Cabinet type indoor unit of air conditioner

Abstract

The application provides a cabinet type indoor air conditioner, which comprises a shell, a fresh air volute, a dirty air volute, a mounting bracket, a total heat exchange core and a guide wall. The shell has two opposite side walls, one of which is provided with a disassembly opening, and a mounting cavity is arranged in the shell. In the front-rear direction of the shell, the center of the opening of the mounting cavity is staggered with the center of the disassembly opening and is close to the rear side of the shell. The fresh air volute and the dirty air volute are arranged in the shell and form a fresh air duct and a dirty air duct respectively. The mounting cavity is located at the intersection of the two air ducts. The mounting bracket can be detachably mounted in the mounting cavity through the disassembly opening. The total heat exchange core is mounted in the mounting bracket. The guide wall is arranged in the shell, and the guide surface of the guide wall can guide the mounting bracket to be inserted into the disassembly opening along a first direction and gradually turn to the end of the mounting cavity away from the disassembly opening when being inserted. The difficulty of disassembling and assembling the total heat exchange core is reduced, and the convenience requirement of daily cleaning and replacement is met.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a cabinet-type air conditioner indoor unit. Background Technology

[0002] As people's requirements for indoor air quality and air conditioning energy efficiency increase, cabinet air conditioner indoor units with bidirectional fresh air function have gradually become the mainstream products in the market. The core of this is to realize the energy exchange between outdoor fresh air and indoor stale air through a total heat exchanger, thereby reducing the energy consumption of the air conditioning system while introducing fresh air.

[0003] However, in related technologies, the total heat exchange core needs to be inserted directly into the ventilation cavity by the user's hand. When disassembling, the front panel of the air conditioner must be opened first to access the exchange core located in the air intake cavity of the volute. This process not only requires multiple steps such as disassembling the front panel and locating the exchange core, but may also cause damage to the core (such as paper heat exchange sheets) due to direct hand contact. As a result, the disassembly and assembly of the total heat exchange core is difficult and cannot meet the needs of convenient daily cleaning and replacement of the total heat exchange core. Utility Model Content

[0004] This application discloses a cabinet-type air conditioner indoor unit, which can reduce the difficulty of disassembling and assembling the total heat exchange core, so as to meet the needs of daily cleaning and replacement of the total heat exchange core.

[0005] To achieve the above objectives, this application discloses a cabinet-type air conditioner indoor unit, comprising:

[0006] The housing has two sidewalls that are arranged opposite each other along the width direction of the housing. One of the sidewalls of the housing has a disassembly opening. The housing has an installation cavity. Along the front-rear direction of the housing, the center of the opening of the installation cavity is offset from the center of the disassembly opening. The center of the opening of the installation cavity is closer to the rear side of the housing than the center of the disassembly opening.

[0007] Fresh air volute, wherein the fresh air volute is disposed inside the housing, and a fresh air duct is formed inside the fresh air volute;

[0008] A sludge volute is disposed inside the housing, and a sludge duct is formed inside the sludge volute.

[0009] The mounting cavity is located at the intersection of the fresh air duct and the waste air duct;

[0010] The mounting bracket is detachably installed in the mounting cavity through the disassembly port. The mounting bracket has a first end and a second end. When the mounting bracket is installed in the mounting cavity, the first end is the end away from the disassembly port, and the second end is the end close to the disassembly port.

[0011] A total heat exchange core is installed in the mounting bracket. The total heat exchange core is a cuboid and has a fresh air heat exchange channel and a waste air heat exchange channel that are respectively connected to the fresh air duct and the waste air duct.

[0012] A guide wall, disposed within the housing, has a guide surface. One end of the guide surface is connected to the end of the disassembly / removal port facing the rear side of the housing, and the other end is connected to the end of the mounting cavity away from the disassembly / removal port. The guide surface is configured to guide the mounting bracket to be inserted into the housing through the disassembly / removal port in a first direction, and to guide a second end of the mounting bracket to gradually turn towards the end of the mounting cavity away from the disassembly / removal port during insertion, so that the mounting bracket is installed within the mounting cavity.

[0013] Wherein, the first direction forms an acute angle with both the width direction and the front-back direction of the shell.

[0014] Therefore, compared to directly installing and removing the total heat exchange core from the housing, the installation and removal of the total heat exchange core by setting up a mounting bracket allows operators to apply force stably by holding the bracket, reducing the difficulty of alignment and improving installation efficiency. This reduces the difficulty of installing and removing the total heat exchange core, thus meeting the needs for convenient daily cleaning and replacement of the exchange core.

[0015] This application also provides a cabinet-type air conditioner indoor unit, wherein the guide surface includes:

[0016] A first guide segment extends along the first direction, with one end of the first guide segment positioned near the disassembly port to guide the mounting bracket toward the mounting cavity along the first direction when the mounting bracket enters the housing through the disassembly port.

[0017] The second guide segment has one end connected to the first guide segment and the other end connected to the end of the mounting cavity away from the disassembly port. The second guide segment has a first preset angle with the first guide segment and a second preset angle with the extension direction of the mounting cavity, so that the second end of the mounting bracket gradually turns to the end of the mounting cavity away from the disassembly port during the insertion process.

[0018] Thus, the straight guidance of the first guide section provides a clear track for the initial insertion. Even if the operator's judgment of the first direction is slightly off, the mounting bracket can return to the correct path under the constraint of the guide section, reducing the reliance on operating experience. The second guide section achieves gradual turning through a preset angle, avoiding the installation jamming caused by the hard turning that may occur with a traditional single guide surface, making the posture adjustment of the mounting bracket smoother and reducing structural friction loss during the insertion process.

[0019] This application also provides a cabinet-type air conditioner indoor unit, wherein the first preset included angle is an obtuse angle and the second preset included angle is an acute angle.

