Casing and air conditioner with same

Abstract

This utility model discloses a housing and an air conditioner having the same, relating to the field of air conditioner technology. The housing has a first side and a second side, with a heat exchange air inlet on the second side. The housing is provided with mounting rails for installing a filter. Both the first side and the heat exchange air inlet extend along a first direction. At least three mounting rails are arranged at intervals along the first direction. The two outermost mounting rails are edge rails, and the remaining rails are middle rails. Each mounting rail includes a first section adjacent to the first side. The vertical distance between the first section of the edge rail and the first side is greater than the vertical distance between the first section of the middle rail and the first side. This housing improves the stress and deformation conditions on the filter, achieving dual protection for the heat exchanger.

Description

Technical Field

[0001] This application belongs to the field of air conditioner technology. Background Technology

[0002] Driven by market demand for slim and aesthetically pleasing air conditioners, there are increasingly higher requirements for reducing the thickness and size of air conditioners. Air conditioners are becoming slimmer and longer, but to ensure heat exchange efficiency, the heat exchanger structure remains largely unchanged, which necessitates a more compact layout of components.

[0003] One key aspect is that a filter screen needs to be installed on the windward side of the heat exchanger at the air inlet to prevent excessive impurities from being introduced and causing blockages. However, the filter screen is relatively long and easily deformed by external impacts, potentially compressing the heat exchanger and causing the fins to collapse, thus affecting heat exchange performance. Solving this problem is one area that requires further research. 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 a housing to reduce the compression of the heat exchanger when the filter screen is subjected to impact.

[0005] This utility model also proposes an air conditioner having the above-mentioned casing.

[0006] According to an embodiment of the present invention, the housing has an interior cavity for accommodating at least a heat exchanger. The outer surface of the housing includes a first side and a second side located on adjacent sides of the housing, with a heat exchange air inlet on the second side.

[0007] The housing is provided with a mounting rail for installing a filter screen. One end of the mounting rail is located on the side of the first side facing the second side, and the other end of the mounting rail is located on the side of the heat exchange air inlet away from the first side.

[0008] Both the first side and the heat exchange air inlet extend along the first direction. There are at least three mounting rails arranged at intervals along the first direction. Among the at least three mounting rails, the two outermost mounting rails are edge rails, and the remaining mounting rails are middle rails.

[0009] Each of the mounting rails includes a first rail segment adjacent to the first side.

[0010] Wherein, the vertical distance between the first track segment of the edge guide rail and the first side surface is greater than the vertical distance between the first track segment of the middle guide rail and the first side surface.

[0011] According to the casing of this utility model embodiment, the mounting rails are arranged such that the mounting rails in the central region are farther from the heat exchanger, while the mounting rails on the outermost sides are closer to the heat exchanger. When the filter screen is impacted, the central region has relatively weaker support capacity. Therefore, setting the mounting rails in the central region farther from the heat exchanger reduces the pressure of filter screen deformation on the heat exchanger, thus reducing the impact on the heat exchanger's performance. Moreover, with the filter screen supported by the central and edge rails, at least the portion supported by the first rail section will be tilted relative to the heat exchanger. When impacted, the external impact force can be better transmitted along the filter screen to both sides. The casing has greater structural rigidity and strength at the edge rails on both sides, making it less prone to deformation under stress.

[0012] The solution proposed in this application can improve the stress and deformation of the filter screen without increasing the overall thickness of the air conditioner, thereby achieving dual protection for the heat exchanger.

[0013] In some embodiments, the housing is provided with a first rib, one end of which is connected to the first section of the edge guide rail, and the other end of which is connected to the first section of the intermediate guide rail.

[0014] The vertical distance from the first stiffener to the first side gradually decreases from the edge guide rail to the middle guide rail.

[0015] Specifically, there are at least two first stiffening plates, which are arranged at intervals along the length of the first track segment. A second stiffening plate connects two adjacent first stiffening plates.

[0016] In some embodiments, the outer surface of the housing further includes a stepped surface, which is connected to the side of the first side facing the second side, and one end of the mounting rail is connected to the stepped surface. The stepped surface is also provided with a fastener for securing the filter screen.

[0017] In some specific embodiments, at least two spaced-apart fasteners are provided between the edge guide rail and the middle guide rail.

[0018] From the edge guide rail to the middle guide rail, the vertical distance from the buckle to the first side gradually decreases.

