Air conditioner indoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioning, in particular to an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a shell, a fan and at least one heat exchanger assembly. A heat exchange air duct, an air inlet and an air outlet are defined by the shell, the air outlet communicates with the top of the heat exchange air duct, and the air inlet communicates with the bottom of the heat exchange air duct. The fan is located at or near the air outlet and used for promoting heat exchange air flow to flow from bottom to top. Each heat exchanger assembly is obliquely arranged in the heat exchange air duct; each heat exchanger assembly comprises at least two heat exchangers, the heat exchangers are sequentially connected end to end, each heat exchanger comprises a heat exchange pipe, and the column number of the heat exchange pipes in the at least two heat exchangers is gradually increased in the circulation direction of heat exchange airflow. The technical problem that in the prior art, an indoor heat exchanger is poor in heat exchange effect is solved, and the purpose of improving the use experience of a user is achieved.

Description

Technical Field

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

[0002] The existing American air conditioner indoor unit AHU (Air Handing Unit) includes a shell, an indoor heat exchanger and an indoor fan. The bottom of the shell is provided with an air inlet, the top of the shell is provided with an air outlet, and a heat exchange air duct from the air inlet to the air outlet is formed in the shell. The indoor fan is installed in the heat exchange air duct and close to the air outlet. The indoor heat exchanger is located in the heat exchange channel for heat exchange with the indoor environment. The indoor heat exchanger includes a plurality of heat exchange tubes extending in the horizontal direction, and the number of columns of heat exchange tubes from top to bottom is equal. The distances between the various parts of the indoor heat exchanger and the fan are different, some are close and some are far. During the operation of the air conditioner, the wind speed at different positions on the surface of the indoor heat exchanger is different. The indoor heat exchanger part close to the indoor fan has a short contact time with the airflow, and the indoor heat exchanger part far away from the indoor fan has a long contact time with the airflow. However, since the indoor heat exchanger is an integrated structure, this leads to the problem of not being able to maximize the use of the indoor heat exchanger, thereby limiting the heat exchange effect of the air conditioner indoor unit and affecting the user experience. Utility Model Content

[0003] In view of the above problems, the present utility model is proposed to provide an air-conditioning indoor unit and an air conditioner that overcome the above problems or at least partially solve the above problems, aiming to solve the technical problem of poor heat exchange effect of indoor heat exchanger in the prior art and to achieve the purpose of improving user experience.

[0004] In one aspect, the utility model provides an air conditioner indoor unit, comprising:

[0005] A shell, wherein the shell defines a heat exchange air duct, an air inlet and an air outlet, wherein the air outlet is connected to the top of the heat exchange air duct, and the air inlet is connected to the bottom of the heat exchange air duct;

[0006] A fan, located at or near the air outlet, for causing the heat exchange airflow to flow from bottom to top;

[0007] At least one heat exchanger assembly, each of which is tiltedly arranged in the heat exchange air duct; each of the heat exchanger assemblies includes at least two heat exchangers, each of which is connected to each other in sequence, and each heat exchanger includes heat exchange tubes, and the number of columns of the heat exchange tubes in the at least two heat exchangers gradually increases in the flow direction of the heat exchange airflow.

[0008] Optionally, the air conditioner indoor unit includes a heat exchanger assembly, wherein the heat exchanger located at the top of the heat exchanger assembly is in contact with or close to one side wall of the shell, and the heat exchanger located at the bottom is in contact with or close to the other side wall of the shell.

[0009] Optionally, the air-conditioning indoor unit includes two heat exchanger assemblies, and the two heat exchanger assemblies are distributed in an inverted V shape.

[0010] Optionally, the lower ends of the heat exchanger assemblies are close to or in contact with the side walls of the corresponding shells.

[0011] Optionally, the thickness of each heat exchanger in the heat exchanger assembly is equal.

[0012] Optionally, the thicknesses of the heat exchangers in the heat exchanger assembly are not all equal, wherein the thickness of the heat exchanger located at the top is greater than the thickness of the heat exchanger located at the bottom.

[0013] Optionally, the thicknesses of the heat exchangers in the heat exchanger assembly are not equal, and the thicknesses of the heat exchangers gradually increase in the flow direction of the heat exchange airflow.

