Wall-mounted air conditioner

Abstract

This application discloses a wall-mounted air conditioner. The wall-mounted air conditioner includes a casing, a base, a heat exchange fan, a first motor, a fresh air housing, and a fresh air fan. The casing has an internal cavity, and the fresh air housing is disposed within the cavity. The fresh air housing has a fresh air inlet and a fresh air outlet, and the casing has multiple housing outlets. The casing has a first housing outlet and a second housing outlet, located on different sides of the casing. A grille is provided at the first housing outlet, and a perforated plate is provided at the second housing outlet. The grille and perforated plate enclose a buffer cavity, which connects the fresh air outlet, the first housing outlet, and the second housing outlet. According to the embodiment of this application, the wall-mounted air conditioner increases the fresh air outlet range while reducing vortices in the airflow, lowering the resonance noise generated by the turbulent vortex flow of the fresh air, thereby improving the sound quality of the fresh air outlet and reducing noise.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more specifically, to a wall-mounted air conditioner. Background Technology

[0002] Wall-mounted air conditioners include a fresh air system, which is used to supply fresh air into the room. In related technologies, the air supply direction of the fresh air system is relatively limited, resulting in a small fresh air supply range. Moreover, the fresh air outlet generates some noise, and the sound quality needs to be improved. Utility Model Content

[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a wall-mounted air conditioner that facilitates increasing the range of fresh air delivery.

[0004] The wall-mounted air conditioner according to an embodiment of this application includes a housing, and an accommodating cavity is formed inside the housing.

[0005] The wall-mounted air conditioner also includes a base, which is located inside the accommodating cavity, and a volute-shaped air duct is formed on the base.

[0006] The wall-mounted air conditioner also includes a heat exchange fan, which is installed inside the volute duct.

[0007] The wall-mounted air conditioner also includes a first motor, which is disposed in the accommodating cavity and located at one end of the heat exchange fan along its length. The first motor is used to drive the heat exchange fan to rotate so that the air inside the air conditioner exchanges heat with the indoor space.

[0008] The wall-mounted air conditioner also includes a fresh air housing, which is disposed within the accommodating cavity. A fresh air duct is formed within the fresh air housing. The fresh air housing is provided with a fresh air inlet and a fresh air outlet, both of which are connected to the fresh air duct.

[0009] The wall-mounted air conditioner also includes a fresh air fan, which is disposed inside the fresh air housing.

[0010] The housing has a first air outlet and a second air outlet, located on different sides of the housing. A grille is provided at the first air outlet, and a perforated plate is provided at the second air outlet. The grille and the perforated plate enclose a buffer cavity, which connects the fresh air outlet, the first air outlet, and the second air outlet.

[0011] The wall-mounted air conditioner according to the embodiments of this application, by setting multiple casing air outlets all connected to the same fresh air outlet, and setting at least two casing air outlets with different orientations, helps to increase the fresh air delivery range. The expanded fresh air delivery range, no longer limited to a single direction, improves the user experience.

[0012] In this application, by installing a grille at the first air outlet of the casing, the airflow directed towards the first air outlet is rectified, resulting in a smoother airflow transition. The second air outlet of the casing increases the air outlet area and reduces wind pressure friction. The perforated plate at the second air outlet helps to reduce vortices in the airflow, lowering the resonance noise generated by the turbulent flow of fresh air, thereby improving the sound quality of the fresh air outlet and reducing noise.

[0013] In some embodiments, the mesh diameter D1 on the perforated plate satisfies: 3mm≤D1≤6mm.

[0014] Specifically, the center-to-center distance L1 between adjacent mesh holes on the perforated plate satisfies: L1≤12mm, and D1 is half of L1.

[0015] In some embodiments, the mesh plate includes at least two rows of first through holes;

[0016] Multiple first through holes in each row are spaced apart along a first direction, and at least two rows of first through holes are spaced apart along a second direction;

[0017] The first through holes in two adjacent rows are staggered along the first direction.

[0018] In some embodiments, the grille includes: a grille body having a grille inlet, a grille first outlet, and a grille second outlet; the grille inlet being connected to the fresh air outlet; the grille first outlet being connected to the first air outlet of the housing; the grille second outlet being connected to the second air outlet of the housing; a buffer cavity being formed within the grille body; fresh air blown out from the fresh air outlet being adapted to enter the buffer cavity through the grille inlet; fresh air inside the buffer cavity reaching the first air outlet of the housing through the grille first outlet; and fresh air inside the buffer cavity also reaching the second air outlet of the housing through the grille second outlet; and a partition connected to the grille body, the partition being disposed at the second outlet of the grille; and openings formed on both sides of the partition for allowing fresh air to be blown out.

[0019] In some embodiments, the wall-mounted air conditioner further includes: an air guide duct, the air guide duct being disposed at the fresh air outlet, one end of the air guide duct abutting against the fresh air housing, the other end of the air guide duct abutting against the grille, the fresh air outlet being connected to the first air outlet and the second air outlet of the housing through the air guide duct and the grille; in the air outlet direction, the flow area of ​​the air guide duct gradually increases.

[0020] Specifically, the inner circumferential surface of the air guide duct is provided with sound-absorbing holes.

[0021] Specifically, the diameter D2 of the silencing hole satisfies: 1.2mm≤D2≤4mm;

[0022] The silencing holes are arranged in multiple rows and columns, and the center-to-center distance L2 between adjacent silencing holes satisfies: 1.8mm≤L2≤6mm.

[0023] Furthermore, the air guide duct includes:

[0024] The inner cylinder has a through-hole on at least one side of its cylinder wall;

[0025] A side cover is connected to the outside of the inner cylinder and forms a sound-absorbing cavity between the side cover and the inner cylinder wall.

