in the art and will not be described in detail.

[0094] like Fig.10 As shown, the connection portion 310 includes a first rotating portion 311 , and the first rotating portion 311 is rotatably connected to the mounting plate 700 .

[0095] like Fig.10 As shown, the connecting portion 310 includes a second rotating portion 313 , and the second rotating portion 313 is rotatably connected to the connecting rod 800 .

[0096] like Fig.10 As shown, the connecting portion 310 includes an extension portion 312 , and the extension portion 312 is used to connect the first rotating portion 311 and the second rotating portion 313 . The first rotating portion 311 and the second rotating portion 313 are correspondingly arranged at two ends of the extension portion 312 in the length direction.

[0097] The fan motor 900 drives the connecting rod 800 to move along the length direction of the casing 100, and the connecting rod 800 drives the multiple air guide blades 300 to rotate to adjust the angle of the air guide blades 300, so that the air guide blades 300 guide the air conditioning air to be output from the casing outlet 102 to the room.

[0098] It should be noted that the fan motor 900 driving the connecting rod 800 is a conventional technical means in the art and will not be described in detail here.

[0099] like Fig.10 As shown, the air guide blade 300 includes a head 320 , and the head 320 is located at an end of the air guide blade 300 away from the interior of the housing 100 .

[0100] like Fig.10 As shown, the air guide blade 300 includes a tail portion 340 , and the tail portion 340 is located at one end of the air guide blade 300 facing the inside of the housing 100 .

[0101] like Fig.10 As shown, the air guide blade 300 includes a back portion 330 , which is connected to the head portion 320 and the tail portion 340 . The back portion 330 is located on a side of the air guide blade 300 facing the top of the housing 100 .

[0102] like Fig.10As shown, the air guide blade 300 includes a belly 360, which is connected to the head 320 and the tail 340, and is located on the side of the air guide blade 300 facing the bottom of the housing 100; the belly 360 is arranged corresponding to the back 330; and the belly 360 is rotatably connected to the housing 100.

[0103] The direction from the head 320 to the tail 340 is the length direction of the air guide blade 300, and the distance from the head 320 to the tail 340 is A; the direction from the abdomen 360 to the back 330 is the width direction of the air guide blade 300, and the distance from the abdomen 360 to the back 330 is B, and B and A satisfy the relationship: B≥0.4A, C≤0.6A.

[0104] If B<0.4A, the aspect ratio of the air guide blade 300 is too large, which will reduce the guiding effect of the air guide blade 300 on the airflow.

[0105] If B>0.6A, the aspect ratio of the air guide blade 300 is too small, which will reduce the guiding effect of the air guide blade 300 on the airflow.

[0106] The airflow output from the housing air outlet 102 to the room will flow through the windward side of the air guide blade 300, but the airflow cannot flow well through the leeward side of the air guide blade 300 due to the blocking effect of the air guide blade 300 itself, and the leeward side of the air guide blade 300 is prone to negative pressure. The leeward side of the air guide blade 300 is arranged toward the outside of the housing 100, so the indoor air will be replenished to the leeward side of the air guide blade 300 under the effect of negative pressure.

[0107] When the indoor unit of the wall-mounted air conditioner is cooling, the temperature of the air output from the casing air outlet 102 is lower than the indoor air temperature, and the air output from the casing air outlet 102 flows through the air guide blade 300, which will reduce the temperature of the air guide blade 300. When the indoor air flows to the leeward side of the air guide blade 300 and contacts the leeward surface of the air guide blade 300, condensation is easily generated on the leeward surface of the air guide blade 300.

[0108] In the present application, part of the air flow output by the casing air outlet 102 flows through the leeward side of the air guide blade 300 to prevent negative pressure from being generated on the leeward side of the air guide blade 300, thereby avoiding contact between indoor air and the leeward surface of the air guide blade 300, and further preventing condensation from being generated on the leeward surface of the air guide blade 300.

