Wall-mounted air conditioner

Abstract

The utility model discloses a wall-mounted air conditioner, and belongs to the field of household appliances. The wall-mounted air conditioner comprises a main body. The main body comprises a machine shell and a base. The wall-mounted air conditioner further comprises a heat exchange fan, a public motor, a fresh air fan, an exhaust fan and a volute assembly, the public motor is located at one end of the heat exchange fan in the length direction, the fresh air fan is located at the other end of the heat exchange fan in the length direction, and the public motor drives the heat exchange fan, the fresh air fan and the exhaust fan to rotate at the same time. The volute assembly is provided with a drainage channel communicating with the fresh air channel and the exhaust air channel. According to the wall-mounted air conditioner, the three fans share the same motor, the overall size can be reduced, the number of the motors is reduced, and cost is saved. Condensate water in the air exhaust duct and the fresh air duct can be finally discharged out of the room from the air exhaust duct, so that accumulation of the condensate water in the fresh air duct and bacterium breeding can be reduced, the probability of blowing water into the room is reduced, and the use comfort is improved.

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] In related technologies, some wall-mounted air conditioners are equipped with heat exchange fans, fresh air fans, and exhaust fans. The heat exchange fans are used to exchange heat between the air inside the air conditioner and the indoor space. The fresh air fans draw in fresh air from the outside, and the exhaust fans exhaust indoor air. Each of the heat exchange fans, fresh air fans, and exhaust fans requires a separate motor to drive, which results in higher costs and larger sizes for wall-mounted air conditioners.

[0003] Furthermore, when the fresh air intake and exhaust systems operate simultaneously, and the air conditioner is in cooling mode, the air drawn in by the fresh air module will condense when it encounters cold air. This condensation will then be blown into the room by the fresh air module, affecting user comfort. Therefore, resolving the issue of the fresh air module blowing condensation into the room is also a problem that needs to be addressed. Utility Model Content

[0004] This application aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this application proposes a wall-mounted air conditioner that can both reduce the number of motors and decrease the likelihood of water being blown into the room.

[0005] A wall-mounted air conditioner according to an embodiment of this application includes: a main body. The main body includes: a casing, the interior of which forms a receiving cavity, and a heat exchange air inlet and a heat exchange air outlet formed on the casing. The main body includes: a base disposed within the receiving cavity, on which a volute air duct is formed. The wall-mounted air conditioner also includes: a heat exchange fan disposed within the volute air duct.

[0006] The wall-mounted air conditioner also includes: a common motor, disposed within the accommodating cavity and located at one end along the length of the heat exchange fan. The wall-mounted air conditioner further includes: a fresh air fan, which is an axially intake and radially exhaust centrifugal fan. The wall-mounted air conditioner also includes: an exhaust fan, which is an axially intake and radially exhaust centrifugal fan. The fresh air fan and the exhaust fan are located at the other end along the length of the heat exchange fan, and the common motor drives the heat exchange fan, the exhaust fan, and the fresh air fan to rotate synchronously during operation.

[0007] The wall-mounted air conditioner also includes: a volute assembly, within which a fresh air duct and an exhaust air duct are formed. The volute assembly has a fresh air inlet, a fresh air outlet, an exhaust air inlet, and an exhaust air outlet. The fresh air inlet and outlet are both connected to the fresh air duct, and the exhaust air inlet and outlet are both connected to the exhaust air duct. A fresh air fan is disposed within the fresh air duct. Rotation of the fresh air fan allows outdoor air to enter the fresh air duct through the fresh air inlet and allows outdoor air entering the fresh air duct to enter the room through the fresh air outlet. An exhaust fan is disposed within the exhaust air duct. Rotation of the exhaust fan allows indoor air to enter the exhaust air duct through the exhaust air inlet and allows indoor air entering the exhaust air duct to be exhausted to the outside through the exhaust air outlet.

[0008] The volute assembly is provided with a drainage channel connecting the fresh air duct and the exhaust air duct.

[0009] The wall-mounted air conditioner according to the embodiments of this application can simultaneously exhaust and draw air into the room, thereby improving the indoor air exchange efficiency.

[0010] The heat exchange fan, exhaust fan, and fresh air fan share the same motor, which reduces the overall size, the number of motors, and costs. In this application, by providing a drainage channel connecting the fresh air duct and the exhaust duct on the volute assembly, condensate in the exhaust and fresh air ducts can flow to the exhaust duct, then with the airflow to the exhaust outlet, and finally to the outside. This reduces the accumulation of condensate in the fresh air duct, reducing bacterial growth. Furthermore, the condensate can be discharged to the outside through the exhaust duct, reducing the likelihood of water being blown into the room and improving user comfort.

[0011] In some embodiments, the volute assembly includes: a partition wall located between the fresh air duct and the exhaust air duct; the drainage channel is a through hole formed in the partition wall.

[0012] In some embodiments, the drainage channel has: an inlet connected to the fresh air duct; and an outlet connected to the exhaust air duct; the inlet is located on or near the bottom wall of the fresh air duct.

[0013] Specifically, the water outlet is located above the exhaust outlet.

[0014] Furthermore, at least a portion of the bottom wall of the fresh air duct gradually slopes downward in the direction toward the water inlet.

[0015] In some embodiments, the wall-mounted air conditioner further includes: a purification component, which is installed in the fresh air duct, and the rotation of the fresh air fan causes outdoor air to be blown from the fresh air inlet through the purification component, then into the fresh air fan, and then into the room from the fresh air outlet.

[0016] Specifically, the drainage channel is located on the side of the purification component away from the fresh air fan.

[0017] In some embodiments, the fresh air fan is located between the exhaust fan and the heat exchange fan; the volute assembly includes: a first common volute half, the first common volute half comprising:

[0018] The system comprises: a first exhaust half-shell section; a second common volute half-body, the second common volute half-body being detachably connected to the first common volute half-body; the second common volute half-body including: a second exhaust half-shell section, the second exhaust half-shell section and the first exhaust half-shell section together forming the exhaust duct; a first fresh air volute half-body, the first fresh air volute half-body being disposed on the side of the first common volute half-body facing the heat exchange fan; and a second fresh air volute half-body, the second fresh air volute half-body being disposed on the side of the second common volute half-body facing the heat exchange fan, the second fresh air volute half-body being detachably connected to the first fresh air volute half-body, and together forming at least a portion of the fresh air duct.

[0019] Specifically, the first common volute half further includes: a first hood half, which is disposed between the first exhaust half and the first fresh air volute half; the second common volute half further includes: a second hood half, which is disposed between the second exhaust half and the second fresh air volute half, and the second hood half is detachably connected to the first hood half.

[0020] The fresh air duct includes a connected volute cavity and a fresh air cavity, and the fresh air cavity is formed between the first half-shell portion and the second half-shell portion of the hood.

[0021] The first half-shell portion, the second half-shell portion, the first fresh air volute half-body, and the second fresh air volute half-body surround the volute cavity, and the fresh air fan is located inside the volute cavity.

[0022] Specifically, the first common volute half further includes: a first fresh air half-shell portion, the first housing half-shell portion being disposed on the side of the first housing half-shell portion facing the heat exchange fan, the first fresh air half-shell portion and the second fresh air volute half-body together forming a second fresh air outlet; the second common volute half-body further includes: a second fresh air half-shell portion, the second fresh air half-shell portion being disposed on the side of the second housing half-shell portion facing the heat exchange fan, the second fresh air half-shell portion and the first fresh air volute half-body together forming a first fresh air outlet.

[0023] In other embodiments, the exhaust fan is located between the fresh air fan and the heat exchange fan; the volute assembly includes: a first volute half; an exhaust volute half located on the side of the first volute half facing the common motor; a common volute, the common volute including: a fresh air volute portion detachably connected to the first volute half, the fresh air volute portion and the first volute half forming part of the fresh air duct; and an exhaust volute portion detachably connected to the exhaust volute half, the exhaust volute portion and the exhaust volute half forming the exhaust duct.

[0024] Specifically, the volute assembly further includes a second volute, which is located on the side of the first volute half away from the heat exchange fan, and the second volute is detachably connected to the first volute half.

[0025] Furthermore, the second volute includes: a second volute half, the second volute half being located on the side of the first volute half away from the heat exchange fan, and the second volute half being detachably connected to the first volute half, the second volute half being provided with an axial ventilation opening, and a volute cavity being formed between the second volute half, the fresh air volute part and the first volute half, and the fresh air fan being located in the volute cavity.

[0026] Furthermore, the second volute also includes a fan cover, which is located on the side of the second volute half away from the heat exchange fan, and the fan cover is detachably connected to the second volute half. The cavity enclosed by the fan cover and the second volute half is a fresh air 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 perspective view of a wall-mounted air conditioner according to an embodiment of this application;

[0030] Figure 2 This is a perspective view of a wall-mounted air conditioner with its panel and air deflector concealed, according to some embodiments.

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

[0032] Figure 4 It is a perspective view of the interior of the main body in one direction according to some embodiments;

[0033] Figure 5 This is a partial perspective view of the interior of the main body in another direction according to some embodiments;

[0034] Figure 6 This is a perspective view of a bidirectional ventilation assembly in one direction according to some embodiments;

[0035] Figure 7 This is a perspective view of a bidirectional ventilation assembly according to some embodiments in another direction;

[0036] Figure 8 This is a cross-sectional view of a bidirectional ventilation assembly according to some embodiments;

[0037] Figure 9 This is a front view of a bidirectional ventilation assembly according to some embodiments;

[0038] Figure 10 yes Figure 9 Sectional view along the CC direction;

[0039] Figure 11 yes Figure 9 Sectional view along the DD direction;

[0040] Figure 12 yes Figure 9 Sectional view along the EE direction;

[0041] Figure 13 This is a cross-sectional view of the bidirectional ventilation assembly and components such as the common motor and heat exchange fan in one direction in some other embodiments;

[0042] Figure 14 This is a partial view from one direction of the bidirectional ventilation assembly and components such as the common motor and heat exchange fan in some other embodiments;

[0043] Figure 15 This is a partial view from another direction of the bidirectional ventilation assembly and components such as the common motor and heat exchange fan in some other embodiments;

[0044] Figure 16 This is a side view of a bidirectional ventilation assembly according to other embodiments.

[0045] Figure label:

[0046] Wall-mounted air conditioner 10000, main body 1000, casing 1, accommodating cavity V1, air inlet grille 115.

[0047] Heat exchanger air inlet 101, heat exchanger air outlet 102, casing air inlet 103, casing air outlet 105

[0048] 2. Indoor heat exchanger; 3. Base; 3. Volute air duct V03; 4. Support baffle 33

[0049] Heat exchange fan 41, common motor 42

[0050] 6. Fresh air fan; 7. Exhaust fan.

[0051] Fresh air duct V01, volute cavity V011, fresh air cavity V012, fresh air inlet 801, first fresh air outlet 802, installation port 803, purified air inlet 804, second fresh air outlet 808.

