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 utility model aims to solve the problem that the aperture of a micropore for realizing windless air supply in the existing air conditioner indoor unit cannot be adjusted. Therefore, the air conditioner indoor unit comprises a machine shell with an air return opening and an air supply opening, an air outlet plate arranged at the air supply opening and a stretching device used for stretching the air outlet plate. A plurality of air outlet holes are formed in the air outlet plate, and the air outlet plate is configured to be capable of being stretched and tightened, so that the hole diameters of the air outlet holes are increased when the air outlet plate is stretched. According to the air conditioner indoor unit, the hole diameter of the air outlet hole can be automatically adjusted through the stretching device.

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] An air conditioner is a cooling and heating device, which generally includes an indoor unit and an outdoor unit. An air conditioner generally uses the indoor unit for cooling and heating. Specifically, when the air conditioner is running in the cold winter, the indoor unit of the air conditioner heats up the room; when the air conditioner is running in the hot summer, the indoor unit of the air conditioner cools down the room. Therefore, air conditioners can provide users with a comfortable living and working environment. However, when the cold or hot air blown by the indoor unit of the air conditioner blows directly to the user, it will not only cause discomfort to the user, but also easily cause the user to have symptoms such as colds, fevers, and headaches.

[0003] At present, some indoor air conditioners have a plurality of micro holes densely distributed on their air guide plates, or components densely distributed with micro holes are arranged at their air outlets, so that the air conditioning air is blown out from the plurality of micro holes, thereby realizing windless air supply of the indoor air conditioner and avoiding direct blowing on the user.

[0004] However, since the aperture of the above-mentioned micropores cannot be adjusted, the air supply capacity of the air conditioner indoor unit can only be improved by increasing the speed of the fan. However, when the speed of the fan is increased, the flow rate of the air in the same micropore will become faster accordingly. In this way, not only will the air conditioner indoor unit generate a large wind noise, even whistling or whistling; but also the wind resistance of the components with micropores to the air conditioning wind will increase, affecting the working efficiency of the air conditioner indoor unit. Utility Model Content

[0005] One purpose of the utility model is to solve the problem that the diameter of micro-holes used for realizing windless air supply in the existing air-conditioning indoor unit cannot be adjusted.

[0006] To achieve the above-mentioned object, the utility model provides an air conditioner indoor unit in a first aspect, comprising:

[0007] A housing, including a return air vent and a supply air vent;

[0008] An air outlet plate is arranged at the air outlet, a plurality of air outlet holes are arranged on the air outlet plate, and the air outlet plate is configured to be stretched and tightened so that the apertures of the air outlet holes become larger when the air outlet plate is stretched;

[0009] A stretching device is used for stretching the air outlet plate.

[0010] Optionally, one end of the air outlet plate is fixedly connected to the casing, and the other end of the air outlet plate is connected to the stretching device.

[0011] Optionally, the stretching device includes a stretching motor fixedly connected to the casing and a reel drivingly connected to the stretching motor, wherein the reel is connected to the other end of the air outlet plate to wind up or release the air outlet plate when the stretching motor rotates.

[0012] Optionally, one end of the air outlet plate is located on one side in the length direction of the air supply port, and the other end of the air outlet plate and the stretching device are located on the other side in the length direction of the air supply port.

[0013] Optionally, the air outlet plate is configured to shield the air supply port.

[0014] Optionally, the casing includes a rear casing and a front casing, a heat exchanger and a fan are arranged in the rear casing; the return air port and the supply air port are formed on the front casing; the air outlet plate and the stretching device are arranged in the rear casing.

[0015] Optionally, the air conditioner indoor unit further comprises a front panel mounted on the front shell, and the front panel is used for opening and shielding the return air outlet.

[0016] Optionally, the return air outlet is arranged on the upper side of the air supply outlet; the front panel is rotatably connected to the front shell, and the rotation axis of the front panel is located on the bottom side of the front panel; and / or, the air conditioner indoor unit is an embedded air conditioner.

[0017] Optionally, the air conditioner indoor unit further comprises a driving device mounted on the front shell, wherein the driving device is configured to open and / or close the front panel.

