Hanging type air conditioner indoor unit

Abstract

The utility model provides a hanging type air conditioner indoor unit which comprises a machine shell and a top plate, the top plate is located above an indoor heat exchanger, a gap is formed between the top plate and the vertex of the indoor heat exchanger, the minimum gap between the vertex of the indoor heat exchanger and the top plate is a first gap G1, and the top plate is adjustably arranged at the top of the machine shell relative to the position of the indoor heat exchanger. The size of the first gap G1 changes along with the adjustment of the position of the top plate. The position of the top plate relative to the indoor heat exchanger can be adjusted, the position of the top plate can be adjusted according to needs to increase the minimum gap between the top plate and the vertex of the heat exchanger, air can penetrate through the minimum gap between the top plate and the vertex of the heat exchanger to flow to the third-section heat exchanger, and the heat exchange effect of the second-section heat exchanger and the third-section heat exchanger is improved; and the air outlet volume of the indoor air outlet is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a hanging type air conditioner indoor unit. Background Art

[0002] In small spaces such as kitchens, bathrooms, small bedrooms, storage rooms, and convenience stores, the indoor wall space is very limited. For example, the kitchen wall is surrounded by range hoods, cabinets, windows, doors connecting to the living room, and refrigerators. There is a ceiling on the top of the wall. If an air conditioner is to be installed, this small space scenario will limit the size of the air conditioner and the air inlet and outlet.

[0003] The conventional wall-mounted air conditioner indoor unit includes a casing, an air inlet and an air outlet are arranged on the casing, and an indoor heat exchanger is arranged inside the casing. The indoor heat exchanger generally has three sections. The conventional wall-mounted air conditioner indoor unit has top air intake and bottom air outlet, and a certain height of air intake space is generally required above the top air intake position; however, in the kitchen scene, since there is a suspended ceiling on the top of the kitchen and the height space in the kitchen is insufficient, the wall-mounted air conditioner indoor unit is required to be installed close to the ceiling to save space, but after the conventional wall-mounted unit is installed close to the ceiling, the air inlet of the wall-mounted air conditioner indoor unit will be blocked and no air will enter.

[0004] At present, there are some air conditioner indoor units that have an air inlet on the front side of the air conditioner and an air outlet on the bottom side of the air conditioner, so that the air inlet is at the front side and the air outlet is at the bottom side, and when the air conditioner is installed close to the ceiling, the air inlet will not be blocked. However, when the indoor heat exchanger adopts three sections, this form of front-side air inlet and bottom-side air outlet will make the heat exchange effect of the heat exchanger at the top of the front side low, and the heat exchanger at the top of the front side will block the heat exchanger at the rear side, so that the heat exchanger at the rear side cannot perform heat exchange, which seriously affects the heat exchange effect of the indoor heat exchanger. Therefore, the present application proposes a hanging air conditioner indoor unit. Summary of the invention

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, according to an embodiment of the present disclosure, a wall-mounted air conditioner indoor unit is provided, comprising:

[0007] A main body, wherein the length direction of the main body is from one side end to the other side end, and the main body at least includes a first cavity located inside the main body;

[0008] The subject includes:

[0009] A casing, wherein an indoor air inlet is provided on the front side of the casing, an indoor air outlet is provided on the bottom of the casing, and the indoor air outlet and the indoor air inlet are in communication with the first cavity;

[0010] an indoor heat exchanger, disposed in the first chamber;

[0011] an indoor fan, arranged in the first cavity and located on a side of the indoor heat exchanger away from the indoor air inlet, the indoor fan drives air from the indoor air inlet into the first cavity to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows out of the first cavity through the indoor air outlet;

[0012] The indoor heat exchanger comprises:

[0013] The second heat exchanger;

[0014] The third section heat exchanger is located at a side of the second section heat exchanger away from the indoor air inlet, and the top end of the third section heat exchanger is connected to the top end of the second section heat exchanger;

[0015] The housing comprises:

[0016] A top plate is located above the indoor heat exchanger, with a gap between the top plate and the vertex of the indoor heat exchanger, the minimum gap between the vertex of the indoor heat exchanger and the top plate is a first gap G1, the top plate is arranged on the top of the casing so that its position can be adjusted relative to the indoor heat exchanger, and the size of the first gap G1 changes with the adjustment of the position of the top plate.

[0017] By setting the indoor air inlet at the front side of the casing and the indoor air outlet at the bottom of the casing, the problem of the air conditioner indoor unit being unable to take in air when installed close to the ceiling can be solved, which can meet the needs of users for ceiling installation and the scenario of installation in a small space, and can save space. The second-stage heat exchanger and the third-stage heat exchanger are set up to make full use of the space in the first cavity and increase the surface area of ​​the heat exchanger. By setting the position of the top plate relative to the indoor heat exchanger to be adjustable, the position of the top plate can be adjusted as needed to increase the minimum gap between the top plate and the vertex of the heat exchanger, so that air can pass through the minimum gap between the top plate and the vertex of the heat exchanger to flow to the third-stage heat exchanger, thereby improving the heat exchange effect of the second-stage heat exchanger and the third-stage heat exchanger and increasing the air volume of the indoor air outlet.

[0018] According to an embodiment of the present disclosure, the first gap G1 ≥ the first parameter value, and the first parameter value is 5mm or 6mm or 7mm, so that there is a certain gap between the top of the indoor heat exchanger and the top plate, so that the air flowing in from the indoor air inlet can pass through the gap between the top of the indoor heat exchanger and the top plate to flow to the third-section heat exchanger, thereby ensuring the heat exchange capacity of the third-section heat exchanger, increasing the heat exchange area, improving the heat exchange effect, and reducing noise.

[0019] According to an embodiment of the present disclosure, the first gap G1 ≤ the second parameter value, and the second parameter value is 28 mm or 30 mm or 32 mm, so that the gap between the top of the indoor heat exchanger and the top plate is limited to a certain range, avoiding the height of the air-conditioning indoor unit body being too large and saving installation space.

[0020] According to an embodiment of the present disclosure, the distance between the vertex of the indoor heat exchanger and the vertex of the main body in the height direction of the main body is an eighth distance L8, and the eighth distance increases as the first gap G1 increases, and the eighth distance decreases as the first gap G1 decreases. When the overall space is insufficient, the first gap and the eighth distance can be reduced to ensure the normal installation of the air conditioner. When the overall space is sufficient, the position of the top plate can be adjusted to increase the first gap and the eighth distance, so that the air can pass through the minimum gap between the top plate and the vertex of the heat exchanger to flow to the third section heat exchanger, thereby improving the heat exchange effect of the second section heat exchanger and the third section heat exchanger and increasing the air volume of the indoor air outlet.

[0021] According to an embodiment of the present disclosure, the casing includes an air inlet grille arranged on the front side of the casing, the indoor air inlet is formed on the air inlet grille, and the air inlet grille includes a plurality of first grille bars, and the plurality of first grille bars are spaced apart in the height direction of the main body. Among two adjacent first grille bars, the bottom end of the upper first grille bar is lower than the top end of the lower first grille bar, so that the first grille bars can block the indoor heat exchanger in the front-to-back direction, preventing the user from seeing the indoor heat exchanger, thereby ensuring visual beauty.

[0022] According to an embodiment of the present disclosure, the housing includes:

[0023] A top plate frame, on which at least one top plate mounting position is provided, and the top plate is arranged on the top plate mounting position;

[0024] The top of the top plate frame is the top of the main body. The top plate frame is replaceable or height-adjustable and is arranged on the top of the casing to change the eighth distance. The top plate is adjusted to the first gap by being arranged on different top plate mounting positions.

[0025] The eighth distance can be changed by replacing the top plate frame, and the top plate is set on the top plate installation position of the replaced top plate frame to change the first gap. The eighth distance can be changed by changing the height of the top plate frame, and the top plate is set on the top plate frame after the height is changed to change the first gap. The main body height and the first gap can be changed according to the size of the space. The first gap and the eighth distance can be reduced when the overall space is insufficient to ensure the normal installation of the air conditioner. When the overall space is sufficient, the position of the top plate can be adjusted to increase the first gap and the eighth distance, so that the air can pass through the minimum gap between the top plate and the top of the heat exchanger to flow to the third section heat exchanger, thereby improving the heat exchange effect of the second section heat exchanger and the third section heat exchanger and increasing the air volume of the indoor air outlet.

