Indoor unit of air conditioner

Abstract

The invention relates to the technical field of air conditioning, and discloses an air conditioner indoor unit which comprises a shell, an air duct assembly, a partition assembly, a first cross-flow wind wheel and a second cross-flow wind wheel. The air duct assembly is arranged in the shell and defines an airflow channel communicating with the air inlet. The separation assembly is arranged on the air duct assembly, and the airflow channel is divided into a heat exchange air duct and an air mixing air duct by the separation assembly; the first cross-flow wind wheel is arranged in the heat exchange air duct; the second cross-flow wind wheel is arranged in the air mixing duct, and the second cross-flow wind wheel and the first cross-flow wind wheel coaxially rotate and are in driving connection. By means of the air conditioner indoor unit, the air outlet amount of the air mixing duct can be increased, and therefore the air mixing effect of the air conditioner indoor unit is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to an air-conditioning indoor unit. Background Art

[0002] When the air conditioner is running, the temperature difference between the air blown out by the air conditioner and the indoor temperature is large, which may cause discomfort to the user when blowing directly on the user.

[0003] In order to make the airflow of the air conditioner feel softer, a wall-mounted air conditioner indoor unit is disclosed in the related art, which includes a shell, an air inlet for taking in air from the indoor environment and an air outlet for supplying air to the indoor environment; an evaporator, arranged in the shell, for heat exchange with the air flowing in from the air inlet to form heat exchange wind; a main air flow channel, arranged in the shell, for guiding the heat exchange wind to the air outlet; a fan, arranged in the main air flow channel, configured to cause air to flow from the air inlet to the air outlet; and at least one mixed air duct, formed in the shell, configured to allow the air in the indoor environment to flow to the main air flow channel through the mixed air duct to mix with the heat exchange air; and the outlet of the mixed air duct is located on the lateral side of the air outlet. The wall-mounted air conditioner indoor unit can improve the air supply comfort of the wall-mounted air conditioner indoor unit, improve the user's wind feeling experience, and increase the air supply volume and cooling / heating speed.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The air outlet of the main air flow channel draws the air from the mixed air duct, and the mixed air volume is low, and the air mixing effect needs to be further improved.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiment of the present disclosure provides an air-conditioning indoor unit to improve the air mixing effect of the air-conditioning indoor unit.

[0009] In some embodiments, the air conditioner indoor unit includes a shell, a duct assembly, a partition assembly, a first cross-flow fan wheel and a second cross-flow fan wheel, wherein the shell is provided with an air inlet; the duct assembly is arranged in the shell, and the duct assembly defines an air flow channel connected to the air inlet; the partition assembly is arranged in the duct assembly, and the partition assembly divides the air flow channel into a heat exchange air duct and a mixing air duct; the first cross-flow fan wheel is arranged in the heat exchange air duct; the second cross-flow fan wheel is arranged in the mixing air duct, and the second cross-flow fan wheel rotates coaxially with the first cross-flow fan wheel and is drive-connected.

[0010] In some embodiments, the partition assembly includes a first partition plate, the first partition plate is disposed in the air flow channel, the first partition plate is provided with a connecting hole, and the first cross-flow blower wheel and the second cross-flow blower wheel are drivingly connected through the connecting hole.

[0011] In some embodiments, one of the first crossflow blower and the second crossflow blower is provided with a plug-in shaft extending axially, and the other is configured with a plug-in groove axially, and the plug-in shaft passes through the connecting hole and extends into the plug-in groove to drive and connect the first crossflow blower with the second crossflow blower.

[0012] In some embodiments, a first groove is formed on a side of the first partition plate facing the first cross-flow wind wheel, and one end of the first cross-flow wind wheel extends into the first groove.

[0013] In some embodiments, a second groove is formed on a side of the first partition plate facing the second cross-flow wind wheel, and one end of the second cross-flow wind wheel extends into the second groove.

[0014] In some embodiments, the air duct assembly includes a chassis, the chassis is provided with an air duct outlet, and the air duct outlet is connected to the air inlet through an air flow channel; the partition assembly also includes a second partition, the second partition is arranged at the air duct outlet of the chassis, and the first partition is spliced ​​with the second partition.

[0015] In some embodiments, the second partition is configured with an insulation cavity, and the insulation cavity is filled with a heat preservation material.

[0016] In some embodiments, the second partition is provided with a thermal insulation material.