[0018] 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.

[0019] Based on the foregoing description, those skilled in the art can understand that, in the aforementioned technical solution of the present invention, by configuring the air outlet plate with multiple air outlets to be able to be stretched and tightened, the aperture of the air outlet hole becomes larger when the air outlet plate is stretched. Therefore, the aperture of the air outlet hole of the air conditioner indoor unit of the present invention for realizing its windless air supply is variable, so that it becomes larger when a large air volume is required, and becomes smaller when a small air volume is required, thereby reducing the wind resistance of the air outlet plate to the air conditioning wind, and reducing the wind noise of the air conditioner indoor unit. By configuring a stretching device for stretching the air outlet plate for the air conditioner indoor unit, the air conditioner indoor unit can realize automatic adjustment of the aperture of the air outlet hole through the stretching device.

[0020] Furthermore, by fixing one end of the air outlet plate to the casing and connecting the other end of the air outlet plate to the stretching device, the air conditioner indoor unit can adjust the apertures of all air outlet holes on the air outlet plate by only one stretching device.

[0021] Furthermore, by making the stretching device include a stretching motor fixedly connected to the casing and a reel drivingly connected to the stretching motor, the stretching motor can wind up or release the air outlet plate when it rotates, thereby ensuring the flatness of the air outlet plate and the uniformity of the size of each air outlet hole on the air outlet plate.

[0022] Furthermore, by locating one end of the air outlet plate on one side in the length direction of the air supply outlet and locating the other end of the air outlet plate and the stretching device on the other side in the length direction of the air supply outlet, the portion of the air outlet plate used to shield the air supply outlet has a sufficient length, and the aperture of the air outlet holes on the air outlet plate can be uniformly changed under the action of the stretching device, with more aperture states.

[0023] Furthermore, by making the air outlet plate shield the air supply port, the appearance of the air conditioner indoor unit is optimized, and the air conditioning air is blown out from the air outlet holes on the air outlet plate as much as possible, ensuring the breeze effect of the air conditioner indoor unit.

[0024] Furthermore, by configuring the housing to include a rear housing and a front housing, arranging the heat exchanger and the fan in the rear housing, and providing the return air port and the supply air port on the front housing, the installation and maintenance of the air conditioner indoor unit are facilitated. Specifically, when installing the air conditioner indoor unit, the rear housing and the parts inside it can be installed on the wall first, and then the front housing can be installed on the rear housing. When maintaining the air conditioner indoor unit, only the front housing needs to be opened, without disassembling the entire air conditioner indoor unit.

[0025] Furthermore, by setting the return air outlet on the upper side of the supply air outlet, and rotatably connecting the front panel to the front shell, and locating the rotating shaft of the front panel on the bottom side of the front panel, the front panel can be blocked between the return air outlet and the supply air outlet when opened, thereby effectively preventing the return air of the air conditioner indoor unit from being mixed with the cold air / hot air it delivers.

[0026] Furthermore, by configuring a driving device for opening and / or closing the front panel for the air-conditioning indoor unit, the air-conditioning indoor unit can automatically open and close the front panel, which is more intelligent and improves the user experience.

[0027] 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

[0028] 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:

[0029] Figure 1 It is an axonometric view of an indoor unit of an air conditioner in some embodiments of the utility model (the air outlet plate is not stretched);

[0030] Figure 2 yes Figure 1 A schematic cross-sectional view of the indoor unit of the air conditioner along the AA direction;

[0031] Figure 3 It is a schematic diagram of the effect of the stretching device and the air outlet plate in some embodiments of the utility model;

[0032] Figure 4 It is an axonometric view of an indoor unit of an air conditioner in some embodiments of the utility model (the air outlet plate is stretched);

[0033] Figure 5 It is a schematic diagram of the composition of the air conditioner in the utility model. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] In the present invention, the air conditioner indoor unit 100 may be a built-in air conditioner, so that the air conditioner indoor unit 100 is embedded in the cabinet 001 and fixed to the wall 002 (such as Figure 1 and Figure 2 The air conditioner indoor unit 100 may also be a common wall-mounted air conditioner, which is directly fixed to the wall 002. The air conditioner indoor unit 100 may also be any other feasible air conditioner such as a cabinet air conditioner.

