Air conditioner indoor unit and air conditioner

Abstract

The present application provides an indoor unit of an air conditioner and an air conditioner. The indoor unit of the air conditioner comprises a casing, an air duct, a fan and a cleaning device, the air duct and the cleaning device are both arranged in the casing, and the fan is arranged in the air duct; the cleaning device comprises a water storage tank and a water spray pipe, an air inlet and a water outlet are respectively arranged at both ends of the water spray pipe, and a water inlet is arranged between the air inlet and the water outlet, the water inlet is arranged in the water storage tank, the air inlet is communicated with the air outlet side of the fan, and the water outlet is communicated with the air inlet side of the fan and faces the fan. The present application provides an air inlet and a water outlet at both ends of a water spray pipe of a cleaning device, and a water inlet is provided between the air inlet and the water outlet, the water inlet is located in a water storage tank, the air inlet is connected to an air outlet side of the fan, the water outlet is connected to an air inlet side of the fan and faces the fan, so that the pressure difference between the air inlet side and the air outlet side when the fan is running can be used to drive the air to flow between the air inlet and the water outlet of the water spray pipe, so as to drive the water in the water storage tank to spray toward the fan blades, thereby achieving cleaning of the fan blades.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioning, and in particular, relates to an air conditioning indoor unit and an air conditioner. Background Art

[0002] The fan of the air conditioner indoor unit is used to drive the indoor air to circulate. After running for a long time, the surface of the fan blades is easily contaminated with dust and stains and breeds bacteria, which will cause the noise to increase and the air volume to decrease, affecting the user's health and comfort experience. However, since the fan of the air conditioner indoor unit is inside the air duct, it is not convenient to disassemble and clean. Utility Model Content

[0003] The embodiments of the present application provide an air conditioner indoor unit and an air conditioner to solve the problem that the fan of the existing air conditioner indoor unit is inconvenient to disassemble and clean.

[0004] In a first aspect, an embodiment of the present application provides an air-conditioning indoor unit, which includes a casing, an air duct, a fan and a cleaning device, wherein the air duct and the cleaning device are both arranged in the casing, and the fan is arranged in the air duct; the cleaning device includes a water storage tank and a water spray pipe, and the two ends of the water spray pipe are respectively provided with an air inlet and a water outlet and a water inlet is provided between the air inlet and the water outlet, the water inlet is arranged in the water storage tank, the air inlet is connected to the air outlet side of the fan, and the water outlet is connected to the air inlet side of the fan and faces the fan.

[0005] Optionally, the air-conditioning indoor unit further includes a heat exchanger, the heat exchanger is disposed in the casing, and the water storage tank is located below the heat exchanger.

[0006] Optionally, the fan has an air inlet and an air outlet, and one end of the water spray pipe having the water outlet is arranged at the air inlet, and one end of the water spray pipe having the air inlet is arranged at the air outlet.

[0007] Optionally, an overflow hole is provided on the side wall of the water storage tank.

[0008] Optionally, a drainage hole is provided at the bottom of the air duct, and the air conditioner indoor unit further includes a sewage trough, which is arranged in the casing and located below the drainage hole.

[0009] Optionally, the air conditioner indoor unit further includes a drain pipe, which is connected to the sewage tank to drain the water in the sewage tank.

[0010] Optionally, the casing is provided with an air inlet and an air outlet, and the air inlet and the air outlet are both connected to the air duct; the air-conditioning indoor unit also includes an air inlet door body and an air outlet door body, the air inlet door body is arranged at the air inlet to open or close the air inlet, and the air outlet door body is arranged at the air inlet to open or close the air outlet.

[0011] Optionally, the air conditioner indoor unit is configured as follows: in cleaning mode, the air inlet door body closes the air inlet, the air outlet door body closes the air outlet, and the blades of the fan rotate; and / or, in normal mode, the air inlet door body opens the air inlet, the air outlet door body opens the air outlet, and the blades of the fan rotate.

[0012] Optionally, the air inlet door body and the air outlet door body are both rotatably connected to the casing, and the air-conditioning indoor unit also includes a first driving member and a second driving member, the first driving member can drive the air inlet door body to rotate to open or close the air inlet, and the second driving member can drive the air outlet door body to rotate to open or close the air outlet.

