Water absorption prevention structure applied to built-in air conditioner
By designing isolation plates and baffles on the water collection tray of the built-in air conditioner, the problems of condensate drainage and fan suction are solved, achieving a leak-proof effect and improving the air conditioner's waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-17
AI Technical Summary
The water collection tray of a built-in air conditioner produces condensate during cooling and dehumidification. The condensate is difficult to drain effectively, resulting in excessive water accumulation in the water collection tray. This can easily lead to water leakage when the fan is running, and the condensate may also be sucked into the fan, causing the air conditioner to leak.
A water-absorbing structure was designed, including a water collection tray, an isolation plate, and a baffle. The isolation plate covers the upper side of the extended area of the water collection tray to prevent positive pressure air from entering. The baffle is fixed to the edge of the opening to guide splashed water back into the cavity and prevent water from being sucked in by the fan.
It effectively prevents the water collection pan from being blocked and water from splashing out and being sucked into the fan, improves the air conditioner's water leakage prevention performance, and reduces the risk of air conditioner leakage.
Smart Images

Figure CN223999310U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of air conditioning technology, and in particular relates to a water-proof structure for use in built-in air conditioners. Background Technology
[0002] Currently, in vehicles with built-in split air conditioning systems, the evaporator core produces a large amount of condensate during cooling and dehumidification. Under the influence of gravity, the condensate flows along the fins into the water collection tray. When the water in the collection tray accumulates to a certain level, the water will flow out through the drain outlets at both ends of the collection tray and then through the drain hose to the outside of the vehicle.
[0003] The gaps between the two ends of the water collection pan and the core are usually not completely sealed. When the fan is running, positive pressure air in the duct will enter from the gaps between the two ends of the water collection pan and the core, and blow towards the inside of the water collection pan, which is opposite to the drainage direction in the water collection pan. This makes it more difficult for the condensate to drain out, resulting in excessive water accumulation in the water collection pan. When there is too much water, water droplets are likely to splash near the opening in the water collection pan. Water droplets in this area can easily be sucked into the high-speed fan, causing the air conditioner to leak. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a water-proof structure for use in built-in air conditioners, thereby solving one of the above-mentioned problems of the water collection tray in the prior art.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A water-resistant structure for use in built-in air conditioners, comprising:
[0007] A water collection tray is provided below the core of the air conditioner to collect condensate generated by the core. The water collection tray has a cavity for containing the condensate, and the upper side of the cavity has an opening. The cavity includes a main area and an extension area. The projection of the main area in the vertical direction coincides with the projection of the core in the vertical direction. The extension area is located at both ends of the main area in the X direction. The extension area has a drain outlet for water to flow out.
[0008] A partition plate, the partition plate at least covering the upper side of the extended region;
[0009] A baffle is fixed to one or both edges of the opening along the Y direction, and the baffle extends at least partially into the inside of the water collection tray; the Y direction and the X direction are both horizontal, and the Y direction is perpendicular to the X direction.
[0010] Preferably, in the water-proof structure of this utility model applied to a built-in air conditioner, the baffle located on the side of the opening near the air inlet of the air conditioner includes:
[0011] A first shielding surface is fixed to the edge of the opening and extends into the water collection tray in a direction inclined relative to the vertical direction.
[0012] The second shielding surface is fixed to the upper edge of the first shielding surface, and the second shielding surface extends outward from the water collection tray in a direction inclined relative to the vertical direction.
[0013] Preferably, in the water-absorbing structure of the present invention applied to a built-in air conditioner, the baffle is a plate with a V-shaped cross-section, and the corner of the plate is used as the boundary between the first shielding surface and the second shielding surface.
[0014] Preferably, in the water-proof structure of the present invention applied to a built-in air conditioner, the connection between the first shielding surface and the water collection tray is a first arc-shaped transition surface.
[0015] Preferably, in the water-proof structure of the present invention applied to a built-in air conditioner, the edge connecting the second shielding surface and the upper edge of the first shielding surface is a second arc-shaped transition surface.
[0016] Preferably, in the water-absorbing structure of the present invention applied to a built-in air conditioner, the angle between the first shielding surface and the vertical direction is 30° to 60°, and the angle between the second shielding surface and the vertical direction is 30° to 85°.