[0026] Furthermore, the air duct also includes a sound-absorbing component, which is disposed within the sound-absorbing cavity.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a front view of a wall-mounted air conditioner according to an embodiment of this application;

[0030] Figure 2 yes Figure 1 A schematic diagram of a cross-section cut along section AA.

[0031] Figure 3 This is a perspective view of a wall-mounted air conditioner with the panel removed according to an embodiment of this application;

[0032] Figure 4 It is an exploded view of the fresh air unit, air duct, grille, and casing;

[0033] Figure 5This is a 3D schematic diagram of a fresh air system;

[0034] Figure 6 This is an exploded view of the fresh air system;

[0035] Figure 7 This is a 3D schematic diagram of the air duct;

[0036] Figure 8 It is a 3D schematic diagram of the grille;

[0037] Figure 9 This is a partial bottom view of a wall-mounted air conditioner;

[0038] Figure 10 This is a front view of the assembly of the fresh air device and the air duct according to an embodiment of this application;

[0039] Figure 11 yes Figure 10 Sectional view along the FF direction;

[0040] Figure 12 yes Figure 10 A three-dimensional view of the device shown.

[0041] Figure label:

[0042] Wall-mounted air conditioner 10, casing 1, first air outlet of casing 11, second air outlet of casing 12, heat exchange air inlet 14, heat exchange air outlet 15, mesh plate 16, first through hole 161, second through hole 162.

[0043] Fresh air unit 20, fresh air housing 2, first housing 21, second housing 22, axial ventilation opening 221, third housing 23, fresh air inlet 24, fresh air outlet 25, fresh air fan 26, second motor 27, first air guide plate 3, second air guide plate 4, air guide tube 6, air guide inlet 61, air guide outlet 62.

[0044] 63. Silencing hole; 64. Inner cylinder; 65. Side cover; 66. Sound-absorbing component.

[0045] Panel 81, grille 82, grille inlet 821, grille first outlet 822, grille second outlet 823, buckle 824, grille body 825, partition 826, base 83, buffer chamber V1. Detailed Implementation

[0046] The following description, in conjunction with the accompanying drawings, clearly and completely describes some embodiments of this application. Obviously, the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0047] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this application. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0048] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0049] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0050] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0051] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0052] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0053] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0054] Some embodiments of this application provide a wall-mounted air conditioner 10.

[0055] Typically, air conditioners are split-type air conditioners, which include an indoor unit and an outdoor unit. The indoor and outdoor units are connected by pipes to transfer refrigerant. The indoor unit includes an indoor heat exchanger and a heat exchange fan.

[0056] The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan, and a throttling device. The compressor, outdoor heat exchanger, throttling device, and indoor heat exchanger are connected in sequence to form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor heat exchanger and the indoor heat exchanger, respectively, to achieve the air conditioner's cooling mode or heating mode.

[0057] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0058] The outdoor heat exchanger is configured to exchange heat between outdoor air and refrigerant transported within it. For example, in the cooling mode of the air conditioner, the outdoor heat exchanger operates as a condenser, causing the refrigerant compressed by the compressor to dissipate heat to the outdoor air and condense. In the heating mode of the air conditioner, the outdoor heat exchanger operates as an evaporator, causing the depressurized refrigerant to absorb heat from the outdoor air and evaporate.

[0059] In some embodiments, the outdoor heat exchanger may include heat exchange fins to increase the contact area between outdoor air and the refrigerant transported in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0060] The outdoor fan is configured to draw in outside air into the outdoor unit and expel the outdoor air, which has been heated by the outdoor heat exchanger, to the outside. The outdoor fan provides power for the flow of outdoor air.

[0061] A throttling device connects the outdoor and indoor heat exchangers. It regulates the refrigerant pressure flowing through both devices, thereby controlling the refrigerant flow rate between them. The flow rate and pressure of the refrigerant between the outdoor and indoor heat exchangers affect their heat exchange performance. The throttling device can be a throttling tube, an electronic valve, etc. When the throttling device is an electronic valve, its opening is adjustable to regulate the refrigerant flow rate and pressure.

[0062] In some designs, the air conditioner may include a four-way valve connected to the refrigerant circuit. The four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner can perform a cooling mode or a heating mode.

[0063] An indoor heat exchanger is configured to exchange heat between indoor air and a refrigerant transported within the indoor heat exchanger. In some embodiments, the indoor heat exchanger may include heat exchange fins to increase the contact area between the indoor air and the refrigerant transported within the indoor heat exchanger, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0064] The heat exchange fan is configured to draw indoor air into the indoor unit and deliver the indoor air, after heat exchange with the indoor heat exchanger, into the room, providing power for the flow of indoor air.

[0065] The following is combined with Figures 1-12 A detailed description of the wall-mounted air conditioner 10 according to an embodiment of this application.

[0066] The wall-mounted air conditioner 10 of this application is an indoor unit. The wall-mounted air conditioner 10 is typically installed on a wall, for example, in the upper area of ​​an interior wall.

[0067] Reference Figures 1-4 As shown, the wall-mounted air conditioner 10 according to the embodiment of this application includes a housing 1, and an accommodating cavity is formed inside the housing 1. The housing 1 can play a protective role and constitute the overall external structure of the wall-mounted air conditioner 10.

[0068] Typically, the casing 1 is a long, rectangular shell, with its length running horizontally along the wall. Figures 1-3 The left and right directions are indicated in the diagram. In actual products, in order to drain condensate, in some embodiments the casing 1 is mounted horizontally on the wall, forming a small angle with the horizontal plane.