[0017] In some embodiments, the second partition is an integral structure with the chassis.

[0018] In some embodiments, the air-conditioning indoor unit also includes a heat exchanger, which is arranged in the heat exchange air duct; the partition assembly also includes a third partition, which is arranged in the air duct assembly and spliced ​​with the first partition, and a side surface of the third partition is configured with a fixing groove, and a plurality of refrigerant pipes at one end of the heat exchanger are embedded in the fixing groove.

[0019] In some embodiments, the bottom plate is configured with a water receiving groove, and the first portion of the third partition is inserted into the water receiving groove.

[0020] In some embodiments, the air conditioner indoor unit includes two partition components, which are respectively arranged at both ends of the duct component, a heat exchange duct is defined between the two partition components, and two mixing ducts are defined by the two partition components and the two ends of the duct component.

[0021] The air conditioner indoor unit provided by the embodiment of the present disclosure can achieve the following technical effects:

[0022] The mixed air duct is separated by a partition component, and the normal temperature air blown out of the mixed air duct is mixed with the air blown out of the heat exchange duct and then blown to the indoor environment, which can reduce the user discomfort caused by the large difference between the air outlet temperature of the air conditioner and the indoor temperature; a second cross flow fan wheel is arranged in the mixed air duct, which can increase the air outlet volume of the mixed air duct, thereby improving the air mixing effect of the air conditioner indoor unit; the second cross flow fan wheel is drivingly connected to the first cross flow fan wheel, and the second cross flow fan wheel and the first cross flow fan wheel can be driven to rotate by only one fan motor, which has low cost and is conducive to the miniaturization of the air conditioner indoor unit; the first cross flow fan wheel and the second cross flow fan wheel rotate synchronously and coaxially, and the air outlet volume of the mixed air duct and the air outlet volume of the heat exchange duct can be maintained at a certain ratio, that is, the adaptive adjustment of the air outlet volume of the mixed air duct compared with the air outlet volume of the heat exchange duct is realized.

[0023] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0025] Figure 1 is a structural schematic diagram of an air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0026] Figure 2 is a structural schematic diagram of another air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0027] Figure 3 is a schematic structural diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure with part of the housing removed;

[0028] Figure 4 is a schematic structural diagram of another air-conditioning indoor unit provided by an embodiment of the present disclosure with part of the housing removed;

[0029] Figure 5It is a schematic diagram of the coordination of an air duct assembly and a partition assembly of an indoor unit of an air conditioner provided by an embodiment of the present disclosure;

[0030] Figure 6 It is a schematic diagram of the cooperation between a first cross-flow fan wheel and a second cross-flow fan wheel of an air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0031] Figure 7 is a structural schematic diagram of a first partition of an air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0032] Figure 8 It is a structural schematic diagram of a third partition of an air-conditioning indoor unit provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 100: housing; 101: air inlet; 200: air duct assembly; 210: chassis; 220: water receiving trough; 300: partition assembly; 310: first partition; 311: first groove; 312: connecting hole; 320: second partition; 330: third partition; 331: fixing groove; 400: heat exchanger; 510: heat exchange air duct; 520: first crossflow impeller; 530: plug-in shaft; 610: air mixing duct; 620: second crossflow impeller; 710: first swing blade; 720: second swing blade; 730: fan motor. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0041] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0043] When the air conditioner is running, the temperature difference between the air blown out by the air conditioner and the indoor temperature is large, which may cause discomfort to the user when blowing directly to the user. In order to make the air outlet of the air conditioner feel softer, a wall-mounted air conditioner indoor unit is disclosed in the related art, which includes a shell, an air inlet for taking in air from the indoor environment and an air outlet for supplying air to the indoor environment; an evaporator is arranged in the shell, and is used to perform heat exchange with the air flowing in from the air inlet to form heat exchange wind; a main air flow channel is arranged in the shell, and is used to guide the heat exchange wind to the air outlet; a fan is arranged in the main air flow channel, and is configured to cause air to flow from the air inlet to the air outlet; and at least one mixed air duct is formed in the shell, and is configured to allow the air in the indoor environment to flow to the main air flow channel through the mixed air duct to mix with the heat exchange air; and the outlet of the mixed air duct is located on the lateral side of the air outlet. The wall-mounted air conditioner indoor unit can improve the air supply comfort of the wall-mounted air conditioner indoor unit, improve the user's wind feeling experience, and increase the air supply volume and cooling / heating speed. The problem with the related technology is that the air outlet through the main air flow channel sucks the air into the mixed air duct, the mixed air volume is low, and the air mixing effect needs to be further improved.