[0019] Specifically, the housing is provided with a first stiffening plate, which is connected to the stepped surface and its two ends are respectively connected to the edge guide rail and the middle guide rail;

[0020] The first stiffener plate is provided with clearance holes corresponding to the fastener.

[0021] In some embodiments, the housing includes a reinforcing rib, one end of which is located on the side of the first side facing the second side, and the other end is located on the side of the heat exchange air inlet away from the first side.

[0022] There are two intermediate guide rails, which are connected to both sides of the reinforcing rib plate. Each edge guide rail and the adjacent intermediate guide rail are used to support one of the filter screens.

[0023] In some embodiments, each of the mounting rails further includes: a second rail segment located on the side of the heat exchange inlet facing the accommodating cavity; and an arc-shaped rail segment connecting the first rail segment and the second rail segment.

[0024] Specifically, the second side is located at the top of the housing, and the second section of the edge guide rail, the second section of the middle guide rail, and the second side are equidistant from each other.

[0025] An air conditioner according to an embodiment of the present invention includes: a housing, wherein the housing is as described above, and the housing is further provided with a heat exchange air outlet; a base disposed within the accommodating cavity, wherein a volute air duct is formed thereon; a heat exchange fan disposed within the volute air duct, wherein, when rotating, it draws air into the volute air duct through the heat exchange air inlet and blows air from the volute air duct out through the heat exchange air outlet; a heat exchanger disposed within the accommodating cavity and mounted on the base, wherein a portion of the heat exchanger is located between the heat exchange fan and a first side surface of the housing, and a portion of the heat exchanger is located between the heat exchange fan and a second side surface of the housing; and a filter screen mounted on the edge guide rail and the intermediate guide rail.

[0026] 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

[0027] 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:

[0028] Figure 1 These are perspective views of the air conditioner in some embodiments;

[0029] Figure 2 This is another perspective view of the air conditioner with the panel hidden in some embodiments;

[0030] Figure 3 This is a cross-sectional view of the air conditioner from the side in some embodiments;

[0031] Figure 4This is a top-view cross-sectional view of the air conditioner in some embodiments.

[0032] Figure label:

[0033] Air conditioner 100

[0034] Casing 1, Receptacle S1, Heat exchange air inlet 11, Heat exchange air outlet 12

[0035] First side surface 131, second side surface 132, stepped surface 133

[0036] Mounting guide rail 15

[0037] Edge guide rail 15A, middle guide rail 15B,

[0038] First track section 151, second track section 152, curved track section 153

[0039] First stiffening plate 161, second stiffening plate 162, clearance hole 163

[0040] 17. Fasteners

[0041] 18. Reinforcing ribs

[0042] Panel 3, heat exchanger 53, base 7, volute air duct S2. Detailed Implementation

[0043] 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.

[0044] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this utility model, it should be noted 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.

[0046] The following is for reference. Figures 1-4 Description of housing 1 according to an embodiment of the present utility model.

[0047] like Figure 1 As shown, housing 1 is the housing of air conditioner 100. The type of air conditioner 100 is not limited and can be any type. Figure 1 The wall-mounted air conditioner indoor unit shown can also be a floor-standing air conditioner indoor unit. It is also possible that in some designs, the air conditioner 100 is an integrated indoor and outdoor unit, as long as the air conditioner 100 is equipped with a heat exchanger 53 and a filter (not shown in the figure).

[0048] According to the embodiment of this utility model, the housing 1, such as Figure 2 and Figure 3 As shown, the housing 1 is provided with a heat exchange air inlet 11, and the interior of the housing 1 forms a receiving cavity S1 that accommodates at least the heat exchanger 53. The heat exchange air inlet 11 is connected to the receiving cavity S1. At least part of the filter screen is installed on the heat exchange air inlet 11, or between the heat exchange air inlet 11 and the heat exchanger 53, to filter out impurities in the air during air intake, especially lint, to prevent impurities from remaining on the surface of the heat exchanger 53 and affecting airflow.

[0049] Specifically, such as Figures 2-4 As shown, the outer surface of the housing 1 includes a first side 131 and a second side 132 located on two adjacent sides of the housing 1. A heat exchange air inlet 11 is provided on the second side 132. The housing 1 is provided with a mounting rail 15 for installing a filter screen. One end of the mounting rail 15 is located on the side of the first side 131 facing the second side 132, and the other end of the mounting rail 15 is located on the side of the heat exchange air inlet 11 away from the first side 131.