[0069] The wall-mounted air conditioner 10 also includes an indoor heat exchanger (not shown in the figure), which is disposed within a housing cavity. As described above, the indoor heat exchanger is a loop in the refrigerant circuit, and refrigerant flows inside the indoor heat exchanger to cool or heat the air flowing through its surface. In the wall-mounted air conditioner 10, the indoor heat exchanger typically extends along the length of the casing 1.

[0070] For example, the indoor heat exchanger is a two-fold or three-fold heat exchanger, and each fold of the indoor heat exchanger is a plate-like structure extending along the length direction.

[0071] Reference Figures 1-4 As shown, the wall-mounted air conditioner 10 also includes a base 83, which is disposed within the accommodating cavity. A volute-like air duct is formed on the base 83, and the base 83 is fixed relative to the casing 1. In some embodiments, the base 83 is fixedly connected to the casing 1. The base 83 serves as an internal mounting support structure, and the indoor heat exchanger can be mounted on the base 83. After indoor air enters the casing 1, its flow direction is guided by the volute-like air duct, ensuring minimal resistance when the indoor air flows through the indoor heat exchanger.

[0072] The wall-mounted air conditioner 10 also includes a heat exchange fan (not shown in the figure), which is located in the volute duct and is rotatable relative to the base 83.

[0073] In some embodiments, the heat exchange fan is, for example, a cross-flow fan, which has low noise and large air volume, and the air velocity of the cross-flow fan is more evenly distributed along the axial direction of the fan, which is beneficial to increasing the air delivery distance and air delivery range. Moreover, when a cross-flow fan is used and is arranged along the length of the casing 1, it is beneficial for the driven airflow to flow through the entire indoor heat exchanger, ensuring the balance of heat exchange efficiency of each part of the indoor heat exchanger.

[0074] The wall-mounted air conditioner 10 also includes a first motor (not shown in the figure). The first motor is disposed within the accommodating cavity and is located at one end of the heat exchange fan along its length. This facilitates the installation and maintenance of the first motor, and the wall-mounted air conditioner 10 as a whole does not need to become excessively tall or thick due to the placement of the first motor. Here, the height direction of the wall-mounted air conditioner 10 is consistent with the vertical direction, and the thickness direction of the wall-mounted air conditioner 10 is consistent with the front-to-back direction. The first motor is used to drive the heat exchange fan to rotate, so that the air inside the air conditioner exchanges heat with the indoor space. In other words, the first motor is used to provide driving force for the heat exchange fan to rotate.

[0075] The wall-mounted air conditioner 10 also includes a fresh air housing 2, which is disposed within a accommodating cavity. A fresh air duct is formed within the fresh air housing 2. The fresh air housing 2 is equipped with a fresh air inlet 24 and a fresh air outlet 25, both of which are connected to the fresh air duct. Outdoor air can enter the fresh air duct through the fresh air inlet 24, and the outdoor air within the fresh air duct can enter the room through the fresh air outlet 25 and the housing outlet on the housing 1. The housing outlet provides space for the fresh air outlet 25 to discharge air.

[0076] The wall-mounted air conditioner 10 also includes a fresh air fan 26, which is disposed inside the fresh air housing 2. The rotation of the fresh air fan 26 allows outdoor air to enter the fresh air housing 2 through the fresh air inlet 24, and allows the outdoor air entering the fresh air housing 2 to enter the room through the fresh air outlet 25 and the outlet on the housing 1.

[0077] In some embodiments, refer to Figures 5-6 As shown, the wall-mounted air conditioner 10 also includes a second motor 27, which is disposed inside the fresh air housing 2. The second motor 27 is connected to the fresh air fan 26 and is used to drive the fresh air fan 26 to rotate. The second motor 27 can be an external rotor motor or an internal rotor motor.

[0078] In some embodiments, the axes of the second motor 27 and the fresh air fan 26 are both along the length of the housing 1.

[0079] The casing 1 has multiple air outlets, all of which are connected to the same fresh air outlet 25. At least two of the air outlets face different directions. By setting the air outlets with different orientations, fresh air can be blown out in different directions, thereby expanding the fresh air delivery range and no longer being limited to a single direction. This improves the user experience and increases the efficiency of indoor air exchange. In addition, setting multiple air outlets, when connected to the fresh air outlet 25, can increase the fresh air delivery area, reduce air resistance, and increase the fresh air volume.

[0080] The number and orientation of the air outlets on the casing can be set according to actual needs. For example, one or more air outlets can be set on the front face of the casing 1, one or more air outlets can be set on the bottom face of the casing 1, or one or more air outlets can be set on the left and right end faces of the casing 1.

[0081] For example, the total number of air outlets on the casing can be two, three, four, five, etc.

[0082] The rotation of the fresh air fan 26 allows outdoor air to enter the fresh air housing 2 through the fresh air inlet 24, and allows the outdoor air entering the fresh air housing 2 to enter the room through the fresh air outlet 25 and multiple housing outlets.

[0083] Conventional air outlets on conventional air conditioners are usually single and fixed, allowing fresh air to be turned on or off in a specific direction. The wall-mounted air conditioner 10 according to this application embodiment, by providing multiple air outlets on the air conditioner that are all connected to the same fresh air outlet 25, and by having at least two air outlets facing different directions, helps to increase the range of fresh air delivery.

[0084] In some embodiments of this application, the plurality of housing air outlets include a first housing air outlet 11 and a second housing air outlet 12, which are located on different sides of the housing 1. Therefore, fresh air can be blown out in different directions through the first housing air outlet 11 and the second housing air outlet 12 to expand the fresh air delivery range.