[0014] Optionally, the fan is located in the heat exchange air duct, and a first gap is provided in the vertical direction between the fan and the top of the heat exchanger assembly.

[0015] Optionally, a second gap is provided in the vertical direction between the bottom of the heat exchanger assembly and the bottom of the heat exchange air duct.

[0016] Optionally, each of the heat exchangers has a windward side and an exhaust side;

[0017] In each of the heat exchangers, the heat exchange tube of at least one of the heat exchangers is arranged close to the corresponding windward side; or

[0018] The heat exchange tubes of each heat exchanger are evenly distributed between the windward side and the exhaust side.

[0019] Optionally, the number of rows of the heat exchange tubes of each heat exchanger in the heat exchanger assembly is equal; or

[0020] The number of rows of the heat exchange tubes of each heat exchanger in the heat exchanger assembly is not all equal; or

[0021] The number of rows of the heat exchange tubes of each heat exchanger in the heat exchanger assembly is not equal.

[0022] Optionally, the heat exchanger at the bottom of the heat exchanger assembly has the smallest number of rows of heat exchange tubes.

[0023] On the other hand, the utility model also provides an air conditioner, comprising:

[0024] an air conditioner outdoor unit configured to exchange heat with an outdoor environment;

[0025] In the air-conditioning indoor unit as described in any one of the above items, the air-conditioning indoor unit is connected to the outdoor unit.

[0026] In the air conditioner indoor unit of the utility model, since the heat exchanger assembly includes at least two heat exchangers connected at the ends, and the number of columns of heat exchange tubes of the heat exchanger located at the upper part is greater than the number of columns of heat exchange tubes of the adjacent heat exchanger located at the lower part. Therefore, the heat exchange capacity of the heat exchanger located at the upper part is greater than the heat exchange capacity of the adjacent heat exchanger located at the lower part. When the air conditioner indoor unit is working, when the low-speed airflow passes through the heat exchanger located at the lower part, the heat exchanger can fully exchange heat with the low-speed airflow; when the high-speed airflow passes through the heat exchanger located at the upper part, the heat exchanger can fully exchange heat with the high-speed airflow. Compared with the prior art, the maximum utilization of the heat exchanger assembly can be achieved without increasing the production cost, thereby improving the heat exchange effect of the air conditioner indoor unit, thereby improving the cooling or heating effect of the air conditioner, and achieving the purpose of improving the user experience.

[0027] Furthermore, since the heat exchanger assembly is composed of at least two heat exchangers, different types of heat exchangers can be selected as needed during production and manufacturing, and then the heat exchangers can be assembled together. Therefore, compared with the existing large-scale integrated heat exchangers with evenly arranged heat exchange tube rows, the combined heat exchanger assembly of the utility model has the beneficial effect of being easy to produce and assemble.

[0028] Furthermore, each heat exchanger assembly is tiltedly arranged in the heat exchange air duct, which is more conducive to sufficient heat exchange between the airflow and the heat exchanger, thereby helping to improve the heat exchange effect.

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

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

[0031] Figure 1 is a schematic structural diagram of an air conditioner indoor unit according to one embodiment of the utility model;

[0032] Figure 2 is a schematic structural diagram of an air conditioner indoor unit according to one embodiment of the utility model;

[0033] Figure 3 is a schematic structural diagram of an air conditioner indoor unit according to one embodiment of the utility model;

[0034] Figure 4 It is a schematic structural diagram of an air conditioner according to one embodiment of the utility model. DETAILED DESCRIPTION

[0035] Refer to the following Figures 1 to 4 To describe the air-conditioning indoor unit and the air conditioner of the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0036] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0037] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Figure 1 The schematic structural diagram of the air conditioner indoor unit 100 is shown in FIG. Figure 1 As shown, and refer to Figures 2 to 3 An embodiment of the utility model provides an air-conditioning indoor unit 100 , which includes a housing 110 , a fan 120 and at least one heat exchanger assembly 130 .

[0040] The housing 110 defines a heat exchange air duct 111 , an air inlet 112 , and an air outlet 113 . The air outlet 113 is communicated with the top of the heat exchange air duct 111 , and the air inlet 112 is communicated with the bottom of the heat exchange air duct 111 .

[0041] The fan 120 is located at or near the air outlet 113 , and is used to force the heat exchange air flow to flow from bottom to top along the heat exchange air duct 111 .

