Air conditioner indoor unit and air conditioner

Abstract

The present invention provides an air conditioner indoor unit and an air conditioner, the air conditioner indoor unit comprising: a shell, the shell is provided with an air inlet and an air outlet; any group of heat exchangers comprises a first heat exchanger and a second heat exchanger, the first heat exchanger has a plurality of first fins, the second heat exchanger has a second fin, the first fin and the second fin are both inclined relative to a second direction, and the upper end of the first heat exchanger is connected to the upper end of the second heat exchanger, and the lower end of the first heat exchanger is away from the lower end of the second heat exchanger; wherein the first direction is the direction of gravity. The air conditioner indoor unit provided by the present invention increases the heat exchange area within the limited space of the shell, thereby improving the heat exchange efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to an air conditioner indoor unit and an air conditioner. Background Art

[0002] At present, the traditional air conditioners used in bedrooms have the problem of cold wind blowing on people and causing discomfort to users, so more and more air conditioners on the market are using technologies such as "windless feeling" to solve the above problem. However, the fan is always running during air conditioning cooling, and even if the fan speed is reduced, the fan noise problem still exists when sleeping. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides an air conditioner indoor unit.

[0005] A second aspect of the present invention also provides an air conditioner.

[0006] In view of this, the first aspect of the present invention proposes an air-conditioning indoor unit, comprising: a shell, on which an air inlet and an air outlet are provided, and the space where the air-conditioning indoor unit is located is set to have a first direction and a second direction perpendicular to each other, and along the first direction, the air outlet is arranged at the bottom of the shell; at least two groups of heat exchangers are arranged in the shell, and along the second direction, at least two groups of heat exchangers are arranged in sequence; any group of heat exchangers includes a first heat exchanger and a second heat exchanger, the first heat exchanger has a plurality of first fins, and the second heat exchanger has a second fin, a line between an upper end and a lower end of the first fin and a line between an upper end and a lower end of the second fin are both inclined relative to the second direction, and the upper end of the first heat exchanger and the upper end of the second heat exchanger are adjacent to each other, and the lower end of the first heat exchanger and the lower end of the second heat exchanger are far away from each other; wherein the first direction is the direction of gravity.

[0007] The air conditioner indoor unit provided by the present invention comprises a shell and at least two sets of heat exchangers, the shell is provided with an air inlet and an air outlet, the at least two sets of heat exchangers are arranged in the shell, the airflow flows into the shell from the air inlet, and flows out from the air outlet after heat exchange in the heat exchanger. Among them, the upper end of the first heat exchanger and the upper end of the second heat exchanger are arranged adjacent to each other, and the lower end of the first heat exchanger and the lower end of the first heat exchanger are far away from each other, so that the heat exchange area is increased in the limited space of the shell, thereby improving the heat exchange efficiency.

[0008] At the same time, the arrangement of at least two groups of heat exchangers can reduce the length of the air conditioner indoor unit and avoid the situation of narrow and long structure, so as to reasonably utilize the installation space and improve the rationality of the layout of the air conditioner indoor unit. Among them, along the first direction, the air outlet is arranged at the bottom of the shell. When the air conditioner indoor unit performs natural convection cooling, the airflow passes through at least two groups of heat exchangers and becomes cold air for cooling. The density of cold air is greater than that of air. Under the action of gravity, the cold air flows to the air outlet below after heat exchange, and finally enters the room from the air outlet for cooling. After the cold air flows out, negative pressure is formed in the shell, and then the air continues to be attracted to flow into the shell from the air inlet to form an air circulation. In this way, the indoor air is heat exchanged in the form of natural convection, and the entire heat exchange process does not require the operation of the fan, thereby avoiding the noise generated by the fan while ensuring good heat exchange capacity.

[0009] The air conditioner indoor unit provided by the present invention may also have the following additional technical features:

[0010] In the above technical solution, further, along the second direction, there is a gap between two adjacent groups of heat exchangers.

[0011] In the above technical solution, further, it is set that the space where the air-conditioning indoor unit is located has a third direction perpendicular to the first direction and the second direction; in the section perpendicular to the third direction, the cross-sectional shape of any group of heat exchangers is an inverted V-shape.

[0012] In the above technical solution, further, the air-conditioning indoor unit also includes a jet nozzle, and the jet nozzle is arranged between the upper end of the first heat exchanger and the upper end of the second heat exchanger.

[0013] In the above technical solution, further, the air conditioner indoor unit also includes a jet air duct, and the jet air duct is connected to the jet nozzle.

[0014] In the above technical solution, further, the shell includes: an air inlet cover body, on which the air inlet is opened; a base, on which the air inlet cover body is arranged, and on which the air outlet is opened.

[0015] In the above technical scheme, further, the air inlet includes a jet air inlet and a main air inlet; the jet air inlet is opened on the first side wall and the second side wall of the air inlet hood body spaced along the second direction, and the jet air inlet is connected with the jet nozzle; the main air inlet is connected with the air outlet via a heat exchanger; the main air inlet is opened on the first side wall and the second side wall of the air inlet hood body spaced along the second direction; and the main air inlet is opened on the third side wall and the fourth side wall of the air inlet hood body spaced along the third direction, and / or the main air inlet is arranged on the top wall of the air inlet hood body.

[0016] In the above technical solution, further, the shell also includes: a partition, which is arranged between the base and the air inlet hood, and the partition is located at both ends of the air inlet hood; wherein, the partition is arranged at both ends of the air inlet hood along the third direction, and in at least two groups of heat exchangers, the two ends of the two groups of heat exchangers located on both sides along the second direction protrude from the partition along the third direction and enclose an installation cavity with the partition, and the ends of other heat exchangers are connected to the partition.

[0017] In the above technical solution, further, the number of air outlets is at least two, any group of heat exchangers and jet nozzles enclose a cavity, the jet nozzle is connected to the cavity, the cavity is connected to the air outlet, and at least two air outlets are arranged in a one-to-one correspondence with at least two groups of heat exchangers.

[0018] In the above technical solution, further, along the third direction, projection is performed in a plane perpendicular to the third direction; in the obtained first projection plane, along the second direction, the sum of the projection widths of at least two groups of heat exchangers is less than or equal to the difference between the width of the shell and the projection width of the jet nozzle; along the second direction, projection is performed in a plane perpendicular to the second direction; in the obtained second projection plane, along the first direction, an end of the air inlet on the shell away from the air outlet is higher than an end of the heat exchanger away from the air outlet, and an end of the air inlet on the shell close to the air outlet is higher than an end of the heat exchanger close to the air outlet.

[0019] In the above technical solution, further, the number of heat exchangers is three groups, and the three groups of heat exchangers are arranged in sequence along the second direction, and there is a gap between any two adjacent groups of heat exchangers; wherein a jet nozzle is provided between the first heat exchanger and the second heat exchanger of any group of heat exchangers.