[0026] According to an embodiment of the present disclosure, a top plate installation space is formed in the top plate frame, and the bottom of the top plate installation space is communicated with the first cavity;

[0027] The top plate mounting position includes a top plate supporting portion and a top plate mounting hole, the top plate supporting portion is arranged in the top plate mounting space, the top plate mounting hole is communicated with the top plate mounting space, the top plate is inserted into the top plate mounting cavity through the top plate mounting hole and is located on the top plate supporting portion.

[0028] According to an embodiment of the present disclosure, the top plate frame includes a top plate frame side plate arranged on the side of the top plate frame, the top plate mounting hole is arranged on the top plate frame side plate, the top plate mounting hole penetrates the top plate frame side plate in the thickness direction of the top plate frame side plate, and the top plate support portion is connected to the inner wall surface of the top plate frame side plate.

[0029] According to an embodiment of the present disclosure, it also includes:

[0030] A driving device is arranged on the housing and connected to the top plate, and the driving device drives the top plate to move along the height direction of the main body to adjust the installation position of the top plate.

[0031] According to an embodiment of the present disclosure, a wall-mounted air conditioner indoor unit is also provided, comprising:

[0032] A main body, wherein the length direction of the main body is from one side end to the other side end, and the main body at least includes a first cavity located inside the main body;

[0033] The subject includes:

[0034] A casing, wherein an indoor air inlet is provided on the front side of the casing, an indoor air outlet is provided on the bottom of the casing, and the indoor air outlet and the indoor air inlet are in communication with the first cavity;

[0035] an indoor heat exchanger, disposed in the first chamber;

[0036] an indoor fan, arranged in the first cavity and located on a side of the indoor heat exchanger away from the indoor air inlet, the indoor fan drives air from the indoor air inlet into the first cavity to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows out of the first cavity through the indoor air outlet;

[0037] The indoor heat exchanger comprises:

[0038] The second heat exchanger;

[0039] The third section heat exchanger is located at a side of the second section heat exchanger away from the indoor air inlet, and the top end of the third section heat exchanger is connected to the top end of the second section heat exchanger;

[0040] The housing comprises:

[0041] A top plate, arranged on the top of the casing, the top plate being located above the indoor heat exchanger;

[0042] There is a gap between the vertex of the indoor heat exchanger and the top plate, and the minimum gap between the vertex of the indoor heat exchanger and the top plate is a first gap G1;

[0043] There are several top plate mounting positions, and the several top plate mounting positions are arranged along the height direction of the main body; the top plate is arranged on one of the top plate mounting positions, and when the top plate is located on different top plate mounting positions, the size of the first gap is different.

[0044] By setting a number of top plate installation positions, the top plate can be installed in different positions, and the installation position of the top plate can be adjusted as needed to increase the minimum gap between the top plate and the top of the heat exchanger, so that air can pass through the minimum gap between the top plate and the top of the heat exchanger to flow to the third section heat exchanger, thereby improving the heat exchange effect of the second section heat exchanger and the third section heat exchanger and increasing the air volume of the indoor air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 is a three-dimensional diagram of an indoor unit of an air conditioner according to an embodiment of the present application;

[0047] Figure 2 is a three-dimensional diagram of an indoor unit of an air conditioner from another perspective according to an embodiment of the present application;

[0048] Figure 3 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0049] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0050] Figure 5 is a three-dimensional diagram of an indoor unit of an air conditioner from another perspective according to an embodiment of the present application;

[0051] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0052] Figure 7 is an exploded view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0053] Figure 8 It is an exploded view of the local structure of the indoor unit of the air conditioner according to the embodiment of the present application;

[0054] Fig. 9 It is a schematic diagram of the structure of the top plate frame according to the implementation scheme of the present application;

[0055] Fig.10 It is an exploded view of the local structure of the indoor unit of the air conditioner according to the embodiment of the present application;

[0056] Fig.11 is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0057] Fig.12 yes Fig.11 A partial enlarged view of point C in the middle;

[0058] Fig.13 This is a structural diagram of the air inlet grille according to the embodiment of the present application.

[0059] Fig.14 is a partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0060] Fig.15 is another partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0061] Fig.16 is another partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0062] Fig.17 is another three-dimensional diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0063] Fig.18 is another three-dimensional diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0064] Fig.19is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0065] Fig. 20 is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0066] Fig.21 is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0067] Fig. 22 is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0068] Fig.23 is another partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0069] Fig.24 is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0070] Fig.25 is another cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0071] Fig.26 is another partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0072] Fig. 27 is another partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0073] Fig.28 This is another cross-sectional view of the air conditioner indoor unit according to the embodiment of the present application.

[0074] In the above figures: main body 100; first chamber 101; housing 1; indoor air inlet 111; indoor air outlet 112; top plate 121; top plate frame 122; top plate mounting position 1220; top plate support portion 12201; top plate mounting hole 12202; top plate mounting space 1221; top plate frame side plate 1222; top plate frame first side plate 12221; top plate frame second side plate 12222; housing frame 123; frame first through hole 1231; front panel 124; front The first through hole 1241 of the panel; the air inlet grille 125; the first grille bar 1251; the front volute tongue 126; the front volute tongue air inlet section 1261; the front volute tongue air outlet section 1262; the front volute tongue connecting section 1263; the rear volute tongue 127; the rear volute tongue air inlet end 1271; the upper inflection surface 128; the indoor heat exchanger 21; the first section heat exchanger 211; the second section heat exchanger 212; the third section heat exchanger 213; the indoor fan 22; the indoor fan 221; the outer air guide plate 31; the inner air guide plate 32. DETAILED DESCRIPTION

[0075] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0076] The present application proposes a wall-mounted air-conditioning indoor unit, which is described below with reference to the accompanying drawings.

[0077] The wall mounted air conditioner indoor unit may be a component of the air conditioner. The air conditioner may include an air conditioner outdoor unit.

[0078] In this application, reference is made to Figure 1-Figure 3 The wall-mounted air conditioner indoor unit may include a main body 100 .

[0079] The body 100 may have a top and a bottom. The top of the body to the bottom of the body may be the height direction of the body.

[0080] The main body 100 may have a length direction, and the length direction of the main body may be from one side end of the main body to the other side end of the main body.

[0081] The main body may have a front side and a rear side that are arranged opposite to each other. The side of the main body facing the user may be the front side of the main body. The front side of the main body to the rear side of the main body may be the front-rear direction of the main body.

[0082] The height direction, length direction and front-rear direction of the main body are perpendicular to each other.

[0083] In the present application, the wall mounted air conditioner indoor unit can be arranged vertically, and the height direction of the wall mounted air conditioner indoor unit is parallel to the vertical direction.

[0084] In this application, reference is made to Figure 1-Figure 3 , the body 100 may include at least a first cavity 101. The first cavity 101 may be located inside the body.

[0085] In this application, reference is made to Figure 1-Figure 3 , the main body 100 may include a housing 1 .

[0086] In this application, reference is made to Figure 1-Figure 3 An indoor air inlet 111 may be formed on the housing 1.

[0087] The air conditioner indoor unit can be hung on the wall, and the top of the air conditioner indoor unit can be installed against the wall or against the indoor ceiling surface, so that the air conditioner indoor unit is installed against the ceiling.

[0088] The indoor air inlet 111 may be disposed at the front side of the housing 1. The indoor air inlet 111 is used as an inlet for air to enter the housing 1. The indoor air inlet 111 may be in communication with the first cavity.

[0089] In this application, reference is made to Figure 1-Figure 3, an indoor air outlet 112 may be formed on the housing 1. The indoor air outlet 112 may be arranged at the bottom of the housing. The indoor air outlet 112 may be arranged at the front side of the bottom of the housing. The indoor air outlet 112 is used for the air in the housing 1 to flow out of the housing. The indoor air outlet 112 may be connected to the first cavity.

[0090] In the present application, the indoor air outlet is in the shape of a long strip and is arranged along the length direction of the main body.

[0091] In this application, reference is made to Figure 1-Figure 3 The main body 100 may include an indoor heat exchanger 21. The indoor heat exchanger 21 may be disposed in the first cavity. The indoor heat exchanger may be used to exchange heat with the air in the first cavity.

[0092] In this application, reference is made to Figure 1-Figure 3 The main body 100 may include an indoor fan 22. The indoor fan 22 may be disposed in the first cavity. The indoor fan 22 may be located on a side of the indoor heat exchanger away from the indoor air inlet. The indoor fan may be used to provide power for the flow of air.

[0093] The indoor fan can drive air to enter the first cavity through the indoor air inlet to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger can flow out of the first cavity through the indoor air outlet.

[0094] In the present application, the air conditioner outdoor unit may include an outdoor housing. An outdoor accommodation space may be provided in the outdoor housing.