[0020] Thus, there are no sharp corners at the connection between the first and second guide sections. When the mounting bracket transitions from the first guide section to the second guide section, the change in the direction of movement is smoother, reducing mechanical resistance during insertion. The obtuse angle connection can also disperse the stress when the bracket contacts the guide surface, avoiding wear and deformation of the guide surface or bracket edge due to long-term disassembly and assembly, and extending the service life of the components.

[0021] This application also provides a cabinet-type air conditioner indoor unit, wherein the guide surface includes a third guide section, the third guide section is connected between the disassembly port and the first guide section, and when the mounting bracket is installed into the housing through the disassembly port, the third guide section can guide the first end to slide toward the first guide section, and after the first end contacts the second guide section, it can avoid the second end.

[0022] In this way, the third guide section guides the first end to slide towards the first guide section, directly locking the front end of the bracket to the guiding target. This avoids the incorrect posture that may occur when the first end is offset or the second end is stuck first, which may happen when there is no third guide section. It ensures the correct installation direction from the source, and is especially suitable for scenarios where the bracket is long and the structures at both ends are different, reducing installation errors caused by reversed end orientation.

[0023] This application also provides a cabinet-type air conditioner indoor unit, wherein the third guide section is a concave arc surface.

[0024] In this way, after the first end enters the concave arc surface area, the arc-shaped inner wall will constrain it from both sides, which not only prevents the first end from deviating to the left or right during the guidance process, but also reduces the frictional resistance at the time of contact through the arc transition. Even if there is a slight deviation in the angle of the first end when the operator inserts it, the arc structure of the concave arc surface can gradually correct the movement direction of the first end through its own curvature, guiding it to slide smoothly to the first guide section, which greatly reduces the risk of guidance failure caused by initial angle error. It is especially suitable for scenarios where the first end of the mounting bracket has an angular structure, avoiding the jamming caused by the collision between the angular corner and the planar guide section.

[0025] This application also provides a cabinet-type air conditioner indoor unit, wherein the mounting bracket includes:

[0026] The first baffle is used to close the disassembly port when the mounting bracket is installed in the mounting cavity;

[0027] The second baffle, when the mounting bracket is installed in the mounting cavity, is used to close the opening of the mounting cavity facing the disassembly port;

[0028] A connecting portion, which is connected between the first baffle and the second baffle, and at least a portion of the connecting portion has a tendency to extend forward along the direction from the second baffle to the first baffle.

[0029] Thus, when the mounting bracket is installed in the mounting cavity, the first baffle directly seals the disassembly port, preventing external dust and debris from entering the inner side of the housing through the disassembly port. This avoids dust adhering to the surface of the fresh air volute, the stale air volute, or the total heat exchange core, which would affect the airflow efficiency and heat exchange effect. The second baffle seals the opening of the mounting cavity facing the disassembly port, forming an isolation between the mounting cavity and other spaces in the housing. This prevents airflow in the mounting cavity (such as a small amount of condensate or airflow disturbance that may be generated during the heat exchange between fresh air and stale air) from penetrating into other areas inside the housing, thus avoiding any impact on the electrical components inside the housing. The dual sealing works synergistically to maintain the cleanliness of the inside of the housing and ensure the stability of the air conditioner's operation, reducing the risk of malfunctions caused by the intrusion of external impurities.

[0030] This application also provides a cabinet-type air conditioner indoor unit, wherein the guide surface is an arc-shaped surface, and the tangent direction of the guide surface at the entrance of the mounting cavity is parallel to the first direction.

[0031] Thus, the tangent direction of the arc-shaped surface at the entrance of the mounting cavity is consistent with the assembly / disassembly direction (i.e., the first direction) set by the mounting bracket. This means that when the mounting bracket enters and exits the mounting cavity along the first direction, it can move smoothly along the tangent direction of the entrance guide surface without being obstructed by the angle deviation of the guide surface.

[0032] This application also provides a cabinet-type air conditioner indoor unit, wherein the end of the first baffle is provided with a first inclined surface, and the peripheral wall of the disassembly port is provided with a second inclined surface that seals with the first inclined surface;

[0033] The end of the second baffle is provided with a first overlapping surface, and the opening of the mounting cavity facing the disassembly port is provided with a second overlapping surface that seals with the first overlapping surface.

[0034] Thus, when the mounting bracket is fully embedded in the mounting cavity, the first inclined surface of the first baffle and the second inclined surface of the disassembly port fit tightly together. Even if the shell is slightly deformed by temperature changes or vibration, the inclined surface structure can still maintain a good fit, effectively blocking external dust and moisture from entering the shell through the gaps in the disassembly port. Meanwhile, the first overlapping surface of the second baffle and the second overlapping surface of the mounting cavity can form a transverse sealing barrier at the opening of the mounting cavity, preventing the heat exchange airflow in the mounting cavity from flowing across with the airflow in other areas of the shell, and preventing condensate or dust from entering the mounting cavity and affecting the operation of the total heat exchange core. The dual sealing structure works together to improve the overall sealing performance of the shell.

[0035] This application also provides a cabinet-type air conditioner indoor unit, wherein along the front-rear direction of the housing, the sludge volute and the fresh air volute are arranged side by side in sequence, and the sludge volute is located in front of the fresh air volute;

[0036] After the mounting bracket is installed in the mounting cavity, the fresh air heat exchange channel extends vertically, and the waste air heat exchange channel extends along the front-rear direction of the housing.

[0037] Thus, by arranging the sludge and fresh air volutes side by side along the front and rear of the shell, excessive space is avoided by stacking them in the width or height direction of the shell. This allows the lateral space (width direction) to only accommodate the width of a single volute. The fresh air heat exchange channel extends vertically, while the sludge heat exchange channel extends front and rear, allowing the two airflows to flow in different directions. This reduces cross-interference between fresh and sludge airflows during the heat exchange process. At the same time, the layout of the sludge volute in front of the fresh air volute allows sludge air to enter the sludge heat exchange channel more quickly from the front area of ​​the shell, while fresh air flows stably through the fresh air heat exchange channel in the vertical direction. The two can fully contact and exchange heat, improving the overall heat exchange effect.