[0052] Exhaust duct V02, exhaust inlet 901, exhaust outlet 902

[0053] First common volute half 91, first exhaust half 911, first hood half 913, first fresh air half 915

[0054] Second common volute half 92, second exhaust half 921, second hood half 923, second fresh air half 925

[0055] First Fresh Air Casing Half-Body 85

[0056] Second fresh air volute half-body 86,

[0057] Cleanroom component 11

[0058] First volute half 81, first enclosure plate 811, second volute 82, second volute half 821, fan cover 822, axial ventilation opening 8211, exhaust volute half 9.

[0059] Public volute 12, fresh air volute section 121, second enclosure 1211, exhaust volute section 122, partition wall 1207.

[0060] Drainage channel V07, inlet 071, outlet 072

[0061] Panel 15, wind deflector 16. Detailed Implementation

[0062] The following description, in conjunction with the accompanying drawings, clearly and completely describes some embodiments of the present invention. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments provided by the present invention are within the scope of protection of the present invention.

[0063] 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 the present invention. 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 may be included in any suitable manner in any one or more embodiments or examples.

[0064] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0065] 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.

[0066] "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.

[0067] 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.

[0068] 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).

[0069] 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.

[0070] Some embodiments of this utility model provide a wall-mounted air conditioner 10000.

[0071] Typically, the wall-mounted air conditioner 10000 is a split-type air conditioner, which includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by pipes to transfer refrigerant. The indoor unit includes an indoor heat exchanger 2 and a heat exchange fan 41.

[0072] 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 2 form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor heat exchanger and indoor heat exchanger 2 respectively. Some wall-mounted air conditioners 10000 can achieve a cooling mode, while some wall-mounted air conditioners 10000 can also achieve a heating mode.

[0073] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0074] 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 wall-mounted air conditioner 10000, 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 wall-mounted air conditioner 10000, the outdoor heat exchanger operates as an evaporator, causing the depressurized refrigerant to absorb heat from the outdoor air and evaporate.

[0075] 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.

[0076] 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.

[0077] A throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger 2. This device regulates the refrigerant pressure flowing through both devices, thereby adjusting the refrigerant flow rate between them. The flow rate and pressure of the refrigerant flowing 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.

[0078] In some designs, the wall-mounted air conditioner 10000 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 wall-mounted air conditioner 10000 can perform a cooling mode or a heating mode.

[0079] The indoor heat exchanger 2 is configured to exchange heat between indoor air and refrigerant transported in the indoor heat exchanger 2. In some embodiments, the indoor heat exchanger 2 may include heat exchange fins to increase the contact area between the indoor air and the refrigerant transported in the indoor heat exchanger 2, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0080] The heat exchange fan 41 is configured to draw indoor air into the indoor unit and deliver the indoor air, which has been heated by the indoor heat exchanger 2, into the room. The heat exchange fan 41 provides power for the flow of indoor air.

[0081] The wall-mounted air conditioner 10000 may include a control device, which is mainly used to control the operating frequency of the compressor and the opening degree of the throttling device. Some control devices can also control the speed of the outdoor fan and the speed of the heat exchange fan 41. The control device is connected to the compressor, the throttling device, the motor that drives the outdoor fan, and the common motor 42 that drives the heat exchange fan 41 via a data cable to transmit communication information.

[0082] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor, or an application-specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device.

[0083] Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or keyboard drive).

[0084] Currently, most air conditioners are limited by size and weight, and their functions are relatively limited, usually only able to cool or heat indoor air. If users feel that the indoor air is stale or stuffy after running the air conditioner for a long time, they need to open the windows for ventilation. This is not only inconvenient, but also causes the cool or warm air to escape quickly through the windows, affecting people's comfort.

[0085] Some air-conditioning systems using this technology draw in fresh air from the outside through a fresh air intake device and exhaust indoor air through an exhaust device. However, the heat exchange fan, fresh air intake device, and exhaust device all require separate motors to drive them, resulting in high costs and large sizes for wall-mounted air conditioners.

[0086] To address the aforementioned issues, some embodiments of this utility model provide a wall-mounted air conditioner 10000, which reduces the overall size and number of motors by having the heat exchange fan 41, exhaust fan 7, and fresh air fan 6 share the same motor, thereby saving costs.

[0087] Here, the wall-mounted air conditioner 10000 is an indoor unit. The wall-mounted air conditioner 10000 is usually installed on a wall, for example, in the upper area of ​​an indoor wall.

[0088] The following is combined Figures 1-16Detailed description of the wall-mounted air conditioner 10000 according to an embodiment of this application.

[0089] Reference Figures 1-3 According to an embodiment of this application, the wall-mounted air conditioner 10000 includes a main body 1000, which includes a casing 1. The casing 1 has an accommodating cavity V1 inside, and a heat exchange air inlet 101 and a heat exchange air outlet 102 are formed on the casing 1. The casing 1 can play a protective role and constitutes the overall external structure of the wall-mounted air conditioner 10000.

[0090] Typically, the housing 1 is an elongated rectangular shell. The length of the housing 1 is horizontal, meaning it is mounted on the wall laterally. In actual products, to drain condensate, in some embodiments the housing 1 is mounted laterally on the wall at a small angle to the horizontal plane.

[0091] Reference Figure 2 The main body 1000 also includes an indoor heat exchanger 2, which is disposed within the accommodating cavity V1. As described above, the indoor heat exchanger 2 is a loop in the refrigerant circuit, and refrigerant flows inside the indoor heat exchanger 2 to cool or heat the air flowing from the surface of the indoor heat exchanger 2. In the wall-mounted air conditioner 10000, the indoor heat exchanger 2 is typically arranged to extend along the length of the casing 1.

[0092] For example, the indoor heat exchanger 2 is a two-fold or three-fold heat exchanger, and each fold of the indoor heat exchanger 2 is a plate-like structure extending along the length direction.

[0093] Reference Figure 2 The main body 1000 also includes a base 3, which is located within the accommodating cavity V1. The base 3 is an internal mounting support structure of the main body 1000, and the indoor heat exchanger 2 can be mounted on the base 3. For example, a volute air duct V03 is formed on the base 3. After the indoor air enters the casing 1, the flow direction is guided by the volute air duct V03 to ensure that the indoor air encounters less resistance when flowing through the indoor heat exchanger 2.

[0094] Reference Figures 2-4 The wall-mounted air conditioner 10000 also includes a heat exchange fan 41, which is installed inside the volute air duct V03. When the heat exchange fan 41 rotates, it can exchange heat between the air inside the air conditioner and the indoor space.

[0095] In some embodiments, the heat exchange fan 41 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 cross-flow fan, which is beneficial to increasing the air delivery distance and air delivery range. Moreover, when a cross-flow fan is used and the cross-flow fan is arranged along the length direction of the heat exchange fan 41, it is beneficial for the driven airflow to flow through the entire indoor heat exchanger 2, ensuring the balance of heat exchange efficiency of each part of the indoor heat exchanger 2.

[0096] By providing a heat exchange outlet 102 and a heat exchange inlet 101 in the casing 1, the heat exchange fan 41 can draw indoor air into the casing 1 through the heat exchange inlet 101 when it is running. After the indoor air exchanges heat with the indoor heat exchanger 2, the heat-exchanged air is sent back into the room through the heat exchange outlet 102.

[0097] Therefore, the indoor ambient temperature can be regulated. The indoor heat exchanger 2 can be used as an evaporator to provide cooling airflow to the indoor space through the heat exchange outlet 102, or the indoor heat exchanger 2 can be used as a condenser to provide heating airflow to the indoor space through the heat exchange outlet 102.

[0098] In some embodiments, the heat exchange air inlet 101 is located above the heat exchange air outlet 102 in the height direction of the main body 1000, so that air can be drawn in from above and discharged from below. Here, the height direction of the main body 1000 is the vertical direction.

[0099] Specifically, the main unit 1000 is usually installed on the wall, and to avoid interfering with people's daily lives, the main unit 1000 is usually hung in a high position. By setting the main unit 1000 to blow out heat exchange air from below, the blown heat exchange air is not easily blocked by the roof or the ground. This results in less resistance and loss during the heat exchange air blowing process, and a wider air delivery range, so that the heat exchange air can flow to the entire indoor space as quickly as possible, thereby improving heat exchange efficiency.

[0100] Reference Figures 1-3 The heat exchange air inlet 101 is located above the heat exchange air outlet 102. The heat exchange air inlet 101 can take in air from above, which can avoid taking in air from the heat exchange air outlet 102 and prevent the heat exchange air from being blown out of the heat exchange air outlet 102 and directly sucked into the heat exchange air inlet 101, thus reducing the process of heat exchange air idling without participating in the indoor heat exchange.

[0101] In some embodiments, the heat exchange air inlet 101 is located on the top of the casing 1, that is, in an area that is not visible to the user. Hiding the heat exchange air inlet 101 can improve the aesthetic appearance of the wall-mounted air conditioner 10000.

[0102] In some embodiments, the heat exchange outlet 102 is located directly in front of the housing 1, that is, the heat exchange outlet 102 blows air towards the front of the main body 1000.

[0103] It is understandable that the side of the main body 1000 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 102 is located directly in 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.

[0104] In some specific embodiments, the heat exchange outlet 102 is located on the front side of the housing 1 and near the bottom, for example, the heat exchange outlet 102 is located at the lower front corner of the housing 1. In this case, the heat exchange air blown out of the heat exchange outlet 102 flows forward and downward at the same time, so that after being delivered a certain distance, the heat exchange air can sink and fall onto people or objects on the ground, so that people or objects on the ground can be in a suitable indoor environment as soon as possible.

[0105] Reference Figure 2 , Figure 4 The wall-mounted air conditioner 10000 also includes a common motor 42, which is located within the accommodating cavity V1 and at one end of the heat exchange fan 41 along its length. This facilitates the installation and maintenance of the common motor 42, and the main body 1000 does not need to become excessively tall or thick due to the installation of the common motor 42.

[0106] Here, the height of the main body 1000 is aligned with its vertical direction, and its thickness is aligned with its front-to-back direction. It can be understood that the wall-mounted air conditioner 10000 is generally a long, narrow structure, and the length of the heat exchange fan 41 is the same as the length of the main body 1000. Figures 1-4 The left and right directions are shown.

[0107] Reference Figure 8 The wall-mounted air conditioner 10000 also includes a fresh air fan 6, which is a centrifugal fan with axial air intake and radial air outlet. The fresh air fan 6 is located at the other end of the heat exchange fan 41 along its length, that is, the fresh air fan 6 is located on the side of the heat exchange fan 41 away from the common motor 42.

[0108] Reference Figure 3 and Figure 5 , Figure 6 The wall-mounted air conditioner 10000 also includes an exhaust fan 7, which is a centrifugal fan with axial air intake and radial air exhaust. The exhaust fan 7 is located at the other end of the heat exchange fan 41 along its length, that is, the exhaust fan 7 is located on the side of the heat exchange fan 41 away from the common motor 42.

[0109] Among them, the exhaust fan 7 and the fresh air fan 6 are located at the same end of the heat exchange fan 41, and the common motor 42 drives the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 to rotate synchronously when in operation.

[0110] Centrifugal fans are characterized by their compact structure, large air volume, and low noise. Furthermore, fan noise decreases significantly as the speed decreases. Therefore, smaller centrifugal fans can meet the high air volume requirements for the fresh air fan 6 and the exhaust fan 7. The low vibration and noise of centrifugal fans make them less likely to resonate with the indoor heat exchanger 2, which helps reduce the overall vibration and noise of the wall-mounted air conditioner 10000.

