An air conditioner indoor unit

Abstract

The application relates to the household electrical appliances technical field and discloses an air conditioner indoor unit, which comprises a casing, a casing accommodating cavity is formed in the casing, a base, a heat exchanger, a cross-flow fan and a driving motor are arranged in the casing accommodating cavity, the driving motor is arranged above the base, the base is further formed with a water receiving groove and an overflow drainage port, the water receiving groove is arranged below the heat exchanger, the bottom of the water receiving groove is provided with a water outlet, the water receiving groove is provided with a first groove wall, the first groove wall is arranged close to a casing air outlet, the top of the first groove wall is provided with an overflow gap; the top of the overflow drainage port corresponds to the overflow gap, the bottom of the overflow drainage port is used for being communicated with the indoor unit, so that the condensed water overflowing from the overflow gap can be concentrated and discharged to the indoor unit through the overflow drainage port. The air conditioner indoor unit can concentrate and discharge the condensed water to the indoor unit when the water outlet of the water receiving groove is blocked and the condensed water in the water receiving groove is about to overflow, so that the condensed water is prevented from overflowing everywhere and causing the short circuit of electrical components.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to an indoor unit for an air conditioner. Background Technology

[0002] The field of home appliance technology encompasses a wide range of product categories, including but not limited to refrigerators, washing machines, air conditioners, microwave ovens, dishwashers, and vacuum cleaners. The technological development trends for these products primarily focus on intelligentization, energy conservation and environmental protection, optimized user experience, and the application of new materials. Optimized user experience is achieved through design innovation and functional enhancement to meet consumers' demands for health, convenience, and personalization.

[0003] The indoor unit of the air conditioner has a base inside the casing. The base forms a water collection trough below the heat exchanger. The water collection trough can collect the condensate dripping from the heat exchanger and then discharge it to the outside through the drain pipe, preventing the condensate from flowing around and affecting the operation of electrical components.

[0004] However, after long-term use, due to lack of cleaning and maintenance, dust, debris and other garbage can clog the drain pipe of an air conditioner, causing condensate to accumulate in the water tank and not drain smoothly. After a certain period of time, the condensate will overflow from the water tank. The overflowing condensate flows around irregularly and may come into contact with the electrical components inside the casing, causing short circuits. This can directly lead to the user being unable to use the air conditioner or even serious accidents such as electric leakage. Utility Model Content

[0005] This application discloses an indoor air conditioner unit that can collect condensate water when it is about to overflow from the water collection tray and discharge it into the room, reminding the user to maintain the indoor air conditioner unit.

[0006] To achieve the above objectives, this application discloses an indoor air conditioner unit, comprising: a casing, wherein the casing is provided with a casing air inlet and a casing air outlet, and a casing receiving cavity is formed within the casing, wherein the casing receiving cavity is provided with:

[0007] A base, wherein a heat exchange air duct is formed within the base;

[0008] A heat exchanger for exchanging heat with the airflow passing through the air inlet of the housing;

[0009] A cross-flow fan is installed in the heat exchange duct. The cross-flow fan is used to introduce airflow into the housing through the housing air inlet, and after heat exchange by the heat exchanger, it is delivered to the room through the housing air outlet.

[0010] A drive motor is disposed above the base, and the drive motor is used to drive the cross-flow fan to rotate;

[0011] The base also has the following features:

[0012] A water collection tank, located below the heat exchanger, is used to collect condensate. The bottom of the water collection tank has an outlet for connecting to the outside environment. The water collection tank has the following features:

[0013] The first channel wall is located near the air outlet of the housing, and the top of the first channel wall has an overflow notch;

[0014] The base also has the following features:

[0015] An overflow drain outlet is arranged side by side with the first tank wall along the front-rear direction of the casing and located on the rear side of the first tank wall. The top of the overflow drain outlet corresponds to the overflow gap, and the bottom of the overflow drain outlet is used to communicate with the interior, so that the condensate overflowing from the overflow gap can be discharged into the interior through the overflow drain outlet.

