Air conditioner indoor unit and air conditioner

Abstract

The utility model belongs to the technical field of air conditioners, and particularly provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit aims at solving the problem that a fan in an existing air conditioner indoor unit is difficult to clean effectively. Therefore, the air conditioner indoor unit comprises a machine shell, a heat exchanger and a fan. The machine shell comprises a fixed part and a detachable part detachably connected with the fixed part. The heat exchanger is arranged in the machine shell. The draught fan is arranged in the machine shell and shielded by the dismounting part so that the draught fan can be exposed when the dismounting part is dismounted. The technical problem is solved, a user can conveniently clean the fan, and the fan can be effectively cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and specifically provides an air conditioner indoor unit and an air conditioner. Background Art

[0002] Existing air conditioners generally include an outdoor unit and an indoor unit. When the air conditioner is cooling, the outdoor unit releases heat and the indoor unit absorbs heat to cool the room. When the air conditioner is heating, the outdoor unit absorbs heat and the indoor unit releases heat to heat the room.

[0003] When cooling or heating, the air conditioner generally needs to rely on its refrigeration system. The refrigeration system includes a compressor, a condenser, a pressure-reducing component (expansion valve or capillary tube) and an evaporator connected end to end. Heat exchangers are arranged in the outdoor unit and the indoor unit respectively. When the air conditioner is working, the refrigerant in the refrigeration system circulates along the following path: compressor → condenser → pressure-reducing component → evaporator → compressor.

[0004] Specifically, when the refrigerant flows through the compressor, it is compressed by the compressor into a high temperature and high pressure state (liquid or gas-liquid mixed state). When the refrigerant flows through the condenser, the condenser dissipates heat and the temperature is reduced to a low temperature and high pressure state (liquid or gas-liquid mixed state). When the refrigerant flows through the pressure reducing component, it is throttled and reduced to a low temperature and low pressure state (liquid or gas-liquid mixed state) by the pressure reducing component. When the refrigerant flows through the evaporator, it absorbs heat from the external environment through the evaporator and heats up to a high temperature and low pressure state (gaseous state).

[0005] Among them, the aforementioned states of the refrigerant in the compressor, condenser, pressure reducing component, and evaporator, that is, the high temperature, low temperature, high pressure, and low pressure of the refrigerant, are the states of the refrigerant after entering the corresponding components or flowing out of the corresponding components compared to the states before it flows into the corresponding components.

[0006] When the air conditioner is heating, the heat exchanger in the outdoor unit is used as an evaporator, and the heat exchanger in the indoor unit is used as a condenser. When the air conditioner is cooling, the heat exchanger in the outdoor unit is used as a condenser, and the heat exchanger in the indoor unit is used as an evaporator.

[0007] Although existing indoor units are equipped with filters, some dust, lint and other foreign matter still enter the interior of the indoor unit as the air conditioner is used. In particular, the fan in the indoor unit will continuously cut and squeeze the air on the windward side of the fan blades during the operation of the air conditioner, which can easily accumulate dust. However, existing indoor units can only flush the heat exchanger and fan inside by injecting cleaning liquid through the return air port and air inlet, and the cleaning effect is generally poor, making it difficult to effectively clean the fan, resulting in incomplete fan cleaning. Utility Model Content

[0008] One purpose of the utility model is to solve the problem that the fan in the existing air conditioner indoor unit is difficult to be effectively cleaned.

[0009] One purpose of the utility model is to improve the cleaning effect of a heat exchanger in an indoor unit of an air conditioner.

[0010] To achieve the above-mentioned object, the utility model provides an air conditioner indoor unit in a first aspect, comprising:

[0011] The housing comprises a fixing portion and a disassembly portion detachably connected to the fixing portion;

[0012] A heat exchanger is disposed in the casing;

[0013] The fan is arranged in the casing and is shielded by the disassembly portion, so that the fan is exposed when the disassembly portion is disassembled.

[0014] Optionally, the disassembly portion includes a front side plate of the casing and an air duct structure adapted to the fan, and the front side plate is fixedly connected to or integrally formed with the air duct structure.