[0095] The air conditioner outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger may be arranged in the outdoor accommodation space.

[0096] The air conditioner outdoor unit may include an outdoor fan. The outdoor fan may be arranged in the outdoor accommodation space.

[0097] In the present application, an outdoor air inlet may be provided on the outdoor housing. The outdoor air inlet may be connected to the outdoor accommodation space. The outdoor air inlet may be used to introduce outdoor air into the outdoor accommodation space.

[0098] The outdoor housing may be provided with an outdoor air outlet, which may be connected to the outdoor accommodation space, and may be used to lead the air in the outdoor accommodation space out of the outdoor accommodation space.

[0099] The rotation of the outdoor fan causes outdoor air to enter the outdoor accommodation space from the outdoor air inlet to exchange heat with the outdoor heat exchanger, and the outdoor air after heat exchange flows out of the outdoor accommodation space from the outdoor air outlet.

[0100] In the present application, the air conditioner may include a compressor. The compressor may be arranged in the outdoor accommodation space.

[0101] The air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be arranged in the outdoor accommodation space.

[0102] Of both the indoor heat exchanger and the outdoor heat exchanger, one is a condenser and the other is an evaporator.

[0103] The air conditioner performs the refrigeration cycle of the air conditioner by using a compressor, a condenser, a throttling device and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat exchanged.

[0104] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state.

[0105] The exhausted refrigerant gas flows into the condenser.

[0106] The condenser condenses the compressed refrigerant into liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0107] The throttle device expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.

[0108] The evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in a low temperature and low pressure state to the compressor.

[0109] The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the whole cycle, the air conditioner can adjust the temperature of the indoor space.

[0110] When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0111] In this application, reference is made to Figure 1-Figure 3 The indoor heat exchanger 21 may include a first stage heat exchanger 211. The first stage heat exchanger may be disposed between the indoor air inlet and the indoor fan.

[0112] The first section heat exchanger may be arranged along the length direction of the main body. The length direction of the first section heat exchanger may be parallel to the length direction of the main body.

[0113] The two ends of the first section heat exchanger which are arranged opposite to each other in the width direction may be arranged up and down.

[0114] In this application, reference is made to Figure 1-Figure 3 , the indoor heat exchanger may include a second stage heat exchanger 212 .

[0115] The second section heat exchanger may be arranged along the length direction of the main body. The length direction of the second section heat exchanger may be parallel to the length direction of the main body.

[0116] The two ends of the second section heat exchanger in the width direction can be arranged up and down.

[0117] The bottom end of the second heat exchanger can be connected to the top end of the first heat exchanger. The top end of the second heat exchanger can be located above the indoor fan.

[0118] In this application, reference is made to Figure 1-Figure 3 , the indoor heat exchanger may include a third stage heat exchanger 213 .

[0119] The third section heat exchanger may be arranged along the length direction of the main body. The length direction of the third section heat exchanger may be parallel to the length direction of the main body.

[0120] The two ends of the third section heat exchanger in the width direction can be arranged up and down.

[0121] The third section heat exchanger may be located at a side of the second section heat exchanger away from the indoor air inlet. The top end of the third section heat exchanger may be connected to the top end of the second section heat exchanger.

[0122] The indoor heat exchanger includes a first-stage heat exchanger, a second-stage heat exchanger and a third-stage heat exchanger. This can maximize the use of the space inside the casing without increasing the height and front-to-back dimensions of the indoor heat exchanger, thereby increasing the heat exchange area of ​​the indoor heat exchanger and achieving a better heat exchange effect.

[0123] In this application, reference is made to Figure 3-Figure 4 , the housing 1 may include a top plate 121. The top plate is disposed on the top of the housing.

[0124] In this application, the indoor wall space is very limited in small space scenarios such as kitchens, bathrooms, small bedrooms, storage rooms, convenience stores, etc. For example, the kitchen wall is surrounded by range hoods, cabinets, windows, doors connecting to the living room, refrigerators, etc., and there is a ceiling on the top of the wall. If an air conditioner is to be installed, this small space scenario will limit the size of the air conditioner and the air inlet and outlet.

[0125] The existing wall-mounted air conditioner indoor unit generally has top air intake and bottom air outlet, and a certain height of air intake space is generally required above the top air intake position; however, in the kitchen scenario, since there will be a suspended ceiling on the top of the kitchen and the height space in the kitchen is insufficient, the wall-mounted air conditioner indoor unit is required to be installed close to the ceiling to save space. However, after the existing wall-mounted air conditioner indoor unit is installed close to the ceiling, the air inlet of the wall-mounted air conditioner indoor unit will be blocked and no air will enter.

[0126] In the prior art, there are some air conditioner indoor units that have an air inlet set on the front side of the air conditioner and an air outlet set on the bottom side of the air conditioner, so that the air inlet of the air conditioner is set on the front side and the air outlet is set on the bottom side, and when the air conditioner is installed close to the ceiling, the air inlet will not be blocked. However, when the indoor heat exchanger adopts three sections, when the third section of the heat exchanger is required to perform heat exchange, the air entering the first cavity through the indoor air inlet needs to pass through the gap between the top of the heat exchanger and the top plate to flow to the third section of the heat exchanger. However, when the gap between the top of the heat exchanger and the top plate is too small, the air flowing to the third section of the heat exchanger will be too little, which is prone to abnormal noise, and the air flowing to the top of the second section of the heat exchanger is also less. Therefore, this form of front-side air inlet and bottom-side air outlet will make the heat exchange effect of the first section of the heat exchanger on the front side low, and the first section of the heat exchanger on the front side will block the second section of the heat exchanger on the back side, so that the second section of the heat exchanger cannot perform heat exchange, which seriously affects the heat exchange effect of the indoor heat exchanger.

[0127] In this application, the top plate is located above the indoor heat exchanger.

[0128] In the height direction of the main body, the point of the indoor heat exchanger closest to the top of the main body is the vertex of the indoor heat exchanger.

[0129] refer to Figure 3-Figure 4 There is a gap between the vertex of the indoor heat exchanger and the top plate. The minimum gap between the vertex of the indoor heat exchanger and the top plate is the first gap G1.

[0130] In the present application, the top plate is arranged on the top of the casing so that its position relative to the indoor heat exchanger can be adjusted. The size of the first gap G1 changes with the adjustment of the position of the top plate.

[0131] By setting the indoor air inlet on the front side of the casing and the indoor air outlet at the bottom of the casing, the problem of air intake failure when the air conditioner indoor unit is installed close to the ceiling can be solved. This can meet the needs of users for ceiling installation, meet the installation scenario in a small space, and save space.

[0132] The second and third heat exchangers are provided to fully utilize the space of the first cavity and increase the surface area of ​​the heat exchanger.

[0133] By setting the position of the top plate relative to the indoor heat exchanger to be adjustable, the position of the top plate can be adjusted as needed to increase the minimum gap between the top plate and the top of the heat exchanger, so that air can pass through the minimum gap between the top plate and the top of the heat exchanger to flow to the third-stage heat exchanger, thereby improving the heat exchange effect of the second-stage heat exchanger and the third-stage heat exchanger and increasing the air volume of the indoor air outlet.

[0134] In this application, reference is made to Figure 5-Figure 7The housing may include a top plate mounting position 1220. There may be a plurality of top plate mounting positions. The plurality of top plate mounting positions are arranged along the height direction of the main body. The top plate is arranged on one of the top plate mounting positions, and when the top plate is arranged on different top plate mounting positions, the size of the first gap is different.

[0135] By setting a number of top plate installation positions, the top plate can be installed in different positions, and the installation position of the top plate can be adjusted as needed to increase the minimum gap between the top plate and the top of the heat exchanger, so that air can pass through the minimum gap between the top plate and the top of the heat exchanger to flow to the third section heat exchanger, thereby improving the heat exchange effect of the second section heat exchanger and the third section heat exchanger and increasing the air volume of the indoor air outlet.

[0136] In this application, reference is made to Figure 2-Figure 5 , the distance between the vertex of the indoor heat exchanger and the vertex of the main body in the height direction of the main body is the eighth distance L8. The eighth distance increases as the first gap G1 increases. The eighth distance decreases as the first gap G1 decreases. When the overall space is insufficient, the first gap and the eighth distance can be reduced to ensure the normal installation of the air conditioner. When the overall space is sufficient, the position of the top plate can be adjusted to increase the first gap and the eighth distance, so that the air can pass through the minimum gap between the top plate and the vertex of the heat exchanger to flow to the third section heat exchanger, thereby improving the heat exchange effect of the second section heat exchanger and the third section heat exchanger and increasing the air volume of the indoor air outlet.

