Air conditioner indoor unit and air conditioner

Abstract

The utility model provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a shell, an air supply duct and one or more mixed flow fans. A main air outlet is formed in the front surface of the shell. The air supply duct is arranged in the shell, one end of the air supply duct is connected with the main air outlet and used for guiding heat exchange air flow to be blown out of the air conditioner indoor unit from the main air outlet. The mixed flow fan is arranged in the air supply duct and provided with mixed flow air inlets located in the two transverse sides of the shell and a mixed flow air outlet located in the air supply duct and facing the main air outlet. The mixed flow fan is used for blowing environment airflow so that the environment airflow can be mixed with heat exchange airflow blown out of the main air outlet. According to the air conditioner indoor unit, the air outlet of the air conditioner indoor unit blows the heat exchange airflow and the environment airflow outwards at the same time, so that the temperature difference between the air outlet airflow and the environment air is reduced, the air outlet amount is increased, and the problem that the temperature difference between the air outlet of the air conditioner indoor unit and the environment air is too large is solved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to an indoor unit of an air conditioner and an air conditioner. Background Art

[0002] In the hot summer, people generally install air conditioners at home and use the indoor unit of the air conditioner to blow cold air into the room to lower the indoor temperature. Some users prefer to let the air outlet direction of the indoor unit of the air conditioner face the body so that the air flow can take away the heat from the body.

[0003] However, the cold air blown out by the indoor unit of the air conditioner has a significant temperature difference with the ambient temperature and human body temperature. Being blown directly by cold air for a long time will cause the human body temperature to drop and feel cold. In severe cases, it will cause physical discomfort to the user and even cause disease. Utility Model Content

[0004] One aspect of the utility model aims to solve the problem that the temperature difference between the air outlet of the indoor unit of the air conditioner and the ambient air is too large.

[0005] A further object of one aspect of the present invention is to improve the structure of the mixed flow fan and enhance the air mixing effect of the mixed flow fan.

[0006] Another object of the present invention is to provide an air conditioner that solves the above-mentioned problems.

[0007] According to one aspect of the utility model, the utility model provides an air conditioner indoor unit, which includes a housing, an air supply duct and a mixed flow fan.

[0008] The front surface of the shell is provided with a main air outlet.

[0009] The air supply duct is arranged in the shell, one end of which is connected to the main air outlet, and is used for guiding the heat exchange air flow to be blown out of the indoor unit of the air conditioner from the main air outlet.

[0010] The mixed flow fan is arranged in the air supply duct and has mixed flow inlets located on both lateral sides of the shell, and a mixed flow outlet located in the air supply duct and facing the main air outlet; the mixed flow fan is used to blow the ambient air flow to mix it with the heat exchange air flow blown out from the main air outlet.

[0011] Optionally, the mixed flow fan includes: one or more centrifugal fans, and a mixed flow volute arranged outside each centrifugal fan.

[0012] At least one end of the mixed flow volute is connected to the lateral inner wall of the air supply duct and is connected to the lateral outer side of the shell to form a mixed flow air inlet; a mixed flow air outlet is also formed on the mixed flow volute.

[0013] The centrifugal fan is configured to promote the formation of an ambient air flow that enters the mixed flow volute from the mixed flow inlet and is blown out from the mixed flow outlet.

[0014] Optionally, the mixed flow fan further includes: one or more drive motors.

[0015] The driving motor is used to drive the mixed flow fan to rotate.

[0016] Optionally, there are two centrifugal fans, which are laterally spaced apart and arranged in the air supply duct.

[0017] And the number of the driving motor is one; the driving motor is arranged at the interval between the two centrifugal fans and is configured to drive the two centrifugal fans to rotate simultaneously.

[0018] Optionally, the mixed flow volute is rotatably disposed in the air supply duct, thereby changing the air outlet direction of the mixed flow fan.