[0111] Both the fresh air fan 6 and the exhaust fan 7 are centrifugal fans, allowing for a more efficient arrangement of their airflow directions. For example, the fresh air fan 6 draws in air axially and exits radially, while the exhaust fan 7 draws in air axially and exits radially. The fresh air fan 6 and exhaust fan 7 draw in air from opposite ends, and then both are driven to exit radially. The flow paths of the fresh air and exhaust air do not need to overlap axially, and their paths do not need to intersect. This helps reduce the need for bends and turns in the fresh air and exhaust paths, reducing wind resistance and energy consumption, ensuring airflow, and lowering noise.

[0112] Both the fresh air fan 6 and the exhaust fan 7 are centrifugal fans, and the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 are all driven by the same motor. This not only saves the number of motors, reduces the overall size and saves costs, but also keeps the three fans stacked along the axis of the common motor 42.

[0113] In some embodiments, the centrifugal fan itself is relatively flat in the axial direction. The stacking of the fresh air fan 6 and the exhaust fan 7 in this way can reduce the overall axial dimension occupied, so that the length of the main body 1000 does not need to be too long. Since the heat exchange fan 41, the exhaust fan 7 and the fresh air fan 6 are all driven by the same motor, the three fans rotate synchronously and in unison. There is no need for a large gap between the fresh air fan 6 and the exhaust fan 7, and the axial distance between the fresh air fan 6 and the exhaust fan 7 can be arranged relatively close.

[0114] The common motor 42, heat exchange fan 41, exhaust fan 7 and fresh air fan 6 are arranged along the length of the main body 1000, rather than along the thickness or height of the main body 1000, so that the main body 1000 of the wall-mounted air conditioner 10000 has a slender shape and a thin and light appearance.

[0115] Optionally, the common motor 42 is an external rotor motor. Optionally, the common motor 42 is an internal rotor motor.

[0116] The 10000 wall-mounted air conditioner also includes a volute assembly. For example... Figure 8 As shown, a fresh air duct V01 and an exhaust air duct V02 are formed within the volute assembly. (Refer to...) Figures 5-8 The volute assembly has a fresh air inlet 801, a fresh air outlet, an exhaust air inlet 901, and an exhaust air outlet 902. The fresh air inlet 801 and the fresh air outlet are both connected to the fresh air duct V01, and the exhaust air inlet 901 and the exhaust air outlet 902 are both connected to the exhaust air duct V02.

[0117] The fresh air fan 6 is installed inside the fresh air duct V01. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air duct V01 through the fresh air inlet 801, and allows outdoor air entering the fresh air duct V01 to enter the room through the fresh air outlet. The fresh air fan 6 drives the airflow to be drawn in through the fresh air inlet 801 and exhausted into the room through the fresh air outlet. The operation of the fresh air fan 6 provides the power for the flow of fresh air.

[0118] Therefore, by setting up a fresh air duct V01 in conjunction with a fresh air fan 6, when the indoor air is relatively polluted or the air quality is poor, the fresh air fan 6 can drive relatively fresh outdoor air into the indoor environment to improve the indoor airflow environment.

[0119] In this application, the number of fresh air outlets can be one or multiple, such as two, three, four, or more. By setting multiple fresh air outlets, the air volume can be increased.

[0120] Optionally, there may be multiple fresh air outlets, arranged in the same direction.

[0121] Alternatively, there may be multiple fresh air outlets, arranged in different directions.

[0122] In some specific embodiments, reference is made to Figure 7 The fresh air outlet includes a first fresh air outlet 802 and a second fresh air outlet 808, both of which are connected to the fresh air duct V01. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air duct V01 from the fresh air inlet 801, and allows outdoor air entering the fresh air duct V01 to enter the room from the first fresh air outlet 802 and the second fresh air outlet 808.

[0123] An exhaust fan 7 is installed within the exhaust duct V02. The rotation of the exhaust fan 7 allows indoor air to enter the exhaust duct V02 through the exhaust inlet 901 and allows indoor air entering the exhaust duct V02 to be exhausted to the outside through the exhaust outlet 902. The exhaust fan 7 drives airflow to be drawn in through the exhaust inlet 901 and discharged from the room through the exhaust outlet 902. The operation of the exhaust fan 7 provides the power for the flow of stale air.

[0124] Therefore, by setting up exhaust duct V02 in conjunction with exhaust fan 7, when the indoor air is relatively polluted or the air quality is poor, the exhaust fan 7 can draw away and exhaust the polluted airflow in the indoor space. After the indoor air volume is reduced, fresh air will be drawn in from the outside or from other rooms through doors and windows, thereby reducing the degree of indoor air pollution.

[0125] The fresh air fan 6, the exhaust fan 7, and the volute assembly constitute a two-way ventilation system, which is located within the main body 1000. This system provides fresh air to the room and exhausts indoor air to the outside.

[0126] It should be noted that the operating mode of the two-way ventilation component in the 10000 wall-mounted air conditioner can be set according to actual usage needs.

[0127] In some embodiments, the bidirectional ventilation component can operate in both fresh air mode and exhaust mode simultaneously, that is, the fresh air duct V01 and the exhaust air duct V02 can be opened at the same time. While the indoor polluted airflow flows to the outdoor space, the outdoor fresh airflow can also enter the indoor space. Through the combination of inlet and outlet airflow, the efficiency of indoor airflow improvement is increased, so as to meet the user's needs in a timely manner when the user urgently needs to exhaust or refresh the indoor air.

[0128] Furthermore, because it simultaneously exhausts indoor air to the outside and replenishes it with fresh outdoor air, maintaining a sufficient indoor air volume, it makes it easier to remove indoor air. For example, if there are irritating gases (such as gases released from home decoration materials), gas, or other gas leaks indoors, a two-way ventilation system can be set up to operate in both fresh air and exhaust modes simultaneously, achieving rapid air exchange. Compared to conventional fresh air structures that simply introduce fresh air, some embodiments of the two-way ventilation system have a larger purification flow rate per unit time, higher ventilation efficiency, and better purification effect.

[0129] Furthermore, the ventilation system avoids rapid airflow like opening a window, which could cause drastic temperature changes and discomfort for occupants due to sudden temperature increases or decreases. Also, the main structure (1000) is positioned at a higher elevation, ensuring that ventilation points are not too close to people, thus preventing discomfort.

[0130] Understandably, when the wall-mounted air conditioner 10000 is in cooling mode, the two-way ventilation component draws in fresh air from the outside to the inside, and the cooling capacity generated by the wall-mounted air conditioner 10000 can still remain indoors, resulting in minimal cooling loss. By exhausting indoor air to the outside through the exhaust duct V02, and setting the exhaust air volume to be less than the fresh air volume, cooling loss can be reduced.

[0131] The bidirectional ventilation component is located at one end of the length of the heat exchange fan 41. Compared to the main body without the bidirectional ventilation component, it only increases the lateral length. The height and thickness of the main body 1000 can remain largely unchanged or only slightly different, making the main body 1000 thin and light. When hung on the wall, it will not be too obtrusive and will not affect the layout of the indoor space. It will also not be too heavy and will not make it difficult to fix the wall-mounted air conditioner 10000, reducing the risk of it falling off the wall. The wall-mounted air conditioner 10000 remains a thin and light model overall, which is not only aesthetically pleasing when hung on the wall, but also keeps the weight under control.

[0132] Reference Figure 8 The volute assembly is provided with a drainage channel V07 that connects the fresh air duct V01 and the exhaust air duct V02.

[0133] In some embodiments, such as Figure 8 As shown, the volute assembly includes a partition wall 1207 located between the fresh air duct V01 and the exhaust air duct V02, and a drainage channel V07 is a through hole formed in the partition wall 1207. With this configuration, the drainage channel V07 is relatively short, resulting in fast drainage speed and short residence time of condensate in the fresh air duct V01.

[0134] Specifically, the drainage channel V07 has: an inlet 071 connecting to the fresh air duct V01 and an outlet 072 connecting to the exhaust air duct V02. Here, the number of drainage channels V07 can be one or more. Correspondingly, the inlet 071 can be one or more. The outlet 072 can be one or more.

[0135] exist Figure 8 In the example shown, drainage channel V07 is a through hole on the partition wall 1207 between fresh air duct V01 and exhaust air duct V02, and water inlet 071 is the opening of this through hole facing the side of fresh air duct V01. Figure 8 and Figure 10 As shown, outlet 072 is the opening of the through hole facing the exhaust duct V02.

[0136] Of course, in this application, the structure of the drainage channel V07 is not limited to the through hole on the partition wall 1207. The wall-mounted air conditioner 10000 may also include a drainage pipe, with one end of the drainage pipe being the inlet 071 connected to the fresh air duct V01 and the outlet 072 connected to the exhaust air duct V02, respectively. The cavity of the drainage pipe is the drainage channel V07. The drainage pipe can be installed inside the fresh air duct V01 and the exhaust air duct V02, or it can be installed outside the fresh air duct V01 and the exhaust air duct V02.

[0137] In some specific embodiments, the water inlet 071 is located on the bottom wall of the fresh air duct V01. It is understood that when condensate is generated in the fresh air duct V01, it will flow downwards under gravity. By placing the water inlet 071 on the bottom wall of the fresh air duct V01, the condensate can smoothly flow into the drainage channel V07 as it flows towards the bottom wall of the fresh air duct V01.

[0138] Alternatively, the water inlet 071 can also be installed on the side wall of the fresh air duct V01, but it needs to be installed near the bottom wall of the fresh air duct V01. This way, the condensate can be discharged quickly.

[0139] This reduces the amount of condensate retained in the fresh air duct V01, making it easier to drain the condensate.

[0140] In some specific embodiments, such as Figure 8 As shown, the water outlet 072 is located above the exhaust outlet 902. It can be understood that within the exhaust duct V02 above the exhaust outlet 902, the airflow direction is tangential and directly towards the exhaust outlet 902. Therefore, with the water outlet 072 located above the exhaust outlet 902, the exhaust airflow can carry the condensate directly towards the exhaust outlet 902, thus reducing the chance of the condensate being drawn into the exhaust fan 7 and circulating. Furthermore, this location results in a short drainage path, high efficiency, and minimal stagnation of the condensate.

[0141] In some specific embodiments, at least a portion of the bottom wall of the fresh air duct V01 gradually descends in the direction toward the water inlet 071. This arrangement allows condensate in the fresh air duct V01 to collect along at least a portion of the bottom wall of the fresh air duct V01 toward the water inlet 071 under the influence of gravity, further reducing the amount of condensate retained in the fresh air duct V01.

[0142] Here, the bottom wall of the fresh air duct V01 can be configured in various ways according to actual needs. For example, the entire bottom wall of the fresh air duct V01 can be a sloping wall, or part of the bottom wall of the fresh air duct V01 can be a sloping wall.