[0137] In the present application, the first gap G1 ≥ the first parameter value. The first parameter value can be 5 mm, 6 mm, or 7 mm, so that there is a certain gap between the top of the indoor heat exchanger and the top plate, so that the air flowing in from the indoor air inlet can pass through the gap between the top of the indoor heat exchanger and the top plate to flow to the third section of the heat exchanger, thereby ensuring the heat exchange capacity of the third section of the heat exchanger, increasing the heat exchange area, improving the heat exchange effect, and reducing noise.

[0138] In the present application, the first gap G1≤the second parameter value. The second parameter value can be 28mm, 30mm or 32mm, so that the gap between the top of the indoor heat exchanger and the top plate is limited within a certain range, avoiding the height of the air conditioner indoor unit body being too large and saving installation space.

[0139] In this application, reference is made to Figure 5-Figure 7 The housing 1 may include a top plate frame 122. The top plate frame may be disposed on the top of the housing. The top plate may be connected to the top plate frame.

[0140] At least one top plate installation position is arranged on the top plate frame, and the top plate is arranged on the top plate installation position.

[0141] The vertex of the top plate frame is the vertex of the main body.

[0142] The top plate frame can be replaceably arranged on the top of the housing to change the eighth distance L8. The top plate frame can be height-adjustable and arranged on the top of the housing to change the eighth distance. The top plate can be arranged on different top plate mounting positions to adjust the first gap.

[0143] The eighth distance can be changed by replacing the top plate frame, and the top plate is set on the top plate installation position of the replaced top plate frame to change the first gap. The eighth distance can be changed by changing the height of the top plate frame, and the top plate is set on the top plate frame after the height is changed to change the first gap. The main body height and the first gap can be changed according to the size of the space. The first gap and the eighth distance can be reduced when the overall space is insufficient to ensure the normal installation of the air conditioner. When the overall space is sufficient, the position of the top plate can be adjusted to increase the first gap and the eighth distance, so that the air can pass through the minimum gap between the top plate and the top of the heat exchanger to flow to the third section heat exchanger, thereby improving the heat exchange effect of the second section heat exchanger and the third section heat exchanger and increasing the air volume of the indoor air outlet.

[0144] In the present application, a roof panel frame may have several roof panel mounting positions. Several roof panel mounting positions may be arranged along the height direction of the main body. The roof panel is arranged on one of the roof panel mounting positions. The roof panel frame may be provided with a knocking section to remove a distance of the roof panel frame to change the height of the roof panel frame, thereby changing the eighth distance.

[0145] In the present application, different top plate frames have different heights so that the eighth distance is different, and the top plates are arranged on different top plate frames and the size of the first gap is adjusted.

[0146] In this application, reference is made to Figure 5-Figure 8 A top plate installation space 1221 is formed in the top plate frame. The bottom of the top plate installation space is connected to the first cavity, so that the air entering the first cavity from the indoor air inlet can enter the top plate installation space, and the air entering the top plate installation space can re-enter the first cavity, so that the air can pass through the top of the heat exchanger and flow from the front side of the second stage heat exchanger to the rear side of the third stage heat exchanger, so that the third stage heat exchanger can exchange heat, increase the heat exchange area, and improve the heat exchange effect.

[0147] The top of the top plate installation space can be open. The top of the top plate installation space can be closed.

[0148] In this application, reference is made to Figure 5-Figure 9 The top plate installation position may include a top plate support portion 12201. The top plate support portion 12201 is used to support the top plate. The top plate support portion may be arranged in the top plate installation space.

[0149] In the present application, on a roof frame, the roof support parts of several roof mounting positions can be arranged in sequence in the height direction of the main body.

[0150] In this application, reference is made to Figure 5-Figure 9 The top plate mounting position may include a top plate mounting hole 12202. The top plate mounting hole is used to insert the top plate. The top plate mounting hole may be connected to the top plate mounting space. The top plate may be inserted into the top plate mounting cavity through the top plate mounting hole, and the top plate is located on the top plate support portion; the top plate mounting hole and the top plate support portion are provided to facilitate installation and removal of the top plate, and to facilitate installation on different top plate mounting positions, so as to adjust the first gap.

[0151] In the present application, on a top plate frame, top plate mounting holes of a plurality of top plate mounting positions can be arranged sequentially in the height direction of the main body.

[0152] In this application, reference is made to Figure 5-Figure 9 , the top plate frame may include a top plate frame side plate 1222. The top plate frame side plate may be arranged on the side of the top plate frame.

[0153] The top plate mounting hole can be arranged on the top plate frame side plate. The top plate mounting hole can penetrate the top plate frame side plate in the thickness direction of the top plate frame side plate. The top plate support part can be connected to the inner wall surface of the top plate frame side plate, which is convenient for design.

[0154] In this application, reference is made to Figure 7-Figure 9 The top plate frame side plate may include a top plate frame first side plate 12221. The top plate frame side plate may include a top plate frame second side plate 12222. The top plate frame first side plate 12221 and the top plate frame second side plate 12222 may be arranged opposite to each other.

[0155] The top plate mounting hole can be arranged on the first side plate of the top plate frame. The top plate supporting part can be arranged on the inner wall surface of the second side plate of the top plate frame.

[0156] In this application, reference is made to Figure 7-Figure 9 The first side plate 12221 of the top plate frame and the second side plate 12222 of the top plate frame can be arranged relative to each other in the length direction of the main body, so that the top plate mounting hole is located at one side end of the top plate frame in the length direction of the main body, so that the top plate is inserted into the top plate mounting position on one side of the length direction of the main body.

[0157] In the present application, the first side plate 12221 of the top plate frame and the second side plate 12222 of the top plate frame can be relatively arranged in the front-to-back direction of the main body, so that the top plate mounting hole is located at one side end of the top plate frame in the front-to-back direction of the main body, so that the top plate is inserted into the top plate mounting position on one side of the front-to-back direction of the main body.

[0158] In the present application, the main body may include a driving device. The driving device may be arranged on the housing. The driving device may be connected to the top plate.

[0159] The top of the top plate can be the top of the main body. The driving device drives the top plate to move along the height direction of the main body to adjust the installation position of the top plate.

[0160] The driving device may include a driving motor. The top plate is moved by the operation of the driving motor.

[0161] The driving device may be a manual driving device, and the top plate is moved by user operation.

[0162] In this application, reference is made to Figure 7-Figure 9 The housing 1 may include a housing frame 123. The top plate frame may be connected to the top of the housing frame. The top plate frame may be snap-fitted with the housing frame.

[0163] refer to Figure 7-Figure 9 The top of the housing frame 123 may be provided with a first frame through hole 1231. The first frame through hole connects the first cavity and the top plate installation space.

[0164] In this application, reference is made to Figure 10-13 The housing may include an air inlet grille 125. An indoor air inlet is formed on the air inlet grille. The air inlet grille may include a first grille bar 1251. There may be a plurality of first grille bars. The plurality of first grille bars are spaced apart in the height direction of the main body. Of two adjacent first grille bars, the bottom end of the upper first grille bar is lower than the top end of the lower first grille bar, so that the first grille bar can shield the indoor heat exchanger in the front-to-back direction, preventing the user from seeing the indoor heat exchanger, and ensuring visual beauty.

[0165] In the present application, the first grid bar may include a grid bar top surface. The grid bar top surface may be arranged obliquely. The front end of the grid bar top surface is the top end of the grid bar top surface.

[0166] In the present application, the first grid bar may include a grid bar bottom surface. The grid bar bottom surface may be arranged obliquely. The front end of the grid bar bottom surface is the top end of the grid bar bottom surface.

[0167] In the present application, in two adjacent grille bars, the bottom surface of the upper grille bar and the top surface of the lower grille bar form a grille bar air duct. The grille bar air duct can connect the first cavity and the indoor air inlet.

[0168] In the present application, among two adjacent grille bars, the bottom surface of the upper grille bar and the top surface of the lower grille bar form the wall surface of the indoor air inlet.

[0169] In the present application, the housing may include a front panel. The front panel may be located at the front side of the housing.

[0170] In the present application, the front panel may be formed separately from the housing frame.

[0171] In the present application, the front panel may be integral with the housing frame.

[0172] In the present application, an indoor air inlet may be formed on the front panel.

[0173] In the present application, the front panel may include an air intake grille, and the air intake grille may be formed on the front panel.