[0050] For ease of description, this description is based on... Figure 2The example shown is used for further explanation. The outer surface of the casing 1 includes a first side 131 located at the front of the casing 1 and a second side 132 located at the top. In other words, the first side 131 is part of the front surface of the casing 1, and the second side 132 is part of the top surface of the casing 1. The heat exchange air inlet 11 is located at the top of the casing 1. One end of the mounting rail 15 is located above the first side 131, and the other end is located at the rear end of the heat exchange air inlet 11. After the filter is installed, part of the filter will be placed above the heat exchanger 53 and below the heat exchange air inlet 11, while another part will be placed above the first side 131 and in front of the heat exchanger 53. The filter partially encloses the heat exchanger 53, allowing air drawn in from the heat exchange air inlet 11 to be blown into the heat exchanger 53 from both above and in front, thus maximizing the airflow area of ​​the heat exchanger 53 and increasing its heat exchange efficiency. In some installation methods, the filter screen can be inserted above the first side 131, and then the filter screen can be gradually slid upward along the installation guide rail 15 until the upper edge of the filter screen reaches the rear end of the heat exchange air inlet 11, which can ensure that the filter screen can completely cover the heat exchange air inlet 11.

[0051] Optionally, such as Figure 1 As shown, the air conditioner 100 also includes a panel 3, which is mounted on the casing 1. The panel 3 can cover the front side of the casing 1, making the air conditioner 100 more aesthetically pleasing. Specifically, the panel 3 is mounted on a first side surface 131, which forms the mounting surface of the panel 3. When the heat exchanger 53 is installed inside the casing 1 via the base 7, the first side surface 131 can also serve as the mounting surface of the base 7, or the inner side surface of the casing 1 can serve as the mounting surface of the base 7, with the inner side surface parallel to the first side surface 131. This ensures that the heat exchanger 53 and the first side surface 131 form a fixed mounting position.

[0052] In this application, the first side 131 and the heat exchange air inlet 11 are both extended along the first direction. There are at least three mounting rails 15 and they are arranged at intervals along the first direction. Among the at least three mounting rails 15, the two outermost mounting rails 15 are edge rails 15A, and the remaining mounting rails 15 are middle rails 15B.

[0053] Here, the heat exchanger 53 also extends along the first direction. At least three mounting rails 15 are arranged at intervals along the first direction, allowing the filter screen to be supported by multiple mounting rails 15 when the first direction is long. The edge rails 15A on both sides are fitted with the filter screen to prevent the filter screen edges from warping, while the middle rail 15B in the middle is fitted with the filter screen to prevent the filter screen from collapsing in the central area. This allows the filter screen to withstand wind pressure without sticking tightly to the heat exchanger 53, ensuring sufficient airflow capacity.

[0054] Specifically, each mounting rail 15 includes a first rail segment 151 adjacent to the first side 131.

[0055] Among them, such as Figure 2 and Figure 4 As shown, the vertical distance L1 between the first track segment 151 of the edge guide rail 15A and the first side surface 131 is greater than the vertical distance L2 between the first track segment 151 of the middle guide rail 15B and the first side surface 131.

[0056] According to the housing 1 of this embodiment, the mounting rails 1515 are configured such that the mounting rail 15 in the middle region (i.e., the middle rail 15B) is farther away from the heat exchanger 53, while the mounting rails 15 on the outermost sides (i.e., the edge rails 15A) are closer to the heat exchanger 53. When the filter screen is impacted, the middle region has relatively weaker support. Therefore, the mounting rails 15 in the middle region are positioned farther away from the heat exchanger 53, resulting in a larger gap between the filter screen and the heat exchanger 53. This reduces the pressure of filter screen deformation on the heat exchanger 53, especially reducing the possibility of the fins on the heat exchanger 53 collapsing due to filter screen compression, thereby reducing the impact on the heat exchange performance of the heat exchanger 53.

[0057] Moreover, after the filter screen is supported by the edge guide rail 15A and the middle guide rail 15B, the part of the filter screen supported by the first rail section 151 will be tilted relative to the heat exchanger 53.

