Horizontal air conditioner drain pan
By optimizing the drainage shell structure of the horizontal air conditioner, and utilizing the arc-shaped right water channel and U-shaped cover to accelerate the discharge of condensate, the problem of condensate accumulation was solved, improving the operating efficiency of the air conditioner and environmental hygiene.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU UNIV
- Filing Date
- 2023-08-30
- Publication Date
- 2026-08-04
AI Technical Summary
The condensate drainage speed of existing horizontal air conditioners is not fast enough, which easily leads to water accumulation in the drain pan, causing the air conditioner to become dirty and clogged, breed bacteria, corrode the water pan, and reduce the performance of the unit.
A drainage shell for a horizontal air conditioner was designed, comprising upper and lower drainage channels. An arc-shaped right water channel and a hollow U-shaped cover are used to accelerate the discharge of condensate. Combined with a wind baffle structure, the flow channel is optimized to reduce water accumulation and leakage.
It improves the drainage efficiency of condensate, reduces water accumulation, prevents dirt buildup and leakage inside the air conditioner, and enhances the air conditioner's operating efficiency and environmental health.
Smart Images

Figure CN117128644B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of refrigeration, and more particularly to a drain casing for a horizontal air conditioner. Background Technology
[0002] As people use air conditioning more frequently, it needs to operate for longer periods, leading to higher demands. These demands include aesthetic design, efficient space utilization, high versatility, leak-proof operation, and the effectiveness of water drainage systems in smaller spaces. All these factors impact user experience. For mature, industrialized technologies like air conditioning, designers and developers focus on improving product details, even though achieving these improvements is far more challenging.
[0003] When an air conditioner is operating in cooling mode, indoor air flows through the evaporator of the indoor unit and exchanges heat with the outside air. A large temperature difference will produce condensation. The condensation needs to be discharged through the air conditioner casing. If this condensation is not discharged in time, problems will arise such as water accumulation in the drain pan, which will cause the air conditioner to become dirty and clogged, breed bacteria, and corrode the inner wall of the water pan. It will also seriously affect the performance of the unit and the health of the indoor environment. Foreign objects can also clog the evaporator. Therefore, it is very necessary to improve the drainage capacity of the air conditioning flow channel. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the present invention provides a drainage shell for a horizontal air conditioner, which can solve the problems of insufficient drainage speed of condensate and water accumulation in the drainage channel of the shell compared with the existing horizontal air conditioner shells.
[0005] The present invention achieves the above-mentioned technical objectives through the following technical means.
[0006] A horizontal air conditioner drainage casing includes an upper drainage channel, a right drainage channel, and a lower drainage channel disposed within the air conditioner casing; the upper drainage channel is connected to the lower drainage channel via the right drainage channel; the upper drainage channel includes a fourth baffle rib and a groove; the fourth baffle rib is disposed along the extension direction of the upper side wall, and a groove is disposed at the right end of the upper side wall; the upper surface of the groove is lower than the upper surface of the upper side wall; the fourth baffle rib guides condensate water from the inside of the air conditioner casing into the groove; the groove is connected to the right drainage channel.
[0007] In the above scheme, the right waterway has an arc-shaped structure, and a cover plate is provided at the end of the right waterway that connects to the lower drainage channel; the cover plate introduces the liquid flow into the lower drainage channel.
[0008] In the above scheme, the upper surface of the right waterway input end is flush with the upper surface of the groove.
[0009] In the above scheme, the cover plate is a hollow U-shaped structure.
[0010] In the above scheme, the lower drainage channel includes a trough, a first windbreak rib, a second windbreak rib, a third windbreak rib, and a lower sidewall; the lower sidewall is provided with the first windbreak rib, the second windbreak rib, and the third windbreak rib; wherein, the part between the first windbreak rib and the second windbreak rib is a trough; the part between the third windbreak rib and the lower sidewall is a water-receiving trough.
[0011] In the above scheme, a secondary water channel is provided on the left side of the water tank; and a water outlet is provided at the end of the secondary water channel.
[0012] In the above scheme, the upper surface of the right waterway output end is higher than the upper surface of the tank.
[0013] In the above scheme, the first windbreak rib, the second windbreak rib, and the third windbreak rib are not perpendicular to the lower side wall.
