Air conditioner

Abstract

The air conditioner comprises a fresh air module, the fresh air module comprises an air inlet frame, a fan assembly, a filter assembly and a first air inlet grille, an air inlet duct is defined by the air inlet frame, the fan assembly comprises a volute, the volute is connected with the air inlet frame, a mounting cavity is defined between the volute and the air inlet frame, or the mounting cavity is defined by the air inlet frame, and the filter assembly is arranged in the mounting cavity. The installation cavity is provided with a drawing opening, the filtering assembly is installed in the installation cavity in a drawing mode through the drawing opening, the first air inlet grille is arranged at the air inlet and comprises a first grille area and a second grille area, the first grille area is adjacent to the drawing opening relative to the second grille area, and a plurality of first grille holes are formed in the first grille area of the first air inlet grille. A plurality of second grating holes are formed in the second grating area, and the minimum size of the first grating holes in the radial direction is smaller than the minimum size of the second grating holes in the radial direction. In this way, fingers are not prone to extending into the fan assembly from the multiple first grating holes to make contact with the internal structure of the fan assembly and be cut.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioner. Background Technology

[0002] With the continuous development of air conditioning technology, some air conditioners have incorporated fresh air modules to improve indoor air quality. To prevent the introduced fresh air from polluting the indoor environment, filter components are usually installed in the fresh air module. After prolonged use, these filter components gradually accumulate dust.

[0003] To address this, some technologies incorporate pull-out vents on the fresh air module, allowing users to remove and clean or replace the filter components. However, during this process, users may accidentally insert their fingers into the vent and come into contact with moving parts such as the fan impeller, resulting in cuts. Therefore, the safety of the air conditioner needs improvement. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an air conditioner in which the minimum radial dimension of a plurality of first grille holes adjacent to the pull-out opening of the fresh air module is smaller than the minimum radial dimension of a plurality of second grille holes. Even if a user inserts their finger into the pull-out opening, it is difficult for them to contact the fan blades through the plurality of first grille holes, thereby improving the safety of the fresh air module.

[0005] According to an embodiment of the present invention, the air conditioner includes a fresh air module, which includes an air inlet frame, a fan assembly, a filter assembly, and a first air inlet grille. The air inlet frame defines an air inlet duct with a fresh air inlet. The fan assembly includes a volute connected to the air inlet frame. A mounting cavity is defined between the volute and the air inlet frame, or the air inlet frame defines a mounting cavity. The air inlet of the volute communicates with the air inlet duct through the mounting cavity. The mounting cavity has a pull-out opening. The filter assembly is removably mounted in the mounting cavity through the pull-out opening. The first air inlet grille is located at the air inlet and includes a first grille area and a second grille area. The first grille area is adjacent to the pull-out opening relative to the second grille area. The first air inlet grille forms a plurality of first grille holes in the first grille area and a plurality of second grille holes in the second grille area. The minimum radial dimension of the first grille hole is smaller than the minimum radial dimension of the second grille hole.

[0006] According to the embodiment of the present invention, the air conditioner filter assembly is removably installed in the mounting cavity via a pull-out port, allowing the user to clean or replace the filter assembly. The first air inlet grille is located at the air inlet, and compared to the second grille area, the first grille area is adjacent to the pull-out port. At the same time, the minimum radial dimension of the plurality of first grille holes is smaller than the minimum radial dimension of the plurality of second grille holes, so that it is not easy for the user's fingers to reach into the second grille holes from the pull-out port, and it is not easy for the fingers to reach into the first grille holes and contact the internal structure of the fan assembly, thereby causing cuts, thus improving the safety of the fresh air module.

[0007] In some embodiments, the closest distance between the edge of the first grille area away from the pull-out opening and the pull-out opening is L1, where L1 ≥ 60 mm; and / or, the minimum width of the pull-out opening is B1, where B1 ≤ 40 mm.

[0008] In some embodiments, the length of the first grid hole is greater than or equal to the width of the first grid hole, the maximum width of the first grid hole is d1, d1≤8mm, the length of the second grid hole is greater than or equal to the width of the second grid hole, and the minimum width of the second grid hole is d2, d2>8mm.

[0009] In some embodiments, the first grille area and the second grille area cover the entire air inlet, and the minimum size of the plurality of second grille holes in their radial direction remains unchanged or decreases in the direction away from the first grille area; and / or, the area of ​​the first grille area accounts for half or more of the opening area of ​​the entire air inlet.

[0010] In some embodiments, the first air inlet grille includes a plurality of first ribs located in the first grille area and spaced apart along a first direction, each first rib extending along a second direction, and defining at least one first grille hole between two adjacent first ribs. The size of the first grille hole in the first direction is less than or equal to its size in the second direction. The first air inlet grille also includes a plurality of second ribs located in the second grille area and spaced apart along a third direction, each second rib extending along a fourth direction, and defining at least one second grille hole between two adjacent second ribs. The size of the second grille hole in the third direction is less than or equal to its size in the fourth direction. The maximum size d1 of the first grille hole in the first direction is less than the minimum size d2 of the second grille hole in the first direction. The first direction intersects the second direction, the third direction intersects the fourth direction, the third direction is parallel to or intersects the first direction, and the fourth direction is parallel to or intersects the second direction.

[0011] In some embodiments, pull-out openings are spaced apart on the outer periphery of the air inlet, and the pull-out openings are located on one side of the first air inlet grille in a first direction or a second direction; or, one of the first direction and the second direction is the circumferential direction of the air inlet, and the other is the radial direction of the air inlet.

[0012] In some embodiments, the first air inlet grille further includes a plurality of third ribs located in the first grille area and spaced apart along the second direction, the intersecting first ribs and third ribs defining the first grille opening; and / or, the first air inlet grille further includes a plurality of fourth ribs located in the second grille area and spaced apart along the fourth direction, the intersecting second ribs and fourth ribs defining the second grille opening.

[0013] In some embodiments, the third direction is parallel to the first direction, the fourth direction is parallel to the second direction, and the first air intake grille includes a third rib and a fourth rib, which are connected one-to-one.

[0014] In some embodiments, the fresh air module is configured to satisfy at least one of the following conditions: Condition A1, the first air inlet grille is configured as a flat grille, or the first air inlet grille is configured as a curved grille protruding toward the air inlet frame; Condition A2, the filter assembly is opposite to the air inlet, the filter assembly includes a filter support and a filter core, the filter core is mounted on the filter support, and the filter core is arc-shaped and protrudes toward the direction away from the air inlet.

[0015] In some embodiments, the fresh air module satisfies condition A2, and the cavity wall of the mounting cavity is provided with a first guide rib and a second guide rib that are spaced apart along the axial direction of the air inlet and extend in an arc shape. The filter assembly is slidably fitted between the first guide rib and the second guide rib. One of the first guide rib and the second guide rib is formed on the air inlet frame and the other is formed on the volute.

[0016] In some embodiments, the first air inlet grille is integrally connected to the volute, and the fresh air module also includes an air guide ring, which surrounds the air inlet and the windward end of the air guide ring is integrally connected to the first air inlet grille and the volute. The diameter of the air guide ring is smaller than the diameter of the impeller of the fan assembly.

[0017] In some embodiments, the volute includes a volute body and a volute cover plate. An air inlet is formed on the volute body, and a fan cavity communicating with the air inlet is defined inside the volute body. The volute cover plate is disposed outside the volute body and defines a silencing cavity between the cover plate and the volute body. A plurality of silencing holes connecting the fan cavity and the silencing cavity are formed on the volute body.

[0018] In some embodiments, the fan assembly further includes a motor and a fan wheel disposed in the fan wheel cavity. The motor is mounted on the volute body and connected to the fan wheel. The volute cover is disposed on the side of the volute body that is axially away from the air inlet frame. The volute body forms a limiting groove. Silencing holes are formed on the bottom wall of the limiting groove. Multiple silencers are arranged around the motor. The volute cover is limited and fitted into the limiting groove.

[0019] In some embodiments, a mounting portion is formed on the bottom wall of the limiting groove. The mounting portion protrudes outward and defines a mounting groove for accommodating the motor in the impeller cavity. A wire-passing hole for passing the motor's connecting wire is formed on the mounting portion. A through hole is formed on the volute cover plate. The mounting portion is fitted into the through hole, and the wire-passing hole is exposed on the volute cover plate.