[0016] In this way, the overflow drain outlet corresponds to the overflow gap, allowing condensate overflowing from the overflow gap to flow towards the overflow drain outlet. The condensate flowing towards the overflow drain outlet will eventually be discharged into the room from there. This design prevents condensate from overflowing from the drip tray and flowing into various parts of the unit housing, which could cause short circuits in the electrical components inside the housing due to contact with condensate. Because the condensate is discharged into the room, users can also promptly detect any abnormalities in the indoor unit and perform timely maintenance, including repairing the drip tray outlet, to ensure that the condensate can be discharged normally to the outside, guaranteeing the normal operation of the indoor unit.

[0017] As an optional implementation, the overflow notch is located below the drive motor.

[0018] Therefore, when the overflow notch is located below the drive motor, the condensate below the drive motor can be discharged in time, preventing condensate from contacting the drive motor and causing damage to the drive motor, thus affecting the normal operation of the indoor unit of the air conditioner.

[0019] As an optional implementation, the overflow notch is spaced apart from the cross-flow fan along the axial direction of the cross-flow fan.

[0020] In this way, by separating the overflow notch from the cross-flow fan, it is possible to prevent the overflowing condensate from being splashed into other parts of the housing cavity when the cross-flow fan is rotating, thus preventing water from entering other components inside the housing cavity.

[0021] As an optional implementation, the base also includes:

[0022] A water-blocking rib is installed at the edge of the overflow drain outlet away from the first tank wall.

[0023] Thus, the water-retaining ribs, positioned along the edge away from the first tank wall, prevent condensate from flowing across the overflow drain and away from the first tank wall as it flows from the overflow notch to the overflow drain. This avoids condensate from scattering throughout the housing cavity and contacting electrical components, which could cause short circuits and damage. Additionally, the water-retaining ribs also increase the strength of the base.

[0024] As an optional implementation, the base also includes:

[0025] The first dividing rib is located along the axial direction of the cross-flow fan and is disposed between the overflow drain and the cross-flow fan.

[0026] Thus, the first partition rib is set along the axial direction of the cross-flow fan between the cross-flow fan and the overflow drain, which can separate the overflow drain and the cross-flow fan. This prevents condensate from being discharged from the overflow drain into the room and splashing onto other parts of the housing cavity under the action of the cross-flow fan, causing water to enter other parts of the housing cavity.

[0027] As an optional implementation, there are multiple overflow drain outlets, which are spaced apart along the axial direction of the cross-flow fan;

[0028] The base also has the following features:

[0029] Multiple second partition ribs are provided, each of which is disposed between two adjacent overflow outlets.

[0030] In this way, multiple overflow drain outlets are spaced apart along the axial direction of the cross-flow fan, ensuring sufficient drainage area and smooth drainage while avoiding large, isolated openings on the base that could affect its strength. The second partition rib further enhances the strength of the plate between adjacent overflow drain outlets, thereby improving the overall strength of the base.

[0031] As an optional implementation, the relationship between the height h1 of the first partition rib and the height h2 of the second partition rib satisfies: h1≥h2.

[0032] This prevents condensate from accumulating at the overflow drain, causing the water level to rise and flow towards the cross-flow fan. This can lead to condensate splashing onto other parts of the housing cavity, causing water to enter other components and short-circuit electrical components.

[0033] As an alternative implementation, along the axial direction of the cross-flow fan and from the cross-flow fan toward the drive motor, the height of each of the second partition ribs increases sequentially.

[0034] In this way, the progressively increasing height h2 of each second partition rib allows condensate to preferentially enter the overflow drain closest to the first partition rib. If this overflow drain cannot promptly remove the condensate, causing it to accumulate and the water level to rise, it will then flow into the second overflow drain closest to the first partition rib. This makes the condensate drainage more concentrated, easier for users to detect, and facilitates timely maintenance of the indoor air conditioning unit. Furthermore, the increment in height for each second partition rib can be the same.

