Air conditioner indoor unit housing and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit housing and an air conditioner, and aims to solve the problem of water leakage of an existing air conditioner indoor unit housing. In order to achieve the purpose, the air conditioner indoor unit housing is provided with an air inlet window, the top of at least part of the lower edge forming the air inlet window is arranged to be a vertical edge, at least part of the inner side of the vertical edge is arranged to be an inclined face, and the inclined face inclines from the inner side to the outer side from bottom to top. And a gap between the inner side of the vertical edge and the fixed plate is of a structure with a wide upper part and a narrow lower part. Due to the fact that the gap between the top of the vertical edge and the fixing plate is enlarged after the inclined face on the inner side of the vertical edge is abdicated, condensed water condensed at the head of the grounding screw can make contact with the inclined face after dropping and flow downwards along the inclined face, and the possibility that the condensed water flows to the outer side of the vertical edge to cause water leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning, specifically providing an air conditioner indoor unit cover and an air conditioner. Background Technology

[0002] The indoor unit of a wall-mounted air conditioner includes a casing, an evaporator, and a fan, with both the evaporator and fan located inside the casing. The evaporator consists of multiple fins arranged around the fan to form a semi-enclosed structure. Below the fan is an opening in the structure enclosed by the evaporator fins, which connects to the air outlet of the indoor unit. Sheet metal tube plates are located at both ends of the evaporator fins to secure them. The front of the casing has an air inlet window, with one evaporator fin located near the air inlet window.

[0003] The sheet metal tube sheet includes a main plate and a mounting plate. The main plate is located at the end of the evaporator and is used to seal the end of the semi-enclosed structure formed by the evaporator. The mounting plate is located between the evaporator and the casing near the air inlet window. The mounting plate is equipped with grounding screws, which are inserted into the evaporator and can also be used to fix the evaporator and the mounting plate.

[0004] At least part of the lower edge of the casing forming the air inlet window is designed as a vertical edge. For compact structural design, the distance between the evaporator and the casing is small. Furthermore, due to the protruding end of the grounding bolt, the orthographic projection of the bolt end on the horizontal plane is very close to the orthographic projection of the vertical edge on the horizontal plane. The grounding bolt, which contacts the evaporator, is at a low temperature during cooling, easily producing condensation. This condensation easily contacts the casing as it drips, and after being divided by the top of the casing, part flows along the outer wall of the casing to the outside, and the other part flows along the inner side of the casing to the drip tray located in the frame inside the indoor unit. The condensation flowing along the outer wall of the casing drips onto the floor, affecting the user experience.

[0005] Therefore, there is an urgent need for an air conditioner indoor unit cover and an air conditioner to solve the problem of water leakage in existing air conditioner indoor unit covers. Utility Model Content

[0006] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem of water leakage in the existing air conditioner indoor unit casing.

[0007] In a first aspect, the present invention provides an air conditioner indoor unit housing, the housing having an air inlet window, the top of at least a portion of the lower edge forming the air inlet window being configured as a vertical edge, at least a portion of the inner side of the vertical edge being configured as an inclined surface, the inclined surface sloping from the inside to the outside from bottom to top.

[0008] In the specific embodiment of the above-mentioned air conditioner indoor unit cover, a plurality of drainage ribs are provided on the inner side of the lower edge, the drainage ribs are arranged from top to bottom and the upper end of the drainage ribs is lower than the upper end of the vertical edge.

[0009] In the specific embodiments of the above-mentioned air conditioner indoor unit cover, the drainage ribs are arranged vertically; or, the drainage ribs are arranged inclined from top to bottom, and the gap between two adjacent drainage ribs decreases sequentially from top to bottom.

[0010] In the specific embodiment of the above-mentioned air conditioner indoor unit cover, the minimum spacing between two adjacent water-draining ribs is 2mm to 4mm.

[0011] In the specific embodiment of the above-mentioned air conditioner indoor unit cover, at least part of the lower edge has a stepped cross-section and the top is close to the inside.

[0012] In the specific embodiment of the above-mentioned air conditioner indoor unit cover, the bottom of the stepped surface connected to the vertical edge is inclined from the outside to the inside from top to bottom.

[0013] In a second aspect, this disclosure provides an air conditioner, comprising: the aforementioned air conditioner indoor unit housing; a frame water receiving tray, wherein the projection of the vertical side onto the horizontal plane falls within the projection range of the frame water receiving tray onto the horizontal plane.

[0014] In a specific embodiment of the air conditioner described above, the air conditioner further includes: an evaporator, at least one of which is located near the air inlet window; a sheet metal tube plate, including a main plate and a fixing plate, wherein the main plate is located at the end of the evaporator, and the fixing plate is located between the evaporator and the housing near the air inlet window; and a grounding screw, which is connected to the fixing plate and inserted into the evaporator, wherein the head of the grounding screw is located obliquely upward on the lower edge facing inward.