[0042] Each heat exchanger assembly 130 is obliquely arranged in the heat exchange air duct 111. Each heat exchanger assembly 130 includes at least two heat exchangers 131, and each heat exchanger 131 is connected to each other in sequence. Each heat exchanger 131 includes a heat exchange tube 1311, and the number of columns of the heat exchange tubes 1311 in the at least two heat exchangers 131 gradually increases in the flow direction of the heat exchange airflow. Specifically, each heat exchanger 131 is provided with at least one column of heat exchange tubes 1311 along its thickness direction.

[0043] During the operation of the air-conditioning indoor unit 100, under the action of the fan 120, the air enters the heat exchange duct 111 from the air inlet 112 and flows from bottom to top along the heat exchange duct 111. When the air passes through the heat exchanger 131, it exchanges heat with the heat exchanger 131 to form a heat exchange airflow, and then the heat exchange airflow is discharged into the room through the air outlet 113.

[0044] In this embodiment, since the heat exchanger assembly 130 includes at least two heat exchangers 131 connected at the end, and the number of columns of the heat exchange tubes 1311 of the upper heat exchanger 131 is greater than the number of columns of the heat exchange tubes 1311 of the adjacent lower heat exchanger 131. Therefore, the heat exchange capacity of the upper heat exchanger 131 is greater than the heat exchange capacity of the adjacent lower heat exchanger 131. When the air conditioner indoor unit 100 is working, when the low-speed airflow passes through the lower heat exchanger 131, the heat exchanger 131 can fully exchange heat with the low-speed airflow; when the high-speed airflow passes through the upper heat exchanger 131, the heat exchanger 131 can fully exchange heat with the high-speed airflow. Compared with the prior art, the maximum utilization of the heat exchanger assembly 130 can be achieved without increasing the production cost, thereby improving the heat exchange effect of the air conditioner indoor unit 100, thereby improving the cooling or heating effect of the air conditioner 10, and achieving the purpose of improving the user experience.

[0045] Furthermore, since the heat exchanger assembly 130 is composed of at least two heat exchangers 131, different types of heat exchangers 131 can be selected as needed during production and manufacturing, and then the heat exchangers 131 can be assembled together. Therefore, compared with the existing large-scale integrated heat exchanger 131 with evenly arranged rows of heat exchange tubes 1311, the combined heat exchanger assembly 130 of the utility model has the beneficial effect of being easy to produce and assemble.

[0046] Furthermore, each heat exchanger assembly 130 is tiltedly disposed in the heat exchange air duct 111 , which is more conducive to sufficient heat exchange between the airflow and the heat exchanger 131 , thereby facilitating improved heat exchange effects.

[0047] In some optional embodiments of the present invention, the heat exchanger 131 at the bottom includes at least one row of heat exchange tubes 1311. For example, the heat exchanger 131 at the bottom includes one row or at least two rows of heat exchange tubes 1311.

[0048] like Figures 1 to 3 As shown, in some optional embodiments of the present invention, each heat exchanger assembly 130 includes three heat exchangers 131, and the three heat exchangers 131 are respectively a first heat exchanger 131, a second heat exchanger 131 and a third heat exchanger 131 from top to bottom. The bottom of the first heat exchanger 131 is connected to the top of the second heat exchanger 131, and the bottom of the second heat exchanger 131 is connected to the top of the third heat exchanger 131.

[0049] The number of rows of heat exchange tubes 1311 in the first heat exchanger 131 is a first preset value, the number of rows of heat exchange tubes 1311 in the second heat exchanger 131 is a second preset value, and the number of rows of heat exchange tubes 1311 in the third heat exchanger 131 is a third preset value, wherein the first preset value is greater than the second preset value, and the second preset value is greater than the third preset value.

[0050] When the air conditioning indoor unit 100 is working, the speed of the air flow through the first heat exchanger is recorded as the first flow rate, the speed of the air flow through the second heat exchanger is recorded as the second flow rate, and the speed of the air flow through the second heat exchanger is recorded as the third flow rate. The first flow rate is greater than the second flow rate, and the second flow rate is greater than the third flow rate.