[0015] Optionally, a return air port and a supply air port are provided on the front side plate, and the fan is configured to drive air to flow from the return air port to the supply air port via the heat exchanger.

[0016] Optionally, the return air outlet is located at the lower side of the air duct structure; and the supply air outlet is located at the upper side of the air duct structure.

[0017] Optionally, the fan and the air duct structure are both arranged above the heat exchanger.

[0018] Optionally, the air conditioner indoor unit further includes a water receiving pan arranged in the casing, and the water receiving pan is located below the heat exchanger.

[0019] Optionally, the fan is detachably connected to the fixing portion, so that the fan can be removed from the fixing portion after the removal portion is removed.

[0020] Optionally, the air-conditioning indoor unit further comprises a motor mounted on the fixing portion, and the motor is detachably connected to the fan drive.

[0021] Optionally, the air-conditioning indoor unit is an embedded air-conditioning indoor unit.

[0022] The utility model provides an air conditioner in a second aspect, comprising an air conditioner outdoor unit and an air conditioner indoor unit as described in any one of the first aspects.

[0023] Based on the foregoing description, it can be understood by those skilled in the art that in the aforementioned technical solution of the utility model, by making the housing include a fixed portion and a disassembly portion detachably connected to the fixed portion, and making the fan shielded by the disassembly portion, the fan is exposed when the disassembly portion is removed, so that the user can visually observe the fan and clean the fan. For example, a cleaning liquid can be sprayed on the fan. Therefore, the utility model facilitates the user to clean the fan, so that the fan can be effectively cleaned.

[0024] Furthermore, by making the disassembly portion include the front side plate of the casing and the air duct structure adapted to the fan, most of the fan can be exposed after the disassembly portion of the air conditioner indoor unit is disassembled, so as to facilitate the user to clean the fan.

[0025] Furthermore, by arranging the return air outlet and the air supply outlet on the front side plate, the air conditioner indoor unit of the utility model can be embedded in a wall or other closed area. For example, the top side of the air conditioner indoor unit of the utility model can abut against the ceiling of the room.

[0026] Furthermore, by locating the return air outlet at the lower side of the duct structure and the supply air outlet at the upper side of the duct structure, the air-conditioned wind blown out from the supply air outlet will not be blocked by the return air flow and can be blown farther. Especially when the air-conditioned indoor unit is cooling, the cold wind blowing from a higher position to a distant place can more easily lower the temperature of the room.

[0027] Furthermore, by arranging both the fan and the air duct structure above the heat exchanger, the fan will not be blocked by the heat exchanger after the disassembly part is disassembled, which makes it convenient for users to clean the fan.

[0028] Furthermore, by making the fan and the fixing part detachably connected, the fan can be removed from the fixing part after the removal part is removed, so that the user can clean the fan after removing it. This not only makes it convenient for the user to clean the fan, but also makes the area of ​​the heat exchanger in the air conditioner indoor unit more exposed, making it convenient for the user to observe the heat exchanger and to clean the heat exchanger in all aspects. Therefore, the utility model also improves the cleaning effect of the heat exchanger in the air conditioner indoor unit.

[0029] Furthermore, by making the motor mounted on the fixing portion detachably connected to the fan drive, the motor will not be removed along with the fan, thereby reducing the weight of the fan when it is removed, thereby facilitating the user's removal and installation of the fan.

[0030] Other beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the improved purposes, features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the utility model, some embodiments of the utility model will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same figure number indicates the same or similar parts or components in different drawings; the drawings of the utility model are not necessarily drawn to scale. In the drawings:

[0032] Figure 1 is a cross-sectional schematic diagram of an air conditioner indoor unit in some embodiments of the utility model;

[0033] Figure 2 It is a structural exploded view of the indoor unit of the air conditioner in some embodiments of the utility model (the bottom side plate of the casing and the front part of the heat exchanger are hidden);