[0109] Specifically, Fig.10 As shown, the back 330 is provided with a recess 370 , which is formed by the back 330 being sunken toward the abdomen 360 , so that the airflow flowing through the windward side of the air guide blade 300 flows through the recess 370 to the leeward side of the air guide blade 300 .

[0110] The recess 370 is disposed close to the tail portion 340 , so that the airflow can flow through the leeward side of the air guide blade 300 from the recess 370 in time when passing through the windward side of the air guide blade 300 .

[0111] The dimension from the side of the concave portion 370 facing the head portion 320 to the tail portion 340 is C, and C and A satisfy the relationship: C≥0.45A, C≤0.55A.

[0112] If C<0.45A, the size of the recess 370 is too small, while the size of the wind guide blade 300 is too large relative to the recess 370. The airflow flowing from the windward side of the wind guide blade 300 through the leeward side of the wind guide blade 300 is too small, and negative pressure is still likely to be generated on the leeward side of the wind guide blade 300.

[0113] If C>0.55A, the size of the recess 370 is too large, and the size of the air guide blade 300 is too small relative to the recess 370. There is too much airflow flowing from the windward side of the air guide blade 300 through the leeward side of the air guide blade 300. Although there is still a high possibility that negative pressure will not be generated on the leeward side of the air guide blade 300, the airflow guiding effect of the air guide blade 300 will also be reduced.

[0114] like Fig.10 As shown, the wind guide blade 300 includes a root 350, which is arranged toward the protruding belly 360 at the bottom of the housing 100, and the root 350 is rotatably connected to the mounting plate 700. By rotatably connecting the root 350 to the mounting plate 700, the size of the connection between the wind guide blade 300 and the mounting plate 700 can be reduced.

[0115] It should be noted that since the root 350 is arranged with the raised belly 360 toward the bottom of the casing 100, there is a gap between the belly 360 and the mounting plate 700, which can reduce the obstruction of the belly 360 of the air guide blade 300 to the airflow, and the airflow on the windward side of the air guide blade 300 can flow through the gap between the belly 360 and the mounting plate 700 to the leeward side of the air guide blade 300.

[0116] like Fig.10 As shown, the root 350 is provided with a connecting portion 351, and the connecting portion 351 is arranged along a direction intersecting with the leeward surface of the air guide blade 300; the connecting portion 351 is used to connect the leeward side of the air guide blade 300 with the windward side of the air guide blade 300, and the airflow located at the root 350 can flow from the windward side of the air guide blade 300 to the leeward side of the air guide blade 300.

[0117] In some embodiments, the connecting portion 351 extends to the belly portion 360 , so that the airflow on the windward side of the air guide blade 300 can flow better through the connecting portion 351 to the leeward side of the air guide blade 300 .

[0118] In some embodiments, the communication portion 351 is a communication opening provided on the wind guide blade 300 , and the opening direction of the communication opening is perpendicular to the leeward side of the wind guide blade 300 .

[0119] like Fig.11 and Fig.12 As shown, the dimension from the abdomen 360 to the side of the mounting plate 700 facing the housing air outlet 102 is the height dimension of the root 350, the height dimension of the root 350 is E, and the dimension of the connecting portion 351 along the height direction of the root 350 is D, and D and E satisfy the relationship: D≥1.1E, D≤1.2E.

[0120] If D<1.1E, the size of the connecting portion 351 is too small, and the airflow on the windward side of the air guide blade 300 cannot flow well through the connecting portion 351 to the leeward side of the air guide blade 300 .

[0121] If D>1.2E, the connecting portion 351 is too large. Although the airflow on the windward side of the air guide blade 300 can flow well to the leeward side of the air guide blade 300 through the connecting portion 351, the air guiding effect of the air guide blade 300 will be reduced.