[0143] For example, the inlet 071 is located on one side wall of the fresh air duct V01, and at least a portion of the bottom wall of the fresh air duct V01 is formed as an inclined plate sloping downwards in that direction. Figure 8 In the middle, the water inlet 071 is located on the left side of the fresh air duct V01, and at least part of the bottom wall of the fresh air duct V01 is formed as an inclined plate with the left side lower and the right side higher.

[0144] For example, the water inlet 071 is located on the bottom wall of the fresh air duct V01, at least part of the bottom wall of the fresh air duct V01 is formed in the shape of a funnel, and the water inlet 071 is located at the bottom end of the funnel.

[0145] In some embodiments, such as Figure 8 As shown, the wall-mounted air conditioner 10000 also includes a purification component 11, which is installed inside the fresh air duct V01. When the fresh air fan 6 rotates, outdoor air is blown from the fresh air inlet 801 through the purification component 11, then into the fresh air fan 6, and finally into the room through the fresh air outlet. The purification component 11 improves the cleanliness of the fresh air blown out of the room. When the indoor heat exchanger 2 is in cooling mode, causing condensation in the fresh air, the condensation can remain on the purification component 11 as the air flows through it, further preventing water from being blown out of the fresh air unit.

[0146] Specifically, such as Figure 8As shown, the drain channel V07 is located on the side of the purification component 11 away from the fresh air fan 6. This allows the condensate trapped by the purification component 11 to be more easily discharged from the drain channel V07 to the exhaust duct V02.

[0147] Furthermore, the fresh air duct V01 includes a volute cavity V011 and a fresh air cavity V012. The fresh air fan 6 is located inside the volute cavity V011, and the purification component 11 is located inside the fresh air cavity V012. The fresh air cavity V012 is located between the exhaust duct V02 and the volute cavity V011. This arrangement helps to trap condensate in the fresh air duct V01 within the fresh air cavity V012, and then allow it to flow from the fresh air cavity V012 to the drainage channel V07.

[0148] Specifically, such as Figure 8 As shown, partition wall 1207 separates the fresh air chamber V012 and the exhaust air duct V02. Drainage channel V07 is provided on partition wall 1207 and located at the bottom of partition wall 1207, adjacent to the bottom wall of fresh air chamber V012. More specifically, the bottom wall of fresh air chamber V012 is an inclined wall, which is inclined downward in the direction towards partition wall 1207.

[0149] In some embodiments, the fresh air fan 6 is located between the exhaust fan 7 and the heat exchange fan 41. That is, the exhaust fan 7 is located on the side of the fresh air fan 6 away from the heat exchange fan 41, and the exhaust fan 7 is also far from the indoor heat exchanger 2. After absorbing air from the room, the amount of cold or heat absorbed from the indoor heat exchanger 2 is relatively small, and the amount of cold or heat lost when discharged to the outside is small.

[0150] In addition, the fresh air fan 6 is located between the exhaust fan 7 and the heat exchange fan 41, and the exhaust path can be separated from the heat exchange path by the fresh air path. The exhaust fan 7 is farther away from the heat exchange fan 41, and the air intake position of the exhaust air inlet 901 can be set farther away from the heat exchange air inlet 101 and the heat exchange air outlet 102, which makes it easier to separate the exhaust air intake path from the fresh air outlet path and the heat exchange air outlet path, thereby reducing the risk of airflow short circuit.

[0151] In some embodiments, such as Figure 3 and Figure 5 As shown, the exhaust air inlet 901 is located on the side of the volute assembly furthest from the heat exchange fan 41. That is, the exhaust air inlet 901 is directly opposite the axial air intake end of the exhaust fan 7, resulting in low air resistance when the exhaust fan 7 enters through the exhaust air inlet 901, which helps ensure sufficient exhaust airflow. When exhaust airflow is relatively easy to obtain, a smaller exhaust fan 7 can be selected, further reducing the size of the bidirectional ventilation assembly.

[0152] For example, the exhaust air inlet 901 is positioned away from the indoor heat exchanger 2 on the volute assembly, and its intake area avoids the indoor heat exchanger 2. When there is condensation on the indoor heat exchanger 2, or when condensation adheres to the surface of parts near the indoor heat exchanger 2 within the accommodating cavity V1, the condensation is less likely to be drawn into the exhaust duct V02 by the exhaust fan 7, reducing the risk of water accumulation and bacterial growth in the exhaust duct V02. Meanwhile, when the fresh air fan 6 rotates, it primarily draws air from the outside. At this time, the condensation on the indoor heat exchanger 2 will not be drawn into the fresh air duct V01, further reducing the risk of water accumulation and bacterial growth in the fresh air duct V01.

[0153] In some embodiments, such as Figure 3 As shown, the housing 1 has a housing air inlet 103 at one end where the volute assembly is located. The exhaust fan 7 rotates and drives indoor air into the interior of the housing 1 through the housing air inlet 103, and then into the exhaust duct V02 through the exhaust air inlet 901. This shortens the exhaust and intake path, thereby reducing exhaust and intake resistance and increasing the exhaust and intake air volume.

[0154] Specifically, no physical duct is needed to connect the air inlet 103 and the exhaust inlet 901; airflow is drawn in from the air inlet 103 solely by air pressure. The position of the air inlet 103 at the end of the housing 1 can be adjusted appropriately, for example, it can be located at the top of the housing 1, i.e., in an area not visible to the user, thus concealing the air inlet 103 and improving the aesthetics.

[0155] In some specific embodiments, the housing air inlet 103 is located on the side of the main body 1000 and is positioned directly opposite the exhaust air inlet 901. The exhaust fan 7 rotates, causing indoor air to enter the interior of the housing 1 through the housing air inlet 103, and then causes the indoor air to enter the volute assembly through the exhaust air inlet 901.

[0156] In this way, the exhaust air inlet 901 can be close to the side of the casing 1, making the air intake path from the casing air inlet 103 to the exhaust air inlet 901 shorter. Furthermore, since the air intake path from the casing air inlet 103 to the exhaust air inlet 901 is roughly along the axial direction of the exhaust fan 7, the indoor airflow does not need to change direction multiple times when flowing towards the exhaust fan 7 along this path. This further reduces the air resistance of the exhaust system, ensuring sufficient exhaust airflow.

[0157] The air inlet 103 of the casing is located on the side of the main body 1000. The side of the main body 1000 has less obstruction, so the air intake and exhaust are less obstructed outside the casing 1, which helps to ensure a smaller air intake resistance and a larger air intake and exhaust volume.

[0158] Furthermore, the exhaust air inlet location is positioned as far away from the fresh air outlet and heat exchange outlet paths as possible under limited conditions. Heat exchange air typically exits from the front or lower front corner of casing 1, with the exhaust air inlet direction forming an almost 90-degree angle with the heat exchange outlet direction. Similarly, fresh air also mostly exits from the front or lower front corner of casing 1, with the exhaust air inlet direction also forming an almost 90-degree angle with the fresh air outlet direction. This minimizes the possibility of short-circuiting the return air. This also reduces the probability of condensate being drawn away from the heat exchange path, thus reducing the potential for bacterial growth within the exhaust duct VO2.

[0159] The air inlet 103 of the casing is located on the side of the main body 1000, which provides good visibility and makes it easy to observe the air intake and exhaust conditions and the exhaust effect from the outside.

[0160] Furthermore, such as Figure 3 As shown, the housing 1 also includes an air intake grille 115 disposed at the housing air inlet 103. The air intake grille 115 can prevent foreign objects from entering the exhaust air inlet 901, reducing the risk of foreign objects blocking the exhaust fan 7. In addition, the air intake grille 115 can also improve the appearance of the housing air inlet 103.

[0161] In some specific embodiments, such as Figure 5 As shown, the volute assembly is mounted on the base 3. One end of the base 3 is provided with a support baffle 33, which is located on the side of the volute assembly away from the heat exchange fan 41.

[0162] Here, the volute assembly and heat exchange fan 41 are both mounted on the base 3. Using the same base 3 as a mounting frame, vibrations generated during operation can be transmitted to the base 3, where they are absorbed and diffused, thereby reducing vibration and noise. A support baffle 33 is provided on the side of the volute assembly away from the heat exchange fan 41 on the base 3. This baffle better supports the volute assembly and also better receives vibrations transmitted from it, consuming vibration energy and reducing vibration noise.

[0163] Specifically, the support baffle 33 is an L-shaped plate arranged around the exhaust air inlet 901. This covers the volute assembly as much as possible without affecting the air intake of the exhaust air inlet 901. Moreover, the arrangement of the support baffle 33 around the exhaust air inlet 901 also facilitates the flow of air on the outside of the support baffle 33 towards the exhaust air inlet 901, thus playing a guiding role.

[0164] In some specific embodiments, such as Figures 6-12 As shown, the volute assembly includes a first half-shell assembly and a second half-shell assembly. The first half-shell assembly is mounted on the base 3, and the second half-shell assembly is detachably mounted on the first half-shell assembly. The first half-shell assembly and the second half-shell assembly together form an exhaust duct V02, and the first half-shell assembly and the second half-shell assembly also form a fresh air duct V01.

[0165] The connection line between the first and second half-shell assemblies can be perpendicular to the axes of the fresh air fan 6 and the exhaust fan 7, meaning the connection line can be parallel to the diameter lines of the fresh air fan 6 and the exhaust fan 7. Alternatively, the connection line can deviate from the diameter lines of the fresh air fan 6 and the exhaust fan 7.

[0166] Understandably, the fresh air fan 6 and exhaust fan 7 do not require a drive motor; instead, they are driven by the heat exchange fan 41. The volute assembly primarily serves to seal the air duct and does not need to support the drive motor. The volute assembly has low structural strength requirements, and dividing it into a first half-shell assembly and a second half-shell assembly does not affect its supporting function for the fresh air fan 6 and exhaust fan 7.

[0167] Mounting the first half-shell assembly on the base 3 ensures the stability of the volute assembly foundation. The second half-shell assembly is detachably mounted on the first half-shell assembly, facilitating the assembly of the volute assembly with the fresh air fan 6 and the exhaust fan 7. Furthermore, the volute assembly can be easily opened, allowing for easy disassembly by simply opening the second half-shell assembly to expose the fresh air fan 6 and the exhaust fan 7, making inspection, disassembly, and maintenance very convenient.

[0168] In the above scheme, it is equivalent to dividing the volute assembly roughly radially into a first half-shell assembly and a second half-shell assembly. In this application, if the volute assembly is to be divided into multiple parts, it can also be divided axially, thus allowing for axial assembly and disassembly.

[0169] In some specific embodiments, such as Figures 6-12 As shown, the first half-shell assembly includes a first common volute half-body 91 and a first fresh air volute half-body 85. The second half-shell assembly includes a second common volute half-body 92 and a second fresh air volute half-body 86.

[0170] Specifically, the second common volute half 92 is detachably connected to the first common volute half 91. The first common volute half 91 includes a first exhaust half 911. The second common volute half 92 includes a second exhaust half 921, which, together with the first exhaust half 911, forms an exhaust duct V02. This creates an independent exhaust duct V02, and when the second common volute half 92 is removed from the first common volute half 91, the exhaust fan 7 is directly exposed, facilitating the disassembly, inspection, and maintenance of the exhaust fan 7.