[0034] Figure 3 It is an axonometric view of an indoor unit of an air conditioner in some embodiments of the utility model (the disassembled portion of the casing, the bottom side plate and the front portion of the heat exchanger are hidden);

[0035] Figure 4 It is a schematic diagram of the connection structure between the fan and the motor in some embodiments of the utility model;

[0036] Figure 5 It is a schematic diagram of the structure of air conditioners in other embodiments of the utility model. DETAILED DESCRIPTION

[0037] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and the embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0038] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] Furthermore, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. For example, the terms "install", "connect", "connect" and "fix", unless otherwise specifically described, can specifically be any feasible connection form such as bolt connection, screw connection, welding, plug-in, riveting, melting, and clamping.

[0040] In addition, it should be noted that in the description of the present utility model, the terms "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" of a certain target object (such as an evaporator, air, condenser, etc.), the lower the "heat" it has, and the lower the "cold" it has, the higher the "heat" it has. A certain target object will release "heat" while absorbing "cold", and will absorb "heat" while releasing "cold". A certain target object stores "cold" or "heat" in order to keep the current temperature of the target object. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target object (such as an evaporator) will absorb heat while cooling.

[0041] Further, in the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. That is, in the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of the present invention have the same meanings as commonly understood by ordinary technicians in the technical field to which the present application belongs.

[0043] In the description of the utility model, the description with reference to the terms "a utility model", "some utility models", "illustrative utility models", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the utility model or example are included in at least one utility model or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same utility model or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more utility models or examples in a suitable manner.

[0044] like Figure 1 As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 includes a casing 110 , a heat exchanger 130 and a fan 140 .

[0045] The housing 110 includes a fixing portion 111 and a detachable portion 112 detachably connected to the fixing portion 111 .

[0046] The heat exchanger 130 is disposed in the casing 110 .

[0047] The fan 140 is disposed in the housing 110 and is shielded by the disassembly portion 112 , so that the fan 140 is exposed when the disassembly portion 112 is removed.

[0048] Those skilled in the art can understand that, in some embodiments of the present invention, by making the housing 110 include a fixing portion 111 and a disassembly portion 112 detachably connected to the fixing portion 111, and making the fan 140 blocked by the disassembly portion 112, the fan 140 is exposed when the disassembly portion 112 is removed, so that the user can visually observe the fan 140 and clean the fan 140. For example, a cleaning liquid can be sprayed on the fan 140. Therefore, the present invention facilitates the user to clean the fan 140, so that the fan 140 can be effectively cleaned.

[0049] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the disassembly portion 112 includes a front side plate 1121 of the housing 110 and an air duct structure 1122 adapted to the fan 140 , and the front side plate 1121 and the air duct structure 1122 are fixedly connected or integrally formed.

[0050] The air duct structure 1122 may be as follows: Figure 1 and Figure 2 What is shown is the volute tongue of the fan 140, and it can also be any other feasible air duct structure 1122, such as a volute tongue and a volute casing, a partial volute casing, a partial volute tongue, etc.

[0051] In example 1, the front side plate 1121 and the air duct structure 1122 of the housing 110 are formed into a whole by welding, injection molding or other processes.

[0052] In example two, a snap is provided on one of the front side panel 1121 of the housing 110 and the air duct structure 1122, and a snap-fit ​​structure is provided on the other, so that the front side panel 1121 of the housing 110 and the air duct structure 1122 are snapped together through the snap and the snap-fit ​​structure.

[0053] Example three, one of the front side panel 1121 of the casing 110 and the air duct structure 1122 is provided with a through hole, and the other is provided with a threaded hole. The screws pass through the through holes and are tightened together with the threaded holes, thereby fixing the front side panel 1121 of the casing 110 and the air duct structure 1122 together.

[0054] Those skilled in the art will appreciate that, in some embodiments of the present invention, by making the disassembly portion 112 include a front side panel 1121 of the casing 110 and an air duct structure 1122 adapted to the fan 140, the air-conditioning indoor unit 100 can expose most of the fan 140 after the disassembly portion 112 is disassembled, so as to facilitate the user to clean the fan 140.