[0020] In some embodiments, the air intake duct further includes an indoor air inlet, the fresh air module includes a second air intake grille located at the indoor air inlet, the air conditioner further includes a rear housing, a first valve and a second valve, at least the air intake frame is located inside the rear housing, the rear housing has a first inlet, a second inlet and an opening spaced apart, the first inlet is opposite to the fresh air inlet, the second inlet is opposite to the indoor air inlet, the opening is opposite to the pull-out opening, the first valve is movably located at the fresh air inlet to open or close the fresh air inlet or the first inlet, the second valve is movably located at the second inlet to open or close the second inlet, and the second air intake grille is recessed inward along a direction away from the second valve.

[0021] In some embodiments, the filter assembly has a handle portion located outside the pull-out opening, and the air conditioner further includes: a rear housing, an air inlet frame and a fan assembly all disposed within the rear housing, the rear housing having a first inlet and an opening spaced apart, the first inlet being opposite to the fresh air inlet, the opening being opposite to the pull-out opening, the handle portion being disposed at the opening, the outer surface of the handle portion being flush with the outer surface of the rear housing, or the outer surface of the handle portion being recessed relative to the outer surface of the rear housing.

[0022] In some embodiments, the fresh air module is configured to satisfy at least one of the following conditions: the closest distance between the edge of the first grille area away from the pull-out opening and the opening is L2, L2≥80mm; the minimum width of the opening is B2, B2≤40mm; the handle portion includes a first handle plate and a second handle plate, the second handle plate is disposed adjacent to the opening and bent and connected to the edge of the first handle plate, so that the first handle plate and the second handle plate define a handle groove facing the width direction of the opening, and a handle clearance groove communicating with the handle groove is formed at the end of the second handle plate away from the first handle plate, the depth of the handle clearance groove being less than the width of the second handle plate.

[0023] 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

[0024] 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:

[0025] Figure 1 This is a schematic diagram of a fresh air module according to some embodiments of the present utility model;

[0026] Figure 2 yes Figure 1 A cross-sectional view of the fresh air module shown;

[0027] Figure 3 yes Figure 2 Enlarged view of point A shown in the image;

[0028] Figure 4 yes Figure 2 The diagram shown illustrates the removal of the filter components from the fresh air module.

[0029] Figure 5 yes Figure 1 A schematic diagram of the volute body and the first air intake grille shown;

[0030] Figure 6 yes Figure 1 Another schematic diagram of the volute body and the first air intake grille shown;

[0031] Figure 7 yes Figure 1 Another schematic diagram of the volute body and the first air intake grille shown;

[0032] Figure 8 yes Figure 1 An exploded view of the fresh air module shown;

[0033] Figure 9 This is a schematic diagram of an air conditioner according to some embodiments of the present invention;

[0034] Figure 10 yes Figure 9 The exploded view of the air conditioner shown.

[0035] Attached diagram labels: Fresh air module 1, Air conditioner 2,

[0036] Air inlet frame 10, air inlet duct 12, fresh air inlet 14, indoor air inlet 16

[0037] Fan assembly 20, volute 22, volute body 220, limiting groove 221, mounting part 2210, mounting groove 2212, wire hole 2214, volute cover plate 222, through hole 2220, impeller cavity 224, motor 2240, impeller 2242, silencing cavity 226, silencing hole 228, air inlet 24, mounting cavity 26, first guide rib 260, second guide rib 262, pull-out opening 28.

[0038] Filter assembly 30, filter screen support 32, filter screen core 34, handle part 36, first handle plate 360, second handle plate 362, handle groove 364, handle clearance groove 366.

[0039] First air intake grille 40, first grille area 42, first grille hole 420, first rib 422, third rib 424, second grille area 44, second grille hole 440, second rib 442, fourth rib 444.

[0040] Wind guide ring 50, windward end 52,

[0041] Second air intake grille 60

[0042] Rear housing 70, first inlet 72, second inlet 74, opening 76, first valve 77, second valve 78

[0043] Humidification module 80, purification module 82, heat exchange duct 83, purification duct 84, ventilation and heat exchange components 85, indoor fan 86, indoor heat exchanger 87, front air outlet 88, side air outlet 89.

[0044] Air conditioner housing 90, air conditioner air inlet 91, air conditioner air outlet 92, air purification outlet 93, chassis 95, middle air outlet 96, top panel 98, front panel 980, front air outlet frame 981, bottom panel 99. Detailed Implementation

[0045] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0046] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present 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 scope of 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. In addition, 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.

[0047] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0048] Hereinafter, with reference to the accompanying drawings, an air conditioner 2 according to an embodiment of the present invention will be described.

[0049] like Figures 1-7 As shown, according to an embodiment of the present invention, the air conditioner 2 includes a fresh air module 1, which includes an air inlet frame 10, a fan assembly 20, a filter assembly 30, and a first air inlet grille 40. The air inlet frame 10 defines an air inlet duct 12, which has a fresh air inlet 14. The fan assembly 20 includes a volute 22 connected to the air inlet frame 10. A mounting cavity 26 is defined between the volute 22 and the air inlet frame 10, or the air inlet frame 10 defines the mounting cavity 26. The air inlet 24 of the volute 22 communicates with the air inlet duct 12 through the mounting cavity 26. The mounting cavity 26 has a... The filter assembly 30 is removably installed in the mounting cavity 26 through the pull-out port 28. The first air inlet grille 40 is located at the air inlet 24 and includes a first grille area 42 and a second grille area 44. The first grille area 42 is located adjacent to the pull-out port 28 relative to the second grille area 44. The first air inlet grille 40 forms a plurality of first grille holes 420 in the first grille area 42 and a plurality of second grille holes 440 in the second grille area 44. The minimum radial dimension of the first grille hole 420 is smaller than the minimum radial dimension of the second grille hole 440. It is understood that the mounting cavity 26 can be defined by the empty space left when the volute 22 and the air inlet frame 10 are assembled, that is, the mounting cavity 26 can be defined by the volute 22 and the air inlet frame 10 together; or, if the air inlet frame 10 leaves a part of the empty space during processing to define the mounting cavity 26, then the mounting cavity 26 can be defined by the air inlet frame 10 alone, so that the setting position of the filter assembly 30 is more flexible.

[0050] As can be seen, the volute 22 is connected to the air inlet frame 10, and the air inlet 24 of the volute 22 is connected to the air inlet duct 12. The filter assembly 30 is located in the mounting cavity 26 between the volute 22 and the air inlet frame 10, so that when the fan assembly 20 is working normally, the outside fresh air can enter the air inlet duct 12 from the fresh air inlet 14, and after being filtered by the filter assembly 30 through the mounting cavity 26, it is then drawn in by the air inlet 24 of the volute 22, thereby realizing the function of fresh air exchange. The filter assembly 30 can also process the fresh air. The filter assembly 30 is removably mounted in the mounting cavity 26 through the pull-out port 28, which makes it convenient for users to clean or replace the filter assembly 30 without disassembling the entire fresh air module 1, improving the convenience and efficiency of maintenance. At the same time, removing the filter assembly 30 will not affect the normal operation of other components, reducing the downtime maintenance time of the fresh air module 1 and improving the user experience. For example, when the filter assembly 30 needs maintenance or cleaning, the user can simply remove the filter assembly 30 from the pull-out port 28 without shutting down the entire fresh air module 1 or disassembling other components. While the filter assembly 30 is being removed for cleaning or replacement, the fan assembly 20 can continue to operate normally or stop operating. After the filter assembly 30 has been cleaned or replaced, the user can also place the filter assembly 30 back into the installation cavity 26 through the pull-out port 28 to resume its function of filtering fresh air from the outside. This reduces the downtime for maintenance of the fresh air module 1 and improves the user experience.

[0051] Furthermore, the first air inlet grille 40 is located at the air inlet 24, which helps to provide a certain degree of protection and improves the problem of foreign objects easily entering the fan assembly 20 through the air inlet 24. Due to the arrangement of the first grille area 42 and the second grille area 44, a portion of the airflow at the air inlet 24 flows into the volute 22 through the first grille hole 420 of the first grille area 42, and another portion of the airflow at the air inlet 24 flows into the volute 22 through the second grille hole 440 of the second grille area 44. Among these, the first grille area 42 is closer to the pull-out opening 28 than the second grille area 44, so the distance between the first grille area 42 and the pull-out opening 28 is smaller than the distance between the second grille area 44 and the pull-out opening 28; for example, combined with... Figures 2-4 As shown, in the pull-out direction of the filter assembly 30, the first grid area 42 is located between the second grid area 44 and the pull-out port 28.