[0015] In the specific embodiment of the air conditioner described above, a plurality of drainage ribs are provided on the inner side of the lower edge. The drainage ribs are arranged from top to bottom and the upper end of the drainage ribs is lower than the upper end of the vertical edge. At least some of the drainage ribs are positioned corresponding to the grounding screw.

[0016] In a specific embodiment of the air conditioner described above, the air conditioner further includes a fan, and the evaporator is arranged around the fan to form a semi-enclosed structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model provides an air conditioner indoor unit cover, which has an air inlet window. At least a portion of the lower edge of the air inlet window is configured as a vertical edge, and at least a portion of the inner side of the vertical edge is configured as a slope. The slope slopes from bottom to top and from the inside to the outside, so that the gap between the inner side of the vertical edge and the fixing plate has a structure that is wider at the top and narrower at the bottom. Because the slope on the inner side of the vertical edge increases the gap between the top of the vertical edge and the fixing plate, the condensate that forms on the head of the grounding screw will come into contact with the slope and flow downward along the slope, reducing the possibility of condensate flowing to the outside of the vertical edge and causing leakage.

[0019] Furthermore, multiple drainage ribs are provided on the inner side of the lower edge. These ribs are arranged from top to bottom, with their upper ends lower than the upper end of the vertical edge. At least some of the drainage ribs are positioned corresponding to the grounding screw. Condensate dripping from the head of the grounding screw falls onto the inclined surface and is blocked by the drainage ribs, reducing the degree of water splashing and thus reducing the possibility of water splashing to the outside of the vertical edge and causing leakage. Attached Figure Description

[0020] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the air conditioner provided by this utility model;

[0022] Figure 2 This is a front view of the air conditioner provided by this utility model;

[0023] Figure 3 yes Figure 2 Sectional view along the middle AA direction;

[0024] Figure 4 yes Figure 3 A partial diagram of point A in the diagram;

[0025] Figure 5 This is a partial structural diagram of the lower edge of the cover provided by this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Enclosure; 11. Air inlet window; 12. Air outlet; 13. Bottom edge; 131. Vertical edge; 132. Sloping surface; 133. Drainage rib; 2. Evaporator; 3. Fan; 42. Fixing plate; 5. Grounding screw; 6. Frame water collection tray. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The indoor unit of a wall-mounted air conditioner includes a casing, an evaporator, and a fan, with both the evaporator and fan located inside the casing. The evaporator consists of multiple fins arranged around the fan to form a semi-enclosed structure. Below the fan is an opening in the structure enclosed by the evaporator fins, which connects to the air outlet of the indoor unit. Sheet metal tube plates are located at both ends of the evaporator fins to secure them. The front of the casing has an air inlet window, with one evaporator fin located near the air inlet window.

[0032] The sheet metal tube sheet includes a main plate and a mounting plate. The main plate is located at the end of the evaporator and is used to seal the end of the semi-enclosed structure formed by the evaporator. The mounting plate is located between the evaporator and the casing near the air inlet window. The mounting plate has grounding screws that are inserted into the evaporator and can also be used to secure the evaporator and the mounting plate. In some examples, the grounding screws are exposed through the air inlet window.

[0033] At least part of the lower edge of the casing forming the air inlet window is designed as a vertical edge. For compact structural design, the distance between the evaporator and the casing is small. Furthermore, due to the protruding end of the grounding bolt, the orthographic projection of the bolt end on the horizontal plane is very close to the orthographic projection of the vertical edge on the horizontal plane. The grounding bolt, which contacts the evaporator, is at a low temperature during cooling, easily producing condensation. This condensation easily contacts the casing as it drips, and after being divided by the top of the casing, part flows along the outer wall of the casing to the outside, and the other part flows along the inner side of the casing to the drip tray located in the frame inside the indoor unit. The condensation flowing along the outer wall of the casing drips onto the floor, affecting the user experience.

[0034] To prevent condensation from dripping from the grounding bolt onto the outside of the casing, the distance between the casing and the evaporator can be increased. However, this would increase the size of the indoor unit, making it difficult to reduce its dimensions. Alternatively, the vertical edge could be moved outward to avoid the grounding bolt, but this design would cause a convex structure in the casing, increasing the thickness of the indoor unit and hindering any reduction in its size.

[0035] Based on this, the air conditioner indoor unit cover and air conditioner provided in this disclosure solve the problem of water leakage of the air conditioner indoor unit cover without increasing the size of the wall-mounted air conditioner indoor unit.