[0019] Optionally, the upper end of the mixed flow volute is spaced from the upper side wall of the air supply duct, and the lower end of the mixed flow volute is spaced from the lower side wall of the air supply duct, so that the heat exchange airflow is blown out of the main air outlet from the upper and lower sides of the mixed flow fan at the same time.

[0020] Optionally, the main air outlet is opened at the lower part of the front surface of the shell; and the main air inlet is also opened at the upper part of the front surface of the shell.

[0021] Optionally, the air conditioner indoor unit also includes: an air guide plate.

[0022] The air guide plate is arranged at the main air outlet and has a rotation axis which is close to the upper side of the main air outlet and extends laterally.

[0023] And one end of the air guide plate away from the rotation axis is bent toward the main air outlet.

[0024] Optionally, the air conditioner indoor unit also includes: an air inlet baffle.

[0025] The air inlet baffle is movably arranged at the front side of the main air inlet, and is used for opening and closing the main air inlet.

[0026] According to another aspect of the utility model, the utility model provides an air conditioner.

[0027] The air conditioner comprises any one of the above-mentioned air conditioner indoor units.

[0028] The front surface of the shell of the indoor unit of the air conditioner of the utility model is provided with a main air outlet. The air supply duct is arranged in the shell, one end of which is connected to the main air outlet, and is used to guide the heat exchange airflow to be blown out of the indoor unit of the air conditioner from the main air outlet. The mixed flow fan is arranged in the air supply duct, and has mixed flow air inlets located on both sides of the shell in the horizontal direction, and mixed flow air outlets located in the air supply duct and facing the main air outlet. The mixed flow fan is used to blow the ambient airflow to mix it with the heat exchange airflow blown out from the main air outlet. The indoor unit of the air conditioner of the utility model is provided with a mixed flow fan, so that the main air outlet of the indoor unit of the air conditioner blows out the heat exchange airflow while blowing out the ambient airflow from both sides of the shell in the horizontal direction. The heat exchange airflow and the ambient airflow are mixed and blown, thereby reducing the temperature difference between the outlet airflow and the ambient air and increasing the air volume, thereby solving the problem that the temperature difference between the outlet airflow and the ambient air of the indoor unit of the air conditioner is too large.

[0029] Furthermore, the indoor unit of the air conditioner of the utility model also improves the structure of the mixed flow fan, including providing the mixed flow fan with two centrifugal fans and corresponding mixed flow volutes, and a driving motor that drives the two mixed flow fans to rotate at the same time. In addition, the indoor unit of the air conditioner of the utility model also rotatably provides the mixed flow volute, and makes it spaced apart from the upper and lower side walls of the air supply duct, so that the mixed flow fan can not only change the air outlet direction, but also cooperate with the air supply duct to have a better air supply and air mixing effect.

[0030] Based on the detailed description of some specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0032] Figure 1 is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0033] Figure 2 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0034] Figure 3 is a schematic cross-sectional view of an indoor unit of an air conditioner according to another embodiment of the utility model;

[0035] Figure 4 It is a schematic diagram of an air conditioner according to an embodiment of the utility model. DETAILED DESCRIPTION

[0036] In the description of this embodiment, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0037] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, it is defined that the features "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features.

[0038] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0039] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0040] Furthermore, in the description of this embodiment, a first feature being “above” or “below” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0041] That is, in the description of this embodiment, 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 embodiments of the present invention have the same meanings as those commonly understood by ordinary technicians in the technical field to which the present application belongs.

[0043] Figure 1 Schematic diagram of an air conditioner indoor unit 20 according to an embodiment of the present utility model.

[0044] refer to Figure 1 As shown, this embodiment provides an air conditioner indoor unit 20 , which includes: a housing 21 , an air supply duct 22 and a mixed flow fan 30 .

[0045] A main air outlet is formed on the front surface of the housing 21 .

[0046] The air supply duct 22 is disposed in the housing 21 , one end of which is connected to the main air outlet, and is used to guide the heat exchange air flow to be blown out of the air conditioner indoor unit 20 from the main air outlet.