[0035] As an optional implementation, the relationship between the height h3 of the water-blocking rib and the height h2 of the second separating rib satisfies: h3≥h2.

[0036] Thus, the height h3 of the water-blocking rib can be determined based on the obstacles above. When there is a drive motor above, it can be slightly lower than the drive motor to avoid interference with the drive. When there are no obstacles, the height h3 of the water-blocking rib should not be lower than the height h2 of the second partition rib. This prevents the water level of the condensate from rising instead of overflowing from the second partition rib to the adjacent overflow drain when the second partition rib with increasing height is set to separate the overflow drains. Instead, the condensate overflows from the water-blocking rib and flows to other positions in the housing cavity, causing water to enter other components in the housing cavity and resulting in short circuits in electrical components.

[0037] As an optional implementation, the top opening area of ​​the overflow drain is larger than its bottom opening area.

[0038] In this way, the design, which is wider at the top and narrower at the bottom, can better collect the condensate water overflowing from the overflow gap nearby, and drain the condensate water more concentrated at the bottom of the base, making it easier for users to detect abnormal conditions of the air conditioner indoor unit and maintain it in a timely manner.

[0039] Compared with the prior art, the beneficial effects of this application are:

[0040] The air conditioner indoor unit provided in this embodiment has a base with a water collection trough to collect condensate generated by the heat exchanger and discharge it outdoors through an outlet. Furthermore, the first wall of the water collection trough has an overflow notch. When the outlet is blocked, the condensate accumulates in the trough and overflows from the overflow notch when it is about to overflow. Under gravity, the condensate flows to the overflow drain and is then discharged into the room. This structure not only promptly discharges overflowing condensate outside the casing cavity, preventing it from spreading and causing short circuits in the electrical components, but also alerts the user by centrally discharging the condensate into the room. Since the indoor environment is where users are active, the centralized discharge of condensate into the room makes it easier for users to notice. When users see the indoor unit discharging water into the room, they can detect any abnormalities and perform timely maintenance. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit disclosed in an embodiment of this application;

[0043] Figure 2 This is a schematic cross-sectional view of the indoor unit of an air conditioner disclosed in an embodiment of this application;

[0044] Figure 3 This is a schematic diagram of the air conditioner indoor unit disclosed in the embodiments of this application, omitting the casing and part of the internal structure;

[0045] Figure 4 This is a schematic diagram of the base, cross-flow fan, and drive motor disclosed in an embodiment of this application;

[0046] Figure 5 The embodiments disclosed in this application Figure 4 A schematic diagram of the cross-sectional structure;

[0047] Figure 6 The embodiments disclosed in this application Figure 5 Enlarged structural diagram at point A;

[0048] Figure 7 This is a schematic diagram of the structure of the base disclosed in the embodiments of this application;

[0049] Figure 8 The embodiments disclosed in this application Figure 7 Enlarged structural diagram at point B;

[0050] Figure 9 This is a schematic cross-sectional view of the base disclosed in an embodiment of this application;

[0051] Figure 10 The embodiments disclosed in this application Figure 9 Enlarged structural diagram at point C;

[0052] Figure 11 This is a schematic diagram showing the height dimensions of the first partition bar, the second partition bar, and the water-blocking bar disclosed in the embodiments of this application.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100-Indoor unit of air conditioner; 10-Casing; 101-Air inlet of casing; 102-Air outlet of casing; 103-Casing receiving cavity; 20-Base; 201-Heat exchange air duct; 21-Water receiving trough; 211-First trough wall; 2111-Overflow notch; 22-Overflow drain; 23-Water baffle; 24-First partition rib; 25-Second partition rib; 30-Heat exchanger; 40-Cross-flow fan; 50-Drive motor. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] In this application, the terms "upper," "lower," "front," "top," "bottom," "inner," "outer," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0057] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0058] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0059] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0060] The field of home appliance technology encompasses a wide range of product categories, including but not limited to refrigerators, washing machines, air conditioners, microwave ovens, dishwashers, and vacuum cleaners. The technological development trends for these products primarily focus on intelligentization, energy conservation and environmental protection, optimized user experience, and the application of new materials. Optimized user experience is achieved through design innovation and functional enhancement to meet consumers' demands for health, convenience, and personalization.