[0020] In the above technical solution, further, the angle between the line between the upper end and the lower end of the first fin and the first direction is greater than or equal to 0° and less than or equal to 45°; the angle between the line between the upper end and the lower end of the second fin and the first direction is greater than or equal to 0° and less than or equal to 45°; along the second direction, the gap between the first heat exchanger and the second heat exchanger adjacent to each other in two adjacent groups of heat exchangers, toward the air outlet, is greater than or equal to 5 mm.

[0021] In the above technical solution, further, the first heat exchanger includes a plurality of first heat exchange tubes, a first tube hole is provided on the first fin, and the first heat exchange tubes are inserted into the first tube holes; the second heat exchanger includes a plurality of second heat exchange tubes, a second tube hole is provided on the second fin, and the second heat exchange tubes are inserted into the second tube holes; wherein, the plurality of first heat exchange tubes of the first heat exchanger are arranged in a single row, and the plurality of first heat exchange tubes of the second heat exchanger are arranged in a single row.

[0022] In the above technical solution, further, in a cross section perpendicular to a third direction of the air-conditioning indoor unit, the first heat exchanger and the second heat exchanger are axisymmetrically arranged, and the axis of symmetry of the axisymmetric arrangement extends along the first direction.

[0023] According to a second aspect of the present invention, an air conditioner is further proposed, comprising: an air conditioner indoor unit as proposed in any of the above technical solutions.

[0024] The air conditioner provided in the second aspect of the present invention includes the air conditioner indoor unit proposed by any of the above technical solutions, and therefore has all the beneficial effects of the air conditioner indoor unit.

[0025] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic structural diagram of an air conditioner indoor unit according to another embodiment of the present invention is shown;

[0029] Figure 3 A schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention is shown;

[0030] Figure 4 Another structural schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention is shown;

[0031] Figure 5 A schematic structural diagram of an air conditioner indoor unit according to another embodiment of the present invention is shown;

[0032] Figure 6 Another structural schematic diagram of an air conditioner indoor unit according to another embodiment of the present invention is shown;

[0033] Figure 7 A schematic structural diagram of an air conditioner indoor unit according to another embodiment of the present invention is shown;

[0034] Figure 8 A partial structural schematic diagram of an air-conditioning indoor unit according to an embodiment of the present invention is shown.

[0035] in, Figures 1 to 8 The corresponding relationship between the reference numerals and the component names is as follows:

[0036] 100 air conditioner indoor unit, 102 housing, 102a air inlet cover, 102b base, 1020 first side wall, 1022 second side wall, 1024 third side wall, 1026 fourth side wall, 1028 cavity, 104 air inlet, 1040 main air inlet, 1042 jet air inlet, 106 air outlet, 108 heat exchanger, 1080 first heat exchanger, 1080a first fin, 1080b first heat exchange tube, 10 81 second heat exchanger, 1081a second fin, 1081b second heat exchange tube, 1083 sub-heat exchanger, 1084 first heat exchange part, 1085 accommodating space, 1086 third heat exchanger, 1087 fourth heat exchanger, 1088 second heat exchange part, 110 jet nozzle, 112 jet air duct, 1120 first air duct, 1122 second air duct, 114 fan, 1140 air supply port, 116 partition, 118 water tank.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] Refer to the following Figures 1 to 8 The air conditioner indoor unit 100 and the air conditioner according to some embodiments of the present invention are described.

[0044] Embodiment 1:

[0045] According to an embodiment of the first aspect of the present invention, the present invention provides an air-conditioning indoor unit 100 , comprising: a housing 102 and at least two groups of heat exchangers 108 disposed in the housing 102 .

[0046] It is assumed that the space where the air conditioner indoor unit is located has a first direction, a second direction and a third direction which are perpendicular to each other. Figures 1 to 7 As shown, direction A is the first direction, direction B is the second direction, and direction C is the third direction. Specifically, the first direction is the gravity direction, the second direction is the width direction of the shell 102 , and the third direction is the length direction of the shell 102 .

[0047] Among them, Figure 1 and Figure 2As shown, an air inlet 104 and an air outlet 106 are provided on the shell 102, and the air outlet 106 is provided at the bottom of the shell 102 along the first direction; at least two groups of heat exchangers 108 are provided in the shell 102, and at least two groups of heat exchangers 108 are arranged in sequence along the second direction; any group of heat exchangers 108 includes a first heat exchanger 1080 and a second heat exchanger 1081, the first heat exchanger 1080 has a plurality of first fins 1080a, and the second heat exchanger 1081 has a second fin 1081a, and the line between the upper end and the lower end of the first fin 1080a and the line between the upper end and the lower end of the second fin 1081a are both inclined relative to the second direction, and the upper end of the first heat exchanger 1080 and the upper end of the second heat exchanger 1081 are adjacent to each other, and the lower end of the first heat exchanger 1080 and the lower end of the second heat exchanger 1081 are far away from each other; wherein, the first direction is the direction of gravity.

[0048] The present invention provides a housing 102 and at least two sets of heat exchangers 108. The housing 102 is provided with an air inlet 104 and an air outlet 106. The at least two sets of heat exchangers 108 are arranged in the housing 102. The airflow flows into the housing 102 from the air inlet 104, and flows out from the air outlet 106 after heat exchange through the heat exchanger 108. Along the first direction, the air outlet 106 is arranged at the bottom of the housing 102. When the air conditioner indoor unit 100 performs natural convection cooling, the airflow passes through at least two sets of heat exchangers 108 and becomes cold air for cooling. The density of cold air is greater than that of air. Under the action of gravity, the cold air flows to the air outlet 106 below after heat exchange, and finally enters the room from the air outlet 106 for cooling. After the cold air flows out, negative pressure is formed in the housing 102, and then the air is continuously attracted to flow into the housing 102 from the air inlet 104, forming an air cycle. In this way, the indoor air is heat exchanged in the form of natural convection, and the entire heat exchange process does not require the operation of the fan 114, thereby avoiding the noise generated by the operation of the fan 114 while ensuring good heat exchange capacity. At the same time, the arrangement of at least two groups of heat exchangers 108 can reduce the length of the air conditioner indoor unit 100, avoid the situation of a narrow and long structure, thereby reasonably utilizing the installation space and improving the rationality of the layout of the air conditioner indoor unit 100.

[0049] Among them, the first heat exchanger 1080 includes a plurality of first fins 1080a, and the second heat exchanger 1081 includes a plurality of second fins 1081a. The connecting line between the upper end and the lower end of the first fin 1080a and the connecting line between the upper end and the lower end of the second fin 1081a are both inclined relative to the second direction, and the upper end of the first heat exchanger 1080 and the upper end of the second heat exchanger 1081 are adjacent to each other, and the lower end of the first heat exchanger 1080 and the lower end of the second heat exchanger 1081 are far away from each other. On the one hand, the first fin 1080a and the second fin 1081a are inclined relative to the second direction, which facilitates the collection of condensed water. On the other hand, this arrangement increases the heat exchange area within the limited space of the shell 102, thereby improving the heat exchange efficiency.