[0047] The mixed flow fan 30 is arranged in the air supply duct 22, and has a mixed flow inlet 34A located on both sides of the shell 21, and a mixed flow outlet located in the air supply duct 22 and facing the main air outlet; the mixed flow fan 30 is used to blow the ambient air flow to mix it with the heat exchange air flow blown out from the main air outlet.

[0048] The indoor unit 20 of the air conditioner of this embodiment is provided with a mixed flow fan 30, so that the main air outlet of the indoor unit 20 of the air conditioner blows out the heat exchange airflow while also blowing out the ambient airflow from the lateral sides of the housing 21. The heat exchange airflow and the ambient airflow are mixed and blown, thereby reducing the temperature difference between the outlet airflow and the ambient air and increasing the air volume of the indoor unit 20 of the air conditioner, solving the problem of too large temperature difference between the outlet airflow of the indoor unit 20 of the air conditioner and the ambient air.

[0049] Figure 1 The arrow indicates a mixed flow air inlet 34A located on one lateral side of the shell 21 . It can be understood that another mixed flow air inlet 34A is provided on the other lateral side of the shell 21 which is not shown in the figure.

[0050] When the mixed flow fan 30 is working, it inhales ambient air from the mixed flow inlets 34A on both sides of the shell 21 to form ambient air flow and blows it toward the main air outlet through the mixed flow outlet. At the same time, the air supply duct 22 also guides the heat exchange air flow generated by the air conditioner indoor unit 20 toward the main air outlet.

[0051] Since the mixed flow fan 30 is located in the air supply duct 22, the flow direction of the ambient air flow blown by the mixed flow fan 30 is the same as the flow direction of the heat exchange air flow guided by the air supply duct 22, so the heat exchange air flow is mixed with the ambient air flow at the main air outlet and blown into the indoor environment while mixing. The actual air volume of the air conditioner indoor unit 20 is the superposition of the heat exchange air flow and the ambient air flow, so the air volume is larger than that of the conventional air conditioner indoor unit 20, and the actual coldness carried by the air flow remains unchanged, so the temperature difference between the air flow of the air conditioner indoor unit 20 and the ambient air is reduced, but the user's body feels a stronger wind feeling, so as to provide the user with a better air flow direct blowing experience, and it is not easy to cause the user's physical discomfort or even disease due to the excessively low temperature of the air flow.

[0052] The mixed flow fan 30 of this embodiment may include a cross-flow fan, an axial flow fan or a centrifugal fan. Depending on the type of fan, the arrangement of the volute and the main air outlet may also be different. And since the mixed flow air inlet 34A of the mixed flow fan 30 is located on both lateral sides of the housing 21 of the air conditioner indoor unit 20, that is, the mixed flow fan 30 has two mixed flow air inlets 34A.

[0053] The mixed flow fan 30 of this embodiment can be a mixed flow fan 30 that is transversely arranged in the air supply duct 22 and connected to both transverse side walls of the air supply duct 22 at the same time, and the two mixed flow inlets 34A are connected to both transverse ends of the same mixed flow fan 30. The mixed flow fan 30 of this embodiment can also be two mixed flow fans 30 that are arranged transversely at intervals, or are respectively close to one transverse side wall of the air supply duct 22, and each mixed flow fan 30 is respectively connected to a mixed flow inlet 34A.

[0054] Figure 2 is a schematic cross-sectional view of an air conditioner indoor unit 20 according to an embodiment of the utility model;

[0055] refer to Figure 1 and Figure 2 As shown, in some optional embodiments, the mixed flow fan 30 includes: one or more centrifugal fans 32 , and a mixed flow volute 34 disposed outside each centrifugal fan 32 .

[0056] At least one end of the mixed flow volute 34 is connected to the lateral inner wall of the air supply duct 22 and is connected to the lateral outer side of the shell 21 to form a mixed flow inlet 34A; a mixed flow outlet is also formed on the mixed flow volute 34.