[0036] The air conditioner disclosed herein includes a compressor, a condenser, an expansion valve, and an evaporator. The compressor, condenser, expansion valve, and evaporator are connected sequentially through pipes to form a circulation loop. The loop is filled with refrigerant. The compressor can compress the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant. The condenser liquefies the high-temperature, high-pressure gaseous refrigerant into a medium-temperature, medium-pressure liquid refrigerant and releases heat to the outside. The liquid refrigerant enters the expansion valve for throttling and then passes through the evaporator to absorb heat, causing the liquid refrigerant to evaporate into a gaseous state. It then enters the compressor for compression and pressurization, and this cycle repeats to achieve cooling or heating.

[0037] Air conditioners consist of indoor and outdoor units. For refrigeration air conditioners, the compressor, condenser, and expansion valve are located in the outdoor unit, while the evaporator is located in the indoor unit. In addition, such as... Figures 1 to 3 As shown, the indoor unit also includes a casing 1 and a fan 3, with both the evaporator 2 and the fan 3 located inside the casing 1. The casing 1 has an air inlet window 11 and an air outlet 12, with the air inlet window 11 located above the air outlet 12. The evaporator 2 comprises multiple evaporator plates arranged around the fan 3 to form a semi-enclosed structure. Below the fan 3 is an opening in the structure surrounded by the multiple evaporator plates 2, which communicates with the air outlet 12. One of the evaporator plates 2 is located near the air inlet window 11. Under the action of the fan 3, air enters through the air inlet window 11, flows through the evaporator 2 for heat exchange and cooling, and then flows out through the air outlet 12, achieving cooling.

[0038] Sheet metal tube plates are provided at both ends of the multi-plate evaporator 2, and the sheet metal tube plates are used to fix the evaporator 2. The sheet metal tube plate includes a main plate and a fixing plate 42. The main plate is located at the end of the evaporator 2 and is used to close the end of the semi-enclosed structure formed by the evaporator 2. The fixing plate 42 is located between the evaporator 2 and the casing 1 near the air inlet window 11. Grounding screws 5 are provided on the fixing plate 42. The grounding screws 5 are inserted into the evaporator 2 and can also be used to fix the evaporator 2 and the fixing plate 42. In some examples, the grounding screws 5 are exposed through the air inlet window 11.

[0039] like Figure 3 and Figure 4As shown, the lower edge 13 of the housing 1 forming the air inlet window 11 has a stepped cross-section, and the top of the lower edge 13 is close to the inner side, thereby forming a stepped surface on the outer side of the lower edge 13 to facilitate the installation of structures such as filters at the air inlet window 11. At least part of the top of the lower edge 13 is set as a vertical edge 131, and the grounding bolt is located diagonally above the vertical edge 131 facing inward.

[0040] The air conditioner also includes a frame water collection tray 6, which is located below the fan 3 and extends to the bottom of the vertical edge 131 near the air inlet window 11. Specifically, the projection of the vertical edge 131 on the horizontal plane falls within the projection range of the frame water collection tray 6 on the horizontal plane, so as to collect the condensate dripping along the inner side of the vertical edge 131.

[0041] At least a portion of the inner side of the vertical edge 131 is configured as a slope 132, which slopes from bottom to top from the inside to the outside, creating a gap between the inner side of the vertical edge 131 and the fixing plate 42 that is wider at the top and narrower at the bottom. Because the slope 132 on the inner side of the vertical edge 131 increases the gap between the top of the vertical edge 131 and the fixing plate 42, condensation from the head of the grounding screw 5 will drip down and contact the slope 132, flowing downwards along it, reducing the possibility of condensation flowing to the outside of the vertical edge 131 and causing leakage.

[0042] In addition, such as Figure 5 As shown, multiple drainage ribs 133 are provided on the inner side of the lower edge 13. The drainage ribs 133 are arranged from top to bottom, and the upper end of the drainage ribs 133 is lower than the upper end of the vertical edge 131. The position of the drainage ribs 133 corresponds to the grounding screw 5. The condensate dripping from the head of the grounding screw 5 falls between two adjacent drainage ribs 133. After the condensate dripping from the head of the grounding screw 5 falls onto the inclined surface 132, it is blocked by the drainage ribs 133, reducing the degree of water splashing, thereby reducing the possibility of water splashing to the outside of the vertical edge 131 and causing leakage. The upper end of the drainage ribs 133 is lower than the upper end of the vertical edge 131 to avoid water droplets colliding with the upper end of the drainage ribs 133 and causing some liquid to splash to the outside of the vertical edge 131 and cause leakage.