[0013] In a second aspect, an embodiment of the present application further provides an air conditioner, which includes the above-mentioned air conditioner indoor unit.

[0014] The air conditioner indoor unit and air conditioner provided in the embodiment of the present application are provided with a cleaning device in the housing of the air conditioner indoor unit, the cleaning device including a water storage tank and a water spray pipe, air inlet and water outlet are respectively provided at both ends of the water spray pipe, and a water inlet is provided between the air inlet and the water outlet, the water inlet is located in the water storage tank, the air inlet is connected to the air outlet side of the fan, the water outlet is connected to the air inlet side of the fan and faces the fan, so that the pressure difference between the air inlet side and the air outlet side when the fan is running can be used to drive the air to flow between the air inlet and the water outlet of the water spray pipe, thereby driving the water in the water storage tank to spray to the surface of the fan blades of the fan, so as to achieve the cleaning of the fan blades. This cleaning scheme does not require the fan to be disassembled from the inside of the air duct, and the cleaning is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative work. In the following description, the same figure numbers represent the same parts.

[0016] Figure 1 A schematic diagram of the structure of an air-conditioning indoor unit provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1The structural schematic diagram of the cleaning device in the air conditioner indoor unit is shown.

[0018] Figure 3 A schematic diagram of the structure of an air-conditioning indoor unit in normal mode provided in an embodiment of the present application.

[0019] Figure 4 A schematic diagram of the structure of an air-conditioning indoor unit in a cleaning mode provided in an embodiment of the present application.

[0020] Figure 5 A control logic diagram of an air-conditioning indoor unit provided in an embodiment of the present application.

[0021] Description of Figure Numbers:

[0022] 100, casing; 101, air inlet; 102, air outlet; 200, air duct; 201, drain hole; 300, fan; 400, cleaning device; 410, water storage tank; 420, water spray pipe; 421, air inlet; 422, water outlet; 423, water inlet; 500, heat exchanger; 610, sewage tank; 620, drain pipe; 710, air inlet door body; 720, air outlet door body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] The present application embodiment provides an air conditioner indoor unit, such as Figure 1 to Figure 4 As shown, the air conditioner indoor unit includes a casing 100, an air duct 200, a fan 300 and a cleaning device 400. The air duct 200 and the cleaning device 400 are both arranged in the casing 100, and the fan 300 is arranged in the air duct 200. The fan 300 is suitable for driving the air flow into the casing 100 and exporting it to the room through the air duct 200; the cleaning device 400 includes a water storage tank 410 and a water spray pipe 420, and the two ends of the water spray pipe 420 are respectively provided with an air inlet 421 and a water outlet 422, and a water inlet 423 is provided between the air inlet 421 and the water outlet 422, and the water inlet 423 is arranged in the water storage tank 410, the air inlet 421 is connected with the air outlet side of the fan 300, and the water outlet 422 is connected with the air inlet side of the fan 300 and faces the fan 300.

[0027] The air conditioner indoor unit provided in the embodiment of the present application is provided with a cleaning device 400 in the casing 100, and the cleaning device 400 includes a water storage tank 410 and a water spray pipe 420, and the two ends of the water spray pipe 420 are respectively provided with an air inlet 421 and a water outlet 422, and a water inlet 423 is provided between the air inlet 421 and the water outlet 422, and the water inlet 423 is located in the water storage tank 410, the air inlet 421 is connected to the air outlet side of the fan 300, and the water outlet 422 is connected to the air inlet side of the fan 300 and faces the fan 300, so that the pressure difference between the air inlet side and the air outlet side when the fan 300 is running can be used to drive the air to flow between the air inlet 421 and the water outlet 422 of the water spray pipe 420, thereby driving the water in the water storage tank 410 to spray to the surface of the fan blades of the fan 300, thereby achieving the cleaning of the surface of the fan blades of the fan 300. This cleaning solution can clean the fan blades of the fan 300 without removing the fan 300 from the inside of the air duct 200, making cleaning more convenient and solving the problem of inconvenient cleaning of the fan blades of the air conditioner indoor unit.