[0174] In this application, reference is made to Figure 10-12 The air inlet grille can be connected to the front panel. The front panel can be provided with a first through hole 1241 of the front panel.

[0175] The air inlet grille can be arranged in the first through hole of the front panel for easy installation.

[0176] In this application, reference is made to Figure 10-12 The indoor fan may be a cross-flow fan. The indoor fan may include an indoor fan 221. The indoor fan may be a cross-flow fan. The indoor fan may be arranged along the length direction of the main body. The rotation axis of the indoor fan may be parallel to the length direction of the main body.

[0177] The indoor fan may include a fan motor. The fan motor is arranged on one side of the indoor fan in the length direction of the main body. The fan motor may be connected to the indoor fan. The fan motor drives the indoor fan to rotate.

[0178] The air inlet and outlet at the bottom on the front side of the air conditioner indoor unit is prone to direct backflow of the air outlet, affecting the heat exchange effect of the air conditioner indoor unit. In addition, the air flow enters from the front side of the casing, causing the air flow to directly pass through the first section of the heat exchanger, which shortens the distance between the air flow and the indoor fan, making it easy for the air flow to enter the gap between the indoor fan and the front volute tongue, affecting the air volume of the air conditioner indoor unit and easily generating noise.

[0179] In the present application, when the indoor fan rotates, the contour with the largest diameter formed by the rotation of a point on the indoor fan can be the outer contour of the fan.

[0180] The lowest point of the indoor air inlet on the outer surface of the casing may be the lowest point of the indoor air inlet.

[0181] The lowest point of the fan outer contour may be lower than the lowest point of the indoor air inlet.

[0182] refer to Fig.14 The distance between the lowest point of the fan outer contour and the lowest point of the indoor air inlet in the main body height direction is a first distance L1.

[0183] The first distance is ≥ the third parameter value. The third parameter value can be 4mm, 5mm or 6mm, so that the lowest point of the fan outer contour and the lowest point of the indoor air inlet have a certain height difference, so as to avoid the height difference between the two being too small, and to avoid the air entering the first cavity from the indoor air inlet entering the gap between the indoor fan and the front volute tongue, causing the loss of the intake airflow, avoiding the reduction of the air volume, and avoiding the generation of abnormal noise.

[0184] In the present application, the indoor air outlet may be located at the front side of the bottom of the housing. The indoor air outlet may be located below the indoor air inlet.

[0185] The highest point of the indoor air outlet on the outer surface of the casing is the highest point of the indoor air outlet.

[0186] refer to Fig.14 , the distance between the highest point of the indoor air outlet and the lowest point of the indoor air inlet at the height of the main body is the second distance L2. The second distance L2 ≥ the fourth parameter value. The fourth parameter value can be 18mm, 20mm or 22mm, to avoid the distance between the indoor air outlet and the indoor air inlet being too small to avoid the air flowing out of the indoor air outlet being directly sucked into the indoor air inlet, resulting in poor heat exchange effect.

[0187] In this application, reference is made to Figure 11-13 The housing may include a front volute tongue 126. The housing may include a rear volute tongue 127. The indoor fan may be located between the front volute tongue and the rear volute tongue.

[0188] In the present application, the housing frame may include a front volute tongue and a rear volute tongue, wherein the front volute tongue and the rear volute tongue are an integral piece.

[0189] In the present application, the housing frame, the front volute tongue and the rear volute tongue may be an integral piece.

[0190] In the present application, the forward-bottom-out air inlet and outlet method causes a large turn in the process from inflow to outflow, and the airflow enters from the front side of the casing, so that most of the airflow passes directly through the first section of the heat exchanger, which shortens the distance between the airflow and the fan, and easily causes the airflow to enter the gap between the indoor fan and the front volute tongue, affecting the air volume of the air conditioner indoor unit and easily generating noise; and the forward-bottom-out air inlet and outlet method causes the air to directly rush into the first section of the heat exchanger, the first section of the heat exchanger has a large air volume, and the airflow passing through the first section of the heat exchanger is uneven, causing serious dirt and blockage on the front side of this section of the heat exchanger, affecting the air resistance of the air conditioner indoor unit, and generating obvious abnormal noise.

[0191] In this application, reference is made to Fig.15 The front volute tongue may include a front volute tongue air inlet section 1261. On the flow path of air from the indoor air inlet to the indoor air outlet, the front volute tongue air inlet section is located at an end of the front volute tongue away from the indoor air outlet. The front volute tongue air inlet end is located at the front side of the indoor fan.

[0192] One end of the front volute tongue air inlet section close to the indoor air inlet is the front end of the front volute tongue air inlet section. One end of the front volute tongue air inlet section close to the indoor air inlet is the top end of the front volute tongue air inlet section.

[0193] In this application, reference is made to Fig.15The front volute tongue may include a front volute tongue air outlet section 1262. On the flow path of air from the indoor air inlet to the indoor air outlet, the front volute tongue air outlet section is located at one end of the front volute tongue close to the indoor air outlet, the end of the front volute tongue air outlet section close to the indoor air inlet is the top end of the front volute tongue air outlet section, and the end of the front volute tongue air outlet section close to the indoor air inlet is the rear end of the front volute tongue air outlet section.

[0194] In this application, reference is made to Fig.15 The front volute tongue may include a front volute tongue connecting section 1263. The front volute tongue connecting section 1263 is connected to the bottom end of the front volute tongue air inlet section. The front volute tongue connecting section is connected to the top end of the front volute tongue air outlet section.

[0195] The top end of the first section heat exchanger can be higher than the top end of the front volute tongue. The bottom end of the first section heat exchanger can be lower than the top end of the front volute tongue.

[0196] refer to Fig.16 , the distance between the bottom end of the first section heat exchanger and the top end of the front volute tongue in the main body height direction can be a third distance L3. The third distance L3 ≥ the fifth parameter value. The fifth parameter value can be 4mm or 5mm or 6mm, so that there is a section of the lower part of the first section heat exchanger that is lower than the top end of the front volute tongue, so that the air sucked in by the indoor fan needs to turn at the front side of the front volute tongue, which can reduce the airflow flowing through the first section heat exchanger being sucked in horizontally by the indoor fan, avoid the airflow directly rushing into the first section heat exchanger, improve the wind resistance of the air conditioner indoor unit, reduce the abnormal sound caused by the dirt and blockage of the air conditioner indoor unit, and at the same time avoid the airflow entering the first cavity from entering the gap between the indoor fan and the front volute tongue, thereby reducing noise.

[0197] In the present application, the third distance L3≤the sixth parameter value. The sixth parameter value may be 22 mm, 25 mm or 28 mm, to avoid a large height difference between the first heat exchanger and the top of the front volute tongue, to avoid the formation of vortices on the front side of the front volute tongue, and to ensure that the air flows normally to the indoor fan.

[0198] In this application, reference is made to Fig.16 , the center of the first section heat exchanger in the main body height direction may be the first center. The distance between the first center and the rotation center of the indoor fan in the main body height direction may be the fourth distance L4. The ratio of the fourth distance L4 to the height of the first section heat exchanger is the first ratio. The first ratio ≤ the seventh parameter value. The seventh parameter value may be 0.2 or 0.25 or 0.3, and the distance between the first center and the rotation center of the indoor fan is minimized as much as possible, so that the airflow sucked by the indoor fan is as uniform as possible when flowing through the first section heat exchanger, and the problem of excessive airflow velocity and air volume in the local area of ​​the first section heat exchanger is not likely to occur, thereby improving the uniformity of heat exchange of the first section heat exchanger, improving the wind resistance resistance of the air conditioner indoor unit, and reducing the abnormal noise caused by dirt and blockage of the air conditioner indoor unit.

[0199] The fourth distance L4≥0, so that the first ratio≥0.

[0200] In this application, reference is made to Fig.16 When the indoor fan of the indoor fan rotates, the maximum diameter of the contour formed by the rotation of the points on the indoor fan can be the maximum diameter of the fan D1. The height of the first section heat exchanger in the height direction of the main body can be the first height H1. H1 / D1≥the eighth parameter value. The eighth parameter value can be 0.75 or 0.8 or 0.85, so that the height of the first section heat exchanger is as close as possible to the maximum diameter of the indoor fan, which can maximize the utilization of the indoor fan and the first section heat exchanger, and avoid the problem of uneven airflow and low heat exchange efficiency caused by one of them being too large or too small.