[0044] In order to improve the air mixing effect of the indoor unit of the air conditioner, Figure 1-8 As shown, the embodiment of the present disclosure provides an air-conditioning indoor unit, including a shell 100, an air duct assembly 200, a partition assembly 300, a first cross-flow fan wheel 520 and a second cross-flow fan wheel 620, wherein the shell 100 is provided with an air inlet 101; the air duct assembly 200 is arranged in the shell 100, and the air duct assembly 200 defines an air flow channel connected to the air inlet 101; the partition assembly 300 is arranged in the air duct assembly 200, and the partition assembly 300 divides the air flow channel into a heat exchange air duct 510 and an air mixing air duct 610; the first cross-flow fan wheel 520 is arranged in the heat exchange air duct 510; the second cross-flow fan wheel 620 is arranged in the air mixing air duct 610, and the second cross-flow fan wheel 620 rotates coaxially with the first cross-flow fan wheel 520 and is drive-connected.

[0045] In the disclosed embodiment, the indoor unit of the air conditioner can be a wall-mounted unit or a cabinet unit. The following description is made by taking the indoor unit of the air conditioner as a wall-mounted unit as an example.

[0046] The air conditioner indoor unit comprises a housing 100 , an air inlet 101 is provided at the top of the housing 100 along the width direction of the air conditioner indoor unit, and an air outlet is provided at the bottom of the housing 100 along the length direction of the air conditioner indoor unit.

[0047] The air duct assembly 200 is disposed in the housing 100 to define an air flow channel in the housing 100. Exemplarily, the top of the air duct assembly 200 is open to connect with the air inlet 101 of the housing 100, and the bottom of the air duct assembly is provided with an air duct outlet to connect with the air outlet of the housing 100.

[0048] The partition assembly 300 is disposed in the air flow channel to divide the air flow channel into an air mixing channel 610 and a heat exchange channel 510. Specifically, the air flow channel extends horizontally, and the partition assembly 300 is disposed vertically to divide the air flow channel. The air conditioner indoor unit also includes a heat exchanger 400, which is located in the heat exchange channel 510.

[0049] A part of the air inlet 101 provided in the housing 100 is used as the air inlet of the air mixing duct, and another part is used as the air inlet of the heat exchange duct 510; or, the air entering the indoor unit of the air conditioner from the air inlet 101 is split at the partition component 300, with one part flowing to the air mixing duct 610 and the other part flowing to the heat exchange duct 510. A part of the air outlet provided in the housing 100 is used as the air outlet of the air mixing duct 610, and another part is used as the air outlet of the heat exchange duct 510.

[0050] The air conditioner indoor unit also includes a first cross flow fan wheel 520, which is transversely arranged in the heat exchange air duct 510 to drive the air from the air inlet 101 to the air outlet of the heat exchange air duct 510 through the heat exchanger 400. When the air flows through the heat exchanger 400, the heat is exchanged with the heat exchanger 400, and the temperature is increased or decreased. The air with increased or decreased temperature is blown from the air outlet of the heat exchange air duct 510 to the indoor environment, so that the air conditioner can achieve heating and cooling functions.

[0051] The air conditioner indoor unit also includes a second cross flow fan wheel 620, which is horizontally arranged in the air mixing duct 610 to drive the air to flow from the air inlet 101 to the air outlet of the air mixing duct 610. The air flowing through the air mixing duct 610 does not exchange heat with the indoor heat exchanger 400, and the temperature does not change. The air blown out through the air mixing duct 610 and the air blown out through the heat exchange duct 510 are mixed after being blown out by the air conditioner indoor unit, and are blown to the user together.

[0052] The second cross flow impeller 620 rotates coaxially with and is drivingly connected to the first cross flow impeller 520. The air conditioner indoor unit further includes a fan motor 730, the output shaft of which is drivingly connected to one of the second cross flow impeller 620 and the first cross flow impeller 520, thereby driving the first cross flow impeller 520 and the second cross flow impeller 620 to rotate synchronously.