[0055] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, a return air port 11211 and an air supply port 11212 are provided on the front side plate 1121 , and the fan 140 is configured to drive air from the return air port 11211 to the air supply port 11212 via the heat exchanger 130 .

[0056] It can be understood by those skilled in the art that, in some embodiments of the present invention, by providing the return air outlet 11211 and the air supply outlet 11212 on the front side plate 1121, the air conditioner indoor unit 100 of the present invention can be embedded in other closed areas such as walls, cabinets, or areas with smaller spaces. For example, the top side of the air conditioner indoor unit 100 of the present invention can abut against the ceiling of the room. In particular, the return air outlet 11211 of the air conditioner indoor unit 100 of the present invention will not be blocked by the wall or cabinet.

[0057] Continue reading Figure 1 and Figure 2 In some embodiments of the present invention, the return air outlet 11211 is located at the lower side of the air duct structure 1122 , and the supply air outlet 11212 is located at the upper side of the air duct structure 1122 .

[0058] Those skilled in the art can understand that, in some embodiments of the present invention, by locating the return air port 11211 at the lower side of the air duct structure 1122 and locating the air supply port 11212 at the upper side of the air duct structure 1122, the air conditioning wind blown out from the air supply port 11212 will not be blocked by the return air flow and can be blown farther. In particular, when the air conditioning indoor unit 100 is cooling, the cold wind blowing from a higher position to a distant place can more easily lower the temperature of the room.

[0059] In addition, in other embodiments of the present invention, those skilled in the art may also locate the return air outlet 11211 on the upper side of the air duct structure 1122 and the supply air outlet 11212 on the lower side of the air duct structure 1122 as needed.

[0060] Further, in some embodiments of the present invention, in the vertical direction, the ratio of the height of the return air outlet 11211 to the height of the air supply outlet 11212 is selected from any value between 2 and 5. For example, the ratio can be 2, 2.5, 3, 3.1, 3.3, 4, 4.5, 5, etc.

[0061] It will be understood by those skilled in the art that, in the vertical direction, by selecting the ratio of the height of the return air outlet 11211 to the height of the supply air outlet 11212 from any value between 2 and 5, the return air resistance of the air-conditioning indoor unit 100 is reduced, the wind noise during the operation of the air-conditioning indoor unit 100 is reduced, and the air volume of the air-conditioning indoor unit 100 is ensured.

[0062] like Figure 1 As shown, in some embodiments of the present invention, the air-conditioning indoor unit 100 further includes an air guide plate 120 , which is installed at the air supply outlet 11212 to control the blowing direction of the air blown out from the air supply outlet 11212 .

[0063] like Figures 1 to 4 As shown, in some embodiments of the present invention, the fan 140 is a cross-flow fan 140 .

[0064] In addition, in other embodiments of the present invention, those skilled in the art may also configure the fan 140 to any feasible form such as an axial flow fan, a centrifugal fan, etc. as needed.

[0065] like Figure 1As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 further includes a partition 150 disposed in the housing 110, and the partition 150 extends from the return air port 11211 to the heat exchanger 130, so that the air on the top side of the partition 150 flows to the portion of the heat exchanger 130 located on the top side of the fan 140. In other words, the partition 150 divides the housing 110 into two return air passages, one return air passage leads to the front of the heat exchanger 130, and the other return air passage leads to the rear of the heat exchanger 130.

[0066] Those skilled in the art will appreciate that by extending the partition 150 from the return air port 11211 toward the heat exchanger 130, the air on the top side of the partition 150 flows toward the portion of the heat exchanger 130 located on the top side of the fan 140, and thus air flows through each portion of the heat exchanger 130, thereby ensuring the working efficiency of the heat exchanger 130. In addition, ice formation at the rear of the heat exchanger 130 due to insufficient air volume is avoided.

[0067] Furthermore, the ratio of the portion of the return air outlet 11211 located above the partition 150 to the portion located below the partition 150 is selected from any value between 1 / 5 and 1 / 3.