[0014] Beneficial effects: Compared with existing technologies, the air conditioner housing of this invention has the following advantages: By utilizing an improved drainage channel, the potential energy wasted in the upper drainage channel is converted into the kinetic energy of the lower drainage channel moving to the left, avoiding energy waste during the drainage process and allowing for more efficient discharge of condensate. Furthermore, simulations show that less water remains in the drainage channel compared to inclined channel designs. The condensate produced by the condenser flows smoothly through the guide plate during drainage, making the air conditioner's drainage more efficient. The grooves formed can deposit dirt during drainage, reducing the possibility of blockage when reaching the outlet. Attached Figure Description
[0015] Figure 1 This is a right-side schematic diagram of the drainage casing of a horizontal air conditioner involved in an embodiment of the present invention; Figure 2 for Figure 1 The main view; Figure 3 for Figure 2 AA section view; Figure 4 This is a magnified view of a portion of point B. Figure 5 This is a magnified view of a portion of point C.
[0016] Figure label: 1-Upper drainage channel; 2-Upper side wall; 3-Fourth windbreak rib; 4-Groove; 5-Right water channel; 6-Cover plate; 7-Lower drainage channel; 8-Trough; 9-First windbreak rib; 10-Second windbreak rib; 11-Third windbreak rib; 12-Lower side wall; 13-Secondary water channel; 14-Water outlet; 15-Upper edge of right water channel. Detailed Implementation
[0017] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" 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, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0020] A horizontal air conditioner drainage casing includes an upper drainage channel 1, a right drainage channel 5, and a lower drainage channel 7 disposed within the air conditioner casing. The upper drainage channel 1 is connected to the lower drainage channel 7 via the right drainage channel 5. The upper drainage channel 1 includes a fourth baffle 3 and a groove 4. The fourth baffle 3 is arranged along the extension direction of the upper sidewall 2, and the groove 4 is provided at the right end of the upper sidewall 2. The upper surface of the groove 4 is lower than the upper surface of the upper sidewall 2. The fourth baffle 3 guides condensate water from the inside of the air conditioner casing into the groove 4. The groove 4 is connected to the right drainage channel 5.
[0021] In the above scheme, the right waterway 5 has an arc-shaped structure, and a cover plate 6 is provided at the end of the right waterway 5 that connects to the lower drainage channel 7; the cover plate 6 introduces the liquid flow into the lower drainage channel 7.
[0022] In the above scheme, the upper surface of the input end of the right waterway 5 is flush with the upper surface of the groove 4.
[0023] In the above scheme, the cover plate 6 is a hollow U-shaped structure.
[0024] In the above scheme, the lower drainage channel 7 includes a groove 8, a first windbreak 9, a second windbreak 10, a third windbreak 11, and a lower sidewall 12; the lower sidewall 12 is provided with the first windbreak 9, the second windbreak 10, and the third windbreak 11; wherein, the part between the first windbreak 9 and the second windbreak 10 is the groove 8; the part between the third windbreak 11 and the lower sidewall 12 is a water-receiving groove.
[0025] In the above scheme, a secondary water channel 13 is provided on the left side of the water tank; a water outlet 14 is provided at the end of the secondary water channel 13.
[0026] In the above scheme, the upper surface of the output end of the right waterway 5 is higher than the upper surface of the tank 8.
[0027] In the above scheme, the first windbreak rib 9, the second windbreak rib 10, and the third windbreak rib 11 are not perpendicular to the lower side wall 12.
[0028] The condensate produced by the evaporator first drips into the upper drain 1. A windbreak rib 3 is installed on the upper side wall 2 to block the wind and improve the efficiency of the air conditioner. A groove 4 is provided on the right side of the upper drain 1, which is lower than the upper drain. Water can flow to the right drain 5 through the groove 4 to continue the air conditioner condensate drainage process.
[0029] The right water channel 5 is designed with a curved surface. As can be seen in the side view, its side cross-section is arc-shaped. It receives the water flowing down from the upper drain channel 1. The right water channel 5 is installed between the two side walls of the air conditioner itself. Its upper end is flush with the upper surface of the groove 4 on the upper drain channel 1, allowing the water to flow smoothly down the curved surface into the water collection cavity. Moreover, the lower edge of the curved surface is flush with the side wall of the lower drain channel 7, so that the lower edge of the water outlet is higher than the height of the groove 8 in the lower drain channel 7.