[0057] The centrifugal fan 32 is configured to promote the formation of an ambient air flow that enters the mixed flow volute 34 from the mixed flow inlet 34A and is blown out from the mixed flow outlet.

[0058] The mixed flow fan 30 of this embodiment includes a centrifugal fan 32. Since the centrifugal fan 32 takes in air axially and discharges air radially, the centrifugal fan 32 of this embodiment is actually arranged in the air supply duct 22 with the rotating shaft extending transversely, so that the ambient air flow can be sucked in from at least one side of the housing 21 in the transverse direction and the air flow is blown toward the main air outlet, i.e., forward. The shape of the mixed flow volute 34 defines the air outlet direction of the centrifugal fan 32, so the shape of the mixed flow volute 34 is adapted to the air outlet direction of the centrifugal fan 32, and the mixed flow air outlet formed by the mixed flow volute is oriented toward the main air outlet direction.

[0059] The mixed flow volute 34 of this embodiment can pass through the lateral side wall of the air supply duct 22, and the end is connected to the lateral outer side wall of the shell 21, so as to form a mixed flow air inlet 34A. The end of the mixed flow volute 34 of this embodiment can also be located at the lateral side wall of the air supply duct 22, and the indoor unit 20 of the air conditioner forms a through ventilating port between the lateral side wall of the shell 21 and the air supply duct 22, and is connected to the mixed flow air inlet 34A at the end of the mixed flow volute 34.

[0060] Figure 3 is a schematic cross-sectional view of an air conditioner indoor unit 20 according to another embodiment of the utility model;

[0061] refer to Figure 2 and Figure 3 As shown, one of the upper and lower sides of the mixed flow volute 34 is obviously bent to form a volute tongue, while the other side is a smooth transition surface. By setting the position and inclination angle of this surface of the mixed flow volute 34, the air supply direction of the mixed flow fan 30 can be changed.

[0062] In some optional embodiments, the mixed flow fan 30 is detachably disposed in the air supply duct 22. The detachable mixed flow fan 30 facilitates the user or air conditioner installer to adjust the installation position of the mixed flow volute 34 according to the installation height of the air conditioner indoor unit 20.

[0063] In some optional embodiments, there may be one mixed flow fan 30, and the mixed flow fan 30 includes a centrifugal fan 32. The two ends of the mixed flow volute 34 of the mixed flow fan 30 are located at the lateral ends of the air supply duct 22 or the lateral ends of the housing 21, so that the centrifugal fan can simultaneously inhale ambient air from the lateral sides of the housing 21 and promote the formation of ambient airflow.

[0064] Since the mixed flow fan 30 of the present embodiment is laterally arranged in the air supply duct 22, the heat exchange air flow guided by the air supply duct 22 can flow through the mixed flow fan 30 from the upper side or the lower side and be blown out of the air outlet. The mixed flow outlet of the mixed flow volute 34 can be inclined toward the flow side of the heat exchange air flow to improve the air mixing effect.

[0065] In some optional embodiments, the mixed flow fan 30 further includes: one or more drive motors 36 .

[0066] The driving motor 36 is used to drive the mixed flow fan to rotate.

[0067] In some optional implementations, the mixed flow fan 30 may include a plurality of centrifugal fans 32 , and the centrifugal fans 32 may be driven by the same drive motor 36 , or may be driven by separate drive motors 36 .

[0068] For example, refer to Figure 1 As shown, in some optional embodiments, the number of the centrifugal fans 32 is two, and the two centrifugal fans 32 are laterally spaced apart and arranged in the air supply duct 22 .

[0069] And the number of the driving motor 36 is one; the driving motor 36 is disposed at the interval between the two centrifugal fans 32 and is configured to drive the two centrifugal fans 32 to rotate simultaneously.

[0070] One driving motor 36 drives two centrifugal fans 32 at the same time, so that the two centrifugal fans 32 inhale ambient air from both lateral sides of the housing 21 with the same efficiency, and the air mixing effect of the air conditioner indoor unit 20 is more uniform and stable.

