Air conditioner

Abstract

The application discloses an air conditioner, which comprises a fan assembly and a fresh air component, the fan assembly comprises a cross-flow fan wheel, the axial direction of the cross-flow fan wheel is a first direction, the fresh air component and the fan assembly are arranged in sequence along the first direction, the fresh air component comprises a first shell, the first shell is an integrated structure, and the first shell defines a wind channel cavity and an electric control cavity which are arranged at intervals, and a circuit board is arranged in the electric control cavity. Thus, the wind channel cavity and the electric control cavity are arranged on the integrated first shell, the electric control cavity is used for mounting the circuit board, and the wind channel cavity is used for circulating fresh air, so that the fresh air component can have the functions of fresh air and electric control, integrated arrangement is realized, the space in the air conditioner can be fully utilized, and the overall size of the air conditioner is reduced.

Description

Technical Field

[0001] This invention relates to the field of air conditioners, and more particularly to an air conditioner. Background Technology

[0002] In related technologies, the fresh air module and electrical control module of the air conditioning unit are placed at opposite ends of the fan along the axial direction, resulting in a larger size of the air conditioner in that direction, making installation inconvenient and leaving room for improvement. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an air conditioner in which the fresh air component can combine fresh air function and electronic control function, achieving integrated arrangement, which is conducive to making full use of the space inside the air conditioner and reducing the overall size of the air conditioner.

[0004] An air conditioner according to an embodiment of the present invention includes: a fan assembly, the fan assembly including a cross-flow impeller, the axial direction of the cross-flow impeller being a first direction; and a fresh air component, the fresh air component and the fan assembly being arranged sequentially along the first direction, the fresh air component including a first housing, the first housing being an integrated structure and defining a spaced-apart air duct cavity and an electrical control cavity, the electrical control cavity being provided with a circuit board.

[0005] According to an embodiment of the present invention, an air conditioner is provided with an air duct cavity and an electrical control cavity on an integrated first housing. The electrical control cavity is used to install a circuit board, and the air duct cavity is used to circulate fresh air. This allows the fresh air component to have both fresh air function and electrical control function, achieving integrated arrangement, which is beneficial to make full use of the space inside the air conditioner and reduce the overall size of the air conditioner.

[0006] According to some embodiments of the present invention, the air conditioner includes a fan assembly for driving the cross-flow fan wheel to rotate, and the drive motor is located at one end of the cross-flow fan wheel in the first direction near the fresh air component, the first housing defines a clearance space, and at least a portion of the drive motor is located in the clearance space.

[0007] According to some embodiments of the air conditioner of the present invention, the first housing includes a duct shell portion and an electrical control box portion, the duct shell portion defining the duct cavity, and the electrical control box portion defining the electrical control cavity; the electrical control box portion protrudes from the duct shell portion in the direction toward the fan assembly, so as to jointly define, together with the duct shell portion, the clearance space located on the side of the duct shell portion toward the fan assembly.

[0008] According to some embodiments of the present invention, the air conditioner is a wall-mounted air conditioner, the first direction is a left-right direction, the electrical control box includes an upper box connected to the top of the air duct shell and a front box connected to the front side of the air duct shell, the clearance space is defined on the side of the air duct shell facing the fan assembly and located below the upper box and behind the front box, the electrical control cavity includes a first sub-cavity open at the front defined by the upper box and a second sub-cavity open at the front defined by the front box, the circuit board includes a high-voltage board disposed in one of the first sub-cavity and the second sub-cavity, and a low-voltage board disposed in the other of the first sub-cavity and the second sub-cavity.

[0009] According to some embodiments of the air conditioner of the present invention, the first housing includes a common plate that separates the air duct cavity and the electrical control cavity, and defines both the wall of the air duct housing and the wall of the electrical control box.

[0010] According to some embodiments of the air conditioner of the present invention, the bottom wall of the upper box portion and the top wall of the air duct shell portion share the same plate; and / or, the rear wall of the front box portion and the front wall of the air duct shell portion share the same plate.

[0011] According to some embodiments of the air conditioner of the present invention, both the upper box portion and the front box portion are formed into a flat box shape with a length greater than its width and a width greater than its thickness. The length direction of the upper box portion is the front-to-back direction, the width direction is the up-and-down direction, and the thickness direction is the left-to-right direction. The length direction of the front box portion is the up-and-down direction, the width direction is the left-to-right direction, and the thickness direction is the front-to-back direction.