[0038] This application also provides a cabinet-type air conditioner indoor unit, wherein a fresh air outlet is provided on the fresh air volute, and the fresh air volute comprises:

[0039] A first extension portion extends upward, and the fresh air outlet is located at the end of the first extension portion;

[0040] The sludge volute is provided with a sludge outlet, and the sludge volute includes:

[0041] The second extension is parallel to the first extension, and the sewage outlet is located at the end of the second extension.

[0042] In this way, the vertical space (height direction) is extended in parallel by the first extension and the second extension, and is at the same height as the humidification component. This design concentrates the fresh air outlet, the waste air outlet and the humidification component in the same height area, forming a "functional concentration area". There is no need to reserve separate height space for each component, which greatly reduces the waste of vertical space and makes the shell thinner and lighter in the height direction, which is suitable for scenarios such as homes and offices where there is a need for compact air conditioning volume.

[0043] This application also provides a cabinet-type air conditioner indoor unit, wherein the distance between the mounting cavity and the bottom of the housing in the vertical direction is h, and 450mm≤h≤650mm.

[0044] Thus, the height range of 450mm to 650mm corresponds to the comfortable arm height for adults to operate while standing. Operators can easily insert or remove the mounting bracket with the total heat exchange core by aligning it with the side wall disassembly port without bending over, squatting, kneeling, or standing on tiptoe to raise their arms, reducing the difficulty of disassembly and assembly. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the indoor unit of the cabinet air conditioner provided in the embodiment of this application;

[0047] Figure 2 This is a side view of the indoor unit of the cabinet air conditioner provided in the embodiment of this application;

[0048] Figure 3 This is a schematic diagram of the internal structure of the indoor unit of the cabinet air conditioner provided in the embodiment of this application;

[0049] Figure 4 This is a schematic diagram of the internal structure of the indoor unit of the cabinet air conditioner provided in the embodiment of this application;

[0050] Figure 5 This is a schematic diagram of the fresh air volute and the sludge volute provided in the embodiments of this application;

[0051] Figure 6 This is a schematic diagram of the mounting bracket provided in an embodiment of this application;

[0052] Figure 7 This is a front view of the mounting bracket provided in an embodiment of this application;

[0053] Figure 8 This is a cross-sectional view of the mounting bracket provided in the embodiments of this application when it is not installed in the mounting cavity;

[0054] Figure 9 This is a schematic diagram of the guide wall provided in an embodiment of this application;

[0055] Figure 10 This is a cross-sectional view of the mounting bracket provided in the embodiment of this application being inserted into the mounting cavity;

[0056] Figure 11 This is a cross-sectional view of the mounting bracket provided in the embodiment of this application when it is installed in the mounting cavity;

[0057] Figure 12 yes Figure 8 Enlarged view of point A in the middle;

[0058] Figure 13 yes Figure 7 Enlarged view of point C in the middle;

[0059] Figure 14 yes Figure 9 Enlarged view of point B in the middle;

[0060] Figure 15 yes Figure 7 Enlarged view of point D in the middle.

[0061] Explanation of main figure symbols

[0062] 1-Indoor unit of cabinet air conditioner;

[0063] 11-Housing; 11a-Sidewall; 11b-Disassembly / assembly port; 11c-Mounting cavity; 11d-Second inclined surface; 11e-Second lap joint surface;

[0064] 100 - Fresh air volute; 110 - First extension section;

[0065] 200 - Sewage-prone volute; 210 - Second extension;

[0066] 300 - Mounting bracket; 310 - First end; 320 - Second end; 330 - First baffle; 330a - First inclined surface; 340 - Second baffle; 340a - First overlapping surface; 350 - Connecting part;

[0067] 400 - Guide wall; 410 - First guide section; 420 - Second guide section; 430 - Third guide section;

[0068] 500-humidification component. Detailed Implementation

[0069] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0070] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0071] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0072] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0073] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components whose specific types and structures may be the same or different, and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0074] As mentioned in the background section, in the existing technology, the total heat exchange core needs to be inserted directly into the ventilation cavity by the user's hand. When disassembling, the front panel of the air conditioner must be opened first to access the exchange core located in the air intake cavity of the volute. This process not only requires multiple steps such as disassembling the front panel and locating the exchange core, but may also cause damage to the core (such as paper heat exchange sheets) due to direct hand contact. As a result, the disassembly and assembly of the total heat exchange core is difficult and cannot meet the needs of convenient daily cleaning and replacement of the exchange core.

[0075] To address the aforementioned issues, this application provides a cabinet-type indoor air conditioner unit that utilizes a mounting bracket to facilitate the installation and removal of the heat exchange core. Operators can apply force stably by holding the bracket, reducing alignment difficulties and improving installation efficiency. This also reduces the difficulty of assembling and disassembling the heat exchange core, thus meeting the need for convenient daily cleaning and replacement of the exchange core.

[0076] The technical solution of the cabinet-type air conditioner indoor unit of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0077] like Figure 1 and Figure 2As shown, the indoor unit 1 of the cabinet air conditioner may include a housing 11. The housing 11 has two sidewalls 11a arranged opposite each other along the width direction of the housing 11. One of the sidewalls 11a of the housing 11 has a disassembly / removal opening 11b. An installation cavity 11c is formed inside the housing 11. Along the front-rear direction of the housing 11, the center of the opening of the installation cavity 11c is offset from the center of the disassembly / removal opening 11b. The center of the opening of the installation cavity 11c is closer to the rear side of the housing 11 than the center of the disassembly / removal opening 11b. That is, the center point of the opening of the installation cavity 11c is closer to the wall (i.e., the rear side of the housing 11) than the center point of the disassembly / removal opening 11b.

[0078] like Figures 3 to 5 As shown, the indoor unit 1 of the cabinet air conditioner may also include a fresh air volute 100, which is disposed inside the housing 11 and has a fresh air duct formed inside it.