[0071] In some optional embodiments, the mixed flow volute 34 is rotatably disposed in the air supply duct 22 , thereby changing the air outlet direction of the mixed flow fan 30 .

[0072] refer to Figure 3 As shown, Figure 3 The arrow indicates the rotation direction of the mixed flow volute 34 . The mixed flow volute 34 of this embodiment can rotate around a rotating axis coaxial with the centrifugal fan 32 , thereby changing the air supply direction of the mixed flow fan 30 without affecting the air supply function and effect of the mixed flow fan 30 .

[0073] Since the air conditioner indoor unit 20 of the present embodiment is provided with a mixed flow fan 30, the space in the air supply duct 22 thereof is insufficient to provide an additional air guide plate for guiding and changing the height of the supply air flow. The present embodiment provides a rotatable mixed flow volute 34 so that the air conditioner indoor unit 20 can change the air outlet direction of the mixed flow fan 30 when the heat exchange air flow and the ambient air flow are mixed and blown out of the main air outlet.

[0074] In some optional embodiments, the upper end of the mixed flow volute 34 is spaced from the upper side wall of the air supply duct 22, and the lower end of the mixed flow volute 34 is spaced from the lower side wall of the air supply duct 22, so that the heat exchange airflow is blown out of the main air outlet from the upper and lower sides of the mixed flow fan 30 at the same time.

[0075] Figure 2The arrows indicate the direction of air flow in the air supply duct 22. Figure 2 As shown, the upper end of the mixed flow volute 34 of this embodiment is spaced apart from the upper side wall of the air supply duct 22, and the lower end of the mixed flow volute 34 is spaced apart from the lower side wall of the air supply duct 22, that is, the mixed flow fan 30 is located at the middle position of the height inside the air supply duct 22. When the indoor unit 20 of the air conditioner blows out air, the ambient air flow blown out by the mixed flow fan 30 is sandwiched by the refrigeration air flow blown out from above and below it, thereby improving the mixing efficiency of the refrigeration air flow and the ambient air flow.

[0076] In some optional embodiments, the main air outlet is opened at the lower part of the front surface of the shell 21; and the main air inlet is also opened at the upper part of the front surface of the shell 21.

[0077] The air conditioner indoor unit 20 of this embodiment can be an embedded air conditioner indoor unit 20, that is, the air conditioner indoor unit 20 is embedded in the cabinet. Different from the traditional wall-mounted air conditioner indoor unit 20, the embedded air conditioner indoor unit 20 is embedded in the cabinet, so that the air conditioner indoor unit 20 is hidden in appearance, making the home layout more beautiful.

[0078] In order to adapt to the opening of the cabinet, the air conditioner indoor unit 20 of this embodiment is provided with a main air inlet on the upper part of the front surface of the shell 21, and a main air outlet is provided on the lower part of the front surface of the shell 21. That is to say, the main air inlet and the main air outlet are provided on the front surface of the shell 21 at the same time, that is, the air inlet and outlet of the air conditioner indoor unit 20 are located on the same side and correspond to the opening position of the cabinet, so that the air conditioner indoor unit 20 can take in and out air from the front at the same time.

[0079] In some optional implementations, the air conditioner indoor unit 20 further includes: an air guide plate 23 .

[0080] The air guide plate 23 is disposed at the main air outlet and has a rotation axis close to the upper side of the main air outlet and extending laterally.

[0081] In addition, one end of the air guide plate 23 away from the rotation axis is bent toward the main air outlet.

[0082] Figure 2 The figure shows a position of the air guide plate 23 when it is in the open state. The air guide plate 23 of this embodiment is turned upward around the rotation axis near the upper side of the air outlet, and uses its own plate body to separate the main air inlet from the main air outlet. Therefore, when the air guide plate 23 of this embodiment is opened, it can not only guide the air flow by adjusting the rotation height and change the air outlet distance, but also separate the main air inlet and the main air outlet on its upper and lower sides, so as to prevent the main air inlet from directly sucking the heat exchange airflow blown out from the main air outlet back into the air conditioner indoor unit 20, thereby optimizing the air inlet and outlet effects of the air conditioner indoor unit 20 and improving the heat exchange efficiency and air supply effect.