[0053] The indoor air conditioner provided in the embodiment of the present disclosure is used to separate the mixed air duct 610 through the partition component 300. The normal temperature air blown out through the mixed air duct 610 is mixed with the air blown out through the heat exchange air duct 510 and then blown to the indoor environment, which can reduce the user discomfort caused by the large difference between the air outlet temperature of the indoor air conditioner and the indoor temperature. The second cross flow fan wheel 620 is arranged in the mixed air duct 610, which can increase the air outlet volume of the mixed air duct 610, thereby improving the air mixing effect of the indoor air conditioner. The second cross flow fan wheel 620 and the The first cross-flow fan wheel 520 is driven and connected, and the second cross-flow fan wheel 620 and the first cross-flow fan wheel 520 can be driven to rotate by only one fan motor 730, which has low cost and is conducive to the miniaturization of the air-conditioning indoor unit; the first cross-flow fan wheel 520 and the second cross-flow fan wheel 620 rotate synchronously and coaxially, and the air outlet of the mixing air duct 610 and the air outlet of the heat exchange air duct 510 can be maintained at a certain ratio, that is, the adaptive adjustment of the air outlet of the mixing air duct 610 compared with the air outlet of the heat exchange air duct 510 is achieved.

[0054] Optionally, the partition assembly 300 includes a first partition plate 310 , which is disposed in the air flow channel. The first partition plate 310 is provided with a connecting hole 312 , and the first cross-flow impeller 520 and the second cross-flow impeller 620 are drivingly connected via the connecting hole 312 .

[0055] The first partition plate 310 is arranged in the air flow channel to isolate the air flow between the heat exchange air duct 510 and the air mixing air duct 610. In order to realize the driving connection between the first cross flow wind wheel 520 and the second cross flow wind wheel 620, the first partition plate 310 is provided with a connecting hole 312. The first cross flow wind wheel 520 and the second cross flow wind wheel 620 are drivingly connected through the connecting hole 312. With such a setting form, the partition assembly 300 is conducive to the driving connection between the first cross flow wind wheel 520 and the second cross flow wind wheel 620 while separating the heat exchange air duct 510 and the air mixing air duct 610.

[0056] Optionally, one of the first cross-flow blower 520 and the second cross-flow blower 620 is provided with an axially extending plug-in shaft 530, and the other is configured with an axially extending plug-in groove, and the plug-in shaft 530 passes through the connecting hole 312 and extends into the plug-in groove to drive the first cross-flow blower 520 and the second cross-flow blower 620 to be connected.

[0057] As an optional implementation form, a plug-in shaft 530 is extended at one end of the first crossflow wind wheel 520, and a plug-in groove is configured at one end of the second crossflow wind wheel 620. As another optional implementation form, a plug-in groove is configured at one end of the first crossflow wind wheel 520, and a plug-in shaft 530 is extended at one end of the second crossflow wind wheel 620. The plug-in shaft 530 is inserted into the plug-in groove. The plug-in shaft 530 is inserted into the plug-in groove, which, on the one hand, realizes the mutual fixation between the first crossflow wind wheel 520 and the second crossflow wind wheel 620, and on the other hand, realizes the driving connection between the first crossflow wind wheel 520 and the second crossflow wind wheel 620.

[0058] Optionally, a first portion of the plug-in shaft 530 extends into the plug-in groove, and a second portion is located in the connecting hole 312 of the first partition plate 310 .

[0059] With such a configuration, the connecting hole 312 of the first partition plate 310 only needs to avoid the plug-in shaft 530 and the opening is relatively small, which can reduce the phenomenon that the air in the heat exchange air duct 510 enters the air mixing air duct 610 through the connecting hole 312.

[0060] Optionally, the cross-section of the plug-in shaft 530 is polygonal, and the cross-section shape of the plug-in groove matches the cross-section shape of the plug-in shaft 530 .

[0061] Such a configuration is beneficial to the synchronous rotation of the first cross-flow wind wheel 520 and the second cross-flow wind wheel 620 .

[0062] Optionally, a first groove 311 is formed on a side of the first partition plate 310 facing the first cross-flow wind wheel 520 , and one end of the first cross-flow wind wheel 520 extends into the first groove 311 .