[0050] Specifically, in any group of heat exchangers 108, the angle between the line connecting the upper end and the lower end of the first fin 1080a of the first heat exchanger 1080 and the line connecting the upper end and the lower end of the second fin 1081a of the second heat exchanger 1081 is less than 180°. Further, the angle is less than 90°, thereby facilitating the condensed water to flow down along the first fin 1080a and the second fin 1081a, thereby facilitating the collection of the condensed water.

[0051] It is understandable that the housing 102 may be in a rectangular shape or in other shapes, that is, the air-conditioning indoor unit 100 may be designed into different shapes as needed.

[0052] Embodiment 2:

[0053] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, on the basis of the above embodiment, further, along the second direction, there is a gap W between two adjacent groups of heat exchangers 108 .

[0054] In this embodiment, a gap W is provided between two adjacent groups of heat exchangers 108, and indoor return air can flow into the shell 102 through the gap between the two adjacent groups of heat exchangers 108, so that the airflow can enter each side of the heat exchanger 108, thereby improving the heat exchange efficiency of the heat exchanger 108 and further improving the cooling capacity of the heat exchanger 108.

[0055] Furthermore, in two adjacent groups of heat exchangers 108, a gap W is provided between the adjacent first heat exchanger 1080 and the second heat exchanger 1081, so that the airflow can enter the shell 102 through the gap to exchange heat with the first heat exchanger 1080 and the second heat exchanger 1081 located in the middle, thereby improving the heat exchange efficiency.

[0056] Specifically, the bottom of the shell is provided with a return air port connected to the gap between the two adjacent groups of heat exchangers 108. Along the second direction, the air inlet is arranged on the first side wall 1020 and the second side wall 1022 of the shell 102 which are arranged opposite to each other. In this way, in the specific heat exchange process, the air entering the shell 102 from the air inlet 104 on the first side wall 1020 exchanges heat with the first heat exchanger 1080 close to the first side wall 1020, and then flows out from the air outlet 106, and flows out from the air outlet 106 on the second side wall 1022. The air entering the shell 102 through the air inlet 104 exchanges heat with the second heat exchanger 1081 near the second side wall 1022 and then flows out through the air outlet 106. Under the action of the negative pressure in the shell 102, the indoor return air can enter the shell 102 through the return air port through the gap W between the two adjacent groups of heat exchangers 108 to exchange heat with the first heat exchanger 1080 and the second heat exchanger 1081 located in the middle, so that heat exchange can be achieved on each side of the heat exchanger 108, thereby improving the heat exchange efficiency of the heat exchanger 108.

[0057] Embodiment three:

[0058] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, based on any of the above embodiments, further, in a cross section perpendicular to the third direction, the cross-sectional shape of any group of heat exchangers 108 is an inverted V-shape.

[0059] In this embodiment, in the cross section perpendicular to the third direction, the cross section of any group of heat exchangers 108 is in an inverted V-shape. On the one hand, the inverted V-shaped structure enables at least one of the first heat exchanger 1080 and the second heat exchanger 1081 in any group of heat exchangers 108 to be tilted relative to the second direction, thereby increasing the heat exchange area within the limited space of the shell 102. On the other hand, the inverted V-shaped structure can guide the airflow to the bottom of the shell 102, thereby facilitating the natural sinking of cold air and improving the natural convection capacity. In addition, the first heat exchanger 1080 and the second heat exchanger 1081 form an inverted V-shape, which is convenient for the collection of condensed water.

[0060] It is understandable that the cross-sectional shape of any group of heat exchangers 108 may be approximately an inverted V-shape. Of course, the cross-sectional shape of the heat exchanger 108 may not be a V-shape.

[0061] Furthermore, along the second direction, from the bottom of the shell 102 to the top of the shell 102, in any group of heat exchangers 108, the distance between the first heat exchanger 1080 and the second heat exchanger 1081 gradually decreases. That is, the cavity 1028 enclosed by the first heat exchanger 1080 and the second heat exchanger 1081 gradually shrinks from top to bottom. Therefore, after the airflow exchanges heat with the first heat exchanger 1080 and the second heat exchanger 1081, it can gradually move downward under the guidance of the cavity 1028, so that the airflow that becomes cold after heat exchange flows out from the air outlet 106, realizing the natural sinking of cold air and improving the natural convection capacity.

[0062] Embodiment 4:

[0063] like Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, on the basis of any of the above embodiments, further, the air-conditioning indoor unit 100 also includes a jet nozzle 110, and the jet nozzle 110 is arranged between the upper end of the first heat exchanger 1080 and the upper end of the second heat exchanger 1081.

[0064] In this embodiment, the air conditioner indoor unit 100 also includes a jet nozzle 110, which is arranged between the upper end of the first heat exchanger 1080 and the upper end of the second heat exchanger 1081, so that the jet nozzle 110 can spray into the cavity 1028 enclosed by the first heat exchanger 1080 and the second heat exchanger 1081, thereby increasing the air output.

[0065] Furthermore, the jet nozzle 110 abuts against an upper end portion of the first heat exchanger 1080 and an upper end portion of the second heat exchanger 1081 .

[0066] Specifically, when the air conditioner is running, the jet nozzle 110 can spray a jet into the cavity 1028 surrounded by the first heat exchanger 1080 and the second heat exchanger 1081, and after mixing with the airflow entering the cavity 1028 through the air inlet 104, the first heat exchanger 1080, and the second heat exchanger 1081, the jet flows into the room through the air outlet 106 to achieve heat exchange, so that the airflow flowing into the room through the air outlet 106 includes two parts of airflow, namely, natural convection and jet. At the same time, when the jet is sprayed, a negative pressure can be formed in the cavity 1028, thereby increasing the airflow of natural convection, that is, the effect of heat exchange of natural convection and jet is achieved, and the heat exchange capacity of the indoor unit is greatly improved.

[0067] Furthermore, if Figure 1 and Figure 2 As shown, the air conditioning indoor unit 100 further includes a jet air duct 112 , and the jet air duct 112 is connected to the jet nozzle 110 .

[0068] In this embodiment, the air conditioner indoor unit 100 further includes a jet air duct 112 , which is connected to the jet nozzle 110 , so that the air flow flows from the jet air duct 112 to the jet nozzle 110 , and then is sprayed toward the cavity 1028 by the jet nozzle 110 .

[0069] Among them, the cross-sectional shape of the jet nozzle 110 can be a circular hole, a strip hole or a polygonal hole, and the number of the jet nozzles 110 is multiple, or the jet nozzle 110 is a long strip opening structure consistent with the extension direction of the jet air duct 112. By setting the jet nozzle 110, the injection speed of the airflow entering the shell 102 can be further adjusted, and then injected into the cavity 1028 through the jet nozzle 110, thereby achieving the effect of guiding the natural convection airflow and accelerating the heat exchange efficiency.