[0012] According to some embodiments of the air conditioner of the present invention, a wire-passing hole is formed on the side wall of the front end of the upper box portion and the side wall of the front end of the front box portion; and / or, the fresh air component further includes: a box cover, the box cover being disposed on the front side of the first housing and covering the front end of the first sub-cavity and the front end of the second sub-cavity.

[0013] According to some embodiments of the air conditioner of the present invention, the first housing includes a duct housing portion and an electrical control box portion, the duct housing portion defining the duct cavity, and the electrical control box portion defining the electrical control cavity; a wire through hole is formed on the side wall of the electrical control box portion.

[0014] According to some embodiments of the air conditioner of the present invention, the first housing is a one-piece molded part.

[0015] According to some embodiments of the present invention, the first housing includes a duct housing portion and an electrical control box portion, the duct housing portion defining the duct cavity and the electrical control box portion defining the electrical control cavity; the air conditioner further includes a fireproof sheet metal, the fireproof sheet metal being disposed outside the electrical control box portion and avoiding the duct housing portion.

[0016] According to some embodiments of the air conditioner of the present invention, the fresh air component further includes a second housing and a third housing, the second housing being disposed on the side of the first housing away from the fan assembly, the third housing being disposed on the side of the second housing away from the first housing, an air inlet cavity being formed between the first housing and the second housing, the air duct cavity constituting at least a portion of the air inlet cavity, an air outlet cavity being formed between the second housing and the third housing, a vent being formed on the second housing communicating with the air inlet cavity and the air outlet cavity, the fresh air component including a purification module disposed in the air inlet cavity and a fresh air fan disposed in the air outlet cavity, and a fresh air inlet communicating with the air inlet cavity being formed on at least one of the first housing and the second housing.

[0017] According to some embodiments of the air conditioner of the present invention, the first housing includes a duct housing portion and an electrical control box portion, the duct housing portion defining the duct cavity, and the electrical control box portion defining the electrical control cavity; the air outlet cavity includes an air outlet duct, the second housing includes a first air outlet wall participating in defining the air outlet duct, and the third housing includes a second air outlet wall participating in defining the air outlet duct, the first air outlet wall being disposed opposite to at least a portion of the electrical control box portion; wherein, a first silencing hole is formed on the first air outlet wall, and the fresh air component further includes a first silencing shell, the first silencing shell being sandwiched between the electrical control box portion and the first air outlet wall; and / or, a second silencing hole is formed on the second air outlet wall, and the fresh air component further includes a second silencing shell, the second silencing shell being covering the side of the second air outlet wall away from the first air outlet wall.

[0018] Additional aspects and advantages of the 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

[0019] Figure 1 This is a schematic diagram of an air conditioner according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of an air conditioner according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram illustrating the cooperation between the fresh air component and the drive motor according to an embodiment of the present invention;

[0022] Figure 4This is a cross-sectional view of the fresh air component according to an embodiment of the present invention;

[0023] Figure 5 This is an exploded view of a fresh air component according to an embodiment of the present invention.

[0024] Figure label:

[0025] Air conditioner 100, first direction F1,

[0026] Fan assembly 1, cross-flow fan 11, drive motor 12,

[0027] Fresh air component 2, first housing 21, duct housing 211, electrical control box 212, upper box 2121, front box 2122.

[0028] Air duct cavity 213, electrical control cavity 214, first sub-cavity 2141, second sub-cavity 2142, clearance space 215, wiring hole 216, common plate 217.

[0029] Second housing 22, first air outlet wall 221, first silencer hole 222, vent 223, fresh air inlet 224.

[0030] Third housing 23, second air outlet wall 231, second silencing hole 232, first silencing shell 24, second silencing shell 25.

[0031] Circuit board 26, high-voltage board 261, low-voltage board 262, cover 27, air outlet 28, air outlet duct 281, air inlet 29.

[0032] 3. Fireproof sheet metal; 4. Fresh air duct connector. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0035] Hereinafter, with reference to the accompanying drawings, an air conditioner 100 according to an embodiment of the present invention will be described.