[0083] In addition, the air guide plate 23 of this embodiment is bent toward the main air outlet at one end away from the rotation axis, thereby forming a concave arc surface. When the air guide plate 23 is opened and the air conditioner indoor unit 20 is discharging air, the air flow direction at the main air outlet is guided to tilt downward along the arc surface.

[0084] Since the main air outlet of the embedded air conditioner indoor unit 20 is located at the front side thereof, the shape of the air guide plate 23 of the present embodiment can ensure that the air flow can be blown obliquely downward when the main air outlet is opened at a large degree, thereby avoiding the situation where the air supply height of the air conditioner indoor unit 20 is too high and cannot meet the direct blowing requirements of some users. In addition, the air flow blown from the main air outlet tends to flow away from the main air inlet due to the guidance of the air guide plate 23, thus also having a certain effect in preventing the air flow blown from the main air outlet from being directly sucked into the main air inlet again.

[0085] The wind deflector 23 of this embodiment can be formed by bending the entire plate body and forming an arc shape as a whole, or it can be formed as follows: Figure 2 Schematically, only the surface of the air guide plate 23 facing the main air outlet is bent, while the other side is a straight surface adapted to the shape of the main air outlet, so that it can be used to close the main air outlet.

[0086] In some optional implementations, the air conditioner indoor unit 20 further includes: an air inlet baffle 24 .

[0087] The air inlet baffle 24 is movably arranged in front of the main air inlet for opening and closing the main air inlet.

[0088] In addition to the air inlet baffle 24, the air conditioner indoor unit 20 of this embodiment may further include a supporting device 25. The supporting device 25 is disposed on the housing 21 and is used to support the air inlet baffle 24 and guide the air inlet baffle 24 to move forward and backward, thereby opening and closing the main air inlet. In this embodiment, by providing the air inlet baffle 24 that can open and close the main air inlet, the air conditioner indoor unit 20 can close the main air inlet, so that the main air inlet is not exposed to the user's line of sight.

[0089] When the main air inlet is opened, an air inlet gap will be formed between the surrounding side of the air inlet baffle 24 and the front surface of the shell 21 of the air conditioner indoor unit 20, so that air can enter the air conditioner indoor unit 20 through the upper, lower, left and right edges of the air inlet baffle 24 through the air inlet gap.

[0090] The air conditioner indoor unit 20 of this embodiment may include two groups of supporting devices 25, which are arranged on both lateral sides of the air conditioner indoor unit 20 to simultaneously provide support for both lateral sides of the air inlet baffle 24. In some optional embodiments, the air conditioner indoor unit 20 may also include only one group of supporting devices 25, which are arranged in the lateral middle of the air conditioner indoor unit 20 and connected to the lateral middle of the air inlet baffle 24. Of course, the air conditioner indoor unit 20 may also include three or more groups of supporting devices 25, which is not limited here.

[0091] The supporting device 25 of this embodiment may be a transmission connecting rod composed of one or more connecting rods, or may be a mechanical arm or a mechanical rod capable of moving forward and backward, such as an electric push rod or an electric lead screw.

[0092] In some optional implementations, the air conditioner indoor unit 20 further includes: a main fan 26 , a heat exchanger 27 and an air inlet baffle 28 .

[0093] The main fan 26 is arranged in the housing 21, and is used to promote the formation of a heat exchange airflow that enters the air conditioner indoor unit 20 from the main air inlet and blows out from the air outlet. The heat exchanger 27 is arranged in the housing 21, and is located between the air inlet and the main fan 26, and is used to exchange heat with the airflow entering the air conditioner indoor unit 20 from the main air inlet. The air inlet baffle 28 is horizontally arranged in the housing 21, and one end is close to the main air inlet, and the other end is close to the heat exchanger 27, so as to separate the airflow entering the air conditioner indoor unit 20 from the main air inlet into two parts, upper and lower.