[0171] The first fresh air volute half 85 is located on the side of the first common volute half 91 facing the heat exchange fan 41, and the second fresh air volute half 86 is located on the side of the second common volute half 92 facing the heat exchange fan 41. The second fresh air volute half 86 is detachably connected to the first fresh air volute half 85 and together form at least a portion of the fresh air duct V01. This forms an independent fresh air duct V01, and when the second fresh air volute half 86 is removed from the first fresh air volute half 85, the fresh air fan 6 is directly exposed, facilitating the disassembly, inspection, and maintenance of the fresh air fan 6.

[0172] By dividing the volute assembly into at least a first common volute half 91, a second common volute half 92, a first fresh air volute half 85, and a second fresh air volute half 86, and processing them separately, the manufacturing and assembly difficulty can be reduced. Furthermore, manufacturing such a complex housing in separate parts facilitates quality control. The first common volute half 91 and the second common volute half 92 are detachably connected, as are the first fresh air volute half 85 and the second fresh air volute half 86, which facilitates assembly and subsequent adjustment and maintenance.

[0173] Specifically, such as Figure 5 and Figure 6 As shown, the first exhaust half-shell 911 and the second exhaust half-shell 921 enclose the exhaust inlet 901, and the exhaust outlet 902 is located on the first exhaust half-shell 911. That is to say, the exhaust inlet 901 is not entirely located on the first exhaust half-shell 911, nor entirely on the second exhaust half-shell 921. Essentially, the entire exhaust half-body is divided into two parts at the exhaust inlet 901, and neither half-shell needs to completely enclose the exhaust inlet 901. The exhaust inlet 901 is an axial air inlet, and its area is typically matched with the exhaust fan 7. A larger exhaust inlet 901 is formed by the two exhaust half-shells, saving on material used in processing the half-shells. Furthermore, when the second exhaust half-shell 921 is disassembled, the exhaust inlet 901 also opens, providing more operating space for disassembly, assembly, and maintenance of the exhaust fan 7, making operation more convenient.

[0174] Specifically, the connecting surface of the first common volute half 91 and the second common volute half 92 extends vertically through the axis of the exhaust fan 7. This is equivalent to cutting the common volute part in two along the axis of the exhaust fan 7, with a large opening at the cut, allowing for easy disassembly and assembly of workpieces with ample operating space.

[0175] Specifically, such as Figure 7 and Figure 12As shown, the connecting surface of the first fresh air volute half 85 and the second fresh air volute half 86 extends downwards and forwards through the axis of the fresh air fan 6. Here, the first fresh air volute half 85 is fixed to the base 3, while the second fresh air volute half 86 is detachable from the first fresh air volute half 85. When the first fresh air volute half 85 is removed, a large opening facing forward and upward is exposed. Moreover, for the wall-mounted air conditioner 10000, when disassembling after installation, the operator can easily operate with the opening facing forward while standing in front of the main body 1000.

[0176] The first fresh air volute half 85 and the second common volute half 92 enclose the first fresh air outlet 802, and the second fresh air volute half 86 and the first common volute half 91 enclose the second fresh air outlet 808. In other words, the fresh air volute section has two fresh air outlets, with one outlet on each of the two fresh air volute halves. It is understandable that the shape of the fresh air outlets must be adapted to the characteristics of the centrifugal fan's airflow, especially to meet the vortex-like shape of centrifugal airflow. Therefore, placing the two fresh air outlets on the two separate fresh air volute halves reduces the processing difficulty of each fresh air volute half.

[0177] At this point, the connecting surface of the two fresh air volute halves is set to extend downwards in the forward direction, so that the two fresh air outlets can be distributed on the two fresh air volute halves.

[0178] Of course, a fresh air outlet can also be provided on only one fresh air volute half. However, compared to a volute assembly with only one fresh air outlet, the volute assembly of this application provides both a first fresh air outlet 802 and a second fresh air outlet 808, resulting in a larger air volume.

[0179] In some specific embodiments, such as Figures 6-11 As shown, the first common volute half 91 further includes a first hood half 913, which is disposed between the first exhaust half 911 and the first fresh air volute half 85. The second common volute half 92 further includes a second hood half 923, which is disposed between the second exhaust half 921 and the second fresh air volute half 86, and is detachably connected to the first hood half 913.

[0180] The fresh air duct V01 includes a connected volute cavity V011 and a fresh air cavity V012, with the fresh air cavity V012 formed between the first half-shell portion 913 and the second half-shell portion 923. The first half-shell portion 913, the second half-shell portion 923, the first fresh air volute half-body 85, and the second fresh air volute half-body 86 enclose the volute cavity V011, and the fresh air fan 6 is located inside the volute cavity V011.

[0181] In other words, a fresh air cavity V012 is also provided at the axial air inlet end of the volute cavity V011. With this arrangement, the fresh air cavity V012 at the air inlet end of the fresh air fan 6 buffers the airflow. The fresh air cavity V012 formed in this way can cover the axial air inlet end of the fresh air fan 6, and can be used to contain air, so that air can enter the fresh air fan 6 vertically along the axial direction from the fresh air cavity V012, thereby improving the suction efficiency of the fresh air fan 6 and reducing suction loss.

[0182] Specifically, the fresh air chamber V012 is equivalent to the negative pressure chamber of the fresh air fan 6. The negative pressure chamber creates a relatively low-pressure area at the air inlet of the fresh air fan 6, using the pressure difference to guide the surrounding air to flow more smoothly towards the fresh air fan 6. Furthermore, it makes the airflow entering the fresh air fan 6 more uniform, reducing problems such as localized airflow turbulence and uneven speed. The negative pressure chamber can pre-regulate the airflow, allowing the air to be mixed and adjusted to a certain extent within the fresh air chamber V012 before entering the fresh air fan 6, thus making the airflow speed and direction reaching the blades of the fresh air fan 6 more consistent, contributing to more efficient fan operation. By optimizing the intake airflow, the negative pressure chamber makes the airflow more stable, reducing irregular impacts between the airflow and the fan blades, and lowering the noise generated during fan operation.

[0183] The structure of the first common volute half 91 and the second common volute half 92 in this application is configured such that the fresh air cavity V012 is sandwiched between the volute cavity V011 and the exhaust air duct V02, so that the exhaust air inlet path and the fresh air outlet path can be separated by a greater distance, reducing the risk of airflow short circuit.

[0184] Furthermore, such as Figure 6 and Figure 7 As shown, the first common volute half 91 further includes: a first fresh air half 915, and a first housing half 913 located on the side of the first housing half 913 facing the heat exchange fan 41. The first fresh air half 915 and the second fresh air volute half 86 together form a second fresh air outlet 808. The second common volute half 92 further includes: a second fresh air half 925, located on the side of the second housing half 923 facing the heat exchange fan 41. The second fresh air half 925 and the first fresh air volute half 85 together form a first fresh air outlet 802. This allows the first common volute half 91 and the second common volute half 92 to match the shapes of the first fresh air volute half 85 and the second fresh air volute half 86, resulting in better connection and sealing.

[0185] Specifically, the first common volute half 91 includes a first exhaust half 911 and a first hood half 913, and the second common volute half 92 includes a second exhaust half 921 and a second hood half 923.

[0186] The first exhaust half-shell 911 and the first housing half-shell 913 can be a single piece, which reduces the number of volutes and thus reduces the assembly steps for the volute assembly. Alternatively, the first exhaust half-shell 911 and the first housing half-shell 913 can be separate pieces.

[0187] The second exhaust half-shell 921 and the second housing half-shell 923 can be a single piece, which reduces the number of volutes and thus reduces the assembly steps for the volute assembly. Alternatively, the second exhaust half-shell 921 and the second housing half-shell 923 can be separate pieces.

[0188] Specifically, the second common volute half 92 and the first common volute half 91 are detachably connected, which may include a snap-fit ​​connection or a fastener connection. Optionally, the fastener may be a bolt, screw, etc., which can securely connect the two parts.

[0189] The second fresh air volute half 86 and the first fresh air volute half 85 are detachably connected, which may include a snap-fit ​​connection or a fastener connection. Optionally, the fastener may be a bolt, screw, etc., which can securely connect the two parts.

[0190] In some specific embodiments, such as Figure 6 , Figures 10-12 As shown, at least one of the first half-shell portion 913 and the second half-shell portion 923 is provided with a fresh air inlet 801. Figure 8 As shown, at least one of the first housing half-shell portion 913 and the second housing half-shell portion 923 is provided with an axial ventilation port 8211, which connects the volute cavity V011 and the fresh air cavity V012. That is, the airflow directly enters the fresh air cavity V012 from the fresh air inlet 801, and then enters the volute cavity V011 from the axial ventilation port 8211.

[0191] With this configuration, when the fresh air fan 7 rotates, the driving airflow enters the fresh air chamber V012 through the fresh air inlet 801, then passes through the axial ventilation port 8211 into the volute chamber V011, and is drawn into the fresh air fan 7. Finally, driven by the fresh air fan 7, it is blown out from the fresh air outlet. The air entering through the fresh air inlet 801 directly enters the fresh air chamber V012 for buffering, without needing to detour from the volute chamber V011 into the fresh air chamber V012, which helps to further reduce wind resistance and increase the fresh air intake volume.

[0192] In some specific embodiments, such as Figure 2As shown, the fresh air outlet includes a first fresh air outlet 802, which is connected to the heat exchange outlet 102. This eliminates the need for a separate opening on the casing 1 for the first fresh air outlet 802, reducing the number of openings. Furthermore, the fresh air blown out from the first fresh air outlet 802 can mix with the indoor air flowing through the indoor heat exchanger 2, resulting in a more uniform temperature after mixing. This arrangement facilitates the rapid arrival of fresh air at room temperature, improving comfort during fresh air intake, and also ensures thorough mixing of the fresh air with the indoor air flowing through the indoor heat exchanger 2. This results in generally fresh air being blown into the room from the heat exchange outlet 102, improving the uniformity of fresh air distribution within the room.

[0193] In some specific embodiments, such as Figure 4 and Figure 2 As shown, the fresh air outlet includes a second fresh air outlet 808, which is located at the top of the main body 1000. The top of the housing 1 is provided with a housing outlet 105, and the second fresh air outlet 808 is connected to the housing outlet 105.

[0194] This method of directing fresh air towards the roof allows the roof to guide the airflow, expanding the air supply area. Furthermore, since the heat exchange inlet 101 is located above the heat exchange outlet 102, and its position on the casing 1 is relatively high, some of the fresh air blown from the top by the second fresh air outlet 808 can be re-inhaled into the receiving cavity V1 through the heat exchange inlet 101 and flow through the indoor heat exchanger 2.

[0195] This setup facilitates the rapid arrival of fresh air at room temperature, enhancing comfort when the fresh air is introduced. It also promotes thorough mixing of the fresh air with the indoor air flowing through the indoor heat exchanger 2, ensuring that the air blown into the room from the heat exchange outlet 102 is generally fresh and improving the uniformity of fresh air distribution within the room.

[0196] In some specific embodiments of this application, reference is made to Figure 2 , Figures 4-11 The wall-mounted air conditioner 10000 also includes a purification component 11, which is installed in the fresh air duct V01 to purify the fresh air blown into the room and improve the cleanliness of the indoor air.