[0079] like Figures 3 to 5 As shown, the indoor unit 1 of the cabinet air conditioner may also include a sludge volute 200, which is disposed inside the housing 11 and has a sludge duct inside.

[0080] like Figure 5 As shown, the installation cavity 11c is located at the intersection of the fresh air duct and the waste air duct.

[0081] like Figures 6 to 11 As shown, the indoor unit 1 of the cabinet air conditioner may also include a mounting bracket 300, which can be detachably installed in the mounting cavity 11c via the disassembly port 11b, such as... Figure 6 and Figure 7 As shown, the mounting bracket 300 has a first end 310 and a second end 320. When the mounting bracket is installed in the mounting cavity 11c, the first end 310 is the end away from the disassembly port 11b, and the second end 320 is the end close to the disassembly port 11b.

[0082] The indoor unit 1 of the cabinet air conditioner may also include a total heat exchange core, which is installed within the mounting bracket 300. The total heat exchange core is cuboid and has a fresh air heat exchange channel and a stale air heat exchange channel that are respectively connected to the fresh air duct and the stale air duct. The total heat exchange core is usually made of thin sheets of materials with heat and moisture conductivity, such as paper, resin, or metal. After the sheets are stacked or assembled in a specific way, two independent airflow channels that are not connected to each other are formed inside. These channels are used to circulate outdoor fresh air and indoor stale air, respectively, achieving the dual functions of airflow isolation and energy transfer. Outdoor fresh air and indoor stale air enter the two independent channels and flow in opposite directions. With the help of the heat and moisture conduction properties of the materials between the channels, the two airflows complete energy exchange without direct contact and mixing. The heat-exchanged fresh air enters the room, and the stale air is discharged outdoors. This achieves indoor and outdoor air exchange while reducing the energy loss of the air conditioning system.

[0083] like Figure 8 and Figure 9 As shown, the indoor unit 1 of the cabinet air conditioner may further include a guide wall 400, which is disposed within the housing 11. The guide wall 400 has a guide surface, one end of which is connected to the end of the disassembly port 11b facing the rear side of the housing 11, and the other end of which is connected to the end of the mounting cavity 11c away from the disassembly port 11b. The guide surface is configured to guide the mounting bracket 300 to be inserted into the housing 11 through the disassembly port 11b in a first direction, and to guide the second end of the mounting bracket 300 to gradually turn towards the end of the mounting cavity 11c away from the disassembly port 11b during insertion, so that the mounting bracket 300 is installed in the mounting cavity 11c. The first direction (… Figure 9 The direction indicated by the middle arrow X forms an acute angle with both the width direction and the front-back direction of the housing 11. That is, the first direction is neither parallel to the width direction nor parallel to the front-back direction, but extends obliquely between these two directions.

[0084] During installation, the operator first holds the pre-installed heat exchange core mounting bracket 300, aligns it with the disassembly / removal port 11b on the side wall 11a of the housing 11, and inserts it into the housing 11 along a first direction that forms a certain angle with the extension direction of the mounting cavity 11c. Initially, the mounting bracket 300 is initially limited by the guide surface of the guide wall 400 inside the housing 11, ensuring initial path stability. As the insertion depth increases, the edge of the mounting bracket 300 and the guide surface (one end connected to the disassembly / removal port 11b facing the rear of the housing 11, the other end connected to the mounting cavity 11c away from the disassembly / removal port 11b) move further apart. With the first end of the mounting bracket 300 in continuous contact, under the guidance of the guide surface, the second end 320 of the mounting bracket 300 gradually turns from the first direction to the end of the mounting cavity 11c away from the disassembly port 11b, completing the posture adjustment to avoid the spatial obstruction of various structural components (e.g., sheet metal connectors on the housing 11) inside the housing 11; when the mounting bracket 300 is fully adapted to the extension direction of the mounting cavity 11c, it can be further pushed to make it accurately embedded in the mounting cavity 11c located at the intersection of the fresh air duct and the sewage air duct, and finally complete the installation of the total heat exchange core. The disassembly process is carried out in reverse.

[0085] Thus, the offset setting of the center of the opening of the mounting cavity 11c relative to the center of the disassembly port 11b near the rear side of the housing 11, combined with the steering guidance of the guide wall 400, solves the problem of installation path conflict caused by the complex structure inside the housing 11, ensuring that the mounting bracket 300 can accurately reach the installation position within the limited space. The position design of the mounting cavity 11c and the precise guidance of the guide wall 400 ensure that the mounting bracket 300 is finally embedded along the extension direction of the mounting cavity 11c, so that the two channels of the total heat exchange core are completely aligned with the fresh air duct and the sewage air duct, avoiding air leakage in the duct due to installation deviation. This ensures efficient heat exchange between fresh air and sewage air, prevents untreated airflow mixing, and protects indoor air quality.

[0086] Furthermore, compared to directly installing and removing the heat exchange core from the housing 11, the installation and removal of the heat exchange core can be achieved by setting up the mounting bracket 300. The mounting bracket 300 can fix the heat exchange core in a closed or semi-closed support structure, forming physical protection and avoiding direct force on the core or friction with other components during the installation and removal process, effectively extending its service life. When directly installing and removing the core, it is necessary to accurately control the angle and position of the core to align with the fresh air and sewage air ducts. Moreover, the heat exchange core itself does not have a structure that is easy to hold, which can easily lead to slippage or misalignment. The mounting bracket 300 can be designed with a grip and positioning buckle, allowing the operator to apply force stably by holding the bracket. At the same time, the shape of the mounting bracket 300 can form a clearer matching mark with the installation and removal port 11b and the installation cavity 11c, reducing the difficulty of alignment and improving the installation efficiency. This can reduce the difficulty of installing and removing the heat exchange core and meet the convenience requirements of daily cleaning and replacement of the exchange core.