[0051] Since the number of columns of the corresponding heat exchange tubes is designed according to the air flow velocity flowing through the heat exchanger in this embodiment, each heat exchanger 131 can fully exchange heat with the air flow of the corresponding velocity, and can maximize the utilization of the heat exchanger assembly 130 without increasing the production cost, thereby improving the heat exchange effect of the air conditioner indoor unit 100, and further improving the cooling or heating effect of the air conditioner 10, and achieving the purpose of improving the user experience.

[0052] In some alternative embodiments, each heat exchanger assembly 130 includes two heat exchangers 131 , and the two heat exchangers 131 are respectively a first heat exchanger 131 and a second heat exchanger 131 from top to bottom. The bottom of the first heat exchanger 131 is connected to the top of the second heat exchanger 131 .

[0053] In some other alternative embodiments of the present invention, each heat exchanger assembly 130 may also include four heat exchangers 131 .

[0054] In some other alternative embodiments of the present invention, each heat exchanger assembly 130 may further include more than four heat exchangers 131 .

[0055] like Figures 1 to 3 As shown, in some optional embodiments of the present invention, the air outlet 113 is disposed on the top wall of the housing 110 .

[0056] In some other optional embodiments of the present invention, the air outlet 113 is disposed at an upper portion of a side wall of the housing 110 .

[0057] like Figures 1 to 3 As shown, in some optional embodiments of the present invention, the air outlet 113 is disposed on the bottom wall of the housing 110 .

[0058] In some other optional embodiments of the present invention, the air outlet 113 is disposed at the lower portion of the side wall of the housing 110 .

[0059] like Figure 1 and Figure 3 As shown, in some optional embodiments of the present invention, each heat exchanger 131 has a windward side 1312 and an exhaust side 1313. In each heat exchanger 131, the heat exchange tube 1311 of at least one heat exchanger 131 is arranged close to the corresponding windward side 1312.

[0060] In this embodiment, compared with the method of evenly arranging the heat exchange tubes 1311 between the windward side 1312 and the exhaust side 1313 , arranging the heat exchange tubes 1311 close to the corresponding windward side 1312 can further improve the heat exchange capacity of the heat exchanger 131 .

[0061] like Figure 1 and Figure 3 As shown, in some optional embodiments of the present invention, among the multiple heat exchangers 131 , the heat exchange tubes 1311 of some of the heat exchangers 131 are arranged close to the corresponding windward side 1312 .

[0062] For example, when the heat exchanger assembly 130 has three heat exchangers 131 , the heat exchange tubes 1311 of the two upper heat exchangers 131 are arranged close to the corresponding windward side 1312 , and the heat exchange tubes 1311 of the heat exchanger 131 at the bottom are evenly distributed between the windward side 1312 and the exhaust side 1313 .

[0063] In some optional embodiments of the present invention, in the plurality of heat exchangers 131 , the heat exchange tubes 1311 of each heat exchanger 131 are arranged close to the corresponding windward side 1312 .

[0064] For example, when the heat exchanger assembly 130 has three heat exchangers 131, the heat exchange tubes 1311 of the three heat exchangers 131 are all arranged close to the corresponding windward side 1312. Compared with the method in which only some of the heat exchangers 131 are arranged close to the corresponding windward side 1312, this embodiment can further improve the heat exchange capacity of the heat exchanger assembly 130.

[0065] In some embodiments of the present invention, the heat exchange tubes 1311 of each heat exchanger 131 are evenly distributed between the windward side 1312 and the exhaust side 1313. The distance between the windward side 1312 and the exhaust side 1313 of the heat exchanger 131 is the thickness of the heat exchanger 131.

[0066] like Figure 2 and Figure 3 As shown, in some optional embodiments of the present invention, the air conditioner indoor unit 100 includes a heat exchanger assembly 130, in which the heat exchanger 131 located at the top is in contact with or close to one side wall of the shell 110, and the heat exchanger 131 located at the bottom is in contact with or close to the other side wall of the shell 110.

[0067] In the present embodiment, since the air-conditioning indoor unit 100 is provided with only one heat exchanger assembly 130 , the air-conditioning indoor unit 100 has the beneficial effect of high production and assembly efficiency.

[0068] like Figure 1As shown, in some optional embodiments of the present invention, the air-conditioning indoor unit 100 includes two heat exchanger assemblies 130, and the two heat exchanger assemblies 130 are distributed in an inverted V shape.