[0052] It is evident that, compared to the second grille area 44, it is easier for a user to reach the first grille area 42 by inserting their finger into the pull-out opening 28. Since the minimum radial dimension of the multiple first grille holes 420 is smaller than that of the multiple second grille holes 440, the first grille holes 420 provide a greater barrier effect when a user inserts their finger into the pull-out opening 28 and reaches the first grille holes 420. This prevents the finger from easily passing through the first grille holes 420 and contacting the internal structure of the fan assembly 20, such as the impeller 2242, thus avoiding cuts and improving the performance of the fresh air module. The safety of the fresh air module 1 is ensured so that it meets safety regulations. Similarly, compared to the first grille area 42, it is less likely for a user to touch the second grille area 44 when inserting their fingers into the pull-out opening 28. Since the minimum radial dimension of the multiple second grille holes 440 is larger than the minimum radial dimension of the multiple first grille holes 420, it is beneficial to appropriately reduce the impact of the first air intake grille 40 on the air intake at the second grille area 44, which helps to reduce the air intake resistance at the air intake 24, thereby increasing the air intake area and air volume of the air intake 24 and improving the performance of the fresh air module 1. In other words, if the entire first air intake grille 40 is set to first grille holes 420 with smaller radial dimensions, although the first air intake grille 40 can effectively prevent fingers from touching the fan blades, the air intake resistance at the air intake 24 is relatively large. Therefore, the above-mentioned setting of this application can both meet safety regulations and reduce air intake resistance.

[0053] It is understood that in this embodiment of the application, the minimum radial dimension of the first grid hole 420 is smaller than the minimum radial dimension of the second grid hole 440. For the grid structure, the grid structure includes grid ribs (such as the first rib 422 and the second rib 442 mentioned below). The grid ribs define the grid holes. The above arrangement also means that the arrangement density of the grid ribs in the first grid area 42 is greater than the arrangement density of the grid ribs in the second grid area 44. In other words, the arrangement density of the multiple first grid holes 420 is greater than the arrangement density of the multiple second grid holes 440. The arrangement density of holes refers to the number of holes per unit area. Therefore, the arrangement density of the multiple first grid holes 420 refers to the number of first grid holes 420 per unit area in the first grid area 42, and the arrangement density of the multiple second grid holes 440 refers to the number of second grid holes 440 per unit area in the second grid area 44.

[0054] For example, after the fresh air module 1 has been used for a period of time, a lot of dust and impurities may accumulate on the filter component 30, which makes the filtration effect of the filter component 30 poor. The user can take out the filter component 30 through the pull-out port 28 for cleaning or replacement. At this time, the empty pull-out port 28 allows the user to put his / her fingers into the pull-out port 28 and thus contact the first air inlet grille 40. By increasing the arrangement density of multiple first grille holes 420 that are close to the pull-out port 28, it is not easy for the fingers to contact the internal structure of the fan component 20 through the first grille holes 420 and cause cuts, which helps to improve the safety of the fresh air module 1.

[0055] like Figures 2-4 As shown, in some embodiments, the closest distance between the edge of the first grille area 42 furthest from the pull-out opening 28 and the pull-out opening 28 is L1, where L1 ≥ 60mm. This ensures that the first grille area 42 has sufficient length, making it less likely for the user to contact the second grille area 44 when inserting their finger through the pull-out opening 28. The first grille area 42 effectively prevents fingers from contacting the internal structure of the fan assembly 20, further improving the safety of the fresh air module 1. For example, L1 can be 60mm, 75mm, 90mm, 125mm, 140mm, 165mm, 182mm, 212mm, or 234mm. The minimum width of the pull-out opening 28 is B1, B1≤40mm, so that the pull-out opening 28 has adequate operating space, which makes it easy for users to put in and take out the filter component 30. At the same time, it can limit users from putting their palms or arms into the pull-out opening 28, making it less likely for users to come into contact with the second grille area 44 and cause cuts, so as to further improve the safety of the fresh air module 1. For example, B1 is 5mm, 8mm, 13mm, 18mm, 21mm, 26mm, 32mm, 34mm, 38mm, 40mm, etc.

[0056] It is understandable that when L1≥60mm and B1≤40mm, in safety tests using the safety finger (Type B test bar) fixture, the pull-out port 28 can better limit the length of the safety finger fixture that extends into the pull-out port 28. At the same time, in conjunction with the size of the first grid area 42, it makes it less likely for the fingertip of the safety finger fixture to come into contact with the second grid area 44.

[0057] like Figures 5-7As shown, in some embodiments, the length of the first grille hole 420 is greater than or equal to the width of the first grille hole 420, so that the flow area of ​​the first grille hole 420 is not too small and affects the air intake volume of the air inlet 24. The maximum width of the first grille hole 420 is d1, where d1 ≤ 8mm. By setting the maximum width of the first grille hole 420 to be less than or equal to 8mm, it is easier to prevent fingers from passing through the first grille hole 420 and touching the fan blades, thereby improving the safety of the fresh air module 1. For example, d1 is 2mm, 2.5mm, 3.2mm, 3.8mm, 4.2mm, 4.6mm, 5.1mm, 5.7mm, 6mm, 6. 6mm, 7.2mm, 7.8mm, 8mm, etc.; the length of the second grille hole 440 is greater than or equal to the width of the second grille hole 440, so that the flow area of ​​the second grille hole 440 is not too small and affects the air intake volume of the air inlet 24. The minimum width of the second grille hole 440 is d2, d2>8mm. By setting the minimum width of the second grille hole 440 to be greater than 8mm, the air intake resistance of the airflow through the second grille area 44 is reduced, thereby increasing the air intake volume of the air inlet 24. For example, d2 is 8.5mm, 9mm, 11mm, 12.5mm, 14mm, 15mm, 18mm, 20mm, etc.

[0058] In this embodiment, the shapes of the first grille hole 420 and the second grille hole 440 are not specifically limited, and either one can be a polygon, a circle, etc. Figures 2-6 In the example, both the first grille hole 420 and the second grille hole 440 are rectangular.

[0059] like Figures 2-7 As shown, in some embodiments, the first grille area 42 and the second grille area 44 cover the entire air inlet 24, that is, the air inlet area corresponding to the entire air inlet 24 is divided into the first grille area 42 and the second grille area 44, which simplifies the structure of the first air inlet grille 40.

[0060] In this embodiment, the minimum radial dimension of the plurality of second grille holes 440 decreases in the direction away from the first grille area 42, i.e., the minimum radial dimension of the plurality of second grille holes 440 decreases in the direction away from the pull-out opening 28, so as to further increase the flow area of ​​the second grille area 44, reduce the air intake resistance of the second grille area 44, increase the air intake volume, and facilitate further improvement of the performance of the fresh air module 1. Of course, in other embodiments of this application, the minimum radial dimension of the plurality of second grille holes 440 remains unchanged in the direction away from the first grille area 42, making the structure of the second grille area 44 simpler and easier to manufacture. And / or, the area of ​​the first grille area 42 occupies half or more of the opening area of ​​the entire air inlet 24, so that the first grille area 42 occupies a sufficient length in the radial direction of the air inlet 24, making it less likely for the user to come into contact with the second grille area 44 and cause cuts, thereby improving the safety of the fresh air module 1.

[0061] For example, the first air inlet grille 40 includes a plurality of second ribs 442 located in the second grille area 44 and spaced apart along a third direction. Each second rib 442 extends along a fourth direction, and two adjacent second ribs 442 define at least one second grille hole 440. The third and fourth directions intersect. When the minimum radial dimension of the plurality of second grille holes 440 decreases in the direction away from the first grille area 42, the spacing between two adjacent second ribs 442 increases in the direction away from the first grille area 42, so that the dimension of the plurality of second grille holes 440 in the third direction increases, which facilitates further improvement of the airflow through the second grille area 44. When the minimum radial dimension of the plurality of second grille holes 440 remains unchanged in the direction away from the first grille area 42, the spacing between two adjacent second ribs 442 remains unchanged in the direction away from the first grille area 42, so that the dimension of the plurality of second grille holes 440 in the third direction remains unchanged, which makes the structure of the second grille area 44 simpler and facilitates improved production efficiency.

[0062] like Figures 2-7 As shown, in some embodiments, the first air inlet grille 40 includes a plurality of first ribs 422 located in the first grille area 42 and spaced apart along a first direction. Each first rib 422 extends along a second direction, and at least one first grille hole 420 is defined between two adjacent first ribs 422. The size of the first grille hole 420 in the first direction (e.g., ...) Figure 6 d1) is less than or equal to its dimension in the second direction (e.g., Figure 6 In the third direction (d3), the first air intake grille 40 includes a plurality of second ribs 442 located in the second grille area 44 and spaced apart along the third direction. Each second rib 442 extends along the fourth direction, and at least one second grille hole 440 is defined between two adjacent second ribs 442. The size of the second grille hole 440 in the third direction (e.g., d3) is... Figure 6 d2) is less than or equal to its dimension in the fourth direction (e.g., Figure 6 In the first direction, the maximum dimension d1 of the first grille hole 420 is smaller than the minimum dimension d2 of the second grille hole 440 in the first direction. The first direction intersects the second direction, the third direction intersects the fourth direction, the third direction is parallel to or intersects the first direction, and the fourth direction is parallel to or intersects the second direction. It can be understood that a portion of the peripheral wall of the air inlet 24 can also define at least one first grille hole 420 between itself and the one closest to the pull-out opening 28 among the plurality of first ribs 422; similarly, a portion of the peripheral wall of the air inlet 24 can also define at least one second grille hole 440 between itself and the one farthest from the pull-out opening 28 among the plurality of second ribs 442.