[0087] In some possible embodiments, such as Figure 9 As shown, the guide surface may include a first guide segment 410, which extends along a first direction. One end of the first guide segment 410 is located near the disassembly port 11b to guide the mounting bracket 300 to approach the mounting cavity 11c along the first direction when the mounting bracket 300 enters the housing 11 through the disassembly port 11b.

[0088] The guide surface may include a second guide segment 420, one end of which is connected to the first guide segment 410, and the other end is connected to the end of the mounting cavity 11c away from the disassembly port 11b. The second guide segment 420 has a first preset angle α with the first guide segment 410 and a second preset angle b with the extension direction of the mounting cavity 11c, so that the second end 320 of the mounting bracket 300 gradually turns to the end of the mounting cavity 11c away from the disassembly port 11b during the insertion process.

[0089] When the operator holds the mounting bracket 300 with the heat exchange core and aligns it with the disassembly port 11b, the first guide section 410 extends along the first direction and one end is close to the disassembly port 11b. In the initial stage of the mounting bracket 300 entering the housing 11, its edge will fit with the first guide section 410. Under the limitation of the first guide section 410, the mounting bracket 300 can be stably inserted in the first direction without manual adjustment of the angle, and gradually approach the position of the mounting cavity 11c, avoiding collision with other components in the housing 11 due to directional deviation during the initial insertion.

[0090] When the mounting bracket 300 is inserted to a certain depth along the first guide section 410, its end will contact the second guide section 420 connected to the first guide section 410. Since the second guide section 420 has a first preset angle a with the first guide section 410 and a second preset angle b with the extension direction of the mounting cavity 11c, and the other end is directly connected to the end of the mounting cavity 11c away from the disassembly port 11b, during the continuous insertion process, the mounting bracket 300 will gradually move from a straight direction along the inclined trajectory of the second guide section 420 to a movement posture consistent with the extension direction of the mounting cavity 11c, and finally accurately embed into the mounting cavity 11c to complete the installation of the full heat exchange core.

[0091] Thus, the straight guidance of the first guide section 410 provides a clear track for the initial insertion. Even if the operator's judgment of the first direction is slightly off, the mounting bracket 300 can return to the correct path under the constraint of the guide section, reducing the reliance on operating experience. The second guide section 420 achieves gradual turning through a preset angle, avoiding the installation jamming caused by the hard turning that may occur with a traditional single guide surface, making the attitude adjustment of the mounting bracket 300 smoother and reducing structural friction loss during the insertion process.

[0092] In some possible embodiments, such as Figure 9 As shown, the first preset included angle a is an obtuse angle, and the second preset included angle b is an acute angle.

[0093] Thus, the first preset included angle α is an obtuse angle (greater than 90° and less than 180°), which means that there are no sharp bends at the connection between the first guide segment 410 and the second guide segment 420. When the mounting bracket 300 transitions from the first guide segment 410 to the second guide segment 420, the change in the direction of movement is smoother, reducing mechanical resistance during insertion. The obtuse angle connection can also disperse the stress when the bracket contacts the guide surface, avoiding wear and deformation of the guide surface or bracket edge due to long-term disassembly and assembly, and extending the service life of the component.

[0094] The initial insertion direction (first direction) of the mounting bracket 300 has an angle with the extension direction of the mounting cavity 11c. It needs to be turned by the second guide segment 420 to avoid obstacles. In this embodiment, by setting the second preset angle b to an acute angle (less than 90°), the second guide segment 420 is closer to the trajectory of the extension direction of the mounting cavity 11c. This can shorten the turning path within the limited space of the housing 11, so that the second guide segment 420 can complete the attitude adjustment without excessive extension.

[0095] Preferably, such as Figure 9 As shown, there is an arc transition between the first guide segment 410 and the second guide segment 420.

[0096] In some possible embodiments, such as Figure 9As shown, the guide surface includes a third guide section 430, which is connected between the disassembly port 11b and the first guide section 410. When the mounting bracket 300 is installed into the housing 11 through the disassembly port 11b, the third guide section 430 can guide the first end 310 to slide towards the first guide section 410, and after the first end 310 contacts the second guide section 420, it can avoid the second end 320.

[0097] When the operator holds the mounting bracket 300 to insert it, because the trajectory of the third guide segment 430 is adapted to the initial insertion path of the first end 310, after the first end 310 of the mounting bracket 300 enters the disassembly port 11b, it will directly fit with the third guide segment 430 and slide along the preset trajectory to the first guide segment 410 under its constraint. This avoids the first end 310 from colliding with the inner wall of the housing 11 or other components due to the initial insertion offset, while ensuring that the bracket enters the housing 11 in the correct posture with the first end 310 in front and the second end 320 behind.

[0098] As the insertion depth increases, the first end 310, guided by the third guide section 430, smoothly enters the first guide section 410 and continues to penetrate deeper along the first guide section 410 (extending in the first direction). When the first end 310 reaches the junction of the first guide section 410 and the second guide section 420, it will contact the second guide section 420 and begin to gradually turn along the trajectory of the second guide section 420 (adapting to the extension direction of the mounting cavity 11c). When the second end 320 is pushed into the inner side of the disassembly port 11b along with the first end 310, the third guide section 430 will not obstruct the second end 320, but will provide enough space for it to advance synchronously with the movement direction of the first end 310, avoiding friction or jamming between the second end 320 and the third guide section 430.

[0099] In this way, the third guide section 430 guides the first end 310 to slide towards the first guide section 410, directly locking the front end of the bracket to the guiding target. This avoids the incorrect posture that may occur when the first end 310 is offset and the second end 320 is stuck first, which may happen when there is no third guide section 430 in the traditional way. It ensures the correct installation direction from the source, and is especially suitable for scenarios where the bracket 300 is long and the structures at both ends are different, reducing installation errors caused by the reversed end direction.