[0058] Understandably, since the heat exchange fan, heat exchanger 53, etc., are installed inside the accommodating cavity S1 enclosed by the mounting rail 15, and other internal structures of the air conditioner 100 such as the controller, display module, and motor are installed on both sides of the casing 1, the casing 1 can obtain more structural support at the edge rail 15A. That is to say, the rigidity of the casing 1 is higher in the area where the edge rail 15A is located, and relatively lower in the central area. The filter screen, at least in the part supported by the first rail section 151, will be tilted relative to the heat exchanger 53. When subjected to impact, the filter screen can transfer more of the external impact force to the positions of the edge rails 15A on both sides of the casing 1. The casing 1 has greater structural rigidity and strength at the edge rails 15A on both sides, and is less prone to deformation under stress.

[0059] Therefore, the solution of this application can improve the stress and deformation of the filter screen and achieve dual protection for the heat exchanger 53 without increasing the overall thickness of the air conditioner 100, by designing that the edge guide rail 15A and the middle guide rail 15B are at least at different distances from the heat exchanger 53 in the first rail section 151.

[0060] In some embodiments, such as Figure 2 and Figure 4As shown, the housing 1 is provided with a first stiffening plate 161. One end of the first stiffening plate 161 is connected to the first rail segment 151 of the edge guide rail 15A, and the other end is connected to the first rail segment 151 of the middle guide rail 15B. The first stiffening plate 161 connects the edge guide rail 15A and the middle guide rail 15B, so that the filter screen can also be supported between the edge guide rail 15A and the middle guide rail 15B.

[0061] Specifically, from the edge guide rail 15A to the middle guide rail 15B, the vertical distance L3 from the first stiffening plate 161 to the first side surface 131 gradually decreases. This ensures that the filter screen remains tilted between the edge guide rail 15A and the middle guide rail 15B, improving the filter screen's ability to transmit external impacts to the edge guide rail 15A.

[0062] Here is as Figure 4 As shown, since the first stiffener 161 is inclined relative to the first side 131, the vertical distance L3 from the first stiffener 161 to the first side 131 is larger closer to the edge guide rail 15A, and smaller closer to the middle guide rail 15B.

[0063] Specifically, such as Figure 2 As shown, there are at least two first stiffening plates 161, which are spaced apart along the length of the first track segment 151. A second stiffening plate 162 connects two adjacent first stiffening plates 161. This further strengthens the support of the filter screen between the edge guide rail 15A and the middle guide rail 15B. Furthermore, between the edge guide rail 15A and the middle guide rail 15B, at least two first stiffening plates 161 are spaced apart along a first direction.

[0064] In some embodiments, such as Figure 2 As shown, the outer side of the housing 1 also includes a stepped surface 133. The stepped surface 133 is connected to the side of the first side 131 facing the second side 132, and one end of the mounting rail 15 is connected to the stepped surface 133. The stepped surface 133 is provided so that after the filter screen is installed on the mounting rail 15, the end of the filter screen can abut against the stepped surface 133, and the filter screen is limited.

[0065] The stepped surface 133 is also equipped with a clip 17 for securing the filter screen. This facilitates the removal and installation of the filter screen, and also makes it easier to fix the filter screen after installation, preventing it from becoming loose and generating excessive noise.

[0066] In some specific embodiments, such as Figure 2 As shown, at least two spaced-apart fasteners 17 are provided between the edge guide rail 15A and the middle guide rail 15B.

[0067] From the edge guide rail 15A to the middle guide rail 15B, the vertical distance L4 between the fastener 17 and the first side 131 gradually decreases. Here, the fastener 17 is used to limit the filter screen. The inclined setting of the fastener 17 itself is conducive to a more uniform stress at the mating point of the inclined filter screen with the fastener 17, avoiding excessive constraint that could lead to deformation at this point.

[0068] Specifically, there are at least two latching members 17 from the edge guide rail 15A to the middle guide rail 15B. The closer to the edge guide rail 15A, the greater the vertical distance L4 from the latching member 17 to the first side surface 131. The closer to the middle guide rail 15B, the smaller the vertical distance L4 from the latching member 17 to the first side surface 131. This ensures that the filter screen remains tilted at least when engaged with the first rail segment 151.