[0085] In some embodiments of this application, the first air outlet 11 of the housing is located at the bottom of the housing 1, and the second air outlet 12 of the housing is located at the front of the housing 1. Thus, the first air outlet 11 can blow fresh air downwards, and the second air outlet 12 can blow fresh air forwards.

[0086] In some embodiments of this application, the distance between the first air outlet 11 of the housing and the front end of the housing 1 is less than the distance between the first air outlet 11 of the housing 1 and the rear end of the housing 1, and the distance between the second air outlet 12 of the housing and the bottom end of the housing 1 is less than the distance between the second air outlet 12 of the housing 1 and the top end of the housing 1. Therefore, the first air outlet 11, located at the bottom of the housing 1, is closer to the front end of the housing 1, and the second air outlet 12, located on the front side of the housing 1, is closer to the bottom end of the housing 1. This makes the air blown from the first air outlet 11 and the second air outlet 12 closer to the user, allowing the user to feel the fresh air more quickly and clearly. At the same time, the user can more easily see the first air outlet 11 and the second air outlet 12, achieving visualization of the fresh air supply.

[0087] It should be noted that when measuring the distance between the first air outlet 11 of the casing and the front end of the casing 1, the measurement is the minimum dimension between the first air outlet 11 of the casing and the front end of the casing 1 in the front-rear direction of the wall-mounted air conditioner 10. Similarly, when measuring the distance between the first air outlet 11 of the casing and the rear end of the casing 1, the measurement is the minimum dimension between the first air outlet 11 of the casing and the rear end of the casing 1 in the front-rear direction of the wall-mounted air conditioner 10.

[0088] Similarly, when measuring the distance between the second air outlet 12 of the casing and the bottom of the casing 1, the measurement is the minimum dimension between the second air outlet 12 of the casing and the bottom of the casing 1 in the vertical direction of the wall-mounted air conditioner 10. Likewise, when measuring the distance between the second air outlet 12 of the casing and the top of the casing 1, the measurement is the minimum dimension between the second air outlet 12 of the casing and the top of the casing 1 in the vertical direction of the wall-mounted air conditioner 10.

[0089] In some embodiments of this application, reference is made to Figures 3-4 As shown, the casing 1 is provided with a heat exchange air inlet 14 and a heat exchange air outlet 15. The volute air duct is connected to both the heat exchange air inlet 14 and the heat exchange air outlet 15, allowing indoor air to enter the receiving cavity through the heat exchange air inlet 14 and then be blown out of the room through the heat exchange air outlet 15, thus achieving internal air circulation. Specifically, when the heat exchange fan rotates, it drives indoor air to enter the receiving cavity through the heat exchange air inlet 14 and then be blown out of the room through the heat exchange air outlet 15. In the wall-mounted air conditioner 10, the heat exchange fan is typically installed along the length of the casing 1.

[0090] By providing a heat exchange outlet 15 and a heat exchange inlet 14 on the casing 1, indoor air can be drawn into the casing 1 through the heat exchange inlet 14 when the heat exchange fan is running. After heat exchange between the indoor air and the indoor heat exchanger, the heat-exchanged air is delivered back into the room through the heat exchange outlet 15. This allows for the regulation of the indoor ambient temperature. The indoor heat exchanger can function as an evaporator, providing a cooling airflow to the indoor space through the heat exchange outlet 15, or it can function as a condenser, providing a heating airflow to the indoor space through the heat exchange outlet 15.

[0091] Reference Figures 3-4 As shown, the heat exchange air inlet 14 is located at the top of the casing 1, and the heat exchange air outlet 15 is located at the lower front of the casing 1. This allows air to enter from the top and exit from the lower front, thereby reducing the direct intake of heat exchange air from the heat exchange air outlet 15 into the heat exchange air inlet 14, and reducing the process of heat exchange air idling without participating in indoor heat exchange.

[0092] In addition, the heat exchange air inlet 14 is located on the top of the casing 1, that is, in an area that cannot be seen by the user. Hiding the heat exchange air inlet 14 can improve the appearance of the wall-mounted air conditioner 10.

[0093] It is understandable that the side of the wall-mounted air conditioner 10 that is connected to the wall is usually called the back or rear side, while the side opposite to the rear side is called the front side. Therefore, when the heat exchange outlet 15 is located at the lower front of the casing 1, the air outlet is away from the wall, the air resistance is small, and the air delivery range is wide.

[0094] Wall-mounted air conditioners 10 are typically installed on walls. To avoid interfering with daily life, they are usually mounted high up. By designing the wall-mounted air conditioner 10 to blow heat exchange air from the front and bottom, the blown heat exchange air is less likely to be blocked by the ceiling or floor. This results in less resistance and energy loss during the airflow process, a wider air delivery range, and allows the heat exchange air to quickly circulate throughout the entire indoor space, improving heat exchange efficiency.

[0095] Along the length of the wall-mounted air conditioner 10, refer to Figures 3-4 As shown, the first air outlet 11 and the second air outlet 12 of the casing are both located on the same side of the heat exchange air outlet 15, and are spaced apart from the heat exchange air outlet 15. Therefore, the fresh air blown out from the first air outlet 11 and the second air outlet 12 of the casing does not interfere with the air conditioning air blown out from the heat exchange air outlet 15.

[0096] The wall-mounted air conditioner 10 of this application can combine air conditioning air with fresh air supply to achieve a better fresh air mixing and supply effect.

[0097] In some embodiments of this application, reference is made to Figures 3-4 As shown, multiple air outlets are provided at the first air outlet 11 of the casing, and a portion of the fresh air at the fresh air outlet 25 is blown out through the air outlets. The multiple air outlets can play a protective role, preventing external debris from entering the interior of the casing 1 through the multiple air outlets.