[0036] like Figures 1-5 As shown, the air conditioner 100 according to an embodiment of the present invention includes: a fan assembly 1 and a fresh air component 2. The fan assembly 1 includes a cross-flow fan wheel 11, the axial direction of which is a first direction F1. The fresh air component 2 and the fan assembly 1 are arranged sequentially along the first direction F1. The fresh air component 2 includes a first housing 21, which is an integrated structure and defines an air duct cavity 213 and an electrical control cavity 214 that are spaced apart. The electrical control cavity 214 is provided with a circuit board 26.

[0037] As a result, the fresh air component 2 can have both fresh air function and electronic control function, achieving integrated layout, which is conducive to making full use of the space inside the air conditioner 100 and reducing the overall size of the air conditioner 100.

[0038] First, such as Figures 1-4 As shown, the air conditioner 100 includes a fan assembly 1 and a fresh air component 2. The fan assembly 1 includes a cross-flow fan 11, the axis of which is in a first direction F1, and the cross-flow fan 11 is used to direct airflow outward when rotating.

[0039] The fresh air component 2 and the fan assembly 1 are arranged sequentially along the first direction F1. The fresh air component 2 includes a first housing 21, which is an integrated structure. The first housing 21 defines an air duct cavity 213 and an electrical control cavity 214, which are spaced apart. It should be noted that "integrated" means that it cannot be separated and is fixed as one piece. The first housing 21 can be integrally formed or it can be formed from multiple parts and then connected into one piece by welding or bonding.

[0040] The electrical control cavity 214 is equipped with a circuit board 26, which is electrically connected to related components (such as the drive motor 12 and the fresh air fan described below) to control the air conditioner 100 so that the fresh air component 2 can realize the electrical control function; at the same time, the air duct cavity 213 can be connected to the outdoor space to circulate fresh air so that the fresh air component 2 can realize the fresh air function.

[0041] The above setup enables integrated layout, making full use of the space inside the air conditioner 100, achieving miniaturized design of the air conditioner 100, and shortening the distance between the circuit board 26 and related components, which helps to shorten connecting wires, reduce costs, and improve assembly efficiency.

[0042] According to an embodiment of the present invention, the air conditioner 100 has an air duct cavity 213 and an electrical control cavity 214 provided in the first housing 21. The electrical control cavity 214 is used to install the circuit board 26, and the air duct cavity 213 is used to circulate fresh air. This allows the fresh air component 2 to have both fresh air function and electrical control function, realizing integrated arrangement, which is conducive to making full use of the space inside the air conditioner 100 and reducing the overall size of the air conditioner 100.

[0043] In some embodiments of the present invention, the fan assembly 1 includes a drive motor 12 for driving the cross-flow fan 11 to rotate, and the drive motor 12 is located at one end of the cross-flow fan 11 in a first direction F1 near the fresh air component 2, and the first housing 21 defines a clearance space 215, at least a portion of the drive motor 12 is located in the clearance space 215.

[0044] For example, refer to Figures 2-4 As shown, the fan assembly 1 includes a drive motor 12, which is located at the end of the cross-flow fan 11 in the first direction F1 near the fresh air component 2. The drive motor 12 is poweredly connected to the cross-flow fan 11 so that it can drive the cross-flow fan 11 to rotate. The first housing 21 defines a clearance space 215 corresponding to the drive motor 12, and at least a portion of the drive motor 12 is located within the clearance space 215, allowing the first housing 21 to avoid the drive motor 12. This allows for full utilization of the space within the air conditioner 100, facilitating a miniaturized design of the air conditioner 100.

[0045] In some embodiments of the present invention, such as Figures 3-5 As shown, the first housing 21 includes a duct housing portion 211 and an electrical control box portion 212. The duct housing portion 211 defines an air duct cavity 213, and the electrical control box portion 212 defines an electrical control cavity 214. The electrical control box portion 212 may be configured to protrude from the duct housing portion 211 in the direction toward the fan assembly 1. The electrical control box portion 212 and the duct housing portion 211 together define a clearance space 215. The clearance space 215 is located on the side of the duct housing portion 211 facing the fan assembly 1 and is used to accommodate at least a portion of the drive motor 12. This allows for a more compact layout of the air conditioner 100.