[0069] Specifically, the two heat exchanger assemblies 130 are respectively a first heat exchanger assembly 130 and a second heat exchanger assembly 130. The tops of the first heat exchanger assembly 130 and the second heat exchanger assembly 130 are in contact with each other, and there is a small gap between the bottoms of the first heat exchanger assembly 130 and the second heat exchanger assembly 130, so that a certain angle is formed between the first heat exchanger assembly 130 and the second heat exchanger assembly 130. In other words, a certain angle is formed between the windward sides 1312 of the first heat exchanger 131 and the second heat exchanger 131.

[0070] In this embodiment, by arranging two heat exchanger assemblies 130 in the heat exchange channel, the heat exchange effect of the air conditioner indoor unit 100 can be further improved, so that the air conditioner 10 can have a better heat exchange effect. Furthermore, the lower ends of the heat exchanger assemblies 130 are close to or in contact with the side walls of the corresponding shell 110, which is more conducive to improving the space utilization of the heat exchange channel and can further improve the heat exchange efficiency.

[0071] In some optional embodiments of the present invention, the air-conditioning indoor unit 100 includes two heat exchanger assemblies 130 , and the two heat exchanger assemblies 130 are distributed in a V shape.

[0072] In some optional embodiments of the present invention, the air-conditioning indoor unit 100 includes two heat exchanger assemblies 130 , and the two heat exchanger assemblies 130 are distributed in parallel.

[0073] In some optional embodiments of the present invention, the air-conditioning indoor unit 100 includes three heat exchanger assemblies 130 .

[0074] In some optional embodiments of the present invention, the air-conditioning indoor unit 100 includes more than three heat exchanger assemblies 130 .

[0075] like Figure 1 As shown, in some optional embodiments of the present invention, the thickness of each heat exchanger 131 in the heat exchanger assembly 130 is equal.

[0076] Specifically, the thickness of the heat exchanger refers to the distance between the windward side 1312 and the exhaust side 1313 of the heat exchanger 131 .

[0077] In this embodiment, the above arrangement can provide a larger contact area between adjacent heat exchangers 131 , thereby making the connection between the heat exchangers 131 more secure and facilitating the assembly of the heat exchanger assembly 130 .

[0078] like Figure 2 and Figure 3 As shown, in some optional embodiments of the present invention, the thicknesses of the heat exchangers 131 in the heat exchanger assembly 130 are not all equal, wherein the thickness of the heat exchanger 131 at the top is greater than the thickness of the heat exchanger 131 at the bottom. When the high-speed airflow passes through the top heat exchanger 131, the contact area with the top heat exchanger 131 can be increased, thereby improving the heat exchange area of ​​the top heat exchanger 131.

[0079] In this embodiment, through the above configuration, the maximum heat exchange utilization rate of each heat exchanger 131 can be further improved, thereby further improving the overall heat exchange efficiency of the heat exchanger assembly 130.

[0080] In some optional embodiments of the present invention, the thickness of each heat exchanger 131 in the heat exchanger assembly 130 is not equal, and the thickness of each heat exchanger 131 gradually increases in the flow direction of the heat exchange airflow. In other words, the heat exchange area of ​​each heat exchanger 131 gradually increases in the flow direction of the heat exchange airflow.

[0081] In this embodiment, through the above configuration, the maximum heat exchange utilization rate of each heat exchanger 131 can be further improved, thereby further improving the overall heat exchange efficiency of the heat exchanger assembly 130.

[0082] like Figures 1 to 3 As shown, in some optional embodiments of the present invention, the fan 120 is located in the heat exchange air duct 111 , and a first gap is provided between the fan 120 and the top of the heat exchanger assembly 130 in the vertical direction.

[0083] In this embodiment, by providing a first gap between the fan 120 and the heat exchanger assembly 130 , it is more convenient to assemble the fan 120 or the heat exchanger assembly 130 in the heat exchange air duct 111 .

[0084] In some optional embodiments of the present invention, the fan 120 is located outside the heat exchange air duct 111 .

[0085] In this embodiment, the above arrangement not only facilitates the installation and maintenance of the fan 120, but also increases the installation space of the heat exchanger assembly 130 in the heat exchange channel, thereby facilitating further improving the heat exchange efficiency.