[0017] Preferably, in the water-absorbing structure of the present invention applied to a built-in air conditioner, the edge of the isolation plate abuts against the core wall.
[0018] Preferably, in the water-proof structure of the present invention applied to a built-in air conditioner, at least part of the inner wall of the water collection tray extends from both sides to the middle in a top-to-bottom direction.
[0019] Preferably, in the water-absorbing structure of the present invention applied to a built-in air conditioner, the two ends of the isolation plate along the Y direction are attached and fixed to the inner wall of the water collection tray.
[0020] Preferably, in the water-proof structure of the present invention applied to a built-in air conditioner, the drain outlet is located at the lowest point of the extended area.
[0021] The beneficial effects of this invention are as follows: By covering the upper side of the extension area with an isolation plate, positive pressure air is prevented from entering the cavity of the water collection tray from the upper side of the extension area, thus avoiding the formation of airflow in the cavity opposite to the drainage direction of the water collection tray, preventing obstruction of drainage, and preventing excessive water accumulation in the water collection tray from overflowing and being sucked into the fan. A baffle fixed to one or both edges of the opening along the Y direction guides splashed water from the edge of the water collection tray opening back into the cavity, preventing water from being sucked into the fan after splashing out. Therefore, this invention can significantly improve the problem of air conditioner water leakage under certain conditions. Attached Figure Description
[0022] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a cross-sectional structural schematic diagram of the anti-water absorption structure applied to a built-in air conditioner according to an embodiment of this application;
[0024] Figure 2 This is a schematic diagram showing the connection position between the anti-water absorption structure and the fan in an embodiment of this application for a built-in air conditioner;
[0025] Figure 3 This is a top view of the anti-water absorption structure applied to a built-in air conditioner according to an embodiment of this application;
[0026] Figure 4 This is a schematic diagram of the longitudinal section of the anti-water absorption structure applied to a built-in air conditioner according to an embodiment of this application;
[0027] Figure 5 This is a schematic diagram of the air intake at both ends of the air conditioning manifold in the prior art;
[0028] Figure 6 This is a schematic diagram illustrating the guiding effect of the baffle on the water flow according to an embodiment of this application;
[0029] Figure 7 This is a schematic diagram of the shielding surface structure of the baffle in an embodiment of this application.
[0030] The attached figures are labeled as follows:
[0031] 1. Water collection tray; 10. Cavity; 11. Main area; 12. Extension area; 13. Opening; 121. Drain outlet;
[0032] 2. Core;
[0033] 3. Isolation plate;
[0034] 4. Baffle; 41. First shielding surface; 42. Second shielding surface; 411. First arc-shaped transition surface; 421. Second arc-shaped transition surface;
[0035] 5. Fan. Detailed Implementation
[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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 limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., 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.
[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this application based on the specific circumstances.
[0039] In the description of this application, the X direction, Y direction, or Z direction, unless otherwise specified, can mean along a straight line without a specific direction, or it can mean along a straight line with a positive and negative direction.
[0040] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.
[0041] This embodiment provides a water-proof structure for use in built-in air conditioners, such as... Figures 1-3 As shown, it includes: a water collection tray 1, a partition plate 3, and a baffle plate 4.
[0042] Among them, such as Figure 1 As shown, the water collection tray 1 is installed below the air conditioner core 2 to collect the condensate generated by the core 2. The core 2 is a key heat exchange device in the air conditioner's cooling / heating cycle. Figure 1 , Figure 2 As shown, the water collection tray 1 has a cavity 10 for condensate water, and the upper side of the cavity 10 has an opening 13, as shown. Figure 3 , Figure 4 As shown, the cavity 10 includes a main body region 11 and an extension region 12. The projection of the main body region 11 along the Z direction coincides with the projection of the core 2 along the vertical direction. In this embodiment, the Z direction represents the direction of gravity or the vertical direction. The extension region 12 is located at both ends of the main body region 11 along the X direction. The extension region 12 has a drain outlet 121 for water to flow out. That is, when the condensate collected in the cavity 10 of the water collection tray 1 in this embodiment is discharged, it is discharged from the center of the cavity 10 to the drain outlets 121 at both ends.