[0063] As can be seen, the first grille area 42 has a plurality of first ribs 422 spaced apart along the first direction, and each first rib 422 extends along the second direction. The first direction and the second direction intersect, so that at least one first grille hole 420 is defined by two adjacent first ribs 422. This makes the structure of the first grille area 42 relatively simple and easy to manufacture. At the same time, the plurality of first ribs 422 enhance the structural strength of the first air intake grille 40 in the grille area 42, which can effectively resist external pressure or deformation and improve the stability and durability of the first air intake grille 40 in the grille area 42. Moreover, the size of the first grille hole 420 in the first direction is less than or equal to the size of the first grille hole 420 in the second direction, that is, it is not easy for fingers to pass through the first grille hole 420 and come into contact with the fan blades, thus causing cuts. This helps to improve the safety of the fresh air module 1.

[0064] The second grille area 44 has multiple second ribs 442 spaced apart along a third direction, and each second rib 442 extends along a fourth direction. The third and fourth directions intersect, so that at least one second grille hole 440 is defined by two adjacent second ribs 442. This makes the structure of the second grille area 44 simpler and easier to manufacture. At the same time, the multiple second ribs 442 enhance the structural strength of the first air intake grille 40 in the second grille area 44, which can effectively resist external pressure or deformation and improve the stability and durability of the first air intake grille 40 in the second grille area 44. Moreover, the size of the second grille hole 440 in the third direction is less than or equal to the size of the second grille hole 440 in the fourth direction, which means that fingers are less likely to pass through the second grille hole 440 and come into contact with the inside of the fan assembly 20, thus causing cuts. This helps to improve the safety of the fresh air module 1.

[0065] Furthermore, the maximum dimension d1 of the first grille hole 420 in the first direction is smaller than the minimum dimension d2 of the second grille hole 440 in the first direction. Compared with the second grille hole 440, the first grille hole 420 is located closer to the pull-out opening 28, making it easier for the user to touch the first grille hole 420 when inserting their fingers into the pull-out opening 28, but less likely to touch the second grille hole 440. By reducing the spacing of the multiple first ribs 422 in the first direction, it is easier to limit the fingers from passing through the first grille hole 420 and touching the inside of the fan assembly 20, thereby improving the safety of the fresh air module 1. At the same time, compared with the multiple first ribs 422, the spacing of the multiple second ribs 442 in the first direction is larger, which helps to reduce the air intake resistance of the second grille area 44 and increase the air intake volume through the second grille area 44.

[0066] Where the third direction is parallel or intersecting with the first direction, and the fourth direction is parallel or intersecting with the second direction, the arrangement of the multiple first ribs 422 and the arrangement of the multiple second ribs 442 can be the same or different, so that the arrangement of the first ribs 422 and the second ribs 442 is more flexible, and it is convenient for the staff to flexibly adjust the direction of the ribs and the size of the grid holes according to the actual protection needs, structural strength requirements or aesthetic considerations.

[0067] Optionally, if one of the first ribs 422 is located at the junction of the first grid area 42 and the second grid area 44, the first rib 422 can also serve as the second rib 442.

[0068] In some embodiments, such as Figures 2-7 As shown, the pull-out ports 28 are spaced apart on the outer periphery of the air inlet 24, and the pull-out ports 28 are located on one side of the first air inlet grille 40 in the first direction or the second direction. That is, the pull-out ports 28 can be flexibly set on any side of the first air inlet grille 40, so that the setting position of the pull-out ports 28 is more flexible and easy to adapt to different installation environments; or, as Figure 8 As shown, the pull-out openings 28 are spaced apart on the outer periphery of the air inlet 24. One of the first direction and the second direction is the circumferential direction of the air inlet 24, and the other is the radial direction of the air inlet 24. That is, multiple first ribs 422 are spaced apart along the radial direction of the air inlet 24 and each first rib 422 extends along the circumferential direction of the air inlet 24, or multiple first ribs 422 are spaced apart along the circumferential direction of the air inlet 24 and each first rib 422 extends along the radial direction of the air inlet 24, making the arrangement of the first ribs 422 more flexible.

[0069] like Figures 2-7As shown, in some embodiments, the first air intake grille 40 further includes a plurality of third ribs 424 located in the first grille area 42 and spaced apart along the second direction. The intersecting first ribs 422 and third ribs 424 define the first grille hole 420. By setting the third ribs 424 to intersect with the first ribs 422, the structural strength of the first air intake grille 40 in the first grille area 42 is enhanced, which helps to improve the ability of the first air intake grille 40 to resist external pressure or vibration in the first grille area 42, thereby improving the reliability of the first air intake grille 40 in operation; and / or, the first air intake grille 40 further includes a plurality of fourth ribs 444 located in the second grille area 44 and spaced apart along the fourth direction. The intersecting second ribs 442 and fourth ribs 444 define the second grille hole 440. By setting the fourth ribs 444 to intersect with the second ribs 442, the structural strength of the first air intake grille 40 in the second grille area 44 is enhanced, which helps to improve the ability of the first air intake grille 40 in the second grille area 44 to resist external pressure or vibration in the second grille area 44, thereby improving the reliability of the first air intake grille 40 in operation.

[0070] like Figures 5-8 As shown, in some embodiments, the third direction is parallel to the first direction and the fourth direction is parallel to the second direction. Therefore, the shapes of the plurality of first grille holes 420 and the plurality of second grille holes 440 in the first air intake grille 40 are approximately the same, making the structure of the first air intake grille 40 simpler and easier to manufacture. The first air intake grille 40 includes a third rib 424 and a fourth rib 444, which are connected one-to-one so that the third rib 424 and the fourth rib 444 together form a single rib that intersects with the first rib 422 and the second rib 442, further enhancing the structural strength of the first air intake grille 40 and improving its reliability and service life.

[0071] Of course, the structural forms of the first grille area 42 and the second grille area 44 can also be different. For example, the first direction intersects with the third direction, and the fourth direction intersects with the second direction: Example 1: The first direction is the left-right direction, the second direction is the up-down direction, and one of the third and fourth directions is the circumferential direction of the air inlet 24, and the other is the radial direction of the air inlet 24; Example 2: One of the first and second directions is the circumferential direction of the air inlet 24, and the other is the radial direction of the air inlet 24, the third direction is the left-right direction, and the fourth direction is the up-down direction.

[0072] In some embodiments, such as Figure 2 , Figure 5 and Figure 6 As shown, the third direction is parallel to the first direction, the fourth direction is parallel to the second direction, the first direction is perpendicular to the second direction, and the third direction is perpendicular to the fourth direction.

[0073] For example, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the first and third directions are the left and right directions of the fresh air module 1, and the second and fourth directions are the up and down directions of the fresh air module 1. The first rib 422 and the second rib 424 both extend along the up and down direction of the fresh air module 1, and multiple first ribs 422 and multiple second ribs 424 are arranged at intervals along the left and right direction of the fresh air module 1. The third rib 442 and the fourth rib 444 both extend along the left and right direction of the fresh air module 1, and multiple first ribs 422 and multiple second ribs 424 are arranged at intervals along the up and down direction of the fresh air module 1, so that the intersecting first ribs 422 and third ribs 442 define the first grille hole 420, and the intersecting second ribs 424 and fourth ribs 444 define the second grille hole 440, so that the first grille hole 420 and the second grille hole 440 are formed into a rectangle or a square, which has a relatively simple structure and is easy to process and manufacture. The pull-out opening 28 is located on the side of the first grille area 42 away from the second grille area 44 in the left-right direction of the fresh air module 1, so that the user is less likely to come into contact with the second grille hole 440, which helps to improve the safety of the operation of the fresh air module 1.