[0100] Furthermore, when the first end 310 is advanced along the first guide section 410 and the second end 320 is still near the disassembly port 11b, the second end 320 is prone to collide with the edge of the disassembly port 11b or the guide section structure, causing the bracket to be unable to continue to be inserted. However, the third guide section 430, through reserved space (such as the guide surface arc being expanded outward and locally concave), allows the second end 320 to advance synchronously with the first end 310, without the need for manual adjustment of the position of the second end 320, avoiding the situation where one end advances while the other end gets stuck, making the overall insertion process smoother and reducing the operator's repeated adjustment actions.

[0101] In some possible embodiments, such as Figure 9 As shown, the third guide segment 430 is a concave arc surface.

[0102] Thus, after the first end 310 enters the concave arc surface area, the arc-shaped inner wall will constrain it from both sides, which not only prevents the first end 310 from shifting left and right during the guidance process, but also reduces the frictional resistance at contact through the arc transition. Even if there is a slight deviation in the angle of the first end 310 when the operator inserts it, the arc structure of the concave arc surface can gradually correct the movement direction of the first end 310 through its own curvature, guiding it to slide smoothly to the first guide section 410, which greatly reduces the risk of guidance failure caused by initial angle error. It is especially suitable for scenarios where the first end 310 of the mounting bracket 300 has an angular structure, avoiding the jamming caused by the collision between the angular corner and the planar guide section.

[0103] Furthermore, the concave shape of the concave arc surface can naturally create a larger clearance space. When the second end 320 is advanced to the area of ​​the third guide section 430 along with the first end 310, the inner concave part of the concave arc surface can accommodate the edge of the second end 320, avoiding the second end 320 from being squeezed or rubbed against the outer wall of the guide section. Compared with the planar guide section, which requires an additional clearance, the concave arc surface can achieve the dual functions of "guiding the first end 310" and "avoiding the second end 320" through its own structural shape, without having to expand the overall size of the guide section, and is more suitable for the compact space layout inside the housing 11.

[0104] In some possible embodiments, such as Figures 6 to 11 As shown, the mounting bracket 300 may include a first baffle 330. When the mounting bracket 300 is installed in the mounting cavity 11c, the first baffle 330 is used to close the disassembly port 11b.

[0105] like Figures 6 to 11 As shown, the mounting bracket 300 may include a second baffle 340. When the mounting bracket 300 is installed in the mounting cavity 11c, the second baffle 340 is used to close the opening of the mounting cavity 11c toward the disassembly port 11b.

[0106] like Figures 6 to 11 As shown, the mounting bracket 300 may include a connecting portion 350, which is connected between the first baffle 330 and the second baffle 340, and at least a portion of the connecting portion 350 has a tendency to extend forward along the direction from the second baffle 340 to the first baffle 330.

[0107] Thus, when the mounting bracket 300 is installed in the mounting cavity 11c, the first baffle 330 directly seals the disassembly port 11b, preventing external dust and debris from entering the inside of the housing 11 through the disassembly port 11b. This avoids dust adhering to the surface of the fresh air volute 100, the stale air volute 200, or the total heat exchange core, affecting the airflow efficiency and heat exchange effect. The second baffle 340 seals the opening of the mounting cavity 11c facing the disassembly port 11b, forming an isolation between the mounting cavity 11c and other spaces of the housing 11. This prevents airflow in the mounting cavity 11c (such as a small amount of condensate or airflow disturbance that may be generated during the heat exchange between fresh air and stale air) from penetrating into other areas inside the housing 11, thus avoiding any impact on the electrical components inside the housing 11. The dual sealing works synergistically to maintain the cleanliness of the inside of the housing 11 and ensure the stability of the air conditioner's operation, reducing the risk of malfunctions caused by the intrusion of external impurities.

[0108] When it needs to be pulled out diagonally from the mounting cavity 11c, the connecting part 350 connects the first baffle 330 and the second baffle 340, and in the direction from the second baffle 340 to the first baffle 330, the connecting part 350 has at least a forward extension tendency, so that after applying a diagonal forward pulling force, the first baffle 330 will disengage from the closed state of the disassembly port 11b, and the second baffle 340 will simultaneously disengage from the closed state of the mounting cavity 11c opening towards the disassembly port 11b. At the same time, the connecting part 350, by virtue of its forward extension structural tendency, guides the entire mounting bracket 300 to smoothly disengage from the mounting cavity 11c in the diagonal forward direction, avoiding collision between the mounting bracket 300 and the wall around the indoor unit 1 of the cabinet air conditioner during the pulling out process.

[0109] In some possible embodiments, such as Figures 6 to 11 As shown, along the front-rear direction of the housing 11, the width of the connecting portion 350 is smaller than the width of the first baffle 330 and the second baffle 340.

[0110] Thus, from the perspective of path adaptation during the installation process, when the mounting bracket 300 is inserted into the housing 11, it needs to move along the trajectory of the third guide section 430, the first guide section 410 to the second guide section 420. The side wall 11a of the fresh air volute 100 and the waste air duct inside the housing 11 is usually adjacent to the mounting cavity 11c. If the width of the connecting part 350 is too large, during the rotation of the mounting bracket 300 (such as adjusting its posture along the second guide section 420) or during the advancement process, the edge of the connecting part 350 is prone to collide or rub against the outer wall of the fresh air volute 100 and the inner side wall 11a of the waste air duct. In this embodiment, by limiting the width of the connecting part 350 (making it smaller than the gap between the mounting cavity 11c and adjacent components), it can be ensured that the connecting part 350 will not hinder the advancement of the bracket due to collisions throughout the entire insertion path, thus avoiding installation jamming due to structural interference.

[0111] In some possible embodiments, such as Figure 12 and Figure 13As shown, the end of the first baffle 330 is provided with a first inclined surface 330a, and the peripheral wall of the disassembly port 11b is provided with a second inclined surface 11d that seals with the first inclined surface 330a.

[0112] like Figure 14 and Figure 15 As shown, the end of the second baffle 340 is provided with a first overlapping surface 340a, and the opening of the mounting cavity 11c facing the disassembly port 11b is provided with a second overlapping surface 11ee that seals with the first overlapping surface 340a.