[0197] Specifically, the purification component 11 is installed inside the fresh air cavity V012. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air cavity V012 through the fresh air inlet 801, and also allows the outdoor air entering the fresh air cavity V012 to pass through the purification component 11, then enter the volute cavity V011, and finally enter the room through the fresh air outlet. The purification component 11 is located at the axial air inlet end of the fresh air fan 6. The purification component 11 is connected to the volute assembly; its assembly must be convenient and it must not interfere with the fresh air fan 6.

[0198] In this way, the fresh airflow can blow almost vertically over the purification component 11, further reducing the consumption of fresh air intake and thus increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in cooling mode, causing condensation to form in the fresh air, the condensation can remain on the purification component 11 as the air flows through it, further preventing water from being blown out when the fresh air device is venting.

[0199] In some specific embodiments of this application, the purification component 11 includes a filter screen, and the filter screen cover is... Figure 8 and Figure 11 The axial vent 8211 is shown. A filter screen covers the entire air intake end of the fresh air fan 6, providing a large coverage area and excellent filtration. The filter screen design helps ensure sufficient contact area with the flowing air, while also being lightweight and producing low noise. For example, the filter screen is made of HEPA mesh, thus possessing strong adsorption capacity and excellent dust filtration efficiency.

[0200] In some specific embodiments of this application, the filter screen is plate-shaped, so that the filter screen is relatively thin and will not occupy too much thickness when placed in the two-way ventilation assembly.

[0201] In some specific embodiments of this application, the filter screen is square, which facilitates the positioning and installation of the filter screen.

[0202] In some specific embodiments of this application, the filter screen is a square mesh, and the side length of the filter screen is greater than the diameter of the axial ventilation opening 8211. The square mesh is easy to position during fixing, does not easily shake after fixing, and is easy to process with less processing waste. By making the side length of the filter screen greater than the diameter of the axial ventilation opening 8211, all fresh air entering the axial ventilation opening 8211 can flow through the filter screen, resulting in high filtration cleanliness.

[0203] In some specific embodiments, such as Figure 6 As shown, the fresh air inlet 801 is located on the first half-shell 913, and the purification component 11 is detachably installed on the second half-shell 923. This arrangement allows the fixing structures for the fresh air inlet 801 and the purification component 11 to be formed on the two half-shells respectively, reducing the processing difficulty of a single half-shell. Furthermore, since the first half-shell 913 is located between the first exhaust half-shell 911 and the first fresh air volute half-body 85, when disassembling the centrifugal fan, the first half-shell 913 can remain intact, and only the second half-shell 923 needs to be removed. Therefore, with the fresh air inlet 801 located on the first half-shell 913, disassembling the centrifugal fan does not affect the connection between the fresh air inlet 801 and the duct, resulting in less interference during disassembly and making assembly / disassembly more convenient.

[0204] Specifically, when the connecting surface of the first common volute half 91 and the second common volute half 92 extends vertically through the axis of the exhaust fan 7, the second housing half 923 can be removed forward.

[0205] In some specific embodiments of this application, combined with Figures 6-8 As shown, the second housing half-shell 923 is also provided with a mounting port 803, through which the purification component 11 can be detachably installed in the fresh air chamber V012. This facilitates the removal of the purification component 11 when it is damaged or saturated, making it convenient for maintenance or replacement.

[0206] In some specific embodiments of this application, combined with Figure 4 As shown, in the front-rear direction of the main body 1000, the mounting port 803 is located on the front side of the main body 1000. When the purification component 11 is disassembled, it can be free from interference from the pipes connected to the fresh air inlet 801 and the exhaust outlet 902, which facilitates disassembly. For example, the front side of the housing 1 is provided with an openable panel 15. When the panel 15 is opened or rotated upward, the mounting port 803 can be exposed, which facilitates the disassembly of the purification component 11.

[0207] It is also possible that in some designs, the mounting port 803 is located at the bottom of the main body 1000. Alternatively, the mounting port 803 may be located at the top of the main body 1000.

[0208] Specifically, such as Figure 6 As shown, at least one of the first half-shell portion 913 and the second half-shell portion 923 is provided with a purified air inlet 804 for communicating with the room.

[0209] The rotation of the fresh air fan 6 allows indoor air to enter the fresh air chamber V012 through the purification inlet 804 for purification by the purification component 11. It also allows indoor air entering the fresh air chamber V012 to pass through the purification component 11, then enter the volute chamber V011, and finally enter the room through the fresh air outlet. This allows indoor air to enter the fresh air duct V01 through the purification inlet 804, undergo purification, and then enter the room through the fresh air outlet. This arrangement enables indoor air circulation when the indoor air is polluted, with purification occurring during this circulation. This allows for indoor air purification and improved cleanliness without the need to introduce outdoor fresh air. Because no outdoor fresh air is introduced, the purification process avoids the sudden influx of unheated cold or hot outdoor air, preventing discomfort caused by rapid temperature changes.

[0210] In some specific embodiments of this application, the purification air inlet 804 can be connected to the heat exchange air inlet 101. There is no need for a physical pipe to connect the purification air inlet 804 and the heat exchange air inlet 101, which reduces the number of parts, reduces the volume occupied, and facilitates layout.

[0211] In some embodiments, such as Figure 13 As shown, the exhaust fan 7 is located between the fresh air fan 6 and the heat exchange fan 41. That is, the exhaust fan 7 is closer to the heat exchange fan 41 than the fresh air fan 6. When the wall-mounted air conditioner 10000 is cooling or heating, the heat exchange fan 41 operates to drive indoor air entering the casing 1 from the heat exchange inlet 101 through the indoor heat exchanger 2. Since the exhaust fan 7 is close to the heat exchange fan 41, and the air inlet of the exhaust fan 7 is close to the air inlet of the heat exchange fan 41, the exhaust fan 7 can draw air from the air inlet of the heat exchange fan 41. In other words, when the exhaust fan 7 rotates, it can draw indoor air drawn into the casing 1 from the heat exchange inlet 101 to the exhaust fan 7, thus eliminating the need for additional holes in the casing 1 to allow separate air intake to the exhaust fan 7. This reduces the number of openings in the casing 1, simplifies the manufacturing process of the casing 1, and increases its aesthetic appeal. In addition, the heat exchange air inlet 101 is generally set to be large, so the amount of indoor air drawn into the casing 1 through the heat exchange air inlet 101 is large, which makes the air volume reaching the exhaust fan 7 also large, thus speeding up the exhaust efficiency.

[0212] Specifically, the exhaust outlet 902 is located on the side of the volute assembly facing the heat exchange fan 41. This makes the exhaust outlet 902 convenient for operators to handle during disassembly and assembly of 43.

[0213] When there is condensate on the heat exchange fan 41 and the indoor heat exchanger 2, the condensate can be drawn into the exhaust duct V02 and then discharged from the exhaust duct V02.

[0214] In some embodiments of this application, reference is made to Figures 14-16 As shown, the volute assembly includes a first volute half 81 and an exhaust volute half 9, with the exhaust volute half 9 located on the side of the first volute half 81 facing the common motor 42. The exhaust volute half 9 is detachably connected to the first volute half 81.

[0215] The volute assembly also includes a common volute 12, which includes a fresh air volute portion 121. The fresh air volute portion 121 is detachably connected to the first volute half 81, and the fresh air volute portion 121 and the first volute half 81 form part of a fresh air duct V01.

[0216] The common volute 12 includes: an exhaust volute portion 122, which is detachably connected to the exhaust volute half 9, and an exhaust duct V02 is formed within the exhaust volute portion 122 and the exhaust volute half 9.

[0217] In some embodiments, refer to Figures 14-16As shown, the fresh air volute 121 and the exhaust volute 122 can be a single piece, which reduces the number of volutes and thus reduces the assembly steps of the volute assembly. When installing the bidirectional ventilation assembly on the main body 1000, the common motor 42, heat exchange fan 41, exhaust fan 7, and fresh air fan 6 can be assembled into a motor-fan assembly first. Then, the first volute half 81 and the exhaust volute half 9 are installed on the base 3. Subsequently, the motor-fan assembly is installed on the main body 1000, so that the fresh air fan 6 is located inside the first volute half 81 and the exhaust fan 7 is located inside the exhaust volute half 9. Finally, the common volute 12 is placed over the exhaust fan 7 and the fresh air fan 6. The fresh air volute 121 is connected and fixed to the first volute half 81 with fasteners, and the exhaust volute 122 is connected and fixed to the exhaust volute half 9 with fasteners.

[0218] In other embodiments, the fresh air volute 121 and the exhaust volute 122 can be separate components. When installing the bidirectional ventilation assembly onto the main body 1000, the common motor 42, heat exchange fan 41, exhaust fan 7, and fresh air fan 6 can be assembled into a motor-fan assembly first. Then, the first volute half 81 and the exhaust volute half 9 are installed on the base. Subsequently, the motor-fan assembly is installed onto the main body 1000, such that the fresh air fan 6 is located inside the first volute half 81, and the exhaust fan 7 is located inside the exhaust volute half 9. Finally, the fresh air volute 121 is connected and fixed to the first volute half 81 with fasteners, and the exhaust volute 122 is connected and fixed to the exhaust volute half 9 with fasteners, so that the fresh air volute 121 covers the top of the fresh air fan 6, and the exhaust volute 122 covers the top of the exhaust fan 7.

[0219] Alternatively, the fastener can be a bolt, screw, etc., which can securely connect two parts.

[0220] Optionally, the fresh air volute 121 and the first volute half 81 can also be connected and fixed by a snap-fit ​​structure, and the exhaust volute 122 and the exhaust volute half 9 can also be connected and fixed by a snap-fit ​​structure.

[0221] The fresh air volute portion 121 and the first volute half 81 constitute a part of the fresh air volute. In some embodiments of this application, the exhaust volute half 9 and the exhaust volute portion 122 constitute the exhaust volute, the exhaust volute half 9 and the exhaust volute portion 122 enclose an exhaust air inlet 901, and the exhaust volute half 9 and the first volute half 81 enclose an exhaust air outlet 902.

[0222] In some embodiments, such as Figure 14As shown, a portion of the exhaust air inlet 901 is formed on the exhaust volute half 9, and another portion is formed on the exhaust volute portion 122, with the axial direction of the exhaust air inlet 901 along the length of the heat exchange fan 41. In other words, the exhaust air inlet 901 is directly opposite the axial air intake end of the exhaust fan 7, resulting in low air resistance when the exhaust fan 7 enters through the exhaust air inlet 901, which helps ensure sufficient exhaust airflow. When exhaust airflow is relatively easy to obtain, a smaller exhaust fan 7 can be selected, further reducing the size of the bidirectional ventilation assembly.

[0223] The exhaust air inlet 901 is axially oriented towards the indoor heat exchanger 2, that is, the air inlet area of ​​the exhaust air inlet 901 is oriented towards the indoor heat exchanger 2. In this way, the exhaust air inlet 901 is close to the heat exchange air inlet 101, and the air volume at the heat exchange air inlet 101 is large. Part of the air entering the casing 1 from the heat exchange air inlet 101 can enter the exhaust air duct V02 through the exhaust air inlet 901, so that the air volume at the exhaust air inlet 901 is sufficient.