[0074] For example, such as Figure 1 and Figure 7 As shown, the first and third directions are radial directions of the air inlet 24, and the second and fourth directions are circumferential directions of the air inlet 24. The first rib 422 and the second rib 424 both extend circumferentially along the air inlet 24, and multiple first ribs 422 and multiple second ribs 424 are arranged radially spaced along the air inlet 24. The third rib 442 and the fourth rib 444 both extend radially along the air inlet 24 of the fresh air module 1, and multiple first ribs 422 and multiple second ribs 424 are arranged circumferentially along the air inlet 24 of the fresh air module 1, so that the intersecting first ribs 422 and the third ribs 442 define the first grille hole 420, and the intersecting second ribs 424 and the fourth ribs 444 define the second grille hole 440, so that the first grille hole 420 and the second grille hole 440 form a quadrilateral, which has a relatively simple structure and is easy to process and manufacture. The pull-out opening 28 is located on the side of the first grille area 42 that is radially away from the second grille area 44 in the air inlet 24, so that the user is less likely to come into contact with the second grille hole 440, thereby improving the safety of the operation of the fresh air module 1.

[0075] For example, when the fresh air module 1 is applied to the air conditioner 2, the first and third directions can be the left and right directions of the air conditioner 2, the second and fourth directions are the up and down directions of the air conditioner 2, and the pull-out port 28 is located on the side of the first grille area 42 away from the second grille area 44 in the left and right direction of the air conditioner 2. Figures 2-8As shown, in some embodiments, the fresh air module 1 is configured to satisfy at least one of the following conditions A1 and A2:

[0076] In condition A1, if the first air inlet grille 40 is constructed as a flat grille, then the structure of the first air inlet grille 40 is relatively simple and easy to process and form. Alternatively, the first air inlet grille 40 can be constructed as a curved plate grille protruding towards the air inlet frame 10, which can increase the distance between the first air inlet grille 40 and the air inlet 24, so that the user's fingers are less likely to touch the inside of the fan assembly 20 and cause cuts. At the same time, the setting of the protruding curved plate grille can increase the flow area of ​​the first air inlet grille 40, so as to increase the air intake volume of the air inlet 24 and improve the user experience.

[0077] In condition A2, the filter assembly 30 is opposite to the air inlet 24. The filter assembly 30 includes a filter support 32 and a filter core 34. The filter core 34 is mounted on the filter support 32 and is arc-shaped, protruding away from the air inlet 24 to increase the filtration area of ​​the filter assembly, thus improving its filtration effect. It is understood that the connection method between the filter core 34 and the filter support 32 is not specifically limited. For example, if the filter core 34 and the filter support 32 are detachably connected, when the user needs to clean the filter assembly, the filter core 34 can be removed from the filter support 32, and both the filter core 34 and the filter support 32 can be cleaned separately, improving the cleanliness of the filter assembly 30. Furthermore, when the filter assembly needs to be replaced, the user can replace only the filter core 34, reducing the maintenance cost of the filter assembly 30.

[0078] Optionally, the filter core 34 is a HEPA filter. HEPA filters are mainly used to filter fine particulate matter in the air, such as dust, pollen, bacteria, viruses and other particles. They can effectively capture particles with a diameter of 0.3 micrometers or larger. HEPA filters have high-efficiency filtration capabilities and can filter allergens and pathogens in the air, ensuring air cleanliness. Using HEPA filters as the filter core 34 can improve the filtration effect of the filter assembly.

[0079] like Figure 4 As shown, in some embodiments, the fresh air module 1 satisfies condition A2. The cavity wall of the mounting cavity 26 is provided with a first guide rib 260 and a second guide rib 262 that are spaced apart along the axial direction of the air inlet 24 and extend in an arc shape. The filter assembly 30 is slidably fitted between the first guide rib 260 and the second guide rib 262. One of the first guide rib 260 and the second guide rib 262 is formed on the air inlet frame 10, and the other is formed on the volute 22. At this time, the mounting cavity 26 is limited between the volute 22 and the air inlet frame 10.

[0080] As can be seen, the first guide rib 260 and the second guide rib 262 define the track for the sliding engagement of the filter assembly 30. That is, the assembly of the air inlet frame 10 and the volute 22 can form a track for the sliding engagement of the filter assembly 30. The track is arc-shaped, and the filter assembly 30 is also arc-shaped, so that the shape of the filter assembly 30 and the shape of the track can be better matched, which facilitates the installation of the filter assembly 30. When the user needs to clean or replace the filter assembly 30, the filter assembly can be pulled out from the pull-out port 28 with an arc-shaped movement trajectory, which reduces the space required for the user to disassemble and install the filter assembly 30, so that the fresh air module 1 can adapt to different installation environments.

[0081] Furthermore, one of the first guide rib 260 and the second guide rib 262 is formed on the air inlet frame 10, and the other is formed on the volute 22. For example, the first guide rib 260 is located on the air inlet frame 10, and the second guide rib 262 is located on the volute 22, or the first guide rib 260 is located on the volute 22, and the second guide rib 262 is located on the air inlet frame 10. This facilitates reducing the processing difficulty of the first guide rib 260 and the second guide rib 262 and improving production efficiency.

[0082] like Figures 2-4 As shown, in some embodiments, the first air inlet grille 40 is integrally connected to the volute 22, for example, the first air inlet grille 40 is integrally connected to the peripheral wall of the air inlet 24; the fresh air module 1 also includes an air guide ring 50, which is arranged around the air inlet 24, and the windward end 52 of the air guide ring 50 is integrally connected to the first air inlet grille 40 and the volute 22, and the diameter of the air guide ring 50 is smaller than the diameter of the impeller 2242 of the fan assembly 20.

[0083] As can be seen, the air guide ring 50 is set around the air inlet 24. The air guide ring 50 can guide the airflow to enter the impeller 2242 of the fan assembly 20 more smoothly. By reducing the turbulence and eddies of the airflow at the air inlet 24, the straightness and stability of the airflow can be improved, so that more airflow can be effectively captured and accelerated by the impeller 2242, which helps to improve the overall airflow efficiency and performance of the fresh air module 1.

[0084] In addition, the air guide ring 50 is integrally connected to the first air intake grille 40 and the volute 22 so that the first air intake grille 40, the air guide ring 50 and the volute 22 form a whole, which helps to enhance the structural strength of the first air intake grille 40 when it is fitted with the volute 22, so that the fresh air module 1 can obtain a more stable working effect.

[0085] The diameter of the air guide ring 50 is smaller than that of the impeller 2242, so that the air guide ring 50 can guide the airflow into the impeller 2242 more smoothly, further reducing the possibility of airflow turbulence and eddies at the air inlet 24, making it less likely to generate abnormal noise when the airflow passes through the air inlet 24, and improving the sound quality of the fresh air module 1.

[0086] like Figures 2-4 As shown, in some embodiments, the volute 22 includes a volute body 220 and a volute cover 222. An air inlet 24 is formed on the volute body 220. A fan wheel cavity 224 communicating with the air inlet 24 is defined inside the volute body 220. The volute cover 222 is disposed outside the volute body 220, and a silencing cavity 226 is defined between the volute cover 222 and the volute body 220. A plurality of silencing holes 228 connecting the fan wheel cavity 224 and the silencing cavity 226 are formed on the volute body 220.

[0087] As can be seen, the volute body 220 has a fan wheel cavity 224 that communicates with the air inlet 24. The fan wheel cavity 224 provides a relatively sealed environment for the operation of the fan wheel 2242, reducing the possibility of foreign objects entering and affecting the normal operation of the fan wheel 2242. The volute cover plate 222 and the volute body 220 define a silencing cavity 226, and multiple silencing holes 228 connect the fan wheel cavity 224 and the silencing cavity 226. Part of the airflow flowing through the fan wheel cavity 224 enters the silencing cavity 226 through the silencing holes 228, and at the same time, an air column is formed at the silencing holes 228, which resonates with the airflow passing through the fan wheel cavity 224, converting sound energy into heat energy for dissipation, reducing the audible sound component, and facilitating the reduction of noise during the operation of the fresh air module 1.

[0088] like Figures 2-4 , Figure 8 As shown, in some embodiments, the fan assembly 20 further includes a motor 2240 and a fan wheel 2242 disposed in the fan wheel cavity 224. The motor 2240 is mounted on the volute body 220 and connected to the fan wheel 2242. The volute cover plate 222 is disposed on the side of the volute body 220 axially away from the air inlet frame 10. The volute body 220 forms a limiting groove 221. Silencing holes 228 are formed on the bottom wall of the limiting groove 221. Multiple silencers 228 are arranged around the motor 2240. The volute cover plate 222 is limited and fitted into the limiting groove 221.