[0070] Furthermore, if Figure 3 As shown, the air conditioner indoor unit 100 also includes a fan 114, and the air supply port 1140 of the fan 114 is connected to the jet air duct 112 to realize active air supply through the jet nozzle 110, so that the wind delivered from the air outlet 106 consists of two parts, one part is the jet wind, and the other part is the guided wind.

[0071] In this way, the air-conditioning indoor unit 100 has at least two operating modes, namely, the strong wind mode and the natural wind mode. When the air-conditioning indoor unit 100 is in the strong wind mode, the fan 114 is turned on, and a part of the air flows through a part of the heat exchanger 108 to the inlet of the fan 114, and is sprayed toward the cavity 1028 by the jet nozzle 110 to form a jet wind; another part of the air flows through the heat exchanger 108 to the shell 102 and then directly flows out from the air outlet 106. That is, when the fan 114 is turned on, the air outlet of the air-conditioning indoor unit 100 includes jet wind and natural convection wind. The air outlet is further increased by the two air outlet modes of jet wind and natural convection wind. At the same time, the jet wind and natural convection wind can relatively enhance each other's air outlet effects, thereby achieving a gain effect.

[0072] Specifically, in the natural wind mode, the fan 114 is turned off, and the air-conditioning indoor unit 100 can exhaust air by natural convection, that is, the indoor return air enters the shell 102 of the air-conditioning indoor unit 100 through the air inlet 104, and directly flows to the air outlet 106 after heat exchange with the heat exchanger 108. The entire heat exchange process does not require the operation of the fan 114, thereby avoiding the noise generated by the operation of the fan 114 while ensuring good heat exchange capacity, and achieving windless air outlet.

[0073] Furthermore, there are multiple jet air ducts 112, and any group of heat exchangers 108 is correspondingly provided with a jet air duct 112, each jet air duct 112 is provided with a jet nozzle 110, and there is one fan 114. The air supply port 1140 of one fan 114 is connected with multiple jet air ducts 112 at the same time. In this way, turning on one fan 114 can realize air supply to multiple jet air ducts 112. The structure is simple, the production cost is reduced, and the noise generated by turning on one fan 114 is relatively small. That is, this setting method reduces the noise caused by turning on the fan 114.

[0074] In one embodiment, Figures 3 to 6 As shown, the fan 114 is centrally arranged, that is, the fan 114 is arranged in the middle of the jet air duct 112. Specifically, the jet air duct 112 includes two first air ducts 1120 and a second air duct 1122. Along the third direction, the first air duct 1120 and the second air duct 1122 are respectively arranged on both sides of the fan 114. In this way, air is supplied to the first air duct 1120 and the second air duct 1122 on both sides by the fan 114, so that the airflow of each part of the cavity 1028 in the third direction is more uniform.

[0075] In another embodiment, Figure 7 As shown, the fan 114 is disposed at the end of the jet air duct 112 , which facilitates maintenance and installation of the fan 114 .

[0076] Furthermore, each group of heat exchangers 108 is correspondingly provided with two jet devices, each of which includes a jet air duct 112 and a jet fan 114, wherein along the third direction, the two fans 114 of the two jet devices are respectively arranged at both ends of the heat exchanger 108.

[0077] Furthermore, each group of heat exchangers 108 is correspondingly provided with a fan 114 , and the fan 114 can be arranged in the middle of the jet air duct 112 , and can also be arranged at one end of the jet air duct 112 .

[0078] Embodiment five:

[0079] like Figure 8 As shown, according to an embodiment of the present invention, on the basis of any of the above embodiments, further, the shell 102 includes: an air inlet cover 102a, and an air inlet 104 is opened on the air inlet cover 102a; a base 102b, the air inlet cover 102a is arranged on the base 102b, and the air outlet 106 is opened on the base 102b.

[0080] In this embodiment, the housing 102 includes: an air inlet cover 102a and a base 102b, the air inlet cover 102a is arranged on the base 102b, and the air inlet 104 is opened in the air inlet cover 102a. The air to be heat exchanged can enter the inner side of the housing 102 through the air inlet cover 102a to participate in the heat exchange. At the same time, the air inlet cover 102a can also protect the heat exchanger 108 arranged on the inner side of the housing 102. The airflow after heat exchange in the heat exchanger 108 will flow into the room through the air outlet 106 opened on the base 102b.

[0081] Embodiment six:

[0082] like Figure 3 and Figure 5 As shown, according to one embodiment of the present invention, on the basis of any of the above embodiments, further, the air inlet 104 includes a jet air inlet 1042 and a main air inlet 1040; the jet air inlet 1042 is opened on the first side wall 1020 and the second side wall 1022 of the air inlet cover 102a spaced apart along the second direction, and the jet air inlet 1042 is connected to the jet nozzle 110; the main air inlet 1040 is connected to the air outlet 106 via the heat exchanger 108; the main air inlet 1040 is opened on the first side wall 1020 and the second side wall 1022 of the air inlet cover 102a spaced apart along the second direction; and the main air inlet 1040 is opened on the third side wall 1024 and the fourth side wall 1026 of the air inlet cover 102a along the third direction, and / or the top wall of the air inlet cover 102a.

[0083] In this embodiment, the air inlet 104 includes a jet air inlet 1042 and a main air inlet 1040, the jet air inlet 1042 is arranged on the first side wall 1020 and the second side wall 1022 spaced apart along the second direction of the air inlet cover 102a, the jet air inlet 1042 is connected to the jet nozzle 110, the main air inlet 1040 is arranged on the first side wall 1020 and the second side wall 1022 of the air inlet cover 102a arranged opposite to each other along the second direction, and the main air inlet 1040 is arranged on the third side wall 1024 and the fourth side wall 1026 of the air inlet cover 102a in the third direction, and / or the main air inlet 1040 is arranged on the top wall of the air inlet cover 102a That is, the main air inlet 1040 is arranged on the first side wall 1020 and the second side wall 1022 in the second direction of the air inlet cover 102a, the third side wall 1024 and the fourth side wall 1026 in the third direction, or the main air inlet 1040 is arranged on the first side wall 1020 and the second side wall 1022 in the second direction of the air inlet cover 102a, the third side wall 1024 and the fourth side wall 1026 in the third direction, and the top wall of the air inlet cover 102a along the first direction, or the main air inlet 1040 is arranged on the first side wall 1020 and the second side wall 1022 in the second direction of the air inlet cover 102a, and the top wall of the air inlet cover 102a along the first direction. In this way, the air inlet range is greatly increased, thereby increasing the air inlet and air outlet volumes, and improving the heat exchange performance of the air conditioner indoor unit 100.