[0113] Thus, when the mounting bracket 300 is fully embedded in the mounting cavity 11c, the first inclined surface 330a of the first baffle 330 and the second inclined surface 11d of the disassembly port 11b fit tightly together. Even if the housing 11 is slightly deformed by temperature changes or vibration, the inclined surface structure can still maintain a good fit, effectively blocking external dust and moisture from entering the housing 11 through the gap of the disassembly port 11b. The first overlapping surface 340a of the second baffle 340 and the second overlapping surface 11ee of the mounting cavity 11c can form a transverse sealing barrier at the opening of the mounting cavity 11c, preventing the heat exchange airflow in the mounting cavity 11c from flowing with the airflow in other areas of the housing 11, and preventing condensate or dust from entering the mounting cavity 11c and affecting the operation of the total heat exchange core. The dual sealing structure works together to improve the overall sealing performance of the housing 11.

[0114] Furthermore, during the insertion of the mounting bracket 300, the first inclined surface 330a of the first baffle 330 will automatically align with the second inclined surface 11d of the disassembly / removal port 11b. The lateral offset of the bracket is corrected by the guiding effect of the inclined surface, ensuring that the first baffle 330 accurately covers the disassembly / removal port 11b. When the first overlapping surface 340a of the second baffle 340 approaches the opening of the mounting cavity 11c, it will form an alignment reference with the second overlapping surface 11ee. The operator can judge whether the bracket has been pushed in place by sensing the degree of fit of the overlapping surfaces, thus avoiding sealing failure due to shallow installation or structural compression due to excessive depth.

[0115] Of course, in addition to the above-mentioned "sloping surface seal" and "planar overlap seal", grooves can also be reserved on the mating surface of the first baffle 330 and the disassembly port 11b, or on the mating surface of the second baffle 340 and the opening of the mounting cavity 11c. An elastic sealing ring made of a deformable material such as rubber or silicone is embedded in the groove. When the mounting bracket 300 is fully installed, the elastic sealing ring will be squeezed by the baffle and the opening wall, producing elastic deformation and filling the tiny gaps between the mating surfaces to form a tight sealing barrier.

[0116] In some possible embodiments, the guide surface is an arc-shaped surface, and the tangent direction of the guide surface at the entrance of the mounting cavity is parallel to the first direction.

[0117] The tangent direction of the arc-shaped surface at the entrance of the mounting cavity 11c is consistent with the disassembly and assembly direction (i.e., the first direction) set by the mounting bracket 300. This means that when the mounting bracket 300 enters and exits the mounting cavity 11c along the first direction, it can move smoothly along the tangent direction of the entrance guide surface without being obstructed by the angle deviation of the guide surface.

[0118] In some possible embodiments, adjacent fresh air heat exchange channels and adjacent waste air heat exchange channels within the total heat exchanger are separated by partition ribs.

[0119] The mounting bracket 300 is equipped with multiple reinforcing ribs, which are fixedly mounted on the frame. When the total heat exchanger is placed in the cubic space, the multiple reinforcing ribs correspond one-to-one with the partition ribs to avoid the fresh air heat exchange channel and the sludge heat exchange channel.

[0120] In this way, the one-to-one correspondence between the reinforcing ribs and the partition ribs allows the reinforcing ribs to be precisely fitted and fixed in position to the partition ribs. This not only improves the strength of the mounting bracket 300, but also avoids the flow areas of the fresh air heat exchange channel and the sludge heat exchange channel, thus not obstructing the airflow within the fresh air heat exchange channel and the sludge heat exchange channel.

[0121] In some possible embodiments, such as Figure 5 As shown, along the front-rear direction of the housing 11, the waste air volute 200 and the fresh air volute 100 are arranged side by side, with the waste air volute 200 located in front of the fresh air volute 100.

[0122] After the mounting bracket 300 is installed in the mounting cavity 11c, the fresh air heat exchange channel extends vertically, and the waste air heat exchange channel extends along the front and rear direction of the shell.

[0123] Thus, by arranging the sludge volute 200 and the fresh air volute 100 side by side along the front and rear direction of the shell 11, it is possible to avoid the two stacking and occupying too much space in the width or height direction of the shell 11. The lateral space (width direction) only needs to accommodate the width of a single volute. The fresh air heat exchange channel extends vertically and the sludge heat exchange channel extends front and rear, so that the two airflows flow in different directions. This can reduce the cross-interference of airflow between fresh air and sludge during the heat exchange process. At the same time, the layout of the sludge volute 200 in front of the fresh air volute 100 allows the sludge to enter the sludge heat exchange channel from the front area of ​​the shell 11 more quickly, while the fresh air flows stably through the fresh air heat exchange channel in the vertical direction. The two can fully contact and exchange heat, improving the overall heat exchange effect.

[0124] In some possible embodiments, such as Figure 5 As shown, the fresh air volute 100 is provided with a fresh air outlet. The fresh air volute 100 may include a first extension 110, which extends upward, and the fresh air outlet is located at the end of the first extension 110.

[0125] The sludge volute 200 is provided with a sludge outlet. The sludge volute 200 includes a second extension 210. The extension direction of the second extension 210 is parallel to the first extension 110. The sludge outlet is located at the end of the second extension 210.

[0126] In some possible embodiments, such as Figure 5 As shown, the indoor unit 1 of the cabinet air conditioner may also include a humidification component 500, which is disposed inside the housing 11 and is at the same height as the first extension 110 and the second extension 210.

[0127] In the front-rear direction of the housing 11, the width of the first extension 110 and the width of the second extension 210 are both smaller than the width of the mounting cavity 11c.