[0089] As can be seen, the motor 2240 is installed on the volute body 220 and connected to the impeller 2242. The motor 2240 can drive the impeller 2242 to rotate and drive the airflow. The volute body 220 forms a limiting groove 221. The limiting groove 221 is open on the side away from the air inlet frame 10. The volute cover plate 222 is limited and matched with the limiting groove 221, which reduces the assembly difficulty of the volute cover plate 222 and the volute body 220 and facilitates the improvement of production efficiency. Multiple silencing holes 228 are arranged around the motor 2240. That is, the area where the motor 2240 is located is not provided with silencing holes 228, so that the area where the motor 2240 is located has good structural strength, making the motor 2240 more stable when it is working.

[0090] like Figures 2-4 , Figure 8 As shown, in some embodiments, a mounting portion 2210 is formed on the bottom wall of the limiting groove 221. The mounting portion 2210 protrudes outward and defines a mounting groove 2212 for accommodating the motor 2240 within the impeller cavity 224. A wire hole 2214 for passing the connecting wire of the motor 2240 is formed on the mounting portion 2210. A through hole 2220 is formed on the volute cover plate 222. The mounting portion 2210 is fitted into the through hole 2220, and the wire hole 2214 is exposed outside the volute cover plate 222.

[0091] As can be seen, the motor 2240 is installed in the mounting groove 2212 defined in the impeller cavity 224 by the mounting part 2210, which makes fuller use of the space of the impeller cavity 224, making the structure of the fresh air module 1 more compact and facilitating the miniaturization of the fresh air module 1. At the same time, the mounting part 2210 is protruding outward, and multiple silencer holes 228 can be arranged around the outer periphery of the mounting part 2210 at intervals, which facilitates quick alignment and mating with the through hole 2220, and realizes the rapid assembly of the volute body 220 and the volute cover plate 222.

[0092] In addition, the mounting part 2210 cooperates with the through hole 2220 formed by the volute cover plate 222 so that the wire hole 2214 is exposed outside the volute cover plate 222. The connecting wire of the motor 2240 can extend to the outside of the impeller cavity 224 through the wire hole 2214, which facilitates the routing of the connecting wire and provides more operating space for the staff to install or maintain the connecting wire of the motor 2240 without disassembling too many parts, thus improving the efficiency of the installation or maintenance of the connecting wire.

[0093] like Figures 2-4 As shown, in some embodiments, the air intake duct 12 also has an indoor air inlet 16. The fresh air module 1 includes a second air intake grille 60, which is disposed at the indoor air inlet 16. At least the air intake frame 10 is disposed inside the rear housing 70. The air conditioner 2 also includes a rear housing 70, a first valve 77, and a second valve 78. The rear housing 70 has a first inlet 72, a second inlet 74, and an opening 76 that are spaced apart. The first inlet 72 is opposite to the fresh air inlet 14, the second inlet 74 is opposite to the indoor air inlet 16, and the opening 76 is opposite to the pull-out port 28. The first valve 77 is movably disposed at the fresh air inlet 14 to open or close the fresh air inlet 14 or the first inlet 72. The second valve 78 is movably disposed at the second inlet 74 to open or close the second inlet 74. The second air intake grille 60 is recessed inward in a direction away from the second valve 78. For example, if the volute 22 and the air inlet frame 10 define a mounting cavity 26, then at least part of the volute 22 and the air inlet frame 10 are located within the rear housing 70; or, if the air inlet frame 10 defines the mounting cavity 26, then at least the air inlet frame 10 is located within the rear housing 70.

[0094] As can be seen, the second air inlet grille 60 is located at the indoor air inlet 16. The second air inlet grille 60 can block foreign objects from entering the indoor air inlet 16 to a certain extent, which helps to improve the stability of the operation of the fresh air module 1. The rear housing 70 has a first inlet 72, a second inlet 74 and an opening 76 arranged at intervals, which correspond one-to-one with the fresh air inlet, the indoor air inlet 16 and the pull-out opening 28, respectively. The first valve 77 can control the opening and closing of the fresh air inlet 14 or the first inlet 72, and the second valve 78 can control the opening and closing of the second inlet 74, so that outdoor fresh air and / or indoor air can flow into the air inlet duct 12 and be purified by the filter component 30. By controlling the first valve 77 and the second valve 78, it is easy to adapt to different usage environments and needs of the fresh air module 1. For example, when the indoor air quality is good, the first valve 77 can be closed and only the second valve 78 can be opened to use the indoor air inlet 16 for circulation ventilation. When the indoor air quality is poor, the first valve 77 can be opened to allow fresh air to enter the room through the fresh air inlet 14.

[0095] In addition, the second air intake grille 60 is recessed in the direction away from the second valve 78 to provide more clearance for the movement of the second valve 78, thereby reducing the possibility of interference between the second valve 78 and the second air intake grille 60 and improving the stability of the operation of the fresh air module 1.

[0096] like Figure 2 and Figure 4 As shown, in some embodiments, the air intake duct 12 has multiple indoor air inlets 16, and the rear housing 70 has multiple second air intake grilles 60, multiple second inlets 74 and multiple second valves 78. Each indoor air inlet 16 corresponds to a second air intake grille 60, a second inlet 74 and a second valve 78, so that the fresh air module 1 can easily adapt to different installation environments.

[0097] For example, the fresh air module 1 is installed on the air conditioner cabinet unit. Due to the limitations of the air conditioner cabinet unit's installation environment, multiple indoor air inlets 16 are set up so that at least some of the indoor air inlets 16 are not blocked, so that the fresh air module 1 has a good air intake volume, which helps to improve the user experience.

[0098] like Figures 2-4 , Figure 8 As shown, in some embodiments, the filter assembly 30 has a handle portion 36 located outside the pull-out opening 28. The air conditioner 2 also includes: a rear housing 70, an air inlet frame 10 and a fan assembly 20, all of which are disposed inside the rear housing 70. The rear housing 70 has a first inlet 72 and an opening 76 that are spaced apart. The first inlet 72 is opposite to the fresh air inlet 14, and the opening 76 is opposite to the pull-out opening 28. The handle portion 36 is disposed at the opening 76. The outer surface of the handle portion 36 is flush with the outer surface of the rear housing 70, or the outer surface of the handle portion 36 is recessed relative to the outer surface of the rear housing 70.

[0099] As can be seen, the filter assembly 30 also has a handle 36 located outside the pull-out port 28, so that users can more easily grasp and pull the filter assembly 30, thereby facilitating the cleaning or replacement of the filter assembly 30; the air inlet frame 10 and the fan assembly 20 are both located inside the rear housing 70, so the rear housing 70 can protect the air inlet frame 10 and the fan assembly 20 to a certain extent, so that the fresh air module 1 is more stable during operation; the opening 76 is opposite to the pull-out port 28 and the handle 36 is located at the opening 76, so that users can take out the filter assembly 30 through the opening 76, which reduces the possibility of interference with the rear housing 70 when taking out or putting in the filter assembly 30.

[0100] In addition, the outer surface of the handle 36 is flush with the outer surface of the rear housing 70, which helps to reduce accidental damage to the handle 36 due to collision or friction. At the same time, it makes the appearance of the entire fresh air module 1 more unified and coordinated, improving the user experience. Alternatively, the outer surface of the handle 36 is recessed relative to the outer surface of the rear housing 70, making the handle 36 more concealed and reducing the risk of users accidentally touching the handle 36 during use and causing the filter component 30 to move accidentally, so as to make the fresh air module 1 more stable in operation.

[0101] like Figures 2-4 , Figure 8 As shown, in some embodiments, the fresh air module 1 is configured to satisfy at least one of the following conditions C1 to C3:

[0102] In condition C1, the closest distance between the edge of the first grille area 42 away from the pull-out opening 28 and the opening 76 is L2, where L2 ≥ 80 mm. This ensures that there is a sufficient distance between the edge of the first grille area 42 away from the pull-out opening 28 and the opening 76, thereby reducing the possibility of the user's fingers touching the second grille area 44 and improving the safety of the fresh air module 1.

[0103] In condition C2, the minimum width of the opening 76 is B2, B2≤40mm, so that the opening 76 has sufficient operating space to facilitate the user to put in and take out the filter component 30, while also restricting the user from putting their palm further into the opening 76, so that the user is less likely to come into contact with the second grille area 44 and cause cuts, thus improving the safety of the fresh air module 1.

[0104] In condition C3, the handle portion 36 includes a first handle plate 360 ​​and a second handle plate 362. The second handle plate 362 is disposed adjacent to the opening 76 and is bent and connected to the edge of the first handle plate 360, so that the first handle plate 360 ​​and the second handle plate 362 define a handle groove 364 with the opening facing the width direction of the opening 76. The end of the second handle plate 362 away from the first handle plate 360 ​​forms a handle clearance groove 366 that communicates with the handle groove 364. The depth of the handle clearance groove 366 is (e.g., Figure 3 L3 in the middle is smaller than the width of the second handle plate 362 (e.g.) Figure 3 L4 in the middle.