[0094] The air inlet baffle 28 is horizontally arranged in the housing 21, with one end close to the main air inlet and the other end close to the heat exchanger 27, thereby dividing the airflow entering the air conditioner indoor unit 20 from the main air inlet into two upper and lower parts.

[0095] refer to Figure 2 As shown, in order to improve the heat exchange efficiency, the air conditioner indoor unit 20 of this embodiment has a heat exchanger 27 arranged on the upper peripheral side of the main fan 26, wherein part of the heat exchanger 27 is close to and faces the main air inlet of the air conditioner indoor unit 20, while another part of the heat exchanger 27 is away from the main air outlet due to being bent backward and downward.

[0096] Figure 2 The arrows indicate the direction of air flow at the air inlet. In order to prevent the air flow from only passing through the front half of the heat exchanger 27 close to the main air inlet, causing the rear half of the heat exchanger 27 to not participate in or participate less in heat exchange, an air inlet baffle 28 is particularly provided in the shell 21. One end of the air inlet baffle 28 is close to the main air inlet, and the other end is close to the heat exchanger 27, thereby dividing the airflow entering the air conditioner indoor unit 20 from the main air inlet into two parts, an upper part and a lower part.

[0097] The air conditioner indoor unit 20 of this embodiment utilizes the spacing of the air inlet baffle 28 to allow the air flow entering the air conditioner indoor unit 20 from the lower main air inlet to pass through the front heat exchanger 27, while also ensuring that the air flow entering the air conditioner indoor unit 20 from the upper main air inlet can flow to and pass through the rear heat exchanger 27, thereby making full use of the heat exchanger 27 and avoiding the accumulation of cold energy.

[0098] In this embodiment, a gap is formed between the upper end of the heat exchanger 27 and the upper part of the shell 21 to allow air flow to pass through, and the end of the air inlet baffle 28 can be close to the upper end of the heat exchanger 27, thereby dividing the heat exchanger 27 into two parts, front and rear, and ensuring that the air flow entering from the main air inlet of the upper half is guided to the rear half of the heat exchanger 27.

[0099] In some embodiments of the present application, the air inlet baffle 28 may not be horizontally arranged in the housing 21, that is, it may be inclined or bent, and the airflow entering the air conditioner indoor unit 20 from the main air inlet is also divided into two parts, the upper and lower parts. However, the above embodiment may affect the normal flow of the airflow and cause the air intake efficiency of the air conditioner indoor unit 20 to decrease, and therefore it is generally not the most preferred embodiment.

[0100] In some optional embodiments, the heat exchanger 27 may also be Figure 2 The embodiment shown is arranged on the upper peripheral side of the main fan 26, for example, it can be arranged in the shell 21 longitudinally or in other ways, and the air inlet baffle 28 can also be correspondingly arranged with its end located in the middle of the height of the heat exchanger 27, thereby dividing the heat exchanger 27 into two upper and lower parts opposite to the main air inlet.

[0101] Figure 4 It is a schematic diagram of an air conditioner according to an embodiment of the utility model.

[0102] The air conditioner 10 of this embodiment includes an air conditioner indoor unit 20, and also includes an air conditioner outdoor unit 10, and a refrigerant pipeline connecting the two. The compressor, condenser, and throttling device in the air conditioner outdoor unit 10 are connected to the evaporator in the air conditioner indoor unit 20 through the refrigerant pipeline, and together with other necessary components, constitute the refrigeration cycle system of the air conditioner 10. On one side of the air conditioner indoor unit 20, it can not only cool and blow refrigeration airflow, but also have a heating function and blow heating airflow.

[0103] The air conditioner indoor unit 20 of this embodiment, as the indoor part of the air conditioner 10, can have not only cooling and heating functions, but also additional functions such as dehumidification, humidification, air purification, and introduction of fresh air to the indoor environment.