[0084] Specifically, when the fan 114 is turned on, a portion of the indoor return air passes through the jet air inlet 1042 for heat exchange and flows to the inlet of the fan 114, and then flows from the jet air duct 112 to the jet nozzle 110, and is then ejected by the jet nozzle 110. A high-speed and low-pressure fluid area is formed under the jet nozzle 110, so that a negative pressure is formed in the cavity 1028, thereby attracting external air flow to flow into the shell 102 from the main air inlet 1040, so that it exchanges heat with the heat exchanger 108 corresponding to the main air inlet 1040 and flows to the air outlet 106, thereby enhancing the natural convection capacity, that is, the jet outlet and the natural convection outlet can enhance each other's air outlet effects, thereby achieving a gain effect.

[0085] Specifically, Figure 5 As shown, when the fan 114 is centrally located, the main air inlet 1040 is located on both sides of the jet air inlet 1042 along the third direction; when the fan 114 is located at one end of the heat exchanger 108, the main air inlet 1040 is located at one end of the jet air inlet 1042 along the third direction.

[0086] Embodiment seven:

[0087] According to one embodiment of the present invention, on the basis of any of the above embodiments, further: the shell 102 also includes a partition 116, the partition 116 is arranged between the base 102b and the air inlet cover 102a, and the partition 116 is located at both ends of the air inlet cover 102a; wherein, the partition 116 is arranged at both ends of the air inlet cover 102a along the third direction, and in at least two groups of heat exchangers 108, the two ends of the two groups of heat exchangers 108 located on both sides along the second direction protrude from the partition 116 along the third direction and are surrounded by the partition 116 to form an installation cavity, and the ends of other heat exchangers 108 are connected to the partition.

[0088] In this embodiment, the housing 102 further includes a partition 116, which is disposed between the base 102b and the air inlet cover 102a, and the partition 116 is connected to the air inlet cover 102a and the base 102b, so that the air inlet 104 can be divided into a plurality of independent air inlet areas, so that the airflow participating in the natural convection heat exchange and the airflow participating in the jet heat exchange do not interfere with each other, which is conducive to ensuring the good heat exchange capacity of the natural convection heat exchange and the jet heat exchange, thereby improving the overall heat exchange capacity of the air conditioner indoor unit 100. The end of the heat exchanger 108 is connected to the partition 116, and the partition 116 plays a role in supporting and fixing the heat exchanger 108, thereby improving the structural stability of the air conditioner indoor unit 100.

[0089] In one embodiment, Figure 7 As shown, when the fan 114 is arranged at the end of the heat exchanger 108, the heat exchanger 108 is arranged in such a manner that along the second direction, the ends of the first heat exchanger 1080 close to the first side wall 1020 and the second heat exchanger 1081 close to the second side wall 1022 protrude from the other first heat exchangers 1080 and the second heat exchangers 1081 along the third direction, and enclose a mounting cavity with the partition 116 for placing the fan 114, and the ends of the other heat exchangers 108 abut against the partition 116. In this way, the partition 116 separates the air inlet 104 into the main air inlet 1040 and the drainage air inlet 104, and separates the drainage air inlet 104 from the main air inlet 1040, so that the jet wind and the natural convection airflow do not interfere with each other.

[0090] In another embodiment, Figure 4 and Figure 5 As shown, when the fan 114 is arranged in the middle of the heat exchanger 108, two partitions 116 are also arranged in the middle of the heat exchanger 108. The two partitions 116 divide the air inlet 104 of the housing 102 in the second direction into a jet air inlet 1042 and main air inlets 1040 located on both sides of the jet air inlet 1042, and divide the cavity 1028 into an accommodating space 1085 and sub-cavities located on both sides of the accommodating space 1085. The fan 114 is arranged in the accommodating space 1085. Accordingly, as Figure 5 and Figure 8As shown, the heat exchanger 108 is arranged as follows: along the third direction, any group of heat exchangers 108 includes two sub-heat exchangers 1083 arranged at intervals, any sub-heat exchanger 1083 includes a first heat exchange part 1084 and a second heat exchange part 1088, the first heat exchange part 1084 is arranged at intervals along the second direction, and the second heat exchange part 1088 is arranged between the two first heat exchange parts 1084, wherein a part of the first heat exchange part 1084 is located in the sub-cavity, and the other part extends into the accommodating space 1085, and the second heat exchange part 1088 is completely located in the sub-cavity, the main air inlet 1040 is connected to the air outlet 106 through the two sub-heat exchangers 1083, and the jet air inlet 1042 is connected to the fan 114 through the first heat exchange part 1084, so that the jet air outlet and the natural convection airflow do not interfere with each other.

[0091] Furthermore, the second heat exchange portion 1088 includes a plurality of heat exchange segments, and the plurality of heat exchange segments are arranged in a wave shape along the second direction.

[0092] Embodiment eight:

[0093] like Figure 1 As shown, according to one embodiment of the present invention, on the basis of any of the above embodiments, further, the number of air outlets 106 is at least two, any group of heat exchangers 108 and jet nozzles 110 together form a cavity 1028, the jet nozzle 110 is connected to the cavity 1028, the cavity 1028 is connected to the air outlet 106, and at least two air outlets 106 are arranged in a one-to-one correspondence with at least two groups of heat exchangers 108.

[0094] In this embodiment, there are two air outlets 106, and each group of heat exchangers 108 is provided with an air outlet 106, and the heat exchanger 108 and the jet nozzle 110 are enclosed to form a cavity 1028. When the air conditioner is running, the jet nozzle 110 can spray a jet into the cavity 1028, and after mixing with the airflow entering the cavity 1028 through the air inlet 104, the first heat exchanger 1080, and the second heat exchanger 1081, it flows into the room through the air outlet 106 to achieve heat exchange, so that the airflow flowing into the room through the air outlet 106 includes two parts of airflow, namely, natural convection and jet. At the same time, the jet can form a negative pressure in the cavity 1028 when it is sprayed, thereby increasing the airflow of natural convection, that is, the effect of heat exchange of natural convection and jet is achieved, which greatly improves the heat exchange capacity of the indoor unit.

[0095] Embodiment nine:

[0096] According to one embodiment of the present invention, on the basis of any of the above embodiments, further, along the third direction, projection is performed in a plane perpendicular to the third direction; in the obtained first projection plane, along the second direction, the sum of the projection widths of at least two groups of heat exchangers 108 is less than or equal to the difference between the width of the shell 102 and the projection width of the jet nozzle 110; along the second direction, projection is performed in a plane perpendicular to the second direction; in the obtained second projection plane, along the first direction, the end of the air inlet 104 on the shell 102 away from the air outlet 106 is higher than the end of the heat exchanger 108 away from the air outlet 106, and the end of the air inlet 104 on the shell 102 close to the air outlet 106 is higher than the end of the heat exchanger 108 close to the air outlet 106.