[0105] As can be seen, the second handle plate 362 is bent and connected to the first handle plate 360, defining a handle groove 364 on the side of the opening 76 facing the width direction, providing the user with a clear gripping area, making it convenient for the user to pick up and put down the filter component 30; the second handle plate 362 also forms a handle clearance groove 366 that communicates with the handle groove 364, and the depth of the handle clearance groove 366 is less than the width of the second handle plate 362, that is, there is a certain amount of empty space between the part of the second handle plate 362 forming the handle clearance groove 366 and one end of the opening 76, so that the user can more easily access the handle groove 364 through the handle clearance groove 366, providing the user with a larger operating space.

[0106] like Figures 2-4 As shown, in some embodiments, the fresh air component satisfies C1, and the closest distance between the edge of the first grille area 42 away from the pull-out port 28 and the opening 76 is L2, where L2 ≤ 300 mm. By setting the closest distance between the edge of the first grille area 42 away from the pull-out port 28 and the opening 76 in the range of 60 mm to 300 mm, sufficient distance is provided between the edge of the first grille area 42 away from the pull-out port 28 and the opening 76, which facilitates the improvement of the safety of the fresh air module 1. At the same time, the first grille area 42 will not occupy too much space in the fresh air component, affecting the arrangement of other components or increasing the air intake resistance of the air inlet 24. For example, L2 is 80 mm, 85 mm, 90 mm, 125 mm, 140 mm, 165 mm, 182 mm, 212 mm, 234 mm, 251 mm, 274 mm, 286 mm, 300 mm, etc.

[0107] like Figures 2-4As shown, in some embodiments, the fresh air component satisfies C2, and the minimum width of the opening 76 is B2, where B2 ≥ 5mm. By setting the minimum width of the opening 76 within the range of 5mm to 20mm, the pull-out port 28 has sufficient operating space to facilitate the user's placement and removal of the filter component 30. At the same time, the thickness of the filter component 30 is not excessively restricted, so that the filter component 30 has a good filtering effect. Moreover, it can limit the user from further inserting their palm into the pull-out port 28, making it less likely for the user to come into contact with the second grille area 44 and cause cuts, thus improving the safety of the fresh air module 1. For example, B2 is 5mm, 7mm, 8mm, 11mm, 13mm, 14mm, 16mm, 17mm, 19mm, 20mm, etc.

[0108] In some embodiments, the air conditioner 2 includes a humidification module 80, a purification module 82, and a fresh air module 1 according to the first aspect of the present invention, wherein the fresh air module 1, the purification module 82, and the humidification module 80 are arranged sequentially along the airflow direction.

[0109] As can be seen, the fresh air module 1 first introduces outdoor fresh air, which enters the purification module 82 after preliminary filtration and treatment. The purification module 82 further purifies and filters the air to remove harmful substances. Finally, the humidification module 80 humidifies the air as needed to ensure that the indoor air humidity is suitable, which can improve the user experience. At the same time, the fresh air module 1 has good safety, so that it can provide fresh air to the air conditioner 2 more safely, which can improve the safety of the air conditioner 2.

[0110] It is understood that the type of air conditioner 2 in this application embodiment is not limited. It can be a vehicle air conditioner, an integrated air conditioner or a split air conditioner. An integrated air conditioner can include a window air conditioner or a portable air conditioner, etc., and a split air conditioner can include a wall-mounted air conditioner or a floor-standing air conditioner, etc.

[0111] The type of purification module 82 in this application embodiment is not limited. For example, the purification module 82 can effectively reduce pollutants such as PM2.5, dust, and pollen, and remove odors from the air through chemical reactions, providing users with a fresher and healthier indoor environment. For example, the purification module 82 can have disinfection and sterilization functions.

[0112] The type of humidification module 80 in this application embodiment is not limited. The humidification module 80 can humidify the airflow flowing through it and then send the humidified air into the room, thereby providing indoor air humidity and effectively solving the problem of dry air caused by the use of air conditioning in enclosed spaces.

[0113] like Figure 9 and Figure 10As shown, in some embodiments, the air conditioner 2 has a heat exchange duct 83 and a purification duct 84 that are separated. The heat exchange duct 83 is equipped with an indoor fan 86 and an indoor heat exchanger 87. The fresh air module 1, the purification module 82 and the humidification module 80 are arranged corresponding to the purification duct 84. By separating the heat exchange duct 83 and the purification duct 84, the air conditioner 2 can simultaneously perform temperature regulation and air purification, which can meet different user needs.

[0114] For example, the air conditioner 2 includes a heat exchange duct 83 (for example, the heat exchange duct 83 may be defined by the air conditioner housing 90, or by the ventilation heat exchange component 85, or by both the air conditioner housing 90 and the ventilation heat exchange component 85). The air conditioner housing 90 has an air inlet 91 and an air outlet 92, both of which are connected to the heat exchange duct 83 and to the environment outside the air conditioner housing 90 (such as indoors). The ventilation heat exchange component 85 includes an indoor fan 86 and an indoor heat exchanger 87. The impeller of the indoor fan 86 and the indoor heat exchanger 87 are both located in the heat exchange duct 83. When the ventilation heat exchange component 85 is working, the indoor fan 86 introduces indoor air into the heat exchange duct 83 from the air inlet 91. After the air enters the heat exchange duct 83 and exchanges heat with the indoor heat exchanger 87, it is blown out from the air outlet 92 and returned to the room, thus regulating the indoor temperature.

[0115] For example, refer to Figure 9 and Figure 10 The air conditioner housing 90 has a purified air outlet 93, a second inlet 74, and a first inlet 72. The purified air outlet 93 is connected to the side air outlet 89 of the humidification module 80, the second inlet 74 is connected to the indoor air inlet, and the first inlet 72 is connected to the fresh air inlet 14. The first inlet 72 is connected to the outside through a fresh air duct, and both the second inlet 74 and the purified air outlet 93 are connected to the environment outside the air conditioner housing 90 (such as indoors).

[0116] For example, refer to Figure 9 and Figure 10The air conditioner 2 can be a cabinet air conditioner. The ventilation and heat exchange component 85 is located above the fresh air module 1, the purification module 82, and the humidification module 80. The electrical control component is located below the ventilation and heat exchange component 85 and behind the humidification module 80. The air inlet 91 and the air outlet 92 are both located on the upper part of the air conditioner housing 90. The purification outlet 93, the second inlet 74, and the first inlet 72 are all located on the lower part of the air conditioner housing 90. Thus, the airflow after heat exchange by the ventilation and heat exchange component 85 can be sent out from the upper part of the air conditioner 2, and the airflow after purification and / or humidification by the fresh air module 1, the purification module 82, and the humidification module 80 can be sent out from the lower part of the air conditioner 2. In addition, when the humidification module 80 includes a front air outlet 88, a central air outlet 96 communicating with the environment outside the air conditioner housing 90 (such as indoors) can be provided on the front side of the middle part of the air conditioner housing 90, and the central air outlet 96 is connected to the front air outlet 88.

[0117] For example, refer to Figure 9 and Figure 10 When the air conditioner 2 is a cabinet air conditioner, the air conditioner housing 90 may include a rear housing 70 and a front housing and a chassis 95 connected to the front side of the rear housing 70. The chassis 95 is connected to the lower end of the rear housing 70 and the front housing. The front housing includes an upper panel 98 and a lower panel 99. The upper panel 98 is located above the lower panel 99. The upper panel 98 covers the front side of the ventilation and heat exchange component 85. The lower panel 99 covers the front side of the fresh air module 1, the purification module 82 and the humidification module 80. Thus, when it is necessary to expose the ventilation and heat exchange component 85, only the upper panel 98 can be removed. When it is necessary to expose the fresh air module 1, the purification module 82 and the humidification module 80, only the lower panel 99 can be removed. The upper panel 98 may include a front panel 980 and a front air outlet frame 981. The front air outlet frame 981 defines an air outlet channel that communicates with the heat exchange air duct 83. The front panel 980 covers the front side of the front air outlet frame 981.