[0030] The right waterway 5 has an arc-shaped cross-section, which allows for faster drainage. The low position of the arc also increases the flow rate of the water during the discharge process.
[0031] A cover plate 6 is designed on the lower edge of the curved surface. The cross-sectional shape of the cover plate 6 is U-shaped, meaning that the sidewall of the cover plate 5 is vertically aligned with the curved surface. Simultaneously, when water flows out through the curved surface to the lower drainage channel, the cover plate effectively blocks splashing water, preventing condensate leakage and water from splashing onto the air conditioner evaporator. It also concentrates water into the lower drainage channel 7 of the outer casing, improving drainage capacity.
[0032] The lower drainage channel 7 includes a first windbreak rib 9 and a second windbreak rib 10. The lower side wall 12 is provided with the first windbreak rib 9 and the second windbreak rib 10. This structure can block the wind and reduce the air leakage when the heat exchanger is working in the air conditioner. At the same time, there should be a gap between it and the evaporator to facilitate installation. The lower side wall 12 is also provided with a third water baffle rib 11. In this way, the third water baffle rib 11 and the lower side wall 12 can form a water tank. The water tank can condense water droplets on the inner wall and prevent condensate from leaking to the outer wall of the lower drainage channel. Therefore, it is not necessary to attach a heat insulation pad to the outer wall, saving design costs.
[0033] A secondary waterway 13 is provided at the end of the lower drainage channel 7. A water outlet 14 is provided at the end of the bottom surface of the secondary waterway 13. The condensate flowing into the lower drainage channel can flow into the secondary waterway 13 and be discharged through the water outlet 14 along the bottom surface of the secondary waterway.
[0034] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.
Claims
1. A drainage casing for a horizontal air conditioner, characterized in that, The system includes an upper drainage channel (1), a right water channel (5), and a lower drainage channel (7) located inside the air conditioner casing. The upper drainage channel (1) is connected to the lower drainage channel (7) via the right water channel (5). The upper drainage channel (1) includes a fourth baffle rib (3) and a groove (4). The fourth baffle rib (3) is arranged along the extension direction of the upper side wall (2), and a groove (4) is provided at the right end of the upper side wall (2). The upper surface of the groove (4) is lower than the upper surface of the upper side wall (2). The fourth baffle rib (3) guides the condensate inside the air conditioner casing into the groove (4). The groove (4) is connected to the right water channel (5). The right water channel (5) has an arc-shaped structure, and a cover plate (6) is provided at the end of the right water channel (5) that connects to the lower drainage channel (7). The cover plate (6) introduces the liquid flow into the lower drainage channel (7). The upper surface of the input end of the right water channel (5) is flush with the upper surface of the groove (4).
2. The drainage casing of the horizontal air conditioner according to claim 1, characterized in that, The cover plate (6) has a hollow U-shaped structure.
3. The drainage casing of the horizontal air conditioner according to claim 1, characterized in that, The lower drainage channel (7) includes a groove (8), a first windbreak rib (9), a second windbreak rib (10), a third windbreak rib (11), and a lower side wall (12); the lower side wall (12) is provided with the first windbreak rib (9), the second windbreak rib (10), and the third windbreak rib (11); wherein, the part between the first windbreak rib (9) and the second windbreak rib (10) is the groove (8); the part between the third windbreak rib (11) and the lower side wall (12) is the water-containing groove.
4. The drainage casing of the horizontal air conditioner according to claim 3, characterized in that, A secondary water channel (13) is provided on the left side of the water tank; a water outlet (14) is provided at the end of the secondary water channel (13).
5. The drainage casing of the horizontal air conditioner according to claim 3, characterized in that, The upper surface of the output end of the right waterway (5) is higher than the upper surface of the tank (8).
6. The drainage casing of the horizontal air conditioner according to claim 3, characterized in that, The first windbreak rib (9), the second windbreak rib (10), and the third windbreak rib (11) are not perpendicular to the lower side wall (12).