[0086] In some optional embodiments of the present invention, a second gap is provided between the bottom of the heat exchanger assembly 130 and the bottom of the heat exchange air duct 111 in the vertical direction.

[0087] In this embodiment, the above arrangement facilitates installation and maintenance of the heat exchanger assembly 130 .

[0088] In some other optional embodiments of the present invention, the bottom of the heat exchanger assembly 130 is flush with the bottom of the heat exchange air duct 111 .

[0089] In this embodiment, the above arrangement makes it easier to increase the available installation space of the heat exchanger assembly 130 in the heat exchange channel.

[0090] In some optional embodiments of the present invention, each heat exchanger 131 is provided with multiple rows of heat exchange tubes 1311 along its height direction, and the intervals between adjacent rows of heat exchange tubes 1311 are equal.

[0091] In some optional embodiments of the present invention, the number of rows of heat exchange tubes 1311 of each heat exchanger 131 in the heat exchanger assembly 130 is equal. In other words, the heights of each heat exchanger 131 in the heat exchanger assembly 130 are equal.

[0092] In some optional embodiments of the present invention, the number of rows of heat exchange tubes 1311 of each heat exchanger 131 in the heat exchanger assembly 130 is not all equal. In other words, the heights of each heat exchanger 131 in the heat exchanger assembly 130 are not all equal.

[0093] like Figure 1 As shown, in some optional embodiments of the present invention, the number of rows of heat exchange tubes 1311 of each heat exchanger 131 in the heat exchanger assembly 130 is not equal. In other words, the heights of each heat exchanger 131 in the heat exchanger assembly 130 are not equal.

[0094] In some optional embodiments of the present invention, the heat exchanger 131 at the bottom of the heat exchanger assembly 130 has the smallest number of rows of heat exchange tubes 1311 .

[0095] In some optional embodiments of the present invention, the height of each heat exchanger 131 gradually decreases in the flow direction of the heat exchange airflow.

[0096] In some optional embodiments of the present invention, when the indoor unit of the air conditioner includes a plurality of heat exchangers, the heat exchanger components are arranged in series during the refrigerant circulation process.

[0097] In some optional embodiments of the present invention, when the indoor unit of the air conditioner includes a plurality of heat exchangers, during the refrigerant circulation process, the heat exchanger components are arranged in parallel.

[0098] In some optional embodiments of the present invention, the cross section of the shell is square.

[0099] In some optional embodiments of the present invention, the cross section of the shell is rectangular.

[0100] Figure 4 is a schematic structural diagram of the air conditioner 10, such as Figure 4As shown, the embodiment of the utility model further provides an air conditioner 10, comprising an air conditioner outdoor unit 200 and an air conditioner indoor unit 100. The air conditioner outdoor unit 200 is configured to perform heat exchange with the outdoor environment. The air conditioner indoor unit 100 is the air conditioner indoor unit 100 as described in any one of the above embodiments, and the air conditioner indoor unit 100 is connected to the outdoor unit.

[0101] In this embodiment, compared with the prior art, the heat exchanger assembly 130 of the air-conditioning indoor unit can be maximized without increasing the production cost, thereby improving the heat exchange effect of the air-conditioning indoor unit 100, and further improving the cooling or heating effect of the air conditioner 10, and achieving the purpose of improving the user experience.

[0102] In some optional embodiments of the present invention, the air conditioner outdoor unit includes an outdoor heat exchanger.

[0103] Furthermore, when the air conditioner 10 operates in a cooling mode, the heat exchanger assembly 130 in the air conditioner indoor unit 100 is an evaporator assembly, and the outdoor heat exchanger is a condenser.

[0104] When the air conditioner 10 operates in cooling mode, the working principle of the heat exchanger assembly 130 is as follows: liquid low-temperature refrigerant passes through the heat exchanger assembly 130, exchanges heat with the outside air, vaporizes and absorbs heat, and achieves a cooling effect.

[0105] Furthermore, when the air conditioner operates in a dehumidification mode, the heat exchanger assembly 130 in the air conditioner indoor unit 100 is an evaporator assembly, and the outdoor heat exchanger is a condenser.