[0061] The indoor unit of the air conditioner has a base inside the casing. The base forms a water collection trough below the heat exchanger. The water collection trough can collect the condensate dripping from the heat exchanger and then discharge it to the outside through the drain pipe, preventing the condensate from flowing around and affecting the operation of electrical components.

[0062] However, after long-term use, due to lack of cleaning and maintenance, dust, debris and other garbage can clog the drain pipe of an air conditioner, causing condensate to accumulate in the water tank and not drain smoothly. After a certain period of time, the condensate will overflow from the water tank. The overflowing condensate flows around irregularly and may come into contact with the electrical components inside the casing, causing short circuits. This can directly lead to the user being unable to use the air conditioner or even serious accidents such as electric leakage.

[0063] Based on this, this application discloses an indoor air conditioner unit that can collect condensate water when it is about to overflow from the water collection tray and discharge it into the room, reminding the user to maintain the indoor air conditioner unit.

[0064] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0065] Please see Figures 1 to 5 , Figure 1 This is a schematic diagram of the structure of the air conditioner indoor unit 100 disclosed in an embodiment of this application. Figure 2 This is a schematic cross-sectional view of the indoor unit 100 of the air conditioner disclosed in an embodiment of this application. Figure 3 This is a schematic diagram of the air conditioner indoor unit 100 disclosed in this application, omitting the casing 10 and part of the internal structure. Figure 4 This is a schematic diagram of the structure of the base 20, the cross-flow fan 40, and the drive motor 50 disclosed in the embodiments of this application. Figure 5 The embodiments disclosed in this application Figure 4 A schematic diagram of the cross-sectional structure. Figure 6 The embodiments disclosed in this application Figure 5An enlarged structural diagram at point A. This application discloses an indoor air conditioning unit 100, which includes a casing 10. The casing 10 has a casing air inlet 101 and a casing air outlet 102, and a casing receiving cavity 103 is formed inside the casing 10. The casing receiving cavity 103 is provided with a base 20, a heat exchanger 30, a cross-flow fan 40, and a drive motor 50. A heat exchange duct 201 is formed inside the base 20. The heat exchanger 30 is used to exchange heat with the airflow flowing through the casing air inlet 101. The cross-flow fan 40 is disposed inside the heat exchange duct 201 and is used to introduce airflow from the casing air inlet 101 into the casing 10, and after heat exchange by the heat exchanger 30, it is delivered to the room through the casing air outlet 102. The drive motor 50 is disposed above the base 20 and is used to drive the cross-flow fan. 40 rotation; the base 20 also forms a water receiving trough 21, which is located below the heat exchanger 30 and is used to collect condensate. The bottom of the water receiving trough 21 has a water outlet for connecting to the outside. The water receiving trough 21 has a first trough wall 211, which is located near the air outlet 102 of the casing. The top of the first trough wall 211 has an overflow notch 2111. The base 20 also forms an overflow drain 22, which is arranged side by side with the first trough wall 211 along the front and rear direction of the casing 10 and is located behind the first trough wall 211. The top of the overflow drain 22 corresponds to the overflow notch 2111, and the bottom of the overflow drain 22 is used to connect to the room so that the condensate overflowing from the overflow notch 2111 can be concentrated and discharged into the room through the overflow drain 22.

[0066] Specifically, in combination Figure 1 The air conditioner indoor unit 100 proposed in this application includes a housing 10, the housing 10 is provided with a housing air inlet 101 and a housing air outlet 102, and a housing receiving cavity 103 is formed inside the housing 10.