[0122] By operating the heat exchange fan 600, indoor air is introduced into the heat exchange channel from the casing air inlet 101, and forms air-conditioned air after heat exchange with the heat exchanger 500. The air-conditioned air flows through the windward side of the air guide blade 300 from the casing air outlet 102, and the air-conditioned air is output to the room according to the guiding direction of the air guide blade 300; when the air-conditioned air flows through the windward side of the air guide blade 300, part of the air-conditioned air will flow from the recess 370 into the leeward side of the air guide blade 300, and part of the air-conditioned air will flow from the connecting portion 351 into the leeward side of the air guide blade 300, so as to balance the air pressure on the windward side of the air guide blade 300 and the air pressure on the leeward side of the air guide blade 300, so as to avoid condensation caused by the indoor air flowing into the leeward side of the air guide blade 300 and contacting the leeward surface of the air guide blade 300.

[0123] like Figure 7 and Fig.13 As shown, the wall-mounted air conditioner indoor unit includes a spoiler 400 , which is disposed at the housing air outlet 102 and is used to guide the air output from the housing air outlet 102 to flow toward the wind guide blade 300 on the leeward side facing the spoiler 400 .

[0124] When the air-conditioning wind flows through the air outlet 102 of the casing, the air flow is guided to the leeward side of the air guide blade 300 by the guiding effect of the spoiler 400, so that the air-conditioning wind flows through the leeward side of the air guide blade 300 to balance the air pressure on the windward side of the air guide blade 300 and the air pressure on the leeward side of the air guide blade 300, thereby preventing the indoor air from flowing into the leeward side of the air guide blade 300 and contacting the leeward surface of the air guide blade 300 to produce condensation.

[0125] The spoiler 400 is installed on the mounting plate 700, which defines a mounting surface, and the mounting surface is arranged toward the upper edge of the housing air outlet 102; the spoiler 400 is installed on the mounting surface; the height direction of the spoiler 400 intersects with the mounting surface; the rotation axis of the air guide blade 300 is arranged to intersect with the mounting surface.

[0126] It should be noted that if Fig.15 As shown, the projection curve of the spoiler 400 on the installation surface is substantially streamlined.

[0127] The spoiler 400 is located in the middle part and / or the end part of the distribution direction of the air guide blades 300. The spoiler 400 is arranged at least close to one air guide blade 300 so that the air output from the casing air outlet 102 flows toward the leeward side of the air guide blade 300 toward the spoiler 400, thereby avoiding the generation of negative pressure on the leeward side of the air guide blade 300, and further preventing the indoor air from contacting the air guide blade 300 and generating condensation on the leeward side of the air guide blade 300.

[0128] Since the windward side and the leeward side of the air guide blade 300 are variable, two spoilers 400 are provided in the middle part of the distribution direction of the air guide blade 300, and the two spoilers 400 are distributed along the length direction of the housing 100, and the two spoilers 400 guide the air flow in opposite directions. That is, when the air guide blade 300 rotates toward the right side of the housing 100, the spoiler 400 close to the right side of the housing 100 guides the air flow to the leeward side of the air guide blade 300; when the air guide blade 300 rotates toward the left side of the housing 100, the spoiler 400 close to the left side of the housing 100 guides the air flow to the leeward side of the air guide blade 300.

[0129] In some embodiments, two spoilers 400 located in the middle portion of the distribution direction of the wind guide blades 300 are mirror-imaged along a vertical plane.

[0130] The spoiler 400 located at the right end of the distribution direction of the air guide blades 300 guides the air flow to flow toward the leeward side of the air guide blades 300 when the air guide blades 300 rotate toward the left side of the housing 100 .

[0131] The spoiler 400 located at the left end of the distribution direction of the air guide blades 300 guides the air flow to flow toward the leeward side of the air guide blades 300 when the air guide blades 300 rotate toward the right side of the housing 100 .

[0132] In some embodiments, the spoiler 400 is not provided at the left end of the distribution direction of the wind guide blades 300 .

[0133] like Fig.15 As shown, the spoiler 400 includes a first section 410 , and the first section 410 is located at one end of the spoiler 400 facing the inside of the housing 100 .

[0134] In some embodiments, the projection curve of the first segment 410 on the installation surface is a straight line segment perpendicular to the length direction of the housing 100 .