[0098] In some embodiments of this application, reference is made to Figure 2 , Figure 4 , Figure 8 As shown, the wall-mounted air conditioner 10 also includes a grille 82, which is installed on the casing 1. The grille 82 connects the fresh air outlet 25 with the first air outlet 11 of the casing, and also connects the fresh air outlet 25 with the second air outlet 12 of the casing. Specifically, the grille 82 can better guide the air blown out of the fresh air outlet 25 to the first air outlet 11 and the second air outlet 12 of the casing.

[0099] Specifically, such as Figure 2 As shown, the housing 1 has a perforated plate 16 at the second air outlet 12. Here, the perforated plate 16 can be formed as a part of the housing 1, or it can be a separate part and assembled at the second air outlet 12 of the housing.

[0100] like Figure 2 As shown, the grille 82 and the perforated plate 16 enclose a buffer cavity V1, which connects to the fresh air outlet 25, the first air outlet 11 of the casing, and the second air outlet 12 of the casing. Through the buffer cavity V1 enclosed by the grille 82 and the perforated plate 16, the vortex airflow blown from the fresh air duct can pass through the buffer cavity V1 and be discharged to the first air outlet 11 and the second air outlet 12 of the casing.

[0101] It is understandable that the air outlet for fresh air is set on the casing 1, which makes the air outlet highly visible and the fresh air blowing feel good. However, it is inevitable that the turbulent airflow discharged from the fresh air duct will encounter the casing 1, resulting in poor sound quality due to the airflow turbulence noise.

[0102] In this application, by installing a grille 82 at the first air outlet 11 of the casing, the airflow directed towards the first air outlet 11 can be rectified, resulting in a smooth transition during airflow discharge. The second air outlet 12 of the casing increases the air outlet area and reduces wind pressure friction. The perforated plate 16 at the second air outlet 12 of the casing helps to reduce vortices in the airflow, thereby reducing the resonance noise generated by the turbulent flow of the fresh air vortex, thus improving the sound quality of the fresh air outlet and reducing noise.

[0103] In some embodiments, such as Figure 9 As shown, the mesh diameter D1 on the perforated plate 16 satisfies: 3mm ≤ D1 ≤ 6mm. The inventors' team discovered that when the mesh diameter D1 on the perforated plate 16 is controlled between 3mm and 6mm, it avoids the mesh being too small, thus reducing excessive air resistance and its impact on airflow. Controlling it within 6mm ensures that the mesh walls directly obstruct and guide the airflow. This design effectively guarantees airflow through the mesh and reduces internal turbulent vibration.

[0104] Specifically, the center-to-center distance L1 between adjacent mesh holes on the perforated plate 16 satisfies: L1≤12mm. This setting ensures the air outlet area at the second air outlet 12 of the casing and makes the mesh hole arrangement density on the perforated plate 16 relatively reasonable, thereby utilizing the mesh holes to comb and reduce the swirl of the airflow.

[0105] In some specific embodiments, the mesh diameter D1 on the perforated plate 16 is controlled to be half of the center-to-center distance L1 between adjacent meshes.

[0106] In some embodiments, the mesh plate 16 includes at least two rows of first through holes 161. Multiple first through holes 161 in each row are spaced apart along a first direction, and at least two rows of first through holes 161 are spaced apart along a second direction. Adjacent rows of first through holes 161 are staggered along the first direction. This staggered distribution allows for a denser mesh distribution, reducing the plate structure area between mesh holes and increasing the mesh's ability to reduce cyclones.

[0107] Specifically, such as Figure 9 As shown, the mesh plate 16 includes two sets of second through holes 162, which are located on both sides of the first through hole 161. One set of second through holes 162, the first through hole 161, and the other set of second through holes 162 are arranged along a first direction, with the second through holes 162 being smaller than the first through holes 161. In this way, even in areas with weaker winds at the edges, the second through holes 162 can be used to reduce the cyclone.

[0108] In some embodiments of this application, reference is made to Figure 2 , Figure 4 , Figure 8As shown, the grille 82 includes a grille body 825, which has a grille inlet 821, a first grille outlet 822, and a second grille outlet 823. The grille inlet 821 is connected to the fresh air outlet 25, the first grille outlet 822 is connected to the first air outlet 11 of the housing, and the second grille outlet 823 is connected to the second air outlet 12 of the housing. Fresh air blown out from the fresh air outlet 25 can enter the interior of the grille 82 through the grille inlet 821. The fresh air inside the grille 82 reaches the first air outlet 11 of the housing through the first grille outlet 822, and also reaches the second air outlet 12 of the housing through the second grille outlet 823. The fresh air blown out from the first air outlet 11 and the second air outlet 12 of the housing is then blown into the room. The grille body 825 can better guide the air blown out from the fresh air outlet 25 to the first air outlet 11 and the second air outlet 12 of the housing.

[0109] Reference Figure 8 As shown, the grille 82 also includes a partition 826, which is connected to the grille body 825. The partition 826 is located at the second outlet 823 of the grille and is arranged in a grid or parallel strip pattern. Perforations are formed on both sides of the partition 826 for allowing fresh air to be blown out. The partition 826 provides protection, preventing external debris from entering the housing 1 through the second air outlet 12.

[0110] Reference Figure 8 As shown, the grille body 825 has a buckle 824 on at least one side, and the grille 82 is fixed inside the housing 1 by the buckle 824. Specifically, the housing 1 has a slot. When the buckle 824 is engaged with the slot, the grille 82 is fixed inside the housing 1. When the buckle 824 is separated from the slot, the grille 82 can be removed from the housing 1.