[0028] Specifically, the water spray pipe 420 is provided with an air inlet 421, a water inlet 423 and a water outlet 422, the air inlet 421 and the water outlet 422 are respectively arranged at both ends of the water spray pipe 420, the water inlet 423 is located between the air inlet 421 and the water outlet 422, and the water inlet 423 is immersed in the water storage tank 410 (that is, the water inlet 423 is located below the water level line in the water storage tank 410); when the fan 300 is running, the fan 300 A negative pressure is formed on the air inlet side, and a positive pressure is formed on the air outlet side of the fan 300. The pressure difference between the air inlet side and the air outlet side of the fan 300 will drive the air to flow between the air inlet 421 and the water outlet 422 of the water spray pipe 420, thereby driving the water in the water storage tank 410 to enter the water spray pipe 420 from the water inlet 423, and be sprayed from the water outlet 422 of the water spray pipe 420 to the surface of the fan blades of the fan 300, so as to clean the surface of the fan blades of the fan 300.

[0029] Optionally, an overflow hole is provided on the side wall of the water storage tank 410, so that when the water level of the water storage tank 410 exceeds a certain depth, water can be drained through the overflow hole to prevent the water in the water storage tank 410 from overflowing.

[0030] In some embodiments of the present application, Figure 1 , Figure 3 and Figure 4 As shown, the air conditioner indoor unit further includes a heat exchanger 500, which is disposed in the housing 100, and the water storage tank 410 is located below the heat exchanger 500. It is understood that when the air conditioner indoor unit operates in cooling mode, the heat exchanger 500 acts as an evaporator for heat exchange, and the water storage tank 410 located below the evaporator can collect and store condensed water generated on the surface of the evaporator; when the condensed water generated by the evaporator is insufficient, the water storage tank 410 can also store clean water added from the outside by the user. In other words, the water stored in the water storage tank 410 can be clean water added from the outside by the user, or it can be condensed water generated on the surface of the evaporator.

[0031] Optionally, the fan 300 has an air inlet and an air outlet, and a water spray pipe 420 is provided with an end of the water outlet 422 arranged at the air inlet of the fan 300, and a water spray pipe 420 is provided with an end of the air inlet 421 arranged at the air outlet of the fan 300, thereby utilizing the pressure difference between the air inlet side and the air outlet side when the fan 300 is running to drive the air to flow between the air inlet 421 and the water outlet 422 of the water spray pipe 420, so as to drive the water in the water tank 410 to spray onto the surface of the fan blades of the fan 300, so as to clean the surface of the fan blades of the fan 300.

[0032] In some embodiments of the present application, Figure 1 , Figure 3 and Figure 4As shown, a drainage hole 201 is provided at the bottom of the air duct 200, and the air conditioner indoor unit further includes a sewage tank 610, which is arranged in the housing 100 and below the drainage hole 201. By providing the drainage hole 201 at the bottom of the air duct 200, water dripping from the fan blades of the fan 300 in the air duct 200 can be collected in the sewage tank 610, that is, the sewage formed after cleaning the fan blades flows into the sewage tank 610 through the drainage hole 201 at the bottom of the air duct 200.

[0033] Optionally, the air conditioner indoor unit further includes a drain pipe 620 , which is connected to the sewage tank 610 to drain the water in the sewage tank 610 , that is, the water in the sewage tank 610 is drained through the drain pipe 620 .

[0034] like Figure 1 , Figure 3 and Figure 4 As shown, the housing 100 is provided with an air inlet 101 and an air outlet 102, both of which are connected to the air duct 200; the air conditioner indoor unit also includes an air inlet door body 710 and an air outlet door body 720, the air inlet door body 710 is arranged at the air inlet 101 to open or close the air inlet 101, and the air outlet door body 720 is arranged at the air inlet 101 to open or close the air outlet 102. Specifically, the heat exchanger 500 is located between the air inlet 101 and the entrance of the air duct 200, and the fan 300 is suitable for driving the air flow from the air inlet 101 into the housing 100 to exchange heat with the heat exchanger 500, and the air flow after heat exchange is led out from the outlet of the air duct 200 to the air outlet 102, and finally blown out from the air outlet 102 to the room.