[0224] The exhaust fan 7 and the fresh air fan 6 are located on the same side of the heat exchange fan 41. The exhaust fan 7 is installed within the exhaust duct V02 formed by the exhaust volute, and the fresh air fan 6 is installed within the fresh air duct V01 formed by the fresh air volute. The volute sidewalls of adjacent positions of the exhaust fan 7 and the fresh air fan 6 can simultaneously serve as the volute sidewalls of both the exhaust fan 7 and the fresh air fan 6. For example, the plate along the vertical direction of the fresh air volute portion 121 and the first volute half 81 can serve as the volute sidewall shared by the exhaust fan 7 and the fresh air fan 6, thus saving one component and improving overall integrity.

[0225] With this type of volute assembly, when it is necessary to disassemble the fresh air fan 6 and the exhaust fan 7, the common volute 12 can be removed, and then 43 can be removed. It is not necessary to disassemble the entire volute assembly, making assembly very easy.

[0226] In some embodiments of this application, reference is made to Figures 14-16 As shown, the volute assembly also includes a second volute 82, which is located on the side of the first volute half 81 away from the heat exchange fan 41, and the second volute 82 is detachably connected to the first volute half 81.

[0227] In some embodiments of this application, the second volute 82 includes a second volute half 821, which is located on the side of the first volute half 81 away from the heat exchange fan 41, and the second volute half 821 is detachably connected to the first volute half 81. An axial ventilation port 8211 is provided on the second volute half 821, and a volute cavity V011 is formed between the second volute half 821, the fresh air volute part 121 and the first volute half 81. The fresh air fan 6 is located in the volute cavity V011.

[0228] In some embodiments of this application, the second volute 82 further includes a fan cover 822, which is located on the side of the second volute half 821 away from the heat exchange fan 41, and the fan cover 822 is detachably connected to the second volute half 821. The cavity enclosed by the fan cover 822 and the second volute half 821 is the fresh air cavity V012.

[0229] In some embodiments of this application, a fresh air inlet 801 is formed on a fan cover 822, a first fresh air outlet 802 is formed by the second volute half 821 and the first volute half 81, and a second fresh air outlet 808 is formed by the second volute half 821 and the fresh air volute portion 121.

[0230] like Figure 14 and Figure 15 As shown, the first volute half 81 has a first surrounding plate 811 surrounding the radial outer side of the fresh air fan 6, and the fresh air volute part 121 has a second surrounding plate 1211 surrounding the radial outer side of the fresh air fan 6. The first surrounding plate 811 and the second surrounding plate 1211 are connected to form a fresh air volute curve. Since the fresh air fan 6 and the heat exchange fan 41 are arranged coaxially, and the outer diameter of the fresh air fan 6 is larger than the outer diameter of the heat exchange fan 41, and since the thickness of the main body 1000 is fixed, the arrangement of the fresh air fan 6 in the fresh air volute part 121 and the first volute half 81 is skewed. The fresh air fan 6 cannot be located at the center of the fresh air volute curve, which results in a reduction in the air volume ejected from the first fresh air outlet 802. Therefore, by setting a second fresh air outlet 808 above the fresh air fan 6, the air volume ejected from the fresh air volute is increased, which makes up for the defect of reduced air volume caused by the limitation of the position of the fresh air fan 6.

[0231] When the fresh air fan 6 and the heat exchange fan 41 are coaxially arranged, the axis of the fresh air fan 6 is determined. A conventional volute curve design cannot unfold, limiting the work done by the blades of the fresh air fan 6 and significantly reducing airflow. When two fresh air outlets are designed, the space required for the volute curve to unfold is half that of a single outlet. The blades of the fresh air fan 6 can then perform all their work, blowing air out from both outlets, thus increasing the airflow.

[0232] In other words, compared to a volute assembly that only has a first fresh air outlet 802, the volute assembly of this application has both a first fresh air outlet 802 and a second fresh air outlet 808, resulting in a larger air volume.

[0233] By processing the volute assembly into at least three parts—a first volute half 81, a second volute half 821, a fan cover 822, an exhaust volute half 9, and a common volute 12—the manufacturing and assembly difficulties can be reduced. Furthermore, manufacturing such a complex housing in parts facilitates quality control. The first volute half 81 is detachably connected to the exhaust volute half 9; the second volute half 821 is detachably connected to the first volute half 81; the fan cover 822 is detachably connected to the second volute half 821; and the common volute 12 is detachably connected to both the first volute half 81 and the exhaust volute half 9. This facilitates assembly and subsequent adjustments and maintenance.

[0234] In some embodiments of this application, reference is made to Figures 14-16 The wall-mounted air conditioner 10000 also includes a purification component 11, which is installed in the fresh air duct V01 to purify the fresh air blown into the room and improve the cleanliness of the indoor air.

[0235] For example, the purification component 11 is installed inside the fresh air cavity V012, and the purification component 11 is located at the axial air inlet end of the fresh air fan 6. The purification component 11 is connected to the second volute 82, which facilitates the assembly of the purification component 11 and prevents it from interfering with the fresh air fan 6. The rotation of the fresh air fan 6 allows outdoor air to enter the fresh air cavity V012 from the fresh air inlet 801, and allows the outdoor air entering the fresh air cavity V012 to be blown through the purification component 11, then into the volute cavity V011, and into the room from the fresh air outlet.

[0236] In this way, the fresh airflow can blow almost vertically over the purification component 11, further reducing the consumption of fresh air intake and thus increasing the fresh air volume. Moreover, when the indoor heat exchanger 2 is in cooling mode, causing condensation to form in the fresh air, the condensation can remain on the purification component 11 as the air flows through it, further preventing water from being blown out when the fresh air device is venting.

[0237] In some embodiments of this application, such as Figure 13 As shown, the purification component 11 includes a filter screen, which covers the axial vent 8211. The filter screen covers the entire air intake end of the fresh air fan 6, providing a large coverage area and excellent filtration efficiency. The filter screen design helps ensure sufficient contact area with the flowing air, while also being lightweight and producing low noise. For example, the filter screen may be made of HEPA mesh, thus possessing strong adsorption capacity and excellent dust filtration effect.

[0238] In some embodiments of this application, the filter screen is plate-shaped, so that the filter screen is thin overall and will not occupy too much thickness when placed in the two-way ventilation assembly.

[0239] In some embodiments of this application, the filter screen is square, which facilitates the positioning and installation of the filter screen.

[0240] In some embodiments of this application, the filter screen is a square mesh, with its side length greater than the diameter of the axial vent 8211. The square mesh is easy to position during fixing, does not easily shake 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 8211, all fresh air entering the axial vent 8211 can flow through the filter screen, resulting in high filtration cleanliness.

[0241] In some embodiments of this application, combined with Figure 14 As shown, the fan cover 822 is also provided with an installation port 803, through which the purification component 11 can be detachably installed into the fresh air chamber V012. This facilitates the removal of the purification component 11 when it is damaged or saturated, making it convenient for maintenance or replacement.

[0242] In some embodiments of this application, combined with Figure 14 and Figure 15 As shown, in the front-rear direction of the main body 1000, the mounting port 803 is located on the front side of the main body 1000. When the purification component 11 is disassembled, it can be free from interference from the pipes connected to the fresh air inlet 801 and the exhaust outlet 902, thus facilitating disassembly. For example, the front side of the housing 1 is provided with an openable opening, which can expose the mounting port 803 when opened or rotated upwards, facilitating the disassembly of the purification component 11.

[0243] It is also possible that in some designs, the mounting port 803 will be located at the bottom of the main body 1000.

[0244] In some embodiments of this application, such as Figure 15 As shown, a purification air inlet 804 for connecting to the indoor environment is formed on the second volute 82. The rotation of the fresh air fan 6 allows indoor air to enter the fresh air chamber V012 through the purification air inlet 804 for purification by the purification component 11. It also allows the indoor air entering the fresh air chamber V012 to pass through the purification component 11, then enter the volute chamber V011, and finally enter the indoor environment through the fresh air outlet. This allows indoor air to enter the fresh air duct V01 from the purification air inlet 804, undergo purification, and then enter the indoor environment through the fresh air outlet.

[0245] This design allows for air circulation and purification when indoor air is polluted. This eliminates the need to introduce fresh outdoor air, thus improving air quality. Because no fresh outdoor air is introduced, the purification process avoids sudden drafts of unheated cold or hot outdoor air, preventing discomfort caused by rapid temperature changes.

[0246] In some embodiments of this application, the purification air inlet 804 can be connected to the heat exchange air inlet 101. There is no need for a physical pipe to connect the purification air inlet 804 and the heat exchange air inlet 101, which reduces the number of parts, reduces the volume occupied, and facilitates layout.

[0247] In some embodiments of this application, such as Figure 15 As shown, the purification air inlet 804 is located at the bottom of the second volute 82 and faces downwards. It can be understood that the fresh air inlet 801 is located below the main body 1000, and both the fresh air inlet 801 and the purification air inlet 804 are located at the bottom of the fresh air volute and extend downwards, facilitating processing and shaping. Furthermore, in use, only one of them needs to be opened. Placing both the fresh air inlet 801 and the purification air inlet 804 at the bottom of the fresh air volute allows for centralized switching to select one inlet to open, reducing the number of switches required.

[0248] In some embodiments, combined with Figure 15 As shown, the air intake direction of the purification air inlet 804 is perpendicular to the length direction of the heat exchange fan 41. It can be understood that aligning the air intake direction of the purification air inlet 804 with the length direction of the heat exchange fan 41 keeps the air intake area of ​​the purification air inlet 804 further away from the exhaust air inlet 901, preventing excessive energy consumption due to their proximity. Furthermore, the different directions of the purification air inlet 804 and the exhaust air inlet 901 help expand the negative pressure area, facilitating the inflow of a large amount of indoor air into the negative pressure area and ensuring sufficient exhaust and fresh air volume.

[0249] In some embodiments of this application, the common motor 42 includes an output shaft, and the heat exchange fan 41 is fixedly connected to the output shaft. When the output shaft rotates, it drives the heat exchange fan 41 to rotate.

[0250] In some embodiments of this application, the wall-mounted air conditioner 10000 further includes a drive shaft adapted to be connected to a heat exchange fan 41, an exhaust fan 7, and a fresh air fan 6. When the output shaft drives the heat exchange fan 41 to rotate, the heat exchange fan 41 drives the exhaust fan 7 and the fresh air fan 6 to rotate synchronously via the drive shaft. Thus, a single common motor 42 drives the three fans—heat exchange fan 41, exhaust fan 7, and fresh air fan 6—to rotate, reducing the number of motors and saving costs.

[0251] In some embodiments of this application, the output shaft and the drive shaft are arranged coaxially.

[0252] In some embodiments of this application, the drive shaft is adapted to be integrally formed with one of the heat exchange fan 41, the exhaust fan 7, and the fresh air fan 6, while the other two of the heat exchange fan 41, the exhaust fan 7, and the fresh air fan 6 are fixedly mounted on the drive shaft.