[0097] In this embodiment, the sum of the widths of the projections of all the first heat exchangers 1080 and the second heat exchangers 1081 in the second direction is close to the difference between the width of the shell 102 in the second direction and the width of the jet nozzle 110 in the second direction, that is, at least two groups of heat exchangers 108 are compactly arranged in the shell 102, and the internal space of the shell 102 is fully utilized to achieve a larger cooling capacity. At the same time, the compact arrangement of the heat exchangers 108 is conducive to reducing the gap between the first heat exchanger 1080 and the second heat exchanger 1081 and the jet nozzle 110, so that the airflow entering the shell 102 through the top of the shell 102 can flow to the air outlet 106 after heat exchange with the first heat exchanger 1080 and the second heat exchanger 1081, which is conducive to improving the heat exchange effect of the air-conditioning indoor unit, reducing energy loss, and improving the air-conditioning energy efficiency.

[0098] Embodiment ten:

[0099] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, on the basis of any of the above embodiments, further: the number of heat exchangers 108 is three groups, and along the second direction, the three groups of heat exchangers 108 are arranged in sequence, and there is a gap between any two adjacent groups of heat exchangers 108; wherein, a jet nozzle 110 is provided between the first heat exchanger 1080 and the second heat exchanger 1081 of any group of heat exchangers 108.

[0100] In this embodiment, the number of heat exchangers 108 is three groups, and the three groups of heat exchangers 108 are arranged sequentially along the second direction, which reduces the length of the air-conditioning indoor unit 100 in the third direction and avoids the situation of a narrow and long structure, thereby rationally utilizing the installation space and improving the rationality of the layout of the air-conditioning indoor unit 100.

[0101] Embodiment eleven:

[0102] like Figure 1 and Figure 2As shown, according to an embodiment of the present invention, on the basis of any of the above embodiments, further: the angle α1 between the line between the upper end and the lower end of the first fin 1080a and the first direction is greater than or equal to 0°, and less than or equal to 45°; the angle between the line between the upper end and the lower end of the second fin 1081a and the first direction is greater than or equal to 0°, and less than or equal to 45°; along the second direction, the gap between the first heat exchanger 1080 and the second heat exchanger 1081 that are adjacent to each other and located in two adjacent groups of heat exchangers 108, toward one end of the air outlet 106 is greater than or equal to 5 mm.

[0103] In this embodiment, if the angle α1 between the line connecting the upper end and the lower end of the first fin 1080a of the first heat exchanger 1080 and the first direction is too large, the condensed water will drip directly, and if the angle α1 is too small, the heat exchange capacity will be reduced, thereby reducing the natural convection capacity. Therefore, the angle α1 is designed to be greater than or equal to 0° and less than or equal to 45°, which not only ensures the heat exchange effect but also enables the condensed water to flow down along the first fin 1080a to avoid direct dripping of the condensed water; if the angle α2 between the line connecting the upper end and the lower end of the second fin 1081a of the second heat exchanger 1081 and the first direction is too large, the condensed water will drip directly, and if the angle α2 is too small, the heat exchange capacity will be reduced, thereby reducing the natural convection capacity. Therefore, the angle α2 is designed to be greater than or equal to 0° and less than or equal to 45°, which not only ensures the heat exchange effect but also enables the condensed water to flow down along the second fin 1081a to avoid direct dripping of the condensed water.

[0104] In two adjacent groups of heat exchangers 108, the gap between the first heat exchanger 1080 and the second heat exchanger 1081 gradually increases from the bottom of the shell 102 to the top of the shell 102. Therefore, the gap between the ends of the first heat exchanger 1080 and the second heat exchanger 1081 close to the air inlet 104 is smaller. If the gap is too small, it will affect the indoor return air effect of this part. Therefore, the gap W is set to be greater than or equal to 5 mm, so that the indoor return air entering the shell 102 through the gap can pass through the first heat exchanger 1080 and the second heat exchanger 1081 on both sides respectively, so that the return air of the two adjacent groups of heat exchangers 108 does not interfere with each other.

[0105] Further, the ratio of the gap between two adjacent first fins 1080a of the first heat exchanger 1080 to the width of any first fin 1080a is greater than or equal to 0.1 and less than or equal to 0.45. The ratio of the gap between two adjacent second fins 1081a of the second heat exchanger 1081 to the width of any second fin 1081a is greater than or equal to 0.1 and less than or equal to 0.45.

[0106] In this embodiment, by setting the ratio of the fin gap to the fin width, it is beneficial to increase the temperature difference before and after the heat exchange through the heat exchanger 108, which can effectively improve the natural convection effect and improve the performance of the air conditioner indoor unit 100. Therefore, the ratio of the fin gap to the fin width is designed to be between 0.1 and 0.45, which not only ensures the heat exchange effect, but also reduces the resistance of the air flow through the fins.

[0107] Embodiment 12:

[0108] like Figure 1 As shown, according to an embodiment of the present invention, on the basis of any of the above embodiments, further: the first heat exchanger 1080 includes a plurality of first heat exchange tubes 1080b, the first fin 1080a is provided with a first tube hole, and the first heat exchange tube 1080b is inserted into the first tube hole; the second heat exchanger 1081 includes a plurality of second heat exchange tubes 1081b, the second fin 1081a is provided with a second tube hole, and the second heat exchange tube 1081b is inserted into the second tube hole; wherein, the plurality of first heat exchange tubes 1080b of the first heat exchanger 1080 are arranged in a single row, and the plurality of first heat exchange tubes 1080b of the second heat exchanger 1081 are arranged in a single row.

[0109] In this embodiment, the first heat exchanger 1080 includes a plurality of first heat exchange tubes 1080b, the second heat exchanger 1081 includes a plurality of second heat exchange tubes 1081b, and the plurality of first heat exchange tubes 1080b of the first heat exchanger 1080 are arranged in a row along the length direction of the first fin 1080a (e.g. Figure 1 The second heat exchange tubes 1081b of the second heat exchanger 1081 are arranged in a row along the length direction of the first fin 1080a (as shown in the dashed line a). Figure 1 In this way, it is convenient to install the first heat exchange tube 1080b and the first fin 1080a, and the second heat exchange tube 1081b and the second fin 1081a. At the same time, the single-row arrangement is also conducive to improving the heat exchange efficiency.

[0110] Among them, the first fin 1080a is provided with a plurality of first tube holes for the first heat exchange tube 1080b to pass through, so as to realize the heat exchange between the first heat exchange tube 1080b and the first fin 1080a, and the second fin 1081a is provided with a plurality of second tube holes for the second heat exchange tube 1081b to pass through, so as to realize the heat exchange between the second heat exchange tube 1081b and the second fin 1081a.

[0111] Embodiment 13:

[0112] According to one embodiment of the present invention, on the basis of any of the above embodiments, further: in a cross section perpendicular to the third direction of the air-conditioning indoor unit 100, the first heat exchanger 1080 and the second heat exchanger 1081 are axially symmetrically arranged, and the axis of symmetry of the axially symmetrical arrangement extends along the first direction.

[0113] In this embodiment, the first heat exchanger 1080 and the second heat exchanger 1081 are symmetrically arranged along the symmetry axis of the first direction, so that the first heat exchanger 1080 and the second heat exchanger 1081 can increase the heat exchange area within a limited space, that is, form a larger cavity 1028, so that the air can completely pass through the heat exchanger 108 for heat exchange before flowing out from the air outlet 106.