[0111] Specifically, a sealing strip is provided between the grille body 825 and the fresh air housing 2 at the fresh air outlet 25. The width of the sealing strip is between 4mm and 8mm, and the width of the mating surface between the grille body 825 and the fresh air housing 2 is between 2mm and 4mm, thereby ensuring the sealing performance of the fresh air housing 2 at the fresh air outlet 25 and the grille body 825.

[0112] In some embodiments of this application, reference is made to Figure 2 , Figure 4 , Figures 7-8 As shown, the wall-mounted air conditioner 10 also includes an air guide duct 6, which is located at the fresh air outlet 25. One end of the air guide duct 6 abuts against the fresh air housing 2, and the other end of the air guide duct 6 abuts against the grille 82. The fresh air outlet 25 is connected to the first air outlet 11 and the second air outlet 12 of the housing through the air guide duct 6 and the grille 82.

[0113] The air duct 6 has an air inlet 61 and an air outlet 62. The grille 82 has a grille inlet 821, a first grille outlet 822, and a second grille outlet 823. The air inlet 61 is connected to the fresh air outlet 25, and the air outlet 62 is connected to the grille inlet 821. The fresh air blown out of the fresh air outlet 25 enters the interior of the air duct 6 through the air inlet 61, and then enters the interior of the grille 82 through the air outlet 62 and the grille inlet 821. The fresh air inside the grille 82 reaches the first air outlet 11 of the casing through the first grille outlet 822. The fresh air inside the grille 82 also reaches the second air outlet 12 of the casing through the second grille outlet 823. The fresh air blown out of the first air outlet 11 and the second air outlet 12 of the casing is blown into the room. The air duct 6 and the grille 82 work together to better guide the air blown out of the fresh air outlet 25 to the first air outlet 11 and the second air outlet 12 of the casing, and then blow it into the room through the first air outlet 11 and / or the second air outlet 12 of the casing.

[0114] In some embodiments of this application, the flow area of ​​the air guide duct 6 gradually increases in the air outlet direction. As a result, the air guide duct 6 can amplify the outdoor air blown out of the fresh air outlet 25, thereby reducing the wind speed reaching the first air outlet 11 and the second air outlet 12 of the housing, so as to avoid causing discomfort to the user when the wind speed is too high.

[0115] In some embodiments of this application, the air guide duct 6 is constructed in a cylindrical shape, such as a conical tube or a square conical tube. The small diameter end of the air guide duct 6 faces the fresh air outlet 25, and the large diameter end of the air guide duct 6 faces the grille 82, that is, towards the first air outlet 11 and the second air outlet 12 of the housing.

[0116] Specifically, such as Figure 10 As shown, the inner circumferential surface of the air guide duct 6 is provided with a noise-absorbing hole 63. It can be understood that sound waves have periodic compression and sparsity vibrations. By setting the noise-absorbing hole 63 on the inner circumferential surface of the air guide duct 6, a certain phase difference is designed to be generated when the sound waves enter and exit, so that the amplitudes of sound waves with different phases may cancel each other when they meet, thereby reducing noise.

[0117] Specifically, such as Figure 10 As shown, the diameter D2 of the silencing hole 63 satisfies: 1.2mm ≤ D2 ≤ 4mm. This effectively limits the noise amplitude in the 1000–3000 Hz range. Since the noise generated by the fresh air unit 20 has relatively high energy in this frequency range, targeted silencing can maximize the silencing effect of the silencing hole 63.

[0118] Specifically, the silencing holes 63 are arranged in multiple rows and columns, and the center-to-center distance L2 between adjacent silencing holes 63 satisfies: 1.8mm≤L2≤6mm. This ensures a reasonable distribution density of the silencing holes 63 and increases the silencing effect.

[0119] In some specific embodiments, such as Figure 10 and Figure 12 As shown, the air duct 6 includes an inner cylinder 64 and a side cover 65. At least one side wall of the inner cylinder 64 has a through-hole silencing hole 63. The side cover 65 is connected to the outside of the inner cylinder 64, forming a silencing cavity between itself and the inner cylinder 64 wall. This arrangement makes the silencing hole 63 a through-hole in the inner cylinder 64 wall, facilitating manufacturing. By utilizing the silencing cavity formed between the side cover 65 and the inner cylinder 64 wall, sound waves enter the silencing cavity through the silencing hole 63. When the sound waves enter the larger silencing cavity from the narrow channel (i.e., the silencing hole 63), the sudden expansion of the space causes the sound waves to "diffuse," and the sound pressure level decreases with the volume expansion, resulting in sound wave attenuation and noise reduction.

[0120] Furthermore, the air duct 6 also includes a sound-absorbing component 66, which is disposed within the sound-absorbing cavity. Thus, by utilizing the porosity of the sound-absorbing component 66, and through a unique structural design and material properties, efficient absorption and attenuation of sound waves are achieved.

[0121] Specifically, the sound-absorbing component 66 can be sound-absorbing cotton or a honeycomb structure, etc., without limitation.

[0122] With this combination, the sound waves are reflected and refracted multiple times in the anechoic cavity, and the propagation path is extended. During this process, the sound waves continuously collide with the cavity wall and the sound-absorbing component 66, and the energy is gradually dissipated, reducing noise.

[0123] In some embodiments of this application, reference is made to Figures 5-6 As shown, the fresh air housing 2 may include a first housing 21 and a second housing 22. The second housing 22 is detachably connected to the first housing 21, forming an air intake cavity between the second housing 22 and the first housing 21. A fresh air inlet 24 is connected to the air intake cavity and is located on the first housing 21 and / or the second housing 22. When the fresh air inlet 24 is open, outdoor air can enter the air intake cavity through the fresh air inlet 24. The separate design of the second housing 22 and the first housing 21 facilitates the installation and disassembly of the components inside the air intake cavity.