[0201] In the present application, H1 / D1≤9th parameter value. The 9th parameter value may be 1.35 or 1.4 or 1.45, so that the height of the first section heat exchanger is as close as possible to the maximum diameter of the indoor fan, which can maximize the utilization of the indoor fan and the first section heat exchanger, and avoid the problem of uneven airflow and low heat exchange efficiency caused by one of them being too large or too small.

[0202] In this application, reference is made to Fig.16 The main body may include an outer air guide plate 31. The outer air guide plate 31 may be rotatably connected to the indoor air outlet, and the outer air guide plate may be used to open or close the indoor air outlet.

[0203] In this application, reference is made to Fig.16 The main body may include an inner air guide plate 32. The inner air guide plate 32 may be located in the housing 1. The inner air guide plate is located on a side of the outer air guide plate close to the indoor fan. The inner air guide plate is used to change the outflow direction of air.

[0204] In the present application, the main body may include an air deflector driving device, which is connected to the air deflector and rotates the air deflector.

[0205] In the present application, the internal configuration of the air-conditioning indoor unit is not very reasonable, resulting in a relatively large overall height dimension and an overall front-to-back dimension of the air-conditioning indoor unit, which is not conducive to the installation of the air-conditioning indoor unit in a space with a narrow height or in a space with requirements on the front-to-back dimension, affecting the applicability of the air-conditioning indoor unit and reducing the market competitiveness of the air-conditioning indoor unit; and, when the indoor air inlet is set at the front side of the air-conditioning indoor unit, the heat exchange effect of the indoor heat exchanger in the upper section of the existing air-conditioning indoor unit is poor, and the heat exchange mainly depends on the indoor heat exchanger in the lower section, resulting in uneven overall heat exchange of the indoor heat exchanger.

[0206] In this application, reference is made to Figure 17-Figure 19 The bottom of the housing is provided with an indoor air outlet. The distance between the front end of the indoor air outlet and the front end of the housing bottom is greater than the distance between the rear end of the indoor air outlet and the rear end of the housing bottom.

[0207] The indoor air outlet may be located in the middle of the bottom of the housing.

[0208] In the present application, the indoor heat exchanger may include a two-stage heat exchanger. The two-stage heat exchanger may be a first-stage heat exchanger and a second-stage heat exchanger.

[0209] The indoor heat exchanger adopts a two-stage form, which can greatly save the height dimension of the air-conditioning indoor unit and the space required for indoor installation, and has a wider installation range.

[0210] One end of the first section heat exchanger in the width direction may be the bottom end of the first section heat exchanger. Both ends of the first section heat exchanger in the width direction may be the bottom ends of the first section heat exchanger.

[0211] One end of the second section heat exchanger in the width direction may be the bottom end of the second section heat exchanger, and the other end of the second section heat exchanger in the width direction may be the top end of the second section heat exchanger.

[0212] In the present application, the first section heat exchanger can be tilted in the front-to-back direction of the main body. The top end of the first section heat exchanger can be the front end of the first section heat exchanger. The bottom end of the first section heat exchanger can be the rear end of the first section heat exchanger.

[0213] In the length direction of the main body, the first section heat exchanger can be arranged horizontally.

[0214] In the present application, the second section heat exchanger can be tilted in the front-to-back direction of the main body. The bottom end of the second section heat exchanger can be the front end of the second section heat exchanger. The top end of the second section heat exchanger can be the rear end of the second section heat exchanger.

[0215] In the length direction of the main body, the second section heat exchanger can be arranged horizontally.

[0216] In this application, reference is made to Fig.19 , the bottom end of the second section heat exchanger is connected to the top end of the second section heat exchanger.

[0217] The openings of the first section heat exchanger and the second section heat exchanger may face the indoor fan. The width direction of the first section heat exchanger and the width direction of the second section heat exchanger may be arranged at a first angle α1. The first angle α1 may face the indoor fan.

[0218] The first angle α1<the tenth parameter value. The tenth parameter value can be 90°, 86° or 82°, which ensures that the indoor heat exchanger has a certain heat exchange area, so that the width direction of the first section heat exchanger and the width direction of the second section heat exchanger are set at an acute angle, so that the overall height of the indoor heat exchanger will not be too high, which can greatly reduce the overall height of the air conditioner indoor unit, meet the installation needs of small spaces such as kitchens, and the air conditioner indoor unit can be installed in a small space above a door or window.

[0219] The first angle α1 may be 80°.

[0220] In this application, reference is made to Fig.19 , the first angle α1> the eleventh parameter value. The eleventh parameter value is 30°, 40° or 50°, so that the first section heat exchanger and the second section heat exchanger have a certain angle, ensuring the opening space formed by the first section heat exchanger and the second section heat exchanger, so that the air can smoothly pass through the indoor heat exchanger and flow from the front side of the indoor heat exchanger to the opening space formed by the first section heat exchanger and the second section heat exchanger, ensuring the air output of the air conditioner indoor unit.

[0221] In this application, reference is made to Fig.19 The width direction of the second section heat exchanger and the horizontal plane may be arranged at a second angle α2. The second angle α2 may be toward the indoor fan.

[0222] The second angle α2> the twelfth parameter value. The twelfth parameter value can be 45°, 40° or 35°, so that the width direction of the second section heat exchanger has a certain inclination angle, which facilitates the smooth flow of condensed water generated on the second section heat exchanger.

[0223] The second angle α2 may be 46° or 47°.

[0224] In this application, reference is made to Fig.19 The second angle α2 is less than the first angle α1, so that the width direction of the first section heat exchanger forms a certain angle with the horizontal plane, avoiding the horizontal setting of the first section heat exchanger and ensuring the heat exchange effect of the first section heat exchanger.

[0225] In this application, reference is made to Fig. 20 The indoor fan may include an indoor fan. When the indoor fan rotates, the maximum diameter of the contour formed by the rotation of the points on the indoor fan is the maximum diameter D1 of the fan.

[0226] refer to Fig. 20 The rear end of the first heat exchanger may be located behind the rear end of the second heat exchanger. The distance between the rear end of the first heat exchanger and the rear end of the second heat exchanger in the front-rear direction of the main body may be a fifth distance L5.

[0227] L5 / D1≤ parameter value 14. The parameter value 14 may be 1.5 or 2 or 2.5, so that the front-to-rear dimensions of the indoor unit of the air conditioner can be reduced as much as possible without affecting the air volume and noise, so as to facilitate installation in a small space.

[0228] L5 / D1≥the thirteenth parameter value. The thirteenth parameter value can be 1 / 4 or 1 / 3 or 1 / 2, so as not to affect the air volume and noise, and to prevent excessive wind from entering between the fan and the front volute tongue.

[0229] In this application, reference is made to Fig.21, the distance between the rear end of the first heat exchanger and the rotation center of the indoor fan in the front-to-back direction of the main body can be a sixth distance L6. The sixth distance L6≤the sixteenth parameter value. The sixteenth parameter value can be 18mm, 20mm, or 22mm, which prevents a large amount of airflow from entering the gap between the indoor fan and the front volute tongue, ensures the air volume while avoiding noise, and can reduce the front-to-back dimensions of the indoor unit of the air conditioner, ensuring the possibility of installation in a small space.

[0230] In the present application, in the front-to-back direction of the main body, the rear end of the first heat exchanger is located behind the rotation center of the indoor fan, which can reduce the front-to-back dimensions of the air conditioner indoor unit and ensure the possibility of installation in a small space.

[0231] In the present application, the rear end of the second heat exchanger is at a certain distance from the rotation center of the indoor fan in the front-to-back direction of the main body. In the front-to-back direction of the main body, the rear end of the second heat exchanger can be located in front of the rotation center of the indoor fan.

[0232] In this application, reference is made to Fig. 20 When the second angle α2 is less than 45°, in the front-to-rear direction of the main body, the rear end of the second heat exchanger is located in front of the indoor fan, preventing condensed water on the second heat exchanger from dripping onto the fan, preventing condensed water from being thrown to the outside of the air conditioner indoor unit by the fan, and preventing condensed water from being thrown out from the indoor air outlet.

[0233] In the present application, the width direction of the first section heat exchanger and the horizontal plane may be arranged at a third angle α3. The third angle α3 may be toward the indoor fan.

[0234] When the third angle α3 is larger, it is beneficial for the first stage heat exchanger to discharge condensed water, and can reduce the attenuation effect of condensed water on the performance of the first stage heat exchanger.

[0235] When the third angle α3 is small, the overall height of the air-conditioning indoor unit can be reduced while ensuring the heat exchange area, thereby ensuring the possibility of installing the air-conditioning indoor unit in a small space.