[0035] Optional, such as Figure 3 As shown, the air conditioner indoor unit is configured as follows: in a normal mode (e.g., cooling mode and heating mode), the air inlet door body 710 opens the air inlet 101 of the casing 100, the air outlet door body 720 opens the air outlet 102 of the casing 100, and the fan blades 300 rotate, thereby driving the air flow from the air inlet 101 of the casing 100 into the casing 100 to exchange heat with the heat exchanger 500. After the air flow exchanges heat with the heat exchanger 500, the air flow is guided from the air duct 200 to the air outlet 102 of the casing 100, and finally blown out from the air outlet 102 of the casing 100 into the room.

[0036] Optional, such as Figure 4 As shown, the air conditioner indoor unit is configured as follows: in the cleaning mode, the air inlet door body 710 closes the air inlet 101 of the casing 100, the air outlet door body 720 closes the air outlet 102 of the casing 100, and the blades of the fan 300 rotate.

[0037] In some embodiments of the present application, the air inlet door body 710 and the air outlet door body 720 are both rotatably connected to the casing 100, and the air conditioner indoor unit also includes a first driving member and a second driving member. The first driving member can drive the air inlet door body 710 to rotate to open or close the air inlet 101 of the casing 100, and the second driving member can drive the air outlet door body 720 to rotate to open or close the air outlet 102 of the casing 100.

[0038] Specifically, the air inlet door body 710 has a first closed position and a first open position during the rotation process. When the air inlet door body 710 rotates to the first closed position, the air inlet door body 710 closes the air inlet 101 of the housing 100. When the air inlet door body 710 rotates to the first open position, the air inlet door body 710 opens the air inlet 101 of the housing 100. Similarly, the air outlet door body 720 has a second closed position and a second open position during the rotation process. When the air outlet door body 720 rotates to the second closed position, the air outlet door body 720 closes the air outlet 102 of the housing 100; when the air outlet door body 720 rotates to the second open position, the air outlet door body 720 opens the air outlet 102 of the housing 100.

[0039] Optionally, the first driving member may be a first motor, the motor shaft of which is connected to the air inlet door body 710, and can drive the air inlet door body 710 to rotate to open or close the air inlet 101 of the casing 100; the second driving member may be a second motor, the motor shaft of which is connected to the air outlet door body 720, and can drive the air outlet door body 720 to rotate to open or close the air outlet 102 of the casing 100.

[0040] It can be understood that by controlling the speed of the fan 300 of the air conditioner indoor unit, the opening and closing of the air inlet door body 710, and the opening and closing of the air outlet door body 720, the air conditioner indoor unit can switch between normal mode and cleaning mode; wherein, in the cleaning mode, the pressure difference between the air inlet side and the air outlet side of the fan 300 can be increased by controlling the periodic opening and closing of the air inlet door body 710 and the air outlet door body 720 and controlling the speed of the fan 300 to increase, thereby increasing the water spray volume of the water spray pipe 420 and improving the cleaning effect and cleaning speed.

[0041] For example, Figure 5 As shown, the control logic of the air conditioner indoor unit provided in the embodiment of the present application is as follows:

[0042] Step S1: After the air conditioner indoor unit is turned on and running, go to step S2.

[0043] Step S2: Determine whether the current mode is in cleaning mode, if yes, proceed to step S3, if no, proceed to step S7;

[0044] Step S3: The air inlet door 710 and the air outlet door 720 are both closed, and the speed of the fan 300 is increased to the highest wind speed and runs for X seconds, thereby ensuring that the pressure difference between the air inlet side and the air outlet side of the fan 300 is large enough, and the water spray pipe 420 has sufficient driving force to spray the water introduced from the water storage tank 410 by the water inlet 423 onto the fan blades of the fan 300; then enter step S4. Optionally, the value range of X can be 30 seconds to 60 seconds.

[0045] Step S4: The air outlet door 720 remains closed, the air inlet door 710 opens the air inlet 101, and the speed of the fan 300 is reduced to the lowest wind speed, and it runs for Y seconds, thereby reducing the pressure difference between the air inlet side and the air outlet side of the fan 300, which helps the water in the water storage tank 410 to enter the water spray pipe 420 from the water inlet 423, ensuring the water spraying amount; then enter step S5. Optionally, the value range of Y can be 10 seconds to 30 seconds.