[0046] In some embodiments of the present invention, the air conditioner 100 is a wall-mounted air conditioner, and the first direction F1 is the left-right direction. The electrical control box 212 includes an upper box 2121 connected to the top of the air duct shell 211, and a front box 2122 connected to the front side of the air duct shell 211. The clearance space 215 is defined on the side of the air duct shell 211 facing the fan assembly 1 and located below the upper box 2121 and behind the front box 2122. The electrical control cavity 214 includes a first sub-cavity 2141 defined by the upper box 2121 and a second sub-cavity 2142 defined by the front box 2122. The circuit board 26 includes a high-voltage board 261 disposed in one of the first sub-cavity 2141 and the second sub-cavity 2142, and a low-voltage board 262 disposed in the other of the first sub-cavity 2141 and the second sub-cavity 2142.

[0047] For example, refer to Figures 1-5 As shown, the air conditioner 100 is configured as a wall-mounted air conditioner, and the first direction F1 is set to... Figure 1 The left and right directions are shown. The electrical control box 212 includes an upper box 2121 and a front box 2122. The upper box 2121 is connected to the top of the air duct shell 211, and the front box 2122 is connected to the front side of the air duct shell 211. The side of the air duct shell 211 facing the fan assembly 1, the lower side of the upper box 2121, and the rear side of the front box 2122 together define a clearance space 215.

[0048] The electronic control cavity 214 includes a first sub-cavity 2141 and a second sub-cavity 2142. The first sub-cavity 2141, which is open at the front, is defined by the upper housing portion 2121, and the second sub-cavity 2142, which is open at the front, is defined by the front housing portion 2122. The circuit board 26 includes a high-voltage board 261 and a low-voltage board 262. The high-voltage board 261 is disposed in one of the first sub-cavity 2141 and the second sub-cavity 2142, and the low-voltage board 262 is disposed in the other of the first sub-cavity 2141 and the second sub-cavity 2142. Exemplarily, the high-voltage board 261 can be disposed in the first sub-cavity 2141, and the low-voltage board 262 can be disposed in the second sub-cavity 2142; or, the low-voltage board 262 can be disposed in the first sub-cavity 2141, and the high-voltage board 261 can be disposed in the second sub-cavity 2142. The present invention does not limit this.

[0049] The above settings can maintain a sufficient distance between the high-voltage board 261 and the low-voltage board 262, which is conducive to the separation of high and low voltage circuits and improves the safety of the air conditioner 100.

[0050] In some embodiments of the present invention, such as Figure 3 and Figure 5As shown, the first housing 21 includes a common plate 217, which separates the air duct cavity 213 and the electrical control cavity 214. The common plate 217 can define both the wall of the air duct housing 211 and the wall of the electrical control box 212. This allows for a more compact layout, miniaturized design, and cost savings.

[0051] In some embodiments of the present invention, such as Figure 5 As shown, the bottom wall of the upper box portion 2121 and the top wall of the air duct shell portion 211 can share the same plate. This allows for a more compact layout, facilitates miniaturization, and saves on material costs.

[0052] In some embodiments of the present invention, such as Figure 5 As shown, the rear wall of the front box portion 2122 and the front wall of the air duct shell portion 211 can share the same plate. This allows for a more compact layout, facilitates miniaturization, and saves on material costs.

[0053] In some embodiments of the present invention, such as Figure 3 and Figure 5 As shown, both the upper box portion 2121 and the front box portion 2122 can be configured as flat boxes with a length greater than their width and a width greater than their thickness. Specifically, the length direction of the upper box portion 2121 can be configured as the front-to-back direction, the width direction as the up-down direction, and the thickness direction as the left-to-right direction; similarly, the length direction of the front box portion 2122 can be configured as the up-to-down direction, the width direction as the left-to-right direction, and the thickness direction as the front-to-back direction.

[0054] With the above settings, the size of the open space 215 can be larger, which is conducive to better accommodating the drive motor 12, and the size of the fresh air component 2 in the left and right directions can be smaller, which is conducive to reducing the overall size of the air conditioner 100.

[0055] In some embodiments of the present invention, wiring holes 216 are formed on the front side wall of the upper box portion 2121 and the front side wall of the front portion 2122. Connecting wires are passed through the wiring holes 216 and are used to electrically connect the high-voltage board 261 and the low-voltage board 262 to related components. It is understood that by providing the wiring holes 216 at the front end of the electrical control box portion 212, the arrangement of connecting wires can be made more convenient, which helps to reduce the assembly difficulty of the air conditioner 100.