[0104] The air conditioner indoor unit 20 of this embodiment has the air inlet and the air outlet both arranged on the front panel, so that the air conditioner indoor unit 20 takes in and exhausts air from the front at the same time. Therefore, it is particularly suitable for being embedded in a cabinet for use, that is, used as an embedded air conditioner indoor unit 20.

[0105] In the embodiment where the air conditioner 10 is an embedded air conditioner 10, the cabinet for placing the air conditioner indoor unit 20 can be various cabinets, which can be used for storage. The utility model does not limit the specific use of the cabinet. For example, the cabinet can be used for household purposes, and can be specifically applied to the kitchen, bathroom, living room or bedroom. For example, the cabinet can be used to be set in the kitchen to accommodate the air conditioner indoor unit 20.

[0106] However, the air conditioner 10 of this embodiment is not limited to the embedded air conditioner 10. The air conditioner indoor unit 20 can be the indoor part of the embedded air conditioner 10 installed in various cabinets or the indoor terminal model of the central air conditioner 10, or it can be the indoor part of the wall-mounted air conditioner 10 or other air conditioner indoor unit 20, which is not limited here.

[0107] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

[0108] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, devices, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, devices, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An air conditioner indoor unit, characterized in that include: A shell; a main air outlet is provided on the front surface of the shell; an air supply duct, disposed in the housing, one end of which is connected to the main air outlet and is used to guide the heat exchange airflow to be blown out of the air conditioner indoor unit from the main air outlet; and A mixed flow fan is arranged in the air supply duct and has mixed flow inlets located on both lateral sides of the shell, and a mixed flow outlet located in the air supply duct and facing the main air outlet; the mixed flow fan is used to blow ambient air flow to mix it with the heat exchange air flow blown out from the main air outlet.

2. The air conditioner indoor unit according to claim 1, characterized in that: The mixed flow fan comprises: One or more centrifugal fans, and a mixed flow volute disposed outside each of the centrifugal fans; At least one end of the mixed flow volute is connected to the lateral inner wall of the air supply duct and is connected to the lateral outer side of the shell to form the mixed flow inlet; the mixed flow outlet is also formed on the mixed flow volute; The centrifugal fan is configured to promote the formation of an ambient air flow that enters the mixed flow volute from the mixed flow inlet and is blown out from the mixed flow outlet.

3. The air conditioner indoor unit according to claim 2, characterized in that: The mixed flow fan also includes: One or more driving motors are used to drive the centrifugal fan to rotate.

4. The air conditioner indoor unit according to claim 3, characterized in that: The number of the centrifugal fans is two; the two centrifugal fans are arranged in the air supply duct at a transverse interval; and The number of the driving motor is one; the driving motor is disposed at a gap between the two centrifugal fans and is configured to drive the two centrifugal fans to rotate simultaneously.

5. The indoor unit of the air conditioner according to claim 2, characterized in that: The mixed flow volute is rotatably arranged in the air supply duct, so as to change the air outlet direction of the mixed flow fan.

6. The indoor unit of the air conditioner according to claim 2, characterized in that: The upper end of the mixed flow volute is spaced from the upper side wall of the air supply duct, and the lower end of the mixed flow volute is spaced from the lower side wall of the air supply duct, so that the heat exchange airflow is blown out of the main air outlet from the upper and lower sides of the mixed flow fan at the same time.

7. The air conditioner indoor unit according to claim 1, characterized in that: The main air outlet is opened at the lower part of the front surface of the shell; and the main air inlet is also opened at the upper part of the front surface of the shell.

8. The air conditioner indoor unit according to claim 7, characterized in that Also includes: An air guide plate, arranged at the main air outlet, and having a rotation axis close to the upper side of the main air outlet and extending laterally; and One end of the air guide plate away from the rotation axis is bent toward the main air outlet.

9. The indoor unit of the air conditioner according to claim 7, characterized in that Also includes: An air inlet baffle is movably arranged at the front side of the main air inlet and is used to open and close the main air inlet.

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

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