[0039] Refer to the following Figures 1 to 4 The air conditioner indoor unit 100 of the present invention is described by taking an embedded air conditioner as an example.

[0040] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 includes a casing 110 , a heat exchanger 121 , an electric control component 122 and a fan 123 .

[0041] The housing 110 has a return air port 1101 and an air supply port 1102 , so that the outside air can enter the inside of the housing 110 from the return air port 1101 , and the air in the housing 110 can flow to the outside again from the air supply port 1102 .

[0042] Furthermore, the return air outlet 1101 can be Figure 1 and Figure 2 As shown, it is arranged on the upper side of the air supply port 1102, but it can also be arranged on the lower side of the air supply port 1102.

[0043] In other embodiments of the present invention, if the air conditioning indoor unit 100 is not an embedded air conditioner, those skilled in the art may also set the return air outlet 1101 on the top, rear, left or right side of the air conditioning indoor unit 100 as needed.

[0044] In some embodiments of the present invention, the heat exchanger 121 is disposed in the housing 110. When the air conditioner indoor unit 100 is cooling, the heat exchanger 121 is used as an evaporator to cool the air in the housing 110. When the air conditioner indoor unit 100 is heating, the heat exchanger 121 is used as a condenser to heat the air in the housing 110.

[0045] In some embodiments of the present invention, the electric control component 122 is used to control the operation of the air-conditioning indoor unit 100 and may include a circuit board.

[0046] In some embodiments of the present invention, the fan 123 is disposed in the housing 110. The fan 123 is used to drive the air in the environment into the housing 110 and make the air flow through the heat exchanger 121 to be cooled or heated. The fan 123 is also used to drive the air in the housing 110 to blow to the outside.

[0047] Continue reading Figure 1 and Figure 2 In some embodiments of the present invention, the housing 110 includes a rear housing 111 and a front housing 112. An opening (not marked in the figure) is arranged at the front side of the rear housing 111, and the front housing 112 is mounted on the rear housing 111 to cover the opening.

[0048] Furthermore, the heat exchanger 121, the electronic control component 122 and the fan 123 are all arranged on the rear shell 111, so that when these components fail, only the front shell 112 needs to be removed from the rear shell 111 for maintenance, and there is no need to remove the air conditioner indoor unit 100 from the wall as a whole, which makes maintenance more convenient.

[0049] In addition, in other embodiments of the present invention, those skilled in the art may also arrange only a portion of the heat exchanger 121 , the electronic control component 122 and the fan 123 on the rear housing 111 as needed.

[0050] Furthermore, in some embodiments of the present invention, the front shell 112 may be detachably connected to the rear shell 111 to facilitate maintenance personnel to disassemble the front shell 112 .

[0051] The disassembly connection enables maintenance personnel to remove the front shell 112 from the rear shell 111 with their hands without the aid of tools. This exposes the components in the air conditioner indoor unit 100, making it easier for maintenance personnel to perform maintenance. After the maintenance is completed, the front shell 112 is installed on the rear shell 111.

[0052] To this end, any feasible connection method such as snap connection, plug-in connection, magnetic connection, etc. can be used between the front shell 112 and the rear shell 111.

[0053] In addition, in other embodiments of the present invention, those skilled in the art may also configure the front shell 112 and the rear shell 111 to be connected in any other feasible manner, such as bolt / screw connection, as required.

[0054] Continue reading Figure 1 and Figure 2 In some embodiments of the present invention, the return air outlet 1101 and the supply air outlet 1102 are both formed on the front shell 112 .

[0055] like Figure 2 As shown, an air duct 1111 is defined on the rear shell 111 , an air inlet 11111 of the air duct 1111 is aligned with the return air outlet 1101 on the front shell 112 , and an air outlet 11112 of the air duct 1111 is aligned with the supply air outlet 1102 on the front shell 112 .