[0056] In some embodiments of the present invention, such as Figure 2As shown, the fresh air component 2 also includes a cover 27, which is located on the front side of the first housing 21 and is used to cover the front end of the first sub-cavity 2141 and the front end of the second sub-cavity 2142. This design simplifies the structure of the fresh air component 2 and allows the first sub-cavity 2141 and the second sub-cavity 2142 to be opened and closed simultaneously with a single action, thus reducing the assembly difficulty of the air conditioner 100.

[0057] In some embodiments of the present invention, such as Figures 3-5 As shown, the first housing 21 includes a duct housing 211 and an electrical control box 212. The duct housing 211 defines an air duct cavity 213, and the electrical control box 212 defines an electrical control cavity 214. A wire-passing hole 216 is formed on the side wall of the electrical control box 212. A connecting wire is passed through the wire-passing hole 216 to connect the circuit board 26 to related components (such as the drive motor 12, the fresh air motor, etc.). This standardizes the arrangement of the connecting wires and improves the design rationality of the air conditioner 100.

[0058] In some embodiments of the present invention, the first housing 21 can be constructed as a single-piece molded part. This reduces the molding difficulty of the first housing 21, ensures its structural stability, and improves the overall performance of the air conditioner 100.

[0059] In some embodiments of the present invention, such as Figure 2 and Figure 5 As shown, the first housing 21 includes a duct housing 211 and an electrical control box 212. The duct housing 211 defines a duct cavity 213, and the electrical control box 212 defines an electrical control cavity 214. Meanwhile, the air conditioner 100 also includes a fireproof sheet metal 3, which covers the electrical control box 212 and avoids the duct housing 211.

[0060] Understandably, when the circuit board 26 inside the electrical control cavity 214 catches fire, the fireproof sheet metal 3 can isolate the fire inside the electrical control cavity 214, thereby delaying or eliminating the spread of the fire and improving the safety of the air conditioner 100. In addition, by setting the fireproof sheet metal 3 to avoid the air duct shell 211, materials can be saved.

[0061] In some embodiments of the present invention, the fresh air component 2 further includes a second housing 22 and a third housing 23. The second housing 22 is disposed on the side of the first housing 21 away from the fan assembly 1, and the third housing 23 is disposed on the side of the second housing 22 away from the first housing 21. An air inlet cavity 29 is formed between the first housing 21 and the second housing 22. An air duct cavity 213 constitutes at least a portion of the air inlet cavity 29. An air outlet cavity 28 is formed between the second housing 22 and the third housing 23. A vent 223 communicating between the air inlet cavity 29 and the air outlet cavity 28 is formed on the second housing 22. The fresh air component 2 includes a purification module disposed in the air inlet cavity 29 and a fresh air fan disposed in the air outlet cavity 28. At least one of the first housing 21 and the second housing 22 has a fresh air inlet 224 communicating with the air inlet cavity 29.

[0062] For example, refer to Figures 3-5 As shown, the fresh air component 2 also includes a second housing 22 and a third housing 23. The second housing 22 is located on the side of the first housing 21 away from the fan assembly 1, and the third housing 23 is located on the side of the second housing 22 away from the first housing 21. An air inlet cavity 29 is formed between the first housing 21 and the second housing 22, and an air duct cavity 213 constitutes at least a portion of the air inlet cavity 29. An air outlet cavity 28 is formed between the second housing 22 and the third housing 23, and the air outlet cavity 28 communicates with the indoor space. A vent 223 is formed on the second housing 22, which connects the air inlet cavity 29 and the air outlet cavity 28.

[0063] Meanwhile, the fresh air component 2 includes a purification module and a fresh air fan. The purification module is located in the air inlet chamber 29, and the fresh air fan is located in the air outlet chamber 28. At least one of the first housing 21 and the second housing 22 has a fresh air inlet 224 for connecting the air inlet chamber 29 to the outdoor environment. Exemplarily, the fresh air inlet 224 may be formed on the second housing 22. Exemplarily, the air conditioner 100 may also include a fresh air duct connector 4 installed at the fresh air inlet 224 for connecting a fresh air duct to the outside environment.