[0118] For example, the rear housing 70 is part of the rear housing 70. An air conditioning inlet 91, a purified air outlet 93, a second inlet 74, and a first inlet 72 are all disposed on the rear housing 70. The air conditioning inlet 91 is located at the upper part of the rear housing 70, while the purified air outlet 93, the second inlet 74, and the first inlet 72 are located at the lower part of the rear housing 70. The purified air outlet 93 and the second inlet 74 are both located on the left and right sides of the rear housing 70, with the purified air outlet 93 higher than the second inlet 74. The first inlet 72 is located at the rear of the rear housing 70. The air conditioning outlet 92 is disposed on the upper panel 98, for example, on the left and right sides of the front panel 980, and is defined by the front air outlet frame 981. The middle air outlet 96 can be located between the upper panel 98 and the lower panel 99, and is defined by the lower panel 99.

[0119] Furthermore, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. In addition, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

[0120] In the description of this utility model, it should be understood that the terms "center", "lateral", "length", "thickness", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0121] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. It should be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0122] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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.

[0123] 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. An air conditioner characterized by comprising: The new air module comprises: An air inlet frame defining an air inlet duct having a new air inlet; A fan assembly comprising a volute connected to the air inlet frame, the volute and the air inlet frame defining a mounting cavity therebetween, or the air inlet frame defining the mounting cavity, the new air inlet of the volute being in communication with the air inlet duct through the mounting cavity, the mounting cavity having a pull opening; A filter assembly being pullably mounted in the mounting cavity through the pull opening; A first air inlet grille being provided at the new air inlet and comprising a first grille area and a second grille area, the first grille area being disposed adjacent to the pull opening relative to the second grille area, the first air inlet grille being formed with a plurality of first grille holes in the first grille area and a plurality of second grille holes in the second grille area, the first grille holes having a minimum dimension in a radial direction thereof that is smaller than a minimum dimension in a radial direction of the second grille holes.

2. The air conditioner of claim 1, wherein: A nearest distance between a side edge of the first grille area distal to the pull opening and the pull opening is L1, L1≥60mm; and / or A minimum width of the pull opening is B1, B1≤40mm.

3. The air conditioner of claim 1, wherein: A length of the first grille hole is greater than or equal to a width of the first grille hole, the first grille hole having a maximum width d1, d1≤8mm; A length of the second grille hole is greater than or equal to a width of the second grille hole, the second grille hole having a minimum width d2, d2>8mm.

4. The air conditioner of claim 1, wherein The first grille area and the second grille area cover the entire new air inlet, A minimum dimension in a radial direction of the second grille holes does not change or decreases in a direction away from the first grille area; and / or An area of the first grille area accounts for half or more of an opening area of the entire new air inlet.

5. The air conditioner of claim 1, wherein: The first air inlet grille comprises a plurality of first ribs located in the first grille area and spaced apart in a first direction, each of the first ribs extending in a second direction, at least one of the first grille holes being defined between two adjacent first ribs, the first grille hole having a dimension in the first direction that is less than or equal to a dimension in the second direction, The first air inlet grille comprises a plurality of second ribs located in the second grille area and spaced apart in a third direction, each of the second ribs extending in a fourth direction, at least one of the second grille holes being defined between two adjacent second ribs, the second grille hole having a dimension in the third direction that is less than or equal to a dimension in the fourth direction, a maximum dimension d1 of the first grille hole in the first direction being less than a minimum dimension d2 of the second grille hole in the first direction, The first direction intersects the second direction, the third direction intersects the fourth direction, the third direction is parallel to or intersects the first direction, and the fourth direction is parallel to or intersects the second direction.

6. The air conditioner of claim 5, wherein The pull-out opening is arranged at the outer circumferential side of the air inlet, The pull-out opening is located at one side of the first air inlet grille in the first direction or the second direction; or, One of the first direction and the second direction is the circumferential direction of the air inlet, and the other is the radial direction of the air inlet.

7. The air conditioner of claim 5, wherein The first air inlet grille further comprises a plurality of third ribs arranged in the first grille area and spaced apart in the second direction, and the first ribs and the third ribs arranged intersectingly define the first grille holes; and / or The first air inlet grille further comprises a plurality of fourth ribs arranged in the second grille area and spaced apart in the fourth direction, and the second ribs and the fourth ribs arranged intersectingly define the second grille holes.

8. The air conditioner of claim 7, wherein The third direction is parallel to the first direction, and the fourth direction is parallel to the second direction, The first air inlet grille comprises third ribs and fourth ribs, and the third ribs and the fourth ribs are connected one by one.

9. The air conditioner of claim 1, wherein The fresh air module is configured to satisfy at least one of the following conditions: Condition A1, the first air inlet grille is configured as a flat grille, or the first air inlet grille is configured as a curved plate grille protruding towards the air inlet frame; Condition A2, the filter assembly is opposite to the air inlet, and the filter assembly comprises a filter screen support and a filter screen core, the filter screen core is mounted on the filter screen support, and the filter screen core is arc-shaped and protrudes in a direction away from the air inlet.

10. The air conditioner of claim 9, wherein The fresh air module satisfies condition A2, a cavity wall of the mounting cavity is provided with first guide ribs and second guide ribs arranged in the axial direction of the air inlet and extending in an arc shape, the filter assembly is slidingly fitted between the first guide ribs and the second guide ribs, and one of the first guide ribs and the second guide ribs is formed on the air inlet frame, and the other is formed on the volute.

11. The air conditioner of claim 1, wherein The first air inlet grille is integrally connected to the volute, and the fresh air module further comprises: An air guide ring is arranged around the air inlet, and a windward end of the air guide ring is integrally connected to the first air inlet grille and the volute, and the diameter of the air guide ring is smaller than the diameter of the fan wheel of the fan assembly.

12. The air conditioner of claim 1, wherein The volute comprises a volute main body and a volute cover plate, the air inlet is formed on the volute main body, the volute main body defines a fan wheel cavity in communication with the air inlet, the volute cover plate is arranged outside the volute main body and defines a sound attenuation cavity with the volute main body, and the volute main body is provided with a plurality of sound attenuation holes communicating the fan wheel cavity and the sound attenuation cavity.

13. The air conditioner of claim 12, wherein The fan assembly further comprises a motor and a fan wheel arranged in the fan wheel cavity, the motor is mounted on the volute main body and connected to the fan wheel, the volute cover plate is arranged on the side of the volute main body axially away from the air inlet frame, The volute body forms a limiting groove, the sound holes are formed on a groove bottom wall of the limiting groove, a plurality of the sound holes are arranged around the motor, and the volute cover plate is limitedly fitted in the limiting groove.

14. The air conditioner of claim 13, wherein A mounting portion is formed on the groove bottom wall of the limiting groove, the mounting portion is outwardly convex and defines a mounting groove for accommodating the motor in the wind wheel cavity, a threading hole for threading a connecting line of the motor is formed on the mounting portion, a through hole is formed on the volute cover plate, the mounting portion is fitted in the through hole, and the threading hole is exposed to the volute cover plate.

15. The air conditioner of claim 1, wherein The air inlet duct further has an indoor air inlet, and the fresh air module comprises a second air inlet grille arranged at the indoor air inlet. The air conditioner further comprises: A rear shell body, at least the air inlet frame is arranged in the rear shell body, first and second inlets and an opening are formed on the rear shell body and are arranged at intervals, the first inlet is opposite to the fresh air inlet, the second inlet is opposite to the indoor air inlet, and the opening is opposite to the pull-out opening; A first valve movably arranged at the fresh air inlet to open or close the fresh air inlet or the first inlet; A second valve movably arranged at the second inlet to open or close the second inlet, and the second air inlet grille is inwardly recessed in a direction away from the second valve.

16. The air conditioner according to any one of claims 1-15, wherein The filter assembly has a handle portion outside the pull-out opening, The air conditioner further comprises: A rear shell body, the air inlet frame and the fan assembly are arranged in the rear shell body, first and second inlets and an opening are formed on the rear shell body and are arranged at intervals, the first inlet is opposite to the fresh air inlet, the opening is opposite to the pull-out opening, the handle portion is arranged at the opening, and an outer surface of the handle portion is flush with an outer surface of the rear shell body or is inwardly recessed relative to the outer surface of the rear shell body.

17. The air conditioner of claim 16, wherein The fresh air module is configured to satisfy at least one of the following conditions: A distance between a side edge of the first grille area away from the pull-out opening and the opening is L2, and L2≥80 mm; A minimum width of the opening is B2, and B2≤40 mm; The handle portion comprises a first handle plate and a second handle plate, the second handle plate is arranged adjacent to the opening and is bently connected to an edge of the first handle plate, so that the first handle plate and the second handle plate define a hand holding groove on a side of a slot opening toward a width direction of the opening, an end of the second handle plate away from the first handle plate forms a hand holding avoiding groove in communication with the hand holding groove, and a depth of the hand holding avoiding groove is less than a width of the second handle plate.

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