[0253] For example, the drive shaft and heat exchange fan 41 are formed as a single unit, and the exhaust fan 7 and fresh air fan 6 are fixedly mounted on the drive shaft. The drive shaft and heat exchange fan 41 can be welded together or are integrally injection molded parts. The exhaust fan 7 and the drive shaft, and the fresh air fan 6 and the drive shaft can have a non-circular surface fit or an interference fit to prevent relative rotation between the exhaust fan 7 and the drive shaft, and between the fresh air fan 6 and the drive shaft.

[0254] For example, the drive shaft and exhaust fan 7 are formed as a single unit, and the heat exchange fan 41 and fresh air fan 6 are fixedly mounted on the drive shaft. The drive shaft and exhaust fan 7 can be welded together or are integrally injection molded parts. The heat exchange fan 41 and the drive shaft, and the fresh air fan 6 and the drive shaft, can have a non-circular surface fit or an interference fit to prevent relative rotation between the heat exchange fan 41 and the drive shaft, and between the fresh air fan 6 and the drive shaft.

[0255] For example, the drive shaft and the fresh air fan 6 are formed as a single unit, and the exhaust fan 7 and the heat exchange fan 41 are fixedly mounted on the drive shaft. The drive shaft and the fresh air fan 6 can be welded together or are integrally injection molded parts. The exhaust fan 7 and the drive shaft, and the heat exchange fan 41 and the drive shaft can have a non-circular surface fit or an interference fit to prevent relative rotation between the exhaust fan 7 and the drive shaft, and between the heat exchange fan 41 and the drive shaft.

[0256] In other embodiments, the drive shaft is detachably connected to the heat exchange fan 41, and the exhaust fan 7 and the fresh air fan 6 are mounted on the drive shaft. In this application, the exhaust fan 7 and the fresh air fan 6 can be a single piece, or they can be manufactured independently and then rotated synchronously by being mounted on the drive shaft.

[0257] Alternatively, the heat exchange fan 41, exhaust fan 7, and fresh air fan 6 can be separate components, manufactured independently, and then assembled onto the common motor 42. This eliminates the need for the heat exchange fan 41, exhaust fan 7, and fresh air fan 6 to be molded as a single unit, reducing manufacturing complexity. Furthermore, the quality is easier to ensure when each fan is manufactured independently, and the overall dynamic balance is also easier to maintain.

[0258] By setting a drive shaft, the drive shaft is detachably connected to the heat exchange fan 41, while the exhaust fan 7 and the fresh air fan 6 are installed and connected to the drive shaft. When maintaining the heat exchange fan 41, it is not necessary to remove the exhaust fan 7 and the fresh air fan 6, and when maintaining the exhaust fan 7 and the fresh air fan 6, it is not necessary to remove the heat exchange fan 41. This makes it convenient for disassembly and maintenance in the future.

[0259] In some embodiments of this application, such as Figure 1As shown, the wall-mounted air conditioner 10000 also includes a panel 15, one end of which is pivotally connected to the housing 1, for example, the upper end of the panel 15 is pivotally connected to the housing 1. The panel 15 is rotatable relative to the housing 1. When the panel 15 is rotated to the open position, the purification component 11 is exposed, and the user can remove the filter screen in the purification component 11. When the panel 15 is rotated to the closed position, the purification component 11 is covered. At this time, the panel 15 is an exterior component, and the wall-mounted air conditioner 10000 has a relatively clean appearance.

[0260] In some embodiments of this application, such as Figure 1 As shown, the wall-mounted air conditioner 10000 also includes a baffle plate 16, the left and right ends of which are pivotally connected to the casing 1. The baffle plate 16 is rotatable relative to the casing 1. When the baffle plate 16 is rotated to the open position, the heat exchange air outlet 102 is exposed, facilitating airflow from the heat exchange air outlet 102. When the baffle plate 16 is rotated to the closed position, the heat exchange air outlet 102 is blocked, preventing debris, flying insects, etc., from entering the interior of the wall-mounted air conditioner 10000 when it is not in operation.

[0261] Other components of the wall-mounted air conditioner 1000 according to the embodiments of the present utility model, such as the controller, are known in their structure and principle to those skilled in the art and will not be described in detail here.

[0262] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0263] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wall-mounted air conditioner (10000), comprising: a main body (1000) comprising: a casing (1) having an accommodating cavity (V1) formed inside, and a heat exchange air inlet (101) and a heat exchange air outlet (102) formed on the casing (1); a base (3) provided in the accommodating cavity (V1) and having a volute tongue air duct (V03) formed thereon; a heat exchange fan (41) provided in the volute tongue air duct (V03); characterized in that further comprising: a common motor (42) provided in the accommodating cavity (V1) and located at one end in a length direction of the heat exchange fan (41); a fresh air fan (6) which is an axial air inlet and radial air outlet centrifugal fan; an exhaust air fan (7) which is an axial air inlet and radial air outlet centrifugal fan; wherein the fresh air fan (6) and the exhaust air fan (7) are located at the other end in the length direction of the heat exchange fan (41), and the common motor (42) drives the heat exchange fan (41), the exhaust air fan (7) and the fresh air fan (6) to rotate synchronously in a working state; a volute assembly having a fresh air duct (V01) and an exhaust air duct (V02) formed therein, and a fresh air inlet (801), a fresh air outlet, an exhaust air inlet (901) and an exhaust air outlet (902) formed thereon, the fresh air inlet (801) and the fresh air outlet being in communication with the fresh air duct (V01), and the exhaust air inlet (901) and the exhaust air outlet (902) being in communication with the exhaust air duct (V02); the fresh air fan (6) is provided in the fresh air duct (V01), and rotation of the fresh air fan (6) can make outdoor air enter the fresh air duct (V01) from the fresh air inlet (801) and enter a room from the fresh air outlet; the exhaust air fan (7) is provided in the exhaust air duct (V02), and rotation of the exhaust air fan (7) can make indoor air enter the exhaust air duct (V02) from the exhaust air inlet (901) and be exhausted to the outside from the exhaust air outlet (902); the volute assembly is provided with a drainage channel (V07) in communication with the fresh air duct (V01) and the exhaust air duct (V02).

2. The wall-mounted air conditioner (10000) according to claim 1, characterized in that, the volute assembly comprises a partition wall (1207) between the fresh air duct (V01) and the exhaust air duct (V02); the drainage channel (V07) is a through hole formed on the partition wall (1207). 3.The wall-mounted air conditioner (10000) according to claim 1, wherein, the drainage channel (V07) has: a water inlet (071) in communication with the fresh air duct (V01); a water outlet (072) in communication with the exhaust air duct (V02); the water inlet (071) is located on a bottom wall of the fresh air duct (V01) or is provided adjacent to the bottom wall of the fresh air duct (V01). 4.The wall-mounted air conditioner (10000) according to claim 3, characterized in that, The water outlet (072) is located above the exhaust air outlet (902). 5.The wall-mounted air conditioner (10000) according to claim 3, characterized in that, At least part of the bottom wall of the fresh air duct (V01) gradually decreases in the direction towards the water inlet (071). 6.The wall-mounted air conditioner (10000) according to claim 1, wherein Further comprising: A purification member (11) is installed in the fresh air duct (V01), and the fresh air fan (6) rotates to blow outdoor air from the fresh air inlet (801) through the purification member (11), into the fresh air fan (6), and into the room from the fresh air outlet. 7.The wall-mounted air conditioner (10000) according to claim 6, characterized in that, The drain channel (V07) is located on the side of the purification member (11) away from the fresh air fan (6).

8. The wall-mounted air conditioner (10000) according to any one of claims 1-7, characterized in that, The fresh air fan (6) is located between the exhaust air fan (7) and the heat exchange fan (41). The volute assembly comprises: A first common volute half (91) comprises: A first exhaust air half (911); A second common volute half (92) is detachably connected with the first common volute half (91), and comprises: A second exhaust air half (921) forms the exhaust air duct (V02) together with the first exhaust air half (911); A first fresh air volute half (85) is arranged on the side of the first common volute half (91) facing the heat exchange fan (41); A second fresh air volute half (86) is arranged on the side of the second common volute half (92) facing the heat exchange fan (41), is detachably connected with the first fresh air volute half (85), and forms at least part of the fresh air duct (V01) together with the first fresh air volute half (85).

9. The wall-mounted air conditioner (10000) according to claim 8, wherein The first common volute half (91) further comprises: A first casing half (913) is arranged between the first exhaust air half (911) and the first fresh air volute half (85); The second common volute half (92) further comprises: A second casing half (923) is arranged between the second exhaust air half (921) and the second fresh air volute half (86), and is detachably connected with the first casing half (913); The fresh air duct (V01) comprises a volute cavity (V011) and a fresh air cavity (V012) connected with each other, and the fresh air cavity (V012) is formed between the first casing half (913) and the second casing half (923); The first casing half (913), the second casing half (923), the first fresh air volute half (85), and the second fresh air volute half (86) enclose the volute cavity (V011), and the fresh air fan (6) is located in the volute cavity (V011). 10.The wall-mounted air conditioner (10000) according to claim 9, characterized in that, The first common volute half (91) further comprises: A first fresh air half shell (915) is arranged on the side of the first shroud half (913) facing the heat exchange fan (41), and the first fresh air half shell (915) encloses a second fresh air outlet (808) with the second fresh air volute half (86). The second common volute half (92) further comprises: A second fresh air half shell (925) is arranged on the side of the second shroud half (923) facing the heat exchange fan (41), and the second fresh air half shell (925) encloses a first fresh air outlet (802) with the first fresh air volute half (85). 11.The wall-mounted air conditioner (10000) according to any one of claims 1-7, characterized in that, The exhaust fan (7) is located between the fresh air fan (6) and the heat exchange fan (41); The volute assembly comprises: A first volute half (81); An exhaust volute half (9) is located on the side of the first volute half (81) facing the common motor (42); A common volute (12) comprises: A fresh air volute part (121) is detachably connected with the first volute half (81), and the fresh air volute part (121) forms a part of the fresh air duct (V01) in the first volute half (81); An exhaust volute part (122) is detachably connected with the exhaust volute half (9), and the exhaust volute part (122) forms the exhaust air duct (V02) in the exhaust volute half (9). 12.The wall-mounted air conditioner (10000) according to claim 11, characterized in that, The volute assembly further comprises: A second volute (82) is located on the side of the first volute half (81) away from the heat exchange fan (41), and the second volute (82) is detachably connected with the first volute half (81). 13.The wall-mounted air conditioner (10000) according to claim 12, characterized in that, The second volute (82) comprises: A second volute half (821) is located on the side of the first volute half (81) away from the heat exchange fan (41), and the second volute half (821) is detachably connected with the first volute half (81), and the second volute half (821) is provided with an axial air vent (8211), and a volute cavity (V011) is formed between the second volute half (821), the fresh air volute part (121) and the first volute half (81), and the fresh air fan (6) is located in the volute cavity (V011). 14.The wall-mounted air conditioner (10000) according to claim 13, wherein, The second volute (82) further comprises: A fan cover (822) is located on the side of the second volute half (821) away from the heat exchange fan (41), and the fan cover (822) is detachably connected with the second volute half (821), and the cavity enclosed by the fan cover (822) and the second volute half (821) is a fresh air cavity (V012).

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