[0124] The fresh air inlet 24 can be located solely on the first housing 21, solely on the second housing 22, or jointly enclosed by the first housing 21 and the second housing 22, for example... Figure 6 In the example, open half-openings are formed on the first shell 21 and the second shell 22 respectively, which are combined into a fresh air inlet 24, thereby facilitating processing or demolding and resulting in a low molding scrap rate.

[0125] The second housing 22 and the first housing 21 can be detachably connected by bolts, fasteners, clips, or other structures.

[0126] Reference Figures 5-6As shown, the fresh air housing 2 also includes a third housing 23, which is detachably connected to the second housing 22. An air outlet cavity is formed between the third housing 23 and the second housing 22, and this air outlet cavity is connected to the air inlet cavity. A fresh air outlet 25 is located on the second housing 22 and / or the third housing 23, and is connected to the air outlet cavity. Outdoor air entering the air inlet cavity through the fresh air inlet 24 can enter the air outlet cavity. When the fresh air outlet 25 is opened, outdoor air in the air outlet cavity can be blown into the room through the fresh air outlet 25. The separate design of the third housing 23 and the second housing 22 facilitates the installation and disassembly of components inside the air outlet cavity.

[0127] The fresh air outlet 25 can be located solely on the second housing 22, solely on the third housing 23, or it can be jointly enclosed by the second housing 22 and the third housing 23, for example, in... Figure 6 In one example, the fresh air outlet 25 is only provided on the third housing 23; in another example, in some embodiments not shown in the figure, the second housing 22 and the third housing 23 are respectively formed with open half openings to be combined into the fresh air outlet 25, which facilitates processing or demolding and results in a low scrap rate.

[0128] The third housing 23 and the second housing 22 can be detachably connected through bolts, fasteners, clips, or other structures.

[0129] In some embodiments of this application, reference is made to Figures 4-6 As shown, the first housing 21, the second housing 22 and the third housing 23 are arranged sequentially along the length of the housing 1 to make full use of the space along the length of the housing 1 and to avoid the wall-mounted air conditioner 10 being too large in the vertical direction.

[0130] In some embodiments of this application, reference is made to Figures 3-6 As shown, the wall-mounted air conditioner 10 also includes a purification component 7, which is installed in the air inlet cavity. A fresh air fan 26 is installed in the air outlet cavity. The rotation of the fresh air fan 26 allows outdoor air to enter the fresh air housing 2 through the fresh air inlet 24, and also allows the outdoor air entering the fresh air housing 2 to pass through the purification component 7 before entering the room through the fresh air outlet 25. The purification component 7 is used to purify the fresh air blown into the room, improving the cleanliness of the indoor air.

[0131] The purification component 7 is located at the axial air intake end of the fresh air fan 26. The fresh air flow can blow almost vertically over the purification component 7, which can further reduce the fresh air intake consumption and thus increase the fresh air volume.

[0132] In some embodiments of this application, reference is made to Figures 5-6 As shown, the fresh air housing 2 is also equipped with an installation port, into which the purification component 7 can be detachably installed. This facilitates the removal of the purification component 7 for repair or replacement when it is damaged or saturated.

[0133] For example, such as Figure 6 As shown, the mounting port is formed between the first housing 21 and the second housing 22, and the purification component 7 can be detachably assembled into the air inlet cavity through the mounting port. This allows for a larger mounting port size, facilitating the installation of larger purification components 7. When the mounting port size is large, the mounting port is formed between the first housing 21 and the second housing 22, with each housing forming an open semi-open section, facilitating processing or demolding and resulting in a low reject rate.

[0134] For example, in the front-to-back direction of the wall-mounted air conditioner 10, the mounting port is located on the front side of the wall-mounted air conditioner 10, so that the purification component 7 can be disassembled without being interfered with by the duct connected to the fresh air inlet 24, thus facilitating disassembly. For example, refer to Figures 1-4 As shown, the front side of the housing 1 is provided with an openable panel 81. When the panel 81 is removed or rotated upward, the mounting port can be exposed, which facilitates the disassembly of the purification component 7.

[0135] It is also possible that in some designs, the installation port will be located at the bottom of the wall-mounted air conditioner 10.

[0136] In some embodiments of this application, reference is made to Figure 6 As shown, the second housing 22 is provided with an axial ventilation port 221, and the purification component 7 includes a filter screen, which covers the axial ventilation port 221. The filter screen covers the entire air intake end of the fresh air fan 26, providing a large coverage area and excellent filtration effect. The filter screen helps ensure sufficient contact area with the flowing air, and is lightweight with low noise. For example, the filter screen is made of HEPA mesh, thus having strong adsorption capacity and a strong filtration effect for dust in the air.

[0137] For example, the filter is plate-shaped, so the filter is thin overall and will not take up too much space when placed after the fresh air housing.

[0138] For example, the filter screen is square, which makes it easy to position and install the filter screen.

[0139] In some embodiments, the filter screen is a square mesh, with its side length greater than the diameter of the axial vent 221. The square mesh is easy to position during fixing, does not easily wobble after fixing, and is easy to process with minimal processing waste. By making the side length of the filter screen greater than the diameter of the axial vent 221, all fresh air entering the axial vent 221 can flow through the filter screen, resulting in high filtration cleanliness.

[0140] The fresh air unit 20 consists of a fresh air housing 2, a fresh air fan 26, a second motor 27, and a purification component 7.