[0056] Continue reading Figure 2 In some embodiments of the present invention, the heat exchanger 121 and the fan 123 are both arranged in the air duct 1111 , and the heat exchanger 121 can be arranged upstream of the fan 123 .

[0057] In some embodiments of the utility model, when the air conditioner indoor unit 100 is working, the fan 123 drives the air in the environment to enter the air duct 1111 through the return air port 1101 on the front shell 112 and the air inlet 11111 of the air duct 1111, and drives the air in the air duct 1111 to flow to the environment again through the air outlet 11112 of the air duct 1111 and the air supply port 1102 on the front shell 112. This reciprocating cycle is carried out to achieve cooling or heating of the environment by the air conditioner indoor unit 100.

[0058] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 further includes a front panel 130 installed on the front shell 112 , and the front panel 130 is used to open and cover the return air outlet 1101 .

[0059] When the front panel 130 opens the return air port 1101, air in the environment can enter the housing 110 from the return air port 1101. When the front panel 130 shields the return air port 1101, dust can be prevented from entering the housing 110.

[0060] Furthermore, the front panel 130 is rotatably connected to the front shell 112, and the rotating shaft of the front panel 130 is located on the bottom side of the front panel 130 so that the front panel 130 is blocked between the return air outlet 1101 and the supply air outlet 1102 when opened, thereby effectively preventing the return air of the air-conditioning indoor unit 100 from being mixed with the cold air / hot air it delivers.

[0061] In addition, in other embodiments of the present invention, those skilled in the art may also dispose the rotation axis of the front panel 130 on the top side of the front panel 130 as needed.

[0062] Continue reading Figure 1 and Figure 2 In some embodiments of the present invention, the air conditioner indoor unit 100 may further include a driving device 140 mounted on the front shell 112 , and the driving device 140 is configured to open and / or close the front panel 130 .

[0063] Furthermore, the driving device 140 includes a driving motor 141 , a driving connecting rod 142 and a driven connecting rod 143 .

[0064] The driving motor 141 is mounted on the rear housing 111 or the front housing 112. For example, the housing of the driving motor 141 is fixedly connected to the rear housing 111.

[0065] The driving connecting rod 142 is drivingly connected to the driving motor 141 through one end thereof. The driving connecting rod 142 is rotationally connected to one end of the driven connecting rod 143 through the other end thereof, and the other end of the driven connecting rod 143 is rotationally connected to the front panel 130 .

[0066] Furthermore, one end of the driving connecting rod 142 can be directly coaxially fixedly connected to the rotating shaft of the driving motor 141, and one end of the driving connecting rod 142 can also be driven and connected to the rotating shaft of the driving motor 141 through a reducer.

[0067] In addition, those skilled in the art may also configure the driving device 140 to any other feasible structure as needed, such as a combination of an electric push rod, a motor and a gear pair.

[0068] Exemplarily, the driving device 140 includes a driving motor 141 fixedly connected to the rear housing 111, a housing of the driving motor 141 fixedly connected to the rear housing 111, and a gear coaxially fixedly connected to the rotating shaft of the driving motor 141. The front panel 130 is also provided with a gear at its rotating shaft, and the gear meshes with the gear on the driving motor 141. The driving motor 141 opens the front panel 130 when it rotates forward, and closes the front panel 130 when it rotates reversely.

[0069] In addition, in other embodiments of the utility model, those skilled in the art may also omit the provision of the driving device 140 as needed, and provide a structure on the front panel 130 for the user to manually open and close, so that the user can open and close the front panel 130 through objects such as a clothesline.

[0070] like Figures 1 to 3 As shown, in some embodiments of the present invention, the air conditioner indoor unit 100 further includes an air outlet plate 150 and a stretching device 160 .

[0071] The air outlet plate 150 is disposed at the air outlet 1102 , and a plurality of air outlet holes 151 are disposed on the air outlet plate 150 . The air outlet plate 150 is configured to be stretched and tightened so that the aperture of the air outlet hole 151 becomes larger when the air outlet plate 150 is stretched.

[0072] In some embodiments of the present invention, the air outlet plate 150 can be made of any feasible material, such as rubber, silicone, elastic plastic, etc.