[0236] In this application, reference is made to Fig.19 , the third angle α3>the fifteenth parameter value. The fifteenth parameter value can be 0°, 5° or 10°, which is beneficial to the first stage heat exchanger to discharge condensed water, and can reduce the attenuation effect of condensed water on the performance of the first stage heat exchanger, but will not greatly increase the height of the air conditioner indoor unit.

[0237] The third angle α3 may be 23° or 24°.

[0238] In the present application, the top end of the first heat exchanger can be the front end of the first heat exchanger. The bottom end of the second heat exchanger can be the front end of the second heat exchanger. In the present application, the bottom end of the second heat exchanger is connected to the top end of the second heat exchanger. The openings of the first heat exchanger and the second heat exchanger can face the indoor fan.

[0239] The farther the distance between the indoor heat exchanger and the indoor fan, the greater the air volume, but it will cause a larger front-to-back dimension; if the distance between the indoor heat exchanger and the indoor fan is too small, it will cause abnormal noise and affect the air volume.

[0240] In this application, reference is made to Fig. 22 , the minimum gap between the indoor fan and the first heat exchanger can be the second gap G2. The second gap G2 ≤ ​​the nineteenth parameter value. The nineteenth parameter value can be 28mm, 30mm or 32mm, which ensures the air volume and noise-free, while limiting the minimum gap between the first heat exchanger and the indoor fan within a certain range, so that the front and rear dimensions and height dimensions of the air conditioner indoor unit will not be too large, ensuring the possibility of installing the air conditioner indoor unit in a small space, and enabling the air conditioner indoor unit to be installed above the indoor door or window.

[0241] In this application, reference is made to Fig. 22 , the eighteenth parameter value ≤ the second gap G2. The eighteenth parameter value can be 6mm, 7mm or 8mm, to avoid the indoor fan and the first section heat exchanger being too close to each other to affect the air volume and the heat exchange performance of the indoor heat exchanger, and to avoid the indoor fan and the first section heat exchanger being too close to each other to cause noise.

[0242] In this application, reference is made to Fig. 22 , the minimum gap between the indoor fan and the second heat exchanger can be the third gap G3. The third gap G3 ≤ the twenty-first parameter value. The twenty-first parameter value can be 28mm, 30mm or 32mm, which ensures the air volume and noise-free, while limiting the minimum gap between the second heat exchanger and the indoor fan within a certain range, so that the front and rear dimensions and height dimensions of the air conditioner indoor unit will not be too large, ensuring the possibility of installing the air conditioner indoor unit in a small space, and enabling the air conditioner indoor unit to be installed above the indoor door or window.

[0243] In this application, reference is made to Fig. 22 , the twentieth parameter value ≤ the third gap G3. The twentieth parameter value can be 6mm, 7mm or 8mm, to avoid the indoor fan and the first stage heat exchanger being too close to each other to affect the air volume and the heat exchange performance of the indoor heat exchanger, and to avoid the indoor fan and the first stage heat exchanger being too close to each other to cause noise.

[0244] In this application, reference is made to Figure 19-22 , the housing may include a front volute tongue 126. The front volute tongue 126 may be located below the indoor fan.

[0245] refer to Fig.23 The front volute tongue may include a front volute tongue air inlet section 1261. On the flow path of air from the indoor air inlet to the indoor air outlet, the front volute tongue air inlet section is located at the end of the front volute tongue away from the indoor air outlet, and the end of the front volute tongue air inlet section close to the indoor air inlet is the front end of the front volute tongue air inlet section.

[0246] In this application, reference is made to Fig.23 The front volute tongue may include a front volute tongue air outlet section 1262. On the flow path of air from the indoor air inlet to the indoor air outlet, the front volute tongue air outlet section is located at one end of the front volute tongue close to the indoor air outlet, and the end of the front volute tongue air outlet section close to the indoor air inlet is the top of the front volute tongue air outlet section.

[0247] In this application, reference is made to Fig.23 The front volute tongue may include a front volute tongue connecting section 1263. The front volute tongue connecting section 1263 is connected to the rear end of the front volute tongue air inlet section. The front volute tongue connecting section is connected to the top end of the front volute tongue air outlet section.

[0248] In this application, reference is made to Fig.23 , the distance between the rear end of the first heat exchanger and the front end of the front volute tongue air inlet section in the front-to-back direction of the main body may be a seventh distance L7. The seventh distance L7 is ≥ the twenty-second parameter value. The twenty-second parameter value is 4 mm, 5 mm, or 6 mm, which prevents a large amount of airflow from entering the gap between the indoor fan and the front volute tongue, ensures the air volume while avoiding noise, and can reduce the front-to-back dimensions of the indoor unit of the air conditioner, ensuring the possibility of installation in a small space.

[0249] In the present application, in the front-to-back direction of the main body, the rear end of the first heat exchanger is located behind the front end of the front volute air inlet section, which can reduce the front-to-back dimensions of the air conditioner indoor unit and ensure the possibility of installation in a small space.

[0250] In the present application, the rear end of the first heat exchanger is located in front of the front volute tongue air outlet section.

[0251] In the present application, the width direction of the first section heat exchanger and the width direction of the second section heat exchanger may be arranged at a first angle α1. The first angle α1 is toward the indoor fan.

[0252] refer to Fig.24 , 180°>first angle α1. The first angle α1 is directed toward the indoor fan. The first angle α1 ≥ the twenty-third parameter value. The twenty-third parameter value may be 90°, 100°, or 110°.

[0253] The width direction of the second section heat exchanger and the horizontal plane may be arranged at a second angle α2, and the second angle α2 faces the indoor fan. 90°≥ the second angle α2, ensuring that the second angle faces the indoor fan. The second angle α2> the seventeenth parameter value. The seventeenth parameter value may be 47°, 50°, or 53°.

[0254] The first angle α1 is set to be ≥ the 23rd parameter value and the second angle α2 is set to be > the 17th parameter value to reduce the front and rear dimensions of the air-conditioning indoor unit while ensuring the heat exchange area of ​​the indoor heat exchanger, thereby meeting the requirement of a small space for a smaller front and rear dimension of the air-conditioning indoor unit.

[0255] In this application, reference is made to Fig.24 , the width direction of the second section heat exchanger is set at a second angle α2 with the horizontal plane. The second angle α2 is toward the indoor fan. The second angle α2>45°, while ensuring the heat exchange area of ​​the indoor heat exchanger, the front-to-back dimensions of the air-conditioning indoor unit are reduced, and the small space has a smaller front-to-back dimension of the air-conditioning indoor unit. 47°>the second angle α2, so that the second angle will not be too large, and the height of the air-conditioning indoor unit will not be too large when the front-to-back dimension of the air-conditioning indoor unit is relatively small, so that it can be installed above the indoor door body or above the window.

[0256] The first angle α1 is set to be ≥ the twenty-third parameter value and 47°> the second angle α2>45° to ensure the heat exchange area of ​​the indoor heat exchanger while reducing the front and rear dimensions of the air-conditioning indoor unit. This ensures that the small space has a smaller front and rear dimension of the air-conditioning indoor unit without making the height of the air-conditioning indoor unit too large, and allows it to be installed in a small space above the indoor door or above the window.

[0257] In this application, reference is made to Fig.25 , the housing includes a rear volute tongue 127.

[0258] On the flow path of air from the indoor air inlet to the indoor air outlet, the end of the rear volute tongue close to the indoor air inlet can be the rear volute tongue air inlet end 1271. In the height direction of the main body, the top of the second section heat exchanger is higher than the rear volute tongue air inlet end, which can make full use of the space in the casing and reduce the height size of the air conditioner indoor unit.

[0259] In this application, reference is made to Fig.26 , the minimum gap between the rear volute tongue air inlet end 1271 and the second section heat exchanger can be the fourth gap G4. The fourth gap G4 ≥ the twenty-fourth parameter value. The twenty-fourth parameter value can be 10mm or 12mm or 14mm, ensuring that there is a certain distance between the second section heat exchanger and the rear volute tongue air inlet end, so that air can also pass through the top of the second section heat exchanger. The air passing through the top of the second section heat exchanger can flow downward to the rear volute tongue air inlet end and flow out of the indoor air outlet through the indoor fan, ensuring the air volume and improving the heat exchange performance of the top section of the second section heat exchanger.

[0260] In the present application, the fourth gap G4≤the 25th parameter value. The 25th parameter value can be 45mm, 50mm or 55mm, so that the distance between the air inlet end of the rear volute tongue and the second section heat exchanger is not too large, so that the front and rear dimensions of the air conditioner indoor unit are not too large, and the possibility of installation in a small space is ensured.