[0141] It should be noted that any one of the technical solutions disclosed in this application can solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose to a certain extent; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose; some technical disclosures can be selected and combined into an overall solution, while adopting related technologies and deteriorating solutions, but the deterioration trend can be compensated by the means of this technical disclosure, and the overall solution can solve one or more of the above-mentioned technical problems and achieve a certain disclosure purpose to a certain extent; each technical disclosure combined into a complete technical solution constitutes an organic and indivisible overall solution, which solves the technical problems and achieves a certain disclosure purpose as a whole.

[0142] Any technical disclosure in this application, as well as the recombination of multiple technical disclosures, can form a complete technical solution and solve one or more of the aforementioned technical problems, thereby achieving the purpose of disclosure. All of these fall under the content of this application and are directly and unambiguously determined based on the content of this application.

[0143] Those skilled in the art will understand that the scope of this application is not limited to the embodiments described above, and that modifications and substitutions can be made to certain elements of the embodiments without departing from the spirit of this application. The scope of this application is limited by the appended claims.

Claims

1. A wall-mounted air conditioner (10), characterized in that, include: The housing (1) has an accommodating cavity formed inside; A base (83) is disposed in the accommodating cavity, and a spiral tongue air duct is formed thereon; A heat exchange fan is installed inside the volute air duct; A first motor is disposed within the accommodating cavity and located at one end of the heat exchange fan along its length, for driving the heat exchange fan to rotate so that air exchanges heat with the indoor space inside the air conditioner; Its characteristic is that it further includes: Fresh air housing (2), the fresh air housing (2) is disposed in the accommodating cavity, a fresh air duct is formed inside the fresh air housing (2), the fresh air housing (2) is provided with a fresh air inlet (24) and a fresh air outlet (25), the fresh air inlet (24) and the fresh air outlet (25) are both connected to the fresh air duct; Fresh air fan (26), the fresh air fan (26) is disposed inside the fresh air housing (2); in, The housing (1) is provided with a first air outlet (11) and a second air outlet (12), and the first air outlet (11) and the second air outlet (12) are located on different sides of the housing (1). The housing (1) is provided with a grille (82) at the first air outlet (11) of the housing and a perforated plate (16) at the second air outlet (12) of the housing; The grille (82) and the perforated plate (16) enclose a buffer cavity (V1), which is connected to the fresh air outlet (25), the first air outlet (11) of the housing, and the second air outlet (12) of the housing.

2. The wall-mounted air conditioner (10) according to claim 1, characterized in that, The mesh diameter D1 on the perforated plate (16) satisfies: 3mm≤D1≤6mm.

3. The wall-mounted air conditioner (10) according to claim 2, characterized in that, The center-to-center distance L1 between adjacent meshes on the perforated plate (16) satisfies: L1≤12mm, and D1 is half of L1.

4. The wall-mounted air conditioner (10) according to claim 1, characterized in that, The mesh plate (16) has at least two rows of first through holes (161) on its mesh. Multiple first through holes (161) in each row are arranged at intervals along a first direction, and at least two rows of first through holes (161) are arranged at intervals along a second direction; The first through holes (161) in two adjacent rows are staggered along the first direction.

5. The wall-mounted air conditioner (10) according to claim 1, characterized in that, The grille (82) includes: A grille body (825) is provided with a grille inlet (821), a grille first outlet (822) and a grille second outlet (823). The grille inlet (821) is connected to the fresh air outlet (25). The grille first outlet (822) is connected to the first air outlet (11) of the housing. The grille second outlet (823) is connected to the second air outlet (12) of the housing. A buffer chamber (V1) is formed inside the grille body (825). The fresh air blown out from the fresh air outlet (25) is suitable to enter the buffer chamber (V1) through the grille inlet (821). The fresh air inside the buffer chamber (V1) reaches the first air outlet (11) of the housing through the grille first outlet (822). The fresh air inside the buffer chamber (V1) also reaches the second air outlet (12) of the housing through the grille second outlet (823). A partition (826) is connected to the grille body (825). The partition (826) is located at the second outlet (823) of the grille. Holes are formed on both sides of the partition (826) for fresh air to be blown out.

6. The wall-mounted air conditioner (10) according to any one of claims 1-5, characterized in that, The wall-mounted air conditioner (10) also includes: An air guide tube (6) is provided at the fresh air outlet (25). One end of the air guide tube (6) abuts against the fresh air housing (2), and the other end of the air guide tube (6) abuts against the grille (82). The fresh air outlet (25) is connected to the first air outlet (11) and the second air outlet (12) of the housing through the air guide tube (6) and the grille (82). In the air outlet direction, the flow area of ​​the air guide tube (6) gradually increases.

7. The wall-mounted air conditioner (10) according to claim 6, characterized in that, The inner circumferential surface of the air guide tube (6) is provided with a sound-absorbing hole (63).

8. The wall-mounted air conditioner (10) according to claim 7, characterized in that, The diameter D2 of the silencing hole (63) satisfies: 1.2mm≤D2≤4mm; The silencing holes (63) are arranged in multiple rows and columns, and the center-to-center distance L2 between adjacent silencing holes (63) satisfies: 1.8mm≤L2≤6mm.

9. The wall-mounted air conditioner (10) according to claim 7, characterized in that, The air guide duct (6) includes: The inner cylinder (64) has a through-hole (63) on at least one side of its cylinder wall; Side cover (65) is connected to the outside of the inner cylinder (64) and forms a sound-absorbing cavity between the side cover (65) and the cylinder wall of the inner cylinder (64).

10. The wall-mounted air conditioner (10) according to claim 9, characterized in that, The air duct (6) further includes a sound-absorbing component (66), which is disposed inside the sound-absorbing cavity.

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