[0063] The bottom of the first groove 311 serves as the part of the first partition 310 that realizes the separation function, and the side wall of the first groove 311 is enclosed in a cylindrical shape. This not only improves the structural strength of the first partition 310, but also the side wall of the first groove 311 extending laterally is conducive to the installation and fixation of the first partition 310. The end of the first crossflow wind wheel 520 is used to connect multiple crossflow blades, and the end extending into the first groove 311 will not cause much impact on the air output of the first crossflow wind wheel 520. The first groove 311 of the first partition 310 can play an auxiliary positioning role when plugging the first crossflow wind wheel 520 and the second crossflow wind wheel 620.

[0064] Optionally, a second groove is formed on a side of the first partition plate 310 facing the second cross-flow wind wheel 620 , and one end of the second cross-flow wind wheel 620 extends into the second groove.

[0065] The bottom of the second groove serves as the part of the first partition 310 that realizes the separation function, and the side wall of the second groove is enclosed in a cylindrical shape. This not only improves the structural strength of the first partition 310, but also the side wall of the second groove extending laterally is conducive to the installation and fixation of the first partition 310. The end of the second crossflow wind wheel 620 is used to connect multiple crossflow blades, and the end extending into the second groove will not cause much impact on the air output of the second crossflow wind wheel 620. The second groove of the first partition 310 can play an auxiliary positioning role when plugging the first crossflow wind wheel 520 and the second crossflow wind wheel 620.

[0066] Optionally, the air duct assembly 200 includes a chassis 210, which is provided with an air duct outlet, and the air duct outlet is connected to the air inlet 101 through an air flow channel; the partition assembly 300 also includes a second partition plate 320, which is arranged at the air duct outlet of the chassis 210, and the first partition plate 310 and the second partition plate 320 are spliced ​​together.

[0067] The bottom plate 210 of the air duct assembly 200 is provided with an air duct outlet, which corresponds to the air outlet provided in the housing 100. The air duct assembly 200 further defines a volute tongue to cooperate with the first crossflow impeller 520 and the second crossflow impeller 620 to realize air drive for the heat exchange air duct 510 and air drive for the air mixing air duct 610.

[0068] The second partition 320 is arranged at the air outlet of the air duct of the chassis 210 and is spliced ​​with the first partition 310. When assembling the indoor unit of the air conditioner, the first crossflow impeller 520, the second crossflow impeller 620 and the first partition 310 are assembled as a whole, and then assembled with the shell 100 and the chassis 210. The first partition 310 and the second partition 320 cooperate to separate the air flow channel. With such a setting form, the shape of the first partition 310 is less affected by the shape of the air duct cross section. In this way, not only can the air flow channel be better separated by the cooperation of the first partition 310 and the second partition 320, but also it is conducive to the assembly of the indoor unit of the air conditioner.

[0069] Optionally, the second partition plate 320 is configured with a heat insulation cavity, and the heat insulation cavity is filled with heat preservation material.

[0070] When the indoor air conditioner is in cooling mode, the temperature of the heat exchange duct 510 is relatively low. The air humidity entering the mixed air duct 610 is relatively high, and condensed water is easily formed on the second partition 320. When the indoor air conditioner is in cooling mode for a long time, condensed water accumulates and drips from the indoor air conditioner or is blown out with the air from the mixed air duct 610, which affects the cleanliness of the environment where the indoor air conditioner is located and affects the user experience.

[0071] The second partition plate 320 is configured with a heat insulation cavity. For example, the second partition plate 320 includes two layers of plates, and a heat insulation cavity is formed between the two layers of plates. Filling the heat insulation cavity with heat preservation material can reduce the heat transfer between the air mixing duct 610 and the heat exchange duct 510, thereby reducing the condensation phenomenon caused by the lower temperature of the side of the second partition plate 320 facing the air mixing duct 610.

[0072] Optionally, the second partition 320 is provided with a heat-insulating material.

[0073] By attaching a heat-insulating material to the second partition plate 320, heat transfer between the heat exchange air duct 510 and the air mixing air duct 610 through the second partition plate 320 can also be reduced. This can reduce the temperature drop of the second partition plate 320, thereby reducing the condensation phenomenon on the side of the second partition plate 320 facing the air mixing air duct 610, and further reducing water dripping or water blowing from the air conditioner indoor unit.

[0074] Optionally, the second partition plate 320 and the bottom plate 210 are an integral structure.