[0069] Specifically, such as Figure 2 As shown, the housing 1 is provided with a first rib 161, which connects to the stepped surface 133 and is connected at both ends to the edge guide rail 15A and the middle guide rail 15B, respectively. The first rib 161 has a clearance hole 163 corresponding to the fastener 17. Thus, when the fastener 17 fastens the filter screen, the filter screen can deform towards the clearance hole 163 under force. The clearance hole 163 provides a certain amount of movement for the filter screen, improving assembly convenience. The same applies during disassembly.

[0070] In some embodiments, such as Figure 2 and Figure 3 As shown, the housing 1 includes a reinforcing rib 18. One end of the reinforcing rib 18 is located on the side of the first side 131 facing the second side 132, and the other end is located on the side of the heat exchange air inlet 11 away from the first side 131. In this way, the reinforcing rib 18 can improve the support effect of the filter screen in the middle area, further increase the rigidity in this area, and reduce the possibility of deformation.

[0071] Specifically, there are two intermediate guide rails 15B, which are connected to both sides of the reinforcing rib plate 18. Each edge guide rail 15A and the adjacent intermediate guide rail 15B are used to support a filter screen. In this way, the two filter screens are assembled separately, which reduces the assembly difficulty and minimizes mutual interference.

[0072] In some embodiments, such as Figure 2 and Figure 3 As shown, each mounting rail 15 further includes a second rail section 152 and an arc-shaped rail section 153. The second rail section 152 is located on the side of the heat exchange inlet 11 facing the receiving cavity S1, and the arc-shaped rail section 153 connects the first rail section 151 and the second rail section 152. This allows the filter screen to be supported on both sides of the heat exchanger 53, reduces stress concentration at the filter, and improves the support effect on the filter screen by utilizing the arc-shaped rail section 153, reducing the possibility of filter screen deformation at this location.

[0073] Specifically, such as Figure 2As shown, the second side 132 is located at the top of the housing 1. The second rail segment 152 of the edge guide rail 15A and the second rail segment 152 of the middle guide rail 15B are equidistant from the second side 132. That is, above the heat exchanger 53, the second rail segment 152 of the edge guide rail 15A and the second rail segment 152 of the middle guide rail 15B are equidistant from the heat exchanger 53. This arrangement avoids excessive deformation of the filter screen and reduces assembly difficulty. Moreover, it is understandable that the heat exchanger 53 is typically located at this position... Figure 3 As shown, it is shaped like a top, and the heat exchanger 53 here has a large structural rigidity and is not easily deformed by compression.

[0074] In summary, the casing 1 designed in this application utilizes the mounting rail 15 to increase the distance between the weak point of the heat exchanger 53 and the filter screen, thereby achieving a greater safety distance and reducing the possibility of the upper fins collapsing.

[0075] refer to Figures 1-4 This invention describes an air conditioner according to an embodiment of the present invention.

[0076] Common air conditioners include split-type air conditioners, which consist of an indoor unit and an outdoor unit. The indoor and outdoor units are connected by pipes to transfer refrigerant. The indoor unit includes an indoor heat exchanger and a heat exchange fan. The outdoor unit includes a compressor, an outdoor heat exchanger, an outdoor fan, and a throttling device. The compressor, outdoor heat exchanger, throttling device, and indoor heat exchanger, connected in sequence, form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the air through the outdoor and indoor heat exchangers to achieve the air conditioner's cooling or heating mode.

[0077] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0078] The outdoor heat exchanger is configured to exchange heat between outdoor air and refrigerant transported within it. For example, in the cooling mode of the air conditioner, the outdoor heat exchanger operates as a condenser, causing the refrigerant compressed by the compressor to dissipate heat to the outdoor air and condense. In the heating mode of the air conditioner, the outdoor heat exchanger operates as an evaporator, causing the depressurized refrigerant to absorb heat from the outdoor air and evaporate.

[0079] The outdoor fan is configured to draw in outside air into the outdoor unit and expel the outdoor air, which has been heated by the outdoor heat exchanger, to the outside. The outdoor fan provides power for the flow of outdoor air.

[0080] A throttling device connects the outdoor and indoor heat exchangers. It regulates the refrigerant pressure flowing through both devices, thereby adjusting the refrigerant flow rate between them. The flow rate and pressure of the refrigerant between the outdoor and indoor heat exchangers affect their heat exchange performance. The throttling device can be a throttling tube, an electronic valve, etc. When the throttling device is an electronic valve, its opening is adjustable to regulate the refrigerant flow rate and pressure.