[0073] The stretching device 160 is used to stretch the air outlet plate 150 .

[0074] It is understood by those skilled in the art that by configuring the air outlet plate 150 having a plurality of air outlets 11112 to be stretched and tightened, the aperture of the air outlet hole 151 becomes larger when the air outlet plate 150 is stretched. Therefore, the aperture of the air outlet hole 151 used to realize the windless air supply of the air conditioner indoor unit 100 of the present invention is variable, so that it becomes larger when a large air volume is required, and becomes smaller when a small air volume is required, thereby reducing the wind resistance of the air outlet plate 150 to the air conditioning wind and reducing the wind noise of the air conditioner indoor unit 100. By configuring the air conditioner indoor unit 100 with a stretching device 160 for stretching the air outlet plate 150, the air conditioner indoor unit 100 can realize automatic adjustment of the aperture of the air outlet hole 151 through the stretching device 160.

[0075] Furthermore, although not explicitly shown in the figures, in some embodiments of the present invention, one end of the air outlet plate 150 is fixedly connected to the casing 110, and the other end of the air outlet plate 150 is connected to the stretching device 160, so that the air-conditioning indoor unit 100 can adjust the aperture of all air outlet holes 151 on the air outlet plate 150 by only using one stretching device 160.

[0076] like Figure 3 As shown, in some embodiments of the present invention, the stretching device 160 includes a stretching motor 161 fixedly connected to the housing 110 and a reel 162 drivingly connected to the stretching motor 161. The reel 162 is connected to the other end of the air outlet plate 150 to wind or release the air outlet plate 150 when the stretching motor 161 rotates.

[0077] Specifically, when the stretching motor 161 rotates forward, the reel 162 winds up the air outlet plate 150, so that the portion of the air outlet plate 150 corresponding to the air outlet 11112 is stretched, thereby increasing the aperture of the air outlet hole 151 (eg, Figure 4 When the stretching motor 161 is reversed, the reel 162 releases the air outlet plate 150, causing the portion of the air outlet plate 150 corresponding to the air outlet 11112 to retract, thereby reducing the aperture of the air outlet hole 151 (as shown in FIG. Figure 1 shown).

[0078] It should be noted that in the description of the present invention, the “aperture” of the air outlet 151 may refer to the diameter of the maximum circumscribed circle of the cross section of the air outlet 151 , or the average diameter of the air outlet 151 , or the area of ​​the cross section of the air outlet 151 .

[0079] like Figure 1 and Figure 4 As shown, in some embodiments of the present invention, one end of the air outlet plate 150 is located on one side of the air outlet 1102 in the length direction, and the other end of the air outlet plate 150 and the stretching device 160 are located on the other side of the air outlet 1102 in the length direction.

[0080] Those skilled in the art can understand that this arrangement of the air outlet plate 150 can ensure that the portion of the air outlet plate 150 used to shield the air supply port 1102 has a sufficient length, thereby enabling the aperture of the air outlet holes 151 on the air outlet plate 150 to change evenly under the action of the stretching device 160 and have more aperture states.

[0081] Continue reading Figure 1 and Figure 4 In some embodiments of the utility model, the air outlet plate 150 is configured to shield the air supply port 1102, which not only optimizes the appearance of the air-conditioning indoor unit 100, but also allows the air-conditioning air to be blown out from the air outlet holes 151 on the air outlet plate 150 as much as possible, ensuring the breeze effect of the air-conditioning indoor unit 100.

[0082] like Figure 2 As shown, in some embodiments of the present invention, the air outlet plate 150 and the stretching device 160 may be arranged in the rear shell 111 , and the air supply port 1102 is aligned with the air outlet plate 150 .

[0083] It is understandable to those skilled in the art that by arranging the air outlet plate 150 and the stretching device 160 in the rear shell 111 , the weight of the front shell 112 is reduced, and the disassembly and installation of the front shell 112 is facilitated.