[0075] The second partition plate 320 and the chassis 210 are an integral structure, which can improve the structural strength of the chassis 210 and the second partition plate 320, and improve the partitioning effect of the second partition plate 320. In addition, by adopting such a configuration, the number of assembly parts is reduced when the second partition plate 320 is provided, the assembly of the air conditioner indoor unit is simplified, and the manufacturing cost of the air conditioner indoor unit is reduced.

[0076] Optionally, the first partition plate 310 is configured with a heat insulation cavity, and the heat insulation cavity is filled with heat preservation material.

[0077] When the air conditioner indoor unit operates in cooling mode, the temperature of the heat exchange air duct 510 is relatively low. The air humidity entering the air mixing duct 610 is relatively high, and condensed water is easily formed on the first partition 310. When the air conditioner indoor unit operates in cooling mode for a long time, condensed water accumulates and drips from the air conditioner indoor unit or is blown out with the air from the air mixing duct 610, which affects the cleanliness of the environment where the air conditioner indoor unit is located and affects the user experience.

[0078] The first partition 310 is configured with an insulation cavity. For example, the first partition 310 includes two layers of plates, and the insulation cavity is formed between the two layers of plates. Filling the insulation cavity with insulation material can reduce the heat transfer between the air mixing duct 610 and the heat exchange duct 510, thereby reducing the condensation phenomenon caused by the lower temperature of the side of the first partition 310 facing the air mixing duct 610.

[0079] Optionally, the first partition 310 is provided with a heat-insulating material.

[0080] By attaching a heat-insulating material to the first partition plate 310, heat transfer between the heat exchange duct 510 and the air mixing duct 610 through the first partition plate 310 can also be reduced. This can reduce the temperature drop of the first partition plate 310, thereby reducing the condensation phenomenon on the side of the first partition plate 310 facing the air mixing duct 610, and further reducing water dripping or water blowing from the air conditioner indoor unit.

[0081] Optionally, the air conditioner indoor unit also includes a heat exchanger 400, which is arranged in the heat exchange air duct 510; the partition assembly 300 also includes a third partition 330, which is arranged in the air duct assembly 200 and is spliced ​​with the first partition 310, and a side surface of the third partition 330 is configured with a fixing groove 331, and a plurality of refrigerant pipes at one end of the heat exchanger 400 are embedded in the fixing groove 331.

[0082] The heat exchanger 400 is arranged in the heat exchange air duct 510, and serves as an evaporator in cooling and as a condenser in heating. The heat exchanger 400 includes a plurality of refrigerant pipes, and the third partition plate 330 is configured with a fixing groove 331, and the fixing groove 331 corresponds to at least one of the plurality of refrigerant pipes. That is, the third partition plate 330 not only plays a role of separation, but also serves as a bracket of the heat exchanger 400 and a side end sealing plate of the heat exchanger 400. The air flowing through the heat exchanger 400 flows along the heat exchange air duct 510 to the air duct outlet of the chassis 210 under the separation effect of the third partition plate 330, the second partition plate 320 and the first partition plate 310. With such a setting form, the third partition plate 330 can not only cooperate with the first partition plate 310 and the second partition plate 320 to play a better separation effect, but also play a role in installing and fixing the heat exchanger 400. This simplifies the structure of the air conditioner indoor unit and reduces the cost of the air conditioner indoor unit.

[0083] Optionally, the third partition plate 330 is provided with a plurality of fixing grooves 331 , and the heat exchanger 400 includes a plurality of refrigerant tubes, and ends of the plurality of refrigerant tubes are embedded in the plurality of fixing grooves 331 of the third partition plate 330 .

[0084] The third partition plate 330 not only fixes the heat exchanger 400, but also places the multiple refrigerant pipes in a preset position through the multiple grooves. When assembling the air conditioner indoor unit, the multiple refrigerant pipes of the heat exchanger 400 are fixed to the third partition plate 330, and the heat exchanger and the third partition plate are assembled to the air conditioner indoor unit as a whole. This optimizes the assembly process of the air conditioner indoor unit and improves the assembly efficiency of the air conditioner indoor unit.

[0085] Optionally, the third partition plate 330 is configured with a heat insulation cavity, and the heat insulation cavity is filled with heat preservation material.