[0046] Step S5: Determine whether the time to enter the cleaning mode is greater than T1, if yes, proceed to step S6, if no, return to step S3. Optionally, the value range of T1 can be 120 seconds to 600 seconds.

[0047] Step S6: The air inlet door 710 and the air outlet door 720 are both opened, the fan 300 is kept at the lowest speed, and runs for Z seconds to dry the moisture on the surface of the fan blades, and then exits the cleaning mode. Optionally, the value range of Z can be 30 seconds to 120 seconds.

[0048] Step S7: The air inlet door 710 and the air outlet door 720 are both opened, and the fan 300 operates at a rotation speed in a normal mode.

[0049] The embodiment of the present application also provides an air conditioner, which includes an air conditioner indoor unit. The specific structure of the air conditioner indoor unit refers to the above embodiment. Since the air conditioner adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0050] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0051] The air-conditioning indoor unit and air-conditioning provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An air conditioner indoor unit, characterized in that: The invention comprises a housing (100), an air duct (200), a fan (300) and a cleaning device (400), wherein the air duct (200) and the cleaning device (400) are both arranged in the housing (100), and the fan (300) is arranged in the air duct (200); The cleaning device (400) comprises a water storage tank (410) and a water spray pipe (420); an air inlet (421) and a water outlet (422) are respectively provided at two ends of the water spray pipe (420); a water inlet (423) is provided between the air inlet (421) and the water outlet (422); the water inlet (423) is arranged in the water storage tank (410); the air inlet (421) is communicated with the air outlet side of the fan (300); and the water outlet (422) is communicated with the air inlet side of the fan (300) and faces the fan (300).

2. The air conditioner indoor unit according to claim 1, characterized in that: The air conditioner indoor unit further comprises a heat exchanger (500), wherein the heat exchanger (500) is disposed in the casing (100), and the water storage tank (410) is located below the heat exchanger (500).

3. The air conditioner indoor unit according to claim 1, characterized in that: The fan (300) has an air inlet (101) and an air outlet (102); one end of the water spray pipe (420) provided with the water outlet (422) is arranged at the air inlet (101); and one end of the water spray pipe (420) provided with the air inlet (421) is arranged at the air outlet (102).

4. The air conditioner indoor unit according to claim 1, characterized in that: The side wall of the water storage tank (410) is provided with an overflow hole.

5. The air conditioner indoor unit according to claim 1, characterized in that: A drainage hole (201) is provided at the bottom of the air duct (200), and the air conditioner indoor unit further comprises a sewage tank (610), wherein the sewage tank (610) is arranged in the casing (100) and is located below the drainage hole (201).

6. The air conditioner indoor unit according to claim 5, characterized in that: The air conditioner indoor unit further comprises a drain pipe (620), wherein the drain pipe (620) is connected to the sewage tank (610) to drain the water in the sewage tank (610).

7. The air conditioner indoor unit according to any one of claims 1 to 6, characterized in that: The housing (100) is provided with an air inlet (101) and an air outlet (102), and the air inlet (101) and the air outlet (102) are both connected to the air duct (200); The air conditioner indoor unit further comprises an air inlet door body (710) and an air outlet door body (720); the air inlet door body (710) is arranged at the air inlet (101) to open or close the air inlet (101); and the air outlet door body (720) is arranged at the air inlet (101) to open or close the air outlet (102).

8. The air conditioner indoor unit according to claim 7, characterized in that: The air conditioner indoor unit is configured as: In the cleaning mode, the air inlet door body (710) closes the air inlet (101), the air outlet door body (720) closes the air outlet (102), and the fan blades of the fan (300) rotate; And / or, in the normal mode, the air inlet door body (710) opens the air inlet (101), the air outlet door body (720) opens the air outlet (102), and the fan blades of the fan (300) rotate.

9. The air conditioner indoor unit according to claim 7, characterized in that: The air inlet door body (710) and the air outlet door body (720) are both rotatably connected to the casing (100), and the air conditioner indoor unit also includes a first driving member and a second driving member, the first driving member can drive the air inlet door body (710) to rotate to open or close the air inlet (101), and the second driving member can drive the air outlet door body (720) to rotate to open or close the air outlet (102).

10. An air conditioner, characterized in that: The air conditioner comprises the air conditioner indoor unit according to any one of claims 1 to 9.

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