[0084] In addition, in other embodiments of the present invention, if the air-conditioning indoor unit 100 is a traditional wall-mounted air conditioner, it may only include the air outlet plate 150 and the stretching device 160 described in any of the foregoing embodiments, without having to have the rear shell 111, front shell 112, front panel 130, driving device 140 and other components described above that do not exist in non-traditional wall-mounted air conditioners.

[0085] In addition, the utility model also provides an air conditioner 003.

[0086] like Figure 5 As shown, the air conditioner 003 includes the air conditioner indoor unit 100 and the air conditioner outdoor unit 200 described in any of the above embodiments.

[0087] When the air conditioner 003 is cooling, the air conditioner outdoor unit 200 releases heat, and the air conditioner indoor unit 100 absorbs heat to cool the room.

[0088] When the air conditioner 003 is heating, the air conditioner outdoor unit 200 absorbs heat, and the air conditioner indoor unit 100 releases heat to heat the room.

[0089] The air conditioner 003 generally needs to use its refrigeration system to complete cooling or heating.

[0090] 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.

[0091] Among them, the compressor and the pressure reducing member are generally provided in the air conditioner outdoor unit 200 .

[0092] Furthermore, a heat exchanger 121 is disposed in the air-conditioning outdoor unit 200 and the air-conditioning indoor unit 100 , respectively.

[0093] When the air conditioner 003 is working, the refrigerant in the refrigeration system circulates along the following path: compressor→condenser→pressure reducing component→evaporator→compressor.

[0094] When the refrigerant flows through the compressor, it is compressed into a high-temperature and high-pressure state (liquid or gas-liquid mixed state).

[0095] 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).

[0096] 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).

[0097] 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).

[0098] 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.

[0099] When the air conditioner 003 is heating, the heat exchanger 121 in the air conditioner outdoor unit 200 is used as an evaporator, and the heat exchanger 121 in the air conditioner indoor unit 100 is used as a condenser.

[0100] When the air conditioner 003 is cooling, the heat exchanger 121 in the air conditioner outdoor unit 200 is used as a condenser, and the heat exchanger 121 in the air conditioner indoor unit 100 is used as an evaporator.

[0101] 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.

[0102] 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.

[0103] 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: A housing, including a return air vent and a supply air vent; An air outlet plate is arranged at the air outlet, a plurality of air outlet holes are arranged on the air outlet plate, and the air outlet plate is configured to be stretched and tightened so that the apertures of the air outlet holes become larger when the air outlet plate is stretched; A stretching device is used for stretching the air outlet plate.

2. The air conditioner indoor unit according to claim 1, characterized in that: One end of the air outlet plate is fixedly connected to the housing, and the other end of the air outlet plate is connected to the stretching device.

3. The air conditioner indoor unit according to claim 2, characterized in that: The stretching device comprises a stretching motor fixedly connected to the housing and a reel drivingly connected to the stretching motor. The reel is connected to the other end of the air outlet plate to wind up or release the air outlet plate when the stretching motor rotates.

4. The air conditioner indoor unit according to claim 2 or 3, characterized in that: One end of the air outlet plate is located on one side in the length direction of the air supply port, and the other end of the air outlet plate and the stretching device are located on the other side in the length direction of the air supply port.

5. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The air outlet plate is configured to shield the air supply port.

6. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The housing comprises a rear housing and a front housing. A heat exchanger and a fan are arranged in the rear shell; The front shell is formed with the return air port and the supply air port; The air outlet plate and the stretching device are arranged in the rear shell.

7. The air conditioner indoor unit according to claim 6, characterized in that: The air conditioner indoor unit further comprises a front panel mounted on the front shell, and the front panel is used for opening and shielding the return air outlet.

8. The air conditioner indoor unit according to claim 7, characterized in that: The return air outlet is arranged on the upper side of the air supply outlet; the front panel is rotatably connected to the front shell, and the rotation axis of the front panel is located on the bottom side of the front panel; and / or, The air-conditioning indoor unit is an embedded air-conditioning.

9. The air conditioner indoor unit according to claim 7, characterized in that: The air conditioner indoor unit further includes a driving device mounted on the front housing, and the driving device is configured to open and / or close the front panel.

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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