[0114] Of course, the first heat exchanger 1080 and the second heat exchanger 1081 may not be completely symmetrical, that is, a certain deviation is allowed. For example, the inclination angle of the first heat exchanger 1080 relative to the first direction is not more than 5° different from the inclination angle of the second heat exchanger 1081 relative to the first direction; the inclination angle of the third heat exchanger 1086 relative to the first direction is not more than 5° different from the inclination angle of the fourth heat exchanger 1087 relative to the first direction.

[0115] Embodiment 14:

[0116] like Figure 2 As shown, according to an embodiment of the present invention, on the basis of any of the above embodiments, further: a third heat exchanger 1086 is spliced ​​below the first heat exchanger 1080, and a fourth heat exchanger 1087 is spliced ​​below the second heat exchanger 1081. Therefore, in two adjacent groups of heat exchangers 108, the gap between the ends of the first heat exchanger 1080 and the second heat exchanger 1081, which are respectively located in the two groups of heat exchangers 108 and are adjacent, and close to the air outlet 106 affects the gap between the third heat exchanger 1086 and the fourth heat exchanger 1087 below. Therefore, for the air-conditioning indoor unit 100 provided with the third heat exchanger 1086 and the fourth heat exchanger 1087, in two adjacent groups of heat exchangers 108, the gap W between the ends of the first heat exchanger 1080 and the second heat exchanger 1081, which are respectively located in the two groups of heat exchangers 108 and are adjacent, and close to the air outlet 106 is greater than or equal to 10 mm.

[0117] Further, the angle between the wall surface of the fin of the third heat exchanger 1086 facing the fourth heat exchanger 1087 and the first direction is greater than or equal to 0° and less than or equal to 10°. The angle between the wall surface of the fin of the fourth heat exchanger 1087 facing the third heat exchanger 1086 and the first direction is greater than or equal to 0° and less than or equal to 10°.

[0118] In this embodiment, the third heat exchanger 1086 can be arranged along the first direction, and an error of plus or minus 10° is allowed between the third heat exchanger 1086 and the first direction, thereby reducing the difficulty of installing the third heat exchanger 1086. At the same time, the angle between the third heat exchanger 1086 and the first direction is designed to be between 0° and 10°, so that the condensed water on the third heat exchanger 1086 flows down along the fins. The fourth heat exchanger 1087 can be arranged along the first direction, and an error of plus or minus 10° is allowed between the fourth heat exchanger 1087 and the first direction, thereby reducing the difficulty of installing the fourth heat exchanger 1087. At the same time, the angle between the fourth heat exchanger 1087 and the first direction is designed to be between 0° and 10°, so that the condensed water on the fourth heat exchanger 1087 flows down along the fins.

[0119] Furthermore, if Figure 1 , Figure 2 and Figure 7 As shown, the air conditioner indoor unit 100 further includes: a plurality of water receiving tanks 118 disposed in the shell 102 , and the bottoms of the third heat exchanger 1086 and the fourth heat exchanger 1087 are both provided with water receiving tanks 118 .

[0120] In this embodiment, the air conditioner indoor unit 100 includes a plurality of water receiving tanks 118 for holding condensed water. The plurality of water receiving tanks 118 are respectively arranged at the bottom of the third heat exchanger 1086 and the fourth heat exchanger 1087, which not only ensures the circulation effect of the air flow, but also can collect the condensed water to prevent the condensed water from dripping directly.

[0121] It should be noted that if the third heat exchanger 1086 and the fourth heat exchanger 1087 are not provided, the water receiving tank 118 is placed at the bottom of the first heat exchanger 1080 and the second heat exchanger 1081 .

[0122] Embodiment 15:

[0123] According to a second aspect of the present invention, an air conditioner is further provided, comprising: an air conditioner indoor unit 100 as provided in any of the above embodiments.

[0124] The air conditioner provided in the second aspect of the present invention comprises the air conditioner indoor unit 100 proposed in any of the above embodiments, and therefore has all the beneficial effects of the air conditioner indoor unit 100.

[0125] Furthermore, the air conditioner also includes a control system, which can obtain the working mode instructions of the air conditioner, and control the air conditioner indoor unit 100 to perform natural convection heat exchange, or self-heating convection heat exchange and active heat exchange of the fan 114 according to the working mode instructions, so as to meet the different needs of users and maximize the user's comfort.

[0126] Specifically, the air conditioner indoor unit 100 provided by the present invention can be applied to multiple products such as household air conditioners, central air conditioner multi-split units, commercial air curtain units, and commercial air conditioner indoor terminals.

[0127] Embodiment 16:

[0128] According to a specific embodiment of the present invention, the present invention provides a large heat exchange capacity in the case of a compact volume in the shell 102 by tilting the first heat exchanger 1080 and the second heat exchanger 1081. In addition, the heat exchangers 108 are arranged in parallel to meet the top and side air intake on both sides of the heat exchanger 108, which greatly improves the heat exchange efficiency and air volume, and can achieve a large performance improvement in both active and passive strong wind modes and natural wind modes. At the same time, the parallel arrangement of the heat exchangers 108 can avoid the appearance of a single narrow and long air conditioner indoor unit 100 by making the length and width of the shell 102 interchangeable.

[0129] like Figures 3 to 7 As shown, taking three heat exchangers 108 in parallel as an example, the strong wind mode includes but is not limited to: Figure 5 As shown, the centrally placed three fans 114 and six-way air supply mode, that is, the fans 114 are arranged in the middle of the jet air duct 112, and each fan 114 is connected to a jet air duct 112, forming a six-way air supply; Figure 3 and Figure 4 As shown, a six-way air supply method with a centrally mounted single fan 114 is used, that is, the fan 114 is disposed in the middle of the jet air duct 112, and one fan 114 is connected to all the jet air ducts 112, thereby forming a six-way air supply of one fan 114; Figure 7 As shown, a three-way air supply mode with three fans 114 on a single side, that is, the fan 114 is arranged at one end of the jet air duct 112, and each jet air duct 112 is arranged corresponding to a group of heat exchangers 108, thereby forming a three-way air supply mode with three fans 114; a six-way air supply mode with six fans 114 on both sides, that is, fans 114 are arranged on both sides of the same group of heat exchangers 108, and each fan 114 is corresponding to a jet air duct 112, so that a group of heat exchangers 108 corresponds to two fans 114 and two jet air ducts 112, realizing a six-way air supply mode with six fans 114.

[0130] In the natural wind mode, the fan 114 does not work at all, so there is no jet air supply. The arrangement of the heat exchanger 108 is completely relied upon to achieve sufficient heat exchange and enhance the sinking of cold air and reduce the air flow resistance. The indoor return air will enter the shell 102 from the main air inlet 1040 in the natural convection mode, and then enter the room downward from the air outlet 106 along the first direction, quietly completing the indoor cooling while the user can hardly feel the wind.