[0135] like Fig.15 As shown, the spoiler 400 includes a second section 430 , and the second section 430 is located at one end of the spoiler 400 facing the outside of the housing 100 .

[0136] In some embodiments, the projection curve of the second segment 430 on the installation surface is a straight line segment intersecting with the length direction of the housing 100 .

[0137] The projection curve of the first section 410 in the installation surface and the projection curve of the second section 430 in the installation surface together define an angle α, so that the spoiler 400 can guide the air flow to the leeward side of the wind guide blade 300 .

[0138] The angle α satisfies the relationship: α≥10°, α≤30°, so that the spoiler 400 has a better guiding effect on the airflow.

[0139] If the angle α is less than 10°, the airflow guiding effect of the spoiler 400 is relatively weak.

[0140] If the angle α is greater than 30°, the spoiler 400 will have too strong an effect of guiding the airflow, which may hinder the flow of the airflow.

[0141] like Fig.15 As shown, the spoiler 400 includes a transition section 420 , and the transition section 420 is used to connect the first section 410 and the second section 430 .

[0142] The heights of the first section 410, the transition section 420 and the second section 430 decrease successively, so that the spoiler 400 gradually transitions from the side facing the inside of the housing 100 to the side facing the outside of the housing 100, so that the spoiler 400 can better guide the air flow.

[0143] like Fig.16 As shown, the height of the first section 410 is F, the height of the transition section 420 is G, and G and F satisfy the relationship: G≥0.5F, G≤0.6F.

[0144] If G<0.5F, the height change between the first section 410 and the transition section 420 is too slow, which will reduce the air guiding effect of the spoiler 400.

[0145] If G>0.6F, the height between the first section 410 and the transition section 420 changes too quickly, which will reduce the air guiding effect of the spoiler 400 .

[0146] The height of the transition section 420 is G, the height of the second section 430 is H, and H and G satisfy the relationship: H≥0.5G, H≤0.6G.

[0147] If H<0.5G, the height change between the transition section 420 and the second section 430 is too slow, which will reduce the air guiding effect of the spoiler 400.

[0148] If H>0.6G, the height between the transition section 420 and the second section 430 changes too quickly, which will reduce the air guiding effect of the spoiler 400.

[0149] The height of the first section 410 is F, the height of the second section 430 is H, and H and F satisfy the relationship: H≥0.25F, H≤0.36F.

[0150] If H<0.25F, the height change between the first section 410 and the second section 430 is too gradual, which may reduce the air guiding effect of the spoiler 400 .

[0151] If H>0.36F, the height between the first section 410 and the second section 430 changes too quickly, which will reduce the air guiding effect of the spoiler 400 .

[0152] The indoor unit of the wall-mounted air conditioner designs the air guide blade 300 into a "bird" shape and provides a recess 370 on the back 330 so that the airflow flowing through the windward side of the air guide blade 300 can flow through the recess 370 through the leeward side of the air guide blade 300, thereby avoiding the generation of negative pressure on the leeward side of the air guide blade 300, and further preventing the indoor air from contacting the air guide blade 300 and generating condensation on the leeward side of the air guide blade 300.