[0064] It should be noted that the type of purification module (not shown in the figure) is not limited, such as HEPA filter, filter and other air purification components, and there are no restrictions here.

[0065] Specifically, when the air conditioner 100 switches to fresh air mode, it can drive the fresh air fan to operate, and the fresh air flow can flow into the air inlet cavity 29 from the fresh air inlet 224. The purification module filters and purifies the fresh air flow, and the purified fresh air flow can flow into the air outlet cavity 28 through the vent 223 and flow out of the air outlet cavity 28 into the indoor space.

[0066] The above settings make the overall structure of the fresh air component 2 more compact, which is conducive to the miniaturization of the air conditioner 100 and can avoid mutual interference between the fresh air fan and the drive motor 12, thus improving the operational stability of the air conditioner 100.

[0067] In some embodiments of the present invention, the first housing 21 includes a duct housing portion 211 and an electrical control box portion 212, the duct housing portion 211 defining an duct cavity 213, and the electrical control box portion 212 defining an electrical control cavity 214; the air outlet cavity 28 includes an air outlet duct 281, the second housing 22 includes a first air outlet wall 221 that participates in defining the air outlet duct 281, and the third housing 23 includes a second air outlet wall 231 that participates in defining the air outlet duct 281. The first air outlet wall 221 and the electrical control box... At least a portion of part 212 is disposed opposite to each other; wherein, a first silencing hole 222 is formed on the first air outlet wall 221, and the fresh air component 2 further includes a first silencing shell 24, which is sandwiched between the electrical control box part 212 and the first air outlet wall 221; and / or, a second silencing hole 232 is formed on the second air outlet wall 231, and the fresh air component 2 further includes a second silencing shell 25, which covers the side of the second air outlet wall 231 away from the first air outlet wall 221.

[0068] For example, refer to Figures 3-5 As shown, the first housing 21 includes a duct housing portion 211 and an electrical control box portion 212. The duct housing portion 211 defines an air duct cavity 213, and the electrical control box portion 212 defines an electrical control cavity 214. The air outlet cavity 28 includes an air outlet duct 281, which is located above the second housing 22. The second housing 22 includes a first air outlet wall 221 and a second air outlet wall 231, which together define the air outlet duct 281. The air outlet duct 281 connects the air outlet cavity 28 to the indoor space. Simultaneously, as... Figure 3 As shown, the first air outlet wall 221 can be arranged opposite to at least a portion of the electrical control box 212 in the left-right direction to make fuller use of the space inside the air conditioner 100.

[0069] The first air outlet wall 221 may be provided with a first silencing hole 222, and there may be multiple first silencing holes 222, which are spaced apart. The fresh air component 2 also includes a first silencing shell 24, which is sandwiched between the electrical control box 212 and the first air outlet wall 221. A first silencing cavity is defined between the first silencing shell 24 and the first air outlet wall 221, and the air outlet duct 281 communicates with the first silencing cavity through the first silencing hole 222.

[0070] Meanwhile, a second silencing hole 232 can be formed on the second air outlet wall 231, and multiple second silencing holes 232 are spaced apart. The fresh air component 2 also includes a second silencing shell 25, which covers the side of the second air outlet wall 231 away from the first air outlet wall 221. A second silencing cavity is defined between the second silencing shell 25 and the second air outlet wall 231, and the air outlet duct 281 communicates with the second silencing cavity through the second silencing hole 232.

[0071] With the above settings, when the airflow passes through the air outlet duct 281 and blows outward, the noise can flow into the first and second silencing chambers respectively to achieve noise reduction, which helps to reduce the overall noise of the air conditioner 100 and improve the user's comfort.

[0072] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0074] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0075] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although embodiments of the 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 invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that, include: A fan assembly, the fan assembly including a cross-flow impeller, the axial direction of the cross-flow impeller being a first direction; The fresh air component and the fan assembly are arranged sequentially along the first direction. The fresh air component includes a first housing, which is an integrated structure and defines a spaced-apart air duct cavity and an electrical control cavity. The electrical control cavity is equipped with a circuit board.

2. The air conditioner according to claim 1, characterized in that, The fan assembly includes a drive motor for driving the cross-flow fan wheel to rotate, and the drive motor is located at one end of the cross-flow fan wheel in the first direction near the fresh air component. The first housing defines a clearance space, and at least a portion of the drive motor is located in the clearance space.