[0043] like Figure 4 As shown, the isolation plate 3 at least covers the upper side of the extension area 12. (As indicated...) Figure 2 , Figure 3 As shown, the baffle 4 is fixed to one edge of the opening 13 along the Y direction, and the baffle 4 extends at least partially into the water collection tray 1; both the Y and X directions are horizontal, and the Y direction is perpendicular to the X direction. It can be understood that the baffle 4 can also be fixed to both sides of the opening 13 along the Y direction to increase the effective range.
[0044] like Figure 5 As shown, in the existing scheme, positive pressure air enters the cavity 10 of the water collection tray 1 from the upper side of the extension area 12, and an airflow opposite to the drainage direction of the water collection tray 1 is formed in the cavity 10, which causes the drainage of the water collection tray 1 to be blocked.
[0045] The water-absorbing structure applied to the built-in air conditioner in this embodiment, such as... Figure 4 As shown, by covering the upper side of the extension area 12 with the isolation plate 3, the air inlet to the cavity 10 on the upper side of the extension area 12 is sealed off, preventing the drainage of the water collection tray 1 from being obstructed and reducing the likelihood of water overflowing from the water collection tray 1 and being sucked in by the fan 5. Figure 6 As shown, the baffle 4 is fixed to one edge of the opening 13 along the Y direction. The baffle 4 guides the water flow that tends to rush out of the water collection tray 1, and can guide the splashing water at the edge of the opening 13 of the water collection tray 1 back into the cavity 10, preventing the water from being sucked in by the fan 5 after splashing out. In this way, the present invention can significantly improve the problem of air conditioner water leakage under certain conditions.
[0046] In an alternative embodiment, such as Figure 6 As shown, the baffle 4 located on the side of the opening 13 near the air inlet of the fan 5 of the air conditioner includes: a first shielding surface 41 and a second shielding surface 42.
[0047] The first shielding surface 41 is fixed to the edge of the opening 13, and extends inward toward the water collection tray 1 in a direction inclined relative to the vertical direction (Z direction); the second shielding surface 42 is fixed to the upper edge of the first shielding surface 41, and extends outward toward the water collection tray 1 in a direction inclined relative to the vertical direction (Z direction). In this embodiment, as... Figure 6 As shown, firstly, water flowing along the Y direction in the cavity 10 and about to overflow the edge of the water collection tray 1 flows back to the center of the cavity 10 under the action of the first shielding surface 41. Secondly, condensate water falling from the core 2 under the suction of the fan 5 can fall onto the second shielding surface 42. Since the second shielding surface 42 has a certain inclination, the water can flow back into the cavity 10 along its surface. Therefore, the baffle 4 provided in this embodiment can improve the phenomenon of water leakage from the air conditioning fan in at least two aspects.
[0048] In an alternative embodiment, such as Figure 7 As shown, the baffle 4 is a V-shaped plate, with the corner of the plate dividing it into the first shielding surface 41 and the second shielding surface 42. In this embodiment, the baffle 4 is made of a V-shaped plate, which has a simple structure, low cost, and helps to reduce equipment costs.
[0049] In an alternative embodiment, such as Figure 7 As shown, the connection between the first shielding surface 41 and the water collection tray 1 is a first arc-shaped transition surface 411. In this embodiment, as... Figure 6 As shown, the first arc-shaped transition surface 411 can promote a smooth change in the direction of water flow and reduce water splashing.
[0050] In an alternative embodiment, such as Figure 7 As shown, the edge connecting the second shielding surface 42 and the upper end of the first shielding surface 41 is a second arc-shaped transition surface 421. In this embodiment, the second arc-shaped transition surface 421 can guide the water flow down the upper surface of the second shielding surface 42, making it easier for the water droplets to flow downwards rather than in the X direction, thus reducing the probability that the collected water droplets are not properly recovered into the cavity 10.
[0051] In an optional embodiment, the angle between the first shielding surface 41 and the vertical direction is 30° to 60°, and the angle between the second shielding surface 42 and the vertical direction is 30° to 85°. In this embodiment, when the first shielding surface 41 or the second shielding surface 42 is within the above-mentioned angle range, the guiding effect on the water flow is better.
[0052] In an alternative embodiment, such as Figure 3 As shown, the edge of the isolation plate 3 abuts against the wall of the core 2, which can improve the shielding effect of the isolation plate 3 on the opening 13 and help reduce the probability of air entering from both ends of the water collection tray 1.