[0106] When the air conditioner 10 operates in the dehumidification mode, the working principle of the heat exchanger assembly 130 is as follows: the liquid low-temperature refrigerant passes through the heat exchanger assembly 130, exchanges heat with the outside air, vaporizes and absorbs heat, and achieves a cooling effect.

[0107] Furthermore, when the air conditioner operates in a heating mode, the heat exchanger assembly 130 in the air conditioner indoor unit 100 is a condenser assembly, and the outdoor heat exchanger is an evaporator.

[0108] When the air conditioner 10 operates in heating mode, the working principle of the heat exchanger assembly 130 is as follows: the high-temperature and high-pressure refrigerant passes through the heat exchanger assembly 130 to exchange heat with the outside air, so that the refrigerant changes from gas to liquid and dissipates heat to the surrounding environment to achieve a heating effect.

[0109] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner indoor unit, characterized in that: include: A shell, wherein the shell defines a heat exchange air duct, an air inlet and an air outlet, wherein the air outlet is connected to the top of the heat exchange air duct, and the air inlet is connected to the bottom of the heat exchange air duct; A fan, located at or near the air outlet, for causing the heat exchange airflow to flow from bottom to top; At least one heat exchanger assembly, each of which is tiltedly arranged in the heat exchange air duct; each of the heat exchanger assemblies includes at least two heat exchangers, each of which is connected to each other in sequence, and each heat exchanger includes heat exchange tubes, and the number of columns of the heat exchange tubes in the at least two heat exchangers gradually increases in the flow direction of the heat exchange airflow.

2. The air conditioner indoor unit according to claim 1, characterized in that: The air conditioner indoor unit comprises a heat exchanger assembly, wherein the heat exchanger at the top of the heat exchanger assembly contacts or is close to one side wall of the shell, and the heat exchanger at the bottom contacts or is close to the other side wall of the shell.

3. The air conditioner indoor unit according to claim 1, characterized in that: The air conditioner indoor unit comprises two heat exchanger assemblies, and the two heat exchanger assemblies are distributed in an inverted V shape.

4. The air conditioner indoor unit according to claim 3, characterized in that: The lower ends of the heat exchanger assemblies are close to or in contact with the side walls of the corresponding shells.

5. The air conditioner indoor unit according to claim 1, characterized in that: The thickness of each heat exchanger in the heat exchanger assembly is equal.

6. The air conditioner indoor unit according to claim 1, characterized in that: The thicknesses of the heat exchangers in the heat exchanger assembly are not all equal, wherein the thickness of the heat exchanger located at the top is greater than the thickness of the heat exchanger located at the bottom.

7. The air conditioner indoor unit according to claim 1, characterized in that: The thickness of each heat exchanger in the heat exchanger assembly is not equal, and the thickness of each heat exchanger gradually increases in the flow direction of the heat exchange airflow.

8. The air conditioner indoor unit according to claim 1, characterized in that: The fan is located in the heat exchange air duct, and a first gap is defined between the fan and the top of the heat exchanger assembly in the vertical direction.

9. The air conditioner indoor unit according to claim 1, characterized in that: A second gap is formed between the bottom of the heat exchanger assembly and the bottom of the heat exchange air duct in the vertical direction.

10. The air conditioner indoor unit according to claim 1, characterized in that: Each of the heat exchangers has a windward side and an exhaust side; In each of the heat exchangers, the heat exchange tube of at least one of the heat exchangers is arranged close to the corresponding windward side; or The heat exchange tubes of each heat exchanger are evenly distributed between the windward side and the exhaust side.

11. The air conditioner indoor unit according to claim 1, characterized in that: The number of rows of the heat exchange tubes of each heat exchanger in the heat exchanger assembly is equal; or The number of rows of the heat exchange tubes of each heat exchanger in the heat exchanger assembly is not all equal; or The number of rows of the heat exchange tubes of each heat exchanger in the heat exchanger assembly is not equal.

12. The air conditioner indoor unit according to claim 1, characterized in that: The heat exchanger at the bottom of the heat exchanger assembly has the smallest number of rows of heat exchange tubes.

13. An air conditioner, characterized in that: include: an air conditioner outdoor unit configured to exchange heat with an outdoor environment; The air conditioner indoor unit according to any one of claims 1 to 12, wherein the air conditioner indoor unit is connected to the outdoor unit.

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