[0067] In some embodiments, combined with Figure 2 and Figure 3 A heat exchanger 30 is installed inside the housing cavity 103. The heat exchanger 30 is used to exchange heat with the airflow passing through the air inlet 101 of the housing. When the air conditioner is cooling, the low-temperature refrigerant flowing in the heat exchanger 30 absorbs heat from the airflow, thus cooling the air. When heating, the high-temperature refrigerant releases heat to the airflow, thus warming the air. The heat exchanger 30 typically adopts a finned structure to increase the contact area with the airflow, improve heat exchange efficiency, and ensure that the air entering the room reaches the set temperature.

[0068] In some embodiments, combined with Figure 2 and Figure 3A cross-flow fan 40 is installed inside the housing cavity 103. The cross-flow fan 40 is used to introduce airflow into the housing 10 through the housing air inlet 101, and after heat exchange by the heat exchanger 30, it is delivered to the room through the housing air outlet 102. When working, the cross-flow fan 40 generates negative pressure by rotating, which draws indoor air from the housing air inlet 101. After heat exchange by the heat exchanger 30, the processed air is then delivered into the room through the housing air outlet 102 by the thrust of the fan, thus completing the circulation and renewal of indoor air.

[0069] In some embodiments, combined with Figure 5 The base 20 also forms a water collection trough 21, which can be formed by upward-protruding ribs of the base 20. The shape of the water collection trough 21 is not limited, but it is located below the heat exchanger 30. When condensate forms on the heat exchanger 30 and drips downwards, it can drip into the water collection trough 21. By collecting the condensate dripping from the heat exchanger 30 through the water collection trough 21, the condensate can be prevented from flowing around in the housing cavity 103 and from contacting the electrical components inside the housing cavity 103, which could cause the electrical components to short-circuit due to water.

[0070] In some embodiments, combined with Figure 6 The ribs that protrude upward from the base 20 to form the water receiving tank 21, one of which is the first tank wall 211 near the air outlet 102 of the housing. An overflow notch 2111 is provided at the top of the first tank wall 211. When condensate accumulates in the water receiving tank 21 and is about to overflow, it can preferentially flow out from the overflow notch 2111. The overflow notch 2111 can guide the condensate that is about to overflow, preventing the condensate from overflowing and flowing to various parts of the housing cavity 103, which would cause the electrical components in the housing cavity 103 to come into contact with the condensate and cause a short circuit.

[0071] Please see Figures 6 to 8 , Figure 7 This is a schematic diagram of the structure of the base 20 disclosed in the embodiments of this application. Figure 8 The embodiments disclosed in this application Figure 7Enlarged structural diagram at point B. In some embodiments, the front-to-back direction of the housing 10 is from the front panel to the back panel. The base 20 has a through hole running vertically through the rear side of the first groove wall 211 along the front-to-back direction of the housing 10, forming an overflow drain 22. The overflow drain 22 also corresponds to the overflow notch 2111, allowing the condensate overflowing from the overflow notch 2111 to flow to the overflow drain 22. The condensate flowing to the overflow drain 22 will eventually be discharged into the room from the overflow drain 22. This arrangement can prevent the condensate from the water tank 21 from overflowing and flowing to various parts of the housing cavity 103, causing the electrical components in the housing cavity 103 to come into contact with the condensate and short-circuit. Because the condensate is discharged into the room, users can promptly detect any abnormalities in the indoor unit 100 of the air conditioner, perform timely maintenance on the indoor unit 100, and repair the outlet of the water tank 21 so that the condensate can be discharged normally to the outside through the outlet, ensuring the normal working condition of the indoor unit 100 of the air conditioner.

[0072] According to an embodiment of the present invention, the indoor unit 100 of the air conditioner has a base 20 with a water collection trough 21 for collecting condensate from the heat exchanger 30 and discharging it outdoors through an outlet. Furthermore, the first wall 211 of the water collection trough 21 has an overflow notch 2111. When the outlet is blocked, the condensate accumulates in the water collection trough 21 and overflows from the overflow notch 2111 when it is about to overflow. Under gravity, the condensate flows to the overflow drain 22 and is then concentrated and discharged indoors. This structure not only promptly discharges the overflowing condensate to the outside of the housing cavity 103, preventing condensate from overflowing and causing short circuits in the electrical components within the housing cavity 103, but also alerts the user by centrally discharging the condensate indoors. Since the indoor environment is the user's activity area, the concentrated discharge of condensate indoors makes it easier for the user to notice. When the user sees the indoor unit 100 discharging water indoors, they can detect any abnormality and promptly perform maintenance on the indoor unit 100.