[0053] In an alternative embodiment, such as Figure 7 As shown, the inner wall of the water collection tray 1 extends from both sides toward the middle in a downward direction (Z direction downward), which can gather the condensate collected in the cavity 10 toward the middle, reduce the amount of water stored at the edge of the water collection tray 1, reduce the probability of water splashing out of the cavity 10, and reduce the probability of water being sucked into the fan 5.
[0054] In an alternative embodiment, such as Figure 3 As shown, the two ends of the isolation plate 3 along the Y direction are attached to and fixed to the inner wall of the water collection tray 1, which can improve the stability of the connection between the isolation plate 3 and the water collection tray 1.
[0055] In an alternative embodiment, such as Figure 7 As shown, the drain outlet 121 is located at the lowest point of the extended area 12, which can improve the drainage effect of the water collection tray 1 and reduce the amount of water stored in the water collection tray 1, so as to reduce the probability that the water in it will be sucked in by the fan 5.
[0056] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A water absorption preventing structure applied to a built-in air conditioner, characterized by, The application relates to an air conditioner water collecting device. The water collecting device comprises: a water collecting tray (1) arranged below a core body (2) of the air conditioner to collect condensed water generated by the core body (2); the water collecting tray (1) has a cavity (10) for containing the condensed water, the upper side of the cavity (10) has an opening (13), the cavity (10) comprises a main body area (11) and an extension area (12), the projection of the main body area (11) along the vertical direction coincides with the projection of the core body (2) along the vertical direction, and the extension area (12) is located at both ends of the main body area (11) along the X direction; the extension area (12) has a water outlet (121) for draining water flow; an isolation plate (3) covering at least the upper side of the extension area (12); 2. The water absorption preventing structure for a built-in air conditioner according to claim 1, wherein a baffle (4) fixed to one side or both sides of the opening (13) along the Y direction, the baffle (4) extending at least partially to the inner side of the water collecting tray (1); the Y direction and the X direction are both along the horizontal direction, and the Y direction is perpendicular to the X direction. The baffle (4) located on the side of the opening (13) close to the air inlet of the fan (5) of the air conditioner comprises: a first shielding surface (41) fixed to the edge of the opening (13), the first shielding surface (41) extending to the inner side of the water collecting tray (1) along a direction inclined to the vertical direction; 3. The water absorption preventing structure for a built-in air conditioner according to claim 2, characterized in that, a second shielding surface (42) fixed to the edge of the upper end of the first shielding surface (41), the second shielding surface (42) extending to the outer side of the water collecting tray (1) along a direction inclined to the vertical direction.
4. The water absorption preventing structure for a built-in air conditioner according to claim 2, wherein The baffle (4) is a plate with a V-shaped cross section, and the corner of the plate is divided into the first shielding surface (41) and the second shielding surface (42).
5. The water absorption preventing structure for a built-in air conditioner according to claim 2, wherein The connection between the first shielding surface (41) and the water collecting tray (1) is a first arc-shaped transition surface (411).
6. The water absorption preventing structure for a built-in air conditioner according to any one of claims 2 to 5, characterized in that, The connection between the second shielding surface (42) and the edge of the upper end of the first shielding surface (41) is a second arc-shaped transition surface (421).
7. The water absorption preventing structure for a built-in air conditioner according to any one of claims 1 to 5, characterized in that, The included angle between the first shielding surface (41) and the vertical direction is 30-60 degrees, and the included angle between the second shielding surface (42) and the vertical direction is 30-85 degrees.
8. The water absorption preventing structure for a built-in air conditioner according to any one of claims 1 to 5, characterized in that, The edge of the isolation plate (3) abuts against the wall surface of the core body (2).
9. The water absorption preventing structure for a built-in air conditioner according to claim 8, wherein The inner wall of the water collecting tray (1) extends at least partially from both sides to the middle along the direction from top to bottom.
10. The water absorption preventing structure for a built-in air conditioner according to claim 8, wherein The two ends of the isolation plate (3) along the Y direction are attached to and fixed to the inner wall of the water collecting tray (1). The water outlet (121) is located at the lowest point of the extension area (12).