[0086] When the indoor air conditioner is in cooling mode, the temperature of the heat exchange duct 510 is relatively low. The air humidity entering the air mixing duct 610 is relatively high, and condensation water is easily formed on the third partition plate 330. When the indoor air conditioner is in cooling mode for a long time, condensation water accumulates and drips from the indoor air conditioner or is blown out with the air from the air mixing duct 610, which affects the cleanliness of the environment where the indoor air conditioner is located and affects the user experience.

[0087] The third partition plate 330 is configured with an insulation cavity. For example, the third partition plate 330 includes two layers of plates, and the insulation cavity is formed between the two layers of plates. Filling the insulation cavity with insulation material can reduce the heat transfer between the air mixing duct 610 and the heat exchange duct 510, thereby reducing the condensation phenomenon caused by the lower temperature of the side of the third partition plate 330 facing the air mixing duct 610.

[0088] Optionally, the third partition 330 is provided with a heat-insulating material.

[0089] By attaching a heat-insulating material to the third partition plate 330, heat transfer between the heat exchange air duct 510 and the air mixing air duct 610 through the third partition plate 330 can also be reduced. This can reduce the degree of temperature drop of the third partition plate 330, thereby reducing the condensation phenomenon on the side of the third partition plate 330 facing the air mixing air duct 610, and further reducing water dripping or water blowing of the air conditioner indoor unit.

[0090] Optionally, the bottom plate 210 is configured with a water receiving groove 220 , and the first portion of the third partition plate 330 is inserted into the water receiving groove 220 .

[0091] The first portion of the third partition plate 330 is inserted into the water receiving groove 220, which can prevent the air in the heat exchange air duct 510 from flowing to the air mixing air duct 610 through the water receiving groove 220. In addition, the heat exchanger 400 is fixed to the third partition plate 330, and is fixed to the bottom plate 210 through the third partition plate 330, which is conducive to the fixation between the bottom plate 210 and the heat exchanger 400.

[0092] Optionally, the air conditioner indoor unit includes two partition components 300, which are respectively arranged at both ends of the duct component 200, a heat exchange duct 510 is defined between the two partition components 300, and two mixing air ducts 610 are defined by the two partition components 300 and the two ends of the duct component 200.

[0093] The air conditioner indoor unit includes two partition components 300, and a heat exchange air duct 510 is defined between the two partition components 300. Each partition component 300 forms a mixed air duct 610 with the side end of the housing 100 of the air conditioner indoor unit. That is, the heat exchange air duct 510 is located between the two mixed air ducts 610. When the air conditioner indoor unit is in operation, the air blown out from the mixed air ducts 610 on both sides is mixed with the air blown out from the middle heat exchange air duct 510 and then blown to the environment where the air conditioner indoor unit is located. With such a setting form, the mixed air outlet effect of the air conditioner indoor unit can be further improved.

[0094] Optionally, when the air-conditioning indoor unit includes two partition assemblies 300 , each partition assembly 300 includes a third partition plate 330 , and the two third partition plates 330 fix the two ends of the heat exchanger 400 respectively.

[0095] When assembling the heat exchanger 400, the two third partitions 330 are fixed to both ends of the heat exchanger 400, and then assembled to the air conditioner indoor unit as a whole. With such a configuration, the fixing effect of the air conditioner indoor unit on the heat exchanger 400 can be further improved.

[0096] Optionally, in the case that the air-conditioning indoor unit includes two partition assemblies 300 , the air-conditioning indoor unit includes two second cross-flow impellers 620 , and the two second cross-flow impellers are respectively arranged in the two air mixing ducts 610 .

[0097] This can further increase the air volume of the air mixing duct 610, thereby improving the air mixing effect of the air conditioner indoor unit.

[0098] Optionally, when the air-conditioning indoor unit includes two second cross-flow impellers 620 , the output shaft of the fan motor 730 is connected to one of the second cross-flow impellers 620 .

[0099] Two second tube-wheel wind wheels and one first crossflow wind wheel 520 are assembled as a wind wheel assembly, and the fan motor 730 is arranged at one side end of the wind wheel assembly. This is conducive to the fan motor 730 driving the first crossflow wind wheel 520 and the second crossflow wind wheel 620 to rotate, saving installation space and facilitating the miniaturization of the air conditioner indoor unit.

[0100] Optionally, the air conditioner indoor unit also includes a first swing blade 710, which is arranged at the air duct outlet of the chassis 210 corresponding to the mixed air duct 610. When the swing blade rotates to a first angle, the wind blown out through the mixed air duct 610 is deflected towards the direction of the heat exchange air duct 510.