[0081] Some designs also include a four-way valve in the air conditioner. The four-way valve is connected to the refrigerant circuit and is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner can switch between cooling mode and heating mode.

[0082] The indoor heat exchanger is configured to exchange heat between indoor air and the refrigerant transported within it.

[0083] The heat exchange fan is configured to draw indoor air into the indoor unit and deliver the indoor air, after heat exchange with the indoor heat exchanger, into the room, providing power for the flow of indoor air.

[0084] Air conditioners also include a control unit, which is mainly used to control the compressor's operating frequency and the opening degree of the throttling device. Some control units can also control the speed of the outdoor fan and the heat exchange fan. The control unit is connected to the compressor, throttling device, outdoor fan, and heat exchange fan via data cables to transmit communication information.

[0085] The control device includes a processor, which may include a central processing unit (CPU), a microprocessor, or an application-specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device.

[0086] Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or keyboard drive).

[0087] According to the embodiments of this application, the air conditioner 100, such as Figure 1As shown, it includes: a housing 1, which is the housing 1 described in the above embodiment. An accommodating cavity S1 is formed inside the housing 1, and a heat exchange air inlet 11 and a heat exchange air outlet 12 are formed on the housing 1. The housing 1 serves a protective function and constitutes the overall external structure of the air conditioner 100.

[0088] When the air conditioner 100 is a wall-mounted unit, the casing 1 is an elongated rectangular shell. For example, the length of the casing 1 is set horizontally, meaning the casing 1 is installed horizontally on the wall. In actual products, to drain condensate, in some embodiments the casing 1 is installed horizontally on the wall, forming a small angle with the horizontal plane.

[0089] Reference Figure 2 The air conditioner 100 also includes a heat exchanger 53, which is disposed within the accommodating cavity S1. As described above, the heat exchanger 53 is a loop in the refrigerant circuit, through which refrigerant flows to cool or heat the air flowing from the surface of the heat exchanger 53.

[0090] In the air conditioner 100, the heat exchanger 53 typically extends along the length of the casing 1. For example, the heat exchanger 53 is a two-fold or three-fold heat exchanger, and each fold of the heat exchanger 53 is a plate-like structure extending along the length. The length direction of the casing 1 is the first direction described above.

[0091] The air conditioner 100 also includes a base 7, which is disposed within the accommodating cavity S1. The base 7 is an internal mounting support structure, and the heat exchanger 53 can be mounted on the base 7. In this embodiment, a volute air duct S2 is formed on the base 7. After indoor air enters the casing 1, it is guided by the volute air duct S2 to ensure that the resistance encountered by the indoor air when flowing through the heat exchanger 53 is small.

[0092] The air conditioner 100 also includes a heat exchange fan (not shown in the figure), which is disposed within the volute duct S2. In this application, the heat exchange fan can be a cross-flow fan, which has low noise and large air volume. Furthermore, the outlet air velocity of the cross-flow fan is more uniformly distributed along its axial direction, which is beneficial for increasing the air delivery distance and range. Moreover, using a cross-flow fan, and arranging it along its length, facilitates the flow of the driven airflow through the entire heat exchanger 53, ensuring a balanced heat exchange efficiency across all parts of the heat exchanger 53.

[0093] A portion of the heat exchanger 53 is located between the heat exchange fan and the first side 131 of the housing 1, and a portion of the heat exchanger 53 is located between the heat exchange fan and the second side 132 of the housing 1.

[0094] The air conditioner 100 also includes a filter (not shown), which is mounted on the edge guide rails 15A and the middle guide rail 15B. The filter, at least in the portion supported by the first rail section 151, is inclined relative to the heat exchanger 53. Upon impact, the filter can transfer more of the external impact force to the locations of the edge guide rails 15A on both sides of the casing 1. The casing 1 has greater structural rigidity and strength at the edge guide rails 15A on both sides, making it less prone to deformation under stress.

[0095] Other components of the air conditioner 100 according to the present invention, such as the controller and its operation, are known to those skilled in the art and will not be described in detail here.