[0153] The indoor unit of the wall-mounted air conditioner is provided with a spoiler 400, which guides the air output from the air outlet 102 of the casing to flow toward the leeward side of the wind guide blade 300 toward the spoiler 400, thereby avoiding the generation of negative pressure on the leeward side of the wind guide blade 300, and further preventing the indoor air from contacting the wind guide blade 300 and generating condensation on the leeward side of the wind guide blade 300.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0155] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A wall mounted air conditioner indoor unit, characterized in that: include: A casing, comprising at least a casing air inlet and a casing air outlet, wherein the casing air inlet is opened at the top of the casing, and the casing air outlet is opened at the bottom of the front side of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively; A heat exchanger is disposed inside the casing, the heat exchanger is disposed near the air inlet of the casing, and is used to exchange heat for the air passing therethrough; A heat exchange fan, which is arranged inside the casing and located on the leeward side of the heat exchanger; A mounting plate extending along the length direction of the housing and mounted on the housing; An air guide blade, which is rotatably disposed at the air outlet of the casing and is used to guide the flow of air output from the air outlet of the casing; The rotation axis of the air guide blade intersects with the height direction of the casing and the length direction of the casing; The air guide blade is mounted on the mounting plate and is rotatably connected to a connecting rod. The air guide blade is provided in plurality, and at least some of the air guide blades are distributed along the length direction of the housing and are connected to the connecting rod. The wind guide blade further comprises: A head portion, which is located at an end of the air guide blade away from the interior of the housing; A tail portion, which is located at one end of the air guide blade facing the interior of the housing; A back portion connected to the head portion and the tail portion, the back portion being located on a side of the air guide blade facing the top of the housing; An abdomen connected to the head and the tail, the abdomen being located on the side of the wind guide blade facing the bottom of the housing; the abdomen is arranged corresponding to the back; the abdomen is rotatably connected to the housing; A concave portion is formed by the back portion being sunken toward the abdomen portion, and the concave portion is arranged close to the tail portion so that part of the airflow flowing through the windward side of the wind guide blade flows through the concave portion through the leeward side of the wind guide blade.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The wind guide blade comprises a root portion, the root portion is arranged to protrude from the belly portion toward the bottom of the housing, and the root portion is rotatably connected to the mounting plate.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: The root portion is provided with a connecting portion, and the connecting portion is arranged along a direction intersecting with the leeward side of the wind guide blade; the connecting portion is used to connect the leeward side of the wind guide blade with the windward side of the wind guide blade.

4. A wall mounted air conditioner indoor unit, characterized in that: include: A casing, comprising at least a casing air inlet and a casing air outlet, wherein the casing air inlet is opened at the top of the casing, and the casing air outlet is opened at the bottom of the front side of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively; A heat exchanger is disposed inside the casing, the heat exchanger is disposed near the air inlet of the casing, and is used to exchange heat for the air passing therethrough; A heat exchange fan, which is arranged inside the casing and located on the leeward side of the heat exchanger; A mounting plate extending along the length direction of the housing and mounted on the housing; the mounting plate is disposed close to the air outlet of the housing; An air guide blade, which is rotatably disposed at the air outlet of the casing and is used to guide the flow of air output from the air outlet of the casing; The rotation axis of the air guide blade intersects with the height direction of the casing and the length direction of the casing; the air guide blade is provided in plurality, and at least some of the air guide blades are distributed along the length direction of the casing and installed on the mounting plate; A spoiler is arranged at the air outlet of the casing and mounted on the mounting plate, the spoiler is arranged at the middle part and / or end part along the distribution direction of the air guide blades, and the spoiler is arranged at least close to one of the air guide blades; the spoiler is used to guide the air output from the air outlet of the casing to flow toward the leeward side of the air guide blade toward the spoiler.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: Two spoilers are provided in the middle part of the distribution direction of the air guide blades. The two spoilers are arranged along the length direction of the casing, and the two spoilers guide the air flow in opposite directions.

6. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: The mounting plate defines a mounting surface, which is arranged toward the upper edge of the air outlet of the casing; the spoiler is installed on the mounting surface; the height direction of the spoiler intersects with the mounting surface; and the rotation axis of the air guide blade intersects with the mounting surface.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: The spoiler includes a first section and a second section, the first section is located at an end of the spoiler facing the inside of the casing, and the second section is located at an end of the spoiler facing the outside of the casing, and a projection curve of the first section on the mounting surface and a projection curve of the second section on the mounting surface jointly define an angle α, and the angle α satisfies the relationship: α≥10°, α≤30°.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that: The spoiler also includes a transition section, which is used to connect the first section and the second section; the heights of the first section, the transition section and the second section decrease in sequence.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that: The height of the first section is F, the height of the transition section is G, and G and F satisfy the relationship: G≥0.5F, G≤0.6F.

10. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that: The height of the transition section is G, the height of the second section is H, and H and G satisfy the relationship: H≥0.5G, H≤0.6G.

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