[0073] Combination Figure 5 and Figure 6 In some embodiments, the overflow notch 2111 is located below the drive motor 50.

[0074] Specifically, the overflow notch 2111 can be located at one end away from the drive motor 50, or at various locations on the first groove wall 211. Setting the overflow notch 2111 below the drive motor 50 not only avoids damaging the integrity of other parts of the first groove wall 211 and avoids affecting the volute tongue setting on the first groove wall 211, but also protects the drive motor 50. The drive motor 50 is a relatively important electrical component of the air conditioner indoor unit 100. When the overflow notch 2111 is located below the drive motor 50, the condensate below the drive motor 50 can be discharged in time, preventing condensate from contacting the drive motor 50 and causing damage to the drive motor 50, thus affecting the normal operation of the air conditioner indoor unit 100.

[0075] Combination Figure 4 , Figure 5 and Figure 7 , Figure 7 This is a schematic diagram of the base 20 disclosed in an embodiment of this application. In some embodiments, the overflow notch 2111 is spaced apart from the cross-flow fan 40 along the axial direction of the cross-flow fan 40.

[0076] Specifically, the projection of the overflow notch 2111 along the front-rear direction of the housing 10 can be partially or entirely located on the cross-flow fan 40, or along the axial direction of the cross-flow fan 40. The overflow notch 2111 can be spaced apart from the cross-flow fan 40. By spacing the overflow notch 2111 from the cross-flow fan 40, it can be prevented that when the cross-flow fan 40 rotates, the overflowing condensate water will be carried up and splashed to other positions in the housing cavity 103, causing water to enter other components in the housing cavity 103.

[0077] Combination Figures 7 to 10 , Figure 8 The embodiments disclosed in this application Figure 7 Enlarged structural diagram at point B. Figure 9 This is a schematic cross-sectional view of the base 20 disclosed in an embodiment of this application. Figure 10 The embodiments disclosed in this application Figure 9 Enlarged structural diagram at point C. In some embodiments, the base 20 also has a water-blocking rib 23, which is disposed at the edge of the overflow drain 22 away from the first tank wall 211.

[0078] Specifically, the base 20 can be equipped with either an overflow drain 22 for drainage or a water-blocking rib 23. The water-blocking rib 23 is positioned along the edge of the overflow drain 22, either flush against it or with a distance between them. When a large amount of condensate overflows, the overflow drain 22 may not be able to drain it in time. The water-blocking rib 23, positioned away from the first groove wall 211, prevents the condensate from flowing from the overflow notch 2111 towards the overflow drain 22, thus preventing it from flowing across the overflow drain 22 and away from the first groove wall 211. This avoids the condensate from scattering within the housing cavity 103, contacting electrical components, and causing short circuits or damage. Furthermore, the water-blocking rib 23 also increases the strength of the base 20.

[0079] Combination Figure 7 and Figure 8 In some embodiments, the base 20 is also formed with a first partition 24, which is disposed between the overflow drain 22 and the cross-flow fan 40 along the axial direction of the cross-flow fan 40.

[0080] Specifically, the overflow notch 2111 and the cross-flow fan 40 are spaced apart along the axial direction of the cross-flow fan 40, and the overflow drain port 22 corresponding to the overflow notch 2111 is also spaced apart along the axial direction of the cross-flow fan 40. It is possible that the overflow drain port 22 and the cross-flow fan 40 are simply spaced apart, or a first partition rib 24 can be added between the overflow drain port 22 and the cross-flow fan 40. The first partition rib 24 is positioned along the axial direction of the cross-flow fan 40 between the cross-flow fan 40 and the overflow drain port 22, which can separate the overflow drain port 22 and the cross-flow fan 40, preventing condensate from being discharged from the overflow drain port 22 into the room and splashing onto other parts of the housing cavity 103 under the action of the cross-flow fan 40, thus preventing water from entering other components inside the housing cavity 103.