[0101] The first swing blade 710 is provided so that the air blown out through the air mixing duct 610 can be more easily mixed with the air blown out through the heat exchange duct 510 .

[0102] Optionally, the air conditioner indoor unit further includes a second swing blade 720 , and the second swing blade 720 is arranged at the air duct outlet of the chassis 210 corresponding to the heating air duct.

[0103] A second swing blade 720 is provided, and the air outlet angle of the indoor unit of the air conditioner can be adjusted by rotating the swing blade. In addition, when the swing blade is swung toward the air mixing duct 610, the air blown out through the heat exchange duct 510 can be better mixed with the air blown out through the air mixing duct 610. The second swing blade 720 cooperates with the first swing blade 710 to better play the role of air mixing.

[0104] Optionally, the diameter of the second cross-flow wind wheel 620 is greater than the diameter of the first cross-flow wind wheel 520 .

[0105] The rotation of the second cross flow fan wheel 620 will not interfere with the heat exchanger 400, and the second cross flow fan wheel 620 can be provided with a cross flow fan wheel of a larger diameter. With such a configuration, the air volume of the air mixing duct can be increased, thereby improving the air mixing effect of the air conditioner indoor unit.

[0106] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner indoor unit, characterized in that: include: The shell is provided with an air inlet; An air duct assembly is disposed in the housing, wherein the air duct assembly defines an air flow channel connected to the air inlet; A partition component is arranged on the air duct component, and the partition component divides the air flow channel into a heat exchange air duct and an air mixing air duct; A first crossflow wind wheel is arranged in the heat exchange air duct; The second cross flow fan wheel is arranged in the air mixing duct, and the second cross flow fan wheel rotates coaxially with the first cross flow fan wheel and is drivingly connected.

2. The air conditioner indoor unit according to claim 1, characterized in that: The partition assembly comprises: The first partition is arranged in the air flow channel. The first partition is provided with a connecting hole. The first crossflow blower and the second crossflow blower are drivingly connected through the connecting hole.

3. The air conditioner indoor unit according to claim 2, characterized in that: One of the first crossflow wind wheel and the second crossflow wind wheel is provided with a plug-in shaft extending along the axial direction, and the other is configured with a plug-in groove along the axial direction. The plug-in shaft passes through the connecting hole and extends into the plug-in groove to drive and connect the first crossflow wind wheel with the second crossflow wind wheel.

4. The air conditioner indoor unit according to claim 2, characterized in that: A first groove is formed on a side of the first partition plate facing the first cross-flow wind wheel, and one end of the first cross-flow wind wheel extends into the first groove; and / or, A second groove is formed on a side of the first partition plate facing the second cross-flow wind wheel, and one end of the second cross-flow wind wheel extends into the second groove.

5. The air conditioner indoor unit according to claim 2, characterized in that: The air duct assembly includes a chassis, the chassis is provided with an air duct outlet, and the air duct outlet is connected to the air inlet through an air flow channel; The partition assembly further comprises: The second partition is arranged at the air duct outlet of the chassis, and the first partition is spliced ​​with the second partition.

6. The air conditioner indoor unit according to claim 5, characterized in that: The second partition is configured with a heat-insulating cavity, and the heat-insulating cavity is filled with a heat-insulating material; or, The second partition is provided with a heat-insulating material.

7. The air conditioner indoor unit according to claim 5, characterized in that: The second partition plate and the chassis are an integral structure.

8. The air conditioner indoor unit according to claim 5, characterized in that: Also includes: A heat exchanger is arranged in the heat exchange air duct; The partition assembly further comprises: The third partition is arranged on the air duct assembly and is spliced ​​with the first partition. A fixing groove is constructed on one side of the third partition, and a plurality of refrigerant pipes at one end of the heat exchanger are embedded in the fixing groove.

9. The air conditioner indoor unit according to claim 8, characterized in that: The bottom plate is configured with a water receiving groove, and the first portion of the third partition plate is inserted into the water receiving groove.

10. The air conditioner indoor unit according to any one of claims 1 to 9, characterized in that: It comprises two partition components, which are respectively arranged at the two ends of the air duct component, a heat exchange air duct is defined between the two partition components, and two air mixing air ducts are defined by the two partition components and the two ends of the air duct component.

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