[0096] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A housing (1), wherein the interior of the housing (1) is formed with a cavity (S1) for accommodating at least a heat exchanger (53), and the outer side of the housing (1) includes a first side (131) and a second side (132) located on adjacent sides of the housing (1), wherein a heat exchange air inlet (11) is provided on the second side (132). The housing (1) is provided with a mounting rail (15) for installing a filter screen. One end of the mounting rail (15) is located on the side of the first side (131) facing the second side (132), and the other end of the mounting rail (15) is located on the side of the heat exchange air inlet (11) away from the first side (131). The first side (131) and the heat exchange air inlet (11) are both extended along the first direction. There are at least three mounting rails (15) and they are arranged at intervals along the first direction. Among the at least three mounting rails (15), the two outermost mounting rails (15) are edge rails (15A), and the remaining mounting rails (15) are middle rails (15B). Its features are, Each of the mounting rails (15) includes: The first track segment (151) adjacent to the first side (131); The vertical distance (L1) between the first track segment (151) of the edge guide rail (15A) and the first side surface (131) is greater than the vertical distance (L2) between the first track segment (151) of the middle guide rail (15B) and the first side surface (131).

2. The housing (1) according to claim 1, characterized in that The housing (1) is provided with a first stiffener (161), one end of which is connected to the first rail segment (151) of the edge guide rail (15A), and the other end is connected to the first rail segment (151) of the intermediate guide rail (15B). Among them, from the edge guide rail (15A) to the middle guide rail (15B), the vertical distance (L3) from the first stiffener (161) to the first side surface (131) gradually decreases.

3. The housing (1) according to claim 2, characterized in that There are at least two first stiffening plates (161), and they are arranged at intervals along the length of the first track segment (151); A second stiffener (162) connects two adjacent first stiffeners (161).

4. The housing (1) according to claim 1, characterized in that The outer side of the housing (1) also includes a stepped surface (133), which is connected to the side of the first side (131) facing the second side (132), and one end of the mounting rail (15) is connected to the stepped surface (133). The stepped surface (133) is also provided with a fastener (17) for securing the filter screen.

5. The housing (1) according to claim 4, characterized in that At least two spaced-apart fasteners (17) are provided between the edge guide rail (15A) and the middle guide rail (15B); From the edge guide rail (15A) to the middle guide rail (15B), the vertical distance (L4) from the buckle (17) to the first side (131) gradually decreases.

6. The housing (1) according to claim 4, characterized in that The housing (1) is provided with a first stiffening plate (161), which is connected to the stepped surface (133) and its two ends are respectively connected to the edge guide rail (15A) and the middle guide rail (15B). The first stiffener (161) is provided with a clearance hole (163) corresponding to the buckle (17).

7. The housing (1) according to any one of claims 1-6, characterized in that The housing (1) includes a reinforcing rib (18), one end of which is located on the side of the first side (131) facing the second side (132), and the other end is located on the side of the heat exchange air inlet (11) away from the first side (131). There are two intermediate guide rails (15B) connected to both sides of the reinforcing rib plate (18), and each edge guide rail (15A) and the adjacent intermediate guide rail (15B) are used to support one of the filter screens.

8. The housing (1) according to any one of claims 1-6, characterized in that Each of the mounting rails (15) also includes: The second track section (152) is located on the side of the heat exchange air inlet (11) facing the accommodating cavity (S1); An arc-shaped track segment (153) is connected between the first track segment (151) and the second track segment (152).

9. The housing (1) according to claim 8, characterized in that The second side (132) is located on the top of the housing (1), and the second rail segment (152) of the edge guide rail (15A), the second rail segment (152) of the middle guide rail (15B) and the second side (132) are equidistant from each other.

10. An air conditioner (100) characterized by comprising: include: The housing (1) is the housing (1) according to any one of claims 1-9, and the housing (1) is further provided with a heat exchange air outlet (12); A base (7) is disposed in the accommodating cavity (S1), and a volute air duct (S2) is formed thereon; A heat exchange fan is installed inside the volute duct (S2) so that when it rotates, it draws air into the volute duct (S2) through the heat exchange inlet (11) and blows the air in the volute duct (S2) out from the heat exchange outlet (12). A heat exchanger (53) is disposed in the accommodating cavity (S1) and mounted on the base (7). A portion of the heat exchanger (53) is located between the heat exchange fan and the first side (131) of the housing (1), and a portion of the heat exchanger (53) is located between the heat exchange fan and the second side (132) of the housing (1). A filter screen is mounted on the edge guide rail (15A) and the middle guide rail (15B).

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