[0081] Combination Figure 7 and Figure 8 In some embodiments, there are multiple overflow drain ports 22, which are spaced apart along the axial direction of the cross-flow fan 40; the base 20 also has multiple second partition ribs 25, each of which is disposed between two adjacent overflow drain ports 22.

[0082] Specifically, the overflow drain 22 can be a single, large through-hole for drainage. Multiple overflow drains 22 can also be arranged at intervals along the axial direction of the cross-flow fan 40, ensuring sufficient drainage area and smooth drainage while avoiding large, isolated openings on the base 20 that could affect its strength. A second partition rib 25 can also be provided between adjacent overflow drains 22. This second partition rib 25 increases the strength of the plate between adjacent overflow drains 22, further enhancing the strength of the base 20. The cross-section of the overflow drain 22 can be rectangular, circular, triangular, etc., with no specific shape restrictions.

[0083] Combination Figure 11 , Figure 11 The schematic diagram of the height dimensions of the first partition rib 24, the second partition rib 25 and the water-blocking rib 23 disclosed in the embodiments of this application shows that in some embodiments, the relationship between the height h1 of the first partition rib 24 and the height h2 of the second partition rib 25 satisfies: h1≥h2.

[0084] Specifically, such as Figure 11 As shown ( Figure 11 and Figure 6 All Figure 5 Enlarged view of point A in the middle, but Figure 11 The structure in the example is another embodiment. Figure 11 The height h2 of the second partition rib 25 is increasing. The height h1 of the first partition rib 24 and the height h2 of the second partition rib 25 can be unlimited, or the height h1 of the first partition rib 24 can be limited to be higher. This can prevent the overflow drain outlet 22 from failing to drain the condensate in time, causing the condensate to accumulate and the water level to rise and flow to the cross-flow fan 40. This would cause the condensate to splash onto other parts of the housing cavity 103 under the drive of the cross-flow fan 40, causing water to enter other parts of the housing cavity 103 and short-circuit the electrical components.

[0085] Combination Figure 11 In some embodiments, along the axial direction of the cross-flow fan 40 and from the cross-flow fan 40 to the drive motor 50, the height h2 of each second partition rib 25 increases sequentially.

[0086] Specifically, the height h2 of each of the second partition ribs 25 can be the same, all lower than the overflow gap 2111, or it can increase sequentially. This sequential increase in the height h2 of each second partition rib 25 allows condensate to preferentially enter the overflow drain 22 closest to the first partition rib 24. When this overflow drain 22 cannot drain the condensate in time, causing it to accumulate and the water level to rise, it then enters the second overflow drain 22 closest to the first partition rib 24. This makes the condensate drainage more concentrated, easier for users to detect, and allows for timely maintenance of the indoor unit 100. Furthermore, the increment in height of each second partition rib 25 can be the same.

[0087] Combination Figure 11 In some embodiments, the relationship between the height h3 of the water-blocking rib 23 and the height h2 of the second partition rib 25 satisfies: h3≥h2.

[0088] Specifically, the height h3 of the water-blocking rib 23 can be determined according to the obstacles above. When there is a drive motor 50 above, it can be slightly lower than the drive motor 50 to avoid interference with the drive. When there are no obstacles, the height h3 of the water-blocking rib 23 should not be lower than the height h2 of the second partition rib 25 to prevent the water level of the condensate from rising instead of overflowing from the second partition rib 25 to the adjacent overflow drain 22 when the second partition rib 25 is set with increasing height to separate each overflow drain 22. Instead, the condensate overflows from the water-blocking rib 23 and flows to other positions in the housing cavity 103, causing water to enter other components in the housing cavity 103 and resulting in short circuits in electrical components.