[0068] The ratio may be any feasible value such as 1 / 5, 1 / 4, 1 / 3, etc.

[0069] Those skilled in the art will appreciate that by selecting the ratio of the portion of the return air outlet 11211 located above the partition 150 to the portion located below the partition 150 as any value between 1 / 5 and 1 / 3, sufficient air can flow through the top and rear of the heat exchanger 130, thereby making the air flow rate through each portion of the heat exchanger 130 substantially consistent, thereby improving the working efficiency of the heat exchanger 130.

[0070] Furthermore, the partition 150 may be fixedly connected to the housing 110 or may be integrally formed therewith.

[0071] In example 1, the partition plate 150 and the front side plate 1121 are made integrally.

[0072] Example 2: A plug-in structure is provided on the partition 150, and a plug-in matching structure is provided on the front side plate 1121. The partition 150 is plugged together with the front side plate 1121 through the plug-in structure and the plug-in matching structure.

[0073] Example three: A vertical mounting plate is provided on the partition 150 , a through hole is provided on the mounting plate, and a threaded hole is provided on the front side plate 1121 . Screws pass through the through holes and are tightened together with the threaded holes, thereby fixing the partition 150 to the front side plate 1121 .

[0074] Continue reading Figure 1 and Figure 2In some embodiments of the present invention, the fan 140 and the air duct structure 1122 are both disposed above the heat exchanger 130 .

[0075] It should be noted that Figure 2 and Figure 3 The reason why the fan 140 is exposed by the area below the air duct structure 1122 is that Figure 2 and Figure 3 Part of the structure of the heat exchanger 130 is hidden in FIG. Figure 1 The upper left section of the middle heat exchanger 130 corresponds.

[0076] Those skilled in the art will appreciate that, in some embodiments of the present invention, by arranging both the fan 140 and the air duct structure 1122 above the heat exchanger 130, the fan 140 will not be blocked by the heat exchanger 130 after the disassembly portion 112 is disassembled, which facilitates the user to clean the fan 140. In addition, the condensed water formed when the heat exchanger 130 is used as an evaporator will not drip onto the fan 140.

[0077] like Figure 1 As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 further includes a water receiving tray 160 disposed in the casing 110 , and the water receiving tray 160 is located below the heat exchanger 130 .

[0078] Those skilled in the art will appreciate that by disposing the water receiving pan 160 below the heat exchanger 130 , the condensed water flowing down from the heat exchanger 130 can be received by the water receiving pan 160 .

[0079] like Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 further includes an electronic control unit 170 disposed in the casing 110 and located at the return air outlet 11211 .

[0080] Those skilled in the art can understand that, by arranging the electric control unit 170 at the return air port 11211, the air entering the air conditioner indoor unit 100 first flows through the electric control unit 170 and then flows to the heat exchanger 130, thereby avoiding the heat exchanger 130 from cooling the electric control unit 170 when it is used as an evaporator. Therefore, the temperature of the electric control unit 170 of the air conditioner indoor unit 100 in the utility model can be substantially consistent with the temperature of the external environment, and the air conditioner indoor unit 100 in the prior art will not have its temperature lowered due to the cooling of the electric control unit 170 therein by the evaporator, and the water in the air will not be analyzed to form condensation.

[0081] Furthermore, the electronic control unit 170 may include electronic components such as circuit boards, capacitors, resistors, etc. The electronic control unit 170 may also have a housing to enclose the electronic components, thereby preventing condensed water on the heat exchanger 130 from flowing into the interior of the electronic control unit 170 and causing a short circuit.

[0082] Furthermore, in some embodiments of the present invention, the fan 140 is detachably connected to the fixing portion 111 , so that the fan 140 can be detached from the fixing portion 111 after the detachable portion 112 is detached.