[0131] In order to achieve a better technical effect, it is necessary to meet the following requirements: the two sub-heat exchangers 1083 should be able to fully cover the air inlet 104 area in the third direction and the first direction to ensure that no wind enters without passing through the heat exchanger 108. The projections of the two sub-heat exchangers 1083 in the second direction and the first direction should also cover the air circulation area as much as possible to ensure that the air sinking effect is optimal in both modes.

[0132] The invention utilizes the parallel arrangement of the heat exchangers 108, which can provide a large natural convection cooling capacity in a compact volume, and can shorten the length of the shell 102 in the third direction, while improving the cooling efficiency in the two modes, so that the whole machine is adjustable in length and width. The indoor unit of the invention can have both strong wind mode and natural wind mode. The strong wind mode can reduce the load of the fan 114 air volume while meeting the total cooling capacity, and achieve the effect of reducing noise to a certain extent. In the natural wind mode, there is no fan 114 noise at all, and the special arrangement of the heat exchanger 108 is used to achieve indoor windless cooling.

[0133] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: A shell, wherein an air inlet and an air outlet are provided on the shell, and the space where the air conditioner indoor unit is located is set to have a first direction and a second direction perpendicular to each other, and along the first direction, the air outlet is provided at the bottom of the shell; At least two groups of heat exchangers are arranged in the shell, and the at least two groups of heat exchangers are arranged in sequence along the second direction; Any group of the heat exchangers includes a first heat exchanger and a second heat exchanger, the first heat exchanger has a plurality of first fins, the second heat exchanger has a second fin, the connecting line between the upper end and the lower end of the first fin and the connecting line between the upper end and the lower end of the second fin are both arranged obliquely relative to the second direction, and the upper end of the first heat exchanger and the upper end of the second heat exchanger are arranged adjacent to each other, and the lower end of the first heat exchanger and the lower end of the second heat exchanger are far away from each other; Wherein, the first direction is the direction of gravity; Along the second direction, there is a gap between two adjacent groups of the heat exchangers; The bottom of the shell is provided with a return air port communicating with the gap between two adjacent groups of heat exchangers; Along the second direction, the air inlet is arranged on a first side wall and a second side wall of the shell that are oppositely arranged.

2. The air conditioner indoor unit according to claim 1, characterized in that: Setting the space where the air conditioner indoor unit is located to have a third direction perpendicular to the first direction and the second direction; In a cross section perpendicular to the third direction, the cross section of any group of the heat exchangers is in an inverted V shape.

3. The air conditioner indoor unit according to claim 2, characterized in that: Also includes: A jet nozzle is disposed between an upper end portion of the first heat exchanger and an upper end portion of the second heat exchanger.

4. The air conditioner indoor unit according to claim 3, characterized in that: Also includes: A jet air duct is connected to the jet nozzle.

5. The air conditioner indoor unit according to claim 4, characterized in that: The housing comprises: An air inlet cover, wherein the air inlet is provided on the air inlet cover; A base, the air inlet cover is arranged on the base, and the air outlet is opened on the base.

6. The air conditioner indoor unit according to claim 5, characterized in that: The air inlet comprises a jet air inlet and a main air inlet; The jet air inlet is provided on the first side wall and the second side wall of the air inlet cover body spaced apart along the second direction, and the jet air inlet is connected to the jet nozzle; The main air inlet is connected to the air outlet via the heat exchanger; The main air inlet is provided on a first side wall and a second side wall of the air inlet cover body spaced apart along the second direction; and The main air inlet is opened on the third side wall and the fourth side wall of the air inlet cover body which are spaced apart along the third direction, and / or the main air inlet is arranged on the top wall of the air inlet cover body.

7. The air conditioner indoor unit according to claim 5, characterized in that: The housing further comprises: A partition, the partition being arranged between the base and the air inlet cover; Wherein, the partition is arranged at both ends of the air inlet cover along the third direction. Among the at least two groups of heat exchangers, the two ends of the two groups of heat exchangers located on both sides along the second direction protrude from the partition along the third direction and enclose an installation cavity with the partition, and the ends of the other heat exchangers are connected to the partition.

8. The air conditioner indoor unit according to any one of claims 3 to 7, characterized in that: The number of the air outlets is at least two, and any group of the heat exchanger and the jet nozzle together form a cavity, the jet nozzle is connected to the cavity, the cavity is connected to the air outlet, and at least two of the air outlets are arranged in a one-to-one correspondence with at least two groups of the heat exchangers.

9. The air conditioner indoor unit according to any one of claims 3 to 7, characterized in that: Projecting along the third direction onto a plane perpendicular to the third direction; In the obtained first projection plane, along the second direction, the sum of the projection widths of the at least two groups of heat exchangers is less than or equal to the difference between the width of the shell and the projection width of the jet nozzle; Projecting along the second direction onto a plane perpendicular to the second direction; In the obtained second projection plane, along the first direction, the end of the air inlet on the shell away from the air outlet is higher than the end of the heat exchanger away from the air outlet, and the end of the air inlet on the shell close to the air outlet is higher than the end of the heat exchanger close to the air outlet.

10. The air conditioner indoor unit according to any one of claims 3 to 7, characterized in that: The number of the heat exchangers is three groups, and along the second direction, the three groups of heat exchangers are arranged in sequence, and there is a gap between any two adjacent groups of heat exchangers; Wherein, the jet nozzle is provided between the first heat exchanger and the second heat exchanger in any group of the heat exchangers.

11. The air conditioner indoor unit according to any one of claims 1 to 7, characterized in that: An angle between a line connecting the upper end and the lower end of the first fin and the first direction is greater than or equal to 0° and less than or equal to 45°; An angle between a line connecting the upper end and the lower end of the second fin and the first direction is greater than or equal to 0° and less than or equal to 45°; Along the second direction, a distance between the first heat exchanger and the second heat exchanger that are adjacent to each other and located in two adjacent groups of the heat exchangers and facing the air outlet is greater than or equal to 5 mm.

12. The air conditioner indoor unit according to any one of claims 1 to 7, characterized in that: The first heat exchanger includes a plurality of first heat exchange tubes, the first fin is provided with a first tube hole, and the first heat exchange tube is inserted into the first tube hole; The second heat exchanger comprises a plurality of second heat exchange tubes, the second fins are provided with second tube holes, and the second heat exchange tubes are inserted into the second tube holes; Wherein, the plurality of the first heat exchange tubes of the first heat exchanger are arranged in a single row, and the plurality of the first heat exchange tubes of the second heat exchanger are arranged in a single row.

13. The air conditioner indoor unit according to any one of claims 1 to 7, characterized in that: In a cross section perpendicular to a third direction of the air-conditioning indoor unit, the first heat exchanger and the second heat exchanger are axisymmetrically arranged, and the axis of symmetry of the axisymmetric arrangement extends along the first direction.

14. An air conditioner, characterized in that: include: An air conditioning indoor unit according to any one of claims 1 to 13.

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