[0089] Combination Figure 11 In some embodiments, the top opening area of ​​the overflow drain 22 is larger than its bottom opening area.

[0090] Specifically, the overflow drain outlet 22 can be a cylindrical through hole or an flared through hole that is wider at the top and narrower at the bottom, with the top opening area larger than the bottom opening area. This design allows for better collection of condensate overflowing from the overflow gap 2111 and discharge of the condensate more concentrated below the base 20, making it easier for users to detect abnormal conditions of the air conditioner indoor unit 100 and perform timely maintenance on the air conditioner indoor unit 100.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air conditioner indoor unit (100), characterized in that, include: A housing (10) is provided with a housing air inlet (101) and a housing air outlet (102), and a housing receiving cavity (103) is formed inside the housing (10), wherein the housing receiving cavity (103) is provided with: A base (20) having a heat exchange duct (201) formed therein; Heat exchanger (30) is used to exchange heat with the airflow flowing through the air inlet (101) of the housing; A cross-flow fan (40) is installed in the heat exchange duct (201). The cross-flow fan (40) is used to introduce airflow into the housing (10) through the housing air inlet (101), and after heat exchange by the heat exchanger (30), it is delivered to the room through the housing air outlet (102). A drive motor (50) is disposed above the base (20), and the drive motor (50) is used to drive the cross-flow fan (40) to rotate; The base (20) also has the following features: A water collection tank (21) is disposed below the heat exchanger (30) for collecting condensate. The bottom of the water collection tank (21) has a water outlet for connecting to the outside. The water collection tank (21) has the following features: The first groove wall (211) is provided near the air outlet (102) of the housing, and the top of the first groove wall (211) has an overflow notch (2111); The base (20) also has the following features: An overflow drain (22) is arranged side by side with the first tank wall (211) along the front-back direction of the casing (10) and is located on the rear side of the first tank wall (211). The top of the overflow drain (22) corresponds to the overflow gap (2111), and the bottom of the overflow drain (22) is used to communicate with the room so that the condensate overflowing from the overflow gap (2111) can be discharged into the room through the overflow drain (22).

2. The air conditioner indoor unit (100) according to claim 1, characterized in that, The overflow notch (2111) is located below the drive motor (50).

3. The air conditioner indoor unit (100) according to claim 1, characterized in that, Along the axial direction of the cross-flow fan (40), the overflow notch (2111) is spaced apart from the cross-flow fan (40).

4. The air conditioning indoor unit (100) according to any one of claims 1-3, characterized in that, The base (20) also has the following features: Water-blocking ribs (23) are provided at the edge of the overflow drain (22) away from the first tank wall (211).

5. The air conditioner indoor unit (100) according to claim 4, characterized in that, The base (20) also has the following features: The first partition rib (24) is arranged along the axial direction of the cross-flow fan (40) between the overflow drain (22) and the cross-flow fan (40).

6. The air conditioner indoor unit (100) according to claim 5, characterized in that, There are multiple overflow drain outlets (22), and the multiple overflow drain outlets (22) are spaced apart along the axial direction of the cross-flow fan (40); The base (20) also has the following features: Multiple second partition ribs (25) are provided between two adjacent overflow drain outlets (22).

7. The air conditioner indoor unit (100) according to claim 6, characterized in that, The relationship between the height h1 of the first partition bar (24) and the height h2 of the second partition bar (25) satisfies: h1≥h2.

8. The air conditioner indoor unit (100) according to claim 7, characterized in that, Along the axial direction of the cross-flow fan (40) and from the cross-flow fan (40) toward the drive motor (50), the height of each of the second partition ribs (25) increases sequentially.

9. The air conditioner indoor unit (100) according to claim 7, characterized in that, The relationship between the height h3 of the water-blocking rib (23) and the height h2 of the second dividing rib (25) satisfies: h3≥h2.

10. The air conditioner indoor unit (100) according to claim 6, characterized in that, The top opening area of ​​the overflow drain (22) is larger than its bottom opening area.

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