[0083] Those skilled in the art can understand that, by making the fan 140 detachably connected to the fixing portion 111, the fan 140 can be removed from the fixing portion 111 after the removal portion 112 is removed, so that the user can remove the fan 140 and then clean the fan 140. Not only is it convenient for the user to clean the fan 140, but also more areas of the heat exchanger 130 in the air-conditioning indoor unit 100 are exposed, which is convenient for the user to observe the heat exchanger 130 and to clean the heat exchanger 130 in all aspects. Therefore, the utility model also improves the cleaning effect of the heat exchanger 130 in the air-conditioning indoor unit 100.

[0084] like Figure 4 As shown, the air-conditioning indoor unit 100 further includes a motor 180 mounted on the fixing portion 111 , and the motor 180 is drivingly connected to the fan 140 in a detachable manner.

[0085] It will be understood by those skilled in the art that by making the motor 180 mounted on the fixing portion 111 drive-connected to the fan 140 in a detachable manner, the motor 180 will not be removed along with the fan 140, thereby reducing the weight of the fan 140 when it is disassembled, thereby facilitating the user's disassembly and installation of the fan 140.

[0086] Continue reading Figure 4 In some embodiments of the present invention, the two axial ends of the fan 140 respectively have a rotating shaft, and the fixing portion 111 is provided with a rotating shaft mounting hole 1111, so that a rotating shaft of the fan 140 can be embedded in the rotating shaft mounting hole 1111, so that the fan 140 and the fixing portion 111 are rotatably connected together.

[0087] Continue reading Figure 4 The rotating shaft of the motor 180 is connected to or provided with a special-shaped hole column 181, and a special-shaped hole is provided in the special-shaped hole column 181. The rotating shaft of the fan 140 and the motor 180 is a special-shaped column whose cross section is adapted to the special-shaped hole, so that after the rotating shaft of the fan 140 is inserted into the special-shaped hole, it can be fixedly connected with the rotating shaft of the motor 180 in the circumferential direction, so that the motor 180 drives the fan 140 to rotate.

[0088] Furthermore, in the assembled state, the fan 140 can move axially so that the rotating shaft of the special-shaped column of the fan 140 can be inserted into or pulled out of the special-shaped hole column 181, thereby installing the fan 140 on the air-conditioning indoor unit 100, or removing the fan 140 from the air-conditioning indoor unit 100.

[0089] Furthermore, in order to prevent the fan 140 from shaking or being driven away from the motor 180 during operation, a spring may be arranged in the shaft mounting hole 1111, with one end of the spring connected to the fixing portion 111 and the other end of the spring connected to the shaft of the fan 140, so that the spring gives the fan 140 a force directed toward the motor 180.

[0090] In some embodiments of the present invention, the air-conditioning indoor unit 100 may be a built-in air-conditioning indoor unit.

[0091] In addition, in other embodiments of the present invention, those skilled in the art may also configure the air-conditioning indoor unit 100 of the present invention to any other feasible form, such as a common indoor unit, a cabinet unit, a central air conditioner, etc., as needed.

[0092] like Figure 5 As shown, in other embodiments of the present invention, the present invention further provides an air conditioner 001 including an air conditioner outdoor unit 200 and an air conditioner indoor unit 100 described in any of the above embodiments.

[0093] In other embodiments of the present invention, when the air conditioner 001 is cooling, the air conditioner outdoor unit 200 releases heat, and the air conditioner indoor unit 100 absorbs heat to cool the room.

[0094] When the air conditioner 001 is heating, the air conditioner outdoor unit 200 absorbs heat, and the air conditioner indoor unit 100 releases heat to heat the room.

[0095] The air conditioner 001 generally needs to use its refrigeration system to complete cooling or heating.

[0096] The refrigeration system includes a compressor, a condenser, a pressure reducing component (an expansion valve or a capillary tube) and an evaporator which are connected end to end in sequence.

[0097] Among them, the compressor and the pressure reducing member are generally provided in the air conditioner outdoor unit 200 .

[0098] Furthermore, a heat exchanger 130 is disposed in the air-conditioning outdoor unit 200 and the air-conditioning indoor unit 100 , respectively.

[0099] When the air conditioner 001 is working, the refrigerant in the refrigeration system circulates along the following path: compressor→condenser→pressure reducing component→evaporator→compressor.