[0128] Thus, the vertical space (height direction) is designed with the first extension 110 and the second extension 210 extending in parallel and at the same height as the humidification component 500, concentrating the fresh air outlet, the waste air outlet, and the humidification component 500 in the same height area. For example, the first extension 110 and the second extension 210 extend upward in parallel, and the fresh air outlet and waste air outlet at the end can be directly connected to the air duct interface at the top of the housing 11. The humidification component 500 can humidify the fresh air at the same height, eliminating the need to reserve separate height space for each component, greatly reducing the waste of vertical space, and making the housing 11 thinner and lighter in the height direction, which is suitable for scenarios such as homes and offices where there is a need for compact air conditioning volume.

[0129] In some possible embodiments, such as Figure 4 As shown, the distance between the mounting cavity 11c and the bottom of the housing 11 is h, where 450mm≤h≤650mm.

[0130] Thus, the height range of 450mm to 650mm corresponds to the comfortable arm height for adults to operate while standing. Operators can easily insert or remove the mounting bracket 300 with the total heat exchange core by aligning it with the side wall 11a disassembly port 11b without bending over, squatting, kneeling, or standing on tiptoe to raise their arms, reducing the difficulty of disassembly and assembly.

[0131] Furthermore, the bottom of the indoor unit 1 of a cabinet air conditioner usually needs to house core components such as a fan, power module, and condensate drip tray. These components require a certain height space to ensure normal operation (for example, the drip tray needs to have enough volume to accommodate condensate, and the fan needs to have enough space to rotate to avoid interference with other components).

[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the cabinet air conditioner indoor unit of this application, and are not intended to limit it. Although the cabinet air conditioner indoor unit of this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cabinet-type air conditioner indoor unit, characterized in that, include: The housing has two sidewalls that are arranged opposite each other along the width direction of the housing. One of the sidewalls of the housing has a disassembly opening. The housing has an installation cavity. Along the front-rear direction of the housing, the center of the opening of the installation cavity is offset from the center of the disassembly opening. The center of the opening of the installation cavity is closer to the rear side of the housing than the center of the disassembly opening. Fresh air volute, wherein the fresh air volute is disposed inside the housing, and a fresh air duct is formed inside the fresh air volute; A sludge volute is disposed inside the housing, and a sludge duct is formed inside the sludge volute. The mounting cavity is located at the intersection of the fresh air duct and the waste air duct; The mounting bracket is detachably installed in the mounting cavity through the disassembly port. The mounting bracket has a first end and a second end. When the mounting bracket is installed in the mounting cavity, the first end is the end away from the disassembly port, and the second end is the end close to the disassembly port. A total heat exchange core is installed in the mounting bracket. The total heat exchange core is a cuboid and has a fresh air heat exchange channel and a waste air heat exchange channel that are respectively connected to the fresh air duct and the waste air duct. A guide wall, disposed within the housing, has a guide surface. One end of the guide surface is connected to the end of the disassembly / removal port facing the rear side of the housing, and the other end is connected to the end of the mounting cavity away from the disassembly / removal port. The guide surface is configured to guide the mounting bracket to be inserted into the housing through the disassembly / removal port in a first direction, and to guide a second end of the mounting bracket to gradually turn towards the end of the mounting cavity away from the disassembly / removal port during insertion, so that the mounting bracket is installed within the mounting cavity. The first direction forms an acute angle with both the width direction and the front-back direction of the shell.

2. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that, The guide surface includes: A first guide segment extends along the first direction, with one end of the first guide segment positioned near the disassembly port to guide the mounting bracket toward the mounting cavity along the first direction when the mounting bracket enters the housing through the disassembly port. The second guide segment has one end connected to the first guide segment and the other end connected to the end of the mounting cavity away from the disassembly port. The second guide segment has a first preset angle with the first guide segment and a second preset angle with the extension direction of the mounting cavity, so that the second end of the mounting bracket gradually turns to the end of the mounting cavity away from the disassembly port during the insertion process.

3. The cabinet-type air conditioner indoor unit according to claim 2, characterized in that, The first preset included angle is an obtuse angle, and the second preset included angle is an acute angle.

4. The cabinet-type air conditioner indoor unit according to claim 2, characterized in that, The guide surface includes a third guide section, which is connected between the disassembly port and the first guide section. When the mounting bracket is installed into the housing through the disassembly port, the third guide section can guide the first end to slide towards the first guide section, and after the first end contacts the second guide section, it can avoid the second end.

5. The cabinet-type air conditioner indoor unit according to claim 4, characterized in that, The third guide section is a concave arc surface.

6. The cabinet-type air conditioner indoor unit according to any one of claims 1-4, characterized in that, The mounting bracket includes: The first baffle is used to close the disassembly port when the mounting bracket is installed in the mounting cavity; The second baffle, when the mounting bracket is installed in the mounting cavity, is used to close the opening of the mounting cavity facing the disassembly port; A connecting portion, which is connected between the first baffle and the second baffle, and at least a portion of the connecting portion has a tendency to extend forward along the direction from the second baffle to the first baffle.

7. The cabinet-type air conditioner indoor unit according to any one of claims 1-4, characterized in that, The guide surface is an arc-shaped surface, and the tangent direction of the guide surface at the entrance of the mounting cavity is parallel to the first direction.

8. The cabinet-type air conditioner indoor unit according to any one of claims 1-4, characterized in that, Along the front-rear direction of the housing, the sludge volute and the fresh air volute are arranged side by side in sequence, and the sludge volute is located in front of the fresh air volute. After the mounting bracket is installed in the mounting cavity, the fresh air heat exchange channel extends vertically, and the waste air heat exchange channel extends along the front-rear direction of the housing.

9. The cabinet-type air conditioner indoor unit according to claim 8, characterized in that, The fresh air volute is provided with a fresh air outlet, and the fresh air volute includes: A first extension portion extends upward, and the fresh air outlet is located at the end of the first extension portion; The sludge volute is provided with a sludge outlet, and the sludge volute includes: The second extension is parallel to the first extension, and the sewage outlet is located at the end of the second extension.

10. The cabinet-type air conditioner indoor unit according to claim 9, characterized in that, In the vertical direction, the distance between the mounting cavity and the bottom of the housing is h, where 450mm≤h≤650mm.

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