[0043] In a specific embodiment of this disclosure, the drainage ribs 133 are vertically arranged, extending from the inclined surface 132 to below it. The minimum spacing between two adjacent drainage ribs 133 is 2mm to 4mm, specifically 3mm. Alternatively, in other possible embodiments, the drainage ribs 133 may be inclined downwards, with the gap between adjacent drainage ribs 133 decreasing progressively from top to bottom, to further guide the condensate dripping onto the inclined surface 132 and reduce water splashing. In this case, the minimum spacing between two adjacent drainage ribs 133 is 2mm to 4mm.

[0044] In some examples, the bottom of the step surface connected to the vertical edge 131 in the lower edge 13 is set as an inclined surface, specifically inclined from the outside to the inside from top to bottom. Since the bottom of the step surface connected to the vertical edge 131 is set as an inclined surface, condensate will not flow along the bottom of the step surface, so that the condensate flowing down the inside of the vertical edge 131 will accumulate at the bottom of the vertical edge 131 and can be completely collected by the frame water receiving tray 6.

[0045] It should be noted that the vertical edge 131, the inclined surface 132, and the drainage rib 133 can not only be set at the position corresponding to the grounding screw 5, but also at other positions on the lower edge 13 of the cover 1, so as to reduce the possibility of condensate dripping onto the outside of the vertical edge 131 and causing water leakage.

[0046] In summary, the working principle of the air conditioner disclosed herein is as follows:

[0047] Because the gap between the inclined surface 132 and the fixed plate 42 has a structure that is wider at the top and narrower at the bottom, the condensate droplets formed on the head of the grounding screw 5 can fall completely onto the inclined surface 132 and flow downwards along the inclined surface 132, reducing the possibility of condensate droplets falling to the outside of the vertical edge 131 and causing leakage. In addition, the water droplets falling onto the inclined surface 132 are blocked by the water-repellent ribs 133, reducing the degree of water splashing, further reducing the possibility of water droplets splashing to the outside of the vertical edge 131 and causing leakage. The condensate flows along the inside of the vertical edge 131 to the bottom of the vertical edge 131, and finally drips onto the frame water receiving tray 6 for collection and discharge.

[0048] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An air conditioner indoor unit housing characterized by comprising: The cover (1) has an air inlet window (11), a top of at least a part of a lower edge (13) forming the air inlet window (11) is provided as a vertical edge (131), and at least a part of an inner side of the vertical edge (131) is provided as an inclined surface (132) which is inclined from the inner side to the outer side from bottom to top.

2. The indoor unit housing of the air conditioner according to claim 1, wherein An inner side of the lower edge (13) is provided with a plurality of hydrophobic ribs (133), the hydrophobic ribs (133) are provided from top to bottom, and upper ends of the hydrophobic ribs (133) are lower than an upper end of the vertical edge (131). 3.The indoor unit housing of the air conditioner of claim 2, wherein, The hydrophobic ribs (133) are vertically provided. Alternatively, the hydrophobic ribs (133) are provided from top to bottom in an inclined manner, and gaps between adjacent two hydrophobic ribs (133) are sequentially reduced from top to bottom. 4.The indoor unit housing of the air conditioner of claim 3, wherein, A minimum spacing between adjacent two hydrophobic ribs (133) is 2mm to 4mm. 5.The indoor unit housing of the air conditioner of claim 1, wherein, A cross section of at least a part of the lower edge (13) is in a stepped shape and a top is close to an inner side. 6.The indoor unit housing of the air conditioner of claim 5, wherein, A bottom of a stepped surface connected with the vertical edge (131) is provided from the outer side to the inner side from top to bottom in an inclined manner.

7. An air conditioner characterized by comprising: Comprise: The indoor unit cover of the air conditioner according to any one of claims 1 to 6; The vertical edge (131) falls within a projection range of the skeleton water pan (6) on a horizontal plane.

8. The air conditioner according to claim 7, wherein The air conditioner further comprises: An evaporator (2) which is at least a piece close to the air inlet window (11); A sheet metal tube plate comprising a main plate and a fixing plate (42), the main plate is located at an end of the evaporator (2), and the fixing plate (42) is located between the evaporator (2) close to the air inlet window (11) and the cover (1); A grounding screw (5) connected on the fixing plate (42) and inserted into the evaporator (2), a head of the grounding screw (5) is located obliquely above an inner side of the lower edge (13).

9. The air conditioner according to claim 8, wherein An inner side of the lower edge (13) is provided with a plurality of hydrophobic ribs (133), the hydrophobic ribs (133) are provided from top to bottom, and upper ends of the hydrophobic ribs (133) are lower than an upper end of the vertical edge (131), and at least a part of the hydrophobic ribs (133) is provided at a position corresponding to the grounding screw (5).

10. The air conditioner according to claim 8, wherein The air conditioner further comprises a fan (3), and the evaporator (2) is arranged around the fan (3) to form a semi-enclosed structure.

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