[0100] Specifically, when the refrigerant flows through the compressor, it is compressed into a high-temperature and high-pressure state (liquid or gas-liquid mixed state). When the refrigerant flows through the condenser, it dissipates heat through the condenser and cools down to a low-temperature and high-pressure state (liquid or gas-liquid mixed state).

[0101] When the refrigerant flows through the pressure reducing component, it is throttled and reduced in pressure to a low temperature and low pressure state (liquid state or gas-liquid mixed state). When the refrigerant flows through the evaporator, it absorbs heat from the external environment through the evaporator and heats up to a high temperature and low pressure state (gaseous state). Among them, the aforementioned state of the refrigerant in the compressor, condenser, pressure reducing component, and evaporator, that is, the high temperature, low temperature, high pressure, and low pressure of the refrigerant, is the state of the refrigerant after entering the corresponding component or flowing out of the corresponding component compared to the state before it flows into the corresponding component.

[0102] When the air conditioner 001 is heating, the heat exchanger 130 in the air conditioner outdoor unit 200 is used as an evaporator, and the heat exchanger 130 in the air conditioner indoor unit 100 is used as a condenser.

[0103] When the air conditioner 001 is cooling, the heat exchanger 130 in the air conditioner outdoor unit 200 is used as a condenser, and the heat exchanger 130 in the air conditioner indoor unit 100 is used as an evaporator.

[0104] It should be noted that the present invention only describes the main components of the refrigeration system and the general refrigerant flow path. In actual product applications, the refrigeration system may also have at least one series and / or parallel branch.

[0105] So far, the technical solution of the utility model has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the utility model is not limited to these specific embodiments. Without departing from the technical principle of the utility model, those skilled in the art can split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the utility model will fall within the protection scope of the utility model.

[0106] Finally, it should be noted that in the present invention, the term "communication" means fluid communication, so as to allow fluid (such as air, liquid) to flow between two connected objects. And the "communication" can be to allow the fluid to flow between the two connected objects without leakage, or to allow the fluid to flow between the two connected objects with a little leakage.

Claims

1. An air conditioner indoor unit, characterized in that: include: The housing comprises a fixing portion and a disassembly portion detachably connected to the fixing portion; A heat exchanger is disposed in the casing; The fan is arranged in the casing and is shielded by the disassembly portion, so that the fan is exposed when the disassembly portion is disassembled.

2. The air conditioner indoor unit according to claim 1, characterized in that: The disassembly portion includes a front side plate of the housing and an air duct structure adapted to the fan, and the front side plate is fixedly connected to the air duct structure or is integrally formed.

3. The air conditioner indoor unit according to claim 2, characterized in that: The front side plate is provided with a return air port and an air supply port, and the fan is configured to drive air to flow from the return air port to the air supply port via the heat exchanger.

4. The air conditioner indoor unit according to claim 3, characterized in that: The return air outlet is located at the lower side of the air duct structure; The air supply port is located on the upper side of the air duct structure.

5. The air conditioner indoor unit according to claim 2, characterized in that: The fan and the air duct structure are both arranged above the heat exchanger.

6. The air conditioner indoor unit according to claim 5, characterized in that: The air conditioner indoor unit further comprises a water receiving pan arranged in the casing, and the water receiving pan is located below the heat exchanger.

7. The air conditioner indoor unit according to any one of claims 1 to 6, characterized in that: The fan is detachably connected to the fixing portion, so that the fan can be removed from the fixing portion after the removal portion is removed.

8. The air conditioner indoor unit according to claim 7, characterized in that: The air conditioner indoor unit further comprises a motor mounted on the fixing portion, and the motor is detachably drivingly connected to the fan.

9. The air conditioner indoor unit according to any one of claims 1 to 6, characterized in that: The air-conditioning indoor unit is a built-in air-conditioning indoor unit.

10. An air conditioner, characterized in that: The invention comprises an air-conditioning outdoor unit and the air-conditioning indoor unit according to any one of claims 1 to 9.

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