[0261] In this application, reference is made to Fig. 27 The housing may include an upper inflection surface 128. The bottom end of the upper inflection surface may be connected to the air inlet end of the rear volute tongue. In the front-to-back direction of the main body, the top end of the upper inflection surface may be located in front of the bottom end of the upper inflection surface. The top end of the second section heat exchanger is located in front of the upper inflection surface. The upper inflection surface is provided to guide the air flowing downward from the top of the second section heat exchanger to the air inlet end of the rear volute tongue, thereby improving the heat exchange performance of the upper part of the second section heat exchanger.

[0262] In this application, reference Fig. 27 , the upper inflection surface can be arranged along the length direction of the main body. The angle between the upper inflection surface and the height direction of the main body is a fourth angle α4. The fourth angle α4<the twenty-sixth parameter value. The twenty-sixth parameter value can be 45°, 50°, or 55°, which can guide while making the space between the upper inflection surface and the second section heat exchanger large enough to ensure the air intake and heat exchange efficiency of the upper end of the second section heat exchanger.

[0263] In the present application, the width direction of the first heat exchanger is set at a third angle α3 with the horizontal plane. The third angle α3 is toward the indoor fan, and the third angle α3>45°, which can make the first heat exchanger tilted at a large enough angle to facilitate the drainage of condensed water on the first heat exchanger.

[0264] In the present application, the width direction of the first section heat exchanger is set at a third angle α3 with the horizontal plane. The third angle α3 is toward the indoor fan, and the third angle α3 is ≤ 45°, so that the inclination angle of the first section heat exchanger is small, so that the height of the air conditioner indoor unit is not too large.

[0265] In this application, reference is made to Fig.28 The width direction of the second section heat exchanger and the horizontal plane may be arranged at a second angle α2. The second angle α2 may be toward the indoor fan.

[0266] 90°≥the second angle α2, ensuring that the second angle α2 is directed toward the indoor fan.

[0267] The second angle α2> the seventeenth parameter value, the seventeenth parameter value is 80° or 75° or 70°, so that when the overall height of the air-conditioning indoor unit remains unchanged, the air volume passing through the second-section heat exchanger is increased by increasing the inclination angle of the second-section heat exchanger, and at the same time, it is convenient for the second-section heat exchanger to discharge condensed water. While ensuring the heat exchange area of ​​the indoor heat exchanger, the front and rear dimensions of the air-conditioning indoor unit are reduced to ensure the requirement of small space for smaller front and rear dimensions of the air-conditioning indoor unit.

[0268] In the present application, the main body may include a fresh air module. The fresh air module may be used to introduce outdoor air into the room.

[0269] The fresh air module may include a fresh air volute.

[0270] The body 100 may include a second cavity located in the body. The first cavity and the second cavity may be sequentially arranged along the length direction of the body.

[0271] The fresh air volute may be arranged in the second cavity. A fan cavity may be formed in the fresh air volute.

[0272] The fresh air module may include a fresh air fan.

[0273] The fresh air fan may be arranged in the fresh air volute. The fresh air fan may include a fresh air fan. The fresh air fan may include a fresh air motor. The fresh air fan may be arranged in the fan cavity. The rotation of the fresh air fan may allow outdoor fresh air to enter the casing from the fresh air inlet, and the outdoor fresh air flows into the room through the fan cavity.

[0274] The fan cavity can be connected to the heat exchange air outlet. The rotation of the fresh air fan allows outdoor fresh air to enter the casing from the fresh air inlet, and the outdoor fresh air flows into the room from the heat exchange air outlet through the fan cavity.

[0275] In the present application, a fresh air outlet is formed on the housing. The fresh air outlet is connected to the fan cavity. The rotation of the fresh air fan causes outdoor fresh air to enter the housing from the fresh air inlet, and the outdoor fresh air flows into the room from the fresh air outlet through the fan cavity.

[0276] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0277] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0278] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0279] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A wall mounted air conditioner indoor unit, characterized in that: include: A main body, wherein the length direction of the main body is from one side end to the other side end, and the main body at least includes a first cavity located inside the main body; The subject includes: A casing, wherein an indoor air inlet is provided on the front side of the casing, an indoor air outlet is provided on the bottom of the casing, and the indoor air outlet and the indoor air inlet are in communication with the first cavity; an indoor heat exchanger, disposed in the first chamber; an indoor fan, arranged in the first cavity and located on a side of the indoor heat exchanger away from the indoor air inlet, the indoor fan drives air from the indoor air inlet into the first cavity to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows out of the first cavity through the indoor air outlet; The indoor heat exchanger comprises: The second heat exchanger; The third section heat exchanger is located at a side of the second section heat exchanger away from the indoor air inlet, and the top end of the third section heat exchanger is connected to the top end of the second section heat exchanger; The housing comprises: A top plate is located above the indoor heat exchanger, with a gap between the top plate and the vertex of the indoor heat exchanger, the minimum gap between the vertex of the indoor heat exchanger and the top plate is a first gap G1, the top plate is arranged on the top of the casing so that its position can be adjusted relative to the indoor heat exchanger, and the size of the first gap G1 changes with the adjustment of the position of the top plate.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The first gap G1 ≥ the first parameter value, and the first parameter value is 5 mm or 6 mm or 7 mm.

3. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: The first gap G1 ≤ the second parameter value, and the second parameter value is 28 mm or 30 mm or 32 mm.

4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The distance between the vertex of the indoor heat exchanger and the vertex of the main body in the height direction of the main body is an eighth distance L8, and the eighth distance increases as the first gap G1 increases, and the eighth distance decreases as the first gap G1 decreases.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The casing includes an air inlet grille arranged on the front side of the casing, the indoor air inlet is formed on the air inlet grille, and the air inlet grille includes a plurality of first grille bars, and the plurality of first grille bars are arranged at intervals in the height direction of the main body. Among two adjacent first grille bars, the bottom end of the upper first grille bar is lower than the top end of the lower first grille bar.

6. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: The housing comprises: A top plate frame, on which at least one top plate mounting position is provided, and the top plate is arranged on the top plate mounting position; The top of the top plate frame is the top of the main body. The top plate frame is replaceable or height-adjustable and is arranged on the top of the casing to change the eighth distance. The top plate is adjusted to the first gap by being arranged on different top plate mounting positions.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: A top plate installation space is formed in the top plate frame, and the bottom of the top plate installation space is communicated with the first cavity; The top plate mounting position includes a top plate supporting portion and a top plate mounting hole, the top plate supporting portion is arranged in the top plate mounting space, the top plate mounting hole is communicated with the top plate mounting space, the top plate is inserted into the top plate mounting cavity through the top plate mounting hole and is located on the top plate supporting portion.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that: The top plate frame includes a top plate frame side plate arranged on the side of the top plate frame, the top plate mounting hole is arranged on the top plate frame side plate, the top plate mounting hole penetrates the top plate frame side plate in the thickness direction of the top plate frame side plate, and the top plate support portion is connected to the inner wall surface of the top plate frame side plate.

9. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: Also includes: A driving device is arranged on the housing and connected to the top plate, and the driving device drives the top plate to move along the height direction of the main body to adjust the installation position of the top plate.

10. A wall mounted air conditioner indoor unit, characterized in that: include: A main body, wherein the length direction of the main body is from one side end to the other side end, and the main body at least includes a first cavity located inside the main body; The subject includes: A casing, wherein an indoor air inlet is provided on the front side of the casing, an indoor air outlet is provided on the bottom of the casing, and the indoor air outlet and the indoor air inlet are in communication with the first cavity; an indoor heat exchanger, disposed in the first chamber; an indoor fan, arranged in the first cavity and located on a side of the indoor heat exchanger away from the indoor air inlet, the indoor fan drives air from the indoor air inlet into the first cavity to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows out of the first cavity through the indoor air outlet; The indoor heat exchanger comprises: The second heat exchanger; The third section heat exchanger is located at a side of the second section heat exchanger away from the indoor air inlet, and the top end of the third section heat exchanger is connected to the top end of the second section heat exchanger; The housing comprises: A top plate, arranged on the top of the casing, the top plate being located above the indoor heat exchanger; There is a gap between the vertex of the indoor heat exchanger and the top plate, and the minimum gap between the vertex of the indoor heat exchanger and the top plate is a first gap G1; There are several top plate mounting positions, and the several top plate mounting positions are arranged along the height direction of the main body; the top plate is arranged on one of the top plate mounting positions, and when the top plate is located on different top plate mounting positions, the size of the first gap is different.

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