3. The air conditioner according to claim 2, characterized in that, The first housing includes a duct shell portion and an electrical control box portion. The duct shell portion defines the duct cavity, and the electrical control box portion defines the electrical control cavity. The electrical control box portion protrudes from the duct shell portion toward the fan assembly, so as to define, together with the duct shell portion, the clearance space located on the side of the duct shell portion toward the fan assembly.

4. The air conditioner according to claim 3, characterized in that, The air conditioner is a wall-mounted air conditioner, the first direction is the left-right direction, the electrical control box includes an upper box connected to the top of the air duct shell and a front box connected to the front side of the air duct shell, the clearance space is defined on the side of the air duct shell facing the fan assembly and located below the upper box and behind the front box, the electrical control cavity includes a first sub-cavity defined by the upper box and a second sub-cavity defined by the front box, the circuit board includes a high-voltage board disposed in one of the first sub-cavity and the second sub-cavity, and a low-voltage board disposed in the other of the first sub-cavity and the second sub-cavity.

5. The air conditioner according to claim 3, characterized in that, The first housing includes a common plate that separates the air duct cavity and the electrical control cavity, and defines both the wall of the air duct housing and the wall of the electrical control box.

6. The air conditioner according to claim 4, characterized in that, The bottom wall of the upper box portion and the top wall of the air duct shell portion share the same plate; and / or, the rear wall of the front box portion and the front wall of the air duct shell portion share the same plate.

7. The air conditioner according to claim 4, characterized in that, Both the upper box portion and the front box portion are formed into a flat box shape with a length greater than its width and a width greater than its thickness. The length direction of the upper box portion is the front-to-back direction, the width direction is the up-and-down direction, and the thickness direction is the left-to-right direction. The length direction of the front box portion is the up-and-down direction, the width direction is the left-to-right direction, and the thickness direction is the front-to-back direction.

8. The air conditioner according to claim 4, characterized in that, A wire-passing hole is formed on the side wall of the front end of the upper box and the side wall of the front end of the front box; and / or, the fresh air component further includes: a box cover, which is disposed on the front side of the first housing and covers the front end of the first sub-cavity and the front end of the second sub-cavity.

9. The air conditioner according to claim 1, characterized in that, The first housing includes an air duct housing and an electrical control box housing. The air duct housing defines the air duct cavity, and the electrical control box housing defines the electrical control cavity. A wire through hole is formed on the side wall of the electrical control box housing.

10. The air conditioner according to claim 1, characterized in that, The first housing is a one-piece molded part.

11. The air conditioner according to claim 1, characterized in that, The first housing includes a duct housing and an electrical control box, the duct housing defining the duct cavity and the electrical control box defining the electrical control cavity; the air conditioner also includes a fireproof sheet metal, which is disposed outside the electrical control box and avoids the duct housing.

12. The air conditioner according to claim 1, characterized in that, The fresh air component further includes a second housing and a third housing. The second housing is located on the side of the first housing away from the fan assembly, and the third housing is located on the side of the second housing away from the first housing. An air inlet cavity is formed between the first housing and the second housing. The air duct cavity constitutes at least a part of the air inlet cavity. An air outlet cavity is formed between the second housing and the third housing. A vent is formed on the second housing that communicates with the air inlet cavity and the air outlet cavity. The fresh air component includes a purification module located in the air inlet cavity and a fresh air fan located in the air outlet cavity. At least one of the first housing and the second housing has a fresh air inlet that communicates with the air inlet cavity.

13. The air conditioner according to claim 12, characterized in that, The first housing includes a duct housing portion and an electrical control box portion, the duct housing portion defining the duct cavity, and the electrical control box portion defining the electrical control cavity; the air outlet cavity includes an air outlet duct, the second housing includes a first air outlet wall participating in defining the air outlet duct, and the third housing includes a second air outlet wall participating in defining the air outlet duct, wherein the first air outlet wall is disposed opposite to at least a portion of the electrical control box portion; The first air outlet wall has a first silencing hole, and the fresh air component also includes a first silencing shell, which is sandwiched between the electrical control box and the first air outlet wall. And / or, a second silencing hole is formed on the second air outlet wall, and the fresh air component further includes a second silencing shell, which is disposed on the side of the second air